/* PALETA UNIVERSIDAD MAG */
:root {
    /* Paleta Premium Optimizada */
    --color-principal: #E3521B; /* Naranja ligeramente más profundo */
    --color-oscuro: #B73D12;    
    --color-fondo-base: #FAFAFA; /* Blanco roto muy sutil para mayor elegancia */
    --color-crema: #F2EEEC;      
    --color-texto: #2C2C2C;      /* Gris marengo para no cansar la vista */
    --color-texto-claro: #FFFFFF;
    --sombra: rgba(227, 82, 27, 0.08); /* Sombra más sutil y extendida */
    
    --color-tarjeta: #FFFFFF;
    --color-header: rgba(250, 250, 250, 0.85); /* Mayor transparencia para Glassmorphism */
    --color-borde: rgba(0, 0, 0, 0.04);
    --color-nav-bg: rgba(255, 255, 255, 0.7);
    --color-hover: rgba(227, 82, 27, 0.04);
    --color-descripcion-bg: #FDFDFD;
    --blanco: #FFFFFF;
    --cursor-glow: rgba(255, 255, 255, 0.75);
}

/* Adaptación Modo Oscuro con esta paleta */
.dark-mode {
    --color-fondo-base: #0B0B0B; /* Negro más abisal */
    --color-crema: #141414;
    --color-texto: #EAEAEA;
    --sombra: rgba(0, 0, 0, 0.6);
    
    --color-tarjeta: #141414;
    --color-header: rgba(11, 11, 11, 0.85);
    --color-borde: rgba(255, 255, 255, 0.05);
    --color-nav-bg: rgba(20, 20, 20, 0.6);
    --color-hover: rgba(227, 82, 27, 0.08);
    --color-descripcion-bg: #1A1A1A;
    --blanco: #FFFFFF;
    --cursor-glow: rgba(0, 0, 0, 0.85);
}
/* HERO BANNER ESTILO UNIVERSIDAD MAG */
.hero-orange {
    background-color: var(--color-principal);
    width: 100%;
    margin-bottom: 50px;
    padding: 60px 0;
    display: flex;
    justify-content: center;
    color: white;
}
.hero-content {
    max-width: 1200px;
    width: 90%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.hero-text h2 {
    font-size: 5rem;
    font-weight: 900;
    line-height: 0.9;
    margin: 0;
    color: white;
    font-family: 'Montserrat', sans-serif;
}
.hero-text p {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    font-size: 1.8rem;
    margin-top: 10px;
}
.hero-image img {
    height: 400px;
    width: 320px;
    object-fit: cover;
    border: 5px solid white;
    box-shadow: 20px 20px 0px rgba(0,0,0,0.1);
}
@media (max-width: 768px) {
    .hero-content { flex-direction: column; text-align: center; }
    .hero-text h2 { font-size: 3rem; }
    .hero-image { margin-top: 30px; }
}

/* Header y navegación */
.main-header {
    background: var(--color-fondo-base);
    height: 80px;
    border-bottom: 1px solid #EEEEEE;
    box-shadow: none;
}
.branding-area {
    display: flex;
    align-items: center;
    cursor: pointer;
    gap: 20px;
}
.title-group h1 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-texto);
    letter-spacing: 0.5px;
}
.title-group span {
    font-family: 'Montserrat', sans-serif;
    color: var(--color-principal);
    font-size: 1.1rem;
    font-weight: 800;
}
.categories-nav button {
    font-weight: 700;
    color: var(--color-texto);
    font-size: 0.85rem;
    padding: 10px 15px;
    border-radius: 25px; /* Bordes redondeados */
    border: none;
    transition: all 0.3s ease;
}
.categories-nav button.active {
    color: #ffffff;
    background: var(--color-principal);
    border: none;
    border-radius: 25px; /* Bordes redondeados también al presionarlos */
    box-shadow: 0 4px 12px var(--sombra);
}

/* Lecciones y detalles */
.lesson-number {
    color: var(--color-principal);
    opacity: 1;
}
.course-header:hover {
    border-color: var(--color-principal);
}
.description-section {
    border-left: 4px solid var(--color-principal);
}

/* Botones premium y admin */
.btn-login-premium, .btn-primary, .btn-admin-action {
    background: var(--color-principal);
    border-radius: 4px;
}
.btn-login-premium:hover {
    background: var(--color-oscuro);
}

/* ========================================
   CURSOR PERSONALIZADO — DIAMANTE
======================================== */
/* Ocultar el cursor nativo SOLO cuando el cursor personalizado esté activo */
@media (hover: hover) and (pointer: fine) {
    body.has-custom-cursor,
    body.has-custom-cursor *,
    body.has-custom-cursor *::before,
    body.has-custom-cursor *::after {
        cursor: none !important;
    }
}

/* Solo el rombo, sin anillo */
.cursor-dot {
    position: fixed;
    width: 10px;
    height: 10px;
    background: var(--color-principal);
    pointer-events: none;
    z-index: 999999;
    transform: translate(-50%, -50%) rotate(45deg);
    transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
    will-change: left, top;
    box-shadow: 0 0 8px var(--cursor-glow);
}

/* Hover: el rombo crece y brilla más */
body.cursor-hover .cursor-dot {
    transform: translate(-50%, -50%) rotate(45deg) scale(1.8);
    background: var(--color-oscuro);
    box-shadow: 0 0 16px var(--cursor-glow);
}

/* Clic: compresión instantánea */
body.cursor-click .cursor-dot {
    transform: translate(-50%, -50%) rotate(90deg) scale(0.5);
    box-shadow: 0 0 22px var(--cursor-glow);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body { 
    margin: 0;
    min-height: 100vh;
    font-family: 'Montserrat', sans-serif; 
    color: var(--color-texto);
    overflow-x: hidden;

    /* FONDO: vignette+blobs de color cálido en las esquinas */
    background:
        radial-gradient(ellipse 90% 70% at 0% 0%,   rgba(227, 82, 27, 0.09) 0%, transparent 55%),
        radial-gradient(ellipse 75% 55% at 100% 0%,  rgba(183, 61, 18, 0.07) 0%, transparent 55%),
        radial-gradient(ellipse 90% 70% at 100% 100%, rgba(227, 82, 27, 0.09) 0%, transparent 55%),
        radial-gradient(ellipse 75% 55% at 0% 100%,  rgba(183, 61, 18, 0.07) 0%, transparent 55%),
        var(--color-fondo-base);

    position: relative;
    transition: background 0.6s ease, color 0.5s ease;
}

/* Prevenir scroll cuando el menú móvil está abierto */
body.menu-open {
    overflow: hidden;
}

body.dark-mode {
    background:
        radial-gradient(ellipse 90% 70% at 0% 0%,   rgba(227, 82, 27, 0.14) 0%, transparent 55%),
        radial-gradient(ellipse 75% 55% at 100% 0%,  rgba(183, 61, 18, 0.12) 0%, transparent 55%),
        radial-gradient(ellipse 90% 70% at 100% 100%, rgba(227, 82, 27, 0.13) 0%, transparent 55%),
        radial-gradient(ellipse 75% 55% at 0% 100%,  rgba(183, 61, 18, 0.11) 0%, transparent 55%),
        var(--color-fondo-base);
}

