/* =====================================================
   Sistema de Registro y Control de Estudiantes
   Centro de Bachillerato Tecnológico Agropecuario No. 261
   Tema: Elegante y Minimalista - PRI
   ===================================================== */

/* Importar fuentes de Google */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&family=Playfair+Display:wght@400;600;700&display=swap');

/* Variables CSS - Paleta Agrícola */
:root {

     /* Colores principales */
    --color-primary: #CE1126;
    --color-primary-light: #cc2f41;
    --color-primary-dark: #CE1126;

  
  
/* Colores secundarios */
   
    --color-secondary: #006B3F;
    --color-secondary-light: #159C64;    
    --color-accent: #159C64;
    --color-accent-light: #004d2e;

    /* Colores principales 
    --color-primary: #006B3F;
    --color-primary-light: #159C64;
    --color-primary-dark: #004d2e;*/

    /* Colores secundarios 
    --color-secondary: #CE1126;
    --color-accent: #CE1126;
    --color-accent-light: #FF4D5B;*/

    /* Colores de fondo */
    --bg-main: #F4F6F9;
    --bg-card: #FFFFFF;
    --bg-sidebar: linear-gradient(180deg, #004d2e 0%, #006B3F 50%, #159C64 100%);

    /* Colores de texto */
    --text-primary: #2A3547;
    --text-secondary: #4A5A75; /* Oscurecido para pasar contraste 4.5:1 (AA) */
    --text-light: #6B7280;     /* Oscurecido para legibilidad en placeholders */
    --text-white: #FFFFFF;

    /* Estados */
    --color-success: #076940;
    --color-warning: #FF9800;
    --color-danger: #CE1126;
    --color-info: #3498DB;

    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 107, 63, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 107, 63, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 107, 63, 0.16);
    --shadow-hover: 0 12px 32px rgba(0, 107, 63, 0.2);

    /* Bordes */
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --border-color: #E5E5E0;

    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Tamaños */
    --sidebar-width: 280px;
    --header-height: 70px;
}

/* =====================================================
   Paletas de Temas Adicionales
   ===================================================== */

/* Tema Tierra (Tonos Arcilla y Marrones) */
:root.theme-earth,
.theme-earth {
    --color-primary: #5D4037;
    --color-primary-light: #8D6E63;
    --color-primary-dark: #3E2723;
    --color-secondary: #388E3C;
    --color-secondary-light: #4CAF50;
    --color-accent: #FF5722;
    --color-accent-light: #FF8A65;
    --bg-main: #EFEBE9;
    --bg-sidebar: linear-gradient(180deg, #3E2723 0%, #5D4037 50%, #8D6E63 100%);
}

/* Tema Agua (Tonos Turquesa y Riego) */
:root.theme-water,
.theme-water {
    --color-primary: #00796B;
    --color-primary-light: #26A69A;
    --color-primary-dark: #004D40;
    --color-secondary: #795548;
    --color-secondary-light: #A1887F;
    --color-accent: #00BCD4;
    --color-accent-light: #80DEEA;
    --bg-main: #E0F2F1;
    --bg-sidebar: linear-gradient(180deg, #004D40 0%, #00796B 50%, #26A69A 100%);
}

/* Tema Cosecha (Tonos Trigo y Otoño) */
:root.theme-harvest,
.theme-harvest {
    --color-primary: #D35400;
    --color-primary-light: #E67E22;
    --color-primary-dark: #A04000;
    --color-secondary: #27AE60;
    --color-secondary-light: #58D68D;
    --color-accent: #F39C12;
    --color-accent-light: #F8C471;
    --bg-main: #FDF2E9;
    --bg-sidebar: linear-gradient(180deg, #A04000 0%, #D35400 50%, #E67E22 100%);
}

