/* ==================== VARIABLES CSS ==================== */
/* CAMBIA LOS COLORES AQUÍ SEGÚN TU IDENTIDAD VISUAL */
:root {
    /* Colores principales - Modo claro */
    --color-primary: #f5740b;        /* Color principal (morado vibrante) */
    --color-primary-dark: #7C3AED;   /* Color principal oscuro para hover */
    --color-secondary: #F59E0B;      /* Color secundario (ámbar/dorado) */
    --color-accent: #EF4444;         /* Color de acento (rojo suave) */
    
    /* Colores de fondo */
    --color-bg: #FFFFFF;             /* Fondo principal */
    --color-bg-alt: #F3F4F6;         /* Fondo alternativo */
    --color-bg-card: #FFFFFF;        /* Fondo de cards */
    
    /* Colores de texto */
    --color-text: #1F2937;           /* Texto principal */
    --color-text-light: #6B7280;     /* Texto secundario */
    --color-text-heading: #111827;   /* Títulos */
    
    /* Colores del footer */
    --footer-bg: #1F2937;            /* Fondo del footer */
    --footer-text: #FFFFFF;          /* Texto del footer */
    --footer-text-secondary: rgba(255, 255, 255, 0.8);
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15);
    
    /* Bordes redondeados */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==================== MODO OSCURO ==================== */
/* Variables para modo oscuro - CAMBIA LOS COLORES AQUÍ */
[data-theme="dark"] {
    --color-bg: #111827;
    --color-bg-alt: #1F2937;
    --color-bg-card: #374151;
    
    --color-text: #F3F4F6;
    --color-text-light: #9CA3AF;
    --color-text-heading: #FFFFFF;
    
    /* Colores del footer en modo oscuro */
    --footer-bg: #0F172A;
    --footer-text: #F3F4F6;
    --footer-text-secondary: rgba(243, 244, 246, 0.7);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.4);
}

/* ==================== TIPOGRAFÍA ==================== */
/* CAMBIA LAS FUENTES AQUÍ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ==================== CONTAINER ==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==================== NAVBAR ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.navbar-logo a {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.navbar-logo a:hover {
    color: var(--color-primary-dark);
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.navbar-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.navbar-menu a:hover {
    color: var(--color-primary);
}

.dark-mode-toggle {
    background: none;
    border: 2px solid var(--color-text-light);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-xs);
    cursor: pointer;
    font-size: 1.2rem;
    transition: all var(--transition-fast);
}

.dark-mode-toggle:hover {
    border-color: var(--color-primary);
    background-color: var(--color-bg-alt);
}

.dark-icon {
    display: block;
}

[data-theme="dark"] .dark-icon {
    display: none;
}

.light-icon {
    display: none;
}

[data-theme="dark"] .light-icon {
    display: block;
}

/* Responsive navbar */
@media (max-width: 768px) {
    .navbar-container {
        flex-wrap: wrap;
    }
    
    .navbar-menu {
        order: 3;
        width: 100%;
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
        padding-top: var(--spacing-sm);
        display: none;
    }
    
    .navbar-menu.active {
        display: flex;
    }
    
    .dark-mode-toggle {
        order: 2;
    }
}

/* ==================== HERO SECTION ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 80px;
    overflow: visible;
}

.hero-background {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('./img/fondo.jpg') center/cover no-repeat;
    background-color: #333;
    z-index: -2;
}

.hero-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: -1;
}

.hero-content {
    text-align: center;
    color: #FFFFFF;
    max-width: 1400px;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-xl) var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 0.5fr 1fr 1fr;
    grid-template-rows: auto auto auto;
    gap: var(--spacing-sm);
    align-items: start;
}

.hero-title {
    grid-column: 1 / -1;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-sm);
    line-height: 1.2;
    animation: fadeInUp 0.8s ease;
}

.hero-info {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-date,
.hero-location {
    font-size: 1.1rem;
    font-weight: 500;
}

.hero-poster {
    grid-column: 1 / 2;
    grid-row: 3 / 4;
    display: flex;
    justify-content: center;
    align-items: center;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease 0.3s backwards;
}

