:root {
    /* Colores principales - Negro azulado */
    --color-bg-primary: #0a0e27;
    --color-bg-secondary: #1a1f3a;
    --color-bg-tertiary: #252b4a;
    --color-accent-blue: #2563eb;
    --color-accent-blue-light: #3b82f6;
    --color-accent-blue-dark: #1e40af;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #1e3a8a 100%);
    --gradient-card: linear-gradient(135deg, rgba(26, 31, 58, 0.8) 0%, rgba(37, 43, 74, 0.6) 100%);
    --gradient-overlay: linear-gradient(to top, rgba(10, 14, 39, 0.95) 0%, transparent 100%);
    
    /* Colores de texto */
    --color-text-primary: #ffffff;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    
    /* Glassmorphism */
    --glass-bg: rgba(26, 31, 58, 0.4);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.4);
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Bordes */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Tipografía */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--gradient-primary);
    background-attachment: fixed;
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-accent-blue);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-blue-light);
}

/* Header y Navegación */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.header.scrolled {
    background: rgba(10, 14, 39, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-accent-blue-light), var(--color-accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition-fast);
}

.logo:hover {
    filter: brightness(1.2);
    transform: scale(1.05);
}

.logo-icon {
    font-size: var(--font-size-3xl);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-accent-blue);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-link:hover::after {
    width: 80%;
}

.nav-link.active {
    color: var(--color-accent-blue-light);
}

/* Dropdown de géneros */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: var(--spacing-xs);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-sm);
    min-width: 200px;
    max-height: 400px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-normal);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xs);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    color: var(--color-text-secondary);
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

.dropdown-item:hover {
    background: rgba(37, 99, 235, 0.2);
    color: var(--color-text-primary);
}

/* Búsqueda */
.search-container {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-input {
    width: 100%;
    padding: var(--spacing-xs) var(--spacing-sm);
    padding-left: 2.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-accent-blue);
    box-shadow: var(--shadow-glow);
}

.search-icon {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
}

/* Menú hamburguesa móvil */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    position: relative;
    height: 80vh;
    min-height: 600px;
    margin-top: 70px;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.3);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    width: 100%;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
}

.hero-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

.hero-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    color: #fbbf24;
}

.hero-year,
.hero-duration {
    color: var(--color-text-secondary);
}

.hero-genres {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.genre-badge {
    padding: 0.25rem var(--spacing-sm);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.hero-synopsis {
    max-width: 700px;
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Botones */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    border: none;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-blue-light));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--color-text-primary);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(37, 43, 74, 0.8);
    border-color: var(--color-accent-blue);
}

/* Secciones de contenido */
.section {
    padding: var(--spacing-2xl) var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

.section-link {
    color: var(--color-accent-blue-light);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition-fast);
}

.section-link:hover {
    gap: var(--spacing-sm);
}

/* Grid de películas */
.movies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

/* Tarjeta de película */
.movie-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-normal);
    background: var(--color-bg-secondary);
    box-shadow: var(--shadow-md);
}

.movie-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.movie-poster {
    width: 100%;
    aspect-ratio: 2/3;
    object-fit: cover;
    display: block;
}

.movie-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--gradient-overlay);
    padding: var(--spacing-md);
    transform: translateY(100%);
    transition: var(--transition-normal);
}

.movie-card:hover .movie-overlay {
    transform: translateY(0);
}

.movie-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.movie-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.movie-rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: #fbbf24;
    font-weight: 600;
}

/* Rating badge en la esquina */
.rating-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    padding: 0.25rem var(--spacing-xs);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: #fbbf24;
}

/* Footer */
.footer {
    background: var(--color-bg-primary);
    border-top: 1px solid var(--glass-border);
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.footer-section h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-accent-blue-light);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

.footer-link:hover {
    color: var(--color-accent-blue-light);
    padding-left: var(--spacing-xs);
}

.footer-bottom {
    max-width: 1400px;
    margin: var(--spacing-xl) auto 0;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--spacing-lg);
        transform: translateX(-100%);
        transition: var(--transition-normal);
        border-bottom: 1px solid var(--glass-border);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .search-container {
        max-width: 100%;
        order: -1;
    }
    
    .hero {
        height: 60vh;
        min-height: 500px;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .movies-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-md);
    }
    
    .dropdown-menu {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-xl);
    }
    
    .movies-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(37, 99, 235, 0.4);
    }
    50% {
        box-shadow: 0 0 40px rgba(37, 99, 235, 0.6);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Loading skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--color-bg-secondary) 25%, var(--color-bg-tertiary) 50%, var(--color-bg-secondary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}