/* Tema Bosque (Tonos Verdes y Tierra) */
:root.theme-forest,
.theme-forest {
    --color-primary: #2E7D32;
    --color-primary-light: #4CAF50;
    --color-primary-dark: #1B5E20;
    --color-secondary: #795548;
    --color-secondary-light: #A1887F;
    --color-accent: #AED581;
    --color-accent-light: #C5E1A5;
    --bg-main: #F1F8E9;
    --bg-sidebar: linear-gradient(180deg, #1B5E20 0%, #2E7D32 50%, #4CAF50 100%);
}

/* Tema Atardecer (Tonos Naranja y Púrpura) */
:root.theme-sunset,
.theme-sunset {
    --color-primary: #E65100;
    --color-primary-light: #FB8C00;
    --color-primary-dark: #BF360C;
    --color-secondary: #4527A0;
    --color-secondary-light: #673AB7;
    --color-accent: #FF7043;
    --color-accent-light: #FF8A65;
    --bg-main: #FFF3E0;
    --bg-sidebar: linear-gradient(180deg, #BF360C 0%, #E65100 50%, #FB8C00 100%);
}

/* Tema Piedra (Tonos Grises y Acento Cian) */
:root.theme-stone,
.theme-stone {
    --color-primary: #455A64;
    --color-primary-light: #607D8B;
    --color-primary-dark: #263238;
    --color-secondary: #9E9E9E;
    --color-secondary-light: #BDBDBD;
    --color-accent: #00BCD4;
    --color-accent-light: #4DD0E1;
    --bg-main: #ECEFF1;
    --bg-sidebar: linear-gradient(180deg, #263238 0%, #455A64 50%, #607D8B 100%);
}

/* Reset y Base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Layout Principal */
.app-container {
    display: flex;
    min-height: 100vh;
}


/* Página de Autenticación (Login) */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
    position: relative;
    overflow: hidden;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    z-index: 10;
    box-shadow: var(--shadow-hover);
    border-radius: var(--border-radius-lg);
}

.auth-logo {
    text-align: center;
    margin-bottom: 1.5rem;
}


/* =====================================================
   SweetAlert2 Personalizado
   ===================================================== */
div:where(.swal2-container) {
    z-index: 2000 !important;
}

div:where(.swal2-container).swal2-backdrop-show,
div:where(.swal2-container).swal2-noanimation {
    background: rgba(0, 77, 46, 0.6) !important;
    backdrop-filter: blur(4px);
}

.swal2-popup {
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
    border-radius: var(--border-radius-lg) !important;
    box-shadow: var(--shadow-lg) !important;
    font-family: 'Poppins', sans-serif !important;
    padding: 2em !important;
}

.swal2-title {
    font-family: 'Playfair Display', serif !important;
    color: var(--color-primary-dark) !important;
    font-size: 1.8rem !important;
    font-weight: 600 !important;
}

.swal2-html-container {
    color: var(--text-secondary) !important;
    font-size: 1rem !important;
    margin: 1em 1.6em 0.3em !important;
}

.swal2-actions {
    gap: 12px;
    margin-top: 1.5em !important;
}

.swal2-confirm {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%) !important;
    color: var(--text-white) !important;
    box-shadow: 0 4px 12px rgba(0, 107, 63, 0.3) !important;
    border-radius: var(--border-radius-sm) !important;
    padding: 10px 24px !important;
    font-weight: 500 !important;
    font-size: 0.95rem !important;
    transition: all var(--transition-fast) !important;
    border: none !important;
}

.swal2-cancel {
    background: var(--bg-main) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--border-radius-sm) !important;
    padding: 10px 24px !important;
    font-weight: 500 !important;
    font-size: 0.95rem !important;
    transition: all var(--transition-fast) !important;
}

/* Iconos de SweetAlert adaptados a las variables CSS */
.swal2-icon.swal2-success {
    border-color: var(--color-success) !important;
    color: var(--color-success) !important;
}

.swal2-icon.swal2-success [class^=swal2-success-line] {
    background-color: var(--color-success) !important;
}

.swal2-icon.swal2-success .swal2-success-ring {
    border-color: rgba(76, 175, 80, 0.3) !important;
}

