@font-face { font-family: 'Doran'; src: url('../fonts/Doran-VF.woff2') format('woff2'); font-weight: 100 900; font-display: swap; }
  /* ============================================================
     پالت رنگی TM Trainer — آبی نیوی + طلایی
     الهام گرفته از لوگوی TM Trainer
     ============================================================ */
  :root {
    /* پس‌زمینه‌ها */
    --bg-page: #f0f4fa;
    --bg-page-2: #e2e8f0;
    --card: #ffffff;
    --card-elevated: #ffffff;

    /* متن */
    --text: #001F5F;
    --text-strong: #001029;
    --text-muted: #4a5b7d;
    --text-invert: #ffffff;

    /* حاشیه‌ها */
    --border: #c7d2e0;
    --border-strong: #64748b;
    --muted: #e2e8f0;
    --muted-strong: #cbd5e1;

    /* رنگ‌های اصلی — آبی نیوی + طلایی */
    --primary: #001F5F;        /* آبی نیوی پررنگ */
    --primary-hover: #001a4d;
    --primary-soft: #e8eef7;
    --accent: #FFD700;         /* طلایی روشن */
    --accent-hover: #e6c200;
    --accent-soft: #fff9e0;
    --success: #0d7377;        /* سبز-فیروزه‌ای هم‌خانواده */
    --success-soft: #e0f5f5;
    --info: #1e6091;           /* آبی هم‌خانواده */
    --info-soft: #e0ecf5;

    /* متغیرهای قدیمی برای سازگاری */
    --bg-1: #f0f4fa;
    --bg-2: #e2e8f0;
    --bg-3: #f0f4fa;
    --amber-50: #fff9e0;
    --amber-200: #FFD700;
    --amber-700: #8a7100;
    --emerald-50: #e0f5f5;
    --emerald-200: #a7f3d0;
    --emerald-700: #0d7377;
    --rose-500: #c41e3a;
    --rose-100: #ffe4e6;
    --rose-700: #8a1429;
    --slate-50: #f0f4fa;
    --slate-900: #001F5F;
    --slate-950: #001029;
    --primary-2: #FFD700;
    --on-primary: #ffffff;
    --accent-text: #6b5600;
    --accent-soft-text: #6b5600;
  }

  @media (prefers-color-scheme: dark) {
    :root:not(.light) {
      --bg-page: #000a1f;
      --bg-page-2: #001029;
      --card: #001F5F;
      --card-elevated: #002a7a;

      --text: #f1f5f9;
      --text-strong: #ffffff;
      --text-muted: #b0c4de;
      --text-invert: #001F5F;

      --border: #2a4a8a;
      --border-strong: #4a6aaa;
      --muted: #001a4d;
      --muted-strong: #002a7a;

      --primary: #FFD700;
      --primary-hover: #ffe44d;
      --primary-soft: #2a2400;
      --accent: #FFD700;
      --accent-hover: #ffe44d;
      --accent-soft: #2a2400;
      --success: #14b8a6;
      --success-soft: #0a2a26;
      --info: #4d9fff;
      --info-soft: #0a1a3a;

      --bg-1: #000a1f;
      --bg-2: #001029;
      --bg-3: #000a1f;
      --amber-50: #2a2400;
      --amber-200: #5a4a00;
      --amber-700: #FFD700;
      --emerald-50: #0a2a26;
      --emerald-200: #0d7377;
      --emerald-700: #14b8a6;
      --rose-500: #ef4444;
      --rose-100: #2a1418;
      --rose-700: #fca5a5;
      --slate-50: #001F5F;
      --slate-900: #001029;
      --slate-950: #000a1f;
      --primary-2: #FFD700;
      --on-primary: #001029;
      --accent-text: #FFD700;
    }
  }

  /* تم تیره با کلاس (برای toggle دستی) */
  .dark {
    --bg-page: #000a1f;
    --bg-page-2: #001029;
    --card: #001F5F;
    --card-elevated: #002a7a;
    --text: #f1f5f9;
    --text-strong: #ffffff;
    --text-muted: #b0c4de;
    --text-invert: #001F5F;
    --border: #2a4a8a;
    --border-strong: #4a6aaa;
    --muted: #001a4d;
    --muted-strong: #002a7a;
    --primary: #FFD700;
    --primary-hover: #ffe44d;
    --primary-soft: #2a2400;
    --accent: #FFD700;
    --accent-hover: #ffe44d;
    --accent-soft: #2a2400;
    --success: #14b8a6;
    --success-soft: #0a2a26;
    --info: #4d9fff;
    --info-soft: #0a1a3a;
    --on-primary: #001029;
    --accent-text: #FFD700;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html, body { height: 100%; }
  body {
    font-family: 'Doran', system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif;
    background: var(--bg-page);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
  }
  button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
  input, textarea, select { font-family: inherit; }
  a { color: var(--info); }

  .container { max-width: 1200px; margin: 0 auto; padding: 16px; }

  /* Header */
  header {
    background: var(--card);
    border-bottom: 2px solid var(--border-strong);
    padding: 12px 16px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  }
  .header-inner { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
  .logo-wrap { display: flex; align-items: center; gap: 12px; }
  .logo {
    width: 44px; height: 44px; border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 8px rgba(220, 38, 38, 0.3);
    color: white;
  }
  .logo svg { width: 22px; height: 22px; }
  .title-h1 { font-size: 19px; font-weight: 800; line-height: 1.2; color: var(--text-strong); }
  .title-sub { font-size: 12px; color: var(--text-muted); font-weight: 500; }
  .badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 5px 11px; border-radius: 999px;
    font-size: 11px; font-weight: 600;
    border: 1px solid var(--border-strong);
    background: var(--accent-soft);
    color: var(--text-strong);
  }
  select {
    padding: 8px 12px;
    border: 2px solid var(--border-strong);
    border-radius: 6px;
    background: var(--card);
    color: var(--text);
    font-size: 13px;
    font-weight: 500;
  }

  /* Layout */
  .grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
  @media (min-width: 1024px) { .grid { grid-template-columns: 2fr 1fr; } }

