/* ============================================================
   EFFECTS — radii, shadows, frosted blur, motion, borders
   Shadows are soft and cool-tinted (blue-grey), never black.
   The "frosted" idea lives here: translucent glass + backdrop
   blur over imagery and ink surfaces.
   ============================================================ */
:root {
  /* Corner radii — gentle, humane, never pill-everything */
  --radius-xs: 4px;
  --radius-sm: 7px;
  --radius-md: 11px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-2xl: 30px;
  --radius-pill: 999px;
  --radius-card: var(--radius-lg);

  /* Soft, cool-tinted shadows (blue-grey, low opacity) */
  --shadow-xs: 0 1px 2px rgba(41, 53, 60, 0.06);
  --shadow-sm: 0 2px 6px rgba(41, 53, 60, 0.07), 0 1px 2px rgba(41, 53, 60, 0.05);
  --shadow-md: 0 8px 20px rgba(41, 53, 60, 0.09), 0 2px 6px rgba(41, 53, 60, 0.06);
  --shadow-lg: 0 18px 40px rgba(41, 53, 60, 0.12), 0 4px 12px rgba(41, 53, 60, 0.07);
  --shadow-xl: 0 32px 64px rgba(29, 39, 45, 0.16), 0 8px 20px rgba(29, 39, 45, 0.08);
  --shadow-ring: 0 0 0 1px rgba(41, 53, 60, 0.06);

  /* Accent glow — used very sparingly */
  --shadow-accent: 0 8px 24px rgba(226, 104, 60, 0.22);

  /* Frosted glass blur amounts */
  --blur-sm: 6px;
  --blur-md: 14px;
  --blur-lg: 24px;

  /* Borders */
  --border-width: 1px;
  --border-hairline: 1px solid var(--border-subtle);
  --border-card: 1px solid var(--border-default);

  /* Motion — calm, confident, no bounce */
  --ease-standard: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 120ms;
  --dur-base: 200ms;
  --dur-slow: 360ms;
  --transition-base: all var(--dur-base) var(--ease-standard);
}