/* ZionDelta Labs — Elevation. Mostly flat; depth from hairlines + restrained shadow. */
:root {
  --zd-elev-0: none;
  --zd-elev-hairline: inset 0 -1px 0 var(--zd-hairline-soft);
  --zd-elev-1: 0 1px 2px rgba(17,19,22,0.06), 0 1px 1px rgba(17,19,22,0.04);
  --zd-elev-2: 0 8px 24px rgba(17,19,22,0.10);
  --zd-elev-overlay: 0 24px 64px rgba(17,19,22,0.18);
}