html.auth-checking body {
  visibility: hidden;
}

html.auth-checking::before {
  content: 'Checking sign in…';
  visibility: visible;
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: Inter, system-ui, sans-serif;
  font-size: 15px;
  color: #4a5568;
  background: #fafbfc;
  z-index: 99999;
}