/* Keep this stylesheet boring: clean, readable, no auto dark-mode yet */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #ffffff;
  border-bottom: 1px solid #e6e6e6;
}

.site-header-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 520px) minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
}


.site-header-left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.site-title-link {
  text-decoration: none;
  color: #111;
  font-weight: 700;
  font-size: 1.6rem;
  line-height: 1;
}
.site-nav { display: inline-flex; gap: 12px; margin-left: 12px; }
.site-nav-link { text-decoration: none; color: #111; }
.site-nav-link:hover { text-decoration: underline; }

.site-header-center { display: flex; justify-content: center; }
.site-search { display: flex; gap: 8px; width: 100%; }
.site-search-input { flex: 1; padding: 8px 10px; border: 1px solid #bbb; border-radius: 3px; }
.site-search-submit { padding: 8px 12px; border: 1px solid #888; background: #f6f6f6; border-radius: 3px; cursor: pointer; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* Two-column layout: content + rightbar */
.page-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  padding: 18px 16px;
}

.maincol { min-width: 0; }

.rightbar {
  position: sticky;
  top: 70px; /* sits under the header */
  align-self: start;
  border: 1px solid #e6e6e6;
  border-radius: 10px;
  padding: 14px;
  background: #fff;
  width: 320px;
  max-width: 320px;

  /*
    Rightbar scrolling
    - The rightbar is sticky, so it needs its own scroll container for long option lists.
    - max-height uses viewport units so the header remains visible.
    - overscroll-behavior avoids scroll chaining into the page when the rightbar reaches its end.
  */
  max-height: calc(100vh - 90px);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  box-sizing: border-box;
}

.rightbar h3 { margin-top: 0; margin-bottom: 10px; }
.rightbar-section { margin-top: 12px; padding-top: 12px; border-top: 1px solid #eee; }
.rightbar-summary { cursor: pointer; }

/* --- 今日誦詩 (Daily Shijing) widget --- */
.daily-reading {
  border: 1px solid #eee;
  border-radius: 10px;
  padding: 12px;
  background: #fafafa;
}

/* Home page variant: wide enough for 4-character lines, but responsive. */
.daily-reading--home {
  width: clamp(360px, 28vw, 460px);
}

.daily-reading-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 6px;
}

.daily-reading-title {
  font-weight: 700;
}

.daily-reading-period {
  font-size: 12px;
  opacity: 0.85;
}

.daily-reading-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0;
  font-size: 13px;
}

.daily-reading-mao {
  border: 1px solid #ddd;
  border-radius: 999px;
  padding: 2px 8px;
  background: #fff;
}

.daily-reading-excerpt {
  border: 1px solid #e6e6e6;
  border-radius: 10px;
  padding: 10px;
  background: #fff;
}

.daily-reading-line {
  white-space: pre-wrap;
  line-height: 1.6;
}

.daily-reading-line-muted {
  opacity: 0.7;
}

.daily-reading-actions {
  margin-top: 10px;
}

.daily-reading-link {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid #888;
  background: #f6f6f6;
  border-radius: 8px;
  text-decoration: none;
  color: #111;
  font-size: 13px;
}

.daily-reading-link:hover {
  text-decoration: underline;
}

/* Collapsible option groups (details/summary) */
.rightbar-group > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.rightbar-group > summary::-webkit-details-marker { display: none; }
.rightbar-group > summary::before {
  content: "▸";
  display: inline-block;
  width: 1em;
}
.rightbar-group[open] > summary::before {
  content: "▾";
}
.rightbar-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; align-items: center; margin: 8px 0; }
.rightbar-row-stack {
  grid-template-columns: 1fr;
}
.rightbar-select { width: 100%; padding: 6px 8px; border: 1px solid #bbb; border-radius: 3px; }
.rightbar-input { width: 100%; padding: 6px 8px; border: 1px solid #bbb; border-radius: 3px; }
.rightbar-inline { display: inline-flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.rightbar-btn {
  padding: 6px 10px;
  border: 1px solid #888;
  background: #f6f6f6;
  border-radius: 4px;
  cursor: pointer;
}
.rightbar-unit { font-size: 12px; opacity: 0.85; }
.rightbar-apply { width: 100%; padding: 8px 10px; border: 1px solid #888; background: #f6f6f6; border-radius: 4px; cursor: pointer; }

.rightbar-note {
  grid-column: 1 / -1;
  font-size: 12px;
  opacity: 0.85;
}

.rightbar-credits {
  margin-top: 8px;
}

.rightbar-credits summary {
  cursor: pointer;
}

.rightbar-credits pre {
  white-space: pre-wrap;
  font-size: 11px;
  max-height: 180px;
  overflow: auto;
  background: #fafafa;
  padding: 8px;
  border: 1px solid #eee;
  border-radius: 8px;
}

@media (max-width: 980px) {
  .site-header-inner { grid-template-columns: 1fr; }
  .site-header-center { justify-content: stretch; }
  .page-shell { grid-template-columns: 1fr; }
  .rightbar { position: static; }
}

/* Ruby styles live in application.css (scoped to .char-glyph). */