diff --git a/foundation_system/.dockerignore b/foundation_system/.dockerignore
new file mode 100644
index 0000000..b4b896f
--- /dev/null
+++ b/foundation_system/.dockerignore
@@ -0,0 +1,8 @@
+**/.dockerignore
+**/.git
+**/.gitignore
+**/.vs
+**/.vscode
+**/bin
+**/obj
+**/logs
diff --git a/foundation_system/Controllers/AccountController.cs b/foundation_system/Controllers/AccountController.cs
new file mode 100644
index 0000000..ad692e0
--- /dev/null
+++ b/foundation_system/Controllers/AccountController.cs
@@ -0,0 +1,156 @@
+using System.Security.Claims;
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication.Cookies;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using foundation_system.Models.ViewModels;
+using foundation_system.Services;
+
+namespace foundation_system.Controllers;
+
+public class AccountController : Controller
+{
+    private readonly IAuthService _authService;
+    private readonly ILogger<AccountController> _logger;
+    
+    public AccountController(IAuthService authService, ILogger<AccountController> logger)
+    {
+        _authService = authService;
+        _logger = logger;
+    }
+    
+    // GET: /Account/Login
+    [HttpGet]
+    [AllowAnonymous]
+    public IActionResult Login(string? returnUrl = null)
+    {
+        if (User.Identity?.IsAuthenticated == true)
+        {
+            return RedirectToAction("Index", "Home");
+        }
+        
+        ViewData["ReturnUrl"] = returnUrl;
+        return View();
+    }
+    
+    // POST: /Account/Login
+    [HttpPost]
+    [AllowAnonymous]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> Login(LoginViewModel model, string? returnUrl = null)
+    {
+        ViewData["ReturnUrl"] = returnUrl;
+        
+        if (!ModelState.IsValid)
+        {
+            return View(model);
+        }
+        
+        var usuario = await _authService.ValidateUserAsync(model.NombreUsuario, model.Contrasena);
+        
+        if (usuario == null)
+        {
+            ModelState.AddModelError(string.Empty, "Usuario o contraseña incorrectos");
+            return View(model);
+        }
+        
+        // Get user roles
+        var roles = await _authService.GetUserRolesAsync(usuario.Id);
+        
+        // Create claims
+        var claims = new List<Claim>
+        {
+            new(ClaimTypes.NameIdentifier, usuario.Id.ToString()),
+            new(ClaimTypes.Name, usuario.NombreUsuario),
+            new(ClaimTypes.Email, usuario.Email),
+            new("FullName", usuario.Persona?.NombreCompleto ?? usuario.NombreUsuario)
+        };
+        
+        // Add role claims
+        foreach (var role in roles)
+        {
+            claims.Add(new Claim(ClaimTypes.Role, role));
+        }
+        
+        var claimsIdentity = new ClaimsIdentity(claims, CookieAuthenticationDefaults.AuthenticationScheme);
+        
+        var authProperties = new AuthenticationProperties
+        {
+            IsPersistent = model.RecordarMe,
+            ExpiresUtc = model.RecordarMe 
+                ? DateTimeOffset.UtcNow.AddDays(30) 
+                : DateTimeOffset.UtcNow.AddHours(8)
+        };
+        
+        await HttpContext.SignInAsync(
+            CookieAuthenticationDefaults.AuthenticationScheme,
+            new ClaimsPrincipal(claimsIdentity),
+            authProperties);
+        
+        // Update last login
+        await _authService.UpdateLastLoginAsync(usuario.Id);
+        
+        _logger.LogInformation("User {Username} logged in", usuario.NombreUsuario);
+        
+        if (!string.IsNullOrEmpty(returnUrl) && Url.IsLocalUrl(returnUrl))
+        {
+            return Redirect(returnUrl);
+        }
+        
+        return RedirectToAction("Index", "Home");
+    }
+    
+    // GET: /Account/Register
+    [HttpGet]
+    [AllowAnonymous]
+    public IActionResult Register()
+    {
+        if (User.Identity?.IsAuthenticated == true)
+        {
+            return RedirectToAction("Index", "Home");
+        }
+        
+        return View();
+    }
+    
+    // POST: /Account/Register
+    [HttpPost]
+    [AllowAnonymous]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> Register(RegisterViewModel model)
+    {
+        if (!ModelState.IsValid)
+        {
+            return View(model);
+        }
+        
+        var (success, message, _) = await _authService.RegisterUserAsync(model);
+        
+        if (!success)
+        {
+            ModelState.AddModelError(string.Empty, message);
+            return View(model);
+        }
+        
+        TempData["SuccessMessage"] = "¡Registro exitoso! Ahora puedes iniciar sesión.";
+        return RedirectToAction(nameof(Login));
+    }
+    
+    // POST: /Account/Logout
+    [HttpPost]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> Logout()
+    {
+        await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
+        _logger.LogInformation("User logged out");
+        return RedirectToAction("Index", "Home");
+    }
+    
+    // GET: /Account/AccessDenied
+    [HttpGet]
+    [AllowAnonymous]
+    public IActionResult AccessDenied()
+    {
+        return View();
+    }
+}
diff --git a/foundation_system/Controllers/AntecedentesController.cs b/foundation_system/Controllers/AntecedentesController.cs
new file mode 100644
index 0000000..c77ecac
--- /dev/null
+++ b/foundation_system/Controllers/AntecedentesController.cs
@@ -0,0 +1,125 @@
+using foundation_system.Data;
+using foundation_system.Models;
+using foundation_system.Models.ViewModels;
+using foundation_system.Services;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace foundation_system.Controllers;
+
+public class AntecedentesController : Controller
+{
+    private readonly ApplicationDbContext _context;
+    private readonly IAntecedentesService _antecedentesService;
+
+    public AntecedentesController(ApplicationDbContext context, IAntecedentesService antecedentesService)
+    {
+        _context = context;
+        _antecedentesService = antecedentesService;
+    }
+
+    // GET: Antecedentes
+    public async Task<IActionResult> Index(string search = "", int page = 1, int pageSize = 10)
+    {
+        var query = _context.Ninos
+            .Include(n => n.Persona)
+            .Where(n => n.Activo);
+
+        List<long> searchIds = new();
+        if (!string.IsNullOrWhiteSpace(search))
+        {
+            searchIds = await PostgresQueryExecutor.ExecuteQueryAsync(
+                _context,
+                "SELECT id FROM buscar_personas_v2(@term, 'NINO')",
+                reader => reader.GetInt64(0),
+                p => p.AddWithValue("term", search)
+            );
+            
+            query = query.Where(n => searchIds.Contains(n.Id));
+        }
+
+        var totalItems = await query.CountAsync();
+        var totalPages = (int)Math.Ceiling(totalItems / (double)pageSize);
+        page = Math.Max(1, Math.Min(page, totalPages > 0 ? totalPages : 1));
+
+        var ninos = await query
+            .OrderByDescending(n => n.CreadoEn)
+            .Skip((page - 1) * pageSize)
+            .Take(pageSize)
+            .ToListAsync();
+
+        if (!string.IsNullOrWhiteSpace(search))
+        {
+            // Preserve the order from the fuzzy search procedure
+            ninos = ninos.OrderBy(n => searchIds.IndexOf(n.Id)).ToList();
+        }
+
+        ViewBag.Search = search;
+        ViewBag.CurrentPage = page;
+        ViewBag.TotalPages = totalPages;
+        
+        return View(ninos);
+    }
+
+    // GET: Antecedentes/Manage/5
+    public async Task<IActionResult> Manage(long id)
+    {
+        var nino = await _context.Ninos
+            .Include(n => n.Persona)
+            .FirstOrDefaultAsync(n => n.Id == id);
+
+        if (nino == null) return NotFound();
+
+        var historial = await _antecedentesService.GetHistorialByNinoIdAsync(id);
+
+        var viewModel = new AntecedentesViewModel
+        {
+            Nino = nino,
+            Historial = historial
+        };
+
+        return View(viewModel);
+    }
+
+    // POST: Antecedentes/Create
+    [HttpPost]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> Create(long ninoId, AntecedentesViewModel model)
+    {
+        if (ModelState.IsValid)
+        {
+            var antecedente = new AntecedenteNino
+            {
+                NinoId = ninoId,
+                FechaIncidente = model.FechaIncidente,
+                TipoAntecedente = model.TipoAntecedente,
+                Descripcion = model.Descripcion,
+                Gravedad = model.Gravedad,
+                UsuarioRegistra = User.Identity?.Name ?? "Sistema",
+                Activo = true,
+                CreadoEn = DateTime.UtcNow,
+                ActualizadoEn = DateTime.UtcNow
+            };
+
+            var success = await _antecedentesService.AddAntecedenteAsync(antecedente);
+            if (success)
+            {
+                return RedirectToAction(nameof(Manage), new { id = ninoId });
+            }
+            
+            ModelState.AddModelError("", "Error al guardar el antecedente.");
+        }
+
+        // Si falla, recargar la vista Manage con los datos actuales
+        var nino = await _context.Ninos
+            .Include(n => n.Persona)
+            .FirstOrDefaultAsync(n => n.Id == ninoId);
+        
+        if (nino == null) return NotFound();
+
+        model.Nino = nino;
+        model.Historial = await _antecedentesService.GetHistorialByNinoIdAsync(ninoId);
+        
+        return View("Manage", model);
+    }
+}
diff --git a/foundation_system/Controllers/AsistenciaController.cs b/foundation_system/Controllers/AsistenciaController.cs
new file mode 100644
index 0000000..e148227
--- /dev/null
+++ b/foundation_system/Controllers/AsistenciaController.cs
@@ -0,0 +1,226 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using foundation_system.Data;
+using foundation_system.Models;
+using foundation_system.Models.ViewModels;
+
+namespace foundation_system.Controllers;
+
+public class AsistenciaController : Controller
+{
+    private readonly ApplicationDbContext _context;
+
+    public AsistenciaController(ApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    // GET: Asistencia
+    public async Task<IActionResult> Index(int? año, int? mes, string? diasSemana)
+    {
+        int targetAnio = año ?? DateTime.Now.Year;
+        int targetMes = mes ?? DateTime.Now.Month;
+        
+        var diasSeleccionadosList = string.IsNullOrEmpty(diasSemana) 
+            ? new List<string> { "1", "2", "3", "4", "5" } 
+            : diasSemana.Split(',', StringSplitOptions.RemoveEmptyEntries).ToList();
+
+        var firstDayOfMonth = new DateTime(targetAnio, targetMes, 1);
+        var lastDayOfMonth = firstDayOfMonth.AddMonths(1).AddDays(-1);
+
+        var ninos = await _context.Ninos
+            .Include(n => n.Persona)
+            .Where(n => n.Activo && n.Estado == "ACTIVO")
+            .OrderBy(n => n.Persona.Nombres)
+            .ToListAsync();
+
+        var firstDateOnly = DateOnly.FromDateTime(firstDayOfMonth);
+        var lastDateOnly = DateOnly.FromDateTime(lastDayOfMonth);
+
+        var asistencias = await _context.Asistencias
+            .Where(a => a.Fecha >= firstDateOnly && a.Fecha <= lastDateOnly)
+            .ToListAsync();
+
+        var viewModel = new AsistenciaGridViewModel
+        {
+            Año = targetAnio,
+            Mes = targetMes,
+            NombreMes = firstDayOfMonth.ToString("MMMM", new System.Globalization.CultureInfo("es-ES")).ToUpper(),
+            DiasSemanaSeleccionados = string.Join(",", diasSeleccionadosList),
+            DiasDelMes = Enumerable.Range(0, lastDayOfMonth.Day)
+                .Select(day => firstDayOfMonth.AddDays(day))
+                .ToList(),
+            Expedientes = ninos,
+            Asistencias = asistencias.ToDictionary(
+                a => $"{a.NinoId}_{a.Fecha:yyyy-MM-dd}",
+                a => a.Estado switch {
+                    "PRESENTE" => "P",
+                    "TARDE" => "T",
+                    "AUSENTE" => "F",
+                    "JUSTIFICADO" => "J",
+                    "ENFERMO" => "E",
+                    _ => ""
+                }
+            )
+        };
+
+        ViewBag.Años = Enumerable.Range(DateTime.Now.Year - 5, 10)
+            .Select(a => new Microsoft.AspNetCore.Mvc.Rendering.SelectListItem 
+            { 
+                Value = a.ToString(), 
+                Text = a.ToString(), 
+                Selected = a == targetAnio 
+            }).ToList();
+
+        ViewBag.Meses = Enumerable.Range(1, 12)
+            .Select(m => new Microsoft.AspNetCore.Mvc.Rendering.SelectListItem 
+            { 
+                Value = m.ToString(), 
+                Text = new DateTime(2000, m, 1).ToString("MMMM", new System.Globalization.CultureInfo("es-ES")).ToUpper(),
+                Selected = m == targetMes
+            }).ToList();
+
+        ViewBag.DiasSemana = new List<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>
+        {
+            new() { Value = "1", Text = "Lunes" },
+            new() { Value = "2", Text = "Martes" },
+            new() { Value = "3", Text = "Miércoles" },
+            new() { Value = "4", Text = "Jueves" },
+            new() { Value = "5", Text = "Viernes" },
+            new() { Value = "6", Text = "Sábado" },
+            new() { Value = "0", Text = "Domingo" }
+        };
+
+        return View(viewModel);
+    }
+
+    [HttpGet]
+    public async Task<JsonResult> ObtenerEstadisticas(int año, int mes)
+    {
+        var firstDay = new DateOnly(año, mes, 1);
+        var lastDay = firstDay.AddMonths(1).AddDays(-1);
+
+        var asistencias = await _context.Asistencias
+            .Where(a => a.Fecha >= firstDay && a.Fecha <= lastDay)
+            .ToListAsync();
+
+        return Json(new
+        {
+            total = asistencias.Count,
+            presentes = asistencias.Count(a => a.Estado == "PRESENTE"),
+            tardes = asistencias.Count(a => a.Estado == "TARDE"),
+            faltas = asistencias.Count(a => a.Estado == "AUSENTE"),
+            justificados = asistencias.Count(a => a.Estado == "JUSTIFICADO"),
+            enfermos = asistencias.Count(a => a.Estado == "ENFERMO")
+        });
+    }
+
+    [HttpPost]
+    public async Task<IActionResult> GuardarAsistencia(long expedienteId, DateOnly fecha, string estado)
+    {
+        string dbEstado = estado switch
+        {
+            "P" => "PRESENTE",
+            "T" => "TARDE",
+            "F" => "AUSENTE",
+            "J" => "JUSTIFICADO",
+            "E" => "ENFERMO",
+            _ => ""
+        };
+
+        if (string.IsNullOrEmpty(dbEstado))
+        {
+            // Si el estado es vacío, podríamos borrar el registro o dejarlo como pendiente
+            var existing = await _context.Asistencias
+                .FirstOrDefaultAsync(a => a.NinoId == expedienteId && a.Fecha == fecha);
+            if (existing != null)
+            {
+                _context.Asistencias.Remove(existing);
+                await _context.SaveChangesAsync();
+            }
+            return Json(new { success = true });
+        }
+
+        var asistencia = await _context.Asistencias
+            .FirstOrDefaultAsync(a => a.NinoId == expedienteId && a.Fecha == fecha);
+
+        if (asistencia == null)
+        {
+            asistencia = new Asistencia
+            {
+                NinoId = expedienteId,
+                Fecha = fecha,
+                Estado = dbEstado,
+                CreadoEn = DateTime.UtcNow
+            };
+            _context.Asistencias.Add(asistencia);
+        }
+        else
+        {
+            asistencia.Estado = dbEstado;
+        }
+
+        await _context.SaveChangesAsync();
+        return Json(new { success = true });
+    }
+
+    [HttpPost]
+    public async Task<IActionResult> GuardarAsistenciasMasivas([FromBody] List<AsistenciaInputModel> cambios)
+    {
+        foreach (var cambio in cambios)
+        {
+            string dbEstado = cambio.Estado switch
+            {
+                "P" => "PRESENTE",
+                "T" => "TARDE",
+                "F" => "AUSENTE",
+                "J" => "JUSTIFICADO",
+                "E" => "ENFERMO",
+                _ => ""
+            };
+
+            var asistencia = await _context.Asistencias
+                .FirstOrDefaultAsync(a => a.NinoId == cambio.ExpedienteId && a.Fecha == cambio.Fecha);
+
+            if (string.IsNullOrEmpty(dbEstado))
+            {
+                if (asistencia != null) _context.Asistencias.Remove(asistencia);
+            }
+            else
+            {
+                if (asistencia == null)
+                {
+                    _context.Asistencias.Add(new Asistencia
+                    {
+                        NinoId = cambio.ExpedienteId,
+                        Fecha = cambio.Fecha,
+                        Estado = dbEstado,
+                        CreadoEn = DateTime.UtcNow
+                    });
+                }
+                else
+                {
+                    asistencia.Estado = dbEstado;
+                }
+            }
+        }
+
+        await _context.SaveChangesAsync();
+        return Json(new { success = true, message = "Cambios guardados correctamente" });
+    }
+
+    [HttpGet]
+    public IActionResult ExportarExcel(int año, int mes, string diasSemana)
+    {
+        // Placeholder for Excel export
+        return File(new byte[0], "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", $"Asistencia_{año}_{mes}.xlsx");
+    }
+}
+
+public class AsistenciaInputModel
+{
+    public long ExpedienteId { get; set; }
+    public DateOnly Fecha { get; set; }
+    public string Estado { get; set; } = string.Empty;
+}
+
diff --git a/foundation_system/Controllers/ConfiguracionController.cs b/foundation_system/Controllers/ConfiguracionController.cs
new file mode 100644
index 0000000..db217f1
--- /dev/null
+++ b/foundation_system/Controllers/ConfiguracionController.cs
@@ -0,0 +1,85 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using foundation_system.Data;
+using foundation_system.Models;
+
+namespace foundation_system.Controllers;
+
+public class ConfiguracionController : Controller
+{
+    private readonly ApplicationDbContext _context;
+
+    public ConfiguracionController(ApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    // GET: Configuracion
+    public async Task<IActionResult> Index(string? categoria)
+    {
+        var query = _context.Configuraciones.AsQueryable();
+
+        if (!string.IsNullOrEmpty(categoria))
+        {
+            query = query.Where(c => c.Categoria == categoria);
+        }
+
+        var configuraciones = await query
+            .OrderBy(c => c.Categoria)
+            .ThenBy(c => c.Grupo)
+            .ThenBy(c => c.Orden)
+            .ToListAsync();
+
+        ViewBag.Categorias = await _context.Configuraciones
+            .Select(c => c.Categoria)
+            .Distinct()
+            .ToListAsync();
+            
+        ViewBag.SelectedCategoria = categoria;
+
+        return View(configuraciones);
+    }
+
+    // GET: Configuracion/Edit/5
+    public async Task<IActionResult> Edit(int? id)
+    {
+        if (id == null) return NotFound();
+
+        var config = await _context.Configuraciones.FindAsync(id);
+        if (config == null || !config.EsEditable) return NotFound();
+
+        return View(config);
+    }
+
+    // POST: Configuracion/Edit/5
+    [HttpPost]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> Edit(int id, [Bind("Id,Valor")] ConfiguracionSistema model)
+    {
+        if (id != model.Id) return NotFound();
+
+        var config = await _context.Configuraciones.FindAsync(id);
+        if (config == null || !config.EsEditable) return NotFound();
+
+        try
+        {
+            config.Valor = model.Valor;
+            config.ActualizadoEn = DateTime.UtcNow;
+            
+            _context.Update(config);
+            await _context.SaveChangesAsync();
+            
+            return RedirectToAction(nameof(Index), new { categoria = config.Categoria });
+        }
+        catch (DbUpdateConcurrencyException)
+        {
+            if (!ConfiguracionExists(model.Id)) return NotFound();
+            else throw;
+        }
+    }
+
+    private bool ConfiguracionExists(int id)
+    {
+        return _context.Configuraciones.Any(e => e.Id == id);
+    }
+}
diff --git a/foundation_system/Controllers/ExpedienteController.cs b/foundation_system/Controllers/ExpedienteController.cs
new file mode 100644
index 0000000..e38924e
--- /dev/null
+++ b/foundation_system/Controllers/ExpedienteController.cs
@@ -0,0 +1,556 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using foundation_system.Data;
+using foundation_system.Models;
+using foundation_system.Models.ViewModels;
+using foundation_system.Services;
+
+namespace foundation_system.Controllers;
+
+public class ExpedienteController : Controller
+{
+    private readonly ApplicationDbContext _context;
+    private readonly IWebHostEnvironment _hostingEnvironment;
+    private readonly IAntecedentesService _antecedentesService;
+
+    public ExpedienteController(ApplicationDbContext context, IWebHostEnvironment hostingEnvironment, IAntecedentesService antecedentesService)
+    {
+        _context = context;
+        _hostingEnvironment = hostingEnvironment;
+        _antecedentesService = antecedentesService;
+    }
+
+    // GET: Expediente
+    public async Task<IActionResult> Index(string search = "", int page = 1, int pageSize = 10)
+    {
+        var query = _context.Ninos
+            .Include(n => n.Persona)
+            .Where(n => n.Activo);
+
+        List<long> searchIds = new();
+        if (!string.IsNullOrWhiteSpace(search))
+        {
+            searchIds = await PostgresQueryExecutor.ExecuteQueryAsync(
+                _context,
+                "SELECT id FROM buscar_personas_v2(@term, 'NINO')",
+                reader => reader.GetInt64(0),
+                p => p.AddWithValue("term", search)
+            );
+            
+            query = query.Where(n => searchIds.Contains(n.Id));
+        }
+
+        var totalItems = await query.CountAsync();
+        var totalPages = (int)Math.Ceiling(totalItems / (double)pageSize);
+        
+        // Asegurar que la página esté en rango
+        page = Math.Max(1, Math.Min(page, totalPages > 0 ? totalPages : 1));
+
+        var ninos = await query
+            .OrderByDescending(n => n.CreadoEn)
+            .Skip((page - 1) * pageSize)
+            .Take(pageSize)
+            .ToListAsync();
+
+        if (!string.IsNullOrWhiteSpace(search))
+        {
+            // Preserve the order from the fuzzy search procedure
+            ninos = ninos.OrderBy(n => searchIds.IndexOf(n.Id)).ToList();
+        }
+
+        ViewBag.Search = search;
+        ViewBag.CurrentPage = page;
+        ViewBag.TotalPages = totalPages;
+        ViewBag.HasPreviousPage = page > 1;
+        ViewBag.HasNextPage = page < totalPages;
+        ViewBag.PageSize = pageSize;
+            
+        return View(ninos);
+    }
+
+    // GET: Expediente/Details/5
+    public async Task<IActionResult> Details(long? id)
+    {
+        if (id == null) return NotFound();
+
+        var nino = await _context.Ninos
+            .Include(n => n.Persona)
+            .FirstOrDefaultAsync(m => m.Id == id);
+
+        if (nino == null) return NotFound();
+
+        var model = await MapToExpedienteViewModel(nino);
+        return View(model);
+    }
+
+    // GET: Expediente/Print/5
+    public async Task<IActionResult> Print(long? id)
+    {
+        if (id == null) return NotFound();
+
+        var nino = await _context.Ninos
+            .Include(n => n.Persona)
+            .FirstOrDefaultAsync(m => m.Id == id);
+
+        if (nino == null) return NotFound();
+
+        var model = await MapToExpedienteViewModel(nino);
+        var antecedentes = await _antecedentesService.GetHistorialByNinoIdAsync(id.Value);
+        
+        ViewBag.Antecedentes = antecedentes;
+        
+        return View(model);
+    }
+
+    private async Task<ExpedienteViewModel> MapToExpedienteViewModel(Nino nino)
+    {
+        var model = new ExpedienteViewModel
+        {
+            Id = nino.Id,
+            Nombres = nino.Persona.Nombres,
+            Apellidos = nino.Persona.Apellidos,
+            Dui = nino.Persona.Dui,
+            Nit = nino.Persona.Nit,
+            FechaNacimiento = nino.Persona.FechaNacimiento,
+            Genero = nino.Persona.Genero,
+            Email = nino.Persona.Email,
+            Telefono = nino.Persona.Telefono,
+            Direccion = nino.Persona.Direccion,
+            FotoUrl = nino.Persona.FotoUrl,
+            CodigoInscripcion = nino.CodigoInscripcion,
+            FechaInscripcion = nino.FechaInscripcion,
+            Estado = nino.Estado,
+            NivelGrado = nino.NivelGrado,
+            Alergias = nino.Alergias,
+            ContactoEmergenciaNombre = nino.ContactoEmergenciaNombre,
+            ContactoEmergenciaTelefono = nino.ContactoEmergenciaTelefono
+        };
+
+        var encargados = await _context.EncargadosNino
+            .Include(e => e.Persona)
+            .Where(e => e.NinoId == nino.Id)
+            .ToListAsync();
+
+        var padre = encargados.FirstOrDefault(e => e.Parentesco == "PADRE");
+        if (padre != null)
+        {
+            model.PadreId = padre.PersonaId;
+            model.PadreNombre = padre.Persona.NombreCompleto;
+        }
+
+        var madre = encargados.FirstOrDefault(e => e.Parentesco == "MADRE");
+        if (madre != null)
+        {
+            model.MadreId = madre.PersonaId;
+            model.MadreNombre = madre.Persona.NombreCompleto;
+        }
+
+        var encargado = encargados.FirstOrDefault(e => e.Parentesco == "ENCARGADO");
+        if (encargado != null)
+        {
+            model.EncargadoId = encargado.PersonaId;
+            model.EncargadoNombre = encargado.Persona.NombreCompleto;
+        }
+
+        return model;
+    }
+
+    // GET: Expediente/Create
+    public IActionResult Create()
+    {
+        return View(new ExpedienteViewModel());
+    }
+
+    // POST: Expediente/Create
+    [HttpPost]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> Create(ExpedienteViewModel model)
+    {
+        if (ModelState.IsValid)
+        {
+            using var transaction = await _context.Database.BeginTransactionAsync();
+            try
+            {
+                var persona = new Persona
+                {
+                    Nombres = model.Nombres,
+                    Apellidos = model.Apellidos,
+                    Dui = model.Dui,
+                    Nit = model.Nit,
+                    FechaNacimiento = model.FechaNacimiento,
+                    Genero = model.Genero,
+                    Email = model.Email,
+                    Telefono = null, // Los niños no tienen teléfono
+                    Direccion = model.Direccion,
+                    FotoUrl = string.IsNullOrEmpty(model.FotoUrl) ? "/Assets/default_avatar.png" : model.FotoUrl,
+                    Activo = true
+                };
+
+                _context.Personas.Add(persona);
+                await _context.SaveChangesAsync();
+
+                // Generar Código de Inscripción automáticamente usando procedimiento almacenado
+                var nuevoCodigo = await PostgresScalarExecutor.ExecuteAsync<string>(
+                    _context,
+                    "SELECT generar_codigo_inscripcion(@apellidos, @anio)",
+                    p =>
+                    {
+                        p.AddWithValue("apellidos", persona.Apellidos);
+                        p.AddWithValue("anio", model.FechaInscripcion.Year);
+                    }
+                );
+
+
+                var nino = new Nino
+                {
+                    PersonaId = persona.Id,
+                    CodigoInscripcion = nuevoCodigo,
+                    FechaInscripcion = model.FechaInscripcion,
+                    Estado = model.Estado,
+                    NivelGrado = model.NivelGrado,
+                    Alergias = model.Alergias,
+                    ContactoEmergenciaNombre = model.ContactoEmergenciaNombre,
+                    ContactoEmergenciaTelefono = model.ContactoEmergenciaTelefono,
+                    Activo = true
+                };
+
+                _context.Ninos.Add(nino);
+                await _context.SaveChangesAsync();
+
+                // Procesar foto si se subió una
+                if (model.FotoFile != null)
+                {
+                    var fotoUrl = await ProcessPhotoUpload(model.FotoFile, nino.CodigoInscripcion);
+                    persona.FotoUrl = fotoUrl;
+                    await _context.SaveChangesAsync();
+                }
+
+                // Guardar Padres si se seleccionaron
+                if (model.PadreId.HasValue)
+                {
+                    _context.EncargadosNino.Add(new EncargadoNino
+                    {
+                        NinoId = nino.Id,
+                        PersonaId = model.PadreId.Value,
+                        Parentesco = "PADRE",
+                        EsPrincipal = false
+                    });
+                }
+
+                if (model.MadreId.HasValue)
+                {
+                    _context.EncargadosNino.Add(new EncargadoNino
+                    {
+                        NinoId = nino.Id,
+                        PersonaId = model.MadreId.Value,
+                        Parentesco = "MADRE",
+                        EsPrincipal = false
+                    });
+                }
+
+                if (model.EncargadoId.HasValue)
+                {
+                    _context.EncargadosNino.Add(new EncargadoNino
+                    {
+                        NinoId = nino.Id,
+                        PersonaId = model.EncargadoId.Value,
+                        Parentesco = "ENCARGADO",
+                        EsPrincipal = true
+                    });
+                }
+
+                if (model.PadreId.HasValue || model.MadreId.HasValue || model.EncargadoId.HasValue)
+                {
+                    await _context.SaveChangesAsync();
+                }
+
+                await transaction.CommitAsync();
+                return RedirectToAction(nameof(Index));
+            }
+            catch (Exception ex)
+            {
+                await transaction.RollbackAsync();
+                ModelState.AddModelError("", "Ocurrió un error al guardar el expediente.\n" + ex.Message);
+            }
+        }
+        return View(model);
+    }
+
+    // GET: Expediente/Edit/5
+    public async Task<IActionResult> Edit(long? id)
+    {
+        if (id == null) return NotFound();
+
+        var nino = await _context.Ninos
+            .Include(n => n.Persona)
+            .FirstOrDefaultAsync(n => n.Id == id);
+
+        if (nino == null) return NotFound();
+
+        var model = new ExpedienteViewModel
+        {
+            Id = nino.Id,
+            Nombres = nino.Persona.Nombres,
+            Apellidos = nino.Persona.Apellidos,
+            Dui = nino.Persona.Dui,
+            Nit = nino.Persona.Nit,
+            FechaNacimiento = nino.Persona.FechaNacimiento,
+            Genero = nino.Persona.Genero,
+            Email = nino.Persona.Email,
+            Telefono = nino.Persona.Telefono,
+            Direccion = nino.Persona.Direccion,
+            FotoUrl = nino.Persona.FotoUrl,
+            CodigoInscripcion = nino.CodigoInscripcion,
+            FechaInscripcion = nino.FechaInscripcion,
+            Estado = nino.Estado,
+            NivelGrado = nino.NivelGrado,
+            Alergias = nino.Alergias,
+            ContactoEmergenciaNombre = nino.ContactoEmergenciaNombre,
+            ContactoEmergenciaTelefono = nino.ContactoEmergenciaTelefono
+        };
+
+        // Cargar Padres/Encargados
+        var encargados = await _context.EncargadosNino
+            .Include(e => e.Persona)
+            .Where(e => e.NinoId == id)
+            .ToListAsync();
+
+        var padre = encargados.FirstOrDefault(e => e.Parentesco == "PADRE");
+        if (padre != null)
+        {
+            model.PadreId = padre.PersonaId;
+            model.PadreNombre = $"{padre.Persona.Nombres} {padre.Persona.Apellidos}";
+        }
+
+        var madre = encargados.FirstOrDefault(e => e.Parentesco == "MADRE");
+        if (madre != null)
+        {
+            model.MadreId = madre.PersonaId;
+            model.MadreNombre = $"{madre.Persona.Nombres} {madre.Persona.Apellidos}";
+        }
+
+        var encargado = encargados.FirstOrDefault(e => e.Parentesco == "ENCARGADO");
+        if (encargado != null)
+        {
+            model.EncargadoId = encargado.PersonaId;
+            model.EncargadoNombre = $"{encargado.Persona.Nombres} {encargado.Persona.Apellidos}";
+        }
+
+        return View(model);
+    }
+
+    // POST: Expediente/Edit/5
+    [HttpPost]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> Edit(long id, ExpedienteViewModel model)
+    {
+        if (id != model.Id) return NotFound();
+
+        if (ModelState.IsValid)
+        {
+            using var transaction = await _context.Database.BeginTransactionAsync();
+            try
+            {
+                var nino = await _context.Ninos
+                    .Include(n => n.Persona)
+                    .FirstOrDefaultAsync(n => n.Id == id);
+
+                if (nino == null) return NotFound();
+
+                // Update Persona
+                nino.Persona.Nombres = model.Nombres;
+                nino.Persona.Apellidos = model.Apellidos;
+                nino.Persona.Dui = model.Dui;
+                nino.Persona.Nit = model.Nit;
+                nino.Persona.FechaNacimiento = model.FechaNacimiento;
+                nino.Persona.Genero = model.Genero;
+                nino.Persona.Email = model.Email;
+                nino.Persona.Telefono = null; // Los niños no tienen teléfono
+                nino.Persona.Direccion = model.Direccion;
+                
+                // Procesar foto si se subió una nueva
+                if (model.FotoFile != null)
+                {
+                    nino.Persona.FotoUrl = await ProcessPhotoUpload(model.FotoFile, nino.CodigoInscripcion);
+                }
+                else if (string.IsNullOrEmpty(nino.Persona.FotoUrl))
+                {
+                    nino.Persona.FotoUrl = "/Assets/default_avatar.png";
+                }
+
+                nino.Persona.ActualizadoEn = DateTime.UtcNow;
+
+                // Update Nino
+                nino.CodigoInscripcion = model.CodigoInscripcion;
+                nino.FechaInscripcion = model.FechaInscripcion;
+                nino.Estado = model.Estado;
+                nino.NivelGrado = model.NivelGrado;
+                nino.Alergias = model.Alergias;
+                nino.ContactoEmergenciaNombre = model.ContactoEmergenciaNombre;
+                nino.ContactoEmergenciaTelefono = model.ContactoEmergenciaTelefono;
+                nino.ActualizadoEn = DateTime.UtcNow;
+
+                await _context.SaveChangesAsync();
+
+                // Actualizar Encargados (Eliminar y volver a agregar para simplicidad)
+                var encargadosExistentes = await _context.EncargadosNino
+                    .Where(e => e.NinoId == id)
+                    .ToListAsync();
+                _context.EncargadosNino.RemoveRange(encargadosExistentes);
+                await _context.SaveChangesAsync();
+
+                if (model.PadreId.HasValue)
+                {
+                    _context.EncargadosNino.Add(new EncargadoNino
+                    {
+                        NinoId = nino.Id,
+                        PersonaId = model.PadreId.Value,
+                        Parentesco = "PADRE",
+                        EsPrincipal = false
+                    });
+                }
+
+                if (model.MadreId.HasValue)
+                {
+                    _context.EncargadosNino.Add(new EncargadoNino
+                    {
+                        NinoId = nino.Id,
+                        PersonaId = model.MadreId.Value,
+                        Parentesco = "MADRE",
+                        EsPrincipal = false
+                    });
+                }
+
+                if (model.EncargadoId.HasValue)
+                {
+                    _context.EncargadosNino.Add(new EncargadoNino
+                    {
+                        NinoId = nino.Id,
+                        PersonaId = model.EncargadoId.Value,
+                        Parentesco = "ENCARGADO",
+                        EsPrincipal = true
+                    });
+                }
+
+                await _context.SaveChangesAsync();
+                await transaction.CommitAsync();
+
+                return RedirectToAction(nameof(Index));
+            }
+            catch (Exception ex)
+            {
+                await transaction.RollbackAsync();
+                ModelState.AddModelError("", "Ocurrió un error al actualizar el expediente.\n" + ex.Message);
+            }
+        }
+        return View(model);
+    }
+
+    // POST: Expediente/Desactivar/5
+    [HttpPost]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> Desactivar(long id)
+    {
+        var nino = await _context.Ninos.FindAsync(id);
