/* Anti-FOUC: ocultar artistColumn antes de que song-details.css cargue */
/* contain:layout paint previene que hijos causen CLS cuando song-details.css carga deferred */
#artistColumn { width: 0; min-width: 0; opacity: 0; overflow: hidden; visibility: hidden; contain: layout paint; }
#artistColumn.visible { width: 320px; min-width: 320px; opacity: 1; overflow: visible; visibility: visible; contain: none; }

/* Anti-FOUC móvil: artistColumn fixed desde el inicio para evitar layout shift cuando song-details.css carga */
@media (max-width: 600px) {
    #artistColumn {
        position: fixed;
        top: 0; right: 0; bottom: 0; left: 0;
        transform: translateX(100vw);
        width: 0;
        min-width: 0;
        opacity: 0;
        visibility: hidden;
        contain: layout paint;
    }
}

/* Anti-FOUC: Grid de géneros pre-renderizado - evita shift cuando explore.css carga */
#exploreGenres { display: none; }
#exploreGenres.active { display: block; padding: 0.5rem; }
.genres-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}
/* Genre card - dimensiones desde primer render para evitar CLS */
.genre-card {
    position: relative;
    aspect-ratio: 1.6 / 1;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    min-width: unset;
    min-height: 80px;
}
.genre-card-title {
    position: absolute;
    top: 8px;
    left: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
    z-index: 2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    max-width: 55%;
    line-height: 1.2;
}
.genre-card-image {
    position: absolute;
    bottom: -5px;
    right: -15px;
    width: 45%;
    aspect-ratio: 1;
    object-fit: cover;
    transform: rotate(25deg);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}
.genre-card-placeholder {
    position: absolute;
    bottom: 4px;
    right: 4px;
    font-size: 1.5rem;
    transform: rotate(15deg);
    opacity: 0.6;
}
/* Colores de fondo para géneros - primer render */
.genre-bg-1 { background: #E13300; }
.genre-bg-2 { background: #1DB954; }
.genre-bg-3 { background: #8D67AB; }
.genre-bg-4 { background: #1E3264; }
.genre-bg-5 { background: #E8115B; }
.genre-bg-6 { background: #148A08; }
.genre-bg-7 { background: #BC5900; }
.genre-bg-8 { background: #503750; }
.genre-bg-9 { background: #477D95; }
.genre-bg-10 { background: #0D73EC; }
.genre-bg-11 { background: #8C1932; }
.genre-bg-12 { background: #E91429; }
/* Ocultar header explorar en móvil desde primer render */
.explore-header { display: none; }
@media (min-width: 601px) {
    #exploreGenres.active { padding: 1rem; }
    .genres-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 1rem;
    }
    .genre-card {
        aspect-ratio: 1.8 / 1;
        min-width: 280px;
        min-height: 156px;
    }
    .genre-card-title {
        top: 16px;
        left: 16px;
        font-size: 1.25rem;
        max-width: 60%;
    }
    .genre-card-image { width: 55%; }
    .genre-card-placeholder {
        bottom: 8px;
        right: 8px;
        font-size: 2.5rem;
    }
    .explore-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 1rem;
    }
}

/* Estilos adicionales */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* Ocultar scrollbar pero permitir scroll */
.scrollbar-hide::-webkit-scrollbar { display: none; }
.scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }

/* Categorías en fila única */
#categoriesList {
    scroll-behavior: smooth;
}
#categoriesList > div,
#categoriesList > button {
    flex-shrink: 0;
}

/* Flechas de categorías - muy sutiles */
.cat-arrow {
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}
/* Mostrar flechas solo si hay scroll y al hacer hover */
.categories-wrapper.has-scroll:hover .cat-arrow {
    opacity: 1;
    pointer-events: auto;
}
.categories-wrapper .cat-arrow:hover svg {
    color: rgba(255,255,255,1);
    transform: scale(1.2);
}

