/* Planning Citation Metrics. Light palette in :root, redefined for dark twice
   so an explicit choice wins over the OS in both directions. */
:root{
  --bg:#F6F7F5; --surface:#FFFFFF; --sunk:#EEF1F0; --ink:#1B232E; --muted:#5C6673;
  --rule:#D7DDE2; --rule-soft:#E6EBEE;
  --accent:#0E6B71; --accent-soft:#DDEEEE; --accent-ink:#0A4F54;
  --amber:#A96F12; --amber-soft:#F6EBD3;
  --warn:#9C3B2E; --bar:#BFD4D5;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#11161C; --surface:#181F27; --sunk:#1E262F; --ink:#E5EAEE; --muted:#97A2AD;
    --rule:#2B3540; --rule-soft:#222B34;
    --accent:#56B9BE; --accent-soft:#16333A; --accent-ink:#8FD6D9;
    --amber:#E2A83E; --amber-soft:#3A2E14;
    --warn:#E07A6A; --bar:#2F4A4D;
  }
}
:root[data-theme="dark"]{
  --bg:#11161C; --surface:#181F27; --sunk:#1E262F; --ink:#E5EAEE; --muted:#97A2AD;
  --rule:#2B3540; --rule-soft:#222B34;
  --accent:#56B9BE; --accent-soft:#16333A; --accent-ink:#8FD6D9;
  --amber:#E2A83E; --amber-soft:#3A2E14;
  --warn:#E07A6A; --bar:#2F4A4D;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.55 "Source Sans 3",system-ui,-apple-system,"Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:2px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,
th[role=button]:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
img{max-width:100%}

/* ---------------------------------------------------------------- chrome */
.bar{border-bottom:1px solid var(--rule);background:var(--surface)}
.bar-in{max-width:1100px;margin:0 auto;padding:12px 24px;display:flex;
  align-items:center;gap:10px 28px;flex-wrap:wrap}
.wordmark{font:600 15px/1 "Source Serif 4",Georgia,serif;letter-spacing:-.01em;
  color:var(--ink);text-decoration:none;white-space:nowrap}
.wordmark span{color:var(--accent)}
.bar nav{display:flex;gap:18px;font-size:14px;margin-left:auto;flex-wrap:wrap}
.bar nav a{color:var(--muted);text-decoration:none}
.bar nav a:hover,.bar nav a[aria-current=page]{color:var(--ink)}
main{max-width:1100px;margin:0 auto;padding:36px 24px 72px}
/* The narrow column IS the reading measure: paragraphs inside it carry no
   second limit of their own, because a ch-based cap lands short of the column
   and reads as a broken right edge. Lines run long at this width, so prose
   here gets extra leading, which is what keeps a long line trackable. */
main.narrow{max-width:720px}
main.narrow p,main.narrow .lede,main.narrow ul,main.narrow ol{max-width:none}
main.narrow p,main.narrow li{line-height:1.68}
footer{border-top:1px solid var(--rule);margin-top:48px}
footer .bar-in{display:block;color:var(--muted);font-size:13.5px;padding:20px 24px 40px}
footer p{margin:0 0 6px;max-width:75ch}

/* ------------------------------------------------------------- typography */
h1{font:600 clamp(26px,3.4vw,36px)/1.15 "Source Serif 4",Georgia,serif;
  margin:0 0 8px;letter-spacing:-.01em;text-wrap:balance}
h2{font:600 21px/1.25 "Source Serif 4",Georgia,serif;margin:36px 0 12px;text-wrap:balance}
h3{font:600 15px/1.3 "Source Sans 3",sans-serif;margin:24px 0 8px}
p{margin:0 0 14px;max-width:72ch}
.lede{font-size:17.5px;color:var(--muted);max-width:66ch}
.eyebrow{font:600 11.5px/1 "Source Sans 3",sans-serif;letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent);margin:0 0 10px}
.sub{color:var(--muted);font-size:15px;margin:0 0 4px}
.mono{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace}
code{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-size:.88em;
  background:var(--sunk);padding:1px 5px;border-radius:3px}
.nums{font-variant-numeric:tabular-nums}

/* ----------------------------------------------------------------- search */
.search{position:relative;flex:1 1 260px;max-width:420px}
.search input{width:100%;padding:8px 12px;font:15px/1.3 "Source Sans 3",sans-serif;
  color:var(--ink);background:var(--bg);border:1px solid var(--rule);border-radius:5px}
.search input::placeholder{color:var(--muted)}
.hero-search{max-width:none;flex:none;margin:0 0 8px}
.hero-search input{padding:13px 16px;font-size:17px;background:var(--surface)}
.results{position:absolute;z-index:20;left:0;right:0;top:calc(100% + 5px);
  background:var(--surface);border:1px solid var(--rule);border-radius:6px;
  box-shadow:0 10px 28px rgba(16,24,32,.14);max-height:min(60vh,420px);overflow-y:auto}
.results:empty,.results[hidden]{display:none}
.results a{display:flex;justify-content:space-between;gap:14px;padding:9px 13px;
  text-decoration:none;color:var(--ink);border-bottom:1px solid var(--rule-soft);font-size:14.5px}
.results a:last-child{border-bottom:0}
.results a:hover,.results a.on{background:var(--accent-soft)}
.results .where{color:var(--muted);font-size:13px;text-align:right;flex:0 1 auto}
.results .none{padding:10px 13px;color:var(--muted);font-size:14px}

