/* APC — Spacing, radius, shadow, layout, motion tokens */
:root {
  /* Spacing — 4px base, generous rhythm */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;
  --sp-10: 128px;

  /* Radius — restrained, industrial. Nothing pill-soft on structure. */
  --r-none: 0px;
  --r-sm: 2px;
  --r-md: 4px;
  --r-lg: 6px;
  --r-xl: 10px;
  --r-pill: 999px;

  /* Borders */
  --bw-hair: 1px; /* @kind spacing */
  --bw-thick: 2px; /* @kind spacing */
  --accent-bar: 3px; /* @kind spacing */

  /* Shadows — subtle, no glow. Cool-neutral cast. */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.05);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.06);
  --shadow-inset: inset 0 0 0 1px var(--line);

  /* Layout */
  --container: 1200px; /* @kind spacing */
  --container-wide: 1360px; /* @kind spacing */
  --gutter: 24px; /* @kind spacing */
  --header-h: 76px; /* @kind spacing */

  /* Motion — measured, no bounce */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1); /* @kind other */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1); /* @kind other */
  --dur-fast: 120ms; /* @kind other */
  --dur: 200ms; /* @kind other */
  --dur-slow: 360ms; /* @kind other */
}