.swal2-icon.swal2-error {
    border-color: var(--color-danger) !important;
    color: var(--color-danger) !important;
}

.swal2-icon.swal2-error [class^=swal2-x-mark-line] {
    background-color: var(--color-danger) !important;
}

.swal2-icon.swal2-warning {
    border-color: var(--color-warning) !important;
    color: var(--color-warning) !important;
}

.swal2-icon.swal2-info {
    border-color: var(--color-info) !important;
    color: var(--color-info) !important;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
}

.sidebar-header {
    padding: 24px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-white);
}

.logo-icon {
    width: 60px;
    height: 60px;
    background-image: url('../../Preinscripcion/favicon.png');
    /* background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%); */
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    /* box-shadow: 0 4px 12px rgba(212, 163, 115, 0.3); */
    transition: transform var(--transition-normal);
    background-size: cover;
    background-position: center;
}

.sidebar-logo:hover .logo-icon {
    transform: scale(1.05) rotate(5deg);
}

.logo-text {
    font-family: 'Playfair Display', serif;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-align: center;
    line-height: 1.3;
}

.logo-text small {
    display: block;
    font-family: 'Poppins', sans-serif;
    font-size: 0.7rem;
    font-weight: 400;
    opacity: 0.8;
    margin-top: 4px;
}

/* Navegación */
.sidebar-nav {
    flex: 1;
    padding: 20px 16px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(255, 255, 255, 0.5);
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-menu {
    list-style: none;
}

.nav-item {
    margin-bottom: 4px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--color-accent);
    transform: scaleY(0);
    transition: transform var(--transition-fast);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-white);
}

.nav-link:hover::before {
    transform: scaleY(1);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-white);
}

.nav-link.active::before {
    transform: scaleY(1);
}

.nav-icon {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

/* Contenido Principal */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.main-header {
    height: var(--header-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Contenido de la Página */
.page-content {
    flex: 1;
    padding: 32px;
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-title i {
    color: var(--color-primary);
}

.card-body {
    padding: 24px;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    right: -20px;
    bottom: -20px;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    opacity: 0.1;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.stat-card.students {
    border-left: 4px solid var(--color-primary);
}

.stat-card.students::after {
    background: var(--color-primary);
}

.stat-card.courses {
    border-left: 4px solid var(--color-accent);
}

.stat-card.courses::after {
    background: var(--color-accent);
}

.stat-card.enrollments {
    border-left: 4px solid var(--color-info);
}

.stat-card.enrollments::after {
    background: var(--color-info);
}

.stat-card.active {
    border-left: 4px solid var(--color-success);
}

.stat-card.active::after {
    background: var(--color-success);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.stat-card.students .stat-icon {
    background: rgba(0, 107, 63, 0.1);
    color: var(--color-primary);
}

.stat-card.courses .stat-icon {
    background: rgba(206, 17, 38, 0.15);
    color: var(--color-accent);
}

.stat-card.enrollments .stat-icon {
    background: rgba(52, 152, 219, 0.1);
    color: var(--color-info);
}

.stat-card.active .stat-icon {
    background: rgba(76, 175, 80, 0.1);
    color: var(--color-success);
}

.stat-info h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Tablas */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.data-table th {
    padding: 14px 16px;
    text-align: left;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-white);
}

.data-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: rgba(0, 107, 63, 0.03);
}

.data-table td {
    padding: 14px 16px;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.data-table td:first-child {
    font-weight: 500;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: rgba(76, 175, 80, 0.15);
    color: var(--color-success);
}

.badge-warning {
    background: rgba(255, 152, 0, 0.15);
    color: var(--color-warning);
}

.badge-danger {
    background: rgba(231, 76, 60, 0.15);
    color: var(--color-danger);
}

.badge-info {
    background: rgba(52, 152, 219, 0.15);
    color: var(--color-info);
}

