/**
 * style.css
 * 
 * Estilos del Formulario de Censo de Egresados
 * Ubicación: /assets/style.css
 */

/* ============================================
   VARIABLES CSS
   ============================================ */

:root {
    --color-primario: #667eea;
    --color-secundario: #764ba2;
    --color-exito: #4caf50;
    --color-error: #f44336;
    --color-advertencia: #ff9800;
    --color-info: #2196f3;
    --color-texto: #333;
    --color-texto-claro: #666;
    --color-fondo: #f5f7fa;
    --color-blanco: #ffffff;
    --color-borde: #dee2e6;
    --sombra-suave: 0 2px 10px rgba(0,0,0,0.1);
    --sombra-media: 0 4px 20px rgba(0,0,0,0.15);
    --radio-borde: 8px;
    --transicion-rapida: all 0.2s ease;
    --transicion-media: all 0.3s ease;
}

/* ============================================
   RESET Y BASE
   ============================================ */

.formulario-censo-container * {
    box-sizing: border-box;
}

.formulario-censo-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--color-texto);
    line-height: 1.6;
}

/* ============================================
   ALERTAS Y NOTIFICACIONES
   ============================================ */

.alerta-error,
.alerta-exito,
.alerta-advertencia,
.alerta-info {
    padding: 15px 20px;
    margin-bottom: 25px;
    border-radius: var(--radio-borde);
    border-left: 5px solid;
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alerta-error {
    background: #ffebee;
    border-left-color: var(--color-error);
    color: #c62828;
}

.alerta-exito {
    background: #e8f5e9;
    border-left-color: var(--color-exito);
    color: #2e7d32;
}

.alerta-advertencia {
    background: #fff3e0;
    border-left-color: var(--color-advertencia);
    color: #ef6c00;
}

.alerta-info {
    background: #e3f2fd;
    border-left-color: var(--color-info);
    color: #1565c0;
}

/* ============================================
   HEADER Y TÍTULOS
   ============================================ */

.censo-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 30px;
    background: linear-gradient(135deg, var(--color-primario) 0%, var(--color-secundario) 100%);
    color: var(--color-blanco);
    border-radius: var(--radio-borde);
    box-shadow: var(--sombra-media);
}

.censo-header h2 {
    margin: 0;
    font-size: 1.6em;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* ============================================
   TABLAS
   ============================================ */

.tabla-resumen,
.tabla-verificacion,
.tabla-detalles {
    width: 100%;
    max-width: 800px;
    margin: 0 auto 30px;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--color-blanco);
    border-radius: var(--radio-borde);
    overflow: hidden;
    box-shadow: var(--sombra-suave);
}

.tabla-resumen th,
.tabla-verificacion th {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
    color: var(--color-texto);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85em;
    letter-spacing: 0.5px;
    padding: 15px;
    border-bottom: 2px solid var(--color-primario);
}

.tabla-resumen td,
.tabla-verificacion td {
    padding: 15px;
    text-align: center;
    border-bottom: 1px solid var(--color-borde);
    font-size: 0.95em;
}

.tabla-detalles {
    margin-bottom: 30px;
}

.tabla-detalles tr:nth-child(even) {
    background: #f8f9fa;
}

.tabla-detalles tr:hover {
    background: #e3f2fd;
    transition: var(--transicion-rapida);
}

.tabla-detalles td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--color-borde);
}

.tabla-detalles .campo-label {
    width: 40%;
    background: #f8f9fa;
    font-weight: 600;
    color: var(--color-texto-claro);
    border-right: 3px solid var(--color-primario);
}

.tabla-detalles .campo-valor {
    width: 60%;
    font-weight: 500;
}

/* ============================================
   FORMULARIO PRINCIPAL
   ============================================ */

.formulario-censo {
    background: var(--color-blanco);
    padding: 35px;
    border-radius: var(--radio-borde);
    box-shadow: var(--sombra-media);
}

.nota-obligatorios {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border: 1px solid #ffc107;
    padding: 15px 20px;
    margin-bottom: 25px;
    border-radius: var(--radio-borde);
    color: #856404;
    font-size: 0.95em;
}

.asterisco {
    color: var(--color-error);
    font-weight: bold;
    font-size: 1.2em;
}

.separador {
    border: none;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primario), transparent);
    margin: 30px 0;
}

