/* ============================================================
   Oxygène — Effects: radius, shadow, borders, motion
   Restraint is the brief. Small radii, soft low-contrast shadows,
   hairline warm borders, quiet ease-out motion (no bounce).
   ============================================================ */

:root {
  /* ---- Radius (institutional, restrained) ---- */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-xl: 16px;
  --radius-pill: 999px;

  /* ---- Elevation — soft, warm-tinted, low contrast ---- */
  --shadow-xs: 0 1px 2px rgba(20, 32, 43, 0.05);
  --shadow-sm: 0 1px 3px rgba(20, 32, 43, 0.06), 0 1px 2px rgba(20, 32, 43, 0.04);
  --shadow-md: 0 4px 12px rgba(16, 42, 66, 0.08), 0 1px 3px rgba(16, 42, 66, 0.05);
  --shadow-lg: 0 12px 32px rgba(13, 46, 71, 0.12), 0 4px 10px rgba(13, 46, 71, 0.06);
  --shadow-xl: 0 24px 60px rgba(10, 35, 55, 0.16);

  /* ---- Border widths ---- */
  --border-hairline: 1px;
  --border-thick: 2px;
  --border-accent: 3px;   /* gold rule under headings */

  /* ---- Motion ---- */
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);    /* @kind other */
  --ease-in-out: cubic-bezier(0.45, 0, 0.2, 1);      /* @kind other */
  --dur-fast: 120ms;   /* @kind other */
  --dur: 220ms;        /* @kind other */
  --dur-slow: 360ms;   /* @kind other */

  /* ---- Focus ---- */
  --focus-width: 3px;   /* @kind other */
}