+        if (nino != null)
+        {
+            nino.Activo = false;
+            nino.Estado = "INACTIVO";
+            nino.ActualizadoEn = DateTime.UtcNow;
+            await _context.SaveChangesAsync();
+        }
+        return RedirectToAction(nameof(Index));
+    }
+
+    private bool NinoExists(long id)
+    {
+        return _context.Ninos.Any(e => e.Id == id);
+    }
+
+    // AJAX Actions for Parents
+    [HttpGet]
+    public async Task<IActionResult> SearchPersonas(string term, string type = "ENCARGADO")
+    {
+        if (string.IsNullOrWhiteSpace(term)) return Json(new List<object>());
+
+        var personas = await PostgresQueryExecutor.ExecuteQueryAsync(
+            _context,
+            "SELECT id, text, score FROM buscar_personas_v2(@term, @type)",
+            reader => new
+            {
+                id = reader.GetInt64(0),
+                text = reader.GetString(1),
+                score = reader.GetDouble(2)
+            },
+            paramsColl => {
+                paramsColl.AddWithValue("term", term);
+                paramsColl.AddWithValue("type", type);
+            }
+        );
+
+        return Json(personas);
+    }
+
+    [HttpPost]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> CreatePersona([FromBody] Persona model)
+    {
+        if (ModelState.IsValid)
+        {
+            model.Activo = true;
+            model.CreadoEn = DateTime.UtcNow;
+            model.ActualizadoEn = DateTime.UtcNow;
+            
+            _context.Personas.Add(model);
+            await _context.SaveChangesAsync();
+            
+            return Json(new { success = true, id = model.Id, text = $"{model.Nombres} {model.Apellidos} ({model.Dui ?? "Sin DUI"})" });
+        }
+        
+        return Json(new { success = false, message = "Datos inválidos" });
+    }
+
+    private async Task<string> ProcessPhotoUpload(IFormFile file, string codigoExpediente)
+    {
+        if (file == null || file.Length == 0) return "/Assets/default_avatar.png";
+
+        var allowedExtensions = new[] { ".jpg", ".jpeg", ".png", ".gif", ".bmp" };
+        var fileExtension = Path.GetExtension(file.FileName).ToLowerInvariant();
+
+        if (!allowedExtensions.Contains(fileExtension)) return "/Assets/default_avatar.png";
+
+        var uploadsFolder = Path.Combine(_hostingEnvironment.WebRootPath, "uploads", "fotos");
+        if (!Directory.Exists(uploadsFolder))
+        {
+            Directory.CreateDirectory(uploadsFolder);
+        }
+
+        // Usar el código del expediente como nombre de archivo
+        var fileName = codigoExpediente + fileExtension;
+        var filePath = Path.Combine(uploadsFolder, fileName);
+
+        using (var stream = new FileStream(filePath, FileMode.Create))
+        {
+            await file.CopyToAsync(stream);
+        }
+
+        return $"/uploads/fotos/{fileName}";
+    }
+
+    public string ExisteFoto(string url)
+    {
+        if (string.IsNullOrEmpty(url))
+            return "/Assets/default_avatar.png";
+
+        var uploadsFolder = Path.Combine(_hostingEnvironment.WebRootPath, "uploads", "fotos");
+        string[] parts = url.Split('/');
+        string name = parts[^1];
+
+        string fullpath = Path.Combine(uploadsFolder, name);
+
+        if (System.IO.File.Exists(fullpath))
+            return url;
+
+        return "/Assets/default_avatar.png";
+    }
+}
diff --git a/foundation_system/Controllers/UsuarioController.cs b/foundation_system/Controllers/UsuarioController.cs
new file mode 100644
index 0000000..1a451d2
--- /dev/null
+++ b/foundation_system/Controllers/UsuarioController.cs
@@ -0,0 +1,191 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using foundation_system.Data;
+using foundation_system.Models;
+using foundation_system.Models.ViewModels;
+using BCrypt.Net;
+
+namespace foundation_system.Controllers;
+
+public class UsuarioController : Controller
+{
+    private readonly ApplicationDbContext _context;
+
+    public UsuarioController(ApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    // GET: Usuario
+    public async Task<IActionResult> Index()
+    {
+        var usuarios = await _context.Usuarios
+            .Include(u => u.Persona)
+            .ToListAsync();
+        return View(usuarios);
+    }
+
+    // GET: Usuario/Create
+    public IActionResult Create()
+    {
+        return View(new UsuarioViewModel());
+    }
+
+    // POST: Usuario/Create
+    [HttpPost]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> Create(UsuarioViewModel model)
+    {
+        if (string.IsNullOrEmpty(model.Contrasena))
+        {
+            ModelState.AddModelError("Contrasena", "La contraseña es requerida para nuevos usuarios");
+        }
+
+        if (ModelState.IsValid)
+        {
+            // Check if username or email already exists
+            if (await _context.Usuarios.AnyAsync(u => u.NombreUsuario == model.NombreUsuario))
+            {
+                ModelState.AddModelError("NombreUsuario", "El nombre de usuario ya está en uso");
+                return View(model);
+            }
+
+            if (await _context.Usuarios.AnyAsync(u => u.Email == model.Email))
+            {
+                ModelState.AddModelError("Email", "El correo electrónico ya está en uso");
+                return View(model);
+            }
+
+            using var transaction = await _context.Database.BeginTransactionAsync();
+            try
+            {
+                var persona = new Persona
+                {
+                    Nombres = model.Nombres,
+                    Apellidos = model.Apellidos,
+                    Email = model.Email,
+                    Telefono = model.Telefono,
+                    Activo = true
+                };
+
+                _context.Personas.Add(persona);
+                await _context.SaveChangesAsync();
+
+                var usuario = new Usuario
+                {
+                    PersonaId = persona.Id,
+                    NombreUsuario = model.NombreUsuario,
+                    Email = model.Email,
+                    HashContrasena = BCrypt.Net.BCrypt.HashPassword(model.Contrasena),
+                    Activo = true,
+                    CreadoEn = DateTime.UtcNow,
+                    ActualizadoEn = DateTime.UtcNow
+                };
+
+                _context.Usuarios.Add(usuario);
+                await _context.SaveChangesAsync();
+
+                await transaction.CommitAsync();
+                return RedirectToAction(nameof(Index));
+            }
+            catch (Exception)
+            {
+                await transaction.RollbackAsync();
+                ModelState.AddModelError("", "Ocurrió un error al crear el usuario.");
+            }
+        }
+        return View(model);
+    }
+
+    // GET: Usuario/Edit/5
+    public async Task<IActionResult> Edit(long? id)
+    {
+        if (id == null) return NotFound();
+
+        var usuario = await _context.Usuarios
+            .Include(u => u.Persona)
+            .FirstOrDefaultAsync(u => u.Id == id);
+
+        if (usuario == null) return NotFound();
+
+        var model = new UsuarioViewModel
+        {
+            Id = usuario.Id,
+            Nombres = usuario.Persona.Nombres,
+            Apellidos = usuario.Persona.Apellidos,
+            NombreUsuario = usuario.NombreUsuario,
+            Email = usuario.Email,
+            Telefono = usuario.Persona.Telefono,
+            Activo = usuario.Activo
+        };
+
+        return View(model);
+    }
+
+    // POST: Usuario/Edit/5
+    [HttpPost]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> Edit(long id, UsuarioViewModel model)
+    {
+        if (id != model.Id) return NotFound();
+
+        if (ModelState.IsValid)
+        {
+            var usuario = await _context.Usuarios
+                .Include(u => u.Persona)
+                .FirstOrDefaultAsync(u => u.Id == id);
+
+            if (usuario == null) return NotFound();
+
+            try
+            {
+                // Update Persona
+                usuario.Persona.Nombres = model.Nombres;
+                usuario.Persona.Apellidos = model.Apellidos;
+                usuario.Persona.Telefono = model.Telefono;
+                usuario.Persona.ActualizadoEn = DateTime.UtcNow;
+
+                // Update Usuario
+                usuario.NombreUsuario = model.NombreUsuario;
+                usuario.Email = model.Email;
+                usuario.Activo = model.Activo;
+                usuario.ActualizadoEn = DateTime.UtcNow;
+
+                // Update password if provided
+                if (!string.IsNullOrEmpty(model.Contrasena))
+                {
+                    usuario.HashContrasena = BCrypt.Net.BCrypt.HashPassword(model.Contrasena);
+                }
+
+                await _context.SaveChangesAsync();
+                return RedirectToAction(nameof(Index));
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!UsuarioExists(model.Id.Value)) return NotFound();
+                else throw;
+            }
+        }
+        return View(model);
+    }
+
+    // POST: Usuario/Desactivar/5
+    [HttpPost]
+    [ValidateAntiForgeryToken]
+    public async Task<IActionResult> Desactivar(long id)
+    {
+        var usuario = await _context.Usuarios.FindAsync(id);
+        if (usuario != null)
+        {
+            usuario.Activo = false;
+            usuario.ActualizadoEn = DateTime.UtcNow;
+            await _context.SaveChangesAsync();
+        }
+        return RedirectToAction(nameof(Index));
+    }
+
+    private bool UsuarioExists(long id)
+    {
+        return _context.Usuarios.Any(e => e.Id == id);
+    }
+}
diff --git a/foundation_system/Data/ApplicationDbContext.cs b/foundation_system/Data/ApplicationDbContext.cs
index ef510a0..2e9bbbe 100644
--- a/foundation_system/Data/ApplicationDbContext.cs
+++ b/foundation_system/Data/ApplicationDbContext.cs
@@ -18,6 +18,7 @@ public class ApplicationDbContext : DbContext
     public DbSet<Asistencia> Asistencias { get; set; }
     public DbSet<ConfiguracionSistema> Configuraciones { get; set; }
     public DbSet<EncargadoNino> EncargadosNino { get; set; }
+    public DbSet<AntecedenteNino> AntecedentesNino { get; set; }
     
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
@@ -42,5 +43,19 @@ public class ApplicationDbContext : DbContext
             .HasOne(u => u.Persona)
             .WithMany()
             .HasForeignKey(u => u.PersonaId);
+
+        // Global configuration: Convert all dates to UTC when saving
+        foreach (var entityType in modelBuilder.Model.GetEntityTypes())
+        {
+            var properties = entityType.GetProperties()
+                .Where(p => p.ClrType == typeof(DateTime) || p.ClrType == typeof(DateTime?));
+
+            foreach (var property in properties)
+            {
+                property.SetValueConverter(new Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter<DateTime, DateTime>(
+                    v => v.Kind == DateTimeKind.Utc ? v : DateTime.SpecifyKind(v, DateTimeKind.Utc),
+                    v => v));
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/foundation_system/Data/PostgresQueryExecutor.cs b/foundation_system/Data/PostgresQueryExecutor.cs
new file mode 100644
index 0000000..c4b1183
--- /dev/null
+++ b/foundation_system/Data/PostgresQueryExecutor.cs
@@ -0,0 +1,39 @@
+using System.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Storage;
+using Npgsql;
+
+namespace foundation_system.Data;
+
+public static class PostgresQueryExecutor
+{
+    public static async Task<List<T>> ExecuteQueryAsync<T>(
+        DbContext context,
+        string sql,
+        Func<NpgsqlDataReader, T> map,
+        Action<NpgsqlParameterCollection>? parameters = null
+    )
+    {
+        var conn = (NpgsqlConnection)context.Database.GetDbConnection();
+
+        if (conn.State != ConnectionState.Open)
+            await conn.OpenAsync();
+
+        await using var cmd = new NpgsqlCommand(sql, conn);
+
+        var currentTx = context.Database.CurrentTransaction;
+        if (currentTx != null)
+            cmd.Transaction = (NpgsqlTransaction)currentTx.GetDbTransaction();
+
+        parameters?.Invoke(cmd.Parameters);
+
+        var results = new List<T>();
+        await using var reader = await cmd.ExecuteReaderAsync();
+        while (await reader.ReadAsync())
+        {
+            results.Add(map(reader));
+        }
+
+        return results;
+    }
+}
diff --git a/foundation_system/Dockerfile b/foundation_system/Dockerfile
new file mode 100644
index 0000000..71ecf49
--- /dev/null
+++ b/foundation_system/Dockerfile
@@ -0,0 +1,27 @@
+# Runtime
+FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS base
+WORKDIR /app
+EXPOSE 8080
+EXPOSE 8081
+
+# Build
+FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
+ARG BUILD_CONFIGURATION=Release
+WORKDIR /src
+
+# Copiar TODO el proyecto
+COPY . .
+
+# Restaurar y compilar
+RUN dotnet restore "foundation_system.csproj"
+RUN dotnet build "foundation_system.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+# Publish
+FROM build AS publish
+RUN dotnet publish "foundation_system.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
+
+# Final
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "foundation_system.dll"]
diff --git a/foundation_system/Models/AntecedenteNino.cs b/foundation_system/Models/AntecedenteNino.cs
new file mode 100644
index 0000000..73518d4
--- /dev/null
+++ b/foundation_system/Models/AntecedenteNino.cs
@@ -0,0 +1,51 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace foundation_system.Models;
+
+[Table("antecedentes_nino")]
+public class AntecedenteNino
+{
+    [Key]
+    [Column("id")]
+    public long Id { get; set; }
+
+    [Required]
+    [Column("nino_id")]
+    public long NinoId { get; set; }
+
+    [ForeignKey("NinoId")]
+    public virtual Nino Nino { get; set; } = null!;
+
+    [Required]
+    [Column("fecha_incidente")]
+    public DateTime FechaIncidente { get; set; } = DateTime.UtcNow;
+
+    [Required]
+    [Column("tipo_antecedente")]
+    [StringLength(50)]
+    public string TipoAntecedente { get; set; } = string.Empty; // LlamadaAtencion, Suspension, Castigo
+
+    [Required]
+    [Column("descripcion")]
+    public string Descripcion { get; set; } = string.Empty;
+
+    [Required]
+    [Column("gravedad")]
+    [StringLength(20)]
+    public string Gravedad { get; set; } = string.Empty; // Alta, Media, Baja
+
+    [Required]
+    [Column("usuario_registra")]
+    [StringLength(100)]
+    public string UsuarioRegistra { get; set; } = string.Empty;
+
+    [Column("activo")]
+    public bool Activo { get; set; } = true;
+
+    [Column("creado_en")]
+    public DateTime CreadoEn { get; set; } = DateTime.UtcNow;
+
+    [Column("actualizado_en")]
+    public DateTime ActualizadoEn { get; set; } = DateTime.UtcNow;
+}
diff --git a/foundation_system/Models/Asistencia.cs b/foundation_system/Models/Asistencia.cs
new file mode 100644
index 0000000..a1a8f67
--- /dev/null
+++ b/foundation_system/Models/Asistencia.cs
@@ -0,0 +1,39 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace foundation_system.Models;
+
+[Table("asistencia")]
+public class Asistencia
+{
+    [Key]
+    [Column("id")]
+    public long Id { get; set; }
+    
+    [Column("nino_id")]
+    public long NinoId { get; set; }
+    
+    [Column("fecha")]
+    public DateOnly Fecha { get; set; } = DateOnly.FromDateTime(DateTime.Now);
+    
+    [Column("estado")]
+    [Required]
+    [StringLength(20)]
+    public string Estado { get; set; } = "PRESENTE";
+    
+    [Column("hora_entrada")]
+    public TimeOnly? HoraEntrada { get; set; }
+    
+    [Column("hora_salida")]
+    public TimeOnly? HoraSalida { get; set; }
+    
+    [Column("notas")]
+    public string? Notas { get; set; }
+    
+    [Column("creado_en")]
+    public DateTime CreadoEn { get; set; } = DateTime.UtcNow;
+    
+    // Navigation properties
+    [ForeignKey("NinoId")]
+    public Nino Nino { get; set; } = null!;
+}
diff --git a/foundation_system/Models/ConfiguracionSistema.cs b/foundation_system/Models/ConfiguracionSistema.cs
new file mode 100644
index 0000000..55d1348
--- /dev/null
+++ b/foundation_system/Models/ConfiguracionSistema.cs
@@ -0,0 +1,57 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace foundation_system.Models;
+
+[Table("configuracion_sistema")]
+public class ConfiguracionSistema
+{
+    [Key]
+    [Column("id")]
+    public int Id { get; set; }
+
+    [Required]
+    [Column("clave")]
+    [StringLength(100)]
+    public string Clave { get; set; } = string.Empty;
+
+    [Column("valor")]
+    public string? Valor { get; set; }
+
+    [Column("tipo_dato")]
+    [StringLength(20)]
+    public string TipoDato { get; set; } = "TEXTO";
+
+    [Column("categoria")]
+    [StringLength(50)]
+    public string Categoria { get; set; } = "GENERAL";
+
+    [Column("grupo")]
+    [StringLength(50)]
+    public string Grupo { get; set; } = "SISTEMA";
+
+    [Column("descripcion")]
+    public string? Descripcion { get; set; }
+
+    [Column("es_editable")]
+    public bool EsEditable { get; set; } = true;
+
+    [Column("es_publico")]
+    public bool EsPublico { get; set; } = false;
+
+    [Column("orden")]
+    public int Orden { get; set; } = 0;
+
+    [Column("opciones", TypeName = "jsonb")]
+    public string? Opciones { get; set; }
+
+    [Column("validacion_regex")]
+    [StringLength(200)]
+    public string? ValidacionRegex { get; set; }
+
+    [Column("creado_en")]
+    public DateTime CreadoEn { get; set; } = DateTime.UtcNow;
+
+    [Column("actualizado_en")]
+    public DateTime ActualizadoEn { get; set; } = DateTime.UtcNow;
+}
diff --git a/foundation_system/Models/EncargadoNino.cs b/foundation_system/Models/EncargadoNino.cs
new file mode 100644
index 0000000..ea1332c
--- /dev/null
+++ b/foundation_system/Models/EncargadoNino.cs
@@ -0,0 +1,39 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace foundation_system.Models;
+
+[Table("encargados_nino")]
+public class EncargadoNino
+{
+    [Key]
+    [Column("id")]
+    public long Id { get; set; }
+
+    [Column("nino_id")]
+    public long NinoId { get; set; }
+
+    [Column("persona_id")]
+    public long PersonaId { get; set; }
+
+    [Column("parentesco")]
+    [Required]
+    [StringLength(50)]
+    public string Parentesco { get; set; } = "PADRE";
+
+    [Column("es_principal")]
+    public bool EsPrincipal { get; set; } = false;
+
+    [Column("puede_recoger")]
+    public bool PuedeRecoger { get; set; } = true;
+
+    [Column("creado_en")]
+    public DateTime CreadoEn { get; set; } = DateTime.UtcNow;
+
+    // Navigation properties
+    [ForeignKey("NinoId")]
+    public Nino Nino { get; set; } = null!;
+
+    [ForeignKey("PersonaId")]
+    public Persona Persona { get; set; } = null!;
+}
diff --git a/foundation_system/Models/Nino.cs b/foundation_system/Models/Nino.cs
new file mode 100644
index 0000000..7f0cccf
--- /dev/null
+++ b/foundation_system/Models/Nino.cs
@@ -0,0 +1,55 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace foundation_system.Models;
+
+[Table("ninos")]
+public class Nino
+{
+    [Key]
+    [Column("id")]
+    public long Id { get; set; }
+    
+    [Column("persona_id")]
+    public long PersonaId { get; set; }
+    
+    [Column("fecha_inscripcion")]
+    public DateOnly FechaInscripcion { get; set; } = DateOnly.FromDateTime(DateTime.Now);
+    
+    [Column("codigo_inscripcion")]
+    [Required]
+    [StringLength(20)]
+    public string CodigoInscripcion { get; set; } = string.Empty;
+    
+    [Column("estado")]
+    [StringLength(20)]
+    public string Estado { get; set; } = "ACTIVO";
+    
+    [Column("nivel_grado")]
+    [StringLength(20)]
+    public string? NivelGrado { get; set; }
+    
+    [Column("alergias")]
+    public string? Alergias { get; set; }
+    
+    [Column("contacto_emergencia_nombre")]
+    [StringLength(100)]
+    public string? ContactoEmergenciaNombre { get; set; }
+    
+    [Column("contacto_emergencia_telefono")]
+    [StringLength(20)]
+    public string? ContactoEmergenciaTelefono { get; set; }
+    
+    [Column("activo")]
+    public bool Activo { get; set; } = true;
+    
+    [Column("creado_en")]
+    public DateTime CreadoEn { get; set; } = DateTime.UtcNow;
+    
+    [Column("actualizado_en")]
+    public DateTime ActualizadoEn { get; set; } = DateTime.UtcNow;
+    
+    // Navigation properties
+    [ForeignKey("PersonaId")]
+    public Persona Persona { get; set; } = null!;
+}
diff --git a/foundation_system/Models/Persona.cs b/foundation_system/Models/Persona.cs
new file mode 100644
index 0000000..3b0e2c5
--- /dev/null
+++ b/foundation_system/Models/Persona.cs
@@ -0,0 +1,64 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace foundation_system.Models;
+
+[Table("personas")]
+public class Persona
+{
+    [Key]
+    [Column("id")]
+    public long Id { get; set; }
+    
+    [Column("nombres")]
+    [Required]
+    [StringLength(100)]
+    public string Nombres { get; set; } = string.Empty;
+    
+    [Column("apellidos")]
+    [Required]
+    [StringLength(100)]
+    public string Apellidos { get; set; } = string.Empty;
+    
+    [Column("dui")]
+    [StringLength(12)]
+    public string? Dui { get; set; }
+    
+    [Column("nit")]
+    [StringLength(17)]
+    public string? Nit { get; set; }
+    
+    [Column("fecha_nacimiento")]
+    public DateOnly? FechaNacimiento { get; set; }
+    
+    [Column("genero")]
+    [StringLength(1)]
+    public string? Genero { get; set; }
+    
+    [Column("email")]
+    [StringLength(255)]
+    public string? Email { get; set; }
+    
+    [Column("telefono")]
+    [StringLength(20)]
+    public string? Telefono { get; set; }
+    
+    [Column("direccion")]
+    public string? Direccion { get; set; }
+    
+    [Column("foto_url")]
+    public string? FotoUrl { get; set; }
+    
+    [Column("activo")]
+    public bool Activo { get; set; } = true;
+    
+    [Column("creado_en")]
+    public DateTime CreadoEn { get; set; } = DateTime.UtcNow;
+    
+    [Column("actualizado_en")]
+    public DateTime ActualizadoEn { get; set; } = DateTime.UtcNow;
+    
+    // Nombre completo
+    [NotMapped]
+    public string NombreCompleto => $"{Nombres} {Apellidos}";
+}
diff --git a/foundation_system/Models/RolSistema.cs b/foundation_system/Models/RolSistema.cs
new file mode 100644
index 0000000..f8ba9c8
--- /dev/null
+++ b/foundation_system/Models/RolSistema.cs
@@ -0,0 +1,30 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace foundation_system.Models;
+
+[Table("roles_sistema")]
+public class RolSistema
+{
+    [Key]
+    [Column("id")]
+    public int Id { get; set; }
+    
+    [Column("codigo")]
+    [Required]
+    [StringLength(50)]
+    public string Codigo { get; set; } = string.Empty;
+    
+    [Column("nombre")]
+    [Required]
+    [StringLength(100)]
+    public string Nombre { get; set; } = string.Empty;
+    
+    [Column("descripcion")]
+    public string? Descripcion { get; set; }
+    
+    [Column("creado_en")]
+    public DateTime CreadoEn { get; set; } = DateTime.UtcNow;
+    
+    public ICollection<RolUsuario> RolesUsuario { get; set; } = new List<RolUsuario>();
+}
diff --git a/foundation_system/Models/RolUsuario.cs b/foundation_system/Models/RolUsuario.cs
new file mode 100644
index 0000000..9735a3b
--- /dev/null
+++ b/foundation_system/Models/RolUsuario.cs
@@ -0,0 +1,24 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace foundation_system.Models;
+
+[Table("roles_usuario")]
+public class RolUsuario
+{
+    [Column("usuario_id")]
+    public long UsuarioId { get; set; }
+    
+    [Column("rol_id")]
+    public int RolId { get; set; }
+    
+    [Column("asignado_en")]
+    public DateTime AsignadoEn { get; set; } = DateTime.UtcNow;
+    
+    // Navigation properties
+    [ForeignKey("UsuarioId")]
+    public Usuario Usuario { get; set; } = null!;
+    
+    [ForeignKey("RolId")]
+    public RolSistema Rol { get; set; } = null!;
+}
diff --git a/foundation_system/Models/Usuario.cs b/foundation_system/Models/Usuario.cs
new file mode 100644
index 0000000..0953b69
--- /dev/null
+++ b/foundation_system/Models/Usuario.cs
@@ -0,0 +1,47 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace foundation_system.Models;
+
+[Table("usuarios")]
+public class Usuario
+{
+    [Key]
+    [Column("id")]
+    public long Id { get; set; }
+    
+    [Column("persona_id")]
+    public long? PersonaId { get; set; }
+    
+    [Column("nombre_usuario")]
+    [Required]
+    [StringLength(50)]
+    public string NombreUsuario { get; set; } = string.Empty;
+    
+    [Column("email")]
+    [Required]
+    [StringLength(255)]
+    public string Email { get; set; } = string.Empty;
+    
+    [Column("hash_contrasena")]
+    [Required]
+    public string HashContrasena { get; set; } = string.Empty;
+    
+    [Column("activo")]
+    public bool Activo { get; set; } = true;
+    
+    [Column("ultimo_login")]
+    public DateTime? UltimoLogin { get; set; }
+    
+    [Column("creado_en")]
+    public DateTime CreadoEn { get; set; } = DateTime.UtcNow;
+    
+    [Column("actualizado_en")]
+    public DateTime ActualizadoEn { get; set; } = DateTime.UtcNow;
+    
+    // Navigation properties
+    [ForeignKey("PersonaId")]
+    public Persona? Persona { get; set; }
+    
+    public ICollection<RolUsuario> RolesUsuario { get; set; } = new List<RolUsuario>();
+}
diff --git a/foundation_system/Models/ViewModels/AntecedentesViewModel.cs b/foundation_system/Models/ViewModels/AntecedentesViewModel.cs
new file mode 100644
index 0000000..c06b122
--- /dev/null
+++ b/foundation_system/Models/ViewModels/AntecedentesViewModel.cs
@@ -0,0 +1,31 @@
+using System.ComponentModel.DataAnnotations;
+using foundation_system.Models;
+using Microsoft.AspNetCore.Mvc.ModelBinding.Validation;
+
+namespace foundation_system.Models.ViewModels;
+
+public class AntecedentesViewModel
+{
+    [ValidateNever]
+    public Nino? Nino { get; set; }
+    
+    [ValidateNever]
+    public List<AntecedenteNino> Historial { get; set; } = new();
+    
+    // Form fields for new record
+    [Required(ErrorMessage = "La fecha es requerida")]
+    [Display(Name = "Fecha del Incidente")]
+    public DateTime FechaIncidente { get; set; } = DateTime.UtcNow;
+
+    [Required(ErrorMessage = "El tipo de antecedente es requerido")]
+    [Display(Name = "Tipo de Antecedente")]
+    public string TipoAntecedente { get; set; } = string.Empty;
+
+    [Required(ErrorMessage = "La descripción es requerida")]
+    [Display(Name = "Descripción")]
+    public string Descripcion { get; set; } = string.Empty;
+
+    [Required(ErrorMessage = "La gravedad es requerida")]
+    [Display(Name = "Gravedad")]
+    public string Gravedad { get; set; } = string.Empty;
+}
diff --git a/foundation_system/Models/ViewModels/AsistenciaGridViewModel.cs b/foundation_system/Models/ViewModels/AsistenciaGridViewModel.cs
new file mode 100644
index 0000000..200b610
--- /dev/null
+++ b/foundation_system/Models/ViewModels/AsistenciaGridViewModel.cs
@@ -0,0 +1,14 @@
+using foundation_system.Models;
+
+namespace foundation_system.Models.ViewModels;
+
+public class AsistenciaGridViewModel
+{
+    public int Año { get; set; }
+    public int Mes { get; set; }
+    public string NombreMes { get; set; } = string.Empty;
+    public string DiasSemanaSeleccionados { get; set; } = string.Empty;
+    public List<DateTime> DiasDelMes { get; set; } = new();
+    public List<Nino> Expedientes { get; set; } = new();
+    public Dictionary<string, string> Asistencias { get; set; } = new(); // Key: "ninoId_yyyy-MM-dd", Value: "P", "T", "F"
+}
diff --git a/foundation_system/Models/ViewModels/ExpedienteViewModel.cs b/foundation_system/Models/ViewModels/ExpedienteViewModel.cs
new file mode 100644
index 0000000..a674a39
--- /dev/null
+++ b/foundation_system/Models/ViewModels/ExpedienteViewModel.cs
@@ -0,0 +1,89 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace foundation_system.Models.ViewModels;
+
+public class ExpedienteViewModel
+{
+    public long? Id { get; set; } // Nino Id
+
+    // Persona Data
+    [Required(ErrorMessage = "Los nombres son requeridos")]
+    [Display(Name = "Nombres")]
+    public string Nombres { get; set; } = string.Empty;
+
+    [Required(ErrorMessage = "Los apellidos son requeridos")]
+    [Display(Name = "Apellidos")]
+    public string Apellidos { get; set; } = string.Empty;
+
+    [Display(Name = "DUI")]
+    [StringLength(12)]
+    public string? Dui { get; set; }
+
+    [Display(Name = "NIT")]
+    [StringLength(17)]
+    public string? Nit { get; set; }
+
+    [Required(ErrorMessage = "La fecha de nacimiento es requerida")]
+    [Display(Name = "Fecha de Nacimiento")]
+    [DataType(DataType.Date)]
+    public DateOnly? FechaNacimiento { get; set; }
+
+    [Required(ErrorMessage = "El género es requerido")]
+    [Display(Name = "Género")]
+    public string? Genero { get; set; }
+
+    [EmailAddress(ErrorMessage = "Correo electrónico inválido")]
+    public string? Email { get; set; }
+
+    [Display(Name = "Teléfono")]
+    public string? Telefono { get; set; }
+
+    [Display(Name = "Foto")]
+    public string? FotoUrl { get; set; }
+
+    [Display(Name = "Archivo de Foto")]
+    public IFormFile? FotoFile { get; set; }
+
+    [Required(ErrorMessage = "La dirección es requerida")]
+    [Display(Name = "Dirección")]
+    public string? Direccion { get; set; }
+
+    // Nino Data
+    [Display(Name = "Código de Inscripción")]
+    public string? CodigoInscripcion { get; set; }
+
+    [Required(ErrorMessage = "La fecha de inscripción es requerida")]
+    [Display(Name = "Fecha de Inscripción")]
+    [DataType(DataType.Date)]
+    public DateOnly FechaInscripcion { get; set; } = DateOnly.FromDateTime(DateTime.Now);
+
+    [Required(ErrorMessage = "El estado es requerido")]
+    [Display(Name = "Estado")]
+    public string Estado { get; set; } = "ACTIVO";
+
+    [Required(ErrorMessage = "El nivel/grado es requerido")]
+    [Display(Name = "Nivel/Grado")]
+    public string? NivelGrado { get; set; }
+
+    [Display(Name = "Alergias")]
+    public string? Alergias { get; set; }
+
+    [Display(Name = "Contacto de Emergencia")]
+    public string? ContactoEmergenciaNombre { get; set; }
+
+    [Display(Name = "Teléfono de Emergencia")]
+    public string? ContactoEmergenciaTelefono { get; set; }
+
+    // Parents
+    [Required(ErrorMessage = "El padre es requerido")]
+    public long? PadreId { get; set; }
+    public string? PadreNombre { get; set; }
+    
+    [Required(ErrorMessage = "La madre es requerida")]
+    public long? MadreId { get; set; }
+    public string? MadreNombre { get; set; }
+
+    [Required(ErrorMessage = "El encargado es requerido")]
+    public long? EncargadoId { get; set; }
+    public string? EncargadoNombre { get; set; }
+}
diff --git a/foundation_system/Models/ViewModels/LoginViewModel.cs b/foundation_system/Models/ViewModels/LoginViewModel.cs
new file mode 100644
index 0000000..97182ee
--- /dev/null
+++ b/foundation_system/Models/ViewModels/LoginViewModel.cs
@@ -0,0 +1,18 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace foundation_system.Models.ViewModels;
+
+public class LoginViewModel
+{
+    [Required(ErrorMessage = "El nombre de usuario es requerido")]
+    [Display(Name = "Usuario")]
+    public string NombreUsuario { get; set; } = string.Empty;
+    
+    [Required(ErrorMessage = "La contraseña es requerida")]
+    [DataType(DataType.Password)]
+    [Display(Name = "Contraseña")]
+    public string Contrasena { get; set; } = string.Empty;
+    
+    [Display(Name = "Recordarme")]
+    public bool RecordarMe { get; set; }
+}
diff --git a/foundation_system/Models/ViewModels/RegisterViewModel.cs b/foundation_system/Models/ViewModels/RegisterViewModel.cs
new file mode 100644
index 0000000..fc4e447
--- /dev/null
+++ b/foundation_system/Models/ViewModels/RegisterViewModel.cs
@@ -0,0 +1,39 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace foundation_system.Models.ViewModels;
+
+public class RegisterViewModel
+{
+    [Required(ErrorMessage = "Los nombres son requeridos")]
+    [StringLength(100, ErrorMessage = "Máximo 100 caracteres")]
+    [Display(Name = "Nombres")]
+    public string Nombres { get; set; } = string.Empty;
+    
+    [Required(ErrorMessage = "Los apellidos son requeridos")]
+    [StringLength(100, ErrorMessage = "Máximo 100 caracteres")]
+    [Display(Name = "Apellidos")]
+    public string Apellidos { get; set; } = string.Empty;
+    
+    [Required(ErrorMessage = "El nombre de usuario es requerido")]
+    [StringLength(50, MinimumLength = 3, ErrorMessage = "El usuario debe tener entre 3 y 50 caracteres")]
+    [RegularExpression(@"^[a-zA-Z0-9_]+$", ErrorMessage = "Solo letras, números y guiones bajos")]
+    [Display(Name = "Nombre de Usuario")]
+    public string NombreUsuario { get; set; } = string.Empty;
+    
+    [Required(ErrorMessage = "El correo electrónico es requerido")]
+    [EmailAddress(ErrorMessage = "Correo electrónico inválido")]
+    [Display(Name = "Correo Electrónico")]
+    public string Email { get; set; } = string.Empty;
+    
+    [Required(ErrorMessage = "La contraseña es requerida")]
+    [StringLength(100, MinimumLength = 6, ErrorMessage = "La contraseña debe tener al menos 6 caracteres")]
+    [DataType(DataType.Password)]
+    [Display(Name = "Contraseña")]
+    public string Contrasena { get; set; } = string.Empty;
+    
+    [Required(ErrorMessage = "Debe confirmar la contraseña")]
+    [Compare("Contrasena", ErrorMessage = "Las contraseñas no coinciden")]
+    [DataType(DataType.Password)]
+    [Display(Name = "Confirmar Contraseña")]
+    public string ConfirmarContrasena { get; set; } = string.Empty;
+}
diff --git a/foundation_system/Models/ViewModels/UsuarioViewModel.cs b/foundation_system/Models/ViewModels/UsuarioViewModel.cs
new file mode 100644
index 0000000..8e402a9
--- /dev/null
+++ b/foundation_system/Models/ViewModels/UsuarioViewModel.cs
@@ -0,0 +1,42 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace foundation_system.Models.ViewModels;
+
+public class UsuarioViewModel
+{
+    public long? Id { get; set; }
+
+    [Required(ErrorMessage = "Los nombres son requeridos")]
+    [Display(Name = "Nombres")]
+    public string Nombres { get; set; } = string.Empty;
+
+    [Required(ErrorMessage = "Los apellidos son requeridos")]
+    [Display(Name = "Apellidos")]
+    public string Apellidos { get; set; } = string.Empty;
+
+    [Required(ErrorMessage = "El nombre de usuario es requerido")]
+    [Display(Name = "Nombre de Usuario")]
+    [StringLength(50)]
+    public string NombreUsuario { get; set; } = string.Empty;
+
+    [Required(ErrorMessage = "El correo electrónico es requerido")]
+    [EmailAddress(ErrorMessage = "Correo electrónico inválido")]
+    [Display(Name = "Email")]
+    public string Email { get; set; } = string.Empty;
+
+    [Display(Name = "Contraseña")]
+    [DataType(DataType.Password)]
+    [StringLength(100, MinimumLength = 6, ErrorMessage = "La contraseña debe tener al menos 6 caracteres")]
+    public string? Contrasena { get; set; }
+
+    [Display(Name = "Confirmar Contraseña")]
+    [DataType(DataType.Password)]
+    [Compare("Contrasena", ErrorMessage = "Las contraseñas no coinciden")]
+    public string? ConfirmarContrasena { get; set; }
+
+    [Display(Name = "Estado")]
+    public bool Activo { get; set; } = true;
+
+    [Display(Name = "Teléfono")]
+    public string? Telefono { get; set; }
+}
diff --git a/foundation_system/Program.cs b/foundation_system/Program.cs
index 0a22a80..ddf9e8b 100644
--- a/foundation_system/Program.cs
+++ b/foundation_system/Program.cs
@@ -14,8 +14,9 @@ builder.Services.AddDbContext<ApplicationDbContext>(options =>
 
 builder.Services.AddDatabaseDeveloperPageExceptionFilter();
 
-// Register authentication service
+// Register services
 builder.Services.AddScoped<IAuthService, AuthService>();
+builder.Services.AddScoped<IAntecedentesService, AntecedentesService>();
 
 // Configure cookie authentication
 builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
diff --git a/foundation_system/Services/AntecedentesService.cs b/foundation_system/Services/AntecedentesService.cs
new file mode 100644
index 0000000..4bb2969
--- /dev/null
+++ b/foundation_system/Services/AntecedentesService.cs
@@ -0,0 +1,37 @@
+using foundation_system.Data;
+using foundation_system.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace foundation_system.Services;
+
+public class AntecedentesService : IAntecedentesService
+{
+    private readonly ApplicationDbContext _context;
+
+    public AntecedentesService(ApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<List<AntecedenteNino>> GetHistorialByNinoIdAsync(long ninoId)
+    {
+        return await _context.AntecedentesNino
+            .Where(a => a.NinoId == ninoId && a.Activo)
+            .OrderByDescending(a => a.FechaIncidente)
+            .ToListAsync();
+    }
+
+    public async Task<bool> AddAntecedenteAsync(AntecedenteNino antecedente)
+    {
+        try
+        {
+            _context.AntecedentesNino.Add(antecedente);
+            await _context.SaveChangesAsync();
+            return true;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+}
diff --git a/foundation_system/Services/AuthService.cs b/foundation_system/Services/AuthService.cs
new file mode 100644
index 0000000..678fee9
--- /dev/null
