/* A quiet invitation; the book remains the primary interactive target. */
#bookEnter {
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  max-width: calc(100% - 32px);
  min-height: 30px;
  padding: 5px 16px;
  border: 1px solid #b9945766;
  border-radius: 99px;
  background: #091b2ab3;
  font-size: clamp(14px, 1.1cqw, 21px);
  font-weight: 500;
  line-height: 1.2;
  box-shadow: 0 2px 8px #0002;
  transition: background-color 180ms ease, border-color 180ms ease;
}
#bookEnter span { margin-left: 3px; font-size: .85em; }
#bookEnter:hover { background: #102637d9; border-color: #b99457aa; }
#bookEnter:focus-visible { outline: 2px solid #f0d48f; outline-offset: 4px; }