/* Tabla de formulario */

.tabla-formulario {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 8px;
}

.tabla-formulario td {
    padding: 10px;
    vertical-align: middle;
}

.tabla-formulario .campo-label {
    width: 35%;
    font-weight: 600;
    color: var(--color-texto-claro);
    padding-right: 20px;
    text-align: right;
}

.tabla-formulario .campo-input {
    width: 65%;
}

/* Inputs y selects */

.input-texto,
.input-numero,
.select-campo,
.input-readonly {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--color-borde);
    border-radius: 6px;
    font-size: 14px;
    transition: var(--transicion-rapida);
    background: var(--color-blanco);
}

.input-texto:focus,
.input-numero:focus,
.select-campo:focus {
    outline: none;
    border-color: var(--color-primario);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-readonly {
    background: #e9ecef;
    color: var(--color-texto-claro);
    cursor: not-allowed;
}

.select-campo {
    height: 45px;
    cursor: pointer;
}

/* Fecha compuesta */

.fecha-compuesta {
    display: flex;
    gap: 15px;
    align-items: flex-end;
}

.fecha-campo {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.fecha-campo label {
    font-size: 0.8em;
    color: var(--color-texto-claro);
    font-weight: 600;
    text-transform: uppercase;
}

.input-fecha-anio {
    width: 80px;
    padding: 10px;
    border: 2px solid var(--color-borde);
    border-radius: 6px;
    text-align: center;
}

.select-fecha {
    width: 60px;
    padding: 10px;
    border: 2px solid var(--color-borde);
    border-radius: 6px;
}

/* Checkbox group */

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 6px;
    transition: var(--transicion-rapida);
    background: #f8f9fa;
}

.checkbox-label:hover {
    background: #e3f2fd;
    transform: translateX(5px);
}

.input-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primario);
}

/* ============================================
   BOTONES
   ============================================ */

.acciones-formulario,
.acciones-imprimir,
.acciones-busqueda {
    text-align: center;
    margin-top: 35px;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-enviar,
.btn-imprimir,
.btn-buscar,
.btn-guardar {
    background: linear-gradient(135deg, var(--color-primario) 0%, var(--color-secundario) 100%);
    color: var(--color-blanco);
    border: none;
    padding: 15px 35px;
    font-size: 16px;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transicion-media);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-enviar:hover,
.btn-imprimir:hover,
.btn-buscar:hover,
.btn-guardar:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn-enviar:active,
.btn-imprimir:active,
.btn-buscar:active,
.btn-guardar:active {
    transform: translateY(-1px);
}

.btn-cancelar,
.btn-nueva-busqueda,
.btn-volver {
    background: #6c757d;
    color: var(--color-blanco);
    text-decoration: none;
    padding: 15px 35px;
    border-radius: 30px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transicion-rapida);
    font-weight: 500;
    border: 2px solid transparent;
}

.btn-cancelar:hover,
.btn-nueva-busqueda:hover,
.btn-volver:hover {
    background: #5a6268;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(108, 117, 125, 0.3);
}

/* ============================================
   FORMULARIO DE BÚSQUEDA INICIAL
   ============================================ */

.formulario-busqueda-inicial {
    max-width: 500px;
    margin: 40px auto;
    text-align: center;
    background: var(--color-blanco);
    padding: 50px 40px;
    border-radius: 16px;
    box-shadow: var(--sombra-media);
    position: relative;
    overflow: hidden;
}

.formulario-busqueda-inicial::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--color-primario), var(--color-secundario));
}

.logo-universidad {
    margin-bottom: 35px;
}

.logo-universidad h1 {
    color: var(--color-primario);
    margin-bottom: 8px;
    font-size: 2.2em;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo-universidad h2 {
    color: var(--color-secundario);
    margin: 0;
    font-size: 1.1em;
    font-weight: 400;
    opacity: 0.9;
}

.campo-busqueda {
    margin-bottom: 25px;
    text-align: left;
}

.label-busqueda {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--color-texto);
    font-size: 1em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.icono {
    font-size: 1.3em;
}

.input-busqueda {
    width: 100%;
    padding: 16px 18px;
    font-size: 18px;
    border: 2px solid var(--color-borde);
    border-radius: 10px;
    transition: var(--transicion-rapida);
    background: #f8f9fa;
}