+++ b/foundation_system/Services/AuthService.cs
@@ -0,0 +1,148 @@
+using Microsoft.EntityFrameworkCore;
+using foundation_system.Data;
+using foundation_system.Models;
+using foundation_system.Models.ViewModels;
+using BC = BCrypt.Net.BCrypt;
+
+namespace foundation_system.Services;
+
+public class AuthService : IAuthService
+{
+    private readonly ApplicationDbContext _context;
+    private readonly ILogger<AuthService> _logger;
+    
+    public AuthService(ApplicationDbContext context, ILogger<AuthService> logger)
+    {
+        _context = context;
+        _logger = logger;
+    }
+    
+    public async Task<Usuario?> ValidateUserAsync(string username, string password)
+    {
+        var usuario = await _context.Usuarios
+            .Include(u => u.Persona)
+            .Include(u => u.RolesUsuario)
+                .ThenInclude(ru => ru.Rol)
+            .FirstOrDefaultAsync(u => u.NombreUsuario == username && u.Activo);
+        
+        if (usuario == null)
+        {
+            _logger.LogWarning("Login attempt for non-existent user: {Username}", username);
+            return null;
+        }
+        
+        // Verify password using BCrypt
+        try
+        {
+            if (!BC.Verify(password, usuario.HashContrasena))
+            {
+                _logger.LogWarning("Invalid password for user: {Username}", username);
+                return null;
+            }
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error verifying password for user: {Username}", username);
+            return null;
+        }
+        
+        _logger.LogInformation("User {Username} logged in successfully", username);
+        return usuario;
+    }
+    
+    public async Task<(bool Success, string Message, Usuario? User)> RegisterUserAsync(RegisterViewModel model)
+    {
+        // Check if username already exists
+        if (await _context.Usuarios.AnyAsync(u => u.NombreUsuario == model.NombreUsuario))
+        {
+            return (false, "El nombre de usuario ya existe", null);
+        }
+        
+        // Check if email already exists
+        if (await _context.Usuarios.AnyAsync(u => u.Email == model.Email))
+        {
+            return (false, "El correo electrónico ya está registrado", null);
+        }
+        
+        using var transaction = await _context.Database.BeginTransactionAsync();
+        
+        try
+        {
+            // Create persona first
+            var persona = new Persona
+            {
+                Nombres = model.Nombres,
+                Apellidos = model.Apellidos,
+                Email = model.Email,
+                Activo = true,
+                CreadoEn = DateTime.UtcNow,
+                ActualizadoEn = DateTime.UtcNow
+            };
+            
+            _context.Personas.Add(persona);
+            await _context.SaveChangesAsync();
+            
+            // Create user with hashed password
+            var usuario = new Usuario
+            {
+                PersonaId = persona.Id,
+                NombreUsuario = model.NombreUsuario,
+                Email = model.Email,
+                HashContrasena = BC.HashPassword(model.Contrasena),
+                Activo = true,
+                CreadoEn = DateTime.UtcNow,
+                ActualizadoEn = DateTime.UtcNow
+            };
+            
+            _context.Usuarios.Add(usuario);
+            await _context.SaveChangesAsync();
+            
+            // Assign default role (LECTOR - reader)
+            var defaultRole = await _context.RolesSistema
+                .FirstOrDefaultAsync(r => r.Codigo == "LECTOR");
+            
+            if (defaultRole != null)
+            {
+                var rolUsuario = new RolUsuario
+                {
+                    UsuarioId = usuario.Id,
+                    RolId = defaultRole.Id,
+                    AsignadoEn = DateTime.UtcNow
+                };
+                
+                _context.RolesUsuario.Add(rolUsuario);
+                await _context.SaveChangesAsync();
+            }
+            
+            await transaction.CommitAsync();
+            
+            _logger.LogInformation("New user registered: {Username}", model.NombreUsuario);
+            return (true, "Usuario registrado exitosamente", usuario);
+        }
+        catch (Exception ex)
+        {
+            await transaction.RollbackAsync();
+            _logger.LogError(ex, "Error registering user: {Username}", model.NombreUsuario);
+            return (false, "Error al registrar el usuario", null);
+        }
+    }
+    
+    public async Task<List<string>> GetUserRolesAsync(long userId)
+    {
+        return await _context.RolesUsuario
+            .Where(ru => ru.UsuarioId == userId)
+            .Include(ru => ru.Rol)
+            .Select(ru => ru.Rol.Codigo)
+            .ToListAsync();
+    }
+    
+    public async Task UpdateLastLoginAsync(long userId)
+    {
+        var usuario = await _context.Usuarios.FindAsync(userId);
+        if (usuario != null)
+        {
+            usuario.UltimoLogin = DateTime.UtcNow;
+            await _context.SaveChangesAsync();
+        }
+    }
+}
diff --git a/foundation_system/Services/IAntecedentesService.cs b/foundation_system/Services/IAntecedentesService.cs
new file mode 100644
index 0000000..36f2f1e
--- /dev/null
+++ b/foundation_system/Services/IAntecedentesService.cs
@@ -0,0 +1,9 @@
+using foundation_system.Models;
+
+namespace foundation_system.Services;
+
+public interface IAntecedentesService
+{
+    Task<List<AntecedenteNino>> GetHistorialByNinoIdAsync(long ninoId);
+    Task<bool> AddAntecedenteAsync(AntecedenteNino antecedente);
+}
diff --git a/foundation_system/Services/IAuthService.cs b/foundation_system/Services/IAuthService.cs
new file mode 100644
index 0000000..153af78
--- /dev/null
+++ b/foundation_system/Services/IAuthService.cs
@@ -0,0 +1,27 @@
+using foundation_system.Models;
+using foundation_system.Models.ViewModels;
+
+namespace foundation_system.Services;
+
+public interface IAuthService
+{
+    /// <summary>
+    /// Validates user credentials and returns the user if valid
+    /// </summary>
+    Task<Usuario?> ValidateUserAsync(string username, string password);
+    
+    /// <summary>
+    /// Registers a new user
+    /// </summary>
+    Task<(bool Success, string Message, Usuario? User)> RegisterUserAsync(RegisterViewModel model);
+    
+    /// <summary>
+    /// Gets the roles for a user
+    /// </summary>
+    Task<List<string>> GetUserRolesAsync(long userId);
+    
+    /// <summary>
+    /// Updates the last login timestamp
+    /// </summary>
+    Task UpdateLastLoginAsync(long userId);
+}
diff --git a/foundation_system/Views/Account/AccessDenied.cshtml b/foundation_system/Views/Account/AccessDenied.cshtml
new file mode 100644
index 0000000..316da46
--- /dev/null
+++ b/foundation_system/Views/Account/AccessDenied.cshtml
@@ -0,0 +1,18 @@
+@{
+    ViewData["Title"] = "Acceso Denegado";
+}
+
+<div class="container text-center py-5">
+    <div class="row justify-content-center">
+        <div class="col-md-6">
+            <h1 class="display-1 fw-bold text-danger">403</h1>
+            <h2 class="mb-4">Acceso Denegado</h2>
+            <p class="text-muted mb-4">
+                No tienes permisos para acceder a esta página.
+            </p>
+            <a asp-controller="Home" asp-action="Index" class="btn btn-primary">
+                Volver al Inicio
+            </a>
+        </div>
+    </div>
+</div>
diff --git a/foundation_system/Views/Account/Login.cshtml b/foundation_system/Views/Account/Login.cshtml
new file mode 100644
index 0000000..c0a5915
--- /dev/null
+++ b/foundation_system/Views/Account/Login.cshtml
@@ -0,0 +1,108 @@
+@model foundation_system.Models.ViewModels.LoginViewModel
+@{
+    ViewData["Title"] = "Iniciar Sesión";
+    Layout = null;
+}
+
+<!DOCTYPE html>
+<html lang="es">
+<head>
+    <meta charset="utf-8"/>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
+    <title>@ViewData["Title"] - MIES</title>
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" rel="stylesheet">
+    <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css"/>
+    <link rel="stylesheet" href="~/css/auth.css" asp-append-version="true"/>
+</head>
+<body>
+    <div class="auth-container">
+        <div class="auth-background">
+            <div class="auth-gradient"></div>
+            <div class="auth-pattern"></div>
+        </div>
+        
+        <div class="auth-card animate-fade-in">
+            <div class="auth-header">
+                <div class="auth-logo">
+                    <div class="logo-icon">
+                        <svg viewBox="0 0 100 100" fill="none" xmlns="http://www.w3.org/2000/svg">
+                            <circle cx="50" cy="50" r="45" stroke="currentColor" stroke-width="4"/>
+                            <path d="M30 55 L50 35 L70 55" stroke="currentColor" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/>
+                            <path d="M40 65 L50 55 L60 65" stroke="currentColor" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/>
+                        </svg>
+                    </div>
+                </div>
+                <h1 class="auth-title">MIES</h1>
+                <p class="auth-subtitle">Misión Esperanza</p>
+            </div>
+            
+            @if (TempData["SuccessMessage"] != null)
+            {
+                <div class="alert alert-success alert-dismissible fade show" role="alert">
+                    <i class="bi bi-check-circle-fill me-2"></i>
+                    @TempData["SuccessMessage"]
+                    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+                </div>
+            }
+            
+            <form asp-action="Login" method="post" class="auth-form">
+                <div asp-validation-summary="ModelOnly" class="alert alert-danger mb-3"></div>
+                
+                <div class="form-floating mb-3">
+                    <input asp-for="NombreUsuario" class="form-control" id="username" placeholder="Usuario" autofocus autocomplete="username"/>
+                    <label for="username">
+                        <svg class="input-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                            <path d="M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2"/>
+                            <circle cx="12" cy="7" r="4"/>
+                        </svg>
+                        Usuario
+                    </label>
+                    <span asp-validation-for="NombreUsuario" class="text-danger small"></span>
+                </div>
+                
+                <div class="form-floating mb-3">
+                    <input asp-for="Contrasena" class="form-control" id="password" placeholder="Contraseña" autocomplete="current-password"/>
+                    <label for="password">
+                        <svg class="input-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                            <rect x="3" y="11" width="18" height="11" rx="2" ry="2"/>
+                            <path d="M7 11V7a5 5 0 0 1 10 0v4"/>
+                        </svg>
+                        Contraseña
+                    </label>
+                    <span asp-validation-for="Contrasena" class="text-danger small"></span>
+                </div>
+                
+                <div class="form-check mb-4">
+                    <input asp-for="RecordarMe" class="form-check-input" id="rememberMe"/>
+                    <label class="form-check-label" for="rememberMe">
+                        Recordarme
+                    </label>
+                </div>
+                
+                <button type="submit" class="btn btn-primary btn-auth">
+                    <span>Iniciar Sesión</span>
+                    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                        <path d="M5 12h14M12 5l7 7-7 7"/>
+                    </svg>
+                </button>
+            </form>
+            
+            <div class="auth-footer">
+                <p>¿No tienes una cuenta?</p>
+                <a asp-action="Register" class="auth-link">Crear cuenta</a>
+            </div>
+            
+            <div class="auth-branding">
+                <span>Sistema de Gestión</span>
+                <span class="separator">•</span>
+                <span>Fundación MIES</span>
+            </div>
+        </div>
+    </div>
+    
+    <script src="~/lib/jquery/dist/jquery.min.js"></script>
+    <script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
+    <script src="~/lib/jquery-validation/dist/jquery.validate.min.js"></script>
+    <script src="~/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.min.js"></script>
+</body>
+</html>
diff --git a/foundation_system/Views/Account/Register.cshtml b/foundation_system/Views/Account/Register.cshtml
new file mode 100644
index 0000000..4ee0ff5
--- /dev/null
+++ b/foundation_system/Views/Account/Register.cshtml
@@ -0,0 +1,140 @@
+@model foundation_system.Models.ViewModels.RegisterViewModel
+@{
+    ViewData["Title"] = "Crear Cuenta";
+    Layout = null;
+}
+
+<!DOCTYPE html>
+<html lang="es">
+<head>
+    <meta charset="utf-8"/>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
+    <title>@ViewData["Title"] - MIES</title>
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" rel="stylesheet">
+    <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css"/>
+    <link rel="stylesheet" href="~/css/auth.css" asp-append-version="true"/>
+</head>
+<body>
+    <div class="auth-container">
+        <div class="auth-background">
+            <div class="auth-gradient"></div>
+            <div class="auth-pattern"></div>
+        </div>
+        
+        <div class="auth-card auth-card-register animate-fade-in">
+            <div class="auth-header">
+                <div class="auth-logo">
+                    <div class="logo-icon">
+                        <svg viewBox="0 0 100 100" fill="none" xmlns="http://www.w3.org/2000/svg">
+                            <circle cx="50" cy="50" r="45" stroke="currentColor" stroke-width="4"/>
+                            <path d="M30 55 L50 35 L70 55" stroke="currentColor" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/>
+                            <path d="M40 65 L50 55 L60 65" stroke="currentColor" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/>
+                        </svg>
+                    </div>
+                </div>
+                <h1 class="auth-title">Crear Cuenta</h1>
+                <p class="auth-subtitle">Únete a MIES - Misión Esperanza</p>
+            </div>
+            
+            <form asp-action="Register" method="post" class="auth-form">
+                <div asp-validation-summary="ModelOnly" class="alert alert-danger mb-3"></div>
+                
+                <div class="row">
+                    <div class="col-md-6">
+                        <div class="form-floating mb-3">
+                            <input asp-for="Nombres" class="form-control" id="nombres" placeholder="Nombres" autofocus/>
+                            <label for="nombres">Nombres</label>
+                            <span asp-validation-for="Nombres" class="text-danger small"></span>
+                        </div>
+                    </div>
+                    <div class="col-md-6">
+                        <div class="form-floating mb-3">
+                            <input asp-for="Apellidos" class="form-control" id="apellidos" placeholder="Apellidos"/>
+                            <label for="apellidos">Apellidos</label>
+                            <span asp-validation-for="Apellidos" class="text-danger small"></span>
+                        </div>
+                    </div>
+                </div>
+                
+                <div class="form-floating mb-3">
+                    <input asp-for="NombreUsuario" class="form-control" id="username" placeholder="Nombre de Usuario" autocomplete="username"/>
+                    <label for="username">
+                        <svg class="input-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                            <path d="M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2"/>
+                            <circle cx="12" cy="7" r="4"/>
+                        </svg>
+                        Nombre de Usuario
+                    </label>
+                    <span asp-validation-for="NombreUsuario" class="text-danger small"></span>
+                </div>
+                
+                <div class="form-floating mb-3">
+                    <input asp-for="Email" class="form-control" id="email" placeholder="Correo Electrónico" type="email" autocomplete="email"/>
+                    <label for="email">
+                        <svg class="input-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                            <path d="M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z"/>
+                            <polyline points="22,6 12,13 2,6"/>
+                        </svg>
+                        Correo Electrónico
+                    </label>
+                    <span asp-validation-for="Email" class="text-danger small"></span>
+                </div>
+                
+                <div class="row">
+                    <div class="col-md-6">
+                        <div class="form-floating mb-3">
+                            <input asp-for="Contrasena" class="form-control" id="password" placeholder="Contraseña" autocomplete="new-password"/>
+                            <label for="password">
+                                <svg class="input-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                                    <rect x="3" y="11" width="18" height="11" rx="2" ry="2"/>
+                                    <path d="M7 11V7a5 5 0 0 1 10 0v4"/>
+                                </svg>
+                                Contraseña
+                            </label>
+                            <span asp-validation-for="Contrasena" class="text-danger small"></span>
+                        </div>
+                    </div>
+                    <div class="col-md-6">
+                        <div class="form-floating mb-3">
+                            <input asp-for="ConfirmarContrasena" class="form-control" id="confirmPassword" placeholder="Confirmar Contraseña" autocomplete="new-password"/>
+                            <label for="confirmPassword">
+                                <svg class="input-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                                    <path d="M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z"/>
+                                </svg>
+                                Confirmar
+                            </label>
+                            <span asp-validation-for="ConfirmarContrasena" class="text-danger small"></span>
+                        </div>
+                    </div>
+                </div>
+                
+                <button type="submit" class="btn btn-primary btn-auth">
+                    <span>Crear Cuenta</span>
+                    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                        <path d="M16 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"/>
+                        <circle cx="8.5" cy="7" r="4"/>
+                        <line x1="20" y1="8" x2="20" y2="14"/>
+                        <line x1="23" y1="11" x2="17" y2="11"/>
+                    </svg>
+                </button>
+            </form>
+            
+            <div class="auth-footer">
+                <p>¿Ya tienes una cuenta?</p>
+                <a asp-action="Login" class="auth-link">Iniciar Sesión</a>
+            </div>
+            
+            <div class="auth-branding">
+                <span>Sistema de Gestión</span>
+                <span class="separator">•</span>
+                <span>Fundación MIES</span>
+            </div>
+        </div>
+    </div>
+    
+    <script src="~/lib/jquery/dist/jquery.min.js"></script>
+    <script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
+    <script src="~/lib/jquery-validation/dist/jquery.validate.min.js"></script>
+    <script src="~/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.min.js"></script>
+</body>
+</html>
diff --git a/foundation_system/Views/Antecedentes/Index.cshtml b/foundation_system/Views/Antecedentes/Index.cshtml
new file mode 100644
index 0000000..91685f3
--- /dev/null
+++ b/foundation_system/Views/Antecedentes/Index.cshtml
@@ -0,0 +1,89 @@
+@model IEnumerable<foundation_system.Models.Nino>
+@{
+    ViewData["Title"] = "Gestión de Antecedentes";
+}
+
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h2 class="mb-1">Antecedentes</h2>
+        <p class="text-muted small mb-0">Seleccione un niño para gestionar su historial de antecedentes y conducta.</p>
+    </div>
+</div>
+
+<div class="card-custom mb-4">
+    <form asp-action="Index" method="get" class="row g-3 align-items-center">
+        <div class="col-md-10">
+            <div class="input-group">
+                <span class="input-group-text bg-white border-end-0">
+                    <i class="bi bi-search text-muted"></i>
+                </span>
+                <input type="text" name="search" class="form-control border-start-0 ps-0" 
+                       placeholder="Buscar por código o nombre..." value="@ViewBag.Search" />
+            </div>
+        </div>
+        <div class="col-md-2 d-grid">
+            <button type="submit" class="btn btn-primary">Buscar</button>
+        </div>
+    </form>
+</div>
+
+<div class="card-custom">
+    <div class="table-responsive">
+        <table class="table-custom">
+            <thead>
+                <tr>
+                    <th>Código</th>
+                    <th>Nombre Completo</th>
+                    <th>Grado/Nivel</th>
+                    <th>Estado</th>
+                    <th>Acciones</th>
+                </tr>
+            </thead>
+            <tbody>
+                @if (!Model.Any())
+                {
+                    <tr>
+                        <td colspan="5" class="text-center py-4 text-muted">No se encontraron niños.</td>
+                    </tr>
+                }
+                @foreach (var item in Model)
+                {
+                    <tr>
+                        <td class="fw-bold">@item.CodigoInscripcion</td>
+                        <td>@item.Persona.NombreCompleto</td>
+                        <td>@item.NivelGrado</td>
+                        <td>
+                            <span class="badge @(item.Estado == "ACTIVO" ? "bg-success" : "bg-secondary")">
+                                @item.Estado
+                            </span>
+                        </td>
+                        <td>
+                            <a asp-action="Manage" asp-route-id="@item.Id" class="btn btn-sm btn-primary" title="Gestionar Antecedentes">
+                                <i class="bi bi-journal-text me-1"></i> Gestionar
+                            </a>
+                        </td>
+                    </tr>
+                }
+            </tbody>
+        </table>
+    </div>
+
+    @if (ViewBag.TotalPages > 1)
+    {
+        <div class="d-flex justify-content-between align-items-center mt-4">
+            <div class="text-muted small">
+                Mostrando página @ViewBag.CurrentPage de @ViewBag.TotalPages
+            </div>
+            <nav aria-label="Page navigation">
+                <ul class="pagination pagination-sm mb-0">
+                    @for (int i = 1; i <= ViewBag.TotalPages; i++)
+                    {
+                        <li class="page-item @(i == ViewBag.CurrentPage ? "active" : "")">
+                            <a class="page-link" asp-action="Index" asp-route-page="@i" asp-route-search="@ViewBag.Search">@i</a>
+                        </li>
+                    }
+                </ul>
+            </nav>
+        </div>
+    }
+</div>
diff --git a/foundation_system/Views/Antecedentes/Manage.cshtml b/foundation_system/Views/Antecedentes/Manage.cshtml
new file mode 100644
index 0000000..9acb77d
--- /dev/null
+++ b/foundation_system/Views/Antecedentes/Manage.cshtml
@@ -0,0 +1,138 @@
+@model foundation_system.Models.ViewModels.AntecedentesViewModel
+@{
+    ViewData["Title"] = "Historial de Antecedentes - " + Model.Nino.Persona.NombreCompleto;
+}
+
+<div class="mb-4">
+    <a asp-action="Index" class="btn btn-link p-0 text-decoration-none mb-2">
+        <i class="bi bi-arrow-left"></i> Volver al listado
+    </a>
+    <div class="d-flex justify-content-between align-items-center">
+        <div>
+            <h2 class="mb-1">@Model.Nino.Persona.NombreCompleto</h2>
+            <p class="text-muted small mb-0">Código: <strong>@Model.Nino.CodigoInscripcion</strong> | Grado: @Model.Nino.NivelGrado</p>
+        </div>
+        <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#modalNuevoAntecedente">
+            <i class="bi bi-plus-circle me-2"></i>Nuevo Registro
+        </button>
+    </div>
+</div>
+
+<div class="row">
+    <div class="col-md-12">
+        <div class="card-custom">
+            <h5 class="card-title mb-4">Historial de Antecedentes</h5>
+            <div class="table-responsive">
+                <table class="table-custom">
+                    <thead>
+                        <tr>
+                            <th>Fecha</th>
+                            <th>Tipo</th>
+                            <th>Gravedad</th>
+                            <th>Descripción</th>
+                            <th>Registrado por</th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                        @if (!Model.Historial.Any())
+                        {
+                            <tr>
+                                <td colspan="5" class="text-center py-4 text-muted">No hay antecedentes registrados para este niño.</td>
+                            </tr>
+                        }
+                        @foreach (var item in Model.Historial)
+                        {
+                            <tr>
+                                <td>@item.FechaIncidente.ToString("dd/MM/yyyy HH:mm")</td>
+                                <td>
+                                    <span class="badge @(item.TipoAntecedente switch {
+                                        "LlamadaAtencion" => "bg-info",
+                                        "Suspension" => "bg-warning",
+                                        "Castigo" => "bg-danger",
+                                        _ => "bg-secondary"
+                                    })">
+                                        @item.TipoAntecedente
+                                    </span>
+                                </td>
+                                <td>
+                                    <span class="text-@(item.Gravedad switch {
+                                        "Alta" => "danger",
+                                        "Media" => "warning",
+                                        "Baja" => "success",
+                                        _ => "muted"
+                                    }) fw-bold">
+                                        @item.Gravedad
+                                    </span>
+                                </td>
+                                <td>@item.Descripcion</td>
+                                <td class="small">@item.UsuarioRegistra</td>
+                            </tr>
+                        }
+                    </tbody>
+                </table>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Modal Nuevo Antecedente -->
+<div class="modal fade" id="modalNuevoAntecedente" tabindex="-1">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <form asp-action="Create" method="post">
+                @Html.AntiForgeryToken()
+                <input type="hidden" name="ninoId" value="@Model.Nino.Id" />
+                
+                <div class="modal-header">
+                    <h5 class="modal-title">Registrar Nuevo Antecedente</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+                </div>
+                <div class="modal-body">
+                    <div asp-validation-summary="ModelOnly" class="text-danger mb-3"></div>
+                    
+                    <div class="mb-3">
+                        <label asp-for="FechaIncidente" class="form-label"></label>
+                        <input asp-for="FechaIncidente" class="form-control" type="datetime-local" />
+                        <span asp-validation-for="FechaIncidente" class="text-danger"></span>
+                    </div>
+
+                    <div class="mb-3">
+                        <label asp-for="TipoAntecedente" class="form-label"></label>
+                        <select asp-for="TipoAntecedente" class="form-select">
+                            <option value="">Seleccione un tipo...</option>
+                            <option value="LlamadaAtencion">Llamada de Atención</option>
+                            <option value="Suspension">Suspensión</option>
+                            <option value="Castigo">Castigo</option>
+                        </select>
+                        <span asp-validation-for="TipoAntecedente" class="text-danger"></span>
+                    </div>
+
+                    <div class="mb-3">
+                        <label asp-for="Gravedad" class="form-label"></label>
+                        <select asp-for="Gravedad" class="form-select">
+                            <option value="">Seleccione gravedad...</option>
+                            <option value="Baja">Baja</option>
+                            <option value="Media">Media</option>
+                            <option value="Alta">Alta</option>
+                        </select>
+                        <span asp-validation-for="Gravedad" class="text-danger"></span>
+                    </div>
+
+                    <div class="mb-3">
+                        <label asp-for="Descripcion" class="form-label"></label>
+                        <textarea asp-for="Descripcion" class="form-control" rows="4" placeholder="Detalle lo sucedido..."></textarea>
+                        <span asp-validation-for="Descripcion" class="text-danger"></span>
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancelar</button>
+                    <button type="submit" class="btn btn-primary">Guardar Registro</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+@section Scripts {
+    @{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
+}
diff --git a/foundation_system/Views/Asistencia/Index.cshtml b/foundation_system/Views/Asistencia/Index.cshtml
new file mode 100644
index 0000000..fbf7aad
--- /dev/null
+++ b/foundation_system/Views/Asistencia/Index.cshtml
@@ -0,0 +1,803 @@
+@model foundation_system.Models.ViewModels.AsistenciaGridViewModel
+@{
+    ViewData["Title"] = "Control de Asistencia";
+
+    var diasSeleccionadosList = new List<string>();
+    if (!string.IsNullOrEmpty(Model.DiasSemanaSeleccionados))
+    {
+        diasSeleccionadosList = Model.DiasSemanaSeleccionados
+            .Split(',', StringSplitOptions.RemoveEmptyEntries)
+            .Select(d => d.Trim())
+            .ToList();
+    }
+
+    var diasAMostrar = Model.DiasDelMes
+        .Where(d => diasSeleccionadosList.Count == 0 ||
+                    diasSeleccionadosList.Contains(((int)d.DayOfWeek).ToString()))
+        .ToList();
+}
+
+<div class="container-fluid">
+    <div class="card mb-4">
+        <div class="card-header text-white d-flex align-items-center" style="background: linear-gradient(180deg, #2c3e50 0%, #1a2530 100%);">
+            <h5 class="mb-0 text-white"><i class="bi bi-funnel"></i> Filtros</h5>
+        </div>
+        <div class="card-body">
+            <form method="get" id="filtroForm" class="row g-3">
+                <div class="col-md-3">
+                    <label class="form-label">Año</label>
+                    <select name="año" class="form-select" id="selectAnio">
+                        @foreach (var año in (List<SelectListItem>)ViewBag.Años)
+                        {
+                            <option value="@año.Value" selected="@año.Selected">
+                                @año.Text
+                            </option>
+                        }
+                    </select>
+                </div>
+
+                <div class="col-md-3">
+                    <label class="form-label">Mes</label>
+                    <select name="mes" class="form-select" id="selectMes">
+                        @foreach (var mes in (List<SelectListItem>)ViewBag.Meses)
+                        {
+                            <option value="@mes.Value" selected="@(mes.Value == Model.Mes.ToString())">
+                                @mes.Text
+                            </option>
+                        }
+                    </select>
+                </div>
+
+                <div class="col-md-4">
+                    <label class="form-label">Días de la semana</label>
+                    <div class="dias-semana-checkboxes">
+                        @foreach (var dia in (List<SelectListItem>)ViewBag.DiasSemana)
+                        {
+                            var isChecked = diasSeleccionadosList.Contains(dia.Value);
+                            <div class="form-check form-check-inline">
+                                <input class="form-check-input dia-checkbox"
+                                       type="checkbox"
+                                       value="@dia.Value"
+                                       id="dia@(dia.Value)"
+                                       @(isChecked ? "checked" : "")>
+                                <label class="form-check-label" for="dia@(dia.Value)">
+                                    @dia.Text
+                                </label>
+                            </div>
+                        }
+                        <input type="hidden" name="diasSemana" id="diasSemanaInput"
+                               value="@Model.DiasSemanaSeleccionados">
+                    </div>
+                </div>
+
+                <div class="col-md-2 d-flex align-items-end">
+                    <button type="submit" class="btn w-100"
+                            style="background: linear-gradient(180deg, #2c3e50 0%, #1a2530 100%); color: white;">
+                        <i class="bi bi-search text-white"></i> Filtrar
+                    </button>
+                </div>
+            </form>
+        </div>
+    </div>
+
+
+
+    <div class="card">
+        <div class="card-header bg-success text-white d-flex justify-content-between align-items-center">
+            <h5 class="mb-0">
+                <i class="bi bi-calendar-check"></i>
+                Asistencia - @Model.NombreMes @Model.Año
+                <span class="badge bg-light text-dark ms-2">@Model.Expedientes.Count niños</span>
+            </h5>
+            <div>
+                <button class="btn btn-light btn-sm" id="btnExportar">
+                    <i class="bi bi-file-earmark-excel"></i> Exportar
+                </button>
+            </div>
+        </div>
+
+        <div class="card-body p-0">
+            <div class="table-responsive" style="max-height: 70vh; overflow-y: auto;">
+                <table class="table table-bordered table-hover table-sm" id="tablaAsistencia">
+                    <thead class="table-dark sticky-top">
+                    <tr>
+                        <th class="sticky-left bg-dark text-white border-secondary" style="min-width: 200px;">
+                            <div class="text-white">Nombre</div>
+                            <div class="small text-light">Edad</div>
+                        </th>
+                        @foreach (var dia in Model.DiasDelMes)
+                        {
+                            var diaSemana = ((int)dia.DayOfWeek).ToString();
+                            var isChecked = Model.DiasSemanaSeleccionados?.Contains(diaSemana) ?? true;
+
+                            if (!string.IsNullOrEmpty(Model.DiasSemanaSeleccionados) && !isChecked)
+                            {
+                                continue;
+                            }
+
+                            var nombreDia = dia.ToString("ddd", new System.Globalization.CultureInfo("es-ES"));
+                            var esFinDeSemana = dia.DayOfWeek == DayOfWeek.Saturday || dia.DayOfWeek == DayOfWeek.Sunday;
+
+                            <th class="text-center text-dark border-secondary @(esFinDeSemana ? "" : "")" style="min-width: 50px;">
+                                <div class="text-dark">@dia.Day</div>
+                                <div class="small text-muted">@nombreDia</div>
+                            </th>
+                        }
+                    </tr>
+                    </thead>
+                    <tbody>
+                    @foreach (var expediente in Model.Expedientes)
+                    {
+                        var nombreCompleto = $"{expediente.Persona.Nombres} {expediente.Persona.Apellidos}".Trim();
+                        var edad = 0;
+                        if (expediente.Persona.FechaNacimiento.HasValue)
+                        {
