@import url('https://fonts.googleapis.com/css2?family=Silkscreen:wght@400;700&display=swap');

  :root { --hint: #20fefe; --hint-dim: rgba(32,254,254,0.08); --hint-border: rgba(32,254,254,0.22); }
  [data-theme="dark"] {
    --bg: #0e0e0e; --surface: #161616; --surface2: #1f1f1f;
    --border: rgba(255,255,255,0.07); --border-md: rgba(255,255,255,0.13);
    --text: #f0f0f0; --text-strong: #ffffff; --muted: #777; --input-bg: #1f1f1f;
    --card-hover: #1c1c1c; --grid-bg: rgba(255,255,255,0.07);
    --tag-bg: #222; --tag-text: #999;
  }
  [data-theme="light"] {
    --bg: #f5f5f3; --surface: #ffffff; --surface2: #eeede9;
    --border: rgba(0,0,0,0.1); --border-md: rgba(0,0,0,0.18);
    --text: #111111; --text-strong: #000000; --muted: #555555; --input-bg: #f8f8f7;
    --card-hover: #fafaf9; --grid-bg: rgba(0,0,0,0.08);
    --tag-bg: #e4e3df; --tag-text: #333333;
    --hint: #0891b2; --hint-dim: rgba(8,145,178,0.1); --hint-border: rgba(8,145,178,0.3);
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  body { font-family: 'DM Sans', system-ui, sans-serif; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.65; min-height: 100vh; transition: background 0.25s, color 0.25s; }

  nav { background: var(--bg); border-bottom: 1px solid var(--border); padding: 0 2rem; display: flex; align-items: center; justify-content: space-between; height: 56px; position: sticky; top: 0; z-index: 100; transition: background 0.25s; }
  .nav-left { display: flex; align-items: center; gap: 1.5rem; }
  .nav-brand { font-family: 'Silkscreen', sans-serif; font-size: 1.15rem; color: var(--text-strong); cursor: pointer; letter-spacing: 0.04em; text-shadow: 0 1px 0 rgba(0,0,0,0.25); }
  .nav-links button { background: none; border: none; font-family: 'DM Sans', sans-serif; font-size: 14px; color: var(--muted); padding: 6px 14px; border-radius: 8px; cursor: pointer; transition: background 0.15s, color 0.15s; }
  .nav-links button:hover { background: var(--surface2); color: var(--text); }
  .nav-links button.active { color: var(--hint); background: var(--hint-dim); }

  .theme-toggle { display: flex; align-items: center; gap: 7px; cursor: pointer; user-select: none; }
  .theme-toggle:focus-visible { border-radius: 20px; }
  .theme-toggle .icon { font-size: 13px; color: var(--muted); }
  .track { width: 36px; height: 20px; background: var(--surface2); border-radius: 20px; position: relative; border: 1px solid var(--border-md); flex-shrink: 0; transition: background 0.2s; }
  .thumb { width: 14px; height: 14px; background: var(--hint); border-radius: 50%; position: absolute; top: 2px; left: 2px; transition: transform 0.2s; }
  [data-theme="light"] .thumb { transform: translateX(16px); }

  .page { display: none; max-width: 860px; margin: 0 auto; padding: 3rem 1.5rem 5rem; }
  .page.active { display: block; }

  .home-hero { padding: 3.5rem 0 2rem; border-bottom: 1px solid var(--border); margin-bottom: 2.5rem; }
  .home-hero h1 { font-family: 'Silkscreen', sans-serif; font-size: 2.8rem; line-height: 1.2; font-weight: 700; margin-bottom: 1rem; color: var(--text-strong); letter-spacing: 0.05em; text-shadow: 0 2px 0 rgba(0,0,0,0.3), 0 0 14px rgba(32,254,254,0.15); }
  .home-hero h1 em { font-style: italic; color: var(--hint); }
  .home-hero p { font-size: 1.05rem; color: var(--muted); max-width: 520px; line-height: 1.75; }

