/* ==========================================================================
   VishvaX Music — World-Class Mobile Design System (css/mobile.css)
   Target: Mobile Devices & Tablets (Screen width <= 768px)
   Desktop Preservation: Zero changes to screens > 768px (100% Desktop Preserved)
   ========================================================================== */

@media (max-width: 768px) {

  /* --- 1. Global Viewport & Reset Overrides for Mobile --- */
  :root {
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-left: env(safe-area-inset-left, 0px);
    --safe-right: env(safe-area-inset-right, 0px);
    --mobile-nav-height: 58px;
    --mobile-mini-player-height: 58px;
    --mobile-header-height: 56px;
    --mobile-border-glow: rgba(168, 85, 247, 0.4);
  }

  html, body {
    width: 100%;
    min-height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    position: static;
    overscroll-behavior-y: auto;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
  }

  .app-container {
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: visible;
    position: relative;
    padding-bottom: 0 !important;
    background: #121212;
  }

  /* --- 2. Mobile App Header (Top Bar) --- */
  .app-header {
    height: calc(var(--mobile-header-height) + var(--safe-top));
    padding-top: var(--safe-top);
    padding-left: 14px;
    padding-right: 14px;
    background: rgba(10, 11, 20, 0.88);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    z-index: 80;
    flex-shrink: 0;
  }

  .header-left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
  }

  .mobile-menu-toggle {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s ease;
  }

  .mobile-menu-toggle:active {
    transform: scale(0.92);
    background: rgba(168, 85, 247, 0.2);
    border-color: var(--accent-purple);
  }

  /* Hide Desktop History Back/Forward on Mobile to save space */
  .history-nav-group {
    display: none !important;
  }

  /* Mobile Search Bar - Compact & Fluid */
  .header-search-wrapper {
    flex: 1;
    min-width: 0;
    max-width: 100%;
  }

  .search-input-box {
    height: 38px;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 9999px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
  }

  .search-input-box:focus-within {
    background: rgba(22, 22, 38, 0.95);
    border-color: var(--accent-purple);
    box-shadow: 0 0 14px rgba(168, 85, 247, 0.3);
  }

  .search-input-box input {
    font-size: 0.85rem;
    width: 100%;
    color: #fff;
  }

  .search-input-box input::placeholder {
    font-size: 0.82rem;
    color: var(--text-muted);
  }

  .search-suggestions-dropdown {
    position: fixed;
    top: calc(var(--mobile-header-height) + var(--safe-top) + 6px);
    left: 12px;
    right: 12px;
    width: auto;
    max-height: 60vh;
    border-radius: 16px;
    background: rgba(15, 15, 25, 0.98);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
    z-index: 1200;
  }

  /* Header Right Tools */
  .header-right {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
  }

  .region-selector-wrapper {
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    height: 36px;
  }

  .region-selector-wrapper select {
    font-size: 0.75rem;
    max-width: 68px;
  }

  .region-selector-wrapper svg {
    width: 14px;
    height: 14px;
  }

  .header-action-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
  }

  /* Hide diagnostics & shortcuts from mobile topbar (moved to drawer/settings) */
  #btn-diagnostics, #btn-shortcuts {
    display: none !important;
  }

  /* --- 3. Mobile Sidebar: Off-Canvas Animated Drawer --- */
  .app-sidebar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    bottom: 0 !important;
    width: min(300px, 82vw) !important;
    height: 100% !important;
    height: 100dvh !important;
    background: #0b0c17 !important;
    z-index: 600 !important;
    transform: translateX(-105%) !important;
    transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.32s ease !important;
    border-right: 1px solid rgba(255, 255, 255, 0.12) !important;
    padding: calc(var(--safe-top) + 16px) 16px calc(var(--safe-bottom) + 16px) !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
    box-shadow: none;
  }

  .app-sidebar.open {
    transform: translateX(0) !important;
    box-shadow: 20px 0 60px rgba(0, 0, 0, 0.85), 0 0 30px rgba(168, 85, 247, 0.25) !important;
  }

  .sidebar-header {
    margin-bottom: 1.5rem;
    padding: 0 4px;
  }

  .sidebar-close-btn {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .sidebar-close-btn:active {
    transform: scale(0.9);
  }

  .nav-item {
    padding: 0.75rem 1rem;
    min-height: 48px;
    font-size: 0.95rem;
    border-radius: 12px;
  }

