.skip-link {
  position: fixed;
  inset-inline-start: 1rem;
  top: -5rem;
  z-index: 100000;
  padding: .75rem 1rem;
  border-radius: .375rem;
  background: #fff;
  color: #172554;
  box-shadow: 0 0 0 3px #2563eb;
}

.skip-link:focus { top: 1rem; }

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 3px solid #1d4ed8;
  outline-offset: 3px;
}