/* ============================================================================
   HiClotho elevation
   "Warm paper" — flat. The old neo-brutalist hard drop-shadow is retired.
   Surfaces are bounded by a 1px hairline; where a little lift is wanted, a
   single very-faint diffused shadow. Two levels only. Mirrors app_theme.dart
   (cardShadow / softShadow).
   ============================================================================ */

:root {
  /* Card — 0.04 alpha, blur 16, y+4. The default gentle lift. */
  --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.04);
  /* Soft — 0.06 alpha, blur 24, y+8. Sheets / floating panels. */
  --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.06);
  /* Focus ring — accent at low alpha, used as a spread ring on the self avatar
     and focused controls. */
  --ring-accent: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);
}

/* Dark mode deepens the shadows slightly (surfaces sit on near-black forest). */
:root[data-theme="dark"],
.theme-dark {
  --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.20);
  --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.33);
}