  .home-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-bottom: 2.5rem; background: var(--grid-bg); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
  .home-meta-card { background: var(--surface); padding: 1.4rem 1.5rem; }
  .home-meta-card.tall { grid-row: span 2; }
  .home-meta-card h3 { font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.6rem; font-weight: 500; }
  .home-meta-card p { font-size: 0.9rem; color: var(--text); line-height: 1.7; }

  .lang-badges { display: flex; flex-wrap: wrap; gap: 6px; }
  .badge { display: inline-block; background: var(--tag-bg); color: var(--tag-text); font-size: 11px; padding: 3px 10px; border-radius: 20px; font-weight: 500; border: 1px solid var(--border-md); }
  .badge.accent { background: var(--hint-dim); color: var(--hint); border-color: var(--hint-border); }

  .home-cta { display: flex; gap: 0.75rem; flex-wrap: wrap; }
  .btn-primary { background: var(--hint); color: #000; border: none; padding: 10px 22px; border-radius: 8px; font-family: 'DM Sans', sans-serif; font-size: 14px; font-weight: 500; cursor: pointer; transition: opacity 0.15s; }
  .btn-primary:hover { opacity: 0.82; }
  .btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border-md); padding: 10px 22px; border-radius: 8px; font-family: 'DM Sans', sans-serif; font-size: 14px; cursor: pointer; transition: background 0.15s; }
  .btn-outline:hover { background: var(--surface2); }

  button:focus-visible,
  [role="button"]:focus-visible,
  input:focus-visible,
  select:focus-visible,
  textarea:focus-visible,
  a:focus-visible {
    outline: 2px solid var(--hint);
    outline-offset: 2px;
  }
  
  .song-item .btn-outline { padding: 8px 16px; font-size: 13px; }

  .section-title { font-family: 'Silkscreen', sans-serif; font-size: 1.5rem; font-weight: 700; color: var(--text-strong); letter-spacing: 0.04em; text-shadow: 0 1px 0 rgba(0,0,0,0.25); }
  .section-sub { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.5rem; margin-top: 0.3rem; }

  .lib-controls { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1.75rem; }
  .lib-controls input, .lib-controls select { border: 1px solid var(--border-md); border-radius: 8px; padding: 9px 12px; font-family: 'DM Sans', sans-serif; font-size: 14px; background: var(--surface); color: var(--text); outline: none; transition: border-color 0.15s; }
  .lib-controls input { flex: 1; min-width: 200px; }
  .lib-controls input::placeholder { color: var(--muted); }
  .lib-controls input:focus, .lib-controls select:focus { border-color: var(--hint); }
  .lib-controls select option { background: var(--surface); color: var(--text); }
  .lib-count { font-size: 13px; color: var(--muted); margin-bottom: 1rem; }

  .song-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1px; background: var(--grid-bg); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
  .song-card { background: var(--surface); cursor: pointer; transition: background 0.15s; }
  .song-card:hover { background: var(--card-hover); }
  .song-card-thumb { width: 100%; aspect-ratio: 16/9; background: var(--surface2); display: flex; align-items: center; justify-content: center; overflow: hidden; border-bottom: 1px solid var(--border); }
  .song-card-thumb img { width: 100%; height: 100%; object-fit: cover; }
  .thumb-placeholder { font-size: 1.8rem; color: var(--muted); opacity: 0.3; }
  .song-card-body { padding: 1rem 1.1rem; }
  .song-card-title { font-weight: 500; font-size: 0.95rem; margin-bottom: 2px; color: var(--text-strong); }
  .song-card-artist { font-size: 13px; color: var(--muted); margin-bottom: 10px; }
  .song-card-tags { display: flex; gap: 5px; flex-wrap: wrap; align-items: center; }
  .status-badge { font-size: 11px; padding: 3px 9px; border-radius: 20px; font-weight: 500; border: 1px solid transparent; }
  .status-complete { background: var(--hint-dim); color: var(--hint); border-color: var(--hint-border); }
  .status-progress { background: var(--surface2); color: var(--muted); border-color: var(--border-md); }

