:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #f59e0b;

  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", sans-serif;
}