/**
 * style.css
 * Hoja de estilos principal para Señales USA.
 * Sigue estándares MUTCD y de accesibilidad (contraste elevado, tipografía Highway Gothic - Overpass).
 */

@import url('https://fonts.googleapis.com/css2?family=Overpass:wght@300;400;600;700;800;900&display=swap');

/* Variables de Temas y Colores MUTCD */
:root {
    /* Paleta Oficial */
    --color-green: #006747;       /* Guía */
    --color-yellow: #FFCD00;      /* Advertencia */
    --color-orange: #F26522;      /* Construcción */
    --color-brown: #795548;       /* Recreación */
    --color-blue: #0038A8;        /* Servicios */
    --color-red: #C8102E;         /* Reguladoras */
    
    /* Tema Claro (Por Defecto) */
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --btn-secondary-bg: #e2e8f0;
    --btn-secondary-text: #0f172a;
}

/* Tema Oscuro (Modo Noche en Cabina) */
body.dark-mode {
    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --btn-secondary-bg: #334155;
    --btn-secondary-text: #f8fafc;
}

/* Reglas Generales */
html, body {
    margin: 0;
    padding: 0;
    font-family: 'Overpass', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s, color 0.3s;
    line-height: 1.5;
}

/* Layout y Contenedores */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

main {
    flex: 1;
    padding: 40px 0;
}

/* Cabecera y Navegación */
header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s, border-color 0.3s;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo Oficial (Estilo Letrero de Autopista Verde) */
.logo-container {
    text-decoration: none;
    display: inline-block;
}

.logo-sign {
    background-color: var(--color-green);
    color: #ffffff;
    padding: 6px 14px;
    border-radius: 4px;
    border: 2px solid #ffffff;
    outline: 1.5px solid var(--color-green);
    font-weight: 900;
    font-size: 16px;
    letter-spacing: 0.5px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.logo-sign-small {
    font-size: 9px;
    display: block;
    opacity: 0.85;
    font-weight: 600;
    margin-bottom: 1px;
}

/* Navegación y Enlaces */
nav, .nav-menu {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-links {
    display: flex;
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 15px;
    transition: color 0.2s;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--color-green);
}

body.dark-mode .nav-links a:hover, body.dark-mode .nav-links a.active {
    color: #4ade80; /* Tono verde más claro en modo oscuro para contraste */
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 800;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    font-family: inherit;
    gap: 6px;
}

.btn-primary {
    background-color: var(--color-green);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #004d34;
}

.btn-secondary {
    background-color: var(--btn-secondary-bg);
    color: var(--btn-secondary-text);
}

.btn-secondary:hover {
    opacity: 0.9;
}

.btn-danger {
    background-color: var(--color-red);
    color: #ffffff;
}

.btn-danger:hover {
    background-color: #a60d26;
}

.btn-warning {
    background-color: var(--color-yellow);
    color: #000000;
}

.btn-warning:hover {
    background-color: #e5b800;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

/* Toggle Modo Noche */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.2s;
}

.theme-toggle:hover {
    background-color: var(--border-color);
}

/* Alertas */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.5;
    border: 1px solid transparent;
}

.alert-warning {
    background-color: #fffbeb;
    border-color: #fde047;
    color: #854d0e;
}

.alert-danger {
    background-color: #fef2f2;
    border-color: #fca5a5;
    color: #b91c1c;
}

.alert-success {
    background-color: #f0fdf4;
    border-color: #86efac;
    color: #166534;
}

/* Landing Page (Hero) */
.hero {
    text-align: center;
    padding: 60px 0;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 42px;
    font-weight: 900;
    margin: 0 0 20px 0;
    line-height: 1.2;
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    margin: 0 0 32px 0;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.feature-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    text-align: left;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 800;
    margin: 0 0 10px 0;
    color: var(--color-green);
}

body.dark-mode .feature-card h3 {
    color: #4ade80;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

/* Sección Academia */
.section-header {
    margin-bottom: 30px;
}

.section-header h2 {
    font-size: 28px;
    font-weight: 800;
    margin: 0 0 8px 0;
}

.section-header p {
    color: var(--text-secondary);
    margin: 0;
}

/* Filtros y Búsqueda */
.filter-bar {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 16px;
    border-radius: 8px;
}

