* {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

/* Select de género - menú desplegable */
#categorySelect option {
    background: #0f0f17;
    color: #fff;
    padding: 10px;
}

#categorySelect option:hover,
#categorySelect option:checked {
    background: #1c1c28;
    color: #a855f7;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: #0f0f17;
}

::-webkit-scrollbar-thumb {
    background: #252532;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #363645;
}

/* Sidebar móvil */
.sidebar-overlay {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.sidebar-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.sidebar-mobile {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.sidebar-mobile.active {
    transform: translateX(0);
}

/* Categoría activa */
.category-item.active {
    background: rgba(99, 102, 241, 0.15);
    border-left: 3px solid #6366f1;
}

/* Lista de canciones - scroll táctil */
#songsList,
#playlistSongs {
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
    overscroll-behavior: contain;
    min-height: 0;
}

/* Fix para scroll en móvil */
@media (max-width: 1023px) {
    #mainColumns {
        overflow-y: auto;
        overflow-x: hidden;
    }

    #colBiblioteca,
    #colPlaylist {
        flex: none;
        min-height: auto;
    }

    #songsList {
        max-height: 50vh;
        overflow-y: auto;
    }

    #playlistSongs {
        max-height: 40vh;
        overflow-y: auto;
    }
}

/* Fila de canción */
.song-row {
    transition: background 0.15s ease;
    touch-action: pan-y;
}

.song-row:hover {
    background: rgba(255, 255, 255, 0.05);
}

.song-row.playing {
    background: rgba(99, 102, 241, 0.1);
}

.song-row.in-playlist {
    background: rgba(34, 197, 94, 0.1);
}

/* Botón agregar */
.btn-add {
    opacity: 0.5;
    transition: all 0.2s;
}

.song-row:hover .btn-add {
    opacity: 1;
}

.btn-add:hover {
    transform: scale(1.1);
}

.btn-add.added {
    color: #22c55e;
    opacity: 1;
}

/* Fila playlist - compacta pero arrastrable */
.playlist-row {
    transition: background 0.1s ease;
    height: 26px;
    line-height: 26px;
    user-select: none;
}

.playlist-row:hover {
    background: rgba(255, 255, 255, 0.08);
}

.playlist-row.playing {
    background: rgba(34, 197, 94, 0.2);
    border-left: 2px solid #22c55e;
}

/* Botón quitar */
.btn-remove {
    opacity: 0;
    transition: opacity 0.2s;
}

.playlist-row:hover .btn-remove {
    opacity: 1;
}

/* Animación de onda */
.audio-wave {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 16px;
}

.audio-wave span {
    display: inline-block;
    width: 3px;
    background: currentColor;
    border-radius: 2px;
    animation: wave 1s ease-in-out infinite;
}

.audio-wave span:nth-child(1) {
    animation-delay: 0s;
    height: 40%;
}

.audio-wave span:nth-child(2) {
    animation-delay: 0.1s;
    height: 70%;
}

.audio-wave span:nth-child(3) {
    animation-delay: 0.2s;
    height: 50%;
}

.audio-wave span:nth-child(4) {
    animation-delay: 0.3s;
    height: 80%;
}

@keyframes wave {

    0%,
    100% {
        transform: scaleY(0.5);
    }

    50% {
        transform: scaleY(1);
    }
}

/* Touch feedback */
.touch-feedback:active {
    transform: scale(0.96);
    opacity: 0.8;
}

/* Modal */
#modalSave.active {
    display: flex;
}

/* Drag and Drop - Biblioteca a Playlist */
.song-row.dragging {
    opacity: 0.5;
    background: rgba(99, 102, 241, 0.2);
}

#playlistSongs.drag-over {
    background: rgba(34, 197, 94, 0.15);
    border: 2px dashed #22c55e;
    border-radius: 8px;
}

#playlistSongs.drag-over::before {
    content: 'Suelta aquí para agregar';
    display: block;
    text-align: center;
    padding: 10px;
    color: #22c55e;
    font-weight: 500;
    font-size: 14px;
}

/* Botones mover arriba/abajo */
.btn-move-up,
.btn-move-down {
    opacity: 0;
    transition: opacity 0.15s;
}

.playlist-row:hover .btn-move-up,
.playlist-row:hover .btn-move-down {
    opacity: 1;
}

.btn-move-up:hover,
.btn-move-down:hover {
    transform: scale(1.2);
}

/* SortableJS - Drag and Drop */
.playlist-row {
    cursor: grab;
}

.playlist-row:active {
    cursor: grabbing;
}

.sortable-ghost {
    opacity: 0.4;
    background: rgba(99, 102, 241, 0.3) !important;
}

