/* CHATGPT: keyword cloud, related reading, and comments. */
.keyword-cloud {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 12px 16px; margin: 30px 0 12px; padding: clamp(22px, 4vw, 42px);
  border: 1px solid var(--line); border-radius: 18px; background: var(--surface);
}
.keyword-chip {
  display: inline-block; color: var(--accent); text-decoration: none;
  line-height: 1.8; padding: 2px 5px; border-radius: 5px;
  transition: background .15s ease, transform .15s ease;
}
.keyword-chip:hover { background: var(--soft); transform: translateY(-1px); }
.keyword-chip.weight-2 { font-size: .92rem; }
.keyword-chip.weight-3 { font-size: 1.08rem; font-weight: 600; }
.keyword-chip.weight-4 { font-size: 1.28rem; font-weight: 700; }
.keyword-chip.weight-5 { font-size: 1.55rem; font-weight: 800; }
.related-posts {
  margin: 48px auto 30px; padding-top: 28px; border-top: 1px solid var(--line);
  max-width: 900px;
}
.related-posts > h2 { margin: 0 0 22px; font-size: 1.45rem; }
.related-group { margin: 0 0 26px; }
.related-group h3 { margin: 0 0 10px; font-size: 1.02rem; color: var(--muted); }
.related-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 22px; list-style: none; padding: 0; margin: 0; }
.related-list li { min-width: 0; padding: 12px 0; border-bottom: 1px solid var(--line); }
.related-list a { display: inline-block; font-size: 1.08rem; font-weight: 750; line-height: 1.85; text-decoration: none; }
.related-list a:hover { text-decoration: underline; text-underline-offset: .2em; }
.source-post-link { display: block; width: fit-content; max-width: 820px; margin-top: 24px; margin-left: 0; margin-right: auto; text-align: left; direction: rtl; font-size: .9rem; }
.article-tags { margin-top: 12px; }
.source-post-link a { display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; border: 1px solid var(--line); border-radius: 7px; text-decoration: none; direction: rtl; }
.source-post-link a:hover { border-color: var(--accent); background: var(--soft); }
.related-list time { display: block; margin-top: 4px; color: var(--muted); font-size: .78rem; }
.comments-area { margin: 44px auto 24px; padding-top: 28px; border-top: 1px solid var(--line); max-width: 900px; }
.comments-area h2 { margin: 0 0 14px; font-size: 1.4rem; }
@media (max-width: 620px) {
  .related-list { grid-template-columns: minmax(0, 1fr); }
  .keyword-cloud { gap: 8px 11px; }
}
/* CHATGPT: responsive archive filters for Solar Hijri and Gregorian dates. */
.history-page { max-width: 900px; margin-inline: auto; }
.history-filter { display: grid; grid-template-columns: 1fr 1fr 1fr auto; align-items: end; gap: 14px; margin-top: 28px; padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.history-field { min-width: 0; }
.history-field label { display: block; margin-bottom: 6px; font-size: .85rem; font-weight: 700; }
.history-field select { width: 100%; min-width: 0; padding: 11px 12px; border: 1px solid var(--line); border-radius: 7px; background: var(--page); color: var(--ink); font: inherit; }
.history-filter .search-button { min-height: 47px; white-space: nowrap; }
@media (max-width: 700px) { .history-filter { grid-template-columns: 1fr 1fr; } .history-filter .search-button { grid-column: 1 / -1; width: 100%; } }
@media (max-width: 420px) { .history-filter { grid-template-columns: 1fr; } }

/* CHATGPT: localized, compact taxonomy indexes. */
.taxonomy-terms { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 16px; margin-top: 28px; }
.taxonomy-term { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 13px 15px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); text-decoration: none; }
.taxonomy-term:hover { border-color: var(--accent); background: var(--soft); }
.taxonomy-count { color: var(--muted); font-size: .8rem; font-variant-numeric: tabular-nums; }
[hidden] { display: none !important; }
@media (max-width: 620px) { .taxonomy-terms { grid-template-columns: minmax(0, 1fr); } }

/* CHATGPT: align previous and next post links on one row, with previous on the right in RTL. */
.post-neighbors { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 24px; direction: rtl; }
.post-neighbor { min-width: 0; }
.post-neighbor .related-list { grid-template-columns: minmax(0, 1fr); }
.post-thumbnail { display: block; width: 120px; height: 90px; aspect-ratio: 4 / 3; overflow: hidden; border-radius: 8px; background: var(--soft); }
.post-thumbnail img { display: block; width: 100%; height: 100%; object-fit: cover; }
.post-card:has(.post-thumbnail) { grid-template-columns: 120px minmax(0, 1fr) auto; align-items: start; direction: ltr; }
.post-card:has(.post-thumbnail) .post-card-main { grid-column: 2; direction: rtl; }
.post-card:has(.post-thumbnail) .post-number { grid-column: 3; }
@media (max-width: 620px) {
  .post-neighbors { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .post-neighbor .related-list a { font-size: .95rem; }
  .post-card:has(.post-thumbnail) { grid-template-columns: 120px minmax(0, 1fr); gap: 0 12px; direction: ltr; }
  .post-card:has(.post-thumbnail) .post-thumbnail { width: 120px; }
  .post-card:has(.post-thumbnail) .post-card-main { grid-column: 2; }
}

/* CHATGPT: visually separate anniversary year labels from linked post titles. */
.years-ago { display: inline; color: var(--muted); font-size: .82rem; white-space: nowrap; }
.years-ago::before { content: " | "; white-space: pre; }