:root {
  /* Typography */
  --font-sans: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  --font-mono: "Space Mono", ui-monospace, SFMono-Regular, Menlo, Monaco,
    Consolas, "Liberation Mono", "Courier New", monospace;

  /* Colors (dark theme) */
  --color-bg: #020617; /* near-black with a hint of blue */
  --color-fg: #f9fafb;
  --color-surface: #020617;
  --color-border-subtle: #1f2933;
  --color-muted: #9ca3af;

  /* Brand / accents */
  --color-primary: #4f46e5; /* indigo */
  --color-primary-soft: rgba(79, 70, 229, 0.18);
  --color-accent: #22d3ee; /* cyan */

  /* Buttons */
  --color-btn-primary-bg: var(--color-primary);
  --color-btn-primary-fg: #f9fafb;
  --color-btn-secondary-bg: transparent;
  --color-btn-secondary-fg: #e5e7eb;

  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.4rem;
  --radius-lg: 1rem;
  --radius-pill: 999px;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 0.75rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
}