/* Intentional review-only additions. Original presentation remains unchanged. */
#preview-notice {
  position: fixed;
  z-index: 2147483647;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  max-width: calc(100vw - 32px);
  padding: 16px 22px;
  border-radius: 12px;
  background: #2a2b2f;
  color: #fffaf0;
  box-shadow: 0 6px 30px #0003;
  font: 15px/1.5 Arial, sans-serif;
  text-align: center;
}
#preview-notice[hidden] { display: none; }