  /* Card */
  .card {
    background: var(--card);
    border-radius: 12px;
    border: 2px solid var(--border-strong);
    box-shadow: 0 2px 4px rgba(0,0,0,0.06);
    overflow: hidden;
  }
  .card-header { padding: 14px 16px 12px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--muted); }
  .card-title { font-size: 15px; font-weight: 700; display: flex; align-items: center; gap: 8px; color: var(--text-strong); }
  .card-body { padding: 0 16px 16px; }

  /* Notation panel — همیشه سفید، نت‌ها همیشه تیره */
  .notation-panel {
    width: 100%; min-height: 280px;
    background: #ffffff;
    border: 2px solid var(--border-strong);
    border-radius: 8px;
    padding: 16px;
    overflow-x: auto;
    direction: ltr;
    text-align: left;
  }
  .progress-bar { height: 10px; background: var(--muted-strong); border-radius: 999px; overflow: hidden; margin-top: 12px; border: 1px solid var(--border); }

  .progress-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--accent)); transition: width 0.1s; }

  /* Editor */
  .btn-ghost { width: 100%; padding: 10px 12px; border-radius: 6px; display: flex; justify-content: space-between; align-items: center; color: var(--text); font-size: 13px; font-weight: 600; }
  .btn-ghost:hover { background: var(--muted); }
  .editor-box {
    margin-top: 12px; padding: 14px;
    border-radius: 8px; border: 2px solid var(--border-strong);
    background: var(--muted);
  }
  .editor-box p { font-size: 11px; color: var(--text-muted); margin-bottom: 8px; line-height: 1.7; }
  textarea {
    width: 100%; direction: ltr;
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 12px; min-height: 200px;
    background: #ffffff; color: #0f172a;
    border: 2px solid var(--border-strong); border-radius: 6px;
    padding: 10px;
    font-weight: 500;
  }
  .btn-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; align-items: center; }

  /* Buttons */
  .btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 16px; border-radius: 4px; font-size: 13px; font-weight: 600; transition: all 0.15s; border: 2px solid transparent; }
  .btn-primary { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
  .btn-primary:hover { background: var(--primary-hover); }
  .btn-danger { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
  .btn-danger:hover { background: var(--primary-hover); }
  .btn-outline { border-color: var(--border-strong); background: var(--card); color: var(--text); font-weight: 600; border-radius: 4px; }
  .btn-outline:hover { background: var(--muted); }
  .btn-secondary { background: var(--muted-strong); color: var(--text-strong); border-color: var(--border-strong); font-weight: 600; }
  .btn-sm { padding: 7px 11px; font-size: 12px; border-radius: 3px; }
  .btn-lg { padding: 13px 16px; font-size: 14px; flex: 1; border-radius: 4px; }
  .btn svg { width: 16px; height: 16px; }

  /* Tempo */
  .tempo-display { font-size: 28px; font-weight: 800; color: var(--accent-text); font-variant-numeric: tabular-nums; }
  .slider-wrap { position: relative; padding: 10px 0; }
  input[type="range"] { width: 100%; height: 8px; background: var(--muted-strong); border-radius: 999px; appearance: none; -webkit-appearance: none; outline: none; cursor: pointer; border: 1px solid var(--border); }
  input[type="range"]::-webkit-slider-thumb { appearance: none; -webkit-appearance: none; width: 22px; height: 22px; background: var(--accent); border-radius: 50%; cursor: pointer; border: 2px solid var(--card); box-shadow: 0 2px 4px rgba(0,0,0,0.2); }
  input[type="range"]::-moz-range-thumb { width: 22px; height: 22px; background: var(--accent); border-radius: 50%; cursor: pointer; border: 2px solid var(--card); box-shadow: 0 2px 4px rgba(0,0,0,0.2); }

  .tempo-row { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--text-muted); margin-top: 6px; font-weight: 600; }
  .tempo-btn-group { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-top: 12px; }
  .reset-btn {
    background: var(--accent-soft); border: 2px solid var(--accent); color: var(--accent-text);
    padding: 6px 12px; border-radius: 999px; font-size: 11px; cursor: pointer;
    font-weight: 700;
    transition: all 0.15s;
  }
  .reset-btn:hover { background: var(--accent); color: #001029; transform: scale(1.05); }
  .reset-btn:active { transform: scale(0.95); }

  /* Switch */
  .switch { position: relative; display: inline-block; width: 50px; height: 28px; }
  .switch input { opacity: 0; width: 0; height: 0; }
  .slider-toggle {
    position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0;
    background: var(--muted-strong); border: 2px solid var(--border-strong);
    border-radius: 999px; transition: 0.2s;
  }
  .slider-toggle::before {
    position: absolute; content: ""; height: 20px; width: 20px; right: 2px; top: 2px;
    background: white; border-radius: 50%; transition: 0.2s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
  }
  .switch input:checked + .slider-toggle { background: var(--success); border-color: var(--success); }
  .switch input:checked + .slider-toggle::before { transform: translateX(-22px); }

  /* Metronome display */
  .metro-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 8px 0; flex-wrap: wrap; }
  .metro-label { display: flex; flex-direction: column; gap: 4px; }
  .metro-label-main { font-size: 13px; font-weight: 700; color: var(--success); }
  .metro-label-sub { font-size: 11px; color: var(--text-muted); font-weight: 500; }
  .metro-label-muted { font-size: 13px; color: var(--text-muted); font-weight: 600; }
  .metro-badge-off {
    display: inline-block; padding: 6px 12px; border-radius: 999px;
    background: var(--muted-strong); color: var(--text-muted); font-size: 11px; font-weight: 700;
    border: 1px solid var(--border);
  }

  /* Metronome dots — همیشه با کنتراست بالا */
  .metro-dots {
    display: inline-flex; align-items: center; gap: 8px;
    flex-wrap: wrap;
    padding: 8px 12px;
    background: var(--success-soft);
    border: 2px solid var(--success);
    border-radius: 8px;
    max-width: 100%;
  }
  .metro-dot {
    width: 14px;
    height: 14px;
    aspect-ratio: 1 / 1;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--muted-strong);
    border: 1px solid var(--border-strong);
    transition: transform 0.1s, background 0.1s;
    box-sizing: border-box;
  }
  .metro-dot.active-down { background: var(--primary); border-color: var(--primary); transform: scale(1.5); box-shadow: 0 0 8px var(--primary); }
  .metro-dot.active-up { background: var(--success); border-color: var(--success); transform: scale(1.5); box-shadow: 0 0 8px var(--success); }
  .metro-bpm-label { font-size: 11px; color: var(--success); margin-right: 6px; font-variant-numeric: tabular-nums; font-weight: 700; white-space: nowrap; flex-shrink: 0; }

