:root {
  /* Color */
  --color-bg: #0a0a0a;
  --color-surface: #111111;
  --color-surface-elevated: #171717;
  --color-text: #f3f4f6;
  --color-text-secondary: #a3a3a3;
  --color-border: #262626;
  --color-accent: #22c55e;
  --color-accent-muted: rgba(34, 197, 94, 0.14);
  --color-warning: #ffb35c;
  --color-success: #4ade80;
  --color-error: #f07178;

  /* Typography */
  --font-sans: "Outfit", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --text-body: 1.0625rem;
  --leading-body: 1.65;
  --h1: clamp(2rem, 4vw, 3.25rem);
  --h2: clamp(1.5rem, 2.5vw, 2rem);
  --h3: 1.25rem;

  /* Space (4/8 scale) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;

  /* Shape */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-focus: 0 0 0 3px var(--color-accent-muted);

  /* Layout */
  --container: 72rem;
  --content-narrow: 44rem;
  --header-h: 4rem;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 280ms;
}