/* Scrollbar universal - compatible con Smart TVs y navegadores antiguos */
.custom-scrollbar {
    scrollbar-width: thin;
    scrollbar-color: rgba(99, 102, 241, 0.6) rgba(255, 255, 255, 0.1);
}
.custom-scrollbar::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
.custom-scrollbar::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.6);
    border-radius: 4px;
    min-height: 40px;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.9);
}
/* Fallback para navegadores muy antiguos - barra nativa visible */
@supports not (scrollbar-width: thin) {
    body .custom-scrollbar {
        overflow-y: scroll;
    }
}

/* Indicadores de scroll (fade arriba/abajo) */
.scroll-container {
    position: relative;
}
.scroll-fade-top,
.scroll-fade-bottom {
    position: absolute;
    left: 0;
    right: 8px;
    height: 30px;
    pointer-events: none;
    z-index: 5;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.scroll-fade-top {
    top: 0;
    background: linear-gradient(to bottom, rgba(26,26,46,1), transparent);
}
.scroll-fade-bottom {
    bottom: 0;
    background: linear-gradient(to top, rgba(26,26,46,1), transparent);
}
.scroll-fade-top.visible,
.scroll-fade-bottom.visible {
    opacity: 1;
}

/* Estilos de foco para navegación con teclado/control remoto (Smart TV) */
#songsList .song-item:focus {
    background: rgba(99, 102, 241, 0.3);
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.5), inset 0 0 20px rgba(99, 102, 241, 0.1);
    transform: scale(1.02);
    z-index: 10;
    position: relative;
}
.song-item:focus::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: #6366f1;
    border-radius: 2px 0 0 2px;
}

/* Animación de foco para indicar selección activa */
@keyframes focus-pulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.5); }
    50% { box-shadow: 0 0 0 5px rgba(99, 102, 241, 0.3); }
}
.song-item:focus-visible {
    animation: focus-pulse 1.5s ease-in-out infinite;
}

/* Animación del reproductor */
@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.3); }
    50% { box-shadow: 0 0 40px rgba(99, 102, 241, 0.6); }
}
.playing { animation: pulse-glow 2s ease-in-out infinite; }

/* Efecto visual para covers seleccionados/reproduciendo */
.carousel-item.playing,
.category-cover-item.playing {
    transform: scale(1.08);
    outline: 3px solid #3b82f6;
    outline-offset: 2px;
    border-radius: 12px;
    z-index: 5;
}

/* Efecto visual para canción reproduciéndose en la lista */
#songsList .song-item.playing {
    background: rgba(99, 102, 241, 0.25);
    border-left: 3px solid #3b82f6;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
}

/* Barra de progreso con círculo arrastrable */
#progressContainerInline.progress-container {
    height: 12px;
    overflow: visible;
}
.progress-bar {
    transition: none;
}
.progress-thumb {
    position: absolute;
    top: 50%;
    left: 0%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    background: linear-gradient(135deg, #818cf8 0%, #6366f1 100%);
    border: 2px solid #fff;
    border-radius: 50%;
    box-shadow: 0 1px 4px rgba(0,0,0,0.4);
    cursor: grab;
    transition: transform 0.1s ease, box-shadow 0.1s ease, width 0.1s ease, height 0.1s ease;
    z-index: 10;
}
.progress-thumb:hover {
    transform: translate(-50%, -50%) scale(1.15);
    box-shadow: 0 0 8px rgba(99, 102, 241, 0.8), 0 2px 6px rgba(0,0,0,0.4);
}
.progress-thumb.dragging {
    cursor: grabbing;
    transform: translate(-50%, -50%) scale(1.25);
    box-shadow: 0 0 12px rgba(99, 102, 241, 1), 0 2px 8px rgba(0,0,0,0.5);
}

/* Marquesina para título y artista */
.marquee-container {
    overflow: hidden;
    position: relative;
    width: 100%;
    height: 20px;
    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: flex;
    width: max-content;
    animation: marquee-scroll 15s linear infinite;
}
.marquee-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
    padding-right: 3rem;
}
.marquee-dot {
    color: rgba(255,255,255,0.3);
    font-size: 0.5rem;
}
@keyframes marquee-scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}
/* Pausar marquesina al hacer hover */
.marquee-container:hover .marquee-track {
    animation-play-state: paused;
}

/* Safe area para notch */
.safe-top { padding-top: env(safe-area-inset-top); }
.safe-bottom { padding-bottom: env(safe-area-inset-bottom); }