  /* کنترل‌های مترونوم: checkbox sync و اسلایدر مستقل */
  .metro-controls-row {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 12px;
    padding: 10px;
    background: var(--muted);
    border-radius: 6px;
    border: 1px solid var(--border);
  }
  .metro-sync-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    user-select: none;
  }
  .metro-sync-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--success);
    cursor: pointer;
  }
  .metro-bpm-slider-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .metro-bpm-slider-wrap input[type="range"] {
    flex: 1;
    height: 6px;
    background: var(--muted-strong);
    border-radius: 999px;
    appearance: none;
    -webkit-appearance: none;
    outline: none;
    cursor: pointer;
    border: 1px solid var(--border);
  }
  .metro-bpm-slider-wrap input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--success);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  }
  .metro-bpm-slider-wrap input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--success);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  }
  .metro-bpm-display {
    min-width: 36px;
    text-align: center;
    font-size: 16px;
    font-weight: 700;
    color: var(--success);
    font-variant-numeric: tabular-nums;
  }

  /* compare stop button */
  .compare-stop-btn {
    background: var(--primary); color: var(--on-primary);
    border: none; padding: 6px 12px; border-radius: 4px;
    font-size: 11px; font-weight: 700;
    display: inline-flex; align-items: center; gap: 4px;
    cursor: pointer;
    flex-shrink: 0;
  }
  .compare-stop-btn:hover { background: var(--primary-hover); }
  /* دکمه‌های action در compare (pause/restart/stop) */
  .compare-action-btn {
    background: var(--card); color: var(--primary);
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
  }
  .compare-action-btn:hover {
    background: var(--primary); color: var(--on-primary);
    border-color: var(--primary);
  }
  .compare-start-btn {
    background: var(--primary); color: var(--on-primary);
    border: none; padding: 6px 12px; border-radius: 4px;
    font-size: 11px; font-weight: 700; cursor: pointer;
    flex-shrink: 0;
  }
  .compare-start-btn:hover { background: var(--primary-hover); }
  .compare-cancel-btn {
    background: var(--card); color: var(--text-muted);
    border: 1px solid var(--border-strong);
    padding: 6px 12px; border-radius: 4px;
    font-size: 11px; font-weight: 600; cursor: pointer;
    flex-shrink: 0;
  }
  .compare-cancel-btn:hover { background: var(--muted); }

  /* Volume */
  .vol-label { font-size: 12px; color: var(--text-muted); display: block; margin-bottom: 8px; font-weight: 600; }

  /* Tabs */
  .tabs-list { display: grid; grid-template-columns: repeat(3, 1fr); background: var(--muted); padding: 4px; border-radius: 8px; gap: 2px; border: 1px solid var(--border); }
  .tab-trigger { padding: 9px 12px; border-radius: 6px; font-size: 13px; font-weight: 600; color: var(--text-muted); transition: all 0.15s; }
  .tab-trigger.active { background: var(--card); color: var(--text-strong); box-shadow: 0 2px 4px rgba(0,0,0,0.1); border: 1px solid var(--border); }
  .tab-content { margin-top: 12px; display: none; }
  .tab-content.active { display: block; }
  .tab-card-body { padding: 16px; font-size: 12px; line-height: 1.7; }
  .tab-card-body h4 { font-weight: 700; margin-bottom: 8px; color: var(--text-strong); }
  .tab-card-body ul { padding-right: 18px; margin-top: 4px; }
  .tab-card-body li { margin-bottom: 4px; }
  .tab-card-body pre { background: var(--muted); padding: 12px; border-radius: 6px; font-size: 10px; overflow-x: auto; direction: ltr; text-align: left; margin: 8px 0; border: 1px solid var(--border); }
  .tab-card-body code { background: var(--muted); padding: 2px 6px; border-radius: 4px; font-size: 11px; direction: ltr; display: inline-block; border: 1px solid var(--border); }
  .tab-card-body a { color: var(--info); text-decoration: underline; }
  .tab-card-body .notice { background: var(--accent-soft); border: 2px solid var(--accent); border-radius: 6px; padding: 12px; margin-top: 12px; }
  .tab-card-body .notice h5 { color: var(--accent-text); margin-bottom: 4px; font-size: 12px; font-weight: 700; }

  /* Notice card */
  .notice-card {
    background: var(--accent-soft);
    border: 2px solid var(--accent);
    border-radius: 12px;
    padding: 16px;
    display: flex; gap: 12px;
  }
  .notice-card svg { color: var(--accent-text); flex-shrink: 0; width: 20px; height: 20px; }
  .notice-card h4 { color: var(--accent-text); margin-bottom: 4px; font-size: 13px; font-weight: 700; }
  .notice-card p { font-size: 11px; color: var(--text); line-height: 1.7; }
  .notice-card strong { color: var(--text-strong); font-weight: 700; }

  /* Status messages */
  .status-msg {
    font-size: 12px; padding: 10px 12px; border-radius: 6px; margin-bottom: 8px;
    font-weight: 600;
    border-width: 2px;
    border-style: solid;
  }
  .status-success { background: var(--success-soft); color: var(--success); border-color: var(--success); }
  .status-error { background: var(--primary-soft); color: var(--primary); border-color: var(--primary); }
  .status-info { background: var(--accent-soft); color: var(--accent-text); border-color: var(--accent); }

  /* Footer text */
  .footer-text { text-align: center; font-size: 11px; color: var(--text-muted); padding: 12px 0; line-height: 1.7; font-weight: 500; }

