/* Разделитель входит в высоту .site-row: якоря и окна reader.js измеряют
   те же строки, а badge не становится дополнительным flex-элементом. */
.site-scroll[data-mode="feed"] { --site-date-space: 44px; }
.site-row--day-start {
  position: relative;
  padding-top: calc(3px + var(--site-date-space));
}

.site-date-divider,
.site-date-floating {
  text-align: center;
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  color: var(--site-faint);
  font-size: 12px;
  line-height: 18px;
  font-weight: 500;
}

.site-date-divider {
  position: absolute;
  top: 11px;
  inset-inline: 0;
  height: 26px;
}
.site-date-divider[hidden] { display: none; }

.site-date-divider > span,
.site-date-floating > span {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--site-bubble);
  box-shadow: var(--site-shadow);
  white-space: nowrap;
}

.site-date-floating {
  position: fixed;
  top: calc(var(--site-date-top, 8px) + env(safe-area-inset-top));
  z-index: 15;
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s ease, visibility 0s .35s;
}
.site-date-floating.is-visible {
  opacity: 1;
  visibility: visible;
  transition: opacity .12s ease, visibility 0s;
}

@media (prefers-reduced-motion: reduce) {
  .site-date-floating,
  .site-date-floating.is-visible { transition: none; }
}