:root {
    --rosa-mexicano: #E4007C;
    --rosa-mexicano-hover: #C20069;
    --bg-negro: #000000;
    --bg-elevado: #121212;
    --bg-tarjeta: #181818;
    --bg-tarjeta-hover: #282828;
    --texto-principal: #FFFFFF;
    --texto-secundario: #B3B3B3;
    --radio-redondo: 50%;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-negro);
    color: var(--texto-principal);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    padding-bottom: 150px;
    overflow-x: hidden;
}

.oculto { display: none !important; }
.text-rosa { color: var(--rosa-mexicano) !important; }
.text-center { text-align: center; }

/* Identidad circular de carátulas (Estilo Vinilo) */
.caratula-vinilo {
    border-radius: var(--radio-redondo);
    aspect-ratio: 1 / 1;
    object-fit: cover;
    display: block;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Tamaños dinámicos de portadas */
.cover-slide-visitante { width: 190px; height: 190px; margin: 0 auto; }
.cover-album-logueado { width: 135px; height: 135px; margin: 0 auto; }
.cover-miniatura-lista { width: 48px; height: 48px; min-width: 48px; }

/* Cabecera superior */
#top-bar {
    position: sticky;
    top: 0;
    height: 56px;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 90;
}

#header-logo { width: 36px; height: 36px; }

/* Botones de acción e íconos */
.btn-icon {
    background: none;
    border: none;
    color: var(--texto-principal);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
}

.btn-rosa-sm {
    background-color: var(--rosa-mexicano);
    color: var(--texto-principal);
    border: none;
    border-radius: 500px;
    padding: 8px 16px;
    font-weight: 700;
    font-size: 13px;
    cursor: pointer;
}

.btn-rosa-lg {
    background-color: var(--rosa-mexicano);
    color: var(--texto-principal);
    border: none;
    border-radius: 500px;
    padding: 14px 32px;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    width: 100%;
    margin-top: 16px;
}

/* Banner promocional */
#promo-banner {
    background: linear-gradient(90deg, #240b1a 0%, var(--bg-elevado) 100%);
    border-left: 4px solid var(--rosa-mexicano);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 8px 16px;
    border-radius: 8px;
}

.banner-content p { font-size: 13px; margin-bottom: 8px; }
.btn-close-banner { background: none; border: none; color: var(--texto-secundario); font-size: 16px; cursor: pointer; }

/* Contenedor principal de vistas */
#app-view {
    padding: 16px;
    max-width: 1400px;
    margin: 0 auto;
}

/* Carruseles y cuadrículas */
.grid-caratulas {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
    margin: 16px 0 32px 0;
}

.tarjeta-item {
    background-color: var(--bg-tarjeta);
    border-radius: 8px;
    padding: 14px;
    cursor: pointer;
    transition: background-color 0.2s;
    text-align: center;
}

.tarjeta-item:hover { background-color: var(--bg-tarjeta-hover); }
.tarjeta-item h4 { font-size: 14px; margin: 10px 0 4px 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tarjeta-item p { font-size: 12px; color: var(--texto-secundario); }

/* Listas detalladas de canciones */
.cancion-fila {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    gap: 12px;
}

.cancion-fila:hover { background-color: rgba(255, 255, 255, 0.08); }
.cancion-fila .meta { flex-grow: 1; overflow: hidden; }
.cancion-fila .meta .title { font-size: 14px; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cancion-fila .meta .artist { font-size: 12px; color: var(--texto-secundario); }

/* Mini-Reproductor persistente */
#mini-player {
    position: fixed;
    bottom: 60px;
    left: 8px;
    right: 8px;
    height: 56px;
    background-color: var(--bg-elevado);
    border-radius: 8px;
    display: flex;
    align-items: center;
    padding: 0 12px;
    z-index: 95;
    box-shadow: 0 4px 16px rgba(0,0,0,0.8);
    border: 1px solid rgba(255,255,255,0.06);
}

#player-track-cover { width: 40px; height: 40px; margin-right: 12px; cursor: pointer; }
.track-meta { flex-grow: 1; overflow: hidden; cursor: pointer; }
#player-track-title { display: block; font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#player-track-artist { display: block; font-size: 11px; color: var(--texto-secundario); white-space: nowrap; }

.player-controls { display: flex; align-items: center; gap: 4px; }
.btn-play { font-size: 22px; }

#playback-bar {
    position: absolute;
    bottom: 0;
    left: 8px;
    right: 8px;
    height: 2px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
}

#playback-fill { width: 0%; height: 100%; background-color: var(--rosa-mexicano); }

/* Barra de navegación inferior */
#footer-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 56px;
    background-color: rgba(0, 0, 0, 0.98);
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 90;
}

.nav-tab {
    background: none;
    border: none;
    color: var(--texto-secundario);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    font-size: 10px;
    cursor: pointer;
    flex: 1;
}

.nav-tab.active, .nav-tab:hover { color: var(--texto-principal); }

/* Modales y Drawer lateral */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0,0,0,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 20px;
}

.modal-box {
    background-color: var(--bg-elevado);
    border-radius: 12px;
    padding: 24px;
    width: 100%;
    max-width: 420px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.planes-grid { display: flex; flex-direction: column; gap: 10px; margin: 20px 0; }
.btn-plan {
    background-color: var(--bg-tarjeta);
    border: 1px solid var(--rosa-mexicano);
    color: var(--texto-principal);
    padding: 12px;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
}

.btn-plan:hover { background-color: var(--rosa-mexicano); }
.btn-link { background: none; border: none; color: var(--texto-secundario); margin-top: 14px; cursor: pointer; text-decoration: underline; font-size: 13px; }

.tarjetas-iconos { display: flex; justify-content: center; gap: 10px; margin: 18px 0; }
.badge-card { background-color: var(--bg-tarjeta-hover); padding: 4px 10px; border-radius: 4px; font-size: 12px; font-weight: bold; }

/* Menú lateral (Engrane) */
.menu-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100%;
    background-color: var(--bg-elevado);
    z-index: 300;
    padding: 20px;
    box-shadow: -4px 0 20px rgba(0,0,0,0.8);
}

.drawer-links { list-style: none; margin-top: 24px; }
.drawer-links li { margin: 18px 0; }
.drawer-links a { color: var(--texto-principal); text-decoration: none; font-size: 16px; font-weight: 600; display: block; }
.drawer-divider { border: none; height: 1px; background: rgba(255,255,255,0.1); margin: 20px 0; }

/* Barra roja modo offline */
#offline-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: #B00020;
    color: white;
    text-align: center;
    font-size: 12px;
    padding: 6px;
    z-index: 500;
}

/* Optimización para Smart TVs (10-foot UI) */
@media (min-width: 1600px) {
    body { font-size: 18px; padding-bottom: 180px; }
    #mini-player { height: 75px; bottom: 80px; }
    #player-track-cover { width: 55px; height: 55px; }
    #footer-nav { height: 75px; }
    .grid-caratulas { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 24px; }
}