  .request-form { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1.75rem 2rem; }
  .form-row { margin-bottom: 1rem; }
  .form-row label { display: block; font-size: 11px; font-weight: 500; color: var(--muted); margin-bottom: 5px; letter-spacing: 0.06em; text-transform: uppercase; }
  .form-row input, .form-row textarea, .form-row select { width: 100%; border: 1px solid var(--border-md); border-radius: 8px; padding: 9px 12px; font-family: 'DM Sans', sans-serif; font-size: 14px; background: var(--input-bg); color: var(--text); outline: none; transition: border-color 0.15s, box-shadow 0.15s; }
  .form-row input[type="file"] { padding: 8px 12px; cursor: pointer; background: var(--surface); }
  .form-row input[type="file"]::file-selector-button { appearance: none; -webkit-appearance: none; background: var(--hint); color: #000; border: none; padding: 8px 16px; border-radius: 6px; cursor: pointer; margin-right: 12px; font-weight: 500; font-family: 'DM Sans', sans-serif; font-size: 13px; }
  .form-row input[type="file"]::file-selector-button:hover { opacity: 0.82; }
  .form-row input::placeholder, .form-row textarea::placeholder { color: var(--muted); opacity: 0.6; }
  .form-row input:focus, .form-row textarea:focus, .form-row select:focus { border-color: var(--hint); box-shadow: 0 0 0 3px var(--hint-dim); }
  .form-row select option { background: var(--surface); color: var(--text); }
  .form-row textarea { min-height: 90px; resize: vertical; }
  .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

  .back-btn { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); cursor: pointer; background: none; border: none; font-family: 'DM Sans', sans-serif; padding: 0; margin-bottom: 2rem; transition: color 0.15s; }
  .back-btn:hover { color: var(--hint); }
  .lyrics-hero h1 { font-family: 'Silkscreen', sans-serif; font-size: 2.2rem; font-weight: 700; line-height: 1.25; margin-bottom: 0.4rem; color: var(--text-strong); letter-spacing: 0.04em; text-shadow: 0 2px 0 rgba(0,0,0,0.25), 0 0 12px rgba(32,254,254,0.12); }
  .lyrics-hero .artist { font-size: 1.05rem; color: var(--muted); margin-bottom: 1rem; }
  .lyrics-meta-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 1.5rem; }
  .lyrics-mv { border-radius: 12px; overflow: hidden; border: 1px solid var(--border); background: #111; aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center; margin-bottom: 0.75rem; max-height: 340px; }
  .lyrics-mv img { width: 100%; height: 100%; object-fit: cover; }
  .mv-placeholder { color: #333; font-size: 3rem; }
  .yt-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--hint); text-decoration: none; border: 1px solid var(--hint-border); background: var(--hint-dim); border-radius: 20px; padding: 5px 14px; font-weight: 500; margin-bottom: 2rem; transition: opacity 0.15s; }
  .yt-link:hover { opacity: 0.75; }
  .translator-note { background: var(--surface); border: 1px solid var(--border); border-left: 2px solid var(--hint); border-radius: 12px; padding: 1.25rem 1.5rem; margin-bottom: 2rem; }
  .translator-note h4 { font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--hint); margin-bottom: 0.5rem; font-weight: 500; }
  .translator-note p { font-size: 0.9rem; color: var(--muted); line-height: 1.75; }
  .col-toggle { display: flex; gap: 0.5rem; margin-bottom: 1rem; align-items: center; }
  .col-toggle span { font-size: 11px; color: var(--muted); margin-right: 4px; text-transform: uppercase; letter-spacing: 0.06em; }
  .toggle-btn { font-size: 12px; font-family: 'DM Sans', sans-serif; padding: 5px 14px; border-radius: 20px; border: 1px solid var(--border-md); background: var(--surface2); color: var(--muted); cursor: pointer; transition: all 0.15s; }
  .toggle-btn.on { background: var(--hint-dim); color: var(--hint); border-color: var(--hint-border); }
  .lyrics-columns { display: grid; gap: 2rem; }
  .lyrics-columns.both { grid-template-columns: 1fr 1fr; }
  .lyrics-columns.three { grid-template-columns: 1fr 1fr 1fr; }
  .lyrics-columns.one { grid-template-columns: 1fr; }
  .lyric-col h4 { font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 1rem; font-weight: 500; border-bottom: 1px solid var(--border); padding-bottom: 0.5rem; }
  .lyric-col p { font-size: 0.95rem; line-height: 2.1; color: var(--text); white-space: pre-line; }
  .song-meta-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1.25rem 1.5rem; margin-bottom: 2rem; }
  .song-meta-card h4 { font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 0.75rem; font-weight: 500; }
  .meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem 1.5rem; }
  .meta-item label { font-size: 11px; color: var(--muted); display: block; text-transform: uppercase; letter-spacing: 0.05em; }
  .meta-item span { font-size: 14px; color: var(--text-strong); }
  .divider { border: none; border-top: 1px solid var(--border); margin: 2.5rem 0; }
  .no-results { text-align: center; padding: 3rem 1rem; color: var(--muted); font-size: 0.95rem; }

