:root {
  --ui-primitive-white: #ffffff;
  --ui-primitive-black: #000000;

  --ui-primitive-neutral-50: #f8fafc;
  --ui-primitive-neutral-100: #f1f5f9;
  --ui-primitive-neutral-200: #e2e8f0;
  --ui-primitive-neutral-300: #cbd5e1;
  --ui-primitive-neutral-400: #94a3b8;
  --ui-primitive-neutral-500: #64748b;
  --ui-primitive-neutral-600: #475569;
  --ui-primitive-neutral-700: #334155;
  --ui-primitive-neutral-800: #1e293b;
  --ui-primitive-neutral-900: #0f172a;

  --ui-primitive-brand-50: #eff6ff;
  --ui-primitive-brand-100: #dbeafe;
  --ui-primitive-brand-500: #0071e3;
  --ui-primitive-brand-600: #005bb5;
  --ui-primitive-brand-700: #004494;

  --ui-primitive-success-50: #ecfdf5;
  --ui-primitive-success-600: #059669;
  --ui-primitive-warning-50: #fffbeb;
  --ui-primitive-warning-600: #d97706;
  --ui-primitive-danger-50: #fef2f2;
  --ui-primitive-danger-600: #dc2626;

  --ui-primitive-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.1);
  --ui-primitive-shadow-md: 0 10px 28px rgba(15, 23, 42, 0.14), 0 2px 8px rgba(15, 23, 42, 0.08);
  --ui-primitive-focus-ring: 0 0 0 3px rgba(0, 113, 227, 0.32);

  --ui-space-0: 0;
  --ui-space-1: 0.25rem;
  --ui-space-2: 0.5rem;
  --ui-space-3: 0.75rem;
  --ui-space-4: 1rem;
  --ui-space-5: 1.25rem;
  --ui-space-6: 1.5rem;
  --ui-space-8: 2rem;

  --ui-radius-xs: 0.125rem;
  --ui-radius-sm: 0.1875rem;
  --ui-radius-md: 0.3125rem;
  --ui-radius-lg: 0.4375rem;
  --ui-radius-xl: 0.5rem;
  --ui-radius-pill: 999px;

  --ui-motion-duration-fast: 160ms;
  --ui-motion-duration-normal: 220ms;
  --ui-motion-duration-slow: 300ms;
  --ui-motion-easing-standard: cubic-bezier(0.25, 0.8, 0.25, 1);
  --ui-motion-easing-emphasized: cubic-bezier(0.16, 1, 0.3, 1);

  --ui-font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --ui-font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --ui-motion-duration-fast: 1ms;
    --ui-motion-duration-normal: 1ms;
    --ui-motion-duration-slow: 1ms;
  }
}