  /* abcjs: حامل همیشه روی زمینهٔ سفید، بدون !important */
  .abcjs-container { direction: ltr; text-align: left; }
  .abcjs-container svg { background: #fff; display: block; }
  .abcjs-container svg text { font-family: 'Doran', sans-serif; }
  .abcjs-container svg path.abcjs-highlight, .abcjs-container svg .abcjs-highlight { fill: #d97706; stroke: #d97706; }
  .staff-cursor { position: absolute; width: 3px; background: rgba(217,119,6,.55); border-radius: 2px; pointer-events: none; display: none; z-index: 2; }

  /* Hidden utility */
  .hidden { display: none !important; }

  /* Pill for status */
  .status-pill {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 700;
    border: 1px solid var(--success);
    background: var(--success-soft);
    color: var(--success);
  }
  .status-pill.playing { animation: pulse 1.5s infinite; }
  @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }

  hr { border: 0; border-top: 1px solid var(--border); margin: 12px 0; }
  kbd { padding: 4px 8px; background: var(--muted); border-radius: 4px; border: 1px solid var(--border-strong); font-size: 10px; font-family: monospace; font-weight: 600; }

  /* ===== Recording Card ===== */
  .record-btn-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-bottom: 12px; }
  .btn-record {
    background: var(--primary); color: var(--on-primary); border: 2px solid var(--primary);
    padding: 12px 16px; border-radius: 6px; font-size: 14px; font-weight: 700;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    transition: all 0.15s;
  }
  .btn-record:hover { background: var(--primary-hover); }
  .btn-record.recording { background: #7f1d1d; border-color: #7f1d1d; animation: rec-pulse 1.2s infinite; }
  @keyframes rec-pulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.7); } 50% { box-shadow: 0 0 0 10px rgba(220, 38, 38, 0); } }
  .btn-record:disabled { opacity: 0.5; cursor: not-allowed; }
  .btn-stop-rec {
    background: var(--text-strong); color: white; border: 2px solid var(--text-strong);
    padding: 12px 16px; border-radius: 6px; font-size: 14px; font-weight: 700;
    display: flex; align-items: center; justify-content: center; gap: 6px;
  }
  .rec-timer {
    font-size: 22px; font-weight: 800; color: var(--primary);
    font-variant-numeric: tabular-nums; text-align: center;
    padding: 8px; background: var(--primary-soft); border: 2px solid var(--primary);
    border-radius: 6px; margin-bottom: 12px;
  }
  .rec-list { display: flex; flex-direction: column; gap: 8px; max-height: 300px; overflow-y: auto; }
  .rec-item {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 10px; background: var(--muted); border: 1px solid var(--border);
    border-radius: 6px;
  }
  .rec-item-info { flex: 1; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
  .rec-item-name { font-size: 12px; font-weight: 600; color: var(--text-strong); }
  .rec-item-meta { font-size: 10px; color: var(--text-muted); }
  .rec-item audio { height: 32px; max-width: 100%; }
  .rec-item-actions { display: flex; gap: 4px; }

  /* اسلایدر موقعیت پخش ضبط */
  .rec-position-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    margin-top: 8px;
    padding: 6px 8px;
    background: var(--muted);
    border-radius: 4px;
    border: 1px solid var(--border);
  }
  .rec-position-slider {
    flex: 1;
    height: 6px;
    background: var(--muted-strong);
    border-radius: 999px;
    appearance: none;
    -webkit-appearance: none;
    outline: none;
    cursor: pointer;
    border: 1px solid var(--border);
  }
  .rec-position-slider::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  }
  .rec-position-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  }
  .rec-position-display {
    font-size: 10px;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
    min-width: 90px;
    text-align: center;
  }
  .rec-restart-btn {
    background: var(--card);
    color: var(--primary);
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
  }
  .rec-restart-btn:hover {
    background: var(--primary);
    color: var(--on-primary);
    border-color: var(--primary);
  }
  .rec-stop-btn-icon {
    background: var(--card);
    color: var(--rose-500);
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
  }
  .rec-stop-btn-icon:hover {
    background: var(--rose-500);
    color: white;
    border-color: var(--rose-500);
  }
  /* حالت‌های دکمه play در rec-item */
  .rec-icon-btn.playing {
    background: var(--primary);
    color: var(--on-primary);
    border-color: var(--primary);
  }
  .rec-icon-btn.paused {
    background: var(--accent);
    color: var(--text-strong);
    border-color: var(--accent);
  }
  .rec-icon-btn {
    width: 32px; height: 32px; border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border-strong); background: var(--card); color: var(--text);
    cursor: pointer; transition: all 0.15s;
  }
  .rec-icon-btn:hover { background: var(--muted-strong); }
  .rec-icon-btn.danger:hover { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
  .rec-icon-btn svg { width: 14px; height: 14px; }
  .rec-empty { text-align: center; padding: 16px; color: var(--text-muted); font-size: 12px; font-style: italic; }
  .compare-status {
    padding: 10px 12px; border-radius: 6px; font-size: 12px; font-weight: 600;
    background: var(--accent-soft); border: 2px solid var(--accent); color: var(--accent-text);
    margin-bottom: 12px; display: none;
  }
  .compare-status.show { display: block; }
  .compare-status.playing-original { background: var(--info-soft, #dbeafe); border-color: var(--info); color: var(--info); }
  .compare-status.playing-recording { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
  .compare-btn {
    width: 100%; padding: 10px; border-radius: 6px;
    background: var(--accent-soft); border: 2px solid var(--accent); color: var(--accent-text);
    font-size: 13px; font-weight: 700; cursor: pointer; transition: all 0.15s;
    display: flex; align-items: center; justify-content: center; gap: 6px;
    margin-top: 8px;
  }
  .compare-btn:hover { background: var(--accent); color: white; }
  .compare-btn:disabled { opacity: 0.5; cursor: not-allowed; }

  /* ===== Waveform Display ===== */
  .waveform-container {
    background: var(--slate-900, #0f172a);
    border: 2px solid var(--border-strong);
    border-radius: 8px;
    padding: 8px;
    margin-bottom: 12px;
    position: relative;
    overflow: hidden;
    min-height: 80px;
  }
  .waveform-container.light { background: #ffffff; }
  .waveform-canvas {
    width: 100%;
    height: 70px;
    display: block;
  }
  .waveform-empty {
    text-align: center;
    color: var(--text-muted);
    font-size: 11px;
    padding: 20px;
    font-style: italic;
  }
  .waveform-playhead {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary);
    pointer-events: none;
    transition: left 0.05s linear;
    display: none;
  }

