.site-update-overlay[hidden] { display: none; }
.site-update-overlay {
  position: fixed;
  z-index: 1000;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: auto;
  padding: 18px;
  background: rgb(15 24 20 / 52%);
  pointer-events: none;
}
.site-update-dialog {
  position: relative;
  pointer-events: auto;
  width: min(620px, 100%);
  max-height: min(88dvh, 760px);
  overflow: auto;
  padding: 28px 30px 24px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--gold);
  border-radius: 16px;
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 24px 70px rgb(0 0 0 / 28%);
}
.site-update-dialog h2 { margin: 0 38px 14px 0; font: 800 23px/1.4 "Noto Serif SC", "Songti SC", serif; }
.site-update-dialog p { margin: 0 0 10px; color: var(--ink-2); }
.site-update-dialog ul { margin: 0; padding-left: 1.35em; color: var(--ink-2); }
.site-update-dialog li { margin: 8px 0; }
.site-update-close {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--ink-2);
  font: 26px/1 system-ui, sans-serif;
  cursor: pointer;
}
.site-update-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 20px; }
.site-update-dismiss, .site-update-guide { min-height: 42px; padding: 9px 16px; border: 1px solid var(--accent); border-radius: 9px; font: inherit; font-weight: 700; cursor: pointer; }
.site-update-dismiss { background: var(--accent); color: var(--accent-ink); }
.site-update-guide { display: inline-flex; align-items: center; background: transparent; color: var(--accent); text-decoration: none; }
.site-update-close:focus-visible, .site-update-dismiss:focus-visible, .site-update-guide:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
@media (max-width: 560px) {
  .site-update-overlay { align-items: center; padding: 12px; }
  .site-update-dialog { width: 100%; max-height: 90dvh; padding: 24px 19px 20px; border-radius: 14px; }
  .site-update-dialog h2 { font-size: 20px; }
  .site-update-actions { display: grid; grid-template-columns: 1fr; }
  .site-update-dismiss, .site-update-guide { justify-content: center; width: 100%; }
}