  #admin-modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.7); z-index: 999; display: flex; align-items: center; justify-content: center; }
  #admin-modal[style*="display: none"] { display: none !important; }

  .btn-success { background: #4ade80; color: #000; border: none; padding: 10px 22px; border-radius: 8px; font-family: 'DM Sans', sans-serif; font-size: 14px; font-weight: 500; cursor: pointer; transition: opacity 0.15s; }
  .btn-success:hover { opacity: 0.82; }
  .btn-danger { background: #ef4444; color: #fff; border: none; padding: 8px 16px; border-radius: 6px; font-family: 'DM Sans', sans-serif; font-size: 13px; font-weight: 500; cursor: pointer; transition: opacity 0.15s; }
  .btn-danger:hover { opacity: 0.82; }
  .btn-secondary { background: var(--surface2); color: var(--text); border: 1px solid var(--border-md); padding: 10px 22px; border-radius: 8px; font-family: 'DM Sans', sans-serif; font-size: 14px; cursor: pointer; transition: background 0.15s; }
  .btn-secondary:hover { background: var(--surface2); border-color: var(--hint-border); }

  .success-message { background: var(--hint-dim); border: 1px solid var(--hint-border); color: var(--hint); padding: 1rem 1.5rem; border-radius: 8px; margin-bottom: 1.5rem; }

  .added-songs-list { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; margin-top: 2rem; }
  .song-item { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); gap: 1rem; }
  .song-item:last-child { border-bottom: none; }
  .song-item-info { flex: 1; min-width: 0; }
  .song-item-title { font-weight: 500; color: var(--text-strong); }
  .song-item-meta { font-size: 12px; color: var(--muted); margin-top: 4px; }
  .song-item > div:last-child { display: flex; gap: 0.5rem; flex-shrink: 0; }

  /* Color Picker */
  .color-picker-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 0.5rem; margin-top: 0.5rem; }
  .color-picker-grid input { display: none; }
  .color-picker-grid label { width: 100%; aspect-ratio: 1; border-radius: 8px; cursor: pointer; border: 3px solid transparent; transition: transform 0.15s, border-color 0.15s; }
  .color-picker-grid label:hover { transform: scale(1.08); }
  .color-picker-grid input:checked + label { border-color: #fff; box-shadow: 0 0 0 2px var(--text); }