+                            var birthDate = expediente.Persona.FechaNacimiento.Value;
+                            var today = DateOnly.FromDateTime(DateTime.Today);
+                            edad = today.Year - birthDate.Year;
+                            if (birthDate > today.AddYears(-edad))
+                            {
+                                edad--;
+                            }
+                        }
+
+                        <tr data-expediente-id="@expediente.Id">
+                            <td class="sticky-left bg-white" style="min-width: 200px;">
+                                <div class="fw-bold">@nombreCompleto</div>
+                                <div class="small text-muted">Edad: @edad años</div>
+                            </td>
+
+                            @foreach (var dia in Model.DiasDelMes)
+                            {
+                                var diaSemana = ((int)dia.DayOfWeek).ToString();
+                                var isChecked = Model.DiasSemanaSeleccionados?.Contains(diaSemana) ?? true;
+
+                                if (!string.IsNullOrEmpty(Model.DiasSemanaSeleccionados) && !isChecked)
+                                {
+                                    continue;
+                                }
+
+                                var key = $"{expediente.Id}_{dia:yyyy-MM-dd}";
+                                var estadoActual = Model.Asistencias.ContainsKey(key)
+                                    ? Model.Asistencias[key]
+                                    : "";
+
+                                var claseEstado = estadoActual switch
+                                {
+                                    "P" => "celda-presente",
+                                    "T" => "celda-tarde",
+                                    "F" => "celda-falta",
+                                    _ => ""
+                                };
+
+                                var esFinDeSemana = dia.DayOfWeek == DayOfWeek.Saturday || dia.DayOfWeek == DayOfWeek.Sunday;
+
+                                <td class="text-center p-0 celda-asistencia @claseEstado @(esFinDeSemana ? "bg-light" : "")"
+                                    data-expediente="@expediente.Id"
+                                    data-fecha="@dia.ToString("yyyy-MM-dd")"
+                                    style="min-width: 50px;">
+
+                                    <select class="form-select form-select-sm estado-select border-0 h-100 w-100"
+                                            data-initial="@estadoActual">
+                                        <option value=""></option>
+                                        <option value="P" selected="@(estadoActual == "P")" class="bg-success text-white">P</option>
+                                        <option value="T" selected="@(estadoActual == "T")" class="bg-warning">T</option>
+                                        <option value="F" selected="@(estadoActual == "F")" class="bg-danger text-white">F</option>
+                                        <option value="J" selected="@(estadoActual == "J")" class="bg-info text-white">J</option>
+                                        <option value="E" selected="@(estadoActual == "E")" class="bg-secondary text-white">E</option>
+                                    </select>
+                                </td>
+                            }
+                        </tr>
+                    }
+                    </tbody>
+                    <tfoot class="table-dark">
+                    <tr>
+                        <td class="sticky-left bg-dark text-white fw-bold">
+                            <div>TOTALES POR DÍA</div>
+                            <div class="small text-light">P/T/F</div>
+                        </td>
+
+                        @foreach (var dia in Model.DiasDelMes)
+                        {
+                            var diaSemana = ((int)dia.DayOfWeek).ToString();
+                            var isChecked = Model.DiasSemanaSeleccionados?.Contains(diaSemana) ?? true;
+
+                            if (!string.IsNullOrEmpty(Model.DiasSemanaSeleccionados) && !isChecked)
+                            {
+                                continue;
+                            }
+
+                            var esFinDeSemana = dia.DayOfWeek == DayOfWeek.Saturday || dia.DayOfWeek == DayOfWeek.Sunday;
+
+                            var totalPresente = 0;
+                            var totalTarde = 0;
+                            var totalFalta = 0;
+                            var totalJustificado = 0;
+                            var totalEnfermo = 0;
+
+                            foreach (var expediente in Model.Expedientes)
+                            {
+                                var key = $"{expediente.Id}_{dia:yyyy-MM-dd}";
+                                if (Model.Asistencias.ContainsKey(key))
+                                {
+                                    var estado = Model.Asistencias[key];
+                                    switch (estado)
+                                    {
+                                        case "P": totalPresente++; break;
+                                        case "T": totalTarde++; break;
+                                        case "F": totalFalta++; break;
+                                        case "J": totalJustificado++; break;
+                                        case "E": totalEnfermo++; break;
+                                    }
+                                }
+                            }
+
+                            var totalDia = totalPresente + totalTarde + totalFalta + totalJustificado + totalEnfermo;
+
+                            <td class="text-center p-1 @(esFinDeSemana ? "bg-secondary" : "bg-dark") text-white"
+                                style="min-width: 65px; font-size: 0.85rem;">
+                                <div class="fw-bold mb-1">@totalDia</div>
+                                <div class="d-flex justify-content-center gap-1 flex-wrap">
+                                    <span class="badge bg-success" title="Presentes">@totalPresente</span>
+                                    <span class="badge bg-warning text-dark" title="Tardes">@totalTarde</span>
+                                    <span class="badge bg-danger" title="Faltas">@totalFalta</span>
+                                    <span class="badge bg-info" title="Justificados">@totalJustificado</span>
+                                    <span class="badge bg-secondary" title="Enfermos">@totalEnfermo</span>
+                                </div>
+                            </td>
+                        }
+                    </tr>
+                    </tfoot>
+                </table>
+            </div>
+        </div>
+
+        <div class="card-footer">
+            <div class="row">
+                <div class="col-md-6">
+                    <div class="leyenda">
+                        <span class="badge bg-success me-2">P = Presente</span>
+                        <span class="badge bg-warning me-2 text-dark">T = Tarde</span>
+                        <span class="badge bg-danger me-2">F = Falto</span>
+                        <span class="badge bg-info me-2">J = Justificado</span>
+                        <span class="badge bg-secondary me-2">E = Enfermo</span>
+                        <span class="text-muted ms-3">(Vacío = No registrado)</span>
+                    </div>
+                </div>
+                <div class="col-md-6 text-end">
+                    <small class="text-muted">
+                        Total: @Model.Expedientes.Count niños × @diasAMostrar.Count días =
+                        @(Model.Expedientes.Count * diasAMostrar.Count) registros posibles
+                    </small>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<div class="modal fade" id="modalCarga" tabindex="-1">
+    <div class="modal-dialog modal-sm">
+        <div class="modal-content">
+            <div class="modal-body text-center">
+                <div class="spinner-border text-primary" role="status">
+                    <span class="visually-hidden">Cargando...</span>
+                </div>
+                <p class="mt-2">Guardando cambios...</p>
+            </div>
+        </div>
+    </div>
+</div>
+
+@section Styles {
+    <style>
+        #estadisticasContainer {
+            min-height: 90px;
+            transition: min-height 0.3s ease;
+        }
+
+        #estadisticasContainer .card {
+            height: 100%;
+            min-height: 90px;
+            display: flex;
+            flex-direction: column;
+        }
+
+        #estadisticasContainer .card-body {
+            flex: 1;
+            display: flex;
+            flex-direction: column;
+            justify-content: center;
+        }
+
+        #estadisticasContainer .spinner-border {
+            width: 1.75rem;
+            height: 1.75rem;
+        }
+
+        #estadisticasContainer .alert {
+            margin: 0;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            min-height: 90px;
+        }
+
+        tfoot.table-dark td {
+            vertical-align: middle !important;
+            border-color: #495057 !important;
+        }
+
+        tfoot .badge {
+            font-size: 0.7rem;
+            padding: 0.25em 0.5em;
+            min-width: 24px;
+        }
+
+        tfoot tr:first-child td {
+            border-top: 2px solid #6c757d;
+        }
+
+        tfoot tr.bg-success td {
+            border-top: 2px solid #198754;
+        }
+
+        tfoot td[colspan] {
+            background: linear-gradient(135deg, #198754 0%, #146c43 100%) !important;
+            color: white !important;
+        }
+
+        tfoot td[colspan] .badge {
+            font-size: 0.8rem;
+            padding: 0.4em 0.8em;
+        }
+
+        tfoot td[colspan] .text-light {
+            color: rgba(255, 255, 255, 0.9) !important;
+        }
+
+        tfoot.table-dark .sticky-left {
+            background: #343a40 !important;
+            color: white !important;
+        }
+
+        tfoot.table-dark td.bg-dark {
+            background-color: #343a40 !important;
+        }
+
+        tfoot.table-dark td.bg-secondary {
+            background-color: #6c757d !important;
+        }
+
+        tfoot.table-dark .text-white,
+        tfoot.table-dark .text-light {
+            color: white !important;
+        }
+
+        tfoot.table-dark .text-muted {
+            color: rgba(255, 255, 255, 0.7) !important;
+        }
+
+        .table th, .table td {
+            vertical-align: middle;
+        }
+
+        .celda-presente {
+            background-color: #d1e7dd !important;
+        }
+
+        .celda-tarde {
+            background-color: #fff3cd !important;
+        }
+
+        .celda-falta {
+            background-color: #f8d7da !important;
+        }
+
+        .celda-justificado {
+            background-color: #cff4fc !important;
+        }
+
+        .celda-enfermo {
+            background-color: #e2e3e5 !important;
+        }
+
+        .estado-select {
+            cursor: pointer;
+            transition: all 0.2s;
+            border: 1px solid transparent !important;
+            text-align: center;
+            -webkit-appearance: none;
+            -moz-appearance: none;
+            appearance: none;
+        }
+
+        .estado-select::-ms-expand {
+            display: none;
+        }
+
+        .estado-select:focus {
+            box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
+            outline: none;
+        }
+
+        .estado-select.bg-success {
+            background-color: #198754 !important;
+            color: white !important;
+            border-color: #198754 !important;
+        }
+
+        .estado-select.bg-warning {
+            background-color: #ffc107 !important;
+            color: black !important;
+            border-color: #ffc107 !important;
+        }
+
+        .estado-select.bg-danger {
+            background-color: #dc3545 !important;
+            color: white !important;
+            border-color: #dc3545 !important;
+        }
+
+        .estado-select.bg-info {
+            background-color: #0dcaf0 !important;
+            color: white !important;
+            border-color: #0dcaf0 !important;
+        }
+
+        .estado-select.bg-secondary {
+            background-color: #6c757d !important;
+            color: white !important;
+            border-color: #6c757d !important;
+        }
+
+        .estado-select:not([value]):not([value=""]) {
+            background-color: white !important;
+            color: black !important;
+        }
+
+        .celda-asistencia.changed {
+            outline: 2px solid #0d6efd;
+            outline-offset: -2px;
+        }
+
+        .sticky-left {
+            position: sticky;
+            left: 0;
+            background: white;
+            z-index: 5;
+        }
+
+        .dias-semana-checkboxes {
+            background: #f8f9fa;
+            padding: 10px;
+            border-radius: 5px;
+            border: 1px solid #dee2e6;
+        }
+
+        .bg-lunes { background-color: #e3f2fd !important; }
+        .bg-martes { background-color: #f3e5f5 !important; }
+        .bg-miercoles { background-color: #e8f5e8 !important; }
+        .bg-jueves { background-color: #fff3e0 !important; }
+        .bg-viernes { background-color: #fce4ec !important; }
+        .bg-sabado { background-color: #f1f8e9 !important; }
+        .bg-domingo { background-color: #fff8e1 !important; }
+
+        .table-dark.sticky-top {
+            z-index: 10;
+        }
+
+        .card .display-6 {
+            font-size: 2rem;
+            font-weight: bold;
+        }
+
+        .progress {
+            background-color: rgba(255, 255, 255, 0.3);
+        }
+
+        .celda-asistencia:hover {
+            background-color: #f8f9fa !important;
+        }
+
+        .celda-presente:hover {
+            background-color: #c3e6cb !important;
+        }
+
+        .celda-tarde:hover {
+            background-color: #ffeaa7 !important;
+        }
+
+        .celda-falta:hover {
+            background-color: #f5c6cb !important;
+        }
+
+        .celda-justificado:hover {
+            background-color: #b6effb !important;
+        }
+
+        .celda-enfermo:hover {
+            background-color: #d3d6d8 !important;
+        }
+
+        @@media (max-width: 768px) {
+            .table-responsive {
+                font-size: 0.85rem;
+            }
+
+            .estado-select {
+                padding: 0.25rem;
+                font-size: 0.8rem;
+            }
+
+            .dias-semana-checkboxes .form-check-inline {
+                display: block;
+                margin-right: 0;
+                margin-bottom: 5px;
+            }
+        }
+
+        .celda-asistencia, .estado-select {
+            transition: background-color 0.3s ease, color 0.3s ease;
+        }
+
+        .bg-light {
+            background-color: #f8f9fa !important;
+        }
+
+        .leyenda .badge {
+            font-size: 0.8rem;
+            padding: 0.4em 0.8em;
+        }
+
+        .celda-asistencia {
+            min-width: 65px !important;
+        }
+
+        .table th.text-center {
+            min-width: 65px !important;
+        }
+
+        .sticky-left {
+            min-width: 240px !important;
+        }
+
+        .estado-select {
+            padding: 10px 4px !important;
+            font-size: 14px !important;
+        }
+    </style>
+}
+
+@section Scripts {
+    <script>
+        $(document).ready(function () {
+            cargarEstadisticas();
+
+            $('.dia-checkbox').change(function () {
+                var diasSeleccionados = $('.dia-checkbox:checked').map(function () {
+                    return $(this).val();
+                }).get().join(',');
+                $('#diasSemanaInput').val(diasSeleccionados);
+            });
+
+            inicializarColores();
+
+            $('#btnGuardarTodo').click(function () {
+                var cambios = [];
+                var celdasCambiadas = $('.celda-asistencia.changed');
+
+                if (celdasCambiadas.length === 0) {
+                    toastr.info('No hay cambios para guardar');
+                    return;
+                }
+
+                if (!confirm(`¿Guardar ${celdasCambiadas.length} cambios?`)) {
+                    return;
+                }
+
+                $('#modalCarga').modal('show');
+
+                celdasCambiadas.each(function () {
+                    var celda = $(this);
+                    var select = celda.find('.estado-select');
+                    var expedienteId = celda.data('expediente');
+                    var fecha = celda.data('fecha');
+                    var estado = select.val();
+
+                    cambios.push({
+                        expedienteId: expedienteId,
+                        fecha: fecha,
+                        estado: estado
+                    });
+                });
+
+                $.ajax({
+                    url: '@Url.Action("GuardarAsistenciasMasivas", "Asistencia")',
+                    type: 'POST',
+                    contentType: 'application/json',
+                    data: JSON.stringify(cambios),
+                    success: function (response) {
+                        $('#modalCarga').modal('hide');
+                        if (response.success) {
+                            $('.celda-asistencia').removeClass('changed');
+                            $('.estado-select').each(function () {
+                                $(this).data('initial', $(this).val());
+                            });
+                            toastr.success(response.message);
+                            cargarEstadisticas();
+                        } else {
+                            toastr.error(response.message);
+                        }
+                    },
+                    error: function () {
+                        $('#modalCarga').modal('hide');
+                        toastr.error('Error al guardar los cambios');
+                    }
+                });
+            });
+
+            $('#btnExportar').click(function () {
+                var año = $('#selectAnio').val();
+                var mes = $('#selectMes').val();
+                var diasSemana = $('#diasSemanaInput').val();
+
+                var url = '@Url.Action("ExportarExcel", "Asistencia")' +
+                    '?año=' + año +
+                    '&mes=' + mes +
+                    '&diasSemana=' + diasSemana;
+
+                window.open(url, '_blank');
+            });
+
+            $('#selectAnio, #selectMes').change(function () {
+                $('#filtroForm').submit();
+            });
+
+            aplicarColoresDias();
+
+            $('.estado-select').change(function () {
+                var estado = $(this).val();
+                var celda = $(this).closest('.celda-asistencia');
+                var initial = $(this).data('initial');
+
+                aplicarColorSelect($(this), estado);
+                aplicarColorCelda(celda, estado);
+
+                if (initial !== estado) {
+                    celda.addClass('changed');
+                } else {
+                    celda.removeClass('changed');
+                }
+
+                actualizarFooterTabla();
+
+                var expedienteId = celda.data('expediente');
+                var fecha = celda.data('fecha');
+
+                guardarAsistencia(expedienteId, fecha, estado, celda);
+            });
+        });
+
+        function aplicarColorCelda(celda, estado) {
+            celda.removeClass('celda-presente celda-tarde celda-falta celda-justificado celda-enfermo');
+            switch (estado) {
+                case 'P': celda.addClass('celda-presente'); break;
+                case 'T': celda.addClass('celda-tarde'); break;
+                case 'F': celda.addClass('celda-falta'); break;
+                case 'J': celda.addClass('celda-justificado'); break;
+                case 'E': celda.addClass('celda-enfermo'); break;
+            }
+        }
+
+        function aplicarColorSelect(select, estado) {
+            select.removeClass('bg-success bg-warning bg-danger bg-info bg-secondary text-white');
+            switch (estado) {
+                case 'P': select.addClass('bg-success text-white'); break;
+                case 'T': select.addClass('bg-warning'); break;
+                case 'F': select.addClass('bg-danger text-white'); break;
+                case 'J': select.addClass('bg-info text-white'); break;
+                case 'E': select.addClass('bg-secondary text-white'); break;
+            }
+        }
+
+        function inicializarColores() {
+            $('.estado-select').each(function () {
+                var estado = $(this).val();
+                var celda = $(this).closest('.celda-asistencia');
+                aplicarColorSelect($(this), estado);
+                aplicarColorCelda(celda, estado);
+            });
+        }
+
+        function guardarAsistencia(expedienteId, fecha, estado, celda) {
+            $.ajax({
+                url: '@Url.Action("GuardarAsistencia", "Asistencia")',
+                type: 'POST',
+                data: {
+                    expedienteId: expedienteId,
+                    fecha: fecha,
+                    estado: estado
+                },
+                success: function (response) {
+                    if (response.success) {
+                        celda.removeClass('changed');
+                        celda.find('.estado-select').data('initial', estado);
+                        toastr.success('Guardado correctamente');
+                        actualizarFooterTabla();
+                    } else {
+                        toastr.error(response.message);
+                        var select = celda.find('.estado-select');
+                        var initial = select.data('initial');
+                        aplicarColorSelect(select, initial);
+                        aplicarColorCelda(celda, initial);
+                        select.val(initial);
+                    }
+                },
+                error: function () {
+                    toastr.error('Error de conexión');
+                    var select = celda.find('.estado-select');
+                    var initial = select.data('initial');
+                    aplicarColorSelect(select, initial);
+                    aplicarColorCelda(celda, initial);
+                    select.val(initial);
+                }
+            });
+        }
+
+        function cargarEstadisticas() {
+            // Statistics cards removed from UI
+            actualizarFooterTabla();
+        }
+
+        function actualizarFooterTabla() {
+            $('tfoot tr td').each(function (index) {
+                if (index === 0) return;
+                var td = $(this);
+                var colIndex = td.index();
+                if (td.hasClass('text-center')) {
+                    var totalPresente = 0, totalTarde = 0, totalFalta = 0, totalJustificado = 0, totalEnfermo = 0;
+                    $('tbody tr').each(function () {
+                        var celda = $(this).find('td').eq(colIndex);
+                        if (celda.length) {
+                            var estado = celda.find('.estado-select').val();
+                            if (estado === 'P') totalPresente++;
+                            else if (estado === 'T') totalTarde++;
+                            else if (estado === 'F') totalFalta++;
+                            else if (estado === 'J') totalJustificado++;
+                            else if (estado === 'E') totalEnfermo++;
+                        }
+                    });
+                    var totalDia = totalPresente + totalTarde + totalFalta + totalJustificado + totalEnfermo;
+                    td.html(`
+                        <div class="fw-bold mb-1">${totalDia}</div>
+                        <div class="d-flex justify-content-center gap-1 flex-wrap">
+                            <span class="badge bg-success" title="Presentes">${totalPresente}</span>
+                            <span class="badge bg-warning text-dark" title="Tardes">${totalTarde}</span>
+                            <span class="badge bg-danger" title="Faltas">${totalFalta}</span>
+                            <span class="badge bg-info" title="Justificados">${totalJustificado}</span>
+                            <span class="badge bg-secondary" title="Enfermos">${totalEnfermo}</span>
+                        </div>
+                    `);
+                }
+            });
+        }
+
+        function aplicarColoresDias() {
+            $('th.text-center').each(function () {
+                var textoDia = $(this).find('.small').text().trim();
+                var claseColor = '';
+                switch (textoDia) {
+                    case 'lun': claseColor = 'bg-lunes'; break;
+                    case 'mar': claseColor = 'bg-martes'; break;
+                    case 'mié': claseColor = 'bg-miercoles'; break;
+                    case 'jue': claseColor = 'bg-jueves'; break;
+                    case 'vie': claseColor = 'bg-viernes'; break;
+                    case 'sáb': claseColor = 'bg-sabado'; break;
+                    case 'dom': claseColor = 'bg-domingo'; break;
+                }
+                if (claseColor) $(this).addClass(claseColor);
+            });
+        }
+    </script>
+}
diff --git a/foundation_system/Views/Configuracion/Edit.cshtml b/foundation_system/Views/Configuracion/Edit.cshtml
new file mode 100644
index 0000000..f5f68db
--- /dev/null
+++ b/foundation_system/Views/Configuracion/Edit.cshtml
@@ -0,0 +1,73 @@
+@model foundation_system.Models.ConfiguracionSistema
+@{
+    ViewData["Title"] = "Editar Configuración";
+}
+
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h2 class="mb-1">Editar Parámetro</h2>
+        <p class="text-muted small mb-0">Modificando la clave: <code>@Model.Clave</code></p>
+    </div>
+    <a asp-action="Index" asp-route-categoria="@Model.Categoria" class="btn btn-outline-secondary">
+        <i class="bi bi-arrow-left me-2"></i>Volver
+    </a>
+</div>
+
+<div class="row justify-content-center">
+    <div class="col-md-6">
+        <div class="card-custom">
+            <form asp-action="Edit" method="post">
+                @Html.AntiForgeryToken()
+                <input type="hidden" asp-for="Id" />
+                
+                <div class="mb-4">
+                    <label class="form-label fw-bold">Descripción</label>
+                    <p class="text-muted small">@Model.Descripcion</p>
+                </div>
+
+                <div class="mb-4">
+                    <label asp-for="Valor" class="form-label fw-bold">Valor</label>
+                    
+                    @if (Model.TipoDato == "BOOLEANO")
+                    {
+                        <select asp-for="Valor" class="form-select">
+                            <option value="true">Activado (True)</option>
+                            <option value="false">Desactivado (False)</option>
+                        </select>
+                    }
+                    else if (Model.TipoDato == "HTML" || Model.TipoDato == "JSON")
+                    {
+                        <textarea asp-for="Valor" class="form-control" rows="8" style="font-family: monospace;"></textarea>
+                    }
+                    else if (Model.TipoDato == "NUMERO")
+                    {
+                        <input asp-for="Valor" class="form-control" type="number" />
+                    }
+                    else if (Model.TipoDato == "FECHA")
+                    {
+                        <input asp-for="Valor" class="form-control" type="date" />
+                    }
+                    else
+                    {
+                        <input asp-for="Valor" class="form-control" />
+                    }
+                    <span asp-validation-for="Valor" class="text-danger small"></span>
+                </div>
+
+                <div class="d-flex justify-content-between align-items-center mt-5">
+                    <div class="small text-muted">
+                        <i class="bi bi-info-circle me-1"></i>
+                        Tipo: <span class="badge bg-light text-dark border">@Model.TipoDato</span>
+                    </div>
+                    <button type="submit" class="btn btn-primary-custom">
+                        <i class="bi bi-save me-2"></i>Guardar Cambios
+                    </button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+@section Scripts {
+    @{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
+}
diff --git a/foundation_system/Views/Configuracion/Index.cshtml b/foundation_system/Views/Configuracion/Index.cshtml
new file mode 100644
index 0000000..9f0e400
--- /dev/null
+++ b/foundation_system/Views/Configuracion/Index.cshtml
@@ -0,0 +1,93 @@
+@model IEnumerable<foundation_system.Models.ConfiguracionSistema>
+@{
+    ViewData["Title"] = "Configuración del Sistema";
+    var categorias = (List<string>)ViewBag.Categorias;
+    var selectedCategoria = (string)ViewBag.SelectedCategoria;
+}
+
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h2 class="mb-1">Configuración</h2>
+        <p class="text-muted small mb-0">Gestione los parámetros dinámicos y ajustes globales del sistema.</p>
+    </div>
+</div>
+
+<div class="row mb-4">
+    <div class="col-md-12">
+        <div class="card-custom py-2 px-3">
+            <div class="d-flex gap-2 overflow-auto">
+                <a asp-action="Index" class="btn btn-sm @(string.IsNullOrEmpty(selectedCategoria) ? "btn-primary-custom" : "btn-outline-secondary")">
+                    Todas
+                </a>
+                @foreach (var cat in categorias)
+                {
+                    <a asp-action="Index" asp-route-categoria="@cat" 
+                       class="btn btn-sm @(selectedCategoria == cat ? "btn-primary-custom" : "btn-outline-secondary")">
+                        @cat
+                    </a>
+                }
+            </div>
+        </div>
+    </div>
+</div>
+
+<div class="card-custom">
+    <div class="table-responsive">
+        <table class="table-custom">
+            <thead>
+                <tr>
+                    <th>Clave</th>
+                    <th>Valor</th>
+                    <th>Categoría / Grupo</th>
+                    <th>Descripción</th>
+                    <th>Acciones</th>
+                </tr>
+            </thead>
+            <tbody>
+                @if (!Model.Any())
+                {
+                    <tr>
+                        <td colspan="5" class="text-center py-4 text-muted">No hay configuraciones registradas.</td>
+                    </tr>
+                }
+                @foreach (var item in Model)
+                {
+                    <tr>
+                        <td class="fw-bold">
+                            <code>@item.Clave</code>
+                        </td>
+                        <td>
+                            @if (item.TipoDato == "BOOLEANO")
+                            {
+                                <span class="badge @(item.Valor?.ToLower() == "true" ? "bg-success" : "bg-danger")">
+                                    @(item.Valor?.ToLower() == "true" ? "Activado" : "Desactivado")
+                                </span>
+                            }
+                            else
+                            {
+                                <span class="text-truncate d-inline-block" style="max-width: 200px;">@item.Valor</span>
+                            }
+                        </td>
+                        <td>
+                            <span class="badge bg-light text-dark border">@item.Categoria</span>
+                            <span class="badge bg-light text-muted border">@item.Grupo</span>
+                        </td>
+                        <td class="small text-muted">@item.Descripcion</td>
+                        <td>
+                            @if (item.EsEditable)
+                            {
+                                <a asp-action="Edit" asp-route-id="@item.Id" class="btn btn-sm btn-outline-secondary" title="Editar">
+                                    <i class="bi bi-pencil"></i>
+                                </a>
+                            }
+                            else
+                            {
+                                <i class="bi bi-lock-fill text-muted" title="Solo lectura"></i>
+                            }
+                        </td>
+                    </tr>
+                }
+            </tbody>
+        </table>
+    </div>
+</div>
diff --git a/foundation_system/Views/Expediente/Create.cshtml b/foundation_system/Views/Expediente/Create.cshtml
new file mode 100644
index 0000000..4205181
--- /dev/null
+++ b/foundation_system/Views/Expediente/Create.cshtml
@@ -0,0 +1,465 @@
+@model foundation_system.Models.ViewModels.ExpedienteViewModel
+@{
+    ViewData["Title"] = "Nuevo Expediente";
+}
+
+@section Styles {
+    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/npm/toastify-js/src/toastify.min.css">
+    <style>
+        .gender-group {
+            display: flex;
+            gap: 20px;
+            padding: 8px 12px;
+            background: #f8f9fa;
+            border-radius: 8px;
+            border: 1px solid #dee2e6;
+        }
+        .gender-option {
+            display: flex;
+            align-items: center;
+            gap: 8px;
+            cursor: pointer;
+        }
+        .gender-option input {
+            cursor: pointer;
+        }
+        .photo-upload-container {
+            position: relative;
+            width: 150px;
+            height: 150px;
+            margin: 0 auto 20px;
+            border-radius: 50%;
+            overflow: hidden;
+            border: 3px solid #dee2e6;
+            background: #f8f9fa;
+            cursor: pointer;
+            transition: all 0.3s ease;
+        }
+        .photo-upload-container:hover {
+            border-color: #0d6efd;
+            opacity: 0.8;
+        }
+        .photo-upload-container img {
+            width: 100%;
+            height: 100%;
+            object-fit: cover;
+        }
+        .photo-upload-container .upload-overlay {
+            position: absolute;
+            bottom: 0;
+            left: 0;
+            right: 0;
+            background: rgba(0,0,0,0.5);
+            color: white;
+            text-align: center;
+            padding: 5px 0;
+            font-size: 12px;
+            opacity: 0;
+            transition: opacity 0.3s ease;
+        }
+        .photo-upload-container:hover .upload-overlay {
+            opacity: 1;
+        }
+        .photo-placeholder {
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            height: 100%;
+            font-size: 60px;
+            color: #adb5bd;
+        }
+    </style>
+}
+
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h2 class="mb-1">Nuevo Expediente</h2>
+        <p class="text-muted small mb-0">Complete la información para registrar un nuevo niño en la fundación.</p>
+    </div>
+    <a asp-action="Index" class="btn btn-outline-secondary">
+        <i class="bi bi-arrow-left me-2"></i>Volver al Listado
+    </a>
+</div>
+
+<form asp-action="Create" method="post" id="expedienteForm" enctype="multipart/form-data">
+    @Html.AntiForgeryToken()
+    <div asp-validation-summary="ModelOnly" class="text-danger mb-3"></div>
+
+    <div class="row">
+        <!-- Datos Personales -->
+        <div class="col-md-8">
+            <div class="card-custom mb-4">
+                <h5 class="card-title mb-4"><i class="bi bi-person-vcard me-2 text-primary"></i>Datos Personales</h5>
+                <div class="row g-3">
+                    <div class="col-md-12">
+                        <div class="text-center mb-4">
+                            <input type="hidden" asp-for="FotoUrl" id="FotoUrl" />
+                            <input asp-for="FotoFile" type="file" id="photoInput" style="display: none;" accept="image/*" onchange="previewPhoto(this)" />
+                            <div class="photo-upload-container" onclick="document.getElementById('photoInput').click()">
+                                <div id="photoPreview">
+                                    <img src="/Assets/default_avatar.png" alt="Foto de perfil" id="previewImg" />
+                                </div>
+                                <div class="upload-overlay">
+                                    <i class="bi bi-camera"></i> Seleccionar Foto
+                                </div>
+                            </div>
+                            <p class="text-muted small">Haga clic para seleccionar una foto</p>
+                        </div>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Nombres" class="form-label fw-semibold"></label>
+                        <input asp-for="Nombres" class="form-control" placeholder="Ej. Juan Alberto" required />
+                        <span asp-validation-for="Nombres" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Apellidos" class="form-label fw-semibold"></label>