/* Touch feedback */
.touch-feedback:active { transform: scale(0.95); opacity: 0.8; }

/* Título de canción en 2 líneas máximo */
.song-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}

/* Fix para select en tema oscuro */
select option {
    background-color: #1a1a2e;
    color: white;
}

/* Select de categoría con flecha llamativa */
.category-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding-right: 35px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f59e0b' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 20px;
    text-shadow: 0 0 10px rgba(255,255,255,0.5);
}

.category-select:hover {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fbbf24' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
}

/* Lista de canciones - siempre una columna */
#songsList {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Carrusel infinito fluido */
.carousel-wrapper {
    position: relative;
    overflow-x: auto;
    overflow-y: visible;
    padding: 12px 0;
    margin: -12px 0;
    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);
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    scrollbar-width: none;
}

.carousel-wrapper::-webkit-scrollbar {
    display: none;
}

.carousel-track {
    display: flex;
    gap: 1rem;
    width: max-content;
    animation: scroll-left 60s linear infinite;
    will-change: transform;
    padding: 8px 0;
}

.carousel-track:hover,
.carousel-track.touch-active {
    animation-play-state: paused;
}

/* Velocidades diferentes para cada sección */
.carousel-track.speed-slow { animation-duration: 240s; }
.carousel-track.speed-medium { animation-duration: 180s; }
.carousel-track.speed-fast { animation-duration: 120s; }

@keyframes scroll-left {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Items del carrusel */
.carousel-item {
    flex-shrink: 0;
    transition: transform 0.15s ease-out, opacity 0.15s ease-out;
    will-change: transform, opacity;
}

.carousel-item:hover {
    transform: scale(1.05) translateY(-2px);
    z-index: 10;
}

.carousel-track:hover .carousel-item:not(:hover) {
    opacity: 0.7;
    transform: scale(0.98);
}

/* Flechas del carrusel */
.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    height: 80%;
    width: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20;
    color: white;
    opacity: 0;
    transition: opacity 0.3s ease;
    cursor: pointer;
    border: none;
    background: transparent;
}

.carousel-wrapper:hover .carousel-arrow {
    opacity: 0.3;
}

.carousel-wrapper .carousel-arrow:hover {
    opacity: 1;
}

.carousel-arrow-left {
    left: 0;
    background: linear-gradient(to right, rgba(26,26,46,0.9), transparent);
    padding-left: 8px;
}

.carousel-arrow-right {
    right: 0;
    background: linear-gradient(to left, rgba(26,26,46,0.9), transparent);
    padding-right: 8px;
}

.carousel-arrow svg {
    width: 28px;
    height: 28px;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}

/* Divisor interactivo columnas - SIN transiciones para respuesta inmediata */
.column-divider {
    width: 24px;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    z-index: 20;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
}

.column-divider:hover,
.column-divider:active {
    background: rgba(99, 102, 241, 0.15);
}

.divider-handle {
    width: 16px;
    height: 70px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.6), 0 4px 8px rgba(0,0,0,0.3);
    animation: pulse-divider 2s ease-in-out infinite;
    margin-top: -180px;
    overflow: visible;
}

@keyframes pulse-divider {
    0%, 100% {
        box-shadow: 0 0 15px rgba(245, 158, 11, 0.6), 0 4px 8px rgba(0,0,0,0.3);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 25px rgba(245, 158, 11, 0.9), 0 4px 12px rgba(0,0,0,0.4);
        transform: scale(1.05);
    }
}

.column-divider:hover .divider-handle,
.column-divider:active .divider-handle {
    background: linear-gradient(135deg, #fbbf24, #f87171);
    box-shadow: 0 0 30px rgba(245, 158, 11, 1), 0 4px 15px rgba(0,0,0,0.5);
    animation: none;
    transform: scale(1.1);
}

.divider-icon {
    width: 18px;
    height: 18px;
    color: white;
    pointer-events: none;
    filter: drop-shadow(0 2px 3px rgba(0,0,0,0.4));
    margin-right: -8px;
}

.column-divider:hover .divider-icon {
    color: white;
}

/* Estado colapsado */
.column-divider.collapsed .divider-icon {
    transform: rotate(180deg);
}

