/* Variables globales */
:root {
    --primary-color: #1DB954;
    --secondary-color: #535353;
    --dark-color: #121212;
    --light-color: #ffffff;
    --gray-color: #282828;
    --transition: all 0.3s ease;
}

/* Reset y estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    background-color: var(--dark-color);
    color: var(--light-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* Header */
.header {
    background-color: rgba(18, 18, 18, 0.98);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

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

.logo {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: -0.5px;
}

/* Navegación */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-menu a {
    color: var(--light-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.nav-menu a:hover {
    color: var(--primary-color);
    background-color: rgba(29, 185, 84, 0.1);
}

/* Main Content */
main {
    margin-top: 80px;
    min-height: calc(100vh - 80px - 100px); /* Resta header y footer */
}

.section {
    padding: 4rem 0;
}

.section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--light-color);
}

.section p {
    color: var(--secondary-color);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.bg-light {
    background-color: rgba(255, 255, 255, 0.03);
}

/* Video Grid */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.video-card {
    background-color: var(--gray-color);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.video-card h3 {
    padding: 1rem;
    font-size: 1.1rem;
    color: var(--light-color);
    background-color: var(--gray-color);
    margin: 0;
}

/* Footer */
.footer {
    background-color: var(--gray-color);
    padding: 2rem 0;
    text-align: center;
    margin-top: 4rem;
}

.footer p {
    color: var(--secondary-color);
    margin: 0.5rem 0;
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    margin: 0 0.5rem;
}

.footer a:hover {
    color: var(--light-color);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        padding: 0.8rem 0;
    }

    .logo {
        font-size: 1.5rem;
    }

    .nav-menu {
        gap: 1rem;
    }

    .nav-menu a {
        font-size: 1rem;
        padding: 0.3rem 0.8rem;
    }

    .section h2 {
        font-size: 2rem;
    }

    .video-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }

    .video-card h3 {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .nav-menu {
        gap: 0.5rem;
    }

    .section {
        padding: 3rem 0;
    }

    .video-grid {
        grid-template-columns: 1fr;
    }

    .footer {
        padding: 1.5rem 0;
    }
}

/* Utilidades */
.text-primary {
    color: var(--primary-color);
}

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

.hidden {
    display: none;
}

/* Efectos de hover mejorados */
.video-card .video-info {
    padding: 1rem;
    background: linear-gradient(to top, var(--gray-color) 0%, transparent 100%);
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    transform: translateY(100%);
    transition: var(--transition);
}

.video-card:hover .video-info {
    transform: translateY(0);
}

/* Estilos para los videos */
.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* Aspect ratio 16:9 */
    height: 0;
    overflow: hidden;
}

.video-wrapper video,
.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px 8px 0 0;
    object-fit: cover;
}

.video-card {
    background-color: var(--gray-color);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.video-card h3 {
    padding: 1rem;
    font-size: 1.1rem;
    color: var(--light-color);
    background-color: var(--gray-color);
    margin: 0;
}

/* Ajustes responsive para videos */
@media (max-width: 768px) {
    .video-grid {
        gap: 1.5rem;
    }
    
    .video-card h3 {
        font-size: 1rem;
        padding: 0.8rem;
    }
}

@media (max-width: 480px) {
    .video-wrapper {
        margin-bottom: 0;
    }
}

/* Estilos para las descripciones de video */
.video-description {
    padding: 0 1rem 1rem;
    color: var(--secondary-color);
    font-size: 0.9rem;
    line-height: 1.5;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-in-out;
}

.video-card:hover .video-description {
    max-height: 200px; /* Ajusta según necesites */
}

.video-description p {
    margin: 0;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Ajuste para móviles */
@media (max-width: 768px) {
    .video-description {
        font-size: 0.8rem;
    }
    
    .video-card:hover .video-description {
        max-height: 250px;
    }
}

/* Botón de subir */
.btn-subir {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, #00ff00, #ffff00, #ffa500, #ff00ff);
    color: var(--dark-color);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
}

.btn-subir:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
}

.btn-subir.visible {
    display: flex;
    animation: fadeIn 0.3s ease-in-out;
}

@media (max-width: 768px) {
    .btn-subir {
        width: 40px;
        height: 40px;
        font-size: 16px;
        bottom: 15px;
        right: 15px;
    }
}