:root[data-brand="beta"] {
  --nucleus-color-action-primary: #1d4ed8;
  --nucleus-color-action-on-primary: #f8fafc;
  --nucleus-color-surface: #0f172a;
  --nucleus-color-on-surface: #e2e8f0;
  --nucleus-font-family: system-ui, sans-serif;
  --nucleus-font-size-body: 0.9375rem;
  --nucleus-font-size-headline: 1.75rem;
  --nucleus-space-xs: 0.25rem;
  --nucleus-space-sm: 0.5rem;
  --nucleus-space-md: 0.75rem;
  --nucleus-space-lg: 1.25rem;
  --nucleus-space-xl: 2rem;
}