  /* Backdrop Overlay for Sidebar */
  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 550;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

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

  /* --- 4. Main Content Area on Mobile --- */
  .app-main {
    flex: 1;
    min-height: 100vh;
    margin-left: 0 !important;
    width: 100% !important;
    display: flex;
    flex-direction: column;
    overflow: visible !important;
    position: relative;
    padding-bottom: calc(var(--mobile-nav-height) + var(--mobile-mini-player-height) + var(--safe-bottom) + 36px) !important;
  }

  .views-container, .content-scroll-container {
    width: 100% !important;
    overflow: visible !important;
  }

  .view-panel {
    padding: 12px 14px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* Horizontal Momentum Scroll for Pills & Carousels */
  .pills-scroll, .mood-pills-row {
    display: flex !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    gap: 8px !important;
    padding-bottom: 6px !important;
    margin-bottom: 16px !important;
    width: 100% !important;
  }

  .pills-scroll::-webkit-scrollbar, .mood-pills-row::-webkit-scrollbar {
    display: none !important;
  }

  .pill-item, .mood-pill {
    flex-shrink: 0;
    white-space: nowrap;
    padding: 7px 15px;
    font-size: 0.8rem;
    border-radius: 9999px;
  }

  /* Hero Banner & Card: Responsive Mobile Flow */
  .hero-card, .hero-banner {
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 20px 16px !important;
    border-radius: 16px !important;
    margin-bottom: 20px !important;
    position: relative;
    overflow: hidden;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-tag {
    font-size: 0.65rem;
    margin-bottom: 6px;
  }

  .hero-title {
    font-size: 1.45rem;
    line-height: 1.25;
    margin-bottom: 6px;
  }

  .hero-subtitle {
    font-size: 0.82rem;
    margin-bottom: 14px;
    line-height: 1.4;
  }

  .hero-buttons {
    display: flex;
    gap: 10px;
    width: 100%;
  }

  .hero-buttons .btn-primary, .hero-buttons .btn-secondary {
    flex: 1;
    justify-content: center;
    min-height: 44px;
    font-size: 0.88rem;
    padding: 0.6rem 1rem;
    border-radius: 12px;
  }

  .hero-artwork-glow {
    width: 100%;
    display: flex;
    justify-content: center;
  }

  .hero-artwork-glow img {
    width: 130px;
    height: 130px;
    border-radius: 18px;
    box-shadow: 0 12px 30px rgba(168, 85, 247, 0.35);
  }

  /* Section Headers */
  .section-container {
    margin-bottom: 24px;
  }

  .section-header {
    margin-bottom: 12px;
  }

  .section-title {
    font-size: 1.15rem;
    letter-spacing: -0.3px;
  }

  .section-subtitle {
    font-size: 0.75rem;
  }

  .section-more-link {
    font-size: 0.8rem;
    padding: 4px 10px;
  }

  /* Grids & Horizontal Carousels */
  .tracks-grid {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
  }

  .cards-carousel {
    display: flex !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    gap: 12px !important;
    padding-bottom: 8px !important;
  }

  .cards-carousel::-webkit-scrollbar {
    display: none !important;
  }

  .media-card {
    min-width: 140px !important;
    max-width: 140px !important;
    padding: 10px;
    border-radius: 16px;
  }

  .media-card-img-wrap {
    width: 120px;
    height: 120px;
    border-radius: 12px;
    margin-bottom: 8px;
  }

  .media-card-title {
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .media-card-sub {
    font-size: 0.72rem;
  }

  /* Track Cards in Grids (e.g. Trending Today) converted to Sleek Mobile List Items */
  .track-card {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    padding: 8px 12px !important;
    border-radius: 14px !important;
    background: rgba(255, 255, 255, 0.035) !important;
    border: 1px solid rgba(255, 255, 255, 0.06) !important;
    gap: 12px !important;
    min-height: 60px;
  }

  .track-card.playing {
    background: rgba(168, 85, 247, 0.12) !important;
    border-color: var(--accent-purple) !important;
    box-shadow: 0 0 16px rgba(168, 85, 247, 0.25) !important;
  }

  .track-card-thumb-wrap {
    width: 46px !important;
    height: 46px !important;
    min-width: 46px !important;
    border-radius: 10px !important;
    margin-bottom: 0 !important;
    flex-shrink: 0;
  }