  /* ===== Practice Mode (ضبط همزمان با پخش اصلی) ===== */
  .practice-mode-card {
    border: 2px solid var(--accent);
    background: var(--accent-soft);
    border-radius: 12px;
    padding: 14px;
    margin-top: 12px;
  }
  .practice-mode-card h4 {
    font-size: 13px; font-weight: 700;
    color: var(--accent-text);
    margin-bottom: 8px;
    display: flex; align-items: center; gap: 6px;
  }
  .practice-mode-desc {
    font-size: 11px; color: var(--text-muted);
    margin-bottom: 10px; line-height: 1.6;
  }
  .btn-practice {
    width: 100%;
    background: var(--accent); color: white;
    border: 2px solid var(--accent);
    padding: 12px; border-radius: 6px;
    font-size: 13px; font-weight: 700;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    cursor: pointer; transition: all 0.15s;
  }
  .btn-practice:hover { background: #c2410c; border-color: #c2410c; }
  .btn-practice:disabled { opacity: 0.5; cursor: not-allowed; }
  .btn-practice.recording { background: #7c2d12; border-color: #7c2d12; animation: rec-pulse 1.2s infinite; }
  .practice-timer-row {
    display: flex; gap: 8px; margin-bottom: 8px;
  }
  .practice-timer-box {
    flex: 1;
    padding: 6px 10px;
    background: var(--card);
    border: 1px solid var(--border-strong);
    border-radius: 6px;
    font-size: 11px;
    text-align: center;
  }
  .practice-timer-box span {
    display: block; font-size: 16px; font-weight: 700;
    color: var(--text-strong);
    font-variant-numeric: tabular-nums;
  }
  .practice-timer-box.recording-mode span { color: var(--primary); }
  .practice-timer-box.playing-mode span { color: var(--info); }

  /* ===== نمایش تابلتور (همان ظاهر پخش‌کنندهٔ تب) ===== */
  .col { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
  .card-meta { display: flex; gap: 8px; align-items: center; font-size: 11px; color: var(--text-muted); }
  .tab-view { background: #0c0f15; border: 2px solid #232a3b; border-radius: 10px; padding: 10px; margin-bottom: 10px; direction: ltr; }
  .tv-info { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 8px; }
  .tv-box { background: #151a25; border: 1px solid #232a3b; border-radius: 8px; padding: 6px 10px; display: flex; flex-direction: column; align-items: center; min-width: 0; }
  .tv-cap { font-size: 10px; color: #8892a6; direction: rtl; }
  .tv-val { font-size: 20px; font-weight: 800; color: #ffb02e; font-family: ui-monospace, Menlo, Consolas, monospace; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
  .tv-val.tv-pos { color: #e8ecf5; font-size: 15px; }
  .tv-val.tv-next { color: #4fd1c5; }
  .tab-canvas, .fret-canvas { display: block; width: 100%; border-radius: 8px; }
  .tab-canvas { touch-action: pan-y; cursor: grab; }
  .tab-canvas.dragging { cursor: grabbing; }
  .fret-canvas { margin-top: 8px; }
  .notation-panel { position: relative; }
  .tab-view + .notation-panel { margin-bottom: 10px; }
  .seek { width: 100%; margin-top: 10px; }
  .opt-row { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; margin-top: 10px; font-size: 12px; color: var(--text); }
  .opt-row label { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }
  .engine-status { font-size: 11px; color: var(--text-muted); margin-right: auto; }
  .abc-warnings { margin-top: 8px; font-size: 11.5px; line-height: 1.8; color: var(--text); background: var(--accent-soft); border: 1px solid var(--accent); border-radius: 6px; padding: 8px 10px; }
  .overlay-full { position: fixed; inset: 0; z-index: 1000; background: rgba(0,10,31,.92); display: flex; flex-direction: column; align-items: center; justify-content: center; }
  .install-banner { position: fixed; bottom: 16px; inset-inline: 16px; z-index: 900; display: flex; gap: 8px; align-items: center; justify-content: space-between; background: var(--card); color: var(--text); border: 2px solid var(--primary); border-radius: 10px; padding: 10px 14px; box-shadow: 0 6px 20px rgba(0,0,0,.25); font-size: 13px; }
  .install-btn { background: var(--primary); color: var(--on-primary); border-radius: 6px; padding: 6px 14px; font-weight: 700; }
  .install-close { font-size: 20px; padding: 0 8px; color: var(--text-muted); }
  .env-warning { position: fixed; top: 0; inset-inline: 0; z-index: 950; background: #fef3c7; color: #78350f; padding: 10px 14px; font-size: 12px; line-height: 1.8; border-bottom: 2px solid #f59e0b; }
  .env-warning button { margin-inline-start: 8px; text-decoration: underline; }
  button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
  @media (max-width: 520px) { .tv-val { font-size: 16px; } }

  .seek, .progress-bar { direction: ltr; }
  .progress-fill { transition: none; }
  pre { direction: ltr; text-align: left; white-space: pre-wrap; overflow-x: auto; }

  /* ===== حامل: کاغذ و جوهر وابسته به تم ===== */
  :root { --staff-paper: #ffffff; --staff-ink: #0f172a; --staff-chord: #b45309; --shadow-sm: 0 1px 2px rgba(0,16,41,.06), 0 4px 14px rgba(0,16,41,.07); --shadow-md: 0 2px 4px rgba(0,16,41,.08), 0 12px 32px rgba(0,16,41,.12); }
  .dark { --staff-paper: #0a1736; --staff-ink: #eef2fb; --staff-chord: #ffd166; --shadow-sm: 0 1px 2px rgba(0,0,0,.4), 0 4px 14px rgba(0,0,0,.35); --shadow-md: 0 2px 4px rgba(0,0,0,.5), 0 12px 32px rgba(0,0,0,.45); }
  @media (prefers-color-scheme: dark) { :root:not(.light) { --staff-paper: #0a1736; --staff-ink: #eef2fb; --staff-chord: #ffd166; --shadow-sm: 0 1px 2px rgba(0,0,0,.4), 0 4px 14px rgba(0,0,0,.35); --shadow-md: 0 2px 4px rgba(0,0,0,.5), 0 12px 32px rgba(0,0,0,.45); } }
  .notation-panel { background: var(--staff-paper); color: var(--staff-ink); border: 1px solid var(--border); border-radius: 12px; }
  .abcjs-container svg { background: transparent; color: var(--staff-ink); }
  .abcjs-container svg text { fill: currentColor; }
  .abcjs-container svg .abcjs-chord { fill: var(--staff-chord); }

