/* SHADOW TOKENS — iOS shadow scale flattened to CSS box-shadow.
 * Role names map to surface intents (bolt-ds semantic/shadows.ts).
 *   card → resting cards · sheet → bottom sheets · modal → centred modals
 *   toast/tooltip → floating transient · thumb → halo on small handles
 *   floating → soft cushion for lifted chrome (TabBar) */
:root {
  --shadow-none: none;
  --shadow-card: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-floating: 0 4px 8px rgba(0, 0, 0, 0.10);
  --shadow-toast: 0 4px 8px rgba(0, 0, 0, 0.10);
  --shadow-tooltip: 0 4px 8px rgba(0, 0, 0, 0.10);
  --shadow-sheet: 0 8px 16px rgba(0, 0, 0, 0.12);
  --shadow-modal: 0 16px 24px rgba(0, 0, 0, 0.16);
  --shadow-thumb: 0 0 8px rgba(0, 0, 0, 0.08);
}