:root {
  color-scheme: dark;

  --color-canvas: #0e1f2f;
  --color-surface: #152c40;
  --color-surface-elevated: #27425d;
  --color-action: #23717b;
  --color-action-bright: #0d8a9e;
  --color-brand-accent: #c7652d;
  --color-text: #e5f9f8;
  --color-text-muted: #c1d1cf;
  --color-warm: #f7ebdd;
  --color-border: rgba(193, 209, 207, 0.16);
  --color-border-strong: rgba(193, 209, 207, 0.3);
  --color-overlay: rgba(6, 18, 29, 0.78);
  --color-success: #76c7ae;
  --color-warning: #e7a664;
  --color-error: #ff9b8b;
  --color-focus: #5ad0e1;

  --font-heading: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  --font-body: Inter, "Avenir Next", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: clamp(1.25rem, 1.7vw, 1.5rem);
  --text-xl: clamp(1.75rem, 3vw, 2.5rem);
  --text-hero: clamp(2.35rem, 5.4vw, 4.75rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --radius-xs: 0.125rem;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-pill: 999px;

  --shadow-soft: none;
  --shadow-popover: 0 24px 64px rgba(2, 12, 20, 0.52);

  --header-height: 4.5rem;
  --content-width: 90rem;
  --page-gutter: clamp(1rem, 4.2vw, 4.5rem);
  --motion-fast: 180ms;
  --motion-base: 250ms;
  --motion-pressed: 0ms;
  --motion-editorial: 420ms;
  --ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-hover: cubic-bezier(0.32, 0.94, 0.6, 1);

  --focus-width: 0.125rem;
  --focus-offset: 0.125rem;
  --target-min: 2.75rem;

  --z-behind: -1;
  --z-base: 0;
  --z-raised: 1;
  --z-content: 2;
  --z-header: 50;
  --z-popover: 80;
  --z-navigation: 100;
  --z-toast: 300;
}