  /* ===== بخش‌های جمع‌شونده ===== */
  .sec { margin-bottom: 12px; }
  .sec-head { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 9px 12px; margin-bottom: 8px; border-radius: 10px; background: var(--muted); border: 1px solid var(--border); color: var(--text-strong); font-size: 13px; font-weight: 700; transition: background .15s; }
  .sec-head:hover { background: var(--muted-strong); }
  .sec-title { display: inline-flex; align-items: center; gap: 8px; }
  .sec-dot { width: 8px; height: 8px; border-radius: 50%; background: #ffb02e; box-shadow: 0 0 0 3px rgba(255,176,46,.25); }
  .sec-dot-2 { background: #4fd1c5; box-shadow: 0 0 0 3px rgba(79,209,197,.25); }
  .sec-chev { transition: transform .25s ease; color: var(--text-muted); }
  .sec.collapsed .sec-chev { transform: rotate(90deg); }
  .sec.collapsed .sec-head { margin-bottom: 0; }
  .sec-body { animation: sec-in .22s ease; }
  .sec.collapsed .sec-body { display: none; }
  @keyframes sec-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

  @media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }


/* =====================================================================
   طراحی نسخهٔ ۶٫۳ — پالت و شکل مطابق Design System جدید
   ===================================================================== */
:root {
  --bg-page:#eef1f7; --bg-page-2:#e6eaf3; --card:#ffffff; --card-elevated:#ffffff;
  --text:#0b1730; --text-strong:#0b1730; --text-muted:#6c7c96; --text-invert:#ffffff;
  --border:#e0e5f0; --border-strong:#ccd4e4; --muted:#f1f4fa; --muted-strong:#e3e8f2;
  --primary:#021e4e; --primary-hover:#0a3475; --primary-soft:#e8eefa;
  --accent:#f5c518; --accent-hover:#e0b000; --accent-soft:#fff8dd;
  --success:#0f766e; --success-soft:#e3f5f2; --info:#1e5fa8; --info-soft:#e0ecf5;
  --on-primary:#ffffff; --accent-text:#7a5d00; --red:#cf2e2e; --red-soft:#fdeaea;
  --hud-bg: linear-gradient(150deg,#062a63 0%,#02183c 55%,#010e26 100%); --hud-ink:#eaf1ff; --hud-muted:#9db4d8;
  --dock-h: 78px;
}
@media (prefers-color-scheme: dark) { :root:not(.light) {
  --bg-page:#060a13; --bg-page-2:#0a1120; --card:#0d1526; --card-elevated:#121c31;
  --text:#e9effb; --text-strong:#ffffff; --text-muted:#7c8aa5; --text-invert:#1d1700;
  --border:#1d2942; --border-strong:#2a3a5a; --muted:#121c31; --muted-strong:#18233b;
  --primary:#f5c518; --primary-hover:#ffd94d; --primary-soft:#241d00;
  --accent:#f5c518; --accent-hover:#ffd94d; --accent-soft:#241d00;
  --success:#2dd4bf; --success-soft:#062a26; --info:#6aa8ff; --info-soft:#0a1a3a;
  --on-primary:#1d1700; --accent-text:#f5c518; --red:#f87171; --red-soft:#2b1111;
  --hud-bg: linear-gradient(150deg,#16233d 0%,#0b1425 60%,#070d18 100%); --hud-ink:#eef4ff; --hud-muted:#93a6c4;
} }
.dark {
  --bg-page:#060a13; --bg-page-2:#0a1120; --card:#0d1526; --card-elevated:#121c31;
  --text:#e9effb; --text-strong:#ffffff; --text-muted:#7c8aa5; --text-invert:#1d1700;
  --border:#1d2942; --border-strong:#2a3a5a; --muted:#121c31; --muted-strong:#18233b;
  --primary:#f5c518; --primary-hover:#ffd94d; --primary-soft:#241d00;
  --accent:#f5c518; --accent-hover:#ffd94d; --accent-soft:#241d00;
  --success:#2dd4bf; --success-soft:#062a26; --info:#6aa8ff; --info-soft:#0a1a3a;
  --on-primary:#1d1700; --accent-text:#f5c518; --red:#f87171; --red-soft:#2b1111;
  --hud-bg: linear-gradient(150deg,#16233d 0%,#0b1425 60%,#070d18 100%); --hud-ink:#eef4ff; --hud-muted:#93a6c4;
}

body {
  padding-bottom: calc(var(--dock-h) + 18px + env(safe-area-inset-bottom, 0px));
  background-image:
    radial-gradient(1100px 520px at 88% -10%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 62%),
    radial-gradient(900px 460px at 4% 0%, color-mix(in srgb, var(--primary) 8%, transparent), transparent 60%);
  background-attachment: fixed; -webkit-font-smoothing: antialiased; overscroll-behavior-y: none;
}
button, a, select, input, textarea, label { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; border:0; }

