:root, [data-theme="light"] {
  --color-bg: #f5f5f5;
  --color-surface: #ffffff;
  --color-surface-2: #f9f9f9;
  --color-border: rgba(0,0,0,0.10);
  --color-divider: #e2e8f0;
  --color-text: #333333;
  --color-text-muted: #666666;
  --color-text-faint: #999999;
  --color-primary: #1a3734;
  --color-primary-hover: #1f423e;
  --color-primary-hl: #e9f0ee;
  --color-secondary: #95b8a8;
  --color-error: #dc2626;
  --color-error-hl: #fee2e2;
  --color-warning: #d97706;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 20px 50px rgba(0,0,0,0.12), 0 8px 20px rgba(0,0,0,0.08);
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;
  --font-display: Arial, sans-serif;
  --font-body: Arial, sans-serif;
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --transition: 180ms cubic-bezier(0.16,1,0.3,1);
}