.hero-poster .poster-image {
    max-width: 100%;
    height: auto;
    max-height: 50vh;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
    object-position: top;
    margin-top: 30px;
}

.hero-description {
    display: none;
}

.hero-salas-left {
    grid-column: 3 / 4;
    grid-row: 3 / 4;
    margin-top: 0;
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    gap: var(--spacing-xs);
    animation: fadeInUp 0.8s ease 0.5s backwards;
    width: 100%;
}

.hero-salas-right {
    grid-column: 4 / 5;
    grid-row: 3 / 4;
    margin-top: 0;
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    gap: var(--spacing-xs);
    animation: fadeInUp 0.8s ease 0.6s backwards;
    width: 100%;
}

/* ==================== BOTONES ==================== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

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

.btn-primary:hover {
    background-color: var(--color-bg-alt);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: var(--color-primary);
    color: #FFFFFF;
}

.btn-secondary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ==================== SECCIONES ==================== */
section {
    padding: var(--spacing-xxl) 0;
}

.poster {
    background-color: var(--color-bg);
    padding: var(--spacing-xl) 0;
}

.poster-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
}

.poster-image {
    max-width: 100%;
    height: auto;
    max-height: 600px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    object-fit: contain;
}

.salas {
    background-color: var(--color-bg-alt);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-text-heading);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ==================== SALAS GRID ==================== */
.salas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    align-items: start;
}

/* ==================== SALA CARD ==================== */
.sala-card {
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
}

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

.sala-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm);
    gap: var(--spacing-xs);
    background-color: var(--color-bg-card);
    transition: background-color var(--transition-normal);
}

.sala-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.sala-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-heading);
    flex-grow: 1;
}

.expand-icon {
    font-size: 0.7rem;
    color: var(--color-text-light);
    transition: transform var(--transition-normal);
}

.sala-card.active .expand-icon {
    transform: rotate(180deg);
}

/* ==================== SALA CONTENT (ACCORDION) ==================== */
.sala-content {
    display: none;
    padding: 0;
    background-color: transparent;
}

.sala-card.active .sala-content {
    display: block;
    padding: 0;
    background-color: var(--color-bg-alt);
    animation: fadeIn 0.3s ease;
}

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

.sala-description {
    display: none;
    padding: 0;
    color: var(--color-text);
    line-height: 1.5;
    border-bottom: none;
    font-size: 0.85rem;
}

.sala-card.active .sala-description {
    display: block;
    padding: var(--spacing-sm);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .sala-card.active .sala-description {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.actividades-list {
    display: none;
    padding: 0;
}

.sala-card.active .actividades-list {
    display: block;
    padding: var(--spacing-sm);
}

.actividad-item {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .actividad-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.actividad-item:last-child {
    border-bottom: none;
}

.actividad-hora {
    font-weight: 600;
    color: var(--color-primary);
    min-width: 50px;
    font-size: 0.8rem;
}

.actividad-nombre {
    color: var(--color-text);
    font-size: 0.8rem;
}

/* ==================== PATROCINADORES ==================== */
.patrocinadores {
    background-color: var(--color-bg);
}

.patrocinadores-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.patrocinador-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    text-decoration: none;
}

.patrocinador-logo:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.patrocinador-logo img {
    max-width: 100%;
    height: auto;
    max-height: 80px;
    object-fit: contain;
}

/* ==================== FOOTER ==================== */
.footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.footer-section p {
    color: var(--footer-text-secondary);
    line-height: 1.8;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.social-links a {
    color: var(--footer-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.social-links a:hover {
    color: var(--footer-text);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    color: var(--footer-text-secondary);
    font-size: 0.9rem;
}

/* ==================== ANIMACIONES ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .hero-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .hero-info {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .salas-grid {
        grid-template-columns: 1fr;
    }
    
    .patrocinadores-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .patrocinadores-grid {
        grid-template-columns: 1fr;
    }
}

/* ==================== ACCESIBILIDAD ==================== */
/* Focus visible para navegación por teclado */
a:focus-visible,
button:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* Skip link para accesibilidad */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: 8px;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}