@media(min-width: 768px) {
    .filter-bar {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.filter-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--color-green);
    color: #ffffff;
    border-color: var(--color-green);
}

.search-box {
    position: relative;
    max-width: 300px;
    width: 100%;
}

.search-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 14px;
    box-sizing: border-box;
    background-color: var(--bg-body);
    color: var(--text-primary);
}

/* Cuadrícula de Señales */
.signs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

/* Tarjeta de Señal */
.sign-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.sign-card-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--color-yellow);
    color: #000000;
    font-size: 9px;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 10px;
    letter-spacing: 0.5px;
}

.sign-visual-box {
    background-color: var(--bg-body);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    height: 140px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 14px;
    padding: 10px;
}

/* Forzar ajuste proporcional en cualquier SVG (incluidos los subidos por el usuario) */
.sign-visual-box svg,
.exam-sidebar-card svg {
    max-width: 100% !important;
    max-height: 100% !important;
    width: 100% !important;
    height: 100% !important;
    display: block;
}

.sign-svg {
    max-height: 100%;
    max-width: 100%;
    height: 110px;
}

.sign-details {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.sign-title-en {
    font-size: 16px;
    font-weight: 900;
    margin: 0 0 2px 0;
}

.sign-title-es {
    font-size: 14px;
    font-style: italic;
    color: var(--text-secondary);
    margin: 0 0 10px 0;
}

.sign-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0 0 16px 0;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Audio Pronunciación */
.audio-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
}

.audio-btn-row {
    display: flex;
    gap: 8px;
}

.audio-btn-row .btn {
    flex: 1;
}

/* Modo Cabin Booster */
.cabin-booster-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-body);
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    border: 1px solid var(--border-color);
}

.cabin-booster-toggle input {
    cursor: pointer;
    accent-color: var(--color-green);
}

/* Bloqueo Premium en Tarjeta */
.premium-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.75);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #ffffff;
    padding: 20px;
    text-align: center;
    backdrop-filter: blur(2px);
    z-index: 10;
}

.premium-overlay p {
    font-size: 13px;
    margin: 8px 0 14px 0;
    opacity: 0.9;
}

/* Simulador de Examen */
.exam-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 20px;
}

@media(min-width: 992px) {
    .exam-layout {
        grid-template-columns: 1.2fr 2fr;
    }
}

.exam-sidebar-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 250px;
}

.exam-question-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

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

.progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 8px;
}

.progress-bar-container {
    background-color: var(--border-color);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    background-color: var(--color-green);
    height: 100%;
    width: 0%;
    transition: width 0.3s ease;
}

.question-text-block {
    margin-bottom: 24px;
}

.question-en {
    font-size: 18px;
    font-weight: 800;
    margin: 0 0 8px 0;
}

.question-es {
    font-size: 15px;
    font-style: italic;
    color: var(--text-secondary);
    margin: 0;
}

/* Opciones de Examen */
.options-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.option-item {
    position: relative;
}

.option-item input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    margin: 0;
    z-index: 2;
}

.option-label {
    display: block;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-body);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s;
    cursor: pointer;
    user-select: none;
}

.option-item input[type="radio"]:hover + .option-label {
    border-color: var(--color-green);
    background-color: rgba(0, 103, 71, 0.05);
}

.option-item input[type="radio"]:checked + .option-label {
    background-color: rgba(0, 103, 71, 0.1);
    border-color: var(--color-green);
    outline: 1.5px solid var(--color-green);
}

/* Retroalimentación del Examen */
.feedback-box {
    margin-bottom: 24px;
    padding: 16px;
    border-radius: 6px;
    font-size: 14px;
    border-left: 5px solid transparent;
}

.feedback-box.correct {
    background-color: #f0fdf4;
    border-color: var(--color-green);
    color: #166534;
}

.feedback-box.incorrect {
    background-color: #fef2f2;
    border-color: var(--color-red);
    color: #b91c1c;
}

.feedback-title {
    font-weight: 800;
    font-size: 15px;
    margin-bottom: 6px;
}

.explanation-block {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed rgba(0,0,0,0.1);
    font-size: 13px;
}

body.dark-mode .explanation-block {
    border-top-color: rgba(255,255,255,0.1);
}