  .track-card-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: left;
  }

  .track-card-title {
    font-size: 0.9rem !important;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
  }

  .track-card-artist {
    font-size: 0.76rem !important;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .track-card-badge {
    display: none !important;
  }

  .track-card-actions {
    margin-left: auto;
    flex-shrink: 0;
  }

  .track-card-like-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
  }

  /* --- 5. Mobile Tables: Restyled into Spotify-Style Music Tiles --- */
  .table-container {
    overflow-x: visible !important;
    padding: 0 !important;
    border: none !important;
    background: transparent !important;
  }

  .tracks-table {
    display: block !important;
    width: 100% !important;
  }

  .tracks-table thead {
    display: none !important;
  }

  .tracks-table tbody {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    width: 100% !important;
  }

  .tracks-table tr.table-row {
    display: flex !important;
    align-items: center !important;
    padding: 8px 12px !important;
    border-radius: 14px !important;
    background: rgba(255, 255, 255, 0.035) !important;
    border: 1px solid rgba(255, 255, 255, 0.05) !important;
    position: relative !important;
    gap: 10px !important;
    min-height: 60px !important;
    transition: background 0.15s ease;
  }

  .tracks-table tr.table-row:active {
    background: rgba(255, 255, 255, 0.08) !important;
  }

  .tracks-table tr.table-row.playing {
    background: rgba(168, 85, 247, 0.14) !important;
    border-color: var(--accent-purple) !important;
    box-shadow: 0 0 16px rgba(168, 85, 247, 0.25) !important;
  }

  .tracks-table .col-num {
    display: none !important;
  }

  .tracks-table td:nth-child(2) {
    flex: 1 !important;
    min-width: 0 !important;
    padding: 0 !important;
  }

  .tracks-table .col-title-cell {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    min-width: 0 !important;
  }

  .tracks-table .col-title-img {
    width: 44px !important;
    height: 44px !important;
    min-width: 44px !important;
    border-radius: 8px !important;
    object-fit: cover !important;
    flex-shrink: 0 !important;
  }

  .tracks-table .col-title-text {
    font-size: 0.9rem !important;
    font-weight: 600 !important;
    color: #fff !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    max-width: 200px !important;
  }

  .tracks-table .col-artist-text {
    font-size: 0.76rem !important;
    color: var(--text-secondary) !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    max-width: 200px !important;
  }

  .tracks-table .col-album {
    display: none !important;
  }

  .tracks-table .col-duration {
    font-size: 0.72rem !important;
    color: var(--text-muted) !important;
    font-family: var(--font-mono) !important;
    padding: 0 4px !important;
    flex-shrink: 0 !important;
  }

  .tracks-table .col-actions {
    padding: 0 !important;
    flex-shrink: 0 !important;
  }

  .table-like-btn {
    width: 36px !important;
    height: 36px !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
  }

  /* View Header Banners on Mobile */
  .view-header-banner, .playlist-detail-header, .artist-hero-header {
    flex-direction: column !important;
    text-align: center !important;
    padding: 20px 14px !important;
    gap: 16px !important;
  }

  .playlist-cover-art, .artist-avatar-wrap img {
    width: 140px !important;
    height: 140px !important;
    margin: 0 auto !important;
    border-radius: 20px !important;
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.6) !important;
  }

  .playlist-title {
    font-size: 1.4rem !important;
    margin-bottom: 4px !important;
  }

  .playlist-action-row {
    justify-content: center !important;
    width: 100% !important;
  }

  .playlist-action-row button {
    flex: 1 !important;
    min-height: 44px !important;
    justify-content: center !important;
  }

  /* Filter Chips in Search View */
  .filter-chips-row {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    padding-bottom: 4px !important;
    gap: 8px !important;
  }

  .filter-chips-row::-webkit-scrollbar {
    display: none !important;
  }

  .filter-chip {
    flex-shrink: 0 !important;
    padding: 6px 14px !important;
    font-size: 0.8rem !important;
  }