.badge-secondary {
    background: rgba(206, 17, 38, 0.15);
    color: var(--color-secondary);
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--text-white);
    box-shadow: 0 4px 12px rgba(0, 107, 63, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 16px rgba(0, 107, 63, 0.4);
}

.btn-secondary {
    background: var(--bg-main);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--color-secondary);
    border-color: var(--color-primary);
}

.btn-success {
    background: linear-gradient(135deg, var(--color-success) 0%, #66BB6A 100%);
    color: var(--text-white);
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-danger) 0%, #EF5350 100%);
    color: var(--text-white);
}

.btn-warning {
    background: linear-gradient(135deg, var(--color-warning) 0%, #FFB74D 100%);
    color: var(--text-white);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: 8px;
}

/* Botones de Acción en Tablas */
.action-buttons {
    display: flex;
    gap: 8px;
}

.action-buttons .btn-icon {
    opacity: 0.8;
}

.action-buttons .btn-icon:hover {
    opacity: 1;
}

/* Formularios */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-label .required {
    color: var(--color-danger);
}

.form-control {
    display: block;
    width: 100%;
    padding: 12px 16px;
    font-family: inherit;
    font-size: 0.9rem;
    color: var(--text-primary);
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(0, 107, 63, 0.1);
}

.form-control::placeholder {
    color: var(--text-light);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%235A6A85' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

/* Checkbox personalizado */
.form-check {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.form-check input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

/* Alertas / Flash Messages */
.alert {
    padding: 16px 20px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 24px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    animation: slideIn 0.3s ease;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid rgba(76, 175, 80, 0.3);
    color: #2E7D32;
}

.alert-success i {
    color: var(--color-success);
}

.alert-error {
    background: rgba(231, 76, 60, 0.1);
    border: 1px solid rgba(231, 76, 60, 0.3);
    color: #C62828;
}

.alert-error i {
    color: var(--color-danger);
}

.alert-warning {
    background: rgba(255, 152, 0, 0.1);
    border: 1px solid rgba(255, 152, 0, 0.3);
    color: #E65100;
}

.alert-info {
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid rgba(52, 152, 219, 0.3);
    color: #1565C0;
}

/* Barra de búsqueda */
.search-box {
    position: relative;
    max-width: 400px;
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    font-family: inherit;
    font-size: 0.9rem;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(0, 107, 63, 0.1);
}

.search-box i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

/* Paginación */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background: var(--color-primary);
    color: var(--text-white);
    border-color: var(--color-primary);
}

.pagination .active {
    background: var(--color-primary);
    color: var(--text-white);
    border-color: var(--color-primary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 48px 24px;
}

.empty-state i {
    font-size: 4rem;
    color: var(--text-light);
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-light);
    margin-bottom: 24px;
}

/* Modal de Confirmación */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 400px;
    padding: 24px;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.modal-header i {
    font-size: 1.5rem;
    color: var(--color-warning);
}

.modal-header h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.modal-body {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Detalle de Estudiante */
.profile-header {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 24px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--text-white);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.profile-info h2 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.profile-info p {
    opacity: 0.9;
    font-size: 0.9rem;
}

.profile-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    padding: 24px;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-light);
}

.detail-value {
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* Footer del Sidebar */
.sidebar-footer {
    padding: 16px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.sidebar-footer p {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ==========================================
   Nuevos Componentes Bootstrap 5.3
   ========================================== */

/* Pestañas (Tabs) */
.nav-tabs {
    border-bottom-color: var(--border-color);
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    border: none;
    border-bottom: 2px solid transparent;
    font-weight: 500;
    padding: 10px 16px;
    transition: all var(--transition-fast);
}

.nav-tabs .nav-link:hover {
    color: var(--color-primary);
    border-color: transparent;
}

.nav-tabs .nav-link.active {
    color: var(--color-primary);
    background: transparent;
    border-color: transparent;
    border-bottom: 2px solid var(--color-primary);
}

/* Progreso (Progress) */
.progress {
    background-color: rgba(0, 107, 63, 0.1);
    border-radius: 20px;
    height: 10px;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.progress-bar {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: 20px;
}