/* --- App bar --- */
header.appbar { position: sticky; top: 0; z-index: 60; padding: 0 clamp(12px,3vw,26px); height: 62px; display: flex; align-items: center;
  background: color-mix(in srgb, var(--card) 82%, transparent); backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--border); box-shadow: none; }
.header-inner { width: 100%; flex-wrap: nowrap; gap: 10px; }
.logo { width: 38px; height: 38px; border-radius: 11px; overflow: hidden; background: #021e4e; box-shadow: 0 3px 10px -2px rgba(2,30,78,.45), inset 0 0 0 1px rgba(255,255,255,.08); }
.logo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.title-h1 { font-size: 15px; font-weight: 800; letter-spacing: -.2px; line-height: 1.15; }
.title-h1 span { color: var(--accent); }
.title-sub { font-size: 10.5px; }
.appbar-tools { display: flex; align-items: center; gap: 8px; flex-wrap: nowrap; }
.field { position: relative; display: inline-flex; align-items: center; }
.field select { appearance: none; -webkit-appearance: none; height: 36px; padding: 0 12px 0 30px; border-radius: 10px; border: 1px solid var(--border-strong);
  background: var(--card); color: var(--text); font-size: 12.5px; font-weight: 600; cursor: pointer; max-width: 200px; text-overflow: ellipsis; transition: border-color .15s, box-shadow .15s; }
.field select:hover { border-color: color-mix(in srgb, var(--primary) 35%, var(--border-strong)); }
.field select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 16%, transparent); }
.field::after { content: ""; position: absolute; left: 11px; top: 50%; width: 7px; height: 7px; pointer-events: none;
  border-left: 1.8px solid var(--text-muted); border-bottom: 1.8px solid var(--text-muted); transform: translateY(-70%) rotate(-45deg); }
.icon-btn { width: 36px; height: 36px; flex: none; display: inline-flex; align-items: center; justify-content: center; border-radius: 10px;
  border: 1px solid var(--border-strong); background: var(--card); color: var(--text); font-size: 15px; transition: background .15s, transform .12s; }
.icon-btn:hover { background: var(--muted); } .icon-btn:active { transform: scale(.95); }
.badge { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
@media (max-width: 900px) { .hide-sm { display: none !important; } .header-inner { flex-wrap: wrap; } header.appbar { height: auto; padding-block: 8px; } .appbar-tools { flex-wrap: wrap; } }

/* --- Layout --- */
.container { max-width: 1240px; padding: 18px clamp(12px,3vw,26px) 8px; }
.grid { gap: 16px; }
@media (min-width: 1060px) { .grid { grid-template-columns: minmax(0,1fr) 352px; align-items: start; gap: 18px; } }

/* --- Cards --- */
.card { background: linear-gradient(180deg, color-mix(in srgb, var(--card) 92%, var(--muted)) 0%, var(--card) 46%); border: 1px solid var(--border); border-radius: 20px;
  box-shadow: 0 1px 2px rgba(11,23,48,.06), inset 0 1px 0 rgba(255,255,255,.6); transition: box-shadow .3s, border-color .3s; }
.dark .card, :root:not(.light) .card { box-shadow: 0 1px 2px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.05); }
@media (hover: hover) { .card:hover { box-shadow: 0 6px 18px -6px rgba(11,23,48,.16), 0 2px 6px -2px rgba(11,23,48,.08); } }
.card-header { padding: 12px 16px; border-bottom: 1px solid color-mix(in srgb, var(--border) 60%, transparent); background: linear-gradient(180deg, color-mix(in srgb, var(--muted) 62%, transparent), transparent); }
.card-body { padding: 16px; }
.card-title { font-size: 13.5px; font-weight: 700; gap: 10px; }
.card-title svg { box-sizing: content-box; width: 15px; height: 15px; padding: 7.5px; border-radius: 10px; background: var(--primary-soft); color: var(--primary); fill: none;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, currentColor 12%, transparent); }
.card-title svg[fill="var(--primary)"] { fill: currentColor; }
.dark .card-title svg, :root:not(.light) .card-title svg { background: color-mix(in srgb, var(--accent) 16%, transparent); }
.notice-card { border-radius: 16px; }

/* --- HUD (تب) --- */
.tab-view { background: var(--hud-bg); border: 1px solid color-mix(in srgb, var(--primary) 30%, transparent); border-radius: 18px; position: relative; overflow: hidden;
  box-shadow: 0 6px 18px -6px rgba(11,23,48,.25), inset 0 1px 0 rgba(255,255,255,.07); padding: 12px 10px 10px; }
.dark .tab-view, :root:not(.light) .tab-view { border-color: #24334f; }
.tab-view::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(600px 180px at 80% -30%, rgba(245,197,24,.2), transparent 70%), radial-gradient(400px 200px at 10% 120%, rgba(90,160,255,.16), transparent 70%); }
.tab-view > * { position: relative; }
.tv-box { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 12px; }
.tv-cap { color: var(--hud-muted); }
.tv-val { color: var(--accent); text-shadow: 0 2px 24px rgba(245,197,24,.35); }
.tv-val.tv-pos { color: var(--hud-ink); text-shadow: none; }
.tv-val.tv-next { color: #5eead4; text-shadow: none; }
.sec-head { background: var(--muted); border: 1px solid var(--border); }
.sec-head:hover { background: var(--muted-strong); }
.sec-dot { background: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }

/* --- Buttons --- */
.btn { height: 38px; padding: 0 14px; border-radius: 10px; font-size: 12.5px; font-weight: 700; border: 1px solid transparent; transition: background .15s, color .15s, transform .1s; }
.btn-sm { height: 30px; padding: 0 10px; font-size: 11.5px; border-radius: 8px; }
.btn-primary { background: var(--primary); color: var(--on-primary); box-shadow: 0 1px 0 rgba(255,255,255,.12) inset; border-color: transparent; }
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 1px 0 rgba(255,255,255,.12) inset; transform: none; }
.btn-outline { background: var(--card); border: 1px solid var(--border-strong); color: var(--text); border-radius: 10px; }
.btn-outline:hover { background: var(--muted); }
.btn-ghost { border-radius: 10px; }
.btn-lg { height: 44px; border-radius: 12px; }
.tab-trigger { border-radius: 9px; }
.tabs-list { background: var(--muted-strong); border: 0; border-radius: 12px; }
.tab-trigger.active { background: var(--card); color: var(--text-strong); border: 0; box-shadow: 0 1px 2px rgba(11,23,48,.12); }