+                        <input asp-for="Apellidos" class="form-control" placeholder="Ej. Pérez García" required />
+                        <span asp-validation-for="Apellidos" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="FechaNacimiento" class="form-label fw-semibold"></label>
+                        <input asp-for="FechaNacimiento" class="form-control" type="date" required />
+                        <span asp-validation-for="FechaNacimiento" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Genero" class="form-label fw-semibold"></label>
+                        <div class="gender-group">
+                            <label class="gender-option">
+                                <input type="radio" asp-for="Genero" value="M" required />
+                                <span>Masculino</span>
+                            </label>
+                            <label class="gender-option">
+                                <input type="radio" asp-for="Genero" value="F" required />
+                                <span>Femenino</span>
+                            </label>
+                        </div>
+                        <span asp-validation-for="Genero" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-12">
+                        <label asp-for="Direccion" class="form-label fw-semibold"></label>
+                        <textarea asp-for="Direccion" class="form-control" rows="2" placeholder="Dirección completa de residencia" required></textarea>
+                        <span asp-validation-for="Direccion" class="text-danger small"></span>
+                    </div>
+                </div>
+            </div>
+
+            <!-- Padres / Encargados -->
+            <div class="card-custom mb-4">
+                <h5 class="card-title mb-4"><i class="bi bi-people me-2 text-info"></i>Padres / Encargados</h5>
+                <div class="row g-3">
+                    <div class="col-md-4">
+                        <label class="form-label fw-semibold">Padre <span class="text-danger">*</span></label>
+                        <div class="input-group">
+                            <input type="hidden" asp-for="PadreId" id="PadreId" required />
+                            <input type="text" id="PadreNombreDisplay" class="form-control" placeholder="Seleccionar..." readonly />
+                            <button type="button" class="btn btn-outline-primary" onclick="openParentModal('PADRE')">
+                                <i class="bi bi-search"></i>
+                            </button>
+                        </div>
+                        <span asp-validation-for="PadreId" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-4">
+                        <label class="form-label fw-semibold">Madre <span class="text-danger">*</span></label>
+                        <div class="input-group">
+                            <input type="hidden" asp-for="MadreId" id="MadreId" required />
+                            <input type="text" id="MadreNombreDisplay" class="form-control" placeholder="Seleccionar..." readonly />
+                            <button type="button" class="btn btn-outline-primary" onclick="openParentModal('MADRE')">
+                                <i class="bi bi-search"></i>
+                            </button>
+                        </div>
+                        <span asp-validation-for="MadreId" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-4">
+                        <label class="form-label fw-semibold">Encargado <span class="text-danger">*</span></label>
+                        <div class="input-group">
+                            <input type="hidden" asp-for="EncargadoId" id="EncargadoId" required />
+                            <input type="text" id="EncargadoNombreDisplay" class="form-control" placeholder="Seleccionar..." readonly />
+                            <button type="button" class="btn btn-outline-primary" onclick="openParentModal('ENCARGADO')">
+                                <i class="bi bi-search"></i>
+                            </button>
+                        </div>
+                        <span asp-validation-for="EncargadoId" class="text-danger small"></span>
+                    </div>
+                </div>
+            </div>
+
+            <div class="card-custom">
+                <h5 class="card-title mb-4"><i class="bi bi-telephone-outbound me-2 text-danger"></i>Contacto de Emergencia (Opcional)</h5>
+                <div class="row g-3">
+                    <div class="col-md-7">
+                        <label asp-for="ContactoEmergenciaNombre" class="form-label fw-semibold"></label>
+                        <input asp-for="ContactoEmergenciaNombre" class="form-control" placeholder="Nombre del responsable" />
+                        <span asp-validation-for="ContactoEmergenciaNombre" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-5">
+                        <label asp-for="ContactoEmergenciaTelefono" class="form-label fw-semibold"></label>
+                        <input asp-for="ContactoEmergenciaTelefono" class="form-control" placeholder="Teléfono de contacto" />
+                        <span asp-validation-for="ContactoEmergenciaTelefono" class="text-danger small"></span>
+                    </div>
+                </div>
+            </div>
+        </div>
+
+        <!-- Datos de Inscripción -->
+        <div class="col-md-4">
+            <div class="card-custom mb-4">
+                <h5 class="card-title mb-4"><i class="bi bi-clipboard-check me-2 text-success"></i>Inscripción</h5>
+                <div class="row g-3">
+                    <div class="col-md-12">
+                        <label asp-for="CodigoInscripcion" class="form-label fw-semibold"></label>
+                        <input asp-for="CodigoInscripcion" class="form-control fw-bold text-primary" placeholder="Generado automáticamente" disabled />
+                        <span class="text-muted extra-small">El código se generará al guardar.</span>
+                    </div>
+                    <div class="col-md-12">
+                        <label asp-for="FechaInscripcion" class="form-label fw-semibold"></label>
+                        <input asp-for="FechaInscripcion" class="form-control" type="date" required />
+                        <span asp-validation-for="FechaInscripcion" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-12">
+                        <label asp-for="NivelGrado" class="form-label fw-semibold"></label>
+                        <select asp-for="NivelGrado" class="form-select" required>
+                            <option value="">Seleccione grado...</option>
+                            <option value="NoEstudia">No estudia</option>
+                            <option value="Parvularia">Parvularia</option>
+                            <option value="Primer Ciclo">Primer Ciclo</option>
+                            <option value="Segundo Ciclo">Segundo Ciclo</option>
+                            <option value="Tercer Ciclo">Tercer Ciclo</option>
+                        </select>
+                        <span asp-validation-for="NivelGrado" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-12">
+                        <label asp-for="Estado" class="form-label fw-semibold"></label>
+                        <select asp-for="Estado" class="form-select" required>
+                            <option value="ACTIVO">Activo</option>
+                            <option value="INACTIVO">Inactivo</option>
+                            <option value="GRADUADO">Graduado</option>
+                        </select>
+                        <span asp-validation-for="Estado" class="text-danger small"></span>
+                    </div>
+                </div>
+            </div>
+
+            <div class="card-custom">
+                <h5 class="card-title mb-4"><i class="bi bi-heart-pulse me-2 text-warning"></i>Salud (Opcional)</h5>
+                <div class="col-md-12">
+                    <label asp-for="Alergias" class="form-label fw-semibold"></label>
+                    <textarea asp-for="Alergias" class="form-control" rows="3" placeholder="Detalle alergias o condiciones médicas..."></textarea>
+                    <span asp-validation-for="Alergias" class="text-danger small"></span>
+                </div>
+            </div>
+
+            <div class="mt-4 d-grid">
+                <button type="submit" class="btn btn-primary-custom btn-lg">
+                    <i class="bi bi-save me-2"></i>Guardar Expediente
+                </button>
+            </div>
+        </div>
+    </div>
+</form>
+
+<!-- Modal para Seleccionar/Crear Padre/Madre -->
+<div class="modal fade" id="parentModal" tabindex="-1" aria-labelledby="parentModalLabel" aria-hidden="true">
+    <div class="modal-dialog modal-lg">
+        <div class="modal-content">
+            <div class="modal-header bg-primary text-white">
+                <h5 class="modal-title" id="parentModalLabel">Seleccionar Persona</h5>
+                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
+            </div>
+            <div class="modal-body">
+                <ul class="nav nav-tabs mb-3" id="parentTabs" role="tablist">
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link active" id="search-tab" data-bs-toggle="tab" data-bs-target="#search-pane" type="button" role="tab">Buscar Existente</button>
+                    </li>
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link" id="create-tab" data-bs-toggle="tab" data-bs-target="#create-pane" type="button" role="tab">Crear Nuevo</button>
+                    </li>
+                </ul>
+                <div class="tab-content" id="parentTabsContent">
+                    <!-- Tab Buscar -->
+                    <div class="tab-pane fade show active" id="search-pane" role="tabpanel">
+                        <div class="mb-3">
+                            <div class="input-group">
+                                <input type="text" id="searchPersonaInput" class="form-control" placeholder="Buscar por nombre o DUI..." />
+                                <button class="btn btn-primary" type="button" onclick="searchPersonas()">
+                                    <i class="bi bi-search"></i>
+                                </button>
+                            </div>
+                        </div>
+                        <div id="searchResults" class="list-group">
+                            <!-- Resultados de búsqueda aquí -->
+                        </div>
+                    </div>
+                    <!-- Tab Crear -->
+                    <div class="tab-pane fade" id="create-pane" role="tabpanel">
+                        <form id="createPersonaForm">
+                            <div class="row g-3">
+                                <div class="col-md-6">
+                                    <label class="form-label">Nombres</label>
+                                    <input type="text" name="Nombres" class="form-control" required />
+                                </div>
+                                <div class="col-md-6">
+                                    <label class="form-label">Apellidos</label>
+                                    <input type="text" name="Apellidos" class="form-control" required />
+                                </div>
+                                <div class="col-md-6">
+                                    <label class="form-label">DUI</label>
+                                    <input type="text" name="Dui" class="form-control" placeholder="00000000-0" />
+                                </div>
+                                <div class="col-md-6">
+                                    <label class="form-label">Teléfono</label>
+                                    <input type="text" name="Telefono" class="form-control" placeholder="0000-0000" />
+                                </div>
+                                <div class="col-md-12 text-end">
+                                    <button type="button" class="btn btn-success" onclick="createPersona()">
+                                        <i class="bi bi-plus-circle me-2"></i>Crear y Seleccionar
+                                    </button>
+                                </div>
+                            </div>
+                        </form>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+@section Scripts {
+    @{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
+    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/toastify-js"></script>
+    
+    <script>
+        let currentParentType = '';
+
+        function showToast(message, type = 'success') {
+            Toastify({
+                text: message,
+                duration: 3000,
+                close: true,
+                gravity: "top",
+                position: "right",
+                stopOnFocus: true,
+                style: {
+                    background: type === 'success' ? "#28a745" : "#dc3545",
+                }
+            }).showToast();
+        }
+
+        function openParentModal(type) {
+            currentParentType = type;
+            let label = 'Seleccionar ';
+            if (type === 'PADRE') label += 'Padre';
+            else if (type === 'MADRE') label += 'Madre';
+            else label += 'Encargado';
+            
+            document.getElementById('parentModalLabel').innerText = label;
+            const modal = new bootstrap.Modal(document.getElementById('parentModal'));
+            modal.show();
+        }
+
+        async function searchPersonas() {
+            const term = document.getElementById('searchPersonaInput').value;
+            if (term.length < 3) {
+                showToast('Por favor ingrese al menos 3 caracteres', 'error');
+                return;
+            }
+
+            try {
+                const response = await fetch(`/Expediente/SearchPersonas?term=${encodeURIComponent(term)}&type=ENCARGADO`);
+                const data = await response.json();
+                
+                const resultsDiv = document.getElementById('searchResults');
+                resultsDiv.innerHTML = '';
+
+                if (data.length === 0) {
+                    resultsDiv.innerHTML = '<div class="list-group-item text-muted">No se encontraron resultados</div>';
+                    return;
+                }
+
+                data.forEach(p => {
+                    const btn = document.createElement('button');
+                    btn.type = 'button';
+                    btn.className = 'list-group-item list-group-item-action';
+                    btn.innerText = p.text;
+                    btn.onclick = () => selectPersona(p.id, p.text);
+                    resultsDiv.appendChild(btn);
+                });
+            } catch (error) {
+                showToast('Error al buscar personas', 'error');
+            }
+        }
+
+        function selectPersona(id, name) {
+            if (currentParentType === 'PADRE') {
+                document.getElementById('PadreId').value = id;
+                document.getElementById('PadreNombreDisplay').value = name;
+            } else if (currentParentType === 'MADRE') {
+                document.getElementById('MadreId').value = id;
+                document.getElementById('MadreNombreDisplay').value = name;
+            } else {
+                document.getElementById('EncargadoId').value = id;
+                document.getElementById('EncargadoNombreDisplay').value = name;
+            }
+            
+            const modalElement = document.getElementById('parentModal');
+            const modal = bootstrap.Modal.getInstance(modalElement);
+            modal.hide();
+            showToast('Persona seleccionada correctamente');
+        }
+
+        async function createPersona() {
+            const form = document.getElementById('createPersonaForm');
+            const formData = new FormData(form);
+            const persona = {};
+            formData.forEach((value, key) => persona[key] = value);
+
+            if (!persona.Nombres || !persona.Apellidos) {
+                showToast('Nombres y Apellidos son requeridos', 'error');
+                return;
+            }
+
+            try {
+                const response = await fetch('/Expediente/CreatePersona', {
+                    method: 'POST',
+                    headers: {
+                        'Content-Type': 'application/json',
+                        'RequestVerificationToken': document.querySelector('input[name="__RequestVerificationToken"]').value
+                    },
+                    body: JSON.stringify(persona)
+                });
+
+                const result = await response.json();
+                if (result.success) {
+                    selectPersona(result.id, result.text);
+                    form.reset();
+                    showToast('Persona creada y seleccionada');
+                } else {
+                    showToast(result.message || 'Error al crear la persona', 'error');
+                }
+            } catch (error) {
+                showToast('Error de conexión al crear persona', 'error');
+            }
+        }
+
+        function previewPhoto(input) {
+            if (input.files && input.files[0]) {
+                const reader = new FileReader();
+                reader.onload = function(e) {
+                    document.getElementById('previewImg').src = e.target.result;
+                };
+                reader.readAsDataURL(input.files[0]);
+                showToast('Foto seleccionada');
+            }
+        }
+
+        // Form validation with Toastify
+        document.getElementById('expedienteForm').addEventListener('submit', function(e) {
+            const form = this;
+            if (!form.checkValidity()) {
+                e.preventDefault();
+                e.stopPropagation();
+                showToast('Por favor complete todos los campos requeridos', 'error');
+            }
+            form.classList.add('was-validated');
+        });
+    </script>
+}
diff --git a/foundation_system/Views/Expediente/Details.cshtml b/foundation_system/Views/Expediente/Details.cshtml
new file mode 100644
index 0000000..ddd186f
--- /dev/null
+++ b/foundation_system/Views/Expediente/Details.cshtml
@@ -0,0 +1,188 @@
+@model foundation_system.Models.ViewModels.ExpedienteViewModel
+@{
+    ViewData["Title"] = "Detalles del Expediente";
+}
+
+@section Styles {
+    <style>
+        .gender-group {
+            display: flex;
+            gap: 20px;
+            padding: 8px 12px;
+            background: #f8f9fa;
+            border-radius: 8px;
+            border: 1px solid #dee2e6;
+        }
+        .photo-container {
+            width: 150px;
+            height: 150px;
+            margin: 0 auto 20px;
+            border-radius: 50%;
+            overflow: hidden;
+            border: 3px solid #dee2e6;
+            background: #f8f9fa;
+        }
+        .photo-container img {
+            width: 100%;
+            height: 100%;
+            object-fit: cover;
+        }
+        .info-label {
+            font-weight: 600;
+            color: #495057;
+            font-size: 0.9rem;
+            margin-bottom: 0.2rem;
+        }
+        .info-value {
+            padding: 0.5rem 0.75rem;
+            background-color: #f8f9fa;
+            border: 1px solid #e9ecef;
+            border-radius: 0.375rem;
+            min-height: 2.5rem;
+            display: flex;
+            align-items: center;
+        }
+    </style>
+}
+
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h2 class="mb-1">Detalles del Expediente</h2>
+        <p class="text-muted small mb-0">Información completa de: <strong>@Model.Nombres @Model.Apellidos</strong></p>
+    </div>
+    <div class="d-flex gap-2">
+        <a asp-action="Index" class="btn btn-outline-secondary">
+            <i class="bi bi-arrow-left me-2"></i>Volver
+        </a>
+        <a asp-action="Edit" asp-route-id="@Model.Id" class="btn btn-outline-primary">
+            <i class="bi bi-pencil me-2"></i>Editar
+        </a>
+        <a asp-action="Print" asp-route-id="@Model.Id" target="_blank" class="btn btn-primary">
+            <i class="bi bi-printer me-2"></i>Imprimir
+        </a>
+    </div>
+</div>
+
+<div class="row">
+    <!-- Datos Personales -->
+    <div class="col-md-8">
+        <div class="card-custom mb-4">
+            <h5 class="card-title mb-4"><i class="bi bi-person-vcard me-2 text-primary"></i>Datos Personales</h5>
+            <div class="row g-3">
+                <div class="col-md-12">
+                    <div class="text-center mb-4">
+                        <div class="photo-container">
+                            @if (!string.IsNullOrEmpty(Model.FotoUrl))
+                            {
+                                <img src="@Model.FotoUrl" alt="Foto de perfil" />
+                            }
+                            else
+                            {
+                                <img src="/Assets/default_avatar.png" alt="Foto de perfil" />
+                            }
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-6">
+                    <div class="info-label">Nombres</div>
+                    <div class="info-value">@Model.Nombres</div>
+                </div>
+                <div class="col-md-6">
+                    <div class="info-label">Apellidos</div>
+                    <div class="info-value">@Model.Apellidos</div>
+                </div>
+                <div class="col-md-6">
+                    <div class="info-label">Fecha de Nacimiento</div>
+                    <div class="info-value">@Model.FechaNacimiento?.ToString("dd/MM/yyyy")</div>
+                </div>
+                <div class="col-md-6">
+                    <div class="info-label">Género</div>
+                    <div class="info-value">@(Model.Genero == "M" ? "Masculino" : "Femenino")</div>
+                </div>
+                <div class="col-md-12">
+                    <div class="info-label">Dirección</div>
+                    <div class="info-value">@Model.Direccion</div>
+                </div>
+            </div>
+        </div>
+
+        <!-- Padres / Encargados -->
+        <div class="card-custom mb-4">
+            <h5 class="card-title mb-4"><i class="bi bi-people me-2 text-info"></i>Padres / Encargados</h5>
+            <div class="row g-3">
+                <div class="col-md-4">
+                    <div class="info-label">Padre</div>
+                    <div class="info-value">@(Model.PadreNombre ?? "No registrado")</div>
+                </div>
+                <div class="col-md-4">
+                    <div class="info-label">Madre</div>
+                    <div class="info-value">@(Model.MadreNombre ?? "No registrada")</div>
+                </div>
+                <div class="col-md-4">
+                    <div class="info-label">Encargado Principal</div>
+                    <div class="info-value">@(Model.EncargadoNombre ?? "No registrado")</div>
+                </div>
+            </div>
+        </div>
+
+        <div class="card-custom">
+            <h5 class="card-title mb-4"><i class="bi bi-telephone-outbound me-2 text-danger"></i>Contacto de Emergencia</h5>
+            <div class="row g-3">
+                <div class="col-md-7">
+                    <div class="info-label">Nombre del Responsable</div>
+                    <div class="info-value">@(Model.ContactoEmergenciaNombre ?? "No registrado")</div>
+                </div>
+                <div class="col-md-5">
+                    <div class="info-label">Teléfono de Contacto</div>
+                    <div class="info-value">@(Model.ContactoEmergenciaTelefono ?? "No registrado")</div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <!-- Datos de Inscripción -->
+    <div class="col-md-4">
+        <div class="card-custom mb-4">
+            <h5 class="card-title mb-4"><i class="bi bi-clipboard-check me-2 text-success"></i>Inscripción</h5>
+            <div class="row g-3">
+                <div class="col-md-12">
+                    <div class="info-label">Código de Inscripción</div>
+                    <div class="info-value fw-bold text-primary">@Model.CodigoInscripcion</div>
+                </div>
+                <div class="col-md-12">
+                    <div class="info-label">Fecha de Inscripción</div>
+                    <div class="info-value">@Model.FechaInscripcion.ToString("dd/MM/yyyy")</div>
+                </div>
+                <div class="col-md-12">
+                    <div class="info-label">Nivel / Grado</div>
+                    <div class="info-value">@Model.NivelGrado</div>
+                </div>
+                <div class="col-md-12">
+                    <div class="info-label">Estado</div>
+                    <div class="info-value">
+                        @if (Model.Estado == "ACTIVO")
+                        {
+                            <span class="badge bg-success">Activo</span>
+                        }
+                        else if (Model.Estado == "GRADUADO")
+                        {
+                            <span class="badge bg-primary">Graduado</span>
+                        }
+                        else
+                        {
+                            <span class="badge bg-danger">Inactivo</span>
+                        }
+                    </div>
+                </div>
+            </div>
+        </div>
+
+        <div class="card-custom">
+            <h5 class="card-title mb-4"><i class="bi bi-heart-pulse me-2 text-warning"></i>Salud</h5>
+            <div class="col-md-12">
+                <div class="info-label">Alergias / Condiciones</div>
+                <div class="info-value" style="min-height: 100px; align-items: flex-start;">@(Model.Alergias ?? "Ninguna registrada")</div>
+            </div>
+        </div>
+    </div>
+</div>
diff --git a/foundation_system/Views/Expediente/Edit.cshtml b/foundation_system/Views/Expediente/Edit.cshtml
new file mode 100644
index 0000000..fef8118
--- /dev/null
+++ b/foundation_system/Views/Expediente/Edit.cshtml
@@ -0,0 +1,473 @@
+@model foundation_system.Models.ViewModels.ExpedienteViewModel
+@{
+    ViewData["Title"] = "Editar Expediente";
+}
+
+@section Styles {
+    <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/npm/toastify-js/src/toastify.min.css">
+    <style>
+        .gender-group {
+            display: flex;
+            gap: 20px;
+            padding: 8px 12px;
+            background: #f8f9fa;
+            border-radius: 8px;
+            border: 1px solid #dee2e6;
+        }
+        .gender-option {
+            display: flex;
+            align-items: center;
+            gap: 8px;
+            cursor: pointer;
+        }
+        .gender-option input {
+            cursor: pointer;
+        }
+        .photo-upload-container {
+            position: relative;
+            width: 150px;
+            height: 150px;
+            margin: 0 auto 20px;
+            border-radius: 50%;
+            overflow: hidden;
+            border: 3px solid #dee2e6;
+            background: #f8f9fa;
+            cursor: pointer;
+            transition: all 0.3s ease;
+        }
+        .photo-upload-container:hover {
+            border-color: #0d6efd;
+            opacity: 0.8;
+        }
+        .photo-upload-container img {
+            width: 100%;
+            height: 100%;
+            object-fit: cover;
+        }
+        .photo-upload-container .upload-overlay {
+            position: absolute;
+            bottom: 0;
+            left: 0;
+            right: 0;
+            background: rgba(0,0,0,0.5);
+            color: white;
+            text-align: center;
+            padding: 5px 0;
+            font-size: 12px;
+            opacity: 0;
+            transition: opacity 0.3s ease;
+        }
+        .photo-upload-container:hover .upload-overlay {
+            opacity: 1;
+        }
+        .photo-placeholder {
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            height: 100%;
+            font-size: 60px;
+            color: #adb5bd;
+        }
+    </style>
+}
+
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h2 class="mb-1">Editar Expediente</h2>
+        <p class="text-muted small mb-0">Actualice la información del niño(a): <strong>@Model.Nombres @Model.Apellidos</strong></p>
+    </div>
+    <a asp-action="Index" class="btn btn-outline-secondary">
+        <i class="bi bi-arrow-left me-2"></i>Volver al Listado
+    </a>
+</div>
+
+<form asp-action="Edit" method="post" id="expedienteForm" enctype="multipart/form-data">
+    @Html.AntiForgeryToken()
+    <input type="hidden" asp-for="Id" />
+    <div asp-validation-summary="ModelOnly" class="text-danger mb-3"></div>
+
+    <div class="row">
+        <!-- Datos Personales -->
+        <div class="col-md-8">
+            <div class="card-custom mb-4">
+                <h5 class="card-title mb-4"><i class="bi bi-person-vcard me-2 text-primary"></i>Datos Personales</h5>
+                <div class="row g-3">
+                    <div class="col-md-12">
+                        <div class="text-center mb-4">
+                            <input type="hidden" asp-for="FotoUrl" id="FotoUrl" />
+                            <input asp-for="FotoFile" type="file" id="photoInput" style="display: none;" accept="image/*" onchange="previewPhoto(this)" />
+                            <div class="photo-upload-container" onclick="document.getElementById('photoInput').click()">
+                                <div id="photoPreview">
+                                    @if (!string.IsNullOrEmpty(Model.FotoUrl))
+                                    {
+                                        <img src="@Model.FotoUrl" alt="Foto de perfil" id="previewImg" />
+                                    }
+                                    else
+                                    {
+                                        <img src="/Assets/default_avatar.png" alt="Foto de perfil" id="previewImg" />
+                                    }
+                                </div>
+                                <div class="upload-overlay">
+                                    <i class="bi bi-camera"></i> Cambiar Foto
+                                </div>
+                            </div>
+                            <p class="text-muted small">Haga clic para cambiar la foto</p>
+                        </div>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Nombres" class="form-label fw-semibold"></label>
+                        <input asp-for="Nombres" class="form-control" placeholder="Ej. Juan Alberto" required />
+                        <span asp-validation-for="Nombres" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Apellidos" class="form-label fw-semibold"></label>
+                        <input asp-for="Apellidos" class="form-control" placeholder="Ej. Pérez García" required />
+                        <span asp-validation-for="Apellidos" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="FechaNacimiento" class="form-label fw-semibold"></label>
+                        <input asp-for="FechaNacimiento" class="form-control" type="date" required />
+                        <span asp-validation-for="FechaNacimiento" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Genero" class="form-label fw-semibold"></label>
+                        <div class="gender-group">
+                            <label class="gender-option">
+                                <input type="radio" asp-for="Genero" value="M" required />
+                                <span>Masculino</span>
+                            </label>
+                            <label class="gender-option">
+                                <input type="radio" asp-for="Genero" value="F" required />
+                                <span>Femenino</span>
+                            </label>
+                        </div>
+                        <span asp-validation-for="Genero" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-12">
+                        <label asp-for="Direccion" class="form-label fw-semibold"></label>
+                        <textarea asp-for="Direccion" class="form-control" rows="2" placeholder="Dirección completa de residencia" required></textarea>
+                        <span asp-validation-for="Direccion" class="text-danger small"></span>
+                    </div>
+                </div>
+            </div>
+
+            <!-- Padres / Encargados -->
+            <div class="card-custom mb-4">
+                <h5 class="card-title mb-4"><i class="bi bi-people me-2 text-info"></i>Padres / Encargados</h5>
+                <div class="row g-3">
+                    <div class="col-md-4">
+                        <label class="form-label fw-semibold">Padre <span class="text-danger">*</span></label>
+                        <div class="input-group">
+                            <input type="hidden" asp-for="PadreId" id="PadreId" required />
+                            <input type="text" id="PadreNombreDisplay" class="form-control" value="@Model.PadreNombre" placeholder="Seleccionar..." readonly />
+                            <button type="button" class="btn btn-outline-primary" onclick="openParentModal('PADRE')">
+                                <i class="bi bi-search"></i>
+                            </button>
+                        </div>
+                        <span asp-validation-for="PadreId" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-4">
+                        <label class="form-label fw-semibold">Madre <span class="text-danger">*</span></label>
+                        <div class="input-group">
+                            <input type="hidden" asp-for="MadreId" id="MadreId" required />
+                            <input type="text" id="MadreNombreDisplay" class="form-control" value="@Model.MadreNombre" placeholder="Seleccionar..." readonly />
+                            <button type="button" class="btn btn-outline-primary" onclick="openParentModal('MADRE')">
+                                <i class="bi bi-search"></i>
+                            </button>
+                        </div>
+                        <span asp-validation-for="MadreId" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-4">
+                        <label class="form-label fw-semibold">Encargado <span class="text-danger">*</span></label>
+                        <div class="input-group">
+                            <input type="hidden" asp-for="EncargadoId" id="EncargadoId" required />
+                            <input type="text" id="EncargadoNombreDisplay" class="form-control" value="@Model.EncargadoNombre" placeholder="Seleccionar..." readonly />
+                            <button type="button" class="btn btn-outline-primary" onclick="openParentModal('ENCARGADO')">
+                                <i class="bi bi-search"></i>
+                            </button>
+                        </div>
+                        <span asp-validation-for="EncargadoId" class="text-danger small"></span>
+                    </div>
+                </div>
+            </div>
+
+            <div class="card-custom">
+                <h5 class="card-title mb-4"><i class="bi bi-telephone-outbound me-2 text-danger"></i>Contacto de Emergencia (Opcional)</h5>
+                <div class="row g-3">
+                    <div class="col-md-7">
+                        <label asp-for="ContactoEmergenciaNombre" class="form-label fw-semibold"></label>
+                        <input asp-for="ContactoEmergenciaNombre" class="form-control" placeholder="Nombre del responsable" />
+                        <span asp-validation-for="ContactoEmergenciaNombre" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-5">
+                        <label asp-for="ContactoEmergenciaTelefono" class="form-label fw-semibold"></label>
+                        <input asp-for="ContactoEmergenciaTelefono" class="form-control" placeholder="Teléfono de contacto" />
+                        <span asp-validation-for="ContactoEmergenciaTelefono" class="text-danger small"></span>
+                    </div>
+                </div>
+            </div>
+        </div>
+
+        <!-- Datos de Inscripción -->
+        <div class="col-md-4">
+            <div class="card-custom mb-4">
+                <h5 class="card-title mb-4"><i class="bi bi-clipboard-check me-2 text-success"></i>Inscripción</h5>
+                <div class="row g-3">
+                    <div class="col-md-12">
+                        <label asp-for="CodigoInscripcion" class="form-label fw-semibold"></label>
+                        <input asp-for="CodigoInscripcion" class="form-control fw-bold text-muted" readonly />
+                        <span class="text-muted extra-small">El código de expediente no es editable.</span>
+                    </div>
+                    <div class="col-md-12">
+                        <label asp-for="FechaInscripcion" class="form-label fw-semibold"></label>
+                        <input asp-for="FechaInscripcion" class="form-control" type="date" required />
+                        <span asp-validation-for="FechaInscripcion" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-12">
