/* Lab Effects — elevation. Shadows are tinted with ink (10,35,38), never pure black, so they read cool. */
:root {
  --shadow-sm:      0 1px 2px rgba(10,35,38,0.06);
  --shadow-card:    0 2px 8px rgba(10,35,38,0.08);
  --shadow-button:  0 2px 6px rgba(18,93,103,0.25);
  --shadow-popover: 0 8px 32px rgba(10,35,38,0.16);
  --shadow-lifted:  0 16px 48px rgba(10,35,38,0.20);
}