.tg-wrapper {
  --tg-accent: #e11d48;
  --tg-accent-glow: rgba(225, 29, 72, 0.3);
  --tg-canvas-line: #f43f5e;
  --tg-btn-bg: #e11d48;
  --tg-btn-stop-bg: #1e293b;
  --tg-surface: #fff;
  --tg-surface-alt: #f8fafc;
  --tg-border: #e2e8f0;
  --tg-text: #0f172a;
  --tg-text-muted: #64748b;
  --tg-text-faint: #94a3b8;

  width: 100%;
  color: var(--tg-text);
}

.theme-dark .tg-wrapper {
  --tg-btn-stop-bg: #27272a;
  --tg-surface: #09090b;
  --tg-surface-alt: #18181b;
  --tg-border: #27272a;
  --tg-text: #fafafa;
  --tg-text-muted: #a1a1aa;
  --tg-text-faint: #52525b;
}

    .tg-card {
      background: var(--tg-surface);
      border: 1px solid var(--tg-border);
      border-radius: 1.5rem;
      padding: 2rem;
      display: flex;
      flex-direction: column;
      gap: 2rem;
    }

    .tg-header {
      display: flex;
      align-items: center;
      gap: 1rem;
    }

    .tg-icon-wrap {
      flex-shrink: 0;
      padding: 0.75rem;
      background: rgba(225, 29, 72, 0.1);
      color: var(--tg-accent);
      border-radius: 1rem;
    }

    .tg-icon {
      width: 2rem;
      height: 2rem;
    }

    .tg-header-text {
      display: flex;
      flex-direction: column;
      gap: 0.125rem;
    }

    .tg-badge {
      display: inline-block;
      font-size: 0.625rem;
      font-weight: 900;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--tg-accent);
      background: rgba(225, 29, 72, 0.08);
      border: 1px solid rgba(225, 29, 72, 0.2);
      padding: 0.2rem 0.6rem;
      border-radius: 9999px;
      width: fit-content;
    }

    .tg-title {
      font-size: 1.75rem;
      font-weight: 900;
      letter-spacing: -0.02em;
      margin: 0;
      color: var(--tg-text);
    }

    .tg-desc {
      font-size: 0.875rem;
      color: var(--tg-text-muted);
      margin: 0;
    }

    .tg-canvas-wrap {
      position: relative;
      width: 100%;
      height: 12rem;
      background: #000;
      border-radius: 1rem;
      overflow: hidden;
      border: 1px solid #111;
    }

    .tg-canvas {
      width: 100%;
      height: 100%;
    }

    .tg-hz-display {
      position: absolute;
      top: 1rem;
      right: 1rem;
      font-size: 0.75rem;
      color: #f43f5e;
      letter-spacing: 0.05em;
      animation: tg-pulse 2s ease-in-out infinite;
    }

    .tg-controls {
      display: flex;
      flex-direction: column;
      gap: 2rem;
    }

    .tg-section {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    .tg-section-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .tg-label {
      font-size: 0.7rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      color: var(--tg-text-muted);
    }

    .tg-presets {
      display: flex;
      gap: 0.375rem;
    }

    .tg-preset {
      padding: 0.25rem 0.5rem;
      background: var(--tg-surface-alt);
      border: 1px solid var(--tg-border);
      border-radius: 0.375rem;
      font-size: 0.75rem;
      color: var(--tg-text-muted);
      cursor: pointer;
      transition: background 150ms, color 150ms;
    }

    .tg-preset:hover {
      background: var(--tg-border);
      color: var(--tg-text);
    }

    .tg-slider {
      -webkit-appearance: none;
      appearance: none;
      width: 100%;
      height: 6px;
      background: var(--tg-border);
      border-radius: 3px;
      outline: none;
      accent-color: var(--tg-accent);
    }

    .tg-slider::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 18px;
      height: 18px;
      background: var(--tg-accent);
      border-radius: 50%;
      cursor: pointer;
      border: 4px solid var(--tg-surface);
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    }

    .tg-range-hints {
      display: flex;
      justify-content: space-between;
      font-size: 0.625rem;
      color: var(--tg-text-faint);
      letter-spacing: 0.02em;
    }

    .tg-two-col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
    }

    @media (max-width: 640px) {
      .tg-two-col {
        grid-template-columns: 1fr;
      }
    }

    .tg-wave-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 0.5rem;
    }

    .tg-wave-btn {
      padding: 0.75rem;
      border-radius: 0.75rem;
      background: var(--tg-surface-alt);
      border: 1px solid var(--tg-border);
      color: var(--tg-text-muted);
      cursor: pointer;
      transition: background 150ms, color 150ms, box-shadow 150ms;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .tg-wave-btn:hover {
      background: var(--tg-border);
      color: var(--tg-text);
    }

    .tg-wave-icon {
      width: 1.5rem;
      height: 1.5rem;
    }

    .tg-vol-row {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      background: var(--tg-surface-alt);
      border: 1px solid var(--tg-border);
      border-radius: 0.75rem;
      padding: 0.75rem;
    }

    .tg-vol-icon {
      width: 1.25rem;
      height: 1.25rem;
      color: var(--tg-text-faint);
      flex-shrink: 0;
    }

    .tg-vol-slider {
      height: 4px;
    }

    .tg-toggle-btn {
      width: 100%;
      padding: 1.5rem;
      border-radius: 1rem;
      background: var(--tg-btn-bg);
      border: none;
      color: #fff;
      font-size: 1.125rem;
      font-weight: 900;
      letter-spacing: 0.05em;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.75rem;
      box-shadow: 0 8px 24px var(--tg-accent-glow);
      transition: background 200ms, box-shadow 200ms, transform 100ms;
    }

    .tg-toggle-btn:active {
      transform: scale(0.98);
    }

    .tg-btn-icon {
      display: inherit;
      align-items: center;
    }

    .tg-toggle-icon {
      width: 1.75rem;
      height: 1.75rem;
    }