:root{
  /* ── Radii ──────────────────────────────────── */
  --radius-none:0;
  --radius-sm:4px;
  --radius-md:8px;
  --radius-lg:14px;
  --radius-xl:20px;
  --radius-pill:999px;

  /* ── Borders ────────────────────────────────── */
  --border-width:1px; /* @kind other */
  --border-width-thick:2px; /* @kind other */
  --border-width-stamp:3px; /* @kind other */ /* pennant / sticker outlines */

  /* ── Shadows — warm, low, never blue-grey ───── */
  --shadow-none:none;
  --shadow-xs:0 1px 2px rgba(3,50,58,.08);
  --shadow-sm:0 2px 6px rgba(3,50,58,.10);
  --shadow-md:0 6px 18px rgba(3,50,58,.12);
  --shadow-lg:0 16px 40px rgba(3,50,58,.16);
  --shadow-pressed:inset 0 2px 4px rgba(3,50,58,.18);
  /* Hard offset "printed sticker" shadow — signature treatment */
  --shadow-stamp:4px 4px 0 var(--pine-800);
  --shadow-stamp-sm:3px 3px 0 var(--pine-800);
  --shadow-stamp-accent:4px 4px 0 var(--sunset-500);
}