  /* --- 6. Mobile Floating Mini-Player Bar --- */
  .app-player-bar {
    position: fixed !important;
    bottom: calc(var(--mobile-nav-height) + var(--safe-bottom) + 8px) !important;
    left: 10px !important;
    right: 10px !important;
    height: var(--mobile-mini-player-height) !important;
    background: rgba(18, 18, 28, 0.92) !important;
    backdrop-filter: blur(28px) !important;
    -webkit-backdrop-filter: blur(28px) !important;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
    border-radius: 16px !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 20px rgba(168, 85, 247, 0.22) !important;
    padding: 0 10px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 8px !important;
    z-index: 150 !important;
    overflow: hidden !important;
    cursor: pointer;
  }

  /* Built-in Slim Real-Time Progress Bar at bottom edge of Mini-Player */
  .app-player-bar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2.5px;
    background: var(--accent-gradient);
    width: var(--progress-percent, 0%);
    transition: width 0.25s linear;
    border-radius: 0 0 16px 16px;
    z-index: 2;
  }

  /* Left Track Info on Mini-Player */
  .player-track-info {
    flex: 1 !important;
    min-width: 0 !important;
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
  }

  .player-thumbnail-wrap {
    width: 42px !important;
    height: 42px !important;
    min-width: 42px !important;
    border-radius: 10px !important;
    overflow: hidden !important;
    flex-shrink: 0 !important;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4) !important;
  }

  .player-thumbnail-wrap img {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
  }

  .player-thumb-hover-icon {
    display: none !important;
  }

  .player-text-meta {
    flex: 1 !important;
    min-width: 0 !important;
  }

  .player-track-title {
    font-size: 0.88rem !important;
    font-weight: 700 !important;
    color: #fff !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    line-height: 1.2 !important;
  }

  .player-track-subline {
    font-size: 0.74rem !important;
    color: var(--text-secondary) !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    line-height: 1.2 !important;
  }

  .player-status-sep, .player-play-state {
    display: none !important;
  }

  /* Mini-Player Like Button */
  .player-like-btn {
    width: 36px !important;
    height: 36px !important;
    flex-shrink: 0 !important;
  }

  /* Center Controls on Mini-Player: Keep ONLY Play/Pause & Next Button */
  .player-center-controls {
    flex: initial !important;
    width: auto !important;
  }

  .player-seekbar-row {
    display: none !important;
  }

  .player-buttons-row {
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
  }

  #player-shuffle-btn,
  #player-prev-btn,
  #player-repeat-btn {
    display: none !important;
  }

  .btn-play-pause {
    width: 40px !important;
    height: 40px !important;
    min-width: 40px !important;
    border-radius: 50% !important;
    background: var(--accent-gradient) !important;
    box-shadow: 0 4px 12px rgba(168, 85, 247, 0.45) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex-shrink: 0 !important;
  }

  .btn-play-pause svg {
    width: 18px !important;
    height: 18px !important;
  }

  #player-next-btn {
    width: 36px !important;
    height: 36px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    color: #fff !important;
    flex-shrink: 0 !important;
  }

  /* Hide Desktop Right-Hand Volume & Excess Tools from Mini-Player */
  .player-right-controls {
    display: none !important;
  }

  /* --- 7. Mobile Bottom Navigation Bar --- */
  .mobile-bottom-nav {
    display: flex !important;
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    height: calc(var(--mobile-nav-height) + var(--safe-bottom)) !important;
    padding-bottom: var(--safe-bottom) !important;
    background: rgba(9, 10, 18, 0.95) !important;
    backdrop-filter: blur(24px) !important;
    -webkit-backdrop-filter: blur(24px) !important;
    border-top: 1px solid rgba(255, 255, 255, 0.08) !important;
    z-index: 200 !important;
    justify-content: space-around !important;
    align-items: center !important;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5) !important;
  }

  .mobile-nav-btn {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 3px !important;
    background: transparent !important;
    border: none !important;
    color: var(--text-muted) !important;
    font-size: 0.68rem !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    min-width: 60px !important;
    min-height: 48px !important;
    transition: all 0.2s ease !important;
  }

  .mobile-nav-btn svg {
    transition: transform 0.2s ease, color 0.2s ease !important;
  }

  .mobile-nav-btn.active {
    color: #fff !important;
  }

  .mobile-nav-btn.active svg {
    color: var(--accent-purple) !important;
    transform: translateY(-2px) scale(1.1) !important;
    filter: drop-shadow(0 0 6px rgba(168, 85, 247, 0.6)) !important;
  }