.input-busqueda:focus {
    outline: none;
    border-color: var(--color-primario);
    background: var(--color-blanco);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.ayuda-campo {
    display: block;
    margin-top: 8px;
    color: var(--color-texto-claro);
    font-size: 0.85em;
    font-style: italic;
}

/* Instrucciones */

.instrucciones {
    margin-top: 40px;
    text-align: left;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 25px;
    border-radius: 10px;
    border-left: 4px solid var(--color-primario);
}

.instrucciones h3 {
    color: var(--color-primario);
    margin-bottom: 15px;
    font-size: 1.1em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.instrucciones ol {
    padding-left: 20px;
    color: var(--color-texto-claro);
    line-height: 1.8;
    margin: 0;
}

.instrucciones li {
    margin-bottom: 8px;
    position: relative;
}

.instrucciones li::marker {
    color: var(--color-primario);
    font-weight: bold;
}

/* ============================================
   FOOTER Y RELOJ
   ============================================ */

.footer-censo {
    text-align: center;
    margin-top: 50px;
    padding: 30px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: var(--radio-borde);
    border-top: 4px solid var(--color-primario);
    position: relative;
}

.footer-censo::before {
    content: '';
    position: absolute;
    top: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--color-secundario);
}

.reloj-sistema {
    font-size: 1.1em;
    color: var(--color-texto);
    margin-bottom: 12px;
    font-family: 'Courier New', monospace;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 10px 20px;
    background: var(--color-blanco);
    display: inline-block;
    border-radius: 20px;
    box-shadow: var(--sombra-suave);
}

.copyright {
    color: var(--color-primario);
    font-size: 0.9em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   ESTADOS DE CARGA Y DESHABILITADO
   ============================================ */

.cargando {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
}

.cargando::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 30px;
    height: 30px;
    margin: -15px 0 0 -15px;
    border: 3px solid var(--color-borde);
    border-top-color: var(--color-primario);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   IMPRESIÓN
   ============================================ */

@media print {
    .formulario-busqueda-inicial,
    .acciones-formulario,
    .acciones-imprimir,
    .btn-nueva-busqueda,
    .footer-censo,
    .nota-obligatorios {
        display: none !important;
    }
    
    .formulario-censo-container {
        max-width: 100%;
        padding: 0;
    }
    
    .censo-header {
        background: var(--color-primario) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .tabla-detalles,
    .tabla-resumen {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .formulario-censo-container {
        padding: 10px;
    }
    
    .censo-header {
        padding: 20px;
    }
    
    .censo-header h2 {
        font-size: 1.2em;
    }
    
    .tabla-formulario td {
        display: block;
        width: 100%;
        padding: 8px 0;
    }
    
    .tabla-formulario .campo-label {
        text-align: left;
        padding-right: 0;
        padding-bottom: 5px;
        font-size: 0.9em;
    }
    
    .fecha-compuesta {
        flex-direction: column;
        gap: 10px;
    }
    
    .btn-enviar,
    .btn-cancelar,
    .btn-imprimir,
    .btn-buscar {
        width: 100%;
        margin: 5px 0;
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .formulario-censo {
        padding: 20px;
    }
    
    .formulario-busqueda-inicial {
        padding: 30px 20px;
        margin: 20px auto;
    }
    
    .logo-universidad h1 {
        font-size: 1.8em;
    }
    
    .tabla-detalles .campo-label,
    .tabla-detalles .campo-valor {
        width: 50%;
        font-size: 0.9em;
    }
}

@media (max-width: 480px) {
    .tabla-resumen th,
    .tabla-resumen td,
    .tabla-verificacion th,
    .tabla-verificacion td {
        padding: 8px 5px;
        font-size: 0.8em;
    }
    
    .checkbox-group {
        gap: 8px;
    }
    
    .checkbox-label {
        padding: 6px 10px;
        font-size: 0.9em;
    }
}

/* ============================================
   UTILIDADES
   ============================================ */

.texto-centrado {
    text-align: center;
}

.texto-derecha {
    text-align: right;
}

.margin-top-20 {
    margin-top: 20px;
}

.margin-bottom-20 {
    margin-bottom: 20px;
}

.oculto {
    display: none !important;
}

.visible {
    display: block !important;
}

/* Animaciones adicionales */

.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}