/* 2. CAPA DE TEXTURA: patrón SVG de rombos estilo Atelier */
body::before {
    content: "";
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    /* Diamantes repetidos como papel de bocetos de moda */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='56'%3E%3Cpath d='M28 2 L54 28 L28 54 L2 28 Z' fill='none' stroke='rgba(165%2C120%2C103%2C0.1)' stroke-width='0.8'/%3E%3C/svg%3E");
    background-size: 56px 56px;
    z-index: -1;
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.dark-mode body::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='56'%3E%3Cpath d='M28 2 L54 28 L28 54 L2 28 Z' fill='none' stroke='rgba(227%2C82%2C27%2C0.09)' stroke-width='0.8'/%3E%3C/svg%3E");
    opacity: 1;
}

/* 3. Vignette oscuro en las esquinas para profundidad */
body::after {
    content: "";
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(ellipse at center, transparent 55%, rgba(165, 120, 103, 0.07) 100%);
    z-index: -1;
    pointer-events: none;
}

.dark-mode body::after {
    background: radial-gradient(ellipse at center, transparent 50%, rgba(0, 0, 0, 0.35) 100%);
}

/* 3. ELEMENTOS DECORATIVOS ORGÁNICOS (Ramas estilizadas) */
.bg-decoration {
    position: fixed;
    z-index: -1;
    opacity: 0.08;
    pointer-events: none;
    filter: sepia(1) saturate(0.5);
    transition: opacity 0.5s ease, filter 0.5s ease;
}

.dark-mode .bg-decoration {
    opacity: 0.03;
    filter: sepia(1) saturate(0.3) brightness(0.7);
}

.bg-top-right {
    top: -50px;
    right: -50px;
    width: 500px;
    transform: rotate(-15deg);
}

.bg-bottom-left {
    bottom: -100px;
    left: -100px;
    width: 600px;
    transform: rotate(165deg);
}

/* Tipografía elegante para los títulos */
h1, h2, h3 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    color: var(--color-oscuro);
    margin-bottom: 15px;
}

/* --- NUEVA BARRA DE NAVEGACIÓN SUPERIOR --- */

.main-header {
    background: var(--color-header);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-borde);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 90px;
    z-index: 1000;
    padding: 0 30px;
    display: flex;
    align-items: center;
    transition: background-color 0.5s ease, border-color 0.5s ease;
}

.header-container {
    display: flex;
    justify-content: space-between; /* Izquierda: Logo | Centro: Nav | Derecha: Iconos */
    align-items: center;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

/* Área del Logo y Título */
.branding-area {
    display: flex;
    align-items: center;
    cursor: pointer;
    gap: 15px;
}

.logo-header {
    height: 55px;
    width: auto;
    transition: opacity 0.3s ease;
}

/* Forzar uso de variables en componentes clave */
.main-header { background: var(--color-header); }
.course-card { background: var(--color-tarjeta); box-shadow: 0 15px 45px var(--sombra); }
.course-header { background: var(--color-tarjeta); color: var(--color-texto); }
.description-section { background: rgba(200, 156, 140, 0.05); }

/* Ajuste del ícono del botón de tema */
#themeBtn:hover {
    transform: rotate(20deg);
}

.title-group {
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--color-borde);
    padding-left: 15px;
}

.title-group h1 {
    font-size: 1.1rem;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 300;
}

.title-group span {
    font-family: 'Playfair Display', serif;
    font-size: 1.3rem;
    color: var(--color-oscuro);
    line-height: 1;
    font-weight: 600;
}

/* Navegación de Categorías */
.categories-nav {
    display: flex;
    gap: 12px;
    background: var(--color-nav-bg);
    padding: 5px;
    border-radius: 30px;
    border: 1px solid var(--color-borde);
    transition: background-color 0.5s ease, border-color 0.5s ease;
}

.categories-nav button {
    background: transparent;
    color: var(--color-texto);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    padding: 10px 22px;
    border-radius: 25px;
    border: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

/* Efecto al pasar el mouse */
.categories-nav button:hover {
    color: var(--color-oscuro);
    background: var(--color-hover);
}

/* Clase para el botón seleccionado (ACTIVO) */
.categories-nav button.active {
    background: var(--color-principal);
    color: #ffffff;
    box-shadow: 0 4px 12px var(--sombra);
    transition: all 0.5s ease;
}

/* Ajuste de los iconos superiores para que no se encimen */
.top-right-actions {
    position: relative; /* Cambiado de fixed a relative para entrar en el flex del header */
    top: 0;
    right: 0;
    display: flex;
    gap: 10px;
}

/* Botón hamburguesa - Oculto en desktop */
.mobile-menu-toggle {
    display: none;
}

/* Overlay del menú - Oculto en desktop */
.mobile-menu-overlay {
    display: none;
}

/* Ajuste del espacio para contenido respecto al header */
main {
    margin: 0 auto; /* eliminar margen superior extra */
    max-width: 900px;
    padding: 20px;
    padding-top: 110px; /* espacio suficiente para que el contenido no quede oculto bajo el header (header height 90px + 20px buffer) */
}

.welcome-section {
    text-align: center;
    padding: 40px;
}

.welcome-section h2,
.welcome-section p {
    color: var(--color-texto);
    transition: color 0.5s ease;
}

.course-card {
    background: var(--color-tarjeta); 
    margin-bottom: 20px;
    border-radius: 12px; 
    box-shadow: 0 5px 20px var(--sombra);
    border: 1px solid var(--color-borde);
    overflow: hidden;
    transition: background-color 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
}

/* El título donde se hace clic */
.course-header {
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    background: var(--color-tarjeta);
    transition: background-color 0.5s ease, transform 0.3s ease;
}

.course-header:hover {
    background: var(--color-hover);
}

.course-header h3 {
    margin: 0;
    font-size: 1.4rem;
    color: var(--color-oscuro);
}

.toggle-icon {
    font-size: 1.8rem;
    color: var(--color-principal);
    font-weight: 300;
    transition: transform 0.3s ease;
}

/* El contenido (Oculto por defecto) */
.course-content {
    max-height: 0;
    overflow: hidden;
    padding: 0 25px; /* Padding lateral, pero 0 arriba/abajo para que no ocupe espacio */
    opacity: 0;
    transition: all 0.4s ease-in-out;
}

/* Cuando se le da clic (Clase activa generada por JS) */
.course-card.active .course-content {
    max-height: 2000px; /* Un valor alto para que quepa todo el contenido */
    padding: 0 25px 25px 25px; /* Agregamos padding inferior */
    opacity: 1;
}

