/* Textareas */
    .sort-textarea {
      width: 100%;
      min-height: 200px;
      padding: 16px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-mono);
      font-size: 0.9rem;
      color: var(--color-text);
      background: var(--color-surface);
      resize: vertical;
      line-height: 1.7;
      outline: none;
      transition: border-color var(--transition-fast);
    }

    .sort-textarea:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px var(--color-primary-light);
    }

    .sort-textarea::placeholder {
      color: var(--color-text-muted);
      font-family: var(--font-body);
    }

    .sort-textarea.output {
      background: var(--color-bg);
    }

    /* Section Labels */
    .workspace-label {
      font-size: 0.8rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--color-text-secondary);
      margin-bottom: 10px;
    }

    /* Sort Action Buttons */
    .sort-buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 20px 0;
    }

    .sort-btn {
      padding: 10px 18px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      background: var(--color-surface);
      font-family: var(--font-body);
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--color-text-secondary);
      cursor: pointer;
      transition: all var(--transition-fast);
      white-space: nowrap;
    }

    .sort-btn:hover {
      border-color: var(--color-primary-subtle);
      color: var(--color-primary);
      background: var(--color-primary-light);
    }

    .sort-btn.active {
      background: var(--color-primary);
      color: white;
      border-color: var(--color-primary);
      box-shadow: 0 2px 8px rgba(59,91,219,0.25);
    }

    /* Options Row */
    .options-row {
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
      margin: 0 0 20px 0;
      padding: 16px 20px;
      background: var(--color-bg);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
    }

    .option-item {
      display: flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
      user-select: none;
    }

    .option-item label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--color-text-secondary);
      cursor: pointer;
    }

    /* Toggle Switch */
    .toggle-switch {
      position: relative;
      width: 40px;
      height: 22px;
      flex-shrink: 0;
    }

    .toggle-switch input {
      opacity: 0;
      width: 0;
      height: 0;
    }

    .toggle-slider {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: var(--color-border);
      border-radius: 22px;
      transition: all 200ms ease;
      cursor: pointer;
    }

    .toggle-slider::before {
      content: '';
      position: absolute;
      width: 16px;
      height: 16px;
      left: 3px;
      bottom: 3px;
      background: white;
      border-radius: 50%;
      transition: all 200ms ease;
    }

    .toggle-switch input:checked + .toggle-slider {
      background: var(--color-primary);
    }

    .toggle-switch input:checked + .toggle-slider::before {
      transform: translateX(18px);
    }

    /* Output Section */
    .output-section {
      margin-top: 20px;
      padding-top: 20px;
      border-top: 1px solid var(--color-border-light);
    }

    /* Stats Bar */
    .stats-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 12px;
      padding: 14px 20px;
      background: var(--color-bg);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
    }

    .stat-item {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .stat-label {
      font-size: 0.7rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--color-text-muted);
    }

    .stat-value {
      font-family: var(--font-mono);
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--color-text);
    }

    /* Action Buttons */
    .sort-actions {
      display: flex;
      gap: 12px;
      margin-top: 16px;
      flex-wrap: wrap;
    }

    /* Responsive */
    @media (max-width: 768px) {
      .sort-buttons {
        gap: 6px;
      }

      .sort-btn {
        padding: 8px 14px;
        font-size: 0.8rem;
      }

      .options-row {
        gap: 16px;
      }
    }

    @media (max-width: 480px) {
      .sort-buttons {
        gap: 6px;
      }

      .sort-btn {
        flex: 1 1 calc(50% - 6px);
        text-align: center;
        padding: 10px 8px;
      }

      .options-row {
        flex-direction: column;
        gap: 14px;
      }

      .sort-actions {
        flex-direction: column;
      }

      .sort-actions .btn {
        width: 100%;
      }
    }