.progress-bar.bg-success {
    background: linear-gradient(135deg, var(--color-success) 0%, #66BB6A 100%);
}

.progress-bar.bg-warning {
    background: linear-gradient(135deg, var(--color-warning) 0%, #FFB74D 100%);
}

.progress-bar.bg-danger {
    background: linear-gradient(135deg, var(--color-danger) 0%, #EF5350 100%);
}

/* Menús Desplegables (Dropdowns) */
.dropdown-menu {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-md);
    padding: 8px 0;
}

.dropdown-item {
    padding: 8px 16px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: background var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: rgba(0, 107, 63, 0.05);
    color: var(--color-primary);
}

.dropdown-item.active,
.dropdown-item:active {
    background-color: var(--color-primary);
    color: var(--text-white);
}

/* Acordeón (Accordion) */
.accordion-item {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm) !important;
    margin-bottom: 8px;
    overflow: hidden;
}

.accordion-button {
    background-color: var(--bg-card);
    color: var(--text-primary);
    font-weight: 600;
    box-shadow: none !important;
    padding: 16px 20px;
}

.accordion-button:not(.collapsed) {
    background-color: rgba(0, 107, 63, 0.05);
    color: var(--color-primary);
}

.accordion-button::after {
    /* Colorea la flecha del acordeón (verde primario) */
    filter: brightness(0) saturate(100%) invert(29%) sepia(21%) saturate(1450%) hue-rotate(63deg) brightness(97%) contrast(90%);
}

/* Grupos de Lista (List Group) */
.list-group-item {
    border-color: var(--border-color);
    padding: 12px 16px;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.list-group-item-action:hover,
.list-group-item-action:focus {
    background-color: rgba(0, 107, 63, 0.05);
    color: var(--color-primary);
}

/* Spinners & Text Colors extendidos */
.text-primary {
    color: var(--color-primary) !important;
}

.text-success {
    color: var(--color-success) !important;
}

.text-warning {
    color: var(--color-warning) !important;
}

.text-info {
    color: var(--color-info) !important;
}

.text-danger {
    color: var(--color-danger) !important;
}

.text-sm {
    font-size: 0.85rem;
}

/* ==========================================
   Más Componentes Bootstrap 5.3
   ========================================== */

/* Breadcrumbs */
.breadcrumb-item a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.breadcrumb-item a:hover {
    color: var(--color-primary-light);
    text-decoration: underline;
}

.breadcrumb-item.active {
    color: var(--text-secondary);
}

/* Button Group */
.btn-group .btn {
    border-radius: 0;
}

.btn-group .btn:first-child {
    border-top-left-radius: var(--border-radius-sm);
    border-bottom-left-radius: var(--border-radius-sm);
}

.btn-group .btn:last-child {
    border-top-right-radius: var(--border-radius-sm);
    border-bottom-right-radius: var(--border-radius-sm);
}

/* Carousel */
.carousel-indicators [data-bs-target] {
    background-color: var(--color-primary);
}

.carousel-item {
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

/* Navbar Custom */
.navbar-custom {
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
    border-radius: var(--border-radius-sm);
    padding: 10px 20px;
    border-bottom: 3px solid var(--color-primary);
}

.navbar-custom .nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
    color: var(--color-primary);
}

.navbar-toggler {
    border-color: rgba(0, 107, 63, 0.2);
}

.navbar-toggler-icon {
    filter: invert(30%) sepia(21%) saturate(1450%) hue-rotate(63deg) brightness(97%) contrast(90%);
}

/* Offcanvas */
.offcanvas {
    background-color: var(--bg-main);
    border: none;
    box-shadow: var(--shadow-lg);
}

.offcanvas-header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
}

.offcanvas-title {
    color: var(--color-primary-dark);
    font-family: 'Playfair Display', serif;
    font-weight: 600;
}

/* Popovers */
.popover {
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius-sm);
}