/* Giramos el ícono suavemente cuando se abre */
.course-card.active .toggle-icon {
    transform: rotate(180deg);
    color: var(--color-oscuro);
}

.course-description {
    line-height: 1.6;
    margin-bottom: 20px;
    padding-top: 10px;
    border-top: 1px solid rgba(200, 156, 140, 0.1); /* Linea divisoria muy sutil */
}

.video-container { 
    position: relative; 
    padding-bottom: 56.25%; 
    height: 0; 
    overflow: hidden; 
    border-radius: 8px;
    background-color: #f4f4f4; /* Fondo mientras carga el video */
}

.video-container iframe, .video-container video {
    position: absolute; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%;
}

/* --- REDISEÑO DE CABECERAS DE CLASE (Estilo Premium) --- */

.course-card {
    border: none;
    background: none;
    box-shadow: none;
    margin-bottom: 25px;
}

.course-header {
    background: var(--color-tarjeta);
    padding: 25px 30px;
    border-radius: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 10px 30px var(--sombra);
    border: 1px solid var(--color-borde);
    transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    z-index: 2;
}

.course-header:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px var(--sombra);
    border-color: var(--color-principal);
}

.lesson-number {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    color: var(--color-principal);
    font-weight: 600;
    margin-right: 20px;
    line-height: 1;
    transition: color 0.5s ease;
}

.dark-mode .lesson-number {
    color: var(--color-principal);
}

.header-left {
    display: flex;
    align-items: center;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lesson-tag {
    display: block;
    text-transform: uppercase;
    font-size: 0.65rem;
    letter-spacing: 2px;
    color: var(--color-principal);
    font-weight: 600;
    margin-bottom: 4px;
}

.course-header h3 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--color-texto);
    letter-spacing: 0.5px;
}

.toggle-icon {
    color: var(--color-principal);
    transition: transform 0.5s ease;
}

/* --- AJUSTE DEL CONTENIDO AL ABRIR --- */

.course-content {
    background: var(--color-tarjeta);
    margin-top: -10px;
    border-radius: 0 0 15px 15px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.5s ease;
    border: 1px solid var(--color-borde);
    border-top: none;
}

.course-card.active .course-content {
    max-height: 2000px;
    opacity: 1;
    padding-top: 25px; /* Espacio para que no choque con la cabecera */
}

.content-inner {
    padding: 30px;
}

/* --- DISEÑO DEL CONTENIDO INTERNO (Premium) --- */

.content-inner {
    padding: 10px 40px 40px 40px; /* Más espacio lateral */
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Sección de descripción */
.description-section {
    background: var(--color-descripcion-bg);
    padding: 25px;
    border-radius: 10px;
    transition: background-color 0.5s ease;
}

.description-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.description-header span {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1.5px;
    font-weight: 600;
    color: var(--color-oscuro);
}

.course-description {
    color: var(--color-texto);
    line-height: 1.8;
    font-size: 0.95rem;
    margin: 0;
}

/* Marco del Video Premium */
.video-wrapper-premium {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.video-frame {
    background: var(--color-tarjeta);
    padding: 12px;
    border-radius: 12px;
    box-shadow: 0 20px 40px var(--sombra);
    border: 1px solid var(--color-borde);
    transition: background-color 0.5s ease, border-color 0.5s ease;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* Ratio 16:9 */
    height: 0;
    overflow: hidden;
    border-radius: 6px;
    background-color: #000; /* Fondo negro mientras carga */
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* El Escudo: Bloquea la parte superior del video donde están los botones de Google */
.video-shield {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%; /* Cubre todo el ancho en desktop */
    height: 60px; /* Cubre solo la franja de arriba donde aparecen los iconos */
    z-index: 10; /* Se pone por encima del iframe */
    background: transparent; /* Invisible pero bloquea el clic */
    cursor: default;
}

/* En móviles/tablets: esquina superior derecha mínima para no interferir con controles */
@media (max-width: 1024px) {
    .video-shield {
        width: 15% !important;
        height: 10% !important;
        right: 0;
        top: 0;
    }
}

/* Ocultar el escudo completamente en modo fullscreen para no bloquear controles nativos */
:-webkit-full-screen .video-shield,
:-moz-full-screen .video-shield,
:fullscreen .video-shield {
    display: none !important;
}

/* Pie de video sutil */
.video-footer {
    margin-top: 15px;
    text-align: center;
}

.video-footer p {
    font-size: 0.7rem;
    color: var(--color-principal);
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.7;
}

/* Ajuste para móviles */
@media (max-width: 600px) {
    .content-inner {
        padding: 10px 20px 30px 20px;
    }
    
    .description-section {
        padding: 15px;
    }
}

.course-card.active .toggle-icon {
    transform: rotate(180deg);
}

.course-card.active .course-header {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    background: var(--color-tarjeta);
}

/* Línea decorativa lateral solo cuando está activa */
.course-card.active .course-header::before {
    content: "";
    position: absolute;
    left: 0;
    top: 20%;
    height: 60%;
    width: 4px;
    background: var(--color-principal);
    border-radius: 0 4px 4px 0;
}

.coming-soon { 
    text-align: center; 
    background: linear-gradient(135deg, var(--color-principal), var(--color-oscuro)); 
    color: var(--blanco); 
    padding: 50px; 
    border-radius: 12px; 
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: all 0.5s ease;
}

.coming-soon h3 {
    color: #ffffff;
    font-size: 2rem;
}

/* Estilos del Panel Admin */
.admin-form { 
    display: flex; 
    flex-direction: column; 
    gap: 15px; 
    background: var(--color-tarjeta); 
    padding: 35px; 
    border-radius: 20px; 
    box-shadow: 0 15px 40px var(--sombra);
    border: 1px solid var(--color-borde);
    transition: background-color 0.5s ease;
}

.admin-form label {
    font-family: 'Playfair Display', serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-oscuro);
    margin-bottom: -5px;
}

.admin-form input, .admin-form textarea, .admin-form select { 
    padding: 16px 20px; 
    border: 1px solid var(--color-borde); 
    border-radius: 12px; 
    font-family: 'Montserrat', sans-serif;
    background: var(--color-fondo-base);
    color: var(--color-texto);
    transition: all 0.3s ease;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.02);
}

.admin-form input:focus, .admin-form textarea:focus, .admin-form select:focus {
    outline: none;
    border-color: var(--color-principal);
    background: var(--blanco);
    box-shadow: 0 0 15px var(--sombra);
    transform: translateY(-2px);
}

/* Placeholders adaptados al tema */
.admin-form input::placeholder,
.admin-form textarea::placeholder {
    color: var(--color-texto);
    opacity: 0.5;
}

.admin-form button { 
    background: linear-gradient(135deg, var(--color-principal), var(--color-oscuro)); 
    color: var(--blanco); 
    padding: 16px 25px; 
    border: none; 
    border-radius: 30px;
    cursor: pointer; 
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-top: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px rgba(227, 82, 27, 0.2);
}

