/* --- Variables de Color (Paleta extraída del logo) --- */
:root {
    --brand-dark-blue: #004e92;  /* Azul profundo de la ola */
    --brand-blue: #29abe2;       /* Azul claro de la ola */
    --brand-teal: #00a99d;       /* Piezas turquesas */
    --brand-yellow: #fcee21;     /* Piezas amarillas/cinta */
    --brand-orange: #f7931e;     /* Acento naranja */
    --text-dark: #333333;
    --text-light: #ffffff;
    --bg-light: #f4f7f6;
    --sidebar-width: 320px;
}

/* --- Estilos Globales --- */
body, html {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* --- Navegación Superior (Menu Horizontal) --- */
.main-header {
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-container {
    display: flex;
    align-items: center;
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--brand-dark-blue);
}

.logo-img {
    height: 50px;
    margin-right: 15px;
}

.top-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.top-nav li {
    margin-left: 20px;
}

.top-nav a {
    text-decoration: none;
    color: var(--brand-dark-blue);
    font-weight: 600;
    padding: 10px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.top-nav a:hover, .top-nav a.active {
    background-color: var(--brand-blue);
    color: var(--text-light);
}

/* --- Estilos Específicos de la Portada (index.html) --- */
.hero-banner {
    /* Gradiente usando la paleta del logo */
    background: linear-gradient(135deg, var(--brand-dark-blue) 0%, var(--brand-blue) 50%, var(--brand-teal) 100%);
    color: var(--text-light);
    padding: 80px 20px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 20px;
}

.disclaimer-box {
    background-color: rgba(255, 255, 255, 0.15);
    padding: 30px;
    border-radius: 15px;
    backdrop-filter: blur(5px);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.disclaimer-box p {
    margin: 15px 0;
    font-size: 1.1rem;
}

.cta-button {
    display: inline-block;
    margin-top: 30px;
    padding: 15px 40px;
    background-color: var(--brand-yellow);
    color: var(--brand-dark-blue);
    font-size: 1.2rem;
    font-weight: bold;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
    background-color: var(--brand-orange);
}

/* --- Estilos Específicos del Reproductor (player.html) --- */
.player-layout {
    display: flex;
    height: calc(100vh - 70px); /* Resta la altura del header */
    overflow: hidden;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: #2c3e50; /* Un tono más oscuro para contraste en el reproductor */
    color: #ecf0f1;
    overflow-y: auto;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 20px;
    background-color: #1a252f;
    text-align: center;
}

.category-group h3 {
    background-color: #34495e;
    padding: 15px 20px;
    margin: 0;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid #2c3e50;
    color: var(--brand-teal); /* Acento del logo */
}

.video-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.video-list li {
    padding: 12px 20px;
    cursor: pointer;
    border-bottom: 1px solid #3d566e;
    transition: background-color 0.3s;
    font-size: 0.95rem;
}

.video-list li:hover {
    background-color: var(--brand-blue);
    color: white;
}

.video-stage {
    flex-grow: 1;
    background-color: #000;
    display: flex;
    justify-content: center;
    align-items: center;
}

iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* --- Responsive Design (Media Queries) --- */
@media (max-width: 768px) {
    /* Portada Móvil */
    .main-header {
        flex-direction: column;
        padding: 10px;
    }
    .top-nav ul {
        margin-top: 15px;
    }
    .top-nav li {
        margin-left: 10px;
        margin-right: 10px;
    }
    .hero-title {
        font-size: 2rem;
    }
    
    /* Reproductor Móvil */
    .player-layout {
        flex-direction: column;
        height: auto;
    }
    .sidebar {
        width: 100%;
        height: 300px; /* Altura fija para la lista en móvil */
        order: 2; /* Pone la lista debajo del video en celulares */
    }
    .video-stage {
        height: 50vh; /* Altura del video en móvil */
        order: 1;
    }
}