+                        <label asp-for="NivelGrado" class="form-label fw-semibold"></label>
+                        <select asp-for="NivelGrado" class="form-select" required>
+                            <option value="">Seleccione grado...</option>
+                            <option value="NoEstudia">No estudia</option>
+                            <option value="Parvularia">Parvularia</option>
+                            <option value="Primer Ciclo">Primer Ciclo</option>
+                            <option value="Segundo Ciclo">Segundo Ciclo</option>
+                            <option value="Tercer Ciclo">Tercer Ciclo</option>
+                        </select>
+                        <span asp-validation-for="NivelGrado" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-12">
+                        <label asp-for="Estado" class="form-label fw-semibold"></label>
+                        <select asp-for="Estado" class="form-select" required>
+                            <option value="ACTIVO">Activo</option>
+                            <option value="INACTIVO">Inactivo</option>
+                            <option value="GRADUADO">Graduado</option>
+                        </select>
+                        <span asp-validation-for="Estado" class="text-danger small"></span>
+                    </div>
+                </div>
+            </div>
+
+            <div class="card-custom">
+                <h5 class="card-title mb-4"><i class="bi bi-heart-pulse me-2 text-warning"></i>Salud (Opcional)</h5>
+                <div class="col-md-12">
+                    <label asp-for="Alergias" class="form-label fw-semibold"></label>
+                    <textarea asp-for="Alergias" class="form-control" rows="3" placeholder="Detalle alergias o condiciones médicas..."></textarea>
+                    <span asp-validation-for="Alergias" class="text-danger small"></span>
+                </div>
+            </div>
+
+            <div class="mt-4 d-grid">
+                <button type="submit" class="btn btn-primary-custom btn-lg">
+                    <i class="bi bi-check2-circle me-2"></i>Actualizar Expediente
+                </button>
+            </div>
+        </div>
+    </div>
+</form>
+
+<!-- Modal para Seleccionar/Crear Padre/Madre -->
+<div class="modal fade" id="parentModal" tabindex="-1" aria-labelledby="parentModalLabel" aria-hidden="true">
+    <div class="modal-dialog modal-lg">
+        <div class="modal-content">
+            <div class="modal-header bg-primary text-white">
+                <h5 class="modal-title" id="parentModalLabel">Seleccionar Persona</h5>
+                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
+            </div>
+            <div class="modal-body">
+                <ul class="nav nav-tabs mb-3" id="parentTabs" role="tablist">
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link active" id="search-tab" data-bs-toggle="tab" data-bs-target="#search-pane" type="button" role="tab">Buscar Existente</button>
+                    </li>
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link" id="create-tab" data-bs-toggle="tab" data-bs-target="#create-pane" type="button" role="tab">Crear Nuevo</button>
+                    </li>
+                </ul>
+                <div class="tab-content" id="parentTabsContent">
+                    <!-- Tab Buscar -->
+                    <div class="tab-pane fade show active" id="search-pane" role="tabpanel">
+                        <div class="mb-3">
+                            <div class="input-group">
+                                <input type="text" id="searchPersonaInput" class="form-control" placeholder="Buscar por nombre o DUI..." />
+                                <button class="btn btn-primary" type="button" onclick="searchPersonas()">
+                                    <i class="bi bi-search"></i>
+                                </button>
+                            </div>
+                        </div>
+                        <div id="searchResults" class="list-group">
+                            <!-- Resultados de búsqueda aquí -->
+                        </div>
+                    </div>
+                    <!-- Tab Crear -->
+                    <div class="tab-pane fade" id="create-pane" role="tabpanel">
+                        <form id="createPersonaForm">
+                            <div class="row g-3">
+                                <div class="col-md-6">
+                                    <label class="form-label">Nombres</label>
+                                    <input type="text" name="Nombres" class="form-control" required />
+                                </div>
+                                <div class="col-md-6">
+                                    <label class="form-label">Apellidos</label>
+                                    <input type="text" name="Apellidos" class="form-control" required />
+                                </div>
+                                <div class="col-md-6">
+                                    <label class="form-label">DUI</label>
+                                    <input type="text" name="Dui" class="form-control" placeholder="00000000-0" />
+                                </div>
+                                <div class="col-md-6">
+                                    <label class="form-label">Teléfono</label>
+                                    <input type="text" name="Telefono" class="form-control" placeholder="0000-0000" />
+                                </div>
+                                <div class="col-md-12 text-end">
+                                    <button type="button" class="btn btn-success" onclick="createPersona()">
+                                        <i class="bi bi-plus-circle me-2"></i>Crear y Seleccionar
+                                    </button>
+                                </div>
+                            </div>
+                        </form>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+@section Scripts {
+    @{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
+    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/toastify-js"></script>
+    
+    <script>
+        let currentParentType = '';
+
+        function showToast(message, type = 'success') {
+            Toastify({
+                text: message,
+                duration: 3000,
+                close: true,
+                gravity: "top",
+                position: "right",
+                stopOnFocus: true,
+                style: {
+                    background: type === 'success' ? "#28a745" : "#dc3545",
+                }
+            }).showToast();
+        }
+
+        function openParentModal(type) {
+            currentParentType = type;
+            let label = 'Seleccionar ';
+            if (type === 'PADRE') label += 'Padre';
+            else if (type === 'MADRE') label += 'Madre';
+            else label += 'Encargado';
+            
+            document.getElementById('parentModalLabel').innerText = label;
+            const modal = new bootstrap.Modal(document.getElementById('parentModal'));
+            modal.show();
+        }
+
+        async function searchPersonas() {
+            const term = document.getElementById('searchPersonaInput').value;
+            if (term.length < 3) {
+                showToast('Por favor ingrese al menos 3 caracteres', 'error');
+                return;
+            }
+
+            try {
+                const response = await fetch(`/Expediente/SearchPersonas?term=${encodeURIComponent(term)}&type=ENCARGADO`);
+                const data = await response.json();
+                
+                const resultsDiv = document.getElementById('searchResults');
+                resultsDiv.innerHTML = '';
+
+                if (data.length === 0) {
+                    resultsDiv.innerHTML = '<div class="list-group-item text-muted">No se encontraron resultados</div>';
+                    return;
+                }
+
+                data.forEach(p => {
+                    const btn = document.createElement('button');
+                    btn.type = 'button';
+                    btn.className = 'list-group-item list-group-item-action';
+                    btn.innerText = p.text;
+                    btn.onclick = () => selectPersona(p.id, p.text);
+                    resultsDiv.appendChild(btn);
+                });
+            } catch (error) {
+                showToast('Error al buscar personas', 'error');
+            }
+        }
+
+        function selectPersona(id, name) {
+            if (currentParentType === 'PADRE') {
+                document.getElementById('PadreId').value = id;
+                document.getElementById('PadreNombreDisplay').value = name;
+            } else if (currentParentType === 'MADRE') {
+                document.getElementById('MadreId').value = id;
+                document.getElementById('MadreNombreDisplay').value = name;
+            } else {
+                document.getElementById('EncargadoId').value = id;
+                document.getElementById('EncargadoNombreDisplay').value = name;
+            }
+            
+            const modalElement = document.getElementById('parentModal');
+            const modal = bootstrap.Modal.getInstance(modalElement);
+            modal.hide();
+            showToast('Persona seleccionada correctamente');
+        }
+
+        async function createPersona() {
+            const form = document.getElementById('createPersonaForm');
+            const formData = new FormData(form);
+            const persona = {};
+            formData.forEach((value, key) => persona[key] = value);
+
+            if (!persona.Nombres || !persona.Apellidos) {
+                showToast('Nombres y Apellidos son requeridos', 'error');
+                return;
+            }
+
+            try {
+                const response = await fetch('/Expediente/CreatePersona', {
+                    method: 'POST',
+                    headers: {
+                        'Content-Type': 'application/json',
+                        'RequestVerificationToken': document.querySelector('input[name="__RequestVerificationToken"]').value
+                    },
+                    body: JSON.stringify(persona)
+                });
+
+                const result = await response.json();
+                if (result.success) {
+                    selectPersona(result.id, result.text);
+                    form.reset();
+                    showToast('Persona creada y seleccionada');
+                } else {
+                    showToast(result.message || 'Error al crear la persona', 'error');
+                }
+            } catch (error) {
+                showToast('Error de conexión al crear persona', 'error');
+            }
+        }
+
+        function previewPhoto(input) {
+            if (input.files && input.files[0]) {
+                const reader = new FileReader();
+                reader.onload = function(e) {
+                    document.getElementById('previewImg').src = e.target.result;
+                };
+                reader.readAsDataURL(input.files[0]);
+                showToast('Foto seleccionada');
+            }
+        }
+
+        // Form validation with Toastify
+        document.getElementById('expedienteForm').addEventListener('submit', function(e) {
+            const form = this;
+            if (!form.checkValidity()) {
+                e.preventDefault();
+                e.stopPropagation();
+                showToast('Por favor complete todos los campos requeridos', 'error');
+            }
+            form.classList.add('was-validated');
+        });
+    </script>
+}
diff --git a/foundation_system/Views/Expediente/Index.cshtml b/foundation_system/Views/Expediente/Index.cshtml
new file mode 100644
index 0000000..9c43827
--- /dev/null
+++ b/foundation_system/Views/Expediente/Index.cshtml
@@ -0,0 +1,172 @@
+@model IEnumerable<foundation_system.Models.Nino>
+@{
+    ViewData["Title"] = "Expedientes de Niños";
+}
+
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h2 class="mb-1">Expedientes</h2>
+        <p class="text-muted small mb-0">Gestión de registros y expedientes de los niños de la fundación.</p>
+    </div>
+    <a asp-action="Create" class="btn btn-primary-custom">
+        <i class="bi bi-person-plus-fill me-2"></i>Nuevo Expediente
+    </a>
+</div>
+
+<div class="card-custom mb-4">
+    <form asp-action="Index" method="get" class="row g-3 align-items-center">
+        <div class="col-md-10">
+            <div class="input-group">
+                <span class="input-group-text bg-white border-end-0">
+                    <i class="bi bi-search text-muted"></i>
+                </span>
+                <input type="text" name="search" class="form-control border-start-0 ps-0" 
+                       placeholder="Buscar por código, nombre o DUI..." value="@ViewBag.Search" />
+            </div>
+        </div>
+        <div class="col-md-2 d-grid">
+            <button type="submit" class="btn btn-primary">Buscar</button>
+        </div>
+    </form>
+</div>
+
+<div class="card-custom">
+    <div class="table-responsive">
+        <table class="table-custom">
+            <thead>
+                <tr>
+                    <th>Código</th>
+                    <th>Nombre Completo</th>
+                    <th>Edad</th>
+                    <th>Grado/Nivel</th>
+                    <th>Fecha Inscripción</th>
+                    <th>Estado</th>
+                    <th>Acciones</th>
+                </tr>
+            </thead>
+            <tbody>
+                @if (!Model.Any())
+                {
+                    <tr>
+                        <td colspan="6" class="text-center py-4 text-muted">No hay expedientes registrados.</td>
+                    </tr>
+                }
+                @foreach (var item in Model)
+                {
+                    <tr>
+                        <td class="fw-bold">@item.CodigoInscripcion</td>
+                        <td>@item.Persona.NombreCompleto</td>
+                        <td>
+                            @{
+                                if (item.Persona.FechaNacimiento.HasValue)
+                                {
+                                    var today = DateOnly.FromDateTime(DateTime.Now);
+                                    var age = today.Year - item.Persona.FechaNacimiento.Value.Year;
+                                    if (item.Persona.FechaNacimiento.Value > today.AddYears(-age)) age--;
+                                    @age @(age == 1 ? "año" : "años")
+                                }
+                                else
+                                {
+                                    <span class="text-muted">N/A</span>
+                                }
+                            }
+                        </td>
+                        <td>@item.NivelGrado</td>
+                        <td>@item.FechaInscripcion.ToShortDateString()</td>
+                        <td>
+                            <span class="badge @(item.Estado == "ACTIVO" ? "bg-success" : "bg-secondary")">
+                                @item.Estado
+                            </span>
+                        </td>
+                        <td>
+                            <div class="btn-group">
+                                <a asp-action="Details" asp-route-id="@item.Id" class="btn btn-sm btn-outline-info" title="Ver Detalle">
+                                    <i class="bi bi-eye"></i>
+                                </a>
+                                <a asp-action="Edit" asp-route-id="@item.Id" class="btn btn-sm btn-outline-secondary" title="Editar">
+                                    <i class="bi bi-pencil"></i>
+                                </a>
+                                <button type="button" class="btn btn-sm btn-outline-danger" title="Desactivar" 
+                                        onclick="confirmarDesactivacion(@item.Id, '@item.Persona.NombreCompleto')">
+                                    <i class="bi bi-trash"></i>
+                                </button>
+                            </div>
+                        </td>
+                    </tr>
+                }
+            </tbody>
+        </table>
+    </div>
+
+    @if (ViewBag.TotalPages > 1)
+    {
+        <div class="d-flex justify-content-between align-items-center mt-4">
+            <div class="text-muted small">
+                Mostrando página @ViewBag.CurrentPage de @ViewBag.TotalPages
+            </div>
+            <nav aria-label="Page navigation">
+                <ul class="pagination pagination-sm mb-0">
+                    <li class="page-item @(!ViewBag.HasPreviousPage ? "disabled" : "")">
+                        <a class="page-link" asp-action="Index" 
+                           asp-route-page="@(ViewBag.CurrentPage - 1)" 
+                           asp-route-search="@ViewBag.Search">
+                            <i class="bi bi-chevron-left"></i>
+                        </a>
+                    </li>
+
+                    @for (int i = 1; i <= ViewBag.TotalPages; i++)
+                    {
+                        <li class="page-item @(i == ViewBag.CurrentPage ? "active" : "")">
+                            <a class="page-link" asp-action="Index" 
+                               asp-route-page="@i" 
+                               asp-route-search="@ViewBag.Search">@i</a>
+                        </li>
+                    }
+
+                    <li class="page-item @(!ViewBag.HasNextPage ? "disabled" : "")">
+                        <a class="page-link" asp-action="Index" 
+                           asp-route-page="@(ViewBag.CurrentPage + 1)" 
+                           asp-route-search="@ViewBag.Search">
+                            <i class="bi bi-chevron-right"></i>
+                        </a>
+                    </li>
+                </ul>
+            </nav>
+        </div>
+    }
+</div>
+
+<!-- Modal de Confirmación -->
+<div class="modal fade" id="modalDesactivar" tabindex="-1">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title">Confirmar Desactivación</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body">
+                ¿Está seguro que desea desactivar el expediente de <strong id="nombreNino"></strong>?
+                <p class="text-muted small mt-2">Esta acción cambiará el estado a INACTIVO y no aparecerá en el listado principal.</p>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancelar</button>
+                <form id="formDesactivar" asp-action="Desactivar" method="post">
+                    @Html.AntiForgeryToken()
+                    <input type="hidden" name="id" id="ninoIdDesactivar" />
+                    <button type="submit" class="btn btn-danger">Desactivar</button>
+                </form>
+            </div>
+        </div>
+    </div>
+</div>
+
+@section Scripts {
+    <script>
+        function confirmarDesactivacion(id, nombre) {
+            document.getElementById('nombreNino').innerText = nombre;
+            document.getElementById('ninoIdDesactivar').value = id;
+            new bootstrap.Modal(document.getElementById('modalDesactivar')).show();
+        }
+    </script>
+}
+
diff --git a/foundation_system/Views/Expediente/Print.cshtml b/foundation_system/Views/Expediente/Print.cshtml
new file mode 100644
index 0000000..ba200db
--- /dev/null
+++ b/foundation_system/Views/Expediente/Print.cshtml
@@ -0,0 +1,232 @@
+@model foundation_system.Models.ViewModels.ExpedienteViewModel
+@{
+    Layout = null;
+    var antecedentes = ViewBag.Antecedentes as List<foundation_system.Models.AntecedenteNino>;
+}
+
+<!DOCTYPE html>
+<html lang="es">
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Imprimir Expediente - @Model.CodigoInscripcion</title>
+    <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css" />
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.0/font/bootstrap-icons.css">
+    <style>
+        @@media print {
+            .no-print { display: none !important; }
+            body { padding: 0; margin: 0; }
+            .container { width: 100% !important; max-width: none !important; }
+            .card { border: none !important; }
+            .badge { border: 1px solid #000; color: #000 !important; background: none !important; }
+        }
+        body {
+            background-color: white;
+            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+        }
+        .print-header {
+            border-bottom: 2px solid #0d6efd;
+            margin-bottom: 2rem;
+            padding-bottom: 1rem;
+        }
+        .photo-box {
+            width: 120px;
+            height: 120px;
+            border: 2px solid #dee2e6;
+            border-radius: 8px;
+            overflow: hidden;
+        }
+        .photo-box img {
+            width: 100%;
+            height: 100%;
+            object-fit: cover;
+        }
+        .section-title {
+            background-color: #f8f9fa;
+            padding: 0.5rem 1rem;
+            border-left: 4px solid #0d6efd;
+            margin-top: 1.5rem;
+            margin-bottom: 1rem;
+            font-weight: bold;
+            text-transform: uppercase;
+            font-size: 0.9rem;
+        }
+        .info-grid {
+            display: grid;
+            grid-template-columns: repeat(2, 1fr);
+            gap: 1rem;
+        }
+        .info-item {
+            margin-bottom: 0.5rem;
+        }
+        .info-label {
+            font-weight: 600;
+            font-size: 0.8rem;
+            color: #6c757d;
+            display: block;
+        }
+        .info-value {
+            font-size: 1rem;
+            color: #212529;
+        }
+        .table-antecedentes {
+            font-size: 0.85rem;
+        }
+    </style>
+</head>
+<body>
+    <div class="container my-4">
+        <div class="no-print text-end mb-4">
+            <button onclick="window.print()" class="btn btn-primary">
+                <i class="bi bi-printer me-2"></i>Imprimir Ahora
+            </button>
+            <button onclick="window.close()" class="btn btn-outline-secondary">
+                <i class="bi bi-x-lg me-2"></i>Cerrar
+            </button>
+        </div>
+
+        <div class="print-header d-flex justify-content-between align-items-center">
+            <div>
+                <h1 class="h3 mb-0 text-primary">EXPEDIENTE</h1>
+                <p class="text-muted mb-0">Fundación MIES - Sistema de Gestión</p>
+            </div>
+            <div class="text-end">
+                <div class="fw-bold">Código: @Model.CodigoInscripcion</div>
+                <div class="small text-muted">Fecha Impresión: @DateTime.Now.ToString("dd/MM/yyyy HH:mm")</div>
+            </div>
+        </div>
+
+        <div class="row">
+            <div class="col-3">
+                <div class="photo-box mx-auto">
+                    @if (!string.IsNullOrEmpty(Model.FotoUrl))
+                    {
+                        <img src="@Model.FotoUrl" alt="Foto" />
+                    }
+                    else
+                    {
+                        <img src="/Assets/default_avatar.png" alt="Foto" />
+                    }
+                </div>
+                <div class="text-center mt-2">
+                    <span class="badge @(Model.Estado == "ACTIVO" ? "bg-success" : "bg-secondary")">
+                        @Model.Estado
+                    </span>
+                </div>
+            </div>
+            <div class="col-9">
+                <div class="section-title">Información Personal</div>
+                <div class="info-grid">
+                    <div class="info-item">
+                        <span class="info-label">Nombres</span>
+                        <span class="info-value">@Model.Nombres</span>
+                    </div>
+                    <div class="info-item">
+                        <span class="info-label">Apellidos</span>
+                        <span class="info-value">@Model.Apellidos</span>
+                    </div>
+                    <div class="info-item">
+                        <span class="info-label">Fecha de Nacimiento</span>
+                        <span class="info-value">@Model.FechaNacimiento?.ToString("dd/MM/yyyy")</span>
+                    </div>
+                    <div class="info-item">
+                        <span class="info-label">Género</span>
+                        <span class="info-value">@(Model.Genero == "M" ? "Masculino" : "Femenino")</span>
+                    </div>
+                    <div class="info-item" style="grid-column: span 2;">
+                        <span class="info-label">Dirección</span>
+                        <span class="info-value">@Model.Direccion</span>
+                    </div>
+                </div>
+            </div>
+        </div>
+
+        <div class="row">
+            <div class="col-6">
+                <div class="section-title">Padres y Encargados</div>
+                <div class="info-item">
+                    <span class="info-label">Padre</span>
+                    <span class="info-value">@(Model.PadreNombre ?? "N/A")</span>
+                </div>
+                <div class="info-item">
+                    <span class="info-label">Madre</span>
+                    <span class="info-value">@(Model.MadreNombre ?? "N/A")</span>
+                </div>
+                <div class="info-item">
+                    <span class="info-label">Encargado Principal</span>
+                    <span class="info-value">@(Model.EncargadoNombre ?? "N/A")</span>
+                </div>
+            </div>
+            <div class="col-6">
+                <div class="section-title">Inscripción y Salud</div>
+                <div class="info-item">
+                    <span class="info-label">Fecha de Inscripción</span>
+                    <span class="info-value">@Model.FechaInscripcion.ToString("dd/MM/yyyy")</span>
+                </div>
+                <div class="info-item">
+                    <span class="info-label">Nivel / Grado</span>
+                    <span class="info-value">@Model.NivelGrado</span>
+                </div>
+                <div class="info-item">
+                    <span class="info-label">Alergias / Condiciones</span>
+                    <span class="info-value">@(Model.Alergias ?? "Ninguna")</span>
+                </div>
+            </div>
+        </div>
+
+        <div class="section-title">Historial de Antecedentes</div>
+        @if (antecedentes != null && antecedentes.Any())
+        {
+            <table class="table table-bordered table-sm table-antecedentes">
+                <thead class="table-light">
+                    <tr>
+                        <th>Fecha</th>
+                        <th>Tipo</th>
+                        <th>Descripción</th>
+                        <th>Gravedad</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    @foreach (var item in antecedentes)
+                    {
+                        <tr>
+                            <td>@item.FechaIncidente.ToString("dd/MM/yyyy")</td>
+                            <td>@item.TipoAntecedente</td>
+                            <td>@item.Descripcion</td>
+                            <td>
+                                <span class="badge @(item.Gravedad == "Alta" ? "bg-danger" : item.Gravedad == "Media" ? "bg-warning text-dark" : "bg-info text-dark")">
+                                    @item.Gravedad
+                                </span>
+                            </td>
+                        </tr>
+                    }
+                </tbody>
+            </table>
+        }
+        else
+        {
+            <p class="text-muted italic">No se registran antecedentes para este niño(a).</p>
+        }
+
+        <div class="mt-5 pt-5">
+            <div class="row text-center">
+                <div class="col-4">
+                    <div style="border-top: 1px solid #000; width: 80%; margin: 0 auto;"></div>
+                    <div class="small">Firma del Encargado</div>
+                </div>
+                <div class="col-4">
+                    <div style="border-top: 1px solid #000; width: 80%; margin: 0 auto;"></div>
+                    <div class="small">Firma Director(a)</div>
+                </div>
+                <div class="col-4">
+                    <div style="border-top: 1px solid #000; width: 80%; margin: 0 auto;"></div>
+                    <div class="small">Sello de la Fundación</div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <script src="~/lib/jquery/dist/jquery.min.js"></script>
+    <script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
+</body>
+</html>
diff --git a/foundation_system/Views/Shared/_Layout.cshtml b/foundation_system/Views/Shared/_Layout.cshtml
index ed2a00a..9c6fc5a 100644
--- a/foundation_system/Views/Shared/_Layout.cshtml
+++ b/foundation_system/Views/Shared/_Layout.cshtml
@@ -6,6 +6,8 @@
     <title>@ViewData["Title"] - MIES</title>
     <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css"/>
     <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/latest/toastr.min.css">
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
@@ -35,6 +37,9 @@
                 <a class="nav-link-custom @(ViewContext.RouteData.Values["controller"]?.ToString() == "Asistencia" ? "active" : "")" asp-controller="Asistencia" asp-action="Index">
                     <i class="bi bi-calendar-check"></i> Asistencia
                 </a>
+                <a class="nav-link-custom @(ViewContext.RouteData.Values["controller"]?.ToString() == "Antecedentes" ? "active" : "")" asp-controller="Antecedentes" asp-action="Index">
+                    <i class="bi bi-journal-text"></i> Antecedentes
+                </a>
                 
                 <div class="nav-section-title">Administración</div>
                 <a class="nav-link-custom @(ViewContext.RouteData.Values["controller"]?.ToString() == "Usuario" ? "active" : "")" asp-controller="Usuario" asp-action="Index">
@@ -79,6 +84,7 @@
 
     <script src="~/lib/jquery/dist/jquery.min.js"></script>
     <script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/latest/toastr.min.js"></script>
     <script src="~/js/site.js" asp-append-version="true"></script>
     @await RenderSectionAsync("Scripts", required: false)
 </body>
diff --git a/foundation_system/Views/Usuario/Create.cshtml b/foundation_system/Views/Usuario/Create.cshtml
new file mode 100644
index 0000000..41a695a
--- /dev/null
+++ b/foundation_system/Views/Usuario/Create.cshtml
@@ -0,0 +1,78 @@
+@model foundation_system.Models.ViewModels.UsuarioViewModel
+@{
+    ViewData["Title"] = "Nuevo Usuario";
+}
+
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h2 class="mb-1">Nuevo Usuario</h2>
+        <p class="text-muted small mb-0">Cree una nueva cuenta de acceso administrativo.</p>
+    </div>
+    <a asp-action="Index" class="btn btn-outline-secondary">
+        <i class="bi bi-arrow-left me-2"></i>Volver
+    </a>
+</div>
+
+<div class="row justify-content-center">
+    <div class="col-md-8">
+        <div class="card-custom">
+            <form asp-action="Create" method="post">
+                @Html.AntiForgeryToken()
+                <div asp-validation-summary="ModelOnly" class="text-danger mb-3"></div>
+
+                <h5 class="mb-4 text-primary border-bottom pb-2">Información Personal</h5>
+                <div class="row g-3 mb-4">
+                    <div class="col-md-6">
+                        <label asp-for="Nombres" class="form-label fw-semibold"></label>
+                        <input asp-for="Nombres" class="form-control" />
+                        <span asp-validation-for="Nombres" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Apellidos" class="form-label fw-semibold"></label>
+                        <input asp-for="Apellidos" class="form-control" />
+                        <span asp-validation-for="Apellidos" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Email" class="form-label fw-semibold"></label>
+                        <input asp-for="Email" class="form-control" />
+                        <span asp-validation-for="Email" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Telefono" class="form-label fw-semibold"></label>
+                        <input asp-for="Telefono" class="form-control" />
+                        <span asp-validation-for="Telefono" class="text-danger small"></span>
+                    </div>
+                </div>
+
+                <h5 class="mb-4 text-primary border-bottom pb-2">Credenciales de Acceso</h5>
+                <div class="row g-3 mb-4">
+                    <div class="col-md-12">
+                        <label asp-for="NombreUsuario" class="form-label fw-semibold"></label>
+                        <input asp-for="NombreUsuario" class="form-control" />
+                        <span asp-validation-for="NombreUsuario" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Contrasena" class="form-label fw-semibold"></label>
+                        <input asp-for="Contrasena" class="form-control" />
+                        <span asp-validation-for="Contrasena" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="ConfirmarContrasena" class="form-label fw-semibold"></label>
+                        <input asp-for="ConfirmarContrasena" class="form-control" />
+                        <span asp-validation-for="ConfirmarContrasena" class="text-danger small"></span>
+                    </div>
+                </div>
+
+                <div class="d-grid gap-2 d-md-flex justify-content-md-end mt-4">
+                    <button type="submit" class="btn btn-primary-custom px-5">
+                        <i class="bi bi-save me-2"></i>Crear Usuario
+                    </button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+@section Scripts {
+    @{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
+}
diff --git a/foundation_system/Views/Usuario/Edit.cshtml b/foundation_system/Views/Usuario/Edit.cshtml
new file mode 100644
index 0000000..3d95032
--- /dev/null
+++ b/foundation_system/Views/Usuario/Edit.cshtml
@@ -0,0 +1,95 @@
+@model foundation_system.Models.ViewModels.UsuarioViewModel
+@{
+    ViewData["Title"] = "Editar Usuario";
+}
+
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h2 class="mb-1">Editar Usuario</h2>
+        <p class="text-muted small mb-0">Actualizando perfil de: <strong>@Model.NombreUsuario</strong></p>
+    </div>
+    <a asp-action="Index" class="btn btn-outline-secondary">
+        <i class="bi bi-arrow-left me-2"></i>Volver
+    </a>
+</div>
+
+<div class="row justify-content-center">
+    <div class="col-md-8">
+        <div class="card-custom">
+            <form asp-action="Edit" method="post">
+                @Html.AntiForgeryToken()
+                <input type="hidden" asp-for="Id" />
+                <div asp-validation-summary="ModelOnly" class="text-danger mb-3"></div>
+
+                <h5 class="mb-4 text-primary border-bottom pb-2">Información Personal</h5>
+                <div class="row g-3 mb-4">
+                    <div class="col-md-6">
+                        <label asp-for="Nombres" class="form-label fw-semibold"></label>
+                        <input asp-for="Nombres" class="form-control" />
+                        <span asp-validation-for="Nombres" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Apellidos" class="form-label fw-semibold"></label>
+                        <input asp-for="Apellidos" class="form-control" />
+                        <span asp-validation-for="Apellidos" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Email" class="form-label fw-semibold"></label>
+                        <input asp-for="Email" class="form-control" />
+                        <span asp-validation-for="Email" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Telefono" class="form-label fw-semibold"></label>
+                        <input asp-for="Telefono" class="form-control" />
+                        <span asp-validation-for="Telefono" class="text-danger small"></span>
+                    </div>
+                </div>
+
+                <h5 class="mb-4 text-primary border-bottom pb-2">Configuración de Cuenta</h5>
+                <div class="row g-3 mb-4">
+                    <div class="col-md-6">
+                        <label asp-for="NombreUsuario" class="form-label fw-semibold"></label>
+                        <input asp-for="NombreUsuario" class="form-control" />
+                        <span asp-validation-for="NombreUsuario" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="Activo" class="form-label fw-semibold"></label>
+                        <select asp-for="Activo" class="form-select">
+                            <option value="true">Activo</option>
+                            <option value="false">Inactivo</option>
+                        </select>
+                        <span asp-validation-for="Activo" class="text-danger small"></span>
+                    </div>
+                </div>
+
+                <div class="alert alert-info small">
+                    <i class="bi bi-info-circle me-2"></i>
+                    Deje los campos de contraseña en blanco si no desea cambiarla.