.admin-form button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(227, 82, 27, 0.3);
}

/* --- ESTILOS NUEVOS PARA EL PANEL ADMIN --- */
.admin-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

@media (min-width: 800px) {
    .admin-container {
        grid-template-columns: 1fr 1fr; /* Divide la pantalla en dos columnas en PC */
    }
}

/* Overlay del Modal de Avisos */
.custom-modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(90, 74, 69, 0.6);
    backdrop-filter: blur(4px);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease;
}

.custom-modal-box {
    background: var(--color-tarjeta, #ffffff);
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 15px 35px rgba(0,0,0,0.3);
    transform: translateY(-20px);
    transition: all 0.5s ease;
    border: 1px solid var(--color-principal);
}

.custom-modal-box h3 {
    margin-top: 0;
    color: var(--color-oscuro);
    font-family: 'Playfair Display', serif;
}

.custom-modal-box p {
    margin-bottom: 25px;
    line-height: 1.5;
    color: var(--color-texto);
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

/* Botones del Modal */
.modal-actions button {
    padding: 10px 25px;
    border-radius: 20px;
    border: none;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    transition: 0.3s;
}

.btn-primary {
    background: var(--color-principal);
    color: #ffffff;
    transition: all 0.3s ease;
}
.btn-primary:hover { background: var(--color-oscuro); }

.btn-secondary {
    background: var(--color-nav-bg);
    color: var(--color-texto);
    opacity: 0.7;
    transition: all 0.3s ease;
}
.btn-secondary:hover { 
    background: var(--color-hover); 
    opacity: 1;
}
.admin-list-container {
    background: var(--color-tarjeta);
    padding: 35px;
    border-radius: 20px; /* Bordes suaves */
    box-shadow: 0 15px 40px var(--sombra);
    border: 1px solid var(--color-borde);
    transition: background-color 0.5s ease;
}

.admin-course-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    margin-bottom: 20px; /* Añade más separación que una línea plana */
    border-radius: 12px; /* Las clases registradas ahora son burbujas */
    background: var(--color-fondo-base);
    border: 1px solid var(--color-borde);
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
    transition: all 0.3s ease;
}

.admin-course-item:hover {
    background: var(--color-tarjeta);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px var(--sombra);
    border-color: var(--color-principal);
}

.course-info strong {
    display: block;
    color: var(--color-oscuro);
    margin-bottom: 5px;
}

.badge {
    background: var(--color-principal);
    color: #ffffff;
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 20px;
    text-transform: uppercase;
}

.course-actions {
    display: flex;
    gap: 10px;
}

/* Botones específicos del Admin */
.btn-editar, .btn-eliminar, .btn-cancelar {
    padding: 10px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.btn-editar svg, .btn-eliminar svg {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.btn-editar {
    background-color: transparent;
    color: var(--color-principal);
    transition: all 0.3s ease;
}

/*.btn-editar:hover { 
    background-color: #d68910;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(243, 156, 18, 0.3);
}*/

.btn-editar:hover svg {
    transform: rotate(-10deg) scale(1.1);
}

.btn-eliminar {
    background-color: transparent;
    color: var(--color-principal);
    transition: all 0.3s ease;
}

/*.btn-eliminar:hover { 
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(231, 76, 60, 0.3);
}*/

.btn-eliminar:hover svg {
    transform: scale(1.1);
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: scale(1.1) rotate(0deg); }
    25% { transform: scale(1.1) rotate(-5deg); }
    75% { transform: scale(1.1) rotate(5deg); }
}

.btn-cancelar {
    background-color: #95a5a6;
    color: #ffffff;
    transition: all 0.3s ease;
}
.btn-cancelar:hover { background-color: #7f8c8d; }

.form-buttons {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.form-buttons button {
    flex: 1;
}

/* Botón flotante Admin */
.floating-admin-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    background: var(--color-principal);
    color: #ffffff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    z-index: 1000;
}

.floating-admin-btn:hover {
    transform: scale(1.1);
    background: var(--color-oscuro);
}

/* Botón Volver en Admin */
.btn-volver {
    position: absolute;
    top: 20px;
    left: 20px;
    background: transparent;
    border: 1px solid var(--color-principal);
    color: var(--color-oscuro);
    padding: 8px 15px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    transition: 0.3s;
}
.btn-volver:hover { background: var(--color-fondo); }

/* Botón Añadir Alumna */
.btn-nueva-alumna {
    margin-top: 15px;
    background: var(--color-oscuro);
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
}

/* Modal Estilos */
.modal-overlay {
    display: none; /* Oculto por defecto */
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(90, 74, 69, 0.6);
    backdrop-filter: blur(5px);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    transition: opacity 0.3s ease;
}

.modal-content {
    background: var(--color-tarjeta, #ffffff);
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 450px;
    position: relative;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    transition: background-color 0.5s ease;
}

.close-modal {
    position: absolute;
    top: 15px; right: 20px;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-oscuro);
}

/* Icono flotante admin: posicionamiento y efecto de rotación */
.admin-icon-link {
    position: fixed; /* O absolute, si prefieres que se mueva al hacer scroll */
    top: 25px;
    right: 25px;
    z-index: 1001; /* Por encima de todo */
    background: none;
    border: none;
    color: var(--color-principal); /* El color cobre de tu logo */
    cursor: pointer;
    padding: 8px;
    display: none; /* Se activa por JS si el usuario es admin */
    transition: all 0.4s ease;
    border-radius: 50%;
}

.admin-icon-link:hover {
    color: var(--color-oscuro);
    transform: rotate(90deg); /* Efecto de giro elegante */
    background-color: rgba(200, 156, 140, 0.1); /* Fondo muy sutil al hover */
}

/* Ajuste para móviles */
@media (max-width: 600px) {
    .admin-icon-link {
        top: 15px;
        right: 15px;
    }
}

/* Contenedor en la esquina superior */
.top-right-actions {
    position: relative; /* Ahora forma parte del header flex */
    top: 0;
    right: 0;
    display: flex;
    gap: 10px;
}

.icon-action-btn {
    background: none;
    border: none;
    color: var(--color-principal);
    cursor: pointer;
    padding: 8px;
    transition: all 0.3s ease;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-action-btn svg {
    stroke: currentColor;
    transition: stroke 0.3s ease;
}

.icon-action-btn:hover {
    color: var(--color-oscuro);
    background-color: var(--color-nav-bg);
}

/* Animación específica para el engranaje de admin */
#adminBtn:hover {
    transform: rotate(90deg);
}

/* Animación específica para el logout (un pequeño desplazamiento) */
.logout-icon:hover {
    transform: translateX(3px);
    color: #e74c3c; /* Color rojo sutil solo al pasar el mouse por salir */
}

/* --- ESTILOS ADMIN HEADER --- */
.admin-header {
    background: var(--color-header);
    border-bottom: 1px solid var(--color-borde);
    padding: 15px 40px;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color 0.5s ease, border-color 0.5s ease;
}

