/* ============================================================
   NVIDIA Design System — Spacing Tokens
   Base unit: 8px. Section rhythm (64px) governs vertical gaps
   between major blocks. Whitespace is structural, not atmospheric.
   ============================================================ */

:root {
  --space-xxs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;   /* card grid gutter, default in-card padding */
  --space-xxl: 32px;  /* dense in-card padding (feature/stat cards) */
  --space-section: 64px; /* vertical gap between major content blocks */

  /* Hero chapter padding — largest in the system */
  --space-hero-y: 80px;
  --space-hero-x: 48px;

  /* Layout */
  --container-max: 1280px;
  --gutter: 24px;
  --gutter-wide: 48px;
}