/* Endnotes and cross-references (js/endnotes.js, js/cross-references.js). */
.udoc-note-ref {
  vertical-align: super;
  font-size: 0.66em;
  line-height: 0;
  cursor: pointer;
  user-select: all;
}
.udoc-note-ref[data-note-kind="footnote"] { color: inherit; }
.udoc-note-mark {
  vertical-align: super;
  font-size: 0.7em;
  line-height: 0;
  user-select: none;
}
.udoc-note-sep {
  display: block;
  width: 33%;
  height: 0;
  margin: 18px 0 10px;
  border-top: 1px solid currentColor;
  opacity: 0.6;
  pointer-events: none;
}
.udoc-xref {
  cursor: pointer;
  border-radius: 2px;
}
#pages[contenteditable="true"] .udoc-xref { background: rgba(37, 99, 196, 0.08); }
#pages[contenteditable="true"] .udoc-xref:hover { background: rgba(37, 99, 196, 0.16); }
.udoc-xref.udoc-xref-error { color: #c62828; }
@media print {
  #pages .udoc-xref { background: none !important; }
}

.ud-ref-dialog {
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.28);
}
.ud-ref-dialog.hidden { display: none; }
.ud-ref-box {
  width: min(460px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  overflow: auto;
  background: var(--ud-surface, #fff);
  color: var(--ud-text, #1f2937);
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.24);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
}
.ud-xref-box { width: min(560px, calc(100vw - 32px)); }
.ud-ref-box header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px 8px;
  font-weight: 600;
  font-size: 15px;
}
.ud-ref-close {
  border: 0;
  background: transparent;
  font-size: 15px;
  cursor: pointer;
  color: inherit;
  opacity: 0.6;
}
.ud-ref-body { padding: 4px 18px 8px; display: grid; gap: 10px; }
.ud-ref-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ud-ref-field { display: grid; gap: 4px; }
.ud-ref-field > span { font-size: 12px; opacity: 0.75; }
.ud-ref-field select, .ud-ref-field input {
  font: inherit;
  padding: 5px 8px;
  border: 1px solid rgba(15, 23, 42, 0.18);
  border-radius: 6px;
  background: var(--ud-surface, #fff);
  color: inherit;
}
.ud-ref-list select { min-height: 180px; }
.ud-ref-radio { display: flex; gap: 8px; align-items: center; cursor: pointer; }
.ud-ref-hint { margin: 0; font-size: 12px; opacity: 0.7; }
.ud-ref-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 8px 18px 16px;
}
.ud-ref-actions button {
  font: inherit;
  padding: 6px 16px;
  border-radius: 8px;
  border: 1px solid rgba(15, 23, 42, 0.18);
  background: transparent;
  color: inherit;
  cursor: pointer;
}
.ud-ref-actions .ud-ref-ok {
  background: var(--ud-accent, #2563eb);
  border-color: transparent;
  color: #fff;
}
.ud-ref-actions .ud-ref-ok:disabled { opacity: 0.5; cursor: default; }
@media (max-width: 520px) {
  .ud-ref-row { grid-template-columns: 1fr; }
}