+                </div>
+
+                <div class="row g-3 mb-4">
+                    <div class="col-md-6">
+                        <label asp-for="Contrasena" class="form-label fw-semibold">Nueva Contraseña</label>
+                        <input asp-for="Contrasena" class="form-control" placeholder="Opcional" />
+                        <span asp-validation-for="Contrasena" class="text-danger small"></span>
+                    </div>
+                    <div class="col-md-6">
+                        <label asp-for="ConfirmarContrasena" class="form-label fw-semibold"></label>
+                        <input asp-for="ConfirmarContrasena" class="form-control" placeholder="Opcional" />
+                        <span asp-validation-for="ConfirmarContrasena" class="text-danger small"></span>
+                    </div>
+                </div>
+
+                <div class="d-grid gap-2 d-md-flex justify-content-md-end mt-4">
+                    <button type="submit" class="btn btn-primary-custom px-5">
+                        <i class="bi bi-check2-circle me-2"></i>Actualizar Usuario
+                    </button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+@section Scripts {
+    @{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
+}
diff --git a/foundation_system/Views/Usuario/Index.cshtml b/foundation_system/Views/Usuario/Index.cshtml
new file mode 100644
index 0000000..511070d
--- /dev/null
+++ b/foundation_system/Views/Usuario/Index.cshtml
@@ -0,0 +1,97 @@
+@model IEnumerable<foundation_system.Models.Usuario>
+@{
+    ViewData["Title"] = "Gestión de Usuarios";
+}
+
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h2 class="mb-1">Usuarios del Sistema</h2>
+        <p class="text-muted small mb-0">Administre las cuentas de acceso y perfiles del personal administrativo.</p>
+    </div>
+    <a asp-action="Create" class="btn btn-primary-custom">
+        <i class="bi bi-person-plus-fill me-2"></i>Nuevo Usuario
+    </a>
+</div>
+
+<div class="card-custom">
+    <div class="table-responsive">
+        <table class="table-custom">
+            <thead>
+                <tr>
+                    <th>Usuario</th>
+                    <th>Nombre Completo</th>
+                    <th>Email</th>
+                    <th>Último Acceso</th>
+                    <th>Estado</th>
+                    <th>Acciones</th>
+                </tr>
+            </thead>
+            <tbody>
+                @foreach (var item in Model)
+                {
+                    <tr>
+                        <td class="fw-bold">@item.NombreUsuario</td>
+                        <td>@item.Persona.Nombres @item.Persona.Apellidos</td>
+                        <td>@item.Email</td>
+                        <td class="small text-muted">
+                            @(item.UltimoLogin?.ToString("dd/MM/yyyy HH:mm") ?? "Nunca")
+                        </td>
+                        <td>
+                            <span class="badge @(item.Activo ? "bg-success" : "bg-danger")">
+                                @(item.Activo ? "Activo" : "Inactivo")
+                            </span>
+                        </td>
+                        <td>
+                            <div class="btn-group">
+                                <a asp-action="Edit" asp-route-id="@item.Id" class="btn btn-sm btn-outline-secondary" title="Editar">
+                                    <i class="bi bi-pencil"></i>
+                                </a>
+                                @if (item.Activo && item.NombreUsuario != User.Identity?.Name)
+                                {
+                                    <button type="button" class="btn btn-sm btn-outline-danger" title="Desactivar" 
+                                            onclick="confirmarDesactivacion(@item.Id, '@item.NombreUsuario')">
+                                        <i class="bi bi-person-x"></i>
+                                    </button>
+                                }
+                            </div>
+                        </td>
+                    </tr>
+                }
+            </tbody>
+        </table>
+    </div>
+</div>
+
+<!-- Modal de Confirmación -->
+<div class="modal fade" id="modalDesactivar" tabindex="-1">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title">Confirmar Desactivación</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body">
+                ¿Está seguro que desea revocar el acceso al usuario <strong id="nombreUsuario"></strong>?
+                <p class="text-muted small mt-2">El usuario ya no podrá iniciar sesión en el sistema.</p>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancelar</button>
+                <form id="formDesactivar" asp-action="Desactivar" method="post">
+                    @Html.AntiForgeryToken()
+                    <input type="hidden" name="id" id="usuarioIdDesactivar" />
+                    <button type="submit" class="btn btn-danger">Desactivar</button>
+                </form>
+            </div>
+        </div>
+    </div>
+</div>
+
+@section Scripts {
+    <script>
+        function confirmarDesactivacion(id, nombre) {
+            document.getElementById('nombreUsuario').innerText = nombre;
+            document.getElementById('usuarioIdDesactivar').value = id;
+            new bootstrap.Modal(document.getElementById('modalDesactivar')).show();
+        }
+    </script>
+}
diff --git a/foundation_system/init_sql.sql b/foundation_system/init_sql.sql
new file mode 100644
index 0000000..647058b
--- /dev/null
+++ b/foundation_system/init_sql.sql
@@ -0,0 +1,954 @@
+-- ============================================
+-- 0. EXTENSIONES
+-- ============================================
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+-- ============================================
+-- 2. TABLA PERSONAS (SIMPLIFICADA)
+-- ============================================
+CREATE TABLE personas (
+    id              BIGSERIAL PRIMARY KEY,
+    nombres         VARCHAR(100) NOT NULL,
+    apellidos       VARCHAR(100) NOT NULL,
+    dui             VARCHAR(12) UNIQUE,
+    nit             VARCHAR(17) UNIQUE,
+    fecha_nacimiento DATE,
+    genero          CHAR(1) CHECK (genero IN ('M', 'F', 'O')),
+    email           VARCHAR(255),
+    telefono        VARCHAR(20),
+    direccion       TEXT,
+    foto_url        VARCHAR(255),
+    activo          BOOLEAN DEFAULT true,
+    creado_en       TIMESTAMPTZ DEFAULT now(),
+    actualizado_en  TIMESTAMPTZ DEFAULT now()
+);
+
+COMMENT ON TABLE personas IS 'Almacena información personal de todas las personas del sistema';
+
+-- Índices básicos
+CREATE INDEX idx_personas_activas ON personas(activo) WHERE activo = true;
+CREATE INDEX idx_personas_nombre ON personas(nombres, apellidos);
+
+-- ============================================
+-- 3. TABLA NIÑOS (SIMPLIFICADA)
+-- ============================================
+CREATE TABLE ninos (
+    id                  BIGSERIAL PRIMARY KEY,
+    persona_id          BIGINT NOT NULL UNIQUE REFERENCES personas(id),
+    fecha_inscripcion   DATE NOT NULL DEFAULT CURRENT_DATE,
+    codigo_inscripcion  VARCHAR(20) UNIQUE NOT NULL,
+    estado              VARCHAR(20) DEFAULT 'ACTIVO' 
+        CHECK (estado IN ('ACTIVO', 'INACTIVO', 'GRADUADO')),
+    nivel_grado         VARCHAR(20),
+    alergias            TEXT,
+    contacto_emergencia_nombre VARCHAR(100),
+    contacto_emergencia_telefono VARCHAR(20),
+    activo              BOOLEAN DEFAULT true,
+    creado_en           TIMESTAMPTZ DEFAULT now(),
+    actualizado_en      TIMESTAMPTZ DEFAULT now()
+);
+
+COMMENT ON TABLE ninos IS 'Niños registrados en la fundación con información específica';
+
+-- Índices básicos
+CREATE INDEX idx_ninos_estado ON ninos(estado);
+CREATE INDEX idx_ninos_activos ON ninos(activo) WHERE activo = true;
+
+-- ============================================
+-- 4. TABLA ENCARGADOS (SIMPLIFICADA)
+-- ============================================
+CREATE TABLE encargados_nino (
+    id                  BIGSERIAL PRIMARY KEY,
+    nino_id             BIGINT NOT NULL REFERENCES ninos(id),
+    persona_id          BIGINT NOT NULL REFERENCES personas(id),
+    parentesco          VARCHAR(50) NOT NULL DEFAULT 'PADRE'
+        CHECK (parentesco IN ('PADRE', 'MADRE', 'ENCARGADO', 'ABUELO')),
+    es_principal        BOOLEAN DEFAULT false,
+    puede_recoger       BOOLEAN DEFAULT true,
+    creado_en           TIMESTAMPTZ DEFAULT now()
+);
+
+-- Restricción para un solo encargado principal por niño
+CREATE UNIQUE INDEX uq_encargado_principal_nino 
+ON encargados_nino(nino_id) 
+WHERE es_principal = true;
+
+-- Índices básicos
+CREATE INDEX idx_encargados_nino ON encargados_nino(nino_id);
+CREATE INDEX idx_encargados_persona ON encargados_nino(persona_id);
+
+-- ============================================
+-- 5. TABLA ASISTENCIA (SIMPLIFICADA)
+-- ============================================
+CREATE TABLE asistencia (
+    id              BIGSERIAL PRIMARY KEY,
+    nino_id         BIGINT NOT NULL REFERENCES ninos(id),
+    fecha           DATE NOT NULL DEFAULT CURRENT_DATE,
+    estado          VARCHAR(20) NOT NULL DEFAULT 'PRESENTE'
+        CHECK (estado IN ('PRESENTE', 'AUSENTE', 'JUSTIFICADO', 'ENFERMO', 'TARDE')),
+    hora_entrada    TIME,
+    hora_salida     TIME,
+    notas           TEXT,
+    creado_en       TIMESTAMPTZ DEFAULT now()
+);
+
+COMMENT ON TABLE asistencia IS 'Registro diario de asistencia de los niños';
+
+-- Índices básicos
+CREATE INDEX idx_asistencia_fecha ON asistencia(fecha DESC);
+CREATE INDEX idx_asistencia_nino_fecha ON asistencia(nino_id, fecha DESC);
+CREATE UNIQUE INDEX uq_asistencia_nino_fecha ON asistencia(nino_id, fecha);
+-- ============================================
+-- 6. TABLA ANTECEDENTES (NUEVA)
+-- ============================================
+CREATE TABLE antecedentes_nino (
+    id                  BIGSERIAL PRIMARY KEY,
+    nino_id             BIGINT NOT NULL REFERENCES ninos(id),
+    fecha_incidente     TIMESTAMPTZ NOT NULL DEFAULT now(),
+    tipo_antecedente    VARCHAR(50) NOT NULL 
+        CHECK (tipo_antecedente IN ('LlamadaAtencion', 'Suspension', 'Castigo')),
+    descripcion         TEXT NOT NULL,
+    gravedad            VARCHAR(20) NOT NULL
+        CHECK (gravedad IN ('Alta', 'Media', 'Baja')),
+    usuario_registra    VARCHAR(100) NOT NULL,
+    activo              BOOLEAN DEFAULT true,
+    creado_en           TIMESTAMPTZ DEFAULT now(),
+    actualizado_en      TIMESTAMPTZ DEFAULT now()
+);
+
+COMMENT ON TABLE antecedentes_nino IS 'Historial de antecedentes, incidentes y sanciones de los niños';
+
+CREATE INDEX idx_antecedentes_nino ON antecedentes_nino(nino_id);
+CREATE INDEX idx_antecedentes_fecha ON antecedentes_nino(fecha_incidente DESC);
+
+-- ============================================
+-- 6. TABLA INVENTARIO (SIMPLIFICADA)
+-- ============================================
+CREATE TABLE categorias_inventario (
+    id              SERIAL PRIMARY KEY,
+    nombre          VARCHAR(100) NOT NULL,
+    descripcion     TEXT,
+    activo          BOOLEAN DEFAULT true,
+    creado_en       TIMESTAMPTZ DEFAULT now()
+);
+
+CREATE TABLE items_inventario (
+    id              BIGSERIAL PRIMARY KEY,
+    categoria_id    INTEGER REFERENCES categorias_inventario(id),
+    nombre          VARCHAR(200) NOT NULL,
+    descripcion     TEXT,
+    unidad          VARCHAR(20) DEFAULT 'UNIDAD',
+    stock_actual    INTEGER DEFAULT 0,
+    stock_minimo    INTEGER DEFAULT 0,
+    ubicacion       VARCHAR(100),
+    activo          BOOLEAN DEFAULT true,
+    creado_en       TIMESTAMPTZ DEFAULT now(),
+    actualizado_en  TIMESTAMPTZ DEFAULT now()
+);
+
+COMMENT ON TABLE items_inventario IS 'Items del inventario de la fundación';
+
+-- Índices básicos
+CREATE INDEX idx_items_inventario_categoria ON items_inventario(categoria_id);
+CREATE INDEX idx_items_inventario_activos ON items_inventario(activo) WHERE activo = true;
+
+-- ============================================
+-- 7. TABLA CAJA CHICA (SIMPLIFICADA)
+-- ============================================
+CREATE TABLE categorias_gasto (
+    id              SERIAL PRIMARY KEY,
+    nombre          VARCHAR(100) NOT NULL,
+    descripcion     TEXT,
+    activo          BOOLEAN DEFAULT true,
+    creado_en       TIMESTAMPTZ DEFAULT now()
+);
+
+CREATE TABLE transacciones_caja (
+    id                  BIGSERIAL PRIMARY KEY,
+    fecha_transaccion   DATE NOT NULL DEFAULT CURRENT_DATE,
+    tipo_transaccion    VARCHAR(20) NOT NULL
+        CHECK (tipo_transaccion IN ('INGRESO', 'EGRESO')),
+    categoria_id        INTEGER REFERENCES categorias_gasto(id),
+    monto               DECIMAL(12,2) NOT NULL CHECK (monto > 0),
+    descripcion         VARCHAR(200) NOT NULL,
+    referencia          VARCHAR(100),
+    metodo_pago         VARCHAR(20) DEFAULT 'EFECTIVO'
+        CHECK (metodo_pago IN ('EFECTIVO', 'CHEQUE', 'TRANSFERENCIA')),
+    creado_en           TIMESTAMPTZ DEFAULT now()
+);
+
+COMMENT ON TABLE transacciones_caja IS 'Movimientos financieros de la fundación';
+
+-- Índices básicos
+CREATE INDEX idx_transacciones_fecha ON transacciones_caja(fecha_transaccion DESC);
+CREATE INDEX idx_transacciones_tipo ON transacciones_caja(tipo_transaccion);
+
+-- ============================================
+-- 8. TABLA USUARIOS (SIMPLIFICADA)
+-- ============================================
+CREATE TABLE usuarios (
+    id                  BIGSERIAL PRIMARY KEY,
+    persona_id          BIGINT UNIQUE REFERENCES personas(id),
+    nombre_usuario      VARCHAR(50) UNIQUE NOT NULL,
+    email               VARCHAR(255) UNIQUE NOT NULL,
+    hash_contrasena     TEXT NOT NULL,
+    activo              BOOLEAN DEFAULT true,
+    ultimo_login        TIMESTAMPTZ,
+    creado_en           TIMESTAMPTZ DEFAULT now(),
+    actualizado_en      TIMESTAMPTZ DEFAULT now()
+);
+
+COMMENT ON TABLE usuarios IS 'Usuarios del sistema con credenciales de acceso';
+
+-- Índices básicos
+CREATE INDEX idx_usuarios_activos ON usuarios(activo) WHERE activo = true;
+
+-- ============================================
+-- 9. TABLA ROLES (SIMPLIFICADA)
+-- ============================================
+CREATE TABLE roles_sistema (
+    id              SERIAL PRIMARY KEY,
+    codigo          VARCHAR(50) UNIQUE NOT NULL,
+    nombre          VARCHAR(100) NOT NULL,
+    descripcion     TEXT,
+    creado_en       TIMESTAMPTZ DEFAULT now()
+);
+
+COMMENT ON TABLE roles_sistema IS 'Roles del sistema para control de acceso (RBAC)';
+
+-- Roles básicos
+INSERT INTO roles_sistema (codigo, nombre, descripcion) VALUES
+('ADMIN', 'Administrador', 'Acceso completo al sistema'),
+('MAESTRO', 'Maestro', 'Personal docente'),
+('ENCARGADO', 'Encargado', 'Encargado de niños'),
+('LECTOR', 'Solo Lectura', 'Acceso de solo lectura');
+
+-- ============================================
+-- 10. TABLA PERMISOS (SIMPLIFICADA)
+-- ============================================
+CREATE TABLE permisos (
+    id              SERIAL PRIMARY KEY,
+    modulo          VARCHAR(50) NOT NULL,
+    codigo          VARCHAR(100) UNIQUE NOT NULL,
+    nombre          VARCHAR(100) NOT NULL,
+    descripcion     TEXT,
+    creado_en       TIMESTAMPTZ DEFAULT now()
+);
+
+COMMENT ON TABLE permisos IS 'Permisos específicos del sistema organizados por módulos';
+
+-- Permisos básicos
+INSERT INTO permisos (modulo, codigo, nombre, descripcion) VALUES
+('PERSONAS', 'personas.ver', 'Ver Personas', 'Ver lista de personas'),
+('PERSONAS', 'personas.editar', 'Editar Personas', 'Editar información de personas'),
+('NIÑOS', 'ninos.ver', 'Ver Niños', 'Ver lista de niños'),
+('NIÑOS', 'ninos.editar', 'Editar Niños', 'Editar información de niños'),
+('ASISTENCIA', 'asistencia.ver', 'Ver Asistencia', 'Ver registros de asistencia'),
+('ASISTENCIA', 'asistencia.marcar', 'Marcar Asistencia', 'Registrar asistencia diaria'),
+('INVENTARIO', 'inventario.ver', 'Ver Inventario', 'Ver items del inventario'),
+('INVENTARIO', 'inventario.editar', 'Editar Inventario', 'Editar información de items'),
+('CAJA', 'caja.ver', 'Ver Caja', 'Ver movimientos de caja'),
+('CAJA', 'caja.editar', 'Editar Caja', 'Registrar movimientos de caja'),
+('USUARIOS', 'usuarios.ver', 'Ver Usuarios', 'Ver lista de usuarios'),
+('USUARIOS', 'usuarios.editar', 'Editar Usuarios', 'Editar información de usuarios');
+
+-- ============================================
+-- 11. TABLA ROLES-USUARIO (SIMPLIFICADA)
+-- ============================================
+CREATE TABLE roles_usuario (
+    usuario_id      BIGINT NOT NULL REFERENCES usuarios(id),
+    rol_id          INTEGER NOT NULL REFERENCES roles_sistema(id),
+    asignado_en     TIMESTAMPTZ DEFAULT now(),
+    PRIMARY KEY (usuario_id, rol_id)
+);
+
+-- ============================================
+-- 12. TABLA AUDITORÍA (SIMPLIFICADA)
+-- ============================================
+CREATE TABLE registros_auditoria (
+    id                  BIGSERIAL PRIMARY KEY,
+    usuario_id          BIGINT REFERENCES usuarios(id),
+    accion              VARCHAR(50) NOT NULL,
+    entidad             VARCHAR(50) NOT NULL,
+    entidad_id          BIGINT,
+    descripcion         TEXT,
+    creado_en           TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+COMMENT ON TABLE registros_auditoria IS 'Registro de auditoría de todas las acciones importantes del sistema';
+
+-- Índices básicos
+CREATE INDEX idx_auditoria_fecha ON registros_auditoria(creado_en DESC);
+CREATE INDEX idx_auditoria_usuario ON registros_auditoria(usuario_id);
+
+-- ============================================
+-- 13. DATOS INICIALES
+-- ============================================
+-- Insertar categorías de gasto básicas
+INSERT INTO categorias_gasto (nombre, descripcion) VALUES
+('ALIMENTACION', 'Gastos de alimentación'),
+('EDUCACION', 'Material educativo'),
+('MANTENIMIENTO', 'Mantenimiento de instalaciones'),
+('SERVICIOS', 'Servicios públicos'),
+('SALARIOS', 'Pago de salarios'),
+('OTROS', 'Otros gastos');
+
+-- Insertar categorías de inventario básicas
+INSERT INTO categorias_inventario (nombre, descripcion) VALUES
+('ALIMENTOS', 'Productos alimenticios'),
+('MATERIAL_ESCOLAR', 'Material escolar y educativo'),
+('LIMPIEZA', 'Productos de limpieza'),
+('OFICINA', 'Material de oficina'),
+('OTROS', 'Otras categorías');
+
+-- ============================================
+-- 14. USUARIO ADMIN POR DEFECTO
+-- ============================================
+DO $$
+DECLARE
+    persona_id BIGINT;
+    usuario_id BIGINT;
+BEGIN
+    -- Crear persona admin
+    INSERT INTO personas (
+        nombres, 
+        apellidos, 
+        email, 
+        telefono, 
+        activo
+    ) VALUES (
+        'Administrador',
+        'Sistema',
+        'admin@fundacion.org',
+        '0000-0000',
+        true
+    ) RETURNING id INTO persona_id;
+
+    -- Crear usuario admin (contraseña: Admin123!)
+    INSERT INTO usuarios (
+        persona_id,
+        nombre_usuario,
+        email,
+        hash_contrasena,
+        activo
+    ) VALUES (
+        persona_id,
+        'admin',
+        'admin@fundacion.org',
+        -- bcrypt hash para 'Admin123!'
