/* Citation record: BibTeX in a native disclosure element. It opens without
   a script. Only the copy button needs one. */

.cite {
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.cite summary {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  color: var(--accent-strong);
  letter-spacing: 0.06em;
  list-style: none;
}

.cite summary::-webkit-details-marker { display: none; }

.cite summary .caret {
  width: 0.62rem;
  height: 0.62rem;
  transition: transform 160ms ease;
}

.cite[open] summary .caret { transform: rotate(90deg); }

.cite-body {
  position: relative;
  margin-top: 0.75rem;
  border: 1px solid var(--line);
  background: var(--surface);
}

.cite-body pre {
  margin: 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font-size: 0.72rem;
  line-height: 1.65;
  color: var(--muted);
  /* A long line scrolls in the box. It does not widen the page. */
  white-space: pre;
  -webkit-overflow-scrolling: touch;
}

.copy-btn {
  display: none;
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  transition: color 140ms ease, border-color 140ms ease;
}

.js .copy-btn { display: inline-flex; }

@media (max-width: 720px) {
  .cite-body pre { padding: 0.85rem 0.9rem; }
  .copy-btn { position: static; margin: 0.55rem 0.9rem 0.85rem; }
}

/* The format tabs. They need a script, so CSS shows them with the js class.
   The space on the right keeps them clear of the copy button. */
.cite-tabs {
  display: none;
  gap: 0.3rem;
  padding: 0.6rem 5.2rem 0 0.65rem;
  flex-wrap: wrap;
}

.js .cite-tabs { display: flex; }

.cite-tab {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
  background: none;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.26rem 0.7rem;
  cursor: pointer;
  transition: color 140ms ease, border-color 140ms ease;
}

.cite-tab:hover, .cite-tab:focus-visible { color: var(--accent-strong); }