.admin-header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Branding Central */
.header-center {
    display: flex;
    align-items: center;
    gap: 15px;
}

.admin-logo-small {
    height: 40px;
}

.admin-title h2 {
    font-size: 0.9rem;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-texto);
}

.admin-title span {
    font-size: 0.7rem;
    color: var(--color-principal);
}

/* Botón Volver Minimalista */
.btn-back-minimal {
    background: none;
    border: none;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #999;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: color 0.3s;
}

.btn-back-minimal:hover {
    color: var(--color-oscuro);
}

/* Botón Acción Principal (Añadir Alumna) */
.btn-admin-action {
    background: linear-gradient(135deg, var(--color-oscuro), #8C2C0B);
    color: #ffffff;
    border: none;
    padding: 10px 22px;
    border-radius: 25px; /* Botón píldora redondeado */
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.btn-admin-action:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 10px 25px rgba(227, 82, 27, 0.2);
}
/* --- OPTIMIZACIÓN PARA MÓVILES (ESTILO ATELIER MOBILE) --- */

/* === TABLETS Y MÓVILES HORIZONTALES (< 1024px) === */
@media (max-width: 1024px) {
    .header-container {
        max-width: 100%;
        padding: 0 20px;
    }
    
    main {
        max-width: 100%;
        padding: 20px 15px;
    }
}

/* === MÓVILES Y TABLETS VERTICALES (< 768px) === */
@media (max-width: 768px) {
    /* OCULTAR BOTONES DEL HEADER EN MÓVIL */
    .header-container .top-right-actions,
    .admin-header-container .header-right {
        display: none !important;
    }

    /* MOVER BOTONES DE ACCIÓN AL PIE (MÓVIL) - FOOTER FLOTANTE CENTRADO */
    body > .top-right-actions,
    body > .header-right,
    .top-right-actions,
    .header-right {
        position: fixed !important;
        bottom: 20px !important;
        left: 50% !important;
        right: auto !important;
        top: auto !important;
        transform: translateX(-50%) !important;
        width: auto !important;
        height: auto !important;
        max-width: none !important;
        background: var(--color-tarjeta);
        padding: 12px 20px;
        border-radius: 50px;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2), 0 2px 8px rgba(0, 0, 0, 0.1);
        border: 1px solid var(--color-borde);
        z-index: 1100 !important;
        gap: 18px;
        display: flex !important;
        flex-direction: row !important;
        align-items: center;
        justify-content: center;
        backdrop-filter: blur(10px);
        transition: all 0.3s ease;
        margin: 0 !important;
    }

    .icon-action-btn {
        width: 52px !important;
        height: 52px !important;
        display: inline-flex !important;
        flex-direction: column !important;
        align-items: center;
        justify-content: center;
        background: var(--color-principal);
        color: #ffffff;
        border-radius: 50%;
        box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        padding: 0 !important;
        min-width: auto !important;
        transition: all 0.3s ease;
    }

    .icon-action-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 16px rgba(0,0,0,0.2);
    }

    .icon-action-btn svg {
        width: 24px !important;
        height: 24px !important;
    }

    /* Estilo especial para el botón de logout */
    .icon-action-btn.logout-icon {
        background: #dc3545 !important;
    }

    /* Estilo especial para el botón de admin */
    #adminBtn {
        background: var(--color-oscuro) !important;
    }

    /* Estilo especial para el botón de tema */
    #themeBtn {
        background: var(--color-nav-bg) !important;
        color: var(--color-principal) !important;
        border: 1px solid var(--color-borde);
    }

    /* Ocultar etiquetas de texto en los botones */
    .icon-action-btn::after {
        display: none !important;
    }

    /* Asegurar que el contenido no quede oculto por la barra inferior */
    main { padding-bottom: 120px; }
    /* TAMAÑOS DE FUENTE BASE AUMENTADOS */
    body {
        font-size: 16px; /* Base más grande para mejor lectura */
        padding-bottom: 80px; /* Espacio para navegación inferior */
    }
    body.login-body {
        padding-bottom: 20px; /* El login no tiene barra de navegación inferior */
    }
    
    /* 1. HEADER MÓVIL COMPACTO */
    .main-header {
        height: 70px;
        padding: 10px 18px;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .header-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        gap: 10px;
    }

    /* Branding más compacto a la izquierda */
    .branding-area {
        gap: 10px;
        justify-content: flex-start;
        flex: 1;
    }

    .logo-header {
        height: 45px;
    }

    .title-group {
        border-left: 1px solid var(--color-borde);
        padding-left: 10px;
        text-align: left;
        display: flex;
        flex-direction: column;
    }

    .title-group h1 { 
        font-size: 0.75rem;
        letter-spacing: 1px;
        margin: 0;
    }
    
    .title-group span { 
        font-size: 0.95rem;
        line-height: 1.2;
    }

    /* 2. NAVEGACIÓN MÓVIL - MENÚ HAMBURGUESA */
    .categories-nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--color-header);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 30px 20px;
        gap: 0;
        border: none;
        border-radius: 0;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 999;
        overflow-y: auto;
        box-shadow: 2px 0 20px var(--sombra);
    }

    .categories-nav.mobile-menu-open {
        transform: translateX(0);
    }

    .categories-nav button {
        width: 100%;
        text-align: left;
        padding: 18px 20px;
        font-size: 1rem;
        border-radius: 12px;
        margin-bottom: 8px;
        border: 1px solid var(--color-borde);
        min-height: 56px;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .categories-nav button::after {
        content: '→';
        font-size: 1.2rem;
        opacity: 0.5;
        transition: transform 0.3s ease;
    }

    .categories-nav button.active::after {
        transform: translateX(5px);
        opacity: 1;
    }

    /* Botón Hamburguesa */
    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        width: 42px;
        height: 42px;
        background: var(--color-principal);
        border: none;
        border-radius: 10px;
        padding: 10px;
        cursor: pointer;
        z-index: 1002;
        transition: all 0.3s ease;
        order: -1;
    }

    .mobile-menu-toggle span {
        width: 100%;
        height: 3px;
        background: #ffffff;
        border-radius: 2px;
        transition: all 0.3s ease;
    }

    .mobile-menu-toggle.active {
        background: var(--color-oscuro);
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    /* Overlay oscuro cuando el menú está abierto */
    .mobile-menu-overlay {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(0, 0, 0, 0.5);
        z-index: 998;
        backdrop-filter: blur(2px);
    }

    .mobile-menu-overlay.active {
        display: block;
    }

    /* 4. CONTENIDO PRINCIPAL */
    main {
        margin-top: 0 !important;
        padding-top: 90px !important; /* Solo espacio para header compacto */
        padding-left: 15px;
        padding-right: 15px;
        padding-bottom: 90px; /* Espacio para navegación inferior */
    }