/* ==========================================
   Integración Completa Bootstrap 5.3 Nativos
   Tema: Elegante y Minimalista - Agricultura
   ========================================== */

/* Tablas Nativas Bootstrap (.table) */
.table {
    color: var(--text-primary);
    border-color: var(--border-color);
}

.table> :not(caption)>*>* {
    padding: 1rem 1.2rem;
    border-bottom-color: var(--border-color);
}

.table-light {
    --bs-table-bg: var(--bg-main);
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border-color);
}

.table-dark {
    --bs-table-bg: var(--color-primary-dark);
    --bs-table-color: var(--text-white);
    --bs-table-border-color: var(--color-primary);
}

.table-striped>tbody>tr:nth-of-type(odd)>* {
    --bs-table-bg-type: rgba(0, 107, 63, 0.03);
}

.table-hover>tbody>tr:hover>* {
    --bs-table-bg-state: rgba(0, 107, 63, 0.06);
}

.table-primary {
    --bs-table-bg: rgba(0, 107, 63, 0.05);
    --bs-table-color: var(--color-primary-dark);
    border-color: rgba(0, 107, 63, 0.1);
}

/* Alertas Nativas Bootstrap (.alert-*) */
.alert-primary {
    background-color: rgba(0, 107, 63, 0.1);
    border-color: rgba(0, 107, 63, 0.2);
    color: var(--color-primary-dark);
}

.alert-secondary {
    background-color: rgba(206, 17, 38, 0.1);
    border-color: rgba(206, 17, 38, 0.2);
    color: var(--color-secondary);
}

.alert-success {
    background-color: rgba(76, 175, 80, 0.1);
    border-color: rgba(76, 175, 80, 0.2);
    color: #2E7D32;
}

.alert-danger {
    background-color: rgba(231, 76, 60, 0.1);
    border-color: rgba(231, 76, 60, 0.2);
    color: #C62828;
}

.alert-warning {
    background-color: rgba(255, 152, 0, 0.1);
    border-color: rgba(255, 152, 0, 0.2);
    color: #E65100;
}

.alert-info {
    background-color: rgba(52, 152, 219, 0.1);
    border-color: rgba(52, 152, 219, 0.2);
    color: #1565C0;
}

.alert-light {
    background-color: var(--bg-main);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.alert-dark {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--text-white);
}

/* Badges Nativos (.bg-* / .text-bg-*) */
.bg-primary,
.text-bg-primary {
    background-color: var(--color-primary) !important;
    color: var(--text-white) !important;
}

.bg-secondary,
.text-bg-secondary {
    background-color: var(--color-secondary-light) !important;
    color: var(--text-white) !important;
}

.bg-success,
.text-bg-success {
    background-color: var(--color-success) !important;
    color: var(--text-white) !important;
}

.bg-danger,
.text-bg-danger {
    background-color: var(--color-danger) !important;
    color: var(--text-white) !important;
}

.bg-warning,
.text-bg-warning {
    background-color: var(--color-warning) !important;
    color: var(--bg-card) !important;
}

.bg-info,
.text-bg-info {
    background-color: var(--color-info) !important;
    color: var(--text-white) !important;
}

.bg-dark,
.text-bg-dark {
    background-color: var(--color-primary-dark) !important;
    color: var(--text-white) !important;
}

/* Paginación Nativa Bootstrap (.pagination) */
.page-link {
    color: var(--color-primary);
    background-color: var(--bg-card);
    border-color: var(--border-color);
    border-radius: var(--border-radius-sm);
    margin: 0 4px;
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.page-link:hover,
.page-link:focus {
    color: var(--text-white);
    background-color: var(--color-primary-light);
    border-color: var(--color-primary-light);
    box-shadow: 0 4px 8px rgba(0, 107, 63, 0.2);
}

.page-item.active .page-link {
    z-index: 3;
    color: var(--text-white);
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.page-item.disabled .page-link {
    color: var(--text-light);
    background-color: var(--bg-main);
    border-color: var(--border-color);
}

