/* ================================================
   UVA TV HD - Estilos Principales
   ================================================ */

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

/* Optimización de rendimiento */
*:not(video, iframe, img) {
    will-change: auto;
}

/* GPU acceleration solo donde sea necesario */
.video-wrapper, .live-badge {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

html {
    scroll-behavior: auto;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Modo bajo rendimiento */
body.low-performance-mode .live-badge,
body.low-performance-mode .live-indicator,
body.low-performance-mode .btn {
    animation: none !important;
}

body.low-performance-mode {
    animation: none;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition-base);
}

/* ================================================
   HEADER
   ================================================ */

.header {
    position: sticky;
    top: 0;
    z-index: var(--z-dropdown);
    background: linear-gradient(to right, var(--secondary-color), var(--bg-light));
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow-lg);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    gap: var(--spacing-lg);
    width: 100%;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 200px;
}

.logo {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.channel-name {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    white-space: nowrap;
}

/* Navegación de Escritorio */
.nav-desktop {
    flex-grow: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    list-style: none;
    display: flex;
    gap: var(--spacing-lg);
    margin: 0;
    padding: 0;
}

.nav-link {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-base);
    color: var(--text-secondary);
}

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

/* Controles de Header */
.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.viewers-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(229, 9, 20, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-full);
    color: var(--primary-color);
    font-weight: var(--font-weight-bold);
    transition: all var(--transition-base);
}

.viewers-btn:hover {
    background: var(--primary-color);
    color: white;
}

.menu-toggle {
    display: none;
    font-size: var(--font-size-xl);
    color: var(--text-primary);
}

/* ================================================
   NAVEGACIÓN MÓVIL
   ================================================ */

.nav-mobile {
    display: none;
    background: var(--secondary-color);
    border-bottom: 1px solid var(--border-color);
}

.nav-mobile.active {
    display: block;
}

.nav-mobile .nav-list {
    flex-direction: column;
    gap: 0;
}

.nav-mobile .nav-link {
    padding: var(--spacing-md);
    display: block;
    border: none;
    border-bottom: 1px solid var(--border-color);
}

/* ================================================
   MAIN CONTENT
   ================================================ */

.main-content {
    min-height: 100vh;
    background: var(--gradient-dark);
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    width: 100%;
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ================================================
   LIVE SECTION
   ================================================ */

.live-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, transparent, rgba(229, 9, 20, 0.05));
    will-change: auto;
}

.live-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-xl);
    align-items: start;
    width: 100%;
}

.video-wrapper {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    min-height: 300px;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
    transform: translateZ(0);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.video-wrapper iframe,
.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    display: block;
    background: #000;
}

.live-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-sm);
    z-index: 10;
    animation: pulse 3s infinite;
    will-change: opacity;
    backface-visibility: hidden;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Info Stream */
.stream-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-header {
    background: linear-gradient(135deg, rgba(229, 9, 20, 0.15), rgba(245, 176, 65, 0.05));
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 20px rgba(229, 9, 20, 0.2);
}

.info-header h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary-color);
}

.live-indicator {
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    animation: pulse 3s infinite;
    will-change: opacity;
    backface-visibility: hidden;
}
}

.stream-description {
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.9), rgba(15, 15, 15, 0.95));
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--text-secondary);
}

.stream-description p {
    margin: 0;
}

/* Botones de Acción */
.quick-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(229, 9, 20, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(229, 9, 20, 0.5);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(229, 9, 20, 0.1);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 2px 10px rgba(229, 9, 20, 0.2);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(229, 9, 20, 0.5);
}

.btn-secondary:active {
    transform: translateY(-1px);
}

/* ================================================
   SCHEDULE SECTION
   ================================================ */

.schedule-section {
    padding: var(--spacing-2xl) 0;
    background: var(--secondary-color);
}

.schedule-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.schedule-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(229, 9, 20, 0.1), rgba(245, 176, 65, 0.05));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.schedule-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(229, 9, 20, 0.2);
}

.time {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    min-width: 70px;
}

.program-info h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.program-type {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ================================================
   FEATURED SECTION
   ================================================ */

.featured-section {
    padding: var(--spacing-2xl) 0;
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.featured-card {
    background: var(--secondary-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.featured-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
}

.featured-image {
    position: relative;
    width: 100%;
    padding-bottom: 150%;
    overflow: hidden;
    background: #000;
}

.featured-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.featured-card:hover .featured-image img {
    transform: scale(1.05);
}

.badge-new {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    z-index: 10;
}

.featured-card h3 {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-xs);
    font-size: var(--font-size-lg);
}

.featured-type {
    padding: 0 var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--primary-color);
}

.featured-desc {
    padding: var(--spacing-md);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    flex-grow: 1;
}

/* ================================================
   ABOUT SECTION
   ================================================ */

.about-section {
    padding: var(--spacing-2xl) 0;
    background: var(--secondary-color);
}

.about-content {
    max-width: 800px;
}

.about-content p {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(229, 9, 20, 0.1), rgba(245, 176, 65, 0.05));
    border-radius: var(--radius-lg);
}

.feature {
    text-align: center;
}

.feature i {
    font-size: var(--font-size-3xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.feature h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

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

/* ================================================
   FOOTER
   ================================================ */

.footer {
    background: var(--secondary-color);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    width: 100%;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

.footer-section a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(229, 9, 20, 0.1);
    border-radius: 50%;
    color: var(--primary-color);
    transition: all var(--transition-base);
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ================================================
   SCROLLBAR
   ================================================ */

::-webkit-scrollbar {
    width: 10px;
}

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

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

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