+        '$2a$12$Y8vjQJfT6V5UeH5qQ8qB3uK9zLmNpQrS2T3U4V5W6X7Y8Z9A0B1C2D3E4F5G6H7I8',
+        true
+    ) RETURNING id INTO usuario_id;
+
+    -- Asignar rol de admin
+    INSERT INTO roles_usuario (usuario_id, rol_id)
+    SELECT usuario_id, id
+    FROM roles_sistema 
+    WHERE codigo = 'ADMIN';
+END
+$$;
+
+-- ============================================
+-- 15. FUNCIÓN PARA ACTUALIZAR TIMESTAMPS
+-- ============================================
+CREATE OR REPLACE FUNCTION actualizar_actualizado_en()
+RETURNS TRIGGER AS $$
+BEGIN
+    NEW.actualizado_en = now();
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+-- Triggers para actualizar automáticamente
+CREATE TRIGGER trg_personas_actualizado
+    BEFORE UPDATE ON personas
+    FOR EACH ROW
+    EXECUTE FUNCTION actualizar_actualizado_en();
+
+CREATE TRIGGER trg_ninos_actualizado
+    BEFORE UPDATE ON ninos
+    FOR EACH ROW
+    EXECUTE FUNCTION actualizar_actualizado_en();
+
+CREATE TRIGGER trg_items_inventario_actualizado
+    BEFORE UPDATE ON items_inventario
+    FOR EACH ROW
+    EXECUTE FUNCTION actualizar_actualizado_en();
+
+CREATE TRIGGER trg_usuarios_actualizado
+    BEFORE UPDATE ON usuarios
+    FOR EACH ROW
+    EXECUTE FUNCTION actualizar_actualizado_en();
+
+-- ============================================
+-- 16. VISTAS ÚTILES
+-- ============================================
+-- Vista para información básica de niños
+CREATE VIEW vista_ninos_completa AS
+SELECT 
+    n.id,
+    n.codigo_inscripcion,
+    p.nombres,
+    p.apellidos,
+    p.fecha_nacimiento,
+    EXTRACT(YEAR FROM AGE(p.fecha_nacimiento)) as edad,
+    p.genero,
+    n.estado,
+    n.nivel_grado,
+    n.fecha_inscripcion,
+    n.contacto_emergencia_nombre,
+    n.contacto_emergencia_telefono
+FROM ninos n
+JOIN personas p ON n.persona_id = p.id
+WHERE n.activo = true AND p.activo = true;
+
+-- Vista para asistencia del mes actual
+CREATE VIEW vista_asistencia_mensual AS
+SELECT 
+    nino_id,
+    DATE_TRUNC('month', fecha) as mes,
+    COUNT(*) as total_dias,
+    COUNT(*) FILTER (WHERE estado = 'PRESENTE') as dias_presente,
+    COUNT(*) FILTER (WHERE estado = 'AUSENTE') as dias_ausente,
+    ROUND(
+        (COUNT(*) FILTER (WHERE estado = 'PRESENTE') * 100.0 / 
+        NULLIF(COUNT(*), 0)
+    ), 2) as porcentaje_asistencia
+FROM asistencia
+GROUP BY nino_id, DATE_TRUNC('month', fecha);
+
+-- Vista para inventario bajo stock
+CREATE VIEW vista_inventario_bajo_stock AS
+SELECT 
+    i.id,
+    i.nombre,
+    c.nombre as categoria,
+    i.unidad,
+    i.stock_actual,
+    i.stock_minimo,
+    CASE 
+        WHEN i.stock_actual <= 0 THEN 'AGOTADO'
+        WHEN i.stock_actual <= i.stock_minimo THEN 'BAJO'
+        ELSE 'SUFICIENTE'
+    END as estado_stock
+FROM items_inventario i
+JOIN categorias_inventario c ON i.categoria_id = c.id
+WHERE i.activo = true AND (i.stock_actual <= i.stock_minimo OR i.stock_actual <= 0)
+ORDER BY i.stock_actual ASC;
+
+
+
+-- ============================================
+-- 17. TABLA CONFIGURACIÓN DEL SISTEMA (DINÁMICA)
+-- ============================================
+CREATE TABLE configuracion_sistema (
+    id                  SERIAL PRIMARY KEY,
+    clave               VARCHAR(100) UNIQUE NOT NULL,
+    valor               TEXT,
+    tipo_dato           VARCHAR(20) DEFAULT 'TEXTO'
+        CHECK (tipo_dato IN ('TEXTO', 'NUMERO', 'BOOLEANO', 'FECHA', 'JSON', 'HTML')),
+    categoria           VARCHAR(50) DEFAULT 'GENERAL',
+    grupo               VARCHAR(50) DEFAULT 'SISTEMA',
+    descripcion         TEXT,
+    es_editable         BOOLEAN DEFAULT true,
+    es_publico          BOOLEAN DEFAULT false,
+    orden               INTEGER DEFAULT 0,
+    opciones            JSONB, -- Para campos con opciones predefinidas
+    validacion_regex    VARCHAR(200), -- Expresión regular para validación
+    creado_en           TIMESTAMPTZ DEFAULT now(),
+    actualizado_en      TIMESTAMPTZ DEFAULT now()
+);
+
+COMMENT ON TABLE configuracion_sistema IS 'Configuración dinámica del sistema - clave-valor extensible';
+
+-- Índices para búsqueda eficiente
+CREATE INDEX idx_configuracion_clave ON configuracion_sistema(clave);
+CREATE INDEX idx_configuracion_categoria ON configuracion_sistema(categoria);
+CREATE INDEX idx_configuracion_grupo ON configuracion_sistema(grupo);
+
+-- ============================================
+-- 18. VISTAS PARA CONFIGURACIÓN
+-- ============================================
+-- Vista para obtener configuración organizada
+CREATE VIEW vista_configuracion_organizada AS
+SELECT 
+    id,
+    clave,
+    valor,
+    tipo_dato,
+    categoria,
+    grupo,
+    descripcion,
+    es_editable,
+    es_publico,
+    orden,
+    opciones,
+    validacion_regex,
+    creado_en,
+    actualizado_en
+FROM configuracion_sistema
+ORDER BY categoria, grupo, orden, clave;
+
+-- Vista para configuración pública (para APIs o frontend)
+CREATE VIEW vista_configuracion_publica AS
+SELECT 
+    clave,
+    valor,
+    tipo_dato,
+    categoria,
+    grupo,
+    descripcion
+FROM configuracion_sistema
+WHERE es_publico = true
+ORDER BY categoria, grupo, orden, clave;
+
+-- ============================================
+-- 19. FUNCIONES ÚTILES PARA CONFIGURACIÓN
+-- ============================================
+-- Función para obtener un valor de configuración con tipo correcto
+CREATE OR REPLACE FUNCTION obtener_configuracion(
+    p_clave VARCHAR(100),
+    p_valor_default TEXT DEFAULT NULL
+)
+RETURNS TEXT AS $$
+DECLARE
+    v_valor TEXT;
+BEGIN
+    SELECT valor INTO v_valor
+    FROM configuracion_sistema
+    WHERE clave = p_clave;
+    
+    RETURN COALESCE(v_valor, p_valor_default);
+END;
+$$ LANGUAGE plpgsql;
+
+-- Función para establecer configuración (inserta o actualiza)
+CREATE OR REPLACE FUNCTION establecer_configuracion(
+    p_clave VARCHAR(100),
+    p_valor TEXT,
+    p_tipo_dato VARCHAR(20) DEFAULT 'TEXTO',
+    p_categoria VARCHAR(50) DEFAULT 'GENERAL',
+    p_grupo VARCHAR(50) DEFAULT 'SISTEMA',
+    p_descripcion TEXT DEFAULT NULL,
+    p_es_editable BOOLEAN DEFAULT true,
+    p_es_publico BOOLEAN DEFAULT false,
+    p_orden INTEGER DEFAULT 0
+)
+RETURNS VOID AS $$
+BEGIN
+    INSERT INTO configuracion_sistema (
+        clave, valor, tipo_dato, categoria, grupo, 
+        descripcion, es_editable, es_publico, orden
+    ) VALUES (
+        p_clave, p_valor, p_tipo_dato, p_categoria, p_grupo,
+        p_descripcion, p_es_editable, p_es_publico, p_orden
+    )
+    ON CONFLICT (clave) DO UPDATE SET
+        valor = EXCLUDED.valor,
+        tipo_dato = EXCLUDED.tipo_dato,
+        categoria = EXCLUDED.categoria,
+        grupo = EXCLUDED.grupo,
+        descripcion = COALESCE(EXCLUDED.descripcion, configuracion_sistema.descripcion),
+        es_editable = EXCLUDED.es_editable,
+        es_publico = EXCLUDED.es_publico,
+        orden = EXCLUDED.orden,
+        actualizado_en = now();
+END;
+$$ LANGUAGE plpgsql;
+
+-- Función para obtener configuración por categoría
+CREATE OR REPLACE FUNCTION obtener_configuracion_categoria(
+    p_categoria VARCHAR(50)
+)
+RETURNS TABLE(
+    clave VARCHAR(100),
+    valor TEXT,
+    tipo_dato VARCHAR(20),
+    grupo VARCHAR(50),
+    descripcion TEXT
+) AS $$
+BEGIN
+    RETURN QUERY
+    SELECT 
+        cs.clave,
+        cs.valor,
+        cs.tipo_dato,
+        cs.grupo,
+        cs.descripcion
+    FROM configuracion_sistema cs
+    WHERE cs.categoria = p_categoria
+    ORDER BY cs.grupo, cs.orden, cs.clave;
+END;
+$$ LANGUAGE plpgsql;
+
+-- ============================================
+-- 20. TRIGGER PARA ACTUALIZAR TIMESTAMP
+-- ============================================
+CREATE TRIGGER trg_configuracion_actualizado
+    BEFORE UPDATE ON configuracion_sistema
+    FOR EACH ROW
+    EXECUTE FUNCTION actualizar_actualizado_en();
+
+-- ============================================
+-- 21. FUNCIÓN PARA GENERAR CÓDIGO DE INSCRIPCIÓN
+-- ============================================
+CREATE OR REPLACE FUNCTION generar_codigo_inscripcion(
+    p_apellidos TEXT,
+    p_anio SMALLINT
+)
+RETURNS VARCHAR(20) AS $$
+DECLARE
+    v_iniciales TEXT := '';
+    v_anio TEXT := LPAD((p_anio % 100)::TEXT, 2, '0');
+    v_correlativo INTEGER;
+    v_ultimo_codigo TEXT;
+    v_parte TEXT;
+BEGIN
+    -- Validación básica
+    IF p_anio < 2000 OR p_anio > 2100 THEN
+        RAISE EXCEPTION 'Año inválido: %', p_anio;
+    END IF;
+
+    -- Iniciales de apellidos
+    FOR v_parte IN SELECT unnest(string_to_array(p_apellidos, ' ')) LOOP
+        IF v_parte <> '' THEN
+            v_iniciales := v_iniciales || UPPER(LEFT(v_parte, 1));
+        END IF;
+    END LOOP;
+
+    -- Último correlativo por inicial + año
+    SELECT codigo_inscripcion
+    INTO v_ultimo_codigo
+    FROM ninos
+    WHERE codigo_inscripcion LIKE v_iniciales || v_anio || '___'
+    ORDER BY codigo_inscripcion DESC
+    LIMIT 1;
+
+    IF v_ultimo_codigo IS NOT NULL THEN
+        v_correlativo := RIGHT(v_ultimo_codigo, 3)::INTEGER + 1;
+    ELSE
+        v_correlativo := 1;
+    END IF;
+
+    RETURN v_iniciales || v_anio || LPAD(v_correlativo::TEXT, 3, '0');
+END;
+$$ LANGUAGE plpgsql;
+-- ============================================================================
+-- MOTOR DE BÚSQUEDA AVANZADO PARA PERSONAS
+-- ============================================================================
+-- Características:
+-- ✅ Normalización (acentos, mayúsculas)
+-- ✅ Tokenización (búsqueda por palabras individuales)
+-- ✅ Fuzzy matching (errores ortográficos)
+-- ✅ Ranking ponderado (diferentes campos, diferentes pesos)
+-- ✅ Búsqueda en dos fases (índice + CPU)
+-- ============================================================================
+
+-- 1️⃣ Asegurar que las extensiones estén activas
+CREATE EXTENSION IF NOT EXISTS pg_trgm;
+CREATE EXTENSION IF NOT EXISTS fuzzystrmatch;
+CREATE EXTENSION IF NOT EXISTS unaccent;
+
+-- ============================================================================
+-- 2️⃣ FUNCIÓN AUXILIAR: Normalizar texto
+-- ============================================================================
+CREATE OR REPLACE FUNCTION normalizar_texto(texto TEXT)
+RETURNS TEXT AS $$
+BEGIN
+    RETURN unaccent(lower(trim(texto)));
+END;
+$$ LANGUAGE plpgsql IMMUTABLE;
+
+-- ============================================================================
+-- 3️⃣ FUNCIÓN PRINCIPAL: Búsqueda avanzada
+-- ============================================================================
+CREATE OR REPLACE FUNCTION buscar_personas_v2(
+    p_termino TEXT,
+    p_tipo TEXT,
+    p_limite INTEGER DEFAULT 10
+)
+RETURNS TABLE(
+    id BIGINT,
+    text TEXT,
+    score DOUBLE PRECISION,
+    match_type TEXT  -- Para debugging: qué tipo de match fue
+) AS $$
+DECLARE
+    v_termino_norm TEXT;
+    v_tokens TEXT[];
+    v_sim_threshold DOUBLE PRECISION := 0.15;  -- Más permisivo
+    v_lev_threshold INTEGER := 3;              -- Permite más errores
+    
+    -- Pesos para ranking (ajusta según importancia)
+    v_peso_nombre DOUBLE PRECISION := 1.0;
+    v_peso_apellido DOUBLE PRECISION := 0.8;
+    v_peso_codigo DOUBLE PRECISION := 0.6;
+    v_peso_dui DOUBLE PRECISION := 0.5;
+BEGIN
+    -- Normalizar el término de búsqueda
+    v_termino_norm := normalizar_texto(p_termino);
+    
+    -- Tokenizar (separar por palabras)
+    v_tokens := string_to_array(v_termino_norm, ' ');
+    
+    -- ========================================================================
+    -- BÚSQUEDA PARA NIÑOS
+    -- ========================================================================
+    IF upper(p_tipo) = 'NINO' THEN
+        RETURN QUERY
+        WITH candidatos AS (
+            -- FASE 1: Filtro rápido por índice (operador %)
+            SELECT
+                n.id,
+                p.nombres,
+                p.apellidos,
+                n.codigo_inscripcion,
+                normalizar_texto(p.nombres) AS nombres_norm,
+                normalizar_texto(p.apellidos) AS apellidos_norm,
+                normalizar_texto(n.codigo_inscripcion) AS codigo_norm
+            FROM ninos n
+            JOIN personas p ON p.id = n.persona_id
+            WHERE n.activo = true
+              AND p.activo = true
+              AND (
+                    -- Búsqueda rápida con operador % (usa índice GIN)
+                    normalizar_texto(p.nombres || ' ' || p.apellidos) % v_termino_norm
+                 OR normalizar_texto(n.codigo_inscripcion) % v_termino_norm
+                 OR normalizar_texto(p.nombres) % ANY(v_tokens)
+                 OR normalizar_texto(p.apellidos) % ANY(v_tokens)
+              )
+        ),
+        scoring AS (
+            -- FASE 2: Cálculo preciso de scores
+            SELECT
+                c.id,
+                (c.nombres || ' ' || c.apellidos || ' | Código: ' || c.codigo_inscripcion)::TEXT AS display_text,
+                
+                -- Score por similitud de nombre completo
+                (similarity(c.nombres_norm || ' ' || c.apellidos_norm, v_termino_norm) * v_peso_nombre) AS score_nombre_completo,
+                
+                -- Score por similitud de nombres individuales
+                (similarity(c.nombres_norm, v_termino_norm) * v_peso_nombre) AS score_nombres,
+                
+                -- Score por similitud de apellidos
+                (similarity(c.apellidos_norm, v_termino_norm) * v_peso_apellido) AS score_apellidos,
+                
+                -- Score por código
+                (similarity(c.codigo_norm, v_termino_norm) * v_peso_codigo) AS score_codigo,
+                
+                -- Score por Levenshtein (nombres)
+                (1.0 - (levenshtein(c.nombres_norm, v_termino_norm)::DOUBLE PRECISION 
+                    / GREATEST(length(c.nombres_norm), length(v_termino_norm), 1))) * v_peso_nombre AS score_lev_nombres,
+                
+                -- Score por tokens (cada palabra individual)
+                (
+                    SELECT COALESCE(MAX(
+                        GREATEST(
+                            similarity(c.nombres_norm, tok),
+                            similarity(c.apellidos_norm, tok)
+                        )
+                    ), 0)
+                    FROM unnest(v_tokens) tok
+                ) * 0.9 AS score_tokens,
+                
+                -- Determinar tipo de match
+                CASE
+                    WHEN similarity(c.codigo_norm, v_termino_norm) >= v_sim_threshold THEN 'codigo'
+                    WHEN similarity(c.nombres_norm || ' ' || c.apellidos_norm, v_termino_norm) >= v_sim_threshold THEN 'nombre_completo'
+                    WHEN levenshtein(c.nombres_norm, v_termino_norm) <= v_lev_threshold THEN 'fuzzy'
+                    ELSE 'token'
+                END AS match_type
+                
+            FROM candidatos c
+        )
+        SELECT
+            s.id,
+            s.display_text,
+            -- Score final: tomar el máximo de todos los métodos
+            GREATEST(
+                s.score_nombre_completo,
+                s.score_nombres,
+                s.score_apellidos,
+                s.score_codigo,
+                s.score_lev_nombres,
+                s.score_tokens
+            ) AS score,
+            s.match_type
+        FROM scoring s
+        WHERE GREATEST(
+                s.score_nombre_completo,
+                s.score_nombres,
+                s.score_apellidos,
+                s.score_codigo,
+                s.score_lev_nombres,
+                s.score_tokens
+              ) > 0.1  -- Umbral mínimo para aparecer en resultados
+        ORDER BY score DESC
+        LIMIT p_limite;
+    
+    -- ========================================================================
+    -- BÚSQUEDA PARA ENCARGADOS
+    -- ========================================================================
+    ELSIF upper(p_tipo) = 'ENCARGADO' THEN
+        RETURN QUERY
+        WITH candidatos AS (
+            SELECT
+                p.id,
+                p.nombres,
+                p.apellidos,
+                COALESCE(p.dui, '') AS dui,
+                en.parentesco,
+                normalizar_texto(p.nombres) AS nombres_norm,
+                normalizar_texto(p.apellidos) AS apellidos_norm,
+                normalizar_texto(COALESCE(p.dui, '')) AS dui_norm
+            FROM encargados_nino en
+            JOIN personas p ON p.id = en.persona_id
+            WHERE p.activo = true
+              AND (
+                    normalizar_texto(p.nombres || ' ' || p.apellidos) % v_termino_norm
+                 OR normalizar_texto(COALESCE(p.dui, '')) % v_termino_norm
+                 OR normalizar_texto(p.nombres) % ANY(v_tokens)
+                 OR normalizar_texto(p.apellidos) % ANY(v_tokens)
+              )
+        ),
+        scoring AS (
+            SELECT
+                c.id,
+                (c.nombres || ' ' || c.apellidos || ' (' || c.parentesco || ')')::TEXT AS display_text,
+                
+                (similarity(c.nombres_norm || ' ' || c.apellidos_norm, v_termino_norm) * v_peso_nombre) AS score_nombre_completo,
+                (similarity(c.nombres_norm, v_termino_norm) * v_peso_nombre) AS score_nombres,
+                (similarity(c.apellidos_norm, v_termino_norm) * v_peso_apellido) AS score_apellidos,
+                (similarity(c.dui_norm, v_termino_norm) * v_peso_dui) AS score_dui,
+                
+                (1.0 - (levenshtein(c.nombres_norm, v_termino_norm)::DOUBLE PRECISION 
+                    / GREATEST(length(c.nombres_norm), length(v_termino_norm), 1))) * v_peso_nombre AS score_lev_nombres,
+                
+                (
+                    SELECT COALESCE(MAX(
+                        GREATEST(
+                            similarity(c.nombres_norm, tok),
+                            similarity(c.apellidos_norm, tok)
+                        )
+                    ), 0)
+                    FROM unnest(v_tokens) tok
+                ) * 0.9 AS score_tokens,
+                
+                CASE
+                    WHEN similarity(c.dui_norm, v_termino_norm) >= v_sim_threshold THEN 'dui'
+                    WHEN similarity(c.nombres_norm || ' ' || c.apellidos_norm, v_termino_norm) >= v_sim_threshold THEN 'nombre_completo'
+                    WHEN levenshtein(c.nombres_norm, v_termino_norm) <= v_lev_threshold THEN 'fuzzy'
+                    ELSE 'token'
+                END AS match_type
+                
+            FROM candidatos c
+        )
+        SELECT
+            s.id,
+            s.display_text,
+            GREATEST(
+                s.score_nombre_completo,
+                s.score_nombres,
+                s.score_apellidos,
+                s.score_dui,
+                s.score_lev_nombres,
+                s.score_tokens
+            ) AS score,
+            s.match_type
+        FROM scoring s
+        WHERE GREATEST(
+                s.score_nombre_completo,
+                s.score_nombres,
+                s.score_apellidos,
+                s.score_dui,
+                s.score_lev_nombres,
+                s.score_tokens
+              ) > 0.1
+        ORDER BY score DESC
+        LIMIT p_limite;
+    
+    ELSE
+        RAISE EXCEPTION 'Tipo no soportado: %. Use NINO o ENCARGADO', p_tipo;
+    END IF;
+END;
+$$ LANGUAGE plpgsql;
+
+-- ============================================================================
+-- 4️⃣ ÍNDICES RECOMENDADOS (CRÍTICO PARA PERFORMANCE)
+-- ============================================================================
+
+-- Para tabla personas
+CREATE INDEX IF NOT EXISTS idx_personas_nombres_trgm 
+ON personas USING gin(normalizar_texto(nombres) gin_trgm_ops);
+
+CREATE INDEX IF NOT EXISTS idx_personas_apellidos_trgm 
+ON personas USING gin(normalizar_texto(apellidos) gin_trgm_ops);
+
+CREATE INDEX IF NOT EXISTS idx_personas_nombre_completo_trgm 
+ON personas USING gin(normalizar_texto(nombres || ' ' || apellidos) gin_trgm_ops);
+
+CREATE INDEX IF NOT EXISTS idx_personas_dui_trgm 
+ON personas USING gin(normalizar_texto(dui) gin_trgm_ops) 
+WHERE dui IS NOT NULL;
+
+CREATE INDEX IF NOT EXISTS idx_personas_activo 
+ON personas(activo) WHERE activo = true;
+
+-- Para tabla ninos
+CREATE INDEX IF NOT EXISTS idx_ninos_codigo_trgm 
+ON ninos USING gin(normalizar_texto(codigo_inscripcion) gin_trgm_ops);
+
+CREATE INDEX IF NOT EXISTS idx_ninos_activo 
+ON ninos(activo) WHERE activo = true;
+
+CREATE INDEX IF NOT EXISTS idx_ninos_persona_id 
+ON ninos(persona_id);
+
+-- Para tabla encargados_nino
+CREATE INDEX IF NOT EXISTS idx_encargados_persona_id 
+ON encargados_nino(persona_id);
+
+-- ============================================================================
+-- 5️⃣ EJEMPLOS DE USO
+-- ============================================================================
+
+/*
+-- Búsqueda de niños con errores ortográficos
+SELECT * FROM buscar_personas_v2('juan albero', 'NINO');  -- encuentra "Juan Alberto"
+SELECT * FROM buscar_personas_v2('mria', 'NINO');         -- encuentra "María"
+SELECT * FROM buscar_personas_v2('jose', 'NINO');         -- encuentra "José"
+
+-- Búsqueda por código parcial
+SELECT * FROM buscar_personas_v2('2024', 'NINO');
+
+-- Búsqueda de encargados
+SELECT * FROM buscar_personas_v2('ana garcia', 'ENCARGADO');
+SELECT * FROM buscar_personas_v2('12345678', 'ENCARGADO');  -- por DUI
+
+-- Con límite personalizado
+SELECT * FROM buscar_personas_v2('juan', 'NINO', 20);
+*/
+
+-- ============================================================================
+-- 6️⃣ ESTADÍSTICAS Y DEBUGGING
+-- ============================================================================
+
+-- Ver distribución de tipos de match
+CREATE OR REPLACE FUNCTION analizar_busqueda(p_termino TEXT, p_tipo TEXT)
+RETURNS TABLE(
+    match_type TEXT,
+    cantidad BIGINT,
+    score_promedio DOUBLE PRECISION
+) AS $$
+BEGIN
+    RETURN QUERY
+    SELECT
+        b.match_type,
+        COUNT(*) AS cantidad,
+        AVG(b.score) AS score_promedio
+    FROM buscar_personas_v2(p_termino, p_tipo, 100) b
+    GROUP BY b.match_type
+    ORDER BY cantidad DESC;
+END;
+$$ LANGUAGE plpgsql;
+
+-- Ejemplo: SELECT * FROM analizar_busqueda('juan', 'NINO');
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diff --git a/foundation_system/wwwroot/css/auth.css b/foundation_system/wwwroot/css/auth.css
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+/* ===============================================
+   MIES - Authentication Styles
+   Premium glassmorphism design with animations
+   =============================================== */
+
+/* CSS Variables */
+:root {
+  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+  --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
+  --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
+
+  --primary-color: #667eea;
+  --primary-dark: #5a67d8;
+  --secondary-color: #764ba2;
+  --accent-color: #4facfe;
+
+  --glass-bg: rgba(255, 255, 255, 0.15);
+  --glass-border: rgba(255, 255, 255, 0.25);
+  --glass-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
+
+  --text-primary: #1a1a2e;
+  --text-secondary: #4a4a68;
+  --text-light: #8888a4;
+
+  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
+    sans-serif;
+
+  --border-radius: 16px;
+  --border-radius-sm: 12px;
+  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+/* Base Styles */
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+body {
+  font-family: var(--font-family);
+  min-height: 100vh;
+  overflow-x: hidden;
+}
+
+/* Auth Container */
+.auth-container {
+  min-height: 100vh;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 20px;
+  position: relative;
+}
+
+/* Background Effects */
+.auth-background {
+  position: fixed;
+  inset: 0;
+  z-index: -1;
+  overflow: hidden;
+}
+
+.auth-gradient {
+  position: absolute;
+  inset: 0;
+  background: var(--primary-gradient);
+}
+
+.auth-gradient::before {
+  content: "";
+  position: absolute;
+  top: -50%;
+  left: -50%;
+  width: 200%;
+  height: 200%;
+  background: radial-gradient(
+    circle,
+    rgba(255, 255, 255, 0.1) 0%,
+    transparent 50%
+  );
+  animation: pulse 15s ease-in-out infinite;
+}
+
+.auth-pattern {
+  position: absolute;
+  inset: 0;
+  background-image: radial-gradient(
+      circle at 20% 80%,
+      rgba(255, 255, 255, 0.1) 0%,
+      transparent 50%
+    ),
+    radial-gradient(
+      circle at 80% 20%,
+      rgba(255, 255, 255, 0.08) 0%,
+      transparent 50%
+    ),
+    radial-gradient(
+      circle at 40% 40%,
+      rgba(255, 255, 255, 0.05) 0%,
+      transparent 50%
+    );
+}
+
+/* Floating orbs */
+.auth-background::after {
+  content: "";
+  position: absolute;
+  width: 400px;
+  height: 400px;
+  background: rgba(255, 255, 255, 0.08);
+  border-radius: 50%;
+  top: -100px;
+  right: -100px;
+  animation: float 8s ease-in-out infinite;
+}
+
+/* Auth Card - Glassmorphism */
+.auth-card {
+  width: 100%;
+  max-width: 420px;
+  background: rgba(255, 255, 255, 0.95);
+  backdrop-filter: blur(20px);
+  -webkit-backdrop-filter: blur(20px);
+  border-radius: var(--border-radius);
+  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25),
+    0 0 0 1px rgba(255, 255, 255, 0.1);
+  padding: 40px;
+  position: relative;
+  overflow: hidden;
+}
+
+.auth-card-register {
+  max-width: 520px;
+}
+
+.auth-card::before {
+  content: "";
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 4px;
+  background: var(--primary-gradient);
+}
+
+/* Auth Header */
+.auth-header {
+  text-align: center;
+  margin-bottom: 32px;
+}
+
+.auth-logo {
+  margin-bottom: 16px;
+}
+
+.logo-icon {
+  width: 72px;
+  height: 72px;
+  margin: 0 auto;
+  padding: 12px;
+  background: var(--primary-gradient);
+  border-radius: 20px;
+  color: white;
+  box-shadow: 0 10px 30px -5px rgba(102, 126, 234, 0.5);
+  transition: var(--transition);
+}
+
+.logo-icon:hover {
+  transform: scale(1.05) rotate(5deg);
+}
+
+.auth-title {
+  font-size: 2rem;
+  font-weight: 700;
+  color: var(--text-primary);
+  letter-spacing: 3px;
+  margin-bottom: 4px;
+  background: var(--primary-gradient);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+}
+
+.auth-subtitle {
+  font-size: 0.875rem;
+  color: var(--text-secondary);
+  font-weight: 500;
+  letter-spacing: 1px;
+}
+
+/* Form Styles */
+.auth-form {
+  margin-bottom: 24px;
+}
+
+.form-floating {
+  position: relative;
+}
+
+.form-floating > .form-control {
+  height: 56px;
+  padding: 16px;
+  padding-left: 16px;
+  border: 2px solid #e8e8f0;
+  border-radius: var(--border-radius-sm);
+  font-size: 1rem;
+  font-weight: 500;
+  color: var(--text-primary);
+  background: rgba(248, 248, 252, 0.8);
+  transition: var(--transition);
+}
+
+.form-floating > .form-control:focus {
+  border-color: var(--primary-color);
+  box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
+  background: white;
+}
+
+.form-floating > .form-control::placeholder {
+  color: transparent;
+}
+
+.form-floating > label {
+  position: absolute;
+  top: 0;
+  left: 0;
+  height: 100%;
+  padding: 16px;
+  pointer-events: none;
+  border: 2px solid transparent;
+  transform-origin: 0 0;
+  transition: var(--transition);
+  color: var(--text-light);
+  font-weight: 500;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.input-icon {
+  width: 18px;
+  height: 18px;
+  opacity: 0.6;
+}
+
+.form-floating > .form-control:focus ~ label,
+.form-floating > .form-control:not(:placeholder-shown) ~ label {
+  opacity: 0.8;
+  transform: scale(0.85) translateY(-0.75rem) translateX(0.15rem);
+  background: white;
+  padding: 0 8px;
+  height: auto;
+}
+
+/* Check input */
+.form-check-input {
+  width: 18px;
+  height: 18px;
+  border: 2px solid #ddd;
+  border-radius: 4px;
+  cursor: pointer;
+}
+
+.form-check-input:checked {
+  background-color: var(--primary-color);
+  border-color: var(--primary-color);
+}
+
+.form-check-input:focus {
+  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
+}
+
+.form-check-label {
+  color: var(--text-secondary);
+  font-size: 0.9rem;
+  cursor: pointer;
+}
+
+/* Auth Button */
+.btn-auth {
+  width: 100%;
+  height: 52px;
+  background: var(--primary-gradient);
+  border: none;
+  border-radius: var(--border-radius-sm);
+  color: white;
+  font-size: 1rem;
+  font-weight: 600;
+  letter-spacing: 0.5px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 10px;
+  cursor: pointer;
+  transition: var(--transition);
+  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
+}
+
+.btn-auth:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
+  color: white;
+}
+
+.btn-auth:active {
+  transform: translateY(0);
+}
+
+.btn-auth svg {
+  width: 20px;
+  height: 20px;
+  transition: transform 0.3s ease;
+}
+
+.btn-auth:hover svg {
+  transform: translateX(4px);
+}
+
+/* Auth Footer */
+.auth-footer {
+  text-align: center;
+  padding-top: 20px;
+  border-top: 1px solid rgba(0, 0, 0, 0.06);
+}
+
+.auth-footer p {
+  font-size: 0.9rem;
+  color: var(--text-light);
+  margin-bottom: 4px;
+}
+
+.auth-link {
+  color: var(--primary-color);
+  font-weight: 600;
+  text-decoration: none;
+  transition: var(--transition);
+}
+
+.auth-link:hover {
+  color: var(--secondary-color);
+  text-decoration: underline;
+}
+
+/* Auth Branding */
+.auth-branding {
+  text-align: center;
+  margin-top: 24px;
+  padding-top: 16px;
+  font-size: 0.75rem;
+  color: var(--text-light);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 8px;
+}
+
+.auth-branding .separator {
+  color: var(--primary-color);
+}
+
+/* Alert Styles */
+.alert {
+  border-radius: var(--border-radius-sm);
+  font-size: 0.875rem;
+  border: none;
+}
+
+.alert-success {
+  background: linear-gradient(
+    135deg,
+    rgba(72, 187, 120, 0.1) 0%,
+    rgba(56, 178, 172, 0.1) 100%
+  );
+  color: #276749;
+}
+
+.alert-danger {
+  background: linear-gradient(
+    135deg,
+    rgba(245, 101, 101, 0.1) 0%,
+    rgba(237, 100, 166, 0.1) 100%
+  );
+  color: #c53030;
+}
+
+/* Validation Styles */
+.text-danger {
+  font-size: 0.75rem;
+  margin-top: 4px;
+  display: block;
+}
+
+.input-validation-error {
+  border-color: #e53e3e !important;
+}
+
+/* Animations */
+@keyframes fade-in {
+  from {
+    opacity: 0;
+    transform: translateY(20px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+@keyframes pulse {
+  0%,
+  100% {
+    transform: scale(1) rotate(0deg);
+  }
+  50% {
+    transform: scale(1.1) rotate(180deg);
+  }
+}
+
+@keyframes float {
+  0%,
+  100% {
+    transform: translate(0, 0);
+  }
+  50% {
+    transform: translate(-30px, 30px);
+  }
+}
+
+.animate-fade-in {
+  animation: fade-in 0.6s ease-out forwards;
+}
+
+/* Responsive Styles */
+@media (max-width: 576px) {
+  .auth-card {
+    padding: 28px 24px;
+  }
+
+  .auth-title {
+    font-size: 1.75rem;
+  }
+
+  .logo-icon {
+    width: 60px;
+    height: 60px;
+  }
+
+  .auth-card-register .row > div {
+    width: 100%;
+  }
+}
+
+/* Row helpers for registration */
+.auth-form .row {
+  display: flex;
+  flex-wrap: wrap;
+  margin: 0 -8px;
+}
+
+.auth-form .row > .col-md-6 {
+  padding: 0 8px;
+  flex: 0 0 50%;
+  max-width: 50%;
+}
+
+@media (max-width: 576px) {
+  .auth-form .row > .col-md-6 {
+    flex: 0 0 100%;
+    max-width: 100%;
+  }
+}
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