/* Botones Outline (.btn-outline-*) */
.btn-outline-primary {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus,
.btn-outline-primary:active {
    color: var(--text-white);
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline-secondary {
    color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus,
.btn-outline-secondary:active {
    color: var(--text-white);
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.btn-outline-success {
    color: var(--color-success);
    border-color: var(--color-success);
}

.btn-outline-success:hover,
.btn-outline-success:focus,
.btn-outline-success:active {
    color: var(--text-white);
    background-color: var(--color-success);
    border-color: var(--color-success);
}

.btn-outline-danger {
    color: var(--color-danger);
    border-color: var(--color-danger);
}

.btn-outline-danger:hover,
.btn-outline-danger:focus,
.btn-outline-danger:active {
    color: var(--text-white);
    background-color: var(--color-danger);
    border-color: var(--color-danger);
}

/* Tarjetas (Cards) Adicionales */
.card-footer {
    background-color: rgba(0, 107, 63, 0.02);
    border-top: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
}

.card-img-top,
.card-img-bottom {
    border-radius: calc(var(--border-radius) - 1px);
}

/* Navs y Pills Nativos (.nav-pills) */
.nav-pills .nav-link {
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all var(--transition-fast);
}

.nav-pills .nav-link:hover {
    background-color: rgba(0, 107, 63, 0.05);
    color: var(--color-primary);
}

.nav-pills .nav-link.active,
.nav-pills .show>.nav-link {
    color: var(--text-white) !important;
    background-color: var(--color-primary);
    box-shadow: 0 4px 8px rgba(0, 107, 63, 0.2);
}

/* List Group Nativo (.list-group) */
.list-group {
    border-radius: var(--border-radius-sm);
}

.list-group-item.active {
    z-index: 2;
    color: var(--text-white);
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.list-group-item-primary {
    color: var(--color-primary-dark);
    background-color: rgba(0, 107, 63, 0.1);
}

/* Imágenes (Thumbnails) */
.img-thumbnail {
    padding: 0.25rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    max-width: 100%;
    height: auto;
    box-shadow: var(--shadow-sm);
}

.popover-header {
    background-color: rgba(0, 107, 63, 0.05);
    color: var(--color-primary-dark);
    border-bottom: 1px dashed var(--border-color);
    font-weight: 600;
}

/* Toasts */
.toast {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-sm);
}

.toast-header {
    background-color: rgba(0, 107, 63, 0.05);
    border-bottom: 1px solid var(--border-color);
    color: var(--color-primary-dark);
    font-weight: 600;
}

/* Tooltips */
.tooltip-inner {
    background-color: var(--color-primary-dark);
    color: var(--text-white);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    font-size: 0.8rem;
}

.tooltip.bs-tooltip-top .tooltip-arrow::before {
    border-top-color: var(--color-primary-dark);
}

.tooltip.bs-tooltip-bottom .tooltip-arrow::before {
    border-bottom-color: var(--color-primary-dark);
}

.tooltip.bs-tooltip-start .tooltip-arrow::before {
    border-left-color: var(--color-primary-dark);
}

.tooltip.bs-tooltip-end .tooltip-arrow::before {
    border-right-color: var(--color-primary-dark);
}

/* Close Button */
.btn-close:focus {
    box-shadow: 0 0 0 0.25rem rgba(0, 107, 63, 0.25);
}

/* Placeholders */
.placeholder {
    background-color: var(--text-light);
}

/* Scrollspy nav overrides */
.nav-pills .nav-link.active {
    background-color: var(--color-primary);
    color: var(--text-white) !important;
}

/* Modal nativo de Bootstrap overrides */
.modal-content {
    border-radius: var(--border-radius-lg);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
}

.modal-footer {
    border-top: 1px solid var(--border-color);
}

/* ==========================================
   Controles de Formulario Extendidos
   ========================================== */

/* Checks & Radios */
.form-check-input:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.form-check-input:focus {
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 0.25rem rgba(0, 107, 63, 0.25);
}