    .welcome-section {
        padding: 30px 18px;
        background: var(--color-tarjeta);
        border-radius: 15px;
        margin-bottom: 25px;
        box-shadow: 0 10px 30px var(--sombra);
    }

    .welcome-section h2 {
        font-size: 1.8rem; /* Título más grande */
        margin-bottom: 15px;
    }

    .welcome-section p {
        font-size: 1rem; /* Texto más grande */
        line-height: 1.6;
    }

    /* 5. TARJETAS DE CURSO MÓVIL - Diseño de lista optimizado */
    .course-card {
        margin-bottom: 20px;
        border-radius: 15px;
    }

    .course-header {
        padding: 22px 18px;
        border-radius: 15px;
        min-height: 80px;
    }

    .header-left {
        flex-direction: row;
        align-items: center;
        gap: 15px;
        width: 100%;
    }

    .lesson-number { 
        font-size: 2.2rem;
        margin-right: 0;
        position: static;
        opacity: 0.25;
        flex-shrink: 0;
    }

    .title-wrapper {
        flex: 1;
        padding-right: 0;
    }

    .lesson-tag {
        font-size: 0.7rem;
        letter-spacing: 1px;
        display: block;
        margin-bottom: 5px;
    }

    .course-header h3 { 
        font-size: 1.15rem;
        line-height: 1.4;
        margin: 0;
    }

    .header-right {
        margin-left: 0;
        flex-shrink: 0;
    }

    .toggle-icon {
        font-size: 2.2rem;
    }

    /* Contenido expandido */
    .content-inner { 
        padding: 25px 20px;
        gap: 25px;
    }

    .description-section { 
        padding: 22px;
        border-radius: 12px;
    }

    .description-header {
        margin-bottom: 15px;
    }

    .description-header svg {
        width: 20px;
        height: 20px;
    }

    .description-header span {
        font-size: 0.85rem;
    }

    .course-description {
        font-size: 1rem;
        line-height: 1.7;
    }

    /* Video responsive */
    .video-wrapper-premium {
        width: 100vw !important; /* Ancho completo de la pantalla */
        max-width: 100vw !important;
        margin-left: calc(-50vw + 50%) !important; /* Centrar y extender */
        margin-right: calc(-50vw + 50%) !important;
        position: relative;
    }

    .video-frame { 
        padding: 0 !important; /* Sin padding en móvil */
        border-radius: 0 !important; /* Sin bordes redondeados */
        border: none !important;
        box-shadow: none !important;
        background: transparent !important;
    }

    .video-container {
        border-radius: 0 !important;
        padding-bottom: 56.25% !important; /* Mantener ratio 16:9 */
        background-color: #000;
    }

    .video-footer p {
        font-size: 0.7rem;
        margin-top: 12px;
    }

    /* 6. ADMIN PANEL MÓVIL */
    .admin-header {
        padding: 12px 18px;
        position: fixed;
        width: 100%;
        height: 70px;
        display: flex;
        align-items: center;
    }

    .admin-header-container {
        flex-direction: row;
        gap: 10px;
        align-items: center;
        justify-content: space-between;
    }

    .header-left {
        order: 1;
        width: auto;
        justify-content: flex-start;
    }

    .header-center {
        order: 2;
        width: auto;
        flex: 1;
        justify-content: center;
    }

    .header-right {
        order: 3;
        width: auto;
        justify-content: flex-end;
    }

    .admin-logo-small {
        height: 40px;
    }

    .admin-title h2 {
        font-size: 0.75rem;
    }

    .admin-title span {
        font-size: 0.65rem;
    }

    .btn-back-minimal {
        font-size: 0.75rem;
        padding: 8px;
        background: var(--color-principal);
        color: #ffffff;
        border-radius: 10px;
        min-width: 40px;
        justify-content: center;
    }

    .btn-back-minimal span {
        display: none; /* Ocultar texto en móvil */
    }

    .btn-admin-action {
        padding: 10px 16px;
        font-size: 0.8rem;
        min-height: 44px;
        white-space: nowrap;
    }

    /* Admin content */
    .admin-container {
        grid-template-columns: 1fr;
        gap: 25px;
        padding-top: 90px;
        padding-bottom: 30px;
    }

    .admin-form {
        padding: 22px;
        border-radius: 15px;
    }

    .admin-form label {
        font-size: 0.95rem;
        margin-bottom: 8px;
        display: block;
    }

    .admin-form input,
    .admin-form textarea,
    .admin-form select {
        padding: 16px;
        font-size: 1rem;
        min-height: 52px;
        border-radius: 10px;
    }

    .admin-form textarea {
        min-height: 130px;
    }

    .admin-form button {
        padding: 18px;
        font-size: 1rem;
        min-height: 54px;
        border-radius: 10px;
    }

    .admin-list-container {
        padding: 22px;
        border-radius: 15px;
    }

    .admin-course-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        padding: 18px;
        border-radius: 12px;
        background: var(--color-hover);
        border: 1px solid var(--color-borde);
        margin-bottom: 12px;
    }

    .admin-course-item:hover {
        background: var(--color-nav-bg);
    }

    .course-info {
        width: 100%;
    }

    .course-info strong {
        font-size: 1.05rem;
        margin-bottom: 10px;
    }

    .course-info p {
        font-size: 0.9rem;
        line-height: 1.5;
    }

    .badge {
        font-size: 0.75rem;
        padding: 6px 14px;
        margin-top: 8px;
        display: inline-block;
    }

    .course-actions {
        width: 100%;
        justify-content: flex-end;
        gap: 12px;
    }

    .btn-editar,
    .btn-eliminar {
        width: 50px;
        height: 50px;
    }

    .btn-editar svg,
    .btn-eliminar svg {
        width: 24px;
        height: 24px;
    }

    /* 7. MODALES MÓVIL */
    .custom-modal-box {
        width: 92%;
        max-width: none;
        padding: 30px 22px;
        margin: 15px;
        border-radius: 20px;
    }

    .custom-modal-box h3 {
        font-size: 1.5rem;
        margin-bottom: 15px;
    }

    .custom-modal-box p {
        font-size: 1rem;
        margin-bottom: 25px;
        line-height: 1.6;
    }

    .modal-actions {
        flex-direction: column;
        gap: 12px;
    }

    .modal-actions button {
        width: 100%;
        padding: 18px 22px;
        font-size: 1rem;
        min-height: 54px;
        border-radius: 12px;
    }

    .modal-overlay .modal-content {
        width: 92%;
        max-width: none;
        padding: 30px 22px;
        border-radius: 20px;
    }

    .modal-overlay .modal-content h2,
    .modal-overlay .modal-content h3 {
        font-size: 1.4rem;
    }

    .modal-overlay .modal-content label {
        font-size: 0.95rem;
        display: block;
        margin-bottom: 8px;
    }

    .modal-overlay .modal-content input,
    .modal-overlay .modal-content select {
        padding: 16px;
        font-size: 1rem;
        min-height: 52px;
        border-radius: 10px;
    }

