/**
 * North star N4 — touch targets ≥44px on marked controls (portal/backend).
 * Apply class min-touch-target to primary nav actions, form submits, pagination.
 */
.min-touch-target {
  min-height: 2.75rem;
  min-width: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}
.portal-shell .btn.min-touch-target,
.backend-shell .btn.min-touch-target {
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}