/* Range (Controles deslizantes) */
.form-range::-webkit-slider-thumb {
    background-color: var(--color-primary);
}

.form-range::-webkit-slider-thumb:active {
    background-color: var(--color-primary-light);
}

.form-range:focus::-webkit-slider-thumb {
    box-shadow: 0 0 0 1px #fff, 0 0 0 0.25rem rgba(0, 107, 63, 0.25);
}

/* Input Group */
.input-group-text {
    background-color: rgba(0, 107, 63, 0.05);
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 500;
}

.input-group>.form-control:focus,
.input-group>.form-select:focus {
    z-index: 3;
}

/* Floating Labels */
.form-floating>.form-control:focus~label,
.form-floating>.form-control:not(:placeholder-shown)~label,
.form-floating>.form-select~label {
    color: var(--color-primary);
}

/* Validation States */
.form-control.is-valid,
.was-validated .form-control:valid {
    border-color: var(--color-success);
}

.form-control.is-valid:focus,
.was-validated .form-control:valid:focus {
    box-shadow: 0 0 0 0.25rem rgba(76, 175, 80, 0.25);
}

.form-control.is-invalid,
.was-validated .form-control:invalid {
    border-color: var(--color-danger);
}

.form-control.is-invalid:focus,
.was-validated .form-control:invalid:focus {
    box-shadow: 0 0 0 0.25rem rgba(231, 76, 60, 0.25);
}

/* Decoración agrícola */
.leaf-decoration {
    position: absolute;
    opacity: 0.05;
    font-size: 10rem;
    pointer-events: none;
    z-index: 0;
}

.leaf-decoration.top-right {
    top: -20px;
    right: -20px;
    transform: rotate(45deg);
}

.leaf-decoration.bottom-left {
    bottom: -20px;
    left: -20px;
    transform: rotate(-45deg);
}

/* Responsive */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        width: 260px;
    }

    .sidebar.active, .sidebar.show {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 900;
        opacity: 0;
        transition: opacity var(--transition-normal);
    }

    .sidebar-overlay.show, .sidebar-overlay.active {
        display: block;
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .page-content {
        padding: 16px;
    }

    .main-header {
        padding: 0 16px;
    }

    .header-title {
        font-size: 1.25rem;
    }

    .card-header {
        padding: 16px;
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .card-body {
        padding: 16px;
    }

    .stat-card {
        padding: 16px;
    }

    .stat-info h3 {
        font-size: 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .data-table {
        font-size: 0.85rem;
    }

    .data-table th,
    .data-table td {
        padding: 10px 12px;
    }

    .action-buttons {
        flex-wrap: wrap;
    }
}

@media (max-width: 576px) {
    html {
        font-size: 14px;
    }

    .auth-card {
        margin: 0 16px;
    }

    .header-actions {
        gap: 8px;
    }

    .search-box {
        max-width: 100%;
    }

    .pagination {
        flex-wrap: wrap;
    }

    .profile-header {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }

    .modal {
        padding: 16px;
    }
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.slide-up {
    animation: slideUp 0.5s ease;
}

/* Hover Effects para Cards */
.card.hoverable:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-main);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Utilidades */
.text-center {
    text-align: center;
}

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

.text-muted {
    color: var(--text-light);
}

.mt-2 {
    margin-top: 0.5rem;
}

.mt-4 {
    margin-top: 1rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.align-center {
    align-items: center;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-4 {
    gap: 1rem;
}

/* Estilos exclusivos para la presentación de este UI Kit */
.ui-kit-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}

.ui-kit-header {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
    color: var(--text-white);
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 3rem;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.section-title {
    font-family: 'Playfair Display', serif;
    color: var(--color-primary-dark);
    border-bottom: 2px dashed var(--color-accent);
    padding-bottom: 10px;
    margin: 3rem 0 1.5rem 0;
}

.showcase-box {
    background-color: transparent;
}