/* Formulario e Inicios de Sesión */
.auth-container {
    max-width: 420px;
    width: 100%;
    margin: 40px auto;
}

.auth-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    box-shadow: var(--shadow-sm);
}

.auth-card h2 {
    font-size: 24px;
    font-weight: 800;
    margin: 0 0 6px 0;
    text-align: center;
}

.auth-card p.subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0 0 24px 0;
    text-align: center;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    font-family: inherit;
    font-size: 14px;
    box-sizing: border-box;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--bg-body);
    color: var(--text-primary);
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-green);
}

.auth-footer {
    text-align: center;
    font-size: 13px;
    margin-top: 20px;
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--color-green);
    text-decoration: none;
    font-weight: 700;
}

/* Seccion Noticias */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.news-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s;
}

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

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    font-weight: 800;
    margin-bottom: 10px;
}

.news-source {
    background-color: #f1f5f9;
    color: #475569;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
}

body.dark-mode .news-source {
    background-color: #334155;
    color: #cbd5e1;
}

.news-date {
    color: var(--text-secondary);
}

.news-title {
    font-size: 17px;
    font-weight: 800;
    margin: 0 0 10px 0;
    line-height: 1.3;
}

.news-summary {
    font-size: 13.5px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
    flex: 1;
}

/* Página de Pago (Stripe/PayPal Mockup) */
.checkout-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media(min-width: 768px) {
    .checkout-layout {
        grid-template-columns: 1fr 1.2fr;
    }
}

.checkout-summary-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.price-box {
    margin: 20px 0;
    padding: 16px;
    background-color: rgba(0, 103, 71, 0.05);
    border-radius: 6px;
    text-align: center;
}

.price-box .currency {
    font-size: 24px;
    font-weight: 600;
}

.price-box .amount {
    font-size: 48px;
    font-weight: 900;
    color: var(--color-green);
}

body.dark-mode .price-box .amount {
    color: #4ade80;
}

.price-box .period {
    color: var(--text-secondary);
    font-size: 14px;
}

.checkout-form-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

/* Tarjeta de Crédito Simulada */
.credit-card-mock {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border: 1px solid #334155;
    color: #ffffff;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.card-chip {
    width: 40px;
    height: 30px;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    border-radius: 4px;
    margin-bottom: 24px;
}

.card-number-display {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 16px;
    font-family: monospace;
}

.card-meta-display {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    text-transform: uppercase;
    opacity: 0.8;
}

.stripe-elements-container {
    border: 1px solid var(--border-color);
    padding: 16px;
    border-radius: 6px;
    margin-bottom: 20px;
    background-color: var(--bg-body);
}

.card-input-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 12px;
    margin-top: 12px;
}

/* Admin Dashboard Table */
.admin-table-container {
    overflow-x: auto;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    margin-top: 20px;
}

table.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    text-align: left;
}

table.admin-table th, table.admin-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

table.admin-table th {
    background-color: var(--btn-secondary-bg);
    font-weight: 800;
    color: var(--text-primary);
}

table.admin-table tr:last-child td {
    border-bottom: none;
}

.badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-info {
    background-color: #dbeafe;
    color: #1e40af;
}

/* Pie de Página */
footer {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
    text-align: center;
    font-size: 13.5px;
    color: var(--text-secondary);
    margin-top: 40px;
    transition: background-color 0.3s, border-color 0.3s;
}

footer p {
    margin: 4px 0;
}

/* ==========================================
   Responsividad y Adaptabilidad Móvil
   ========================================== */

/* Estilos de Controladores del Navbar */
.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 101;
}

.menu-toggle .hamburger-bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Animación de la Hamburguesa */
.menu-toggle.open .hamburger-bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.menu-toggle.open .hamburger-bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle.open .hamburger-bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Reglas para pantallas grandes (Escritorio) */
@media (min-width: 993px) {
    .nav-menu {
        margin-left: auto;
        margin-right: 20px;
    }
}

/* Reglas para pantallas medianas/pequeñas (Móvil y Tablet) */
@media (max-width: 992px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-card);
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        gap: 16px;
        box-shadow: var(--shadow-md);
        z-index: 99;
        margin: 0;
        align-items: stretch;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 6px;
    }