.songs-column {
    width: 380px;
    min-width: 380px;
    max-width: 100vw;
    overflow: hidden;
    padding-bottom: 64px;
    transition-property: none;
    transition-duration: 0s;
}

/* Collapsed: display:none elimina del layout sin animación posible */
.songs-column.collapsed {
    display: none;
}

/* En desktop (>600px) */
@media (min-width: 601px) {
    .songs-column:not(.collapsed) {
        display: flex;
    }
    .column-divider.collapsed .divider-icon {
        transform: rotate(180deg);
    }
}

/* Fix scroll en móvil */
#viewHome aside {
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

/* ========================================
   RESPONSIVE MÓVIL - Layout adaptativo
   ======================================== */
@media (max-width: 768px) {
    /* Prevenir scroll horizontal y overscroll en móvil */
    html, body {
        overflow-x: hidden;
        overscroll-behavior-x: none;
    }
    /* Body: usar dvh para evitar problemas con barra de direcciones */
    body {
        height: 100dvh;
        min-height: -webkit-fill-available;
    }

    /* Columna de canciones - responsive (solo cuando NO está colapsado) */
    .songs-column:not(.collapsed) {
        width: min(380px, calc(100vw - 32px));
        min-width: min(380px, calc(100vw - 32px));
        padding-bottom: 0;
        margin-bottom: calc(-1 * env(safe-area-inset-bottom));
    }

    /* ContentColumn ocupa todo el espacio (no artistColumn) */
    #contentColumn {
        flex: 1;
        border-left: none;
    }

    /* 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 main para no tapar contenido con la nav fija */
    main {
        padding-bottom: calc(56px + env(safe-area-inset-bottom));
    }
}

/* Menú contextual compacto en pantallas pequeñas */
@media (max-width: 480px) {
    body #songContextMenu {
        min-width: 160px;
        max-width: 180px;
        padding: 4px 0;
    }
    body #songContextMenu button,
    body #songContextMenu > div > button {
        padding: 6px 10px;
        gap: 8px;
        font-size: 13px;
    }
    body #songContextMenu svg {
        width: 16px;
        height: 16px;
    }
    body #songContextMenu span {
        font-size: 13px;
    }
    body #playlistSubmenu,
    body #genreSubmenu {
        min-width: 140px;
        font-size: 12px;
    }
    body #playlistSubmenu button,
    body #genreSubmenu button {
        padding: 5px 8px;
        font-size: 12px;
    }
}

@media (max-width: 360px) {
    body #songContextMenu {
        min-width: 140px;
        max-width: 160px;
    }
    body #songContextMenu button,
    body #songContextMenu > div > button {
        padding: 5px 8px;
        gap: 6px;
        font-size: 12px;
    }
    body #songContextMenu svg {
        width: 14px;
        height: 14px;
    }
    body #songContextMenu span {
        font-size: 12px;
    }

}

/* PWA Standalone móvil: ajustar padding para barra inferior */
@media (display-mode: standalone) and (max-width: 768px) {
    body .songs-column,
    body .songs-column:not(.collapsed) {
        padding-bottom: 64px;
    }
}

/* ========================================
   MÓVIL ≤600px - Botón flotante único
   Usa 'body' prefix para mayor especificidad: body .x > .x
   Así SIEMPRE gana sobre las reglas base sin necesitar !important
   ======================================== */
@media (max-width: 600px) {
    /* Botón flotante - fuera del flex layout */
    body .column-divider {
        position: fixed;
        right: 10px;
        top: 50%;
        transform: translateY(-50%);
        width: auto;
        z-index: 50;
        background: transparent;
        padding: 8px;
        flex-shrink: unset;
    }
    body .column-divider.collapsed {
        display: none;
    }
    body .column-divider:hover,
    body .column-divider:active {
        background: transparent;
    }
    /* Handle: tamaño fijo, sin animación, sin margin offset */
    body .divider-handle {
        width: 14px;
        height: 56px;
        margin-top: 0;
        border-radius: 7px;
        animation-name: none;
        overflow: visible;
    }
    /* Sin escalar en hover/active */
    body .column-divider:hover .divider-handle,
    body .column-divider:active .divider-handle {
        transform: none;
        animation-name: none;
    }
    /* Flecha sobresale del botón en la dirección que apunta */
    body .divider-icon {
        margin-left: -8px;
        margin-right: 0;
    }
    body .column-divider.collapsed .divider-icon {
        transform: rotate(180deg);
    }
    /* Lista de canciones: ancho completo */
    body .songs-column:not(.collapsed) {
        display: flex;
        width: 100vw;
        min-width: 100vw;
        max-width: 100vw;
        padding-bottom: 64px;
    }
}

