/* FMU spacing, radius, elevation, layout. 4px base. Tight radii = industrial precision. */
:root {
  /* ---- Spacing scale (4px base) ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* ---- Radius (keep corners crisp) ---- */
  --radius-sm: 2px;   /* inputs, tags */
  --radius-md: 4px;   /* buttons, cards */
  --radius-lg: 8px;   /* large panels, images */
  --radius-pill: 999px; /* chips/badges only */

  /* ---- Borders ---- */
  --border-hairline: 1px;
  --border-emphasis: 2px;

  /* ---- Elevation (matte, not glossy) ---- */
  --shadow-sm: 0 1px 2px rgba(21,16,15,.06);
  --shadow-md: 0 4px 12px rgba(21,16,15,.08);
  --shadow-lg: 0 12px 32px rgba(21,16,15,.10);

  /* ---- Layout ---- */
  --content-max: 1280px;
  --gutter: 24px;
  --section-pad: 96px;
}