  /* --- 8. Mobile Fullscreen Immersive Player Sheet --- */
  .fullscreen-player-modal {
    position: fixed !important;
    inset: 0 !important;
    width: 100vw !important;
    height: 100% !important;
    height: 100dvh !important;
    background: #07070d !important;
    z-index: 1000 !important;
    display: none;
    flex-direction: column !important;
    overflow: hidden !important;
    padding: var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left) !important;
  }

  .fullscreen-player-modal.active {
    display: flex !important;
    animation: mobileSlideUp 0.32s cubic-bezier(0.16, 1, 0.3, 1) forwards !important;
  }

  @keyframes mobileSlideUp {
    from {
      transform: translateY(100%);
      opacity: 0.8;
    }
    to {
      transform: translateY(0);
      opacity: 1;
    }
  }

  .fs-player-header {
    padding: 12px 18px !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    flex-shrink: 0 !important;
  }

  .fs-brand {
    font-size: 0.95rem !important;
  }

  .fs-tabs {
    padding: 3px !important;
  }

  .fs-tab-btn {
    padding: 0.35rem 0.9rem !important;
    font-size: 0.78rem !important;
  }

  .fs-close-btn {
    width: 40px !important;
    height: 40px !important;
    border-radius: 50% !important;
    background: rgba(255, 255, 255, 0.08) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    color: #fff !important;
  }

  /* Mobile Fullscreen Body: Scrollable Vertical Stack */
  .fs-player-body {
    flex: 1 !important;
    display: flex !important;
    flex-direction: column !important;
    padding: 16px 20px 24px !important;
    gap: 16px !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    align-items: center !important;
  }

  .fs-artwork-column {
    width: 100% !important;
    max-width: 360px !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
  }

  .fs-artwork-container {
    width: min(72vw, 280px) !important;
    height: min(72vw, 280px) !important;
    aspect-ratio: 1 !important;
    border-radius: 24px !important;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.8), 0 0 30px rgba(168, 85, 247, 0.3) !important;
    margin-bottom: 1.25rem !important;
  }

  .fs-meta {
    width: 100% !important;
    text-align: center !important;
    margin-bottom: 0.75rem !important;
  }

  .fs-title {
    font-size: 1.45rem !important;
    font-weight: 800 !important;
    color: #fff !important;
    margin-bottom: 4px !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
  }

  .fs-artist {
    font-size: 0.95rem !important;
    color: var(--text-secondary) !important;
  }

  .fs-album {
    font-size: 0.78rem !important;
    color: var(--text-muted) !important;
  }

  .fs-visualizer-wrap {
    width: 100% !important;
    margin-top: 6px !important;
  }

  /* Fullscreen Lyrics & Queue Panels on Mobile */
  .fs-content-column {
    width: 100% !important;
    flex: 1 !important;
  }

  .lyrics-container {
    padding: 1rem 0 !important;
    text-align: center !important;
  }

  .lyric-line {
    font-size: 1.2rem !important;
    padding: 10px 0 !important;
    opacity: 0.4 !important;
  }

  .lyric-line.active {
    font-size: 1.45rem !important;
    font-weight: 800 !important;
    opacity: 1 !important;
    color: #fff !important;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px rgba(168, 85, 247, 0.5);
  }

  /* --- 9. Mobile Bottom Sheet Modals --- */
  .modal-overlay {
    align-items: flex-end !important;
    padding: 0 !important;
    background: rgba(0, 0, 0, 0.8) !important;
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
  }

  .modal-card {
    width: 100% !important;
    max-width: 100% !important;
    max-height: 88vh !important;
    border-radius: 26px 26px 0 0 !important;
    padding: 20px 18px calc(var(--safe-bottom) + 20px) !important;
    animation: sheetSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
  }

  @keyframes sheetSlideUp {
    from {
      transform: translateY(100%);
    }
    to {
      transform: translateY(0);
    }
  }

  .modal-header {
    margin-bottom: 1.25rem !important;
  }

  .modal-header h2 {
    font-size: 1.2rem !important;
  }

  .modal-close {
    width: 38px !important;
    height: 38px !important;
    border-radius: 50% !important;
    background: rgba(255, 255, 255, 0.08) !important;
  }

  .input-with-button {
    flex-direction: column !important;
    gap: 10px !important;
  }

  .input-with-button input {
    height: 48px !important;
    font-size: 0.95rem !important;
  }