  /* Enhanced Song Cards */
  .song-card { position: relative; border-radius: 8px; overflow: hidden; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
  .song-card:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(0,0,0,0.15); }
  .song-card-thumb { position: relative; transition: filter 0.3s; }
  .song-card:hover .song-card-thumb { filter: brightness(0.95); }
  .song-card-thumb.color-red { background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%); }
  .song-card-thumb.color-orange { background: linear-gradient(135deg, #f97316 0%, #ea580c 100%); }
  .song-card-thumb.color-yellow { background: linear-gradient(135deg, #eab308 0%, #ca8a04 100%); }
  .song-card-thumb.color-lime { background: linear-gradient(135deg, #84cc16 0%, #65a30d 100%); }
  .song-card-thumb.color-green { background: linear-gradient(135deg, #16a34a 0%, #15803d 100%); }
  .song-card-thumb.color-cyan { background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%); }
  .song-card-thumb.color-blue { background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%); }
  .song-card-thumb.color-indigo { background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%); }
  .song-card-thumb.color-purple { background: linear-gradient(135deg, #a855f7 0%, #9333ea 100%); }
  .song-card-thumb.color-fuchsia { background: linear-gradient(135deg, #ec4899 0%, #db2777 100%); }
  .song-card-thumb.color-brown { background: linear-gradient(135deg, #92400e 0%, #78350f 100%); }
  .song-card-thumb.color-stone { background: linear-gradient(135deg, #a8a29e 0%, #78716c 100%); }
  .song-card-thumb.color-slate { background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%); }
  .song-card-thumb.color-white { background: linear-gradient(135deg, #f5f5f5 0%, #e5e5e5 100%); }

  .song-card-favorite { position: absolute; top: 8px; right: 8px; font-size: 1.5rem; cursor: pointer; text-shadow: 0 1px 3px rgba(0,0,0,0.3); transition: transform 0.2s, filter 0.2s; z-index: 10; }
  .song-card-favorite:hover { transform: scale(1.15); filter: brightness(1.2); }
  .song-card-favorite:focus-visible { border-radius: 6px; }
  .song-card-favorite.inactive { opacity: 0.4; }
  .song-card-favorite.active { opacity: 1; text-shadow: 0 2px 4px rgba(255,215,0,0.4); }

  .song-card-preview { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(transparent, rgba(0,0,0,0.85)); color: #fff; padding: 1rem; font-size: 12px; line-height: 1.4; max-height: 0; overflow: hidden; transition: max-height 0.3s ease-out; }
  .song-card:hover .song-card-preview { max-height: 80px; }

  .progress-bar { width: 100%; height: 4px; background: rgba(255,255,255,0.1); border-radius: 2px; margin-bottom: 0.75rem; overflow: hidden; }
  .progress-bar-fill { height: 100%; background: linear-gradient(90deg, var(--hint), var(--hint-dim)); transition: width 0.3s ease; border-radius: 2px; }

  /* Filter/Sort Button States */
  #fav-filter-btn { transition: all 0.2s; }
  #fav-filter-btn:hover { background: var(--hint-dim) !important; }
  #fav-filter-btn.active { background: var(--hint) !important; color: #000 !important; font-weight: 600; }
  #cover-fav-filter-btn { transition: all 0.2s; }
  #cover-fav-filter-btn:hover { background: var(--hint-dim) !important; }
  #cover-fav-filter-btn.active { background: var(--hint) !important; color: #000 !important; font-weight: 600; }

  .silkscreen-regular {
    font-family: 'Silkscreen', sans-serif;
    font-weight: 400;
    font-style: normal;
  }

  .silkscreen-bold {
    font-family: 'Silkscreen', sans-serif;
    font-weight: 700;
    font-style: normal;
  }

  @media (max-width: 600px) {
    .home-meta, .form-grid, .meta-grid { grid-template-columns: 1fr; }
    .home-meta-card.tall { grid-row: auto; }
    .lyrics-columns.both, .lyrics-columns.three { grid-template-columns: 1fr; }
    .song-grid { grid-template-columns: 1fr; }
    .home-hero h1 { font-size: 2.1rem; }
    nav { padding: 0 1rem; }
    .song-item { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .song-item > div { width: 100%; }
    .song-item button { width: 100%; }
  }