/* Keep the retired Quarto manual visually distinct from maintained documentation. */
body::before {
  content: "OLD Manual not maintained anymore";
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-28deg);
  z-index: 9999;
  pointer-events: none;
  color: rgba(150, 0, 0, 0.156);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: clamp(2rem, 5.6vw, 5.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
  white-space: nowrap;
}

@media print {
  body::before {
    color: rgba(150, 0, 0, 0.216);
  }
}