.sortable-chosen {
    background: rgba(34, 197, 94, 0.3) !important;
    box-shadow: 0 2px 8px rgba(34, 197, 94, 0.3);
}

.sortable-drag {
    opacity: 1 !important;
    background: rgba(34, 197, 94, 0.4) !important;
}

.sortable-fallback {
    opacity: 0.9 !important;
    background: #1c1c28 !important;
    border: 1px solid #22c55e !important;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

/* ========================================
   RESPONSIVE MÓVIL - Navegación visible
   ======================================== */
@media (max-width: 768px) {
    /* Body: usar dvh para evitar problemas con barra de direcciones */
    body {
        height: 100dvh;
        min-height: -webkit-fill-available;
    }

    /* Navegación inferior fija y visible en móvil */
    body > nav.h-14 {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 9999;
        padding-bottom: env(safe-area-inset-bottom);
    }

    /* Agregar padding al contenido para no tapar con la nav fija */
    #mainColumns {
        padding-bottom: calc(60px + env(safe-area-inset-bottom));
    }
}

/* Barra de progreso con círculo arrastrable */
.progress-container {
    overflow: visible !important;
}
.progress-bar {
    transition: none;
}
.progress-thumb {
    position: absolute;
    top: 50%;
    left: 0%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background: linear-gradient(135deg, #c084fc 0%, #a855f7 100%);
    border: 2px solid #fff;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0,0,0,0.4);
    cursor: grab;
    transition: transform 0.1s ease, box-shadow 0.1s ease;
    z-index: 10;
}
.progress-thumb.green {
    background: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
}
.progress-thumb:hover {
    transform: translate(-50%, -50%) scale(1.2);
    box-shadow: 0 0 6px rgba(168, 85, 247, 0.8), 0 2px 4px rgba(0,0,0,0.4);
}
.progress-thumb.green:hover {
    box-shadow: 0 0 6px rgba(34, 197, 94, 0.8), 0 2px 4px rgba(0,0,0,0.4);
}
.progress-thumb.dragging {
    cursor: grabbing;
    transform: translate(-50%, -50%) scale(1.3);
}

/* Marquesina para título y artista */
.marquee-container {
    overflow: hidden;
    position: relative;
    width: 100%;
    max-width: 100%;
    height: 12px;
    line-height: 12px;
    mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}
.marquee-track {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    animation: marquee-scroll 12s linear infinite;
    height: 12px;
}
.marquee-content {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    white-space: nowrap;
    padding-right: 2rem;
    flex-shrink: 0;
    height: 12px;
    line-height: 12px;
}
.marquee-dot {
    color: rgba(255,255,255,0.3);
    font-size: 5px;
    flex-shrink: 0;
}
.marquee-content span {
    flex-shrink: 0;
    font-size: 10px;
    line-height: 12px;
}
@keyframes marquee-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.marquee-container:hover .marquee-track {
    animation-play-state: paused;
}

/* Panel de categoría colapsable */
.category-panel {
    overflow: hidden;
    transition: all 0.3s ease;
}
.category-panel.collapsed {
    min-width: 0 !important;
    width: 0;
    padding: 0;
    margin: 0;
    opacity: 0;
    pointer-events: none;
}
.toggle-category-btn {
    flex-shrink: 0;
    margin: 0 8px;
    background: transparent;
    border: none;
    height: 100%;
    min-height: 60px;
}
.toggle-category-btn:hover {
    background: rgba(255,255,255,0.05);
    border-radius: 4px;
}
.toggle-category-btn .separator-line {
    min-height: 50px;
}
.toggle-category-btn .toggle-arrow {
    transition: transform 0.3s ease;
}
.toggle-category-btn.collapsed .toggle-arrow {
    transform: rotate(180deg);
}

/* En pantallas grandes: mostrar solo líneas sin flecha */
@media (min-width: 768px) {
    .toggle-category-btn {
        pointer-events: none;
        cursor: default;
        margin: 0 12px;
    }
    .toggle-category-btn:hover {
        background: transparent;
    }
    .toggle-category-btn .toggle-arrow {
        display: none;
    }
    .toggle-category-btn .separator-line:first-child {
        display: block;
    }
    .toggle-category-btn .separator-line:last-child {
        display: none;
    }
}

/* PWA Standalone móvil: sin barra inferior */
@media (display-mode: standalone) and (max-width: 768px) {
    body,
    body #mainColumns {
        padding-bottom: 0;
    }
}