:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1f1d1a;
  --muted: #6b665e;
  --line: #e6e1d8;
  --accent: #8a3b12;
  --accent-soft: #f6ece4;
  --ok: #2f7d4f;
  --warn: #b7791f;
  --none: #c9c3b8;
  --code: #f3f0ea;
  --radius: 10px;
  --font: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", "Heiti TC", system-ui, sans-serif;
  --font-read: "Noto Serif TC", "Songti TC", "PMingLiU", "PingFang TC", serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161513; --surface: #1e1c19; --text: #ebe6dd; --muted: #a39d92; --line: #34312c;
    --accent: #e08a5a; --accent-soft: #2c211b; --ok: #5fbf85; --warn: #e0b04f; --none: #4a463f;
    --code: #24221f; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #161513; --surface: #1e1c19; --text: #ebe6dd; --muted: #a39d92; --line: #34312c;
  --accent: #e08a5a; --accent-soft: #2c211b; --ok: #5fbf85; --warn: #e0b04f; --none: #4a463f;
  --code: #24221f; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.75 var(--font); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }

/* header */
.site-header { border-bottom: 1px solid var(--line); background: var(--surface); position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; gap: 20px; min-height: 56px; flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--text); letter-spacing: .04em; }
.site-nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 15px; }
.site-nav a { color: var(--muted); }
.site-nav a[aria-current="page"] { color: var(--text); font-weight: 600; }
.site-footer { color: var(--muted); font-size: 13px; padding: 40px 16px 48px; border-top: 1px solid var(--line); margin-top: 56px; }

/* home */
.hero { padding: 40px 0 16px; }
.hero h1 { font-size: 30px; margin: 0 0 6px; letter-spacing: .03em; }
.lede { color: var(--muted); margin: 0 0 20px; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; max-width: 520px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px; }
.stat b { display: block; font-size: 22px; font-variant-numeric: tabular-nums; }
.stat span { font-size: 13px; color: var(--muted); }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; margin: 24px 0 8px; }
#q { flex: 1 1 260px; font: inherit; padding: 9px 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--text); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font: inherit; font-size: 14px; padding: 4px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--text); cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.toggle { font-size: 14px; color: var(--muted); display: flex; gap: 6px; align-items: center; }
.legend { font-size: 13px; color: var(--muted); display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.series h2 { font-size: 19px; margin: 32px 0 8px; }
.series h2 small { font-size: 13px; color: var(--muted); font-weight: 400; margin-left: 8px; }
.rows { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.row { display: grid; grid-template-columns: 44px 1fr auto auto; gap: 12px; align-items: center; padding: 8px 4px; border-bottom: 1px solid var(--line); }
.row .num, .row .dur { color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; }
.row .t { min-width: 0; overflow-wrap: anywhere; }
.row.unprocessed .t { color: var(--muted); }
.row .source-note { display: block; color: var(--muted); font-size: 13px; overflow-wrap: anywhere; }
.dots { display: inline-flex; gap: 4px; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--none); }
.dot.s-done, .dot.s-edited { background: var(--ok); }
.dot.s-stale { background: var(--warn); }
#insight-results { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 16px; margin: 8px 0; }
#insight-results h3 { font-size: 14px; color: var(--muted); margin: 0 0 6px; font-weight: 600; }
#insight-results ul { margin: 0; padding-left: 18px; }
.hidden { display: none !important; }

/* talk page */
.crumbs { font-size: 14px; color: var(--muted); margin: 28px 0 4px; }
.talk-title { font-size: 28px; line-height: 1.35; margin: 0 0 8px; }
.meta { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--muted); font-size: 14px; margin: 0 0 14px; }
.callout { background: var(--accent-soft); border-left: 3px solid var(--accent); padding: 10px 14px; border-radius: 6px; font-size: 14px; }
.callout.warn { border-color: var(--warn); }
.preview { overflow-wrap: anywhere; }
.timestamp, .term-anchor { scroll-margin-top: 130px; }
.timestamp:target { background: var(--accent-soft); outline: 1px solid var(--accent); }
.prose a, .prose code { overflow-wrap: anywhere; }
/* Reviewed warning classifications are long identifiers, not unbreakable prose. */
.prose { overflow-wrap: anywhere; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin: 20px 0 0; overflow-x: auto; position: sticky; top: 56px; background: var(--bg); z-index: 5; }
.tab { padding: 10px 14px; color: var(--muted); border-bottom: 2px solid transparent; white-space: nowrap; font-weight: 600; }
.tab:hover { text-decoration: none; color: var(--text); }
.tab[aria-selected="true"] { color: var(--text); border-color: var(--accent); }
.badge { font-size: 11px; font-weight: 500; padding: 1px 6px; border-radius: 999px; margin-left: 4px; vertical-align: 1px; border: 1px solid var(--line); color: var(--muted); }
.badge.s-done { color: var(--ok); border-color: currentColor; }
.badge.s-stale { color: var(--warn); border-color: currentColor; }
.panel { padding-top: 8px; }
.js .panel { display: none; }
.js .panel.active { display: block; }
.pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 48px; font-size: 14px; }

/* prose */
.prose { font-family: var(--font-read); font-size: 17px; line-height: 1.95; max-width: 720px; }
.prose.wide { max-width: none; }
.prose h2, .prose h3, .prose h4 { font-family: var(--font); line-height: 1.4; scroll-margin-top: 110px; }
.prose h2 { font-size: 22px; margin: 2em 0 .6em; padding-bottom: .3em; border-bottom: 1px solid var(--line); }
.prose h3 { font-size: 18px; margin: 1.6em 0 .5em; }
.prose h3.insight-h { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius) var(--radius) 0 0; padding: 10px 14px; margin-bottom: 0; font-size: 16px; }
.prose h3.insight-h + ul { background: var(--surface); border: 1px solid var(--line); border-top: 0; border-radius: 0 0 var(--radius) var(--radius); margin-top: 0; padding: 8px 14px 10px 32px; font-size: 15px; line-height: 1.8; }
.prose h3.insight-h:target { border-color: var(--accent); }
.prose p { margin: .9em 0; }
.prose blockquote { margin: 1.2em 0; padding: .4em 1em; border-left: 3px solid var(--accent); background: var(--accent-soft); border-radius: 0 6px 6px 0; }
.prose code { background: var(--code); padding: .1em .35em; border-radius: 4px; font-size: .88em; }
.prose pre:not(.mermaid) { background: var(--code); padding: 12px 14px; border-radius: 8px; overflow-x: auto; }
.prose table { border-collapse: collapse; width: 100%; font-family: var(--font); font-size: 14px; line-height: 1.6; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--line); padding: 6px 8px; text-align: left; vertical-align: top; }
.prose th { background: var(--surface); position: sticky; top: 0; }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
.prose .footnotes { font-size: 14px; color: var(--muted); border-top: 1px solid var(--line); margin-top: 3em; }
pre.mermaid { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; overflow-x: auto; text-align: center; font-family: var(--font); line-height: 1.4; }
pre.mermaid:not([data-processed]) { color: var(--muted); white-space: pre-wrap; text-align: left; font-size: 13px; }
/* Preserve readable native labels; the containing pre scrolls horizontally. */
pre.mermaid svg { max-width: none; height: auto; }
.mermaid-error { color: var(--warn); font-size: 13px; }
ul.plain { padding-left: 1.2em; }

@media (max-width: 640px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .row { grid-template-columns: 36px 1fr auto; }
  .row .dur { display: none; }
  .talk-title { font-size: 23px; }
  .prose { font-size: 16px; }
  .tabs { top: 0; position: static; }
}