:root {
  /* Colors */
  --color-primary: #0B1F3A;
  --color-primary-light: #173B67;
  --color-primary-dark: #071326;
  --color-brand: #155EEF;
  --color-brand-hover: #0B4DD8;
  --color-brand-light: #E8F0FE;
  --color-accent: #F4B740;
  --color-accent-light: #FEF3C7;
  --color-accent-dark: #D97706;
  --color-background: #FFFFFF;
  --color-surface: #F6F8FC;
  --color-surface-dark: #EAF0F8;
  --color-text: #172033;
  --color-text-soft: #5C667A;
  --color-text-light: #8892A8;
  --color-text-muted: #B0B8C9;
  --color-border: #DDE3EC;
  --color-border-light: #EFF2F6;
  --color-success: #168A5B;
  --color-success-light: #D1FAE5;
  --color-warning: #D97706;
  --color-warning-light: #FEF3C7;
  --color-error: #D92D20;
  --color-error-light: #FEE2E2;
  --color-info: #2563EB;
  --color-info-light: #DBEAFE;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --font-heading: 'Manrope', 'Inter', -apple-system, Arial, sans-serif;

  /* Font sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 1rem;
  --text-md: 1.0625rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: clamp(1.5rem, 2.5vw, 2rem);
  --text-4xl: clamp(1.75rem, 3vw, 2.75rem);
  --text-5xl: clamp(2.5rem, 4vw, 3.5rem);

  /* Spacing */
  --spacing-0: 0;
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-7: 1.75rem;
  --spacing-8: 2rem;
  --spacing-9: 2.25rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-14: 3.5rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(11, 31, 58, 0.06), 0 1px 3px rgba(11, 31, 58, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(11, 31, 58, 0.08), 0 2px 4px -1px rgba(11, 31, 58, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(11, 31, 58, 0.08), 0 4px 6px -2px rgba(11, 31, 58, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(11, 31, 58, 0.1), 0 10px 10px -5px rgba(11, 31, 58, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-index layers */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-header: 300;
  --z-overlay: 400;
  --z-modal: 500;
  --z-toast: 600;

  /* Containers */
  --container-max: 1280px;
  --container-narrow: 960px;
  --container-wide: 1400px;
}