    .modal-overlay .modal-content button {
        padding: 18px;
        font-size: 1rem;
        min-height: 54px;
        border-radius: 12px;
    }

    .close-modal {
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        background: var(--color-nav-bg);
    }

    /* 8. FONDOS DECORATIVOS */
    .bg-top-right,
    .bg-bottom-left { 
        display: none; /* Ocultar en móvil para mejor rendimiento */
    }

    /* 9. SECCIÓN COMING SOON */
    .coming-soon {
        padding: 40px 22px;
        margin: 20px 0;
        border-radius: 15px;
    }

    .coming-soon h3 {
        font-size: 1.7rem;
        margin-bottom: 15px;
    }

    .coming-soon p {
        font-size: 1rem;
        line-height: 1.6;
    }

    /* 10. ESTILOS ADICIONALES MÓVIL */
    
    /* Ocultar elementos desktop en móvil */
    .desktop-only {
        display: none !important;
    }

    /* Ajuste de formularios */
    .form-buttons {
        flex-direction: column;
        gap: 12px;
    }

    .form-buttons button {
        width: 100%;
        min-height: 52px;
    }

    /* Mejora de interacciones táctiles */
    * {
        -webkit-tap-highlight-color: rgba(200, 156, 140, 0.2);
    }

    /* Asegurar que los inputs no se desplacen al hacer zoom en iOS */
    input,
    textarea,
    select {
        font-size: 16px !important;
    }
}

/* === MÓVILES PEQUEÑOS (< 480px) === */
@media (max-width: 480px) {
    
    /* Header más compacto */
    .main-header {
        height: 65px;
        padding: 10px 12px;
    }

    .logo-header {
        height: 40px;
    }

    .title-group h1 { 
        font-size: 0.7rem;
    }
    
    .title-group span { 
        font-size: 0.85rem;
    }

    .mobile-menu-toggle {
        width: 38px;
        height: 38px;
        padding: 8px;
    }

    /* Navegación móvil ajustada */
    .categories-nav {
        top: 65px;
        height: calc(100vh - 65px);
        padding: 25px 18px;
    }

    .categories-nav button {
        padding: 16px 18px;
        font-size: 0.95rem;
        min-height: 52px;
    }

    /* Bottom navigation - ajuste solo de tamaño */
    .icon-action-btn {
        width: 50px !important;
        height: 50px !important;
    }

    .icon-action-btn svg {
        width: 22px !important;
        height: 22px !important;
    }

    /* Contenido ajustado */
    main {
        padding-top: 80px !important;
        padding-bottom: 80px;
        padding-left: 12px;
        padding-right: 12px;
    }

    .welcome-section {
        padding: 25px 15px;
        margin-bottom: 20px;
    }

    .welcome-section h2 {
        font-size: 1.5rem;
    }

    .welcome-section p {
        font-size: 0.95rem;
    }

    /* Tarjetas más compactas pero legibles */
    .course-card {
        margin-bottom: 18px;
    }

    .course-header {
        padding: 18px 15px;
        min-height: 75px;
    }

    .lesson-number { 
        font-size: 2rem;
    }

    .lesson-tag {
        font-size: 0.65rem;
    }

    .course-header h3 { 
        font-size: 1.05rem;
    }

    .toggle-icon {
        font-size: 2rem;
    }

    .content-inner { 
        padding: 20px 15px;
        gap: 20px;
    }

    .description-section { 
        padding: 18px;
    }

    .description-header span {
        font-size: 0.75rem;
    }

    .course-description {
        font-size: 0.95rem;
    }

    .video-wrapper-premium {
        width: 100vw !important;
        max-width: 100vw !important;
        margin-left: calc(-50vw + 50%) !important;
        margin-right: calc(-50vw + 50%) !important;
    }

    .video-frame { 
        padding: 0 !important;
        border-radius: 0 !important;
        border: none !important;
        box-shadow: none !important;
    }

    /* Modales compactos */
    .custom-modal-box {
        width: 94%;
        padding: 25px 18px;
    }

    .custom-modal-box h3 {
        font-size: 1.3rem;
    }

    .custom-modal-box p {
        font-size: 0.95rem;
    }

    .modal-actions button {
        padding: 16px 18px;
        min-height: 50px;
    }

    /* Admin ajustado */
    .admin-header {
        height: 65px;
        padding: 10px 12px;
    }

    .admin-logo-small {
        height: 36px;
    }

    .admin-title h2 {
        font-size: 0.7rem;
    }

    .admin-title span {
        font-size: 0.6rem;
    }

    .btn-back-minimal {
        min-width: 36px;
        padding: 7px;
    }

    .btn-admin-action {
        padding: 9px 14px;
        font-size: 0.75rem;
    }

    .admin-container {
        padding-top: 80px;
        gap: 20px;
    }

    .admin-form,
    .admin-list-container {
        padding: 18px;
    }

    .admin-form input,
    .admin-form textarea,
    .admin-form select {
        padding: 14px;
        font-size: 0.95rem;
        min-height: 50px;
    }

    .admin-form button {
        padding: 16px;
        min-height: 50px;
    }

    .admin-course-item {
        padding: 15px;
    }

    .btn-editar,
    .btn-eliminar {
        width: 46px;
        height: 46px;
    }

    /* Coming soon ajustado */
    .coming-soon {
        padding: 30px 18px;
    }

    .coming-soon h3 {
        font-size: 1.5rem;
    }

    .coming-soon p {
        font-size: 0.95rem;
    }
}

/* === LOGIN MÓVIL === */
@media (max-width: 768px) {
    body[style*="display: flex"] {
        padding: 20px;
    }

    .login-card { 
        width: 90% !important;
        max-width: 420px !important;
        padding: 35px 25px !important;
    }

    .login-card img {
        max-width: 160px !important; /* Logo más grande */
        margin-bottom: 28px !important;
    }

    .login-card h2 {
        font-size: 1.5rem; /* Más grande */
        margin-bottom: 25px;
    }

    .login-card input {
        font-size: 16px !important; /* Evita zoom en iOS */
        padding: 16px !important; /* Más padding */
        min-height: 52px !important;
    }

    .login-card button {
        padding: 16px !important; /* Más grande */
        font-size: 1rem !important;
        min-height: 52px !important;
    }

    .login-card label {
        font-size: 0.95rem !important;
        margin-bottom: 8px !important;
    }
}

/* === OPTIMIZACIONES TÁCTILES === */
@media (hover: none) and (pointer: coarse) {
    /* Aumentar áreas de toque a mínimo 44px */
    .categories-nav button {
        min-height: 48px; /* Más grande */
        padding: 14px 24px;
        font-size: 0.9rem;
    }

    .icon-action-btn {
        min-width: 48px; /* Más grande */
        min-height: 48px;
    }

    .course-header {
        min-height: 70px; /* Más grande */
    }

    .btn-editar,
    .btn-eliminar {
        min-width: 50px; /* Más grande */
        min-height: 50px;
    }