/* ========================================
   CARGA INICIAL - Pausar carruseles hasta que todo cargue
   ======================================== */
body.loading-phase .carousel-track {
    animation-play-state: paused;
}
body.loading-phase .carousel-item {
    transition-duration: 0s;
}

/* ========================================
   CONTENT-VISIBILITY - Secciones offscreen no renderizan
   ======================================== */
#categoriesSection {
    content-visibility: auto;
    contain-intrinsic-size: auto 500px;
}
#categoryCoversSection {
    content-visibility: auto;
    contain-intrinsic-size: auto 400px;
}

/* ========================================
   MODO SIN ANIMACIONES - Para dispositivos de baja memoria
   ======================================== */
body.reduce-animations .carousel-track,
body.reduce-animations .carousel-track.speed-slow,
body.reduce-animations .carousel-track.speed-medium,
body.reduce-animations .carousel-track.speed-fast {
    animation-name: none;
    animation-duration: 0s;
}
body.reduce-animations .marquee-track {
    animation-name: none;
    animation-duration: 0s;
}
body.reduce-animations #playerInline .playing,
body.reduce-animations .playing {
    animation-name: none;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}
body.reduce-animations #songsList .song-item:focus-visible {
    animation-name: none;
}
body.reduce-animations .carousel-wrapper .carousel-item {
    transition-duration: 0s;
    transition-property: none;
}
body.reduce-animations .carousel-wrapper .carousel-item:hover {
    transform: none;
}
body.reduce-animations .carousel-wrapper .carousel-track:hover .carousel-item:not(:hover) {
    opacity: 1;
    transform: none;
}
/* Marquesina estática */
body.reduce-animations .marquee-container {
    mask-image: none;
    -webkit-mask-image: none;
}
body.reduce-animations .marquee-container .marquee-content.marquee-clone {
    display: none;
}
body.reduce-animations .marquee-container .marquee-content {
    padding-right: 0;
}
/* Transiciones desactivadas */
body.reduce-animations .touch-feedback:active {
    transform: none;
}
body.reduce-animations .categories-wrapper .cat-arrow {
    transition-duration: 0s;
}
body.reduce-animations #progressContainerInline .progress-thumb {
    transition-duration: 0s;
}

/* =====================================================
   CSS móvil: estado inicial + respeto a explore.js
   explore.js usa clase .active en #exploreGenres
   y .carousels-hidden en carruseles
   ===================================================== */
@media (max-width: 600px) {
    /* Estado inicial: mostrar géneros con clase active */
    #exploreGenres.active {
        display: block;
    }

    /* ANTI-CLS: Carruseles ocultos por defecto en móvil.
       explore.js closeMobileWithCategory() añade .mobile-carousels-show para mostrarlos.
       Esto previene que app.js los muestre antes de que explore.js los oculte.
       favoritesCarouselSection se maneja exclusivamente por favorites.css */
    #recentSection,
    #topSection,
    #categoriesSection {
        display: none;
    }

    /* Mostrar cuando explore cierra y quiere mostrarlos (NO favoritas - se maneja por su chip) */
    #recentSection.mobile-carousels-show,
    #topSection.mobile-carousels-show,
    #categoriesSection.mobile-carousels-show {
        display: block;
    }

    /* Mantener ocultos con carousels-hidden (override de mobile-carousels-show) */
    #recentSection.carousels-hidden,
    #topSection.carousels-hidden,
    #categoriesSection.carousels-hidden {
        display: none;
    }

    /* Flechas de categorías: explore.js las maneja con style.display */
}