/* --- Inputs --- */
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 24px; background: transparent; border: 0; border-radius: 0; cursor: pointer; direction: ltr; --p: 50%; }
input[type="range"]::-webkit-slider-runnable-track { height: 6px; border-radius: 999px; background: linear-gradient(to right, var(--primary) 0 var(--p), color-mix(in srgb, var(--text-muted) 26%, transparent) var(--p) 100%); }
input[type="range"]::-moz-range-track { height: 6px; border-radius: 999px; background: color-mix(in srgb, var(--text-muted) 26%, transparent); }
input[type="range"]::-moz-range-progress { height: 6px; border-radius: 999px; background: var(--primary); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 18px; height: 18px; margin-top: -6px; border-radius: 50%; background: #fff; border: 2px solid var(--primary); box-shadow: 0 1px 4px rgba(0,0,0,.25); transition: transform .12s; }
input[type="range"]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 2px solid var(--primary); box-shadow: 0 1px 4px rgba(0,0,0,.25); }
input[type="range"]:hover::-webkit-slider-thumb { transform: scale(1.08); }
.seek { margin-top: 10px; }
textarea { border-radius: 12px; background: var(--muted); color: var(--text); border: 1px solid var(--border-strong); }
.editor-box { border-radius: 14px; border: 1px solid var(--border); background: var(--muted); }
.switch .slider-toggle { border-radius: 999px; }
.tempo-display { color: var(--text-strong); font-size: 38px; font-weight: 800; letter-spacing: -1px; }
.reset-btn { color: var(--primary); background: var(--primary-soft); border: 0; border-radius: 999px; }
.reset-btn:hover { background: var(--primary); color: var(--on-primary); transform: none; }
.dark .reset-btn, :root:not(.light) .reset-btn { color: var(--accent); background: color-mix(in srgb, var(--accent) 18%, transparent); }
.tempo-btn-group .btn-outline { background: var(--muted); border-color: var(--border-strong); }
.metro-dot.active-down { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 26%, transparent); }
.metro-dot.active-up { background: var(--success); border-color: var(--success); }

/* --- Record --- */
.btn-record { background: linear-gradient(180deg,#e04a4a,#cf2e2e 55%,#b91f1f); color: #fff; border: 0; border-radius: 12px; box-shadow: 0 6px 16px -9px rgba(207,46,46,.85), inset 0 1px 0 rgba(255,255,255,.22); }
.btn-record:hover { filter: brightness(1.05); background: linear-gradient(180deg,#e04a4a,#cf2e2e 55%,#b91f1f); }
.btn-practice { background: linear-gradient(180deg,#ffd94d,#f5c518 60%,#e0b000); color: #1d1700; border-radius: 9px; box-shadow: inset 0 1px 0 rgba(255,255,255,.35); }
.practice-mode-card { border-radius: 14px; background: color-mix(in srgb, var(--accent) 8%, var(--card)); border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--border)); }
.waveform-container { border-radius: 12px; border: 1px solid var(--border); }
.rec-item { border-radius: 10px; border: 1px solid var(--border); background: var(--muted); }

/* --- Dock (کلید پخش ثابت پایین) --- */
.dock { position: fixed; inset-inline: 0; bottom: 0; z-index: 70; height: calc(var(--dock-h) + env(safe-area-inset-bottom, 0px)); padding-bottom: env(safe-area-inset-bottom, 0px);
  display: flex; align-items: center; background: color-mix(in srgb, var(--card) 88%, transparent); backdrop-filter: saturate(1.5) blur(18px); -webkit-backdrop-filter: saturate(1.5) blur(18px);
  border-top: 1px solid var(--border); box-shadow: 0 -8px 30px -18px rgba(11,23,48,.35); }
.dock-in { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 clamp(12px,3vw,26px); display: flex; align-items: center; gap: 10px; }
.play-btn { width: 52px; height: 52px; flex: none; border-radius: 50%; display: grid; place-items: center; background: var(--primary); color: var(--on-primary);
  box-shadow: 0 8px 20px -8px color-mix(in srgb, var(--primary) 80%, transparent); transition: transform .12s, background .15s; }
.play-btn:hover { background: var(--primary-hover); } .play-btn:active { transform: scale(.95); }
.play-btn svg { width: 21px; height: 21px; }
.play-btn.playing { background: var(--red); color: #fff; box-shadow: 0 8px 20px -8px color-mix(in srgb, var(--red) 80%, transparent); }
.play-btn.loading { opacity: .7; animation: pulse 1.2s infinite; }
.dock-btn { width: 40px; height: 40px; flex: none; border-radius: 11px; display: grid; place-items: center; color: var(--text-muted); border: 1px solid var(--border); background: var(--card); transition: background .15s, color .15s, border-color .15s; }
.dock-btn:hover { color: var(--text); background: var(--muted); }
.dock-btn.active { color: var(--primary); border-color: color-mix(in srgb, var(--primary) 40%, transparent); background: var(--primary-soft); }
.dark .dock-btn.active, :root:not(.light) .dock-btn.active { color: var(--accent); }
.dock-btn svg { width: 17px; height: 17px; }
.dock-progress { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.dock-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 11.5px; color: var(--text-muted); font-weight: 600; }
.dock-meta b { color: var(--text); font-weight: 800; font-size: 12.5px; font-variant-numeric: tabular-nums; }
.track { height: 5px; border-radius: 999px; background: color-mix(in srgb, var(--text-muted) 22%, transparent); overflow: hidden; direction: ltr; }
.track > div { height: 100%; width: 0%; border-radius: 999px; background: linear-gradient(90deg, var(--primary), color-mix(in srgb, var(--primary) 55%, var(--accent))); transition: width .08s linear; }
.dock-tempo { display: flex; align-items: center; gap: 2px; border: 1px solid var(--border); border-radius: 11px; background: var(--card); overflow: hidden; flex: none; }
.dock-tempo button { width: 30px; height: 38px; color: var(--text-muted); display: grid; place-items: center; }
.dock-tempo button:hover { background: var(--muted); color: var(--text); }
.dock-tempo svg { width: 15px; height: 15px; }
.dock-tempo span { min-width: 34px; text-align: center; font-size: 13px; font-weight: 800; font-variant-numeric: tabular-nums; }
@media (max-width: 520px) { .dock-in { gap: 7px; } .play-btn { width: 48px; height: 48px; } .dock-btn { width: 36px; height: 36px; } .dock-tempo button { width: 26px; } .dock-tempo span { min-width: 28px; } }
.install-banner { bottom: calc(var(--dock-h) + 14px); }