  .input-with-button button {
    height: 46px !important;
    width: 100% !important;
    justify-content: center !important;
  }

  .sleep-options-grid, .diagnostics-grid, .themes-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
  }

  .sleep-btn, .theme-card-btn {
    min-height: 48px !important;
    font-size: 0.88rem !important;
  }

  /* Toasts on Mobile */
  #toasts-container {
    bottom: calc(var(--mobile-nav-height) + var(--mobile-mini-player-height) + var(--safe-bottom) + 16px) !important;
    left: 14px !important;
    right: 14px !important;
    width: auto !important;
    align-items: center !important;
  }

  .toast {
    width: auto !important;
    max-width: 100% !important;
    font-size: 0.85rem !important;
  }

  /* --- 23. Complete Mobile Playlist Redesign Rules --- */
  .playlists-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
    width: 100% !important;
  }

  .playlist-card {
    padding: 8px !important;
    border-radius: 8px !important;
  }

  .playlist-card-art {
    margin-bottom: 6px !important;
    border-radius: 6px !important;
  }

  .playlist-card-title {
    font-size: 0.82rem !important;
    margin-top: 4px !important;
    line-height: 1.25 !important;
  }

  .playlist-card-sub {
    font-size: 0.72rem !important;
  }

  /* Inside Playlist Mobile: Compact Header without giant posters */
  .playlist-header-compact {
    flex-direction: column !important;
    align-items: flex-start !important;
    text-align: left !important;
    padding: 12px 0 16px !important;
    gap: 10px !important;
    margin-bottom: 12px !important;
  }

  /* Hide oversized artwork on mobile inside playlist so songs are visible immediately */
  .playlist-header-compact-art {
    display: none !important;
  }

  .playlist-header-compact-title {
    font-size: 1.45rem !important;
    line-height: 1.15 !important;
    margin-bottom: 3px !important;
  }

  .playlist-header-compact-meta {
    font-size: 0.76rem !important;
    margin-bottom: 8px !important;
    gap: 4px !important;
  }

  .playlist-header-compact-actions {
    width: 100% !important;
    display: flex !important;
    gap: 8px !important;
  }

  .btn-playlist-play,
  .btn-playlist-secondary,
  .btn-playlist-danger {
    flex: 1 !important;
    justify-content: center !important;
    min-height: 42px !important;
    font-size: 0.82rem !important;
    padding: 8px 12px !important;
  }

  /* Mobile Song Row: Ultra-clean horizontal list */
  .playlist-songs-list {
    gap: 3px !important;
  }

  .playlist-song-row {
    padding: 7px 8px !important;
    gap: 10px !important;
    min-height: 48px !important;
    border-radius: 8px !important;
  }

  .song-row-indicator {
    width: 24px !important;
    height: 24px !important;
    font-size: 0.8rem !important;
  }

  .song-row-details {
    min-width: 0 !important;
  }

  .song-row-title {
    font-size: 0.88rem !important;
    line-height: 1.25 !important;
  }

  .song-row-artist {
    font-size: 0.74rem !important;
  }

  .song-row-right {
    gap: 8px !important;
  }

  .song-row-duration {
    font-size: 0.76rem !important;
    min-width: 32px !important;
  }

  .song-row-more-btn {
    width: 36px !important;
    height: 36px !important;
  }

  /* Mobile Context Menu */
  .track-context-menu {
    left: 16px !important;
    right: 16px !important;
    max-width: calc(100vw - 32px) !important;
    bottom: calc(var(--mobile-nav-height) + var(--mobile-mini-player-height) + var(--safe-bottom) + 12px) !important;
    top: auto !important;
    border-radius: 14px !important;
    padding: 8px !important;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.85) !important;
  }

  .track-menu-item {
    min-height: 44px !important;
    font-size: 0.9rem !important;
    padding: 10px 14px !important;
  }
}

/* Fine-tune for very small mobile screens (<= 390px) */
@media (max-width: 390px) {
  .hero-title {
    font-size: 1.25rem;
  }

  .tracks-table .col-title-text {
    max-width: 145px !important;
  }

  .tracks-table .col-artist-text {
    max-width: 145px !important;
  }

  .player-track-title {
    max-width: 160px !important;
  }

  .player-track-subline {
    max-width: 160px !important;
  }

  .themes-grid {
    grid-template-columns: 1fr !important;
  }
}