    /* Eliminar efectos hover en touch */
    .course-header:hover {
        transform: none;
    }

    .categories-nav button:hover {
        background: transparent;
    }

    /* Mejor feedback táctil */
    .course-header:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }

    .categories-nav button:active {
        transform: scale(0.95);
        transition: transform 0.1s ease;
    }

    .icon-action-btn:active {
        transform: scale(0.92);
        transition: transform 0.1s ease;
    }
}

/* === LANDSCAPE MÓVIL === */
@media (max-width: 900px) and (orientation: landscape) {
    .main-header {
        padding: 10px 18px;
    }

    main {
        padding-top: 150px !important;
    }

    .course-header {
        padding: 18px;
    }

    .admin-container {
        padding-top: 120px;
    }

    /* Ajustar tamaños para landscape */
    .logo-header {
        height: 45px;
    }

    .title-group h1 {
        font-size: 0.85rem;
    }

    .title-group span {
        font-size: 1.05rem;
    }
}

/* --- LOGIN REFINADO --- */

.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    min-height: 100dvh;
    width: 100%;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
    /* Neutralizar el padding-bottom del body móvil general */
    padding-bottom: 20px !important;
    overflow-x: hidden;
}

.login-wrapper {
    width: 100%;
    max-width: 450px;
    margin: 0 auto;
    animation: fadeInSlide 1s cubic-bezier(0.165, 0.84, 0.44, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

@keyframes fadeInSlide {
    0% { opacity: 0; transform: translateY(30px); }
    100% { opacity: 1; transform: translateY(0); }
}

.login-card {
    background: var(--color-tarjeta);
    backdrop-filter: blur(20px);
    padding: 50px 40px;
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 20px 60px var(--sombra);
    text-align: center;
}

.login-header {
    margin-bottom: 30px;
}

.login-logo {
    width: 100px;
    margin-bottom: 15px;
}

.login-brand h1 {
    font-size: 0.9rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    font-weight: 300;
    margin: 0;
    color: var(--color-texto);
}

.login-brand span {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    color: var(--color-oscuro);
    font-weight: 600;
}

.login-intro {
    font-size: 0.85rem;
    color: var(--color-texto);
    opacity: 0.7;
    margin-bottom: 40px;
    line-height: 1.6;
}

/* Inputs de Diseño Premium */
.input-container {
    position: relative;
    margin-bottom: 25px;
}

.input-container input {
    width: 100%;
    padding: 16px 20px;
    background: var(--color-fondo-base); /* Fondo más visible */
    border: 1px solid var(--color-borde);
    border-radius: 20px; /* Bordes bien redondeados */
    font-family: 'Montserrat', sans-serif;
    color: var(--color-texto);
    font-size: 1rem;
    outline: none;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.02);
    transition: all 0.3s ease;
}

.input-container input:focus {
    border-color: var(--color-principal);
    background: var(--blanco);
    box-shadow: 0 0 15px var(--sombra);
    transform: translateY(-2px);
}

/* Ocultamos la linea porque ahora el input es redondeado */
.input-line {
    display: none;
}

/* Botón de Entrada Premium */
.btn-login-premium {
    width: 100%;
    margin-top: 20px;
    background: linear-gradient(135deg, var(--color-principal), var(--color-oscuro));
    color: white;
    border: none;
    padding: 16px;
    border-radius: 12px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: all 0.3s;
    box-shadow: 0 10px 20px rgba(165, 120, 103, 0.2);
}

.btn-login-premium:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(165, 120, 103, 0.3);
}

.btn-login-premium svg {
    transition: transform 0.3s;
}

.btn-login-premium:hover svg {
    transform: translateX(5px);
}

.login-footer {
    margin-top: 40px;
    font-size: 0.7rem;
    color: var(--color-texto);
    opacity: 0.5;
    letter-spacing: 1px;
}

/* Ajuste para móviles */
@media (max-width: 480px) {
    .login-card {
        padding: 40px 25px;
    }
}

/* Lista de usuarias estilo Grid */
.users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.user-card-item {
    background: var(--color-fondo-base);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: 0.3s;
}

.user-card-item:hover {
    border-color: var(--color-principal);
    box-shadow: 0 10px 20px var(--sombra);
}

.user-info {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.user-role-badge {
    font-size: 0.65rem;
    text-transform: uppercase;
    font-weight: 800;
    padding: 3px 8px;
    border-radius: 4px;
    width: fit-content;
}

/* Colores de roles según la paleta */
.user-role-badge.admin { background: #1A1A1A; color: white; }
.user-role-badge.presencial { background: var(--color-principal); color: white; }
.user-role-badge.semi { background: #FFD2C2; color: var(--color-oscuro); }

.badge-count {
    background: var(--color-crema);
    color: var(--color-principal);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

.btn-icon-edit { color: #555; background: none; border: none; cursor: pointer; margin-right: 10px; }
.btn-icon-edit:hover { color: var(--color-principal); }

.btn-icon-delete { color: #555; background: none; border: none; cursor: pointer; }
.btn-icon-delete:hover { color: #e74c3c; }

/* =========================================
   ESTILOS PARA PORTFOLIO HÍBRIDO (IMAGEN + TEXTO)
   ========================================= */

.about-hybrid-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    animation: fadeIn 0.8s ease;
}

.editorial-title-main {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    color: var(--color-principal);
    margin-bottom: 1rem;
}

.hybrid-timeline {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.hybrid-card {
    display: flex;
    align-items: center;
    background: var(--color-fondo-tarjeta, #ffffff);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
    gap: 0;
}

body.dark-mode .hybrid-card {
    background: #1e1e1e;
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.hybrid-card:hover {
    transform: translateY(-5px);
}

/* El contenedor de la imagen ocupa el 60% del ancho */
.hybrid-img-wrapper {
    flex: 0 0 60%;
    background: #111;
}

.hybrid-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* El contenedor del texto ocupa el 40% del ancho */
.hybrid-content {
    flex: 0 0 40%;
    padding: 3rem;
    position: relative;
}

/* Invertir el orden (Texto izquierda, Imagen derecha) */
.hybrid-card.reverse {
    flex-direction: row-reverse;
}

.hybrid-year {
    display: inline-block;
    background: #b06d48;
    color: white;
    padding: 6px 16px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.hybrid-content h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.6rem;
    color: var(--color-principal);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.hybrid-content p {
    font-family: 'Playfair Display', serif;
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-texto);
    opacity: 0.9;
}

/* === RESPONSIVE (Móviles y Tablets) === */
@media (max-width: 992px) {
    .hybrid-card, .hybrid-card.reverse {
        flex-direction: column;
    }
    
    .hybrid-img-wrapper, .hybrid-content {
        flex: 1 1 100%;
        width: 100%;
    }

    .hybrid-content {
        padding: 2rem;
    }

    .editorial-title-main {
        font-size: 2.5rem;
    }
}

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