    .nav-links a {
        display: block;
        padding: 10px 0;
        font-size: 16px;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-links a:hover, .nav-links a.active {
        border-bottom-color: var(--color-green);
    }

    body.dark-mode .nav-links a:hover, body.dark-mode .nav-links a.active {
        border-bottom-color: #4ade80;
    }

    .nav-actions {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: 10px;
        padding-top: 10px;
    }

    .nav-actions .btn, .nav-actions .badge {
        width: 100%;
        box-sizing: border-box;
        text-align: center;
        justify-content: center;
    }
}

/* Reglas para pantallas muy pequeñas (Móvil Portrait) */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    main {
        padding: 24px 0;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .hero-actions .btn {
        width: 100%;
        box-sizing: border-box;
    }
}

/* Espacio superior adicional en páginas secundarias (evitar colisión con el header) */
body:not(.page-index) main {
    padding-top: 60px;
}

@media (min-width: 768px) {
    body:not(.page-index) main {
        padding-top: 80px;
    }
}

/* ==========================================================================
   LAYOUT DEL PANEL DE ADMINISTRACIÓN (SIDEBAR Y CONTENIDO GRID)
   ========================================================================== */
.admin-dashboard-layout {
    display: flex;
    gap: 30px;
    position: relative;
    align-items: start;
    margin-top: 20px;
}

.admin-sidebar {
    width: 260px;
    flex-shrink: 0;
    position: sticky;
    top: 100px;
    align-self: start;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    z-index: 10;
}

.admin-sidebar-title {
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin-bottom: 20px;
    border-bottom: 1.5px solid var(--border-color);
    padding-bottom: 10px;
    padding-left: 10px;
}

.admin-sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.admin-sidebar-menu li {
    margin: 0;
    padding: 0;
}

.admin-sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.25s ease;
    border: 1px solid transparent;
}

.admin-sidebar-menu a:hover {
    background: rgba(0, 103, 71, 0.08);
    color: var(--color-green);
    transform: translateX(4px);
}

body.dark-mode .admin-sidebar-menu a:hover {
    background: rgba(74, 222, 128, 0.08);
    color: #4ade80;
}

.admin-sidebar-menu a.active {
    background: var(--color-green);
    color: #ffffff;
    border-color: var(--color-green);
    box-shadow: 0 4px 6px -1px rgba(0, 103, 71, 0.2);
}

body.dark-mode .admin-sidebar-menu a.active {
    background: #006747;
    color: #ffffff;
    border-color: #006747;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
}

.admin-main-content {
    flex: 1;
    min-width: 0; /* previene desbordamiento de las tablas */
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Sección específica de Administración */
.admin-section {
    scroll-margin-top: 100px; /* margen para el header pegajoso al hacer scroll */
}

/* Botón flotante FAB para móvil */
.admin-mobile-nav-toggle {
    display: none;
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--color-green);
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 12px rgba(0, 103, 71, 0.4);
    z-index: 1001;
    cursor: pointer;
    font-size: 24px;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.admin-mobile-nav-toggle:active {
    transform: scale(0.9);
}

/* Responsividad para móviles y tablets */
@media (max-width: 991px) {
    .admin-dashboard-layout {
        flex-direction: column;
        gap: 0;
    }
    
    .admin-sidebar {
        position: fixed;
        top: 0;
        left: -300px; /* ocultar fuera de pantalla por la izquierda */
        width: 280px;
        height: 100%;
        box-sizing: border-box;
        border: none;
        border-radius: 0;
        z-index: 1000;
        background-color: var(--bg-card);
        border-right: 1px solid var(--border-color);
        padding-top: 100px; /* espacio para la cabecera */
        overflow-y: auto;
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.15);
    }
    
    .admin-sidebar.open {
        left: 0; /* deslizar hacia adentro */
    }
    
    .admin-mobile-nav-toggle {
        display: flex;
    }
    
    .admin-main-content {
        width: 100%;
    }
    
    /* Overlay translúcido de fondo para cuando el menú móvil está abierto */
    .admin-sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background-color: rgba(15, 23, 42, 0.6);
        backdrop-filter: blur(4px);
        z-index: 999;
    }
    
    .admin-sidebar-overlay.active {
        display: block;
    }
}