/* ------------------------------------------------------------------ tiles */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(142px,1fr));
  gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:5px;
  overflow:hidden;margin:0 0 26px}
.tile{background:var(--surface);padding:13px 15px}
.tile .n{font:500 26px/1.05 "Source Serif 4",Georgia,serif;font-variant-numeric:tabular-nums;
  display:block;margin-bottom:5px}
.tile .n small{font-size:14px;color:var(--muted);font-family:"Source Sans 3",sans-serif}
.tile .l{font-size:12.5px;color:var(--muted);line-height:1.35}

/* ------------------------------------------------------------------ table */
.tw{overflow-x:auto;border:1px solid var(--rule);border-radius:5px;background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:14.5px;font-variant-numeric:tabular-nums}
th,td{text-align:left;padding:9px 13px;border-bottom:1px solid var(--rule-soft);
  vertical-align:baseline;white-space:nowrap}
th{font:600 11.5px/1.3 "Source Sans 3",sans-serif;letter-spacing:.07em;text-transform:uppercase;
  color:var(--muted);border-bottom:1px solid var(--rule);position:sticky;top:0;
  background:var(--surface);z-index:1}
th[role=button]{cursor:pointer;user-select:none}
th[role=button]::after{content:"";opacity:.45;margin-left:5px}
th[aria-sort=ascending]::after{content:"\2191";opacity:1}
th[aria-sort=descending]::after{content:"\2193";opacity:1}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:var(--sunk)}
td.n,th.n{text-align:right}
td.name{white-space:normal;min-width:11rem}
.rank{color:var(--muted);font-size:13px}

/* -------------------------------------------------------------------- beta */
.beta{background:var(--amber-soft);border:1px solid var(--amber);border-left-width:4px;
  border-radius:4px;padding:15px 18px;margin:0 0 30px;max-width:none}
.beta h2{font:600 12px/1 "Source Sans 3",sans-serif;letter-spacing:.14em;text-transform:uppercase;
  color:var(--amber);margin:0 0 9px}
.beta p{margin:0 0 8px;font-size:15px;max-width:none}
.beta p:last-child{margin:0}
.beta a{color:var(--amber);font-weight:600}
.tag{display:inline-block;font:600 9.5px/1 "Source Sans 3",sans-serif;letter-spacing:.1em;
  text-transform:uppercase;padding:3px 5px;border-radius:2px;background:var(--amber-soft);
  color:var(--amber);vertical-align:2px;margin-left:7px}

/* ------------------------------------------------------------------ badges */
.pill{display:inline-block;font:600 10.5px/1 "Source Sans 3",sans-serif;letter-spacing:.07em;
  text-transform:uppercase;padding:4px 7px;border-radius:3px;vertical-align:2px;white-space:nowrap}
.pill-gs{background:var(--accent-soft);color:var(--accent-ink)}
.pill-oa{background:var(--amber-soft);color:var(--amber)}
.note{border-left:3px solid var(--amber);background:var(--amber-soft);padding:11px 15px;
  margin:0 0 20px;font-size:14.5px;max-width:72ch;border-radius:0 3px 3px 0}
.note p{margin:0}
.note a{color:var(--amber)}

/* ----------------------------------------------------------- person sheet */
.sheet{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,300px);gap:40px;align-items:start}
@media (max-width:820px){.sheet{grid-template-columns:minmax(0,1fr);gap:28px}}
.metric{display:flex;flex-wrap:wrap;gap:8px 32px;align-items:flex-end;margin:0 0 6px}
.metric .big{font:500 44px/1 "Source Serif 4",Georgia,serif;font-variant-numeric:tabular-nums}
.metric .side{font-size:14px;color:var(--muted);padding-bottom:5px}
.metric .side b{color:var(--ink);font-weight:600;font-size:17px}
.pct{margin:18px 0 0;max-width:430px}
.pct-row{display:grid;grid-template-columns:8.5rem 1fr 3.2rem;gap:10px;align-items:center;
  margin-bottom:7px;font-size:13.5px}
.pct-row .lab{color:var(--muted)}
.pct-track{display:block;height:7px;background:var(--sunk);border-radius:4px;overflow:hidden}
.pct-fill{display:block;height:7px;background:var(--bar);border-radius:4px}
.pct-fill.hi{background:var(--accent)}
.pct-row .v{text-align:right;font-variant-numeric:tabular-nums}
dl.facts{margin:0;display:grid;grid-template-columns:auto 1fr;gap:5px 14px;font-size:14.5px}
dl.facts dt{color:var(--muted)}
dl.facts dd{margin:0}
.links{list-style:none;padding:0;margin:14px 0 0;font-size:14.5px}
.links li{margin-bottom:5px}
.card{background:var(--surface);border:1px solid var(--rule);border-radius:5px;padding:16px 18px}
.card h3{margin-top:0}
.spark{margin:22px 0 0;max-width:330px}
.spark svg{display:block;width:100%;height:auto;color:var(--ink)}
.spark figcaption{font-size:13px;color:var(--muted);margin-top:7px}

/* ------------------------------------------------------------------- misc */
.controls{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;margin:0 0 16px;font-size:14px}
.controls label{color:var(--muted);display:flex;align-items:center;gap:6px}
.controls select{font:14px "Source Sans 3",sans-serif;color:var(--ink);background:var(--surface);
  border:1px solid var(--rule);border-radius:4px;padding:5px 8px}
.cols{columns:2 16rem;column-gap:32px;font-size:14.5px}
.cols a{display:block;margin-bottom:5px;break-inside:avoid}
.count{color:var(--muted);font-size:14px;margin:0 0 14px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* homepage: status strip, source mix, two/three-column lists, folds */
.status{margin:26px 0 6px}
.status .mix{display:flex;height:8px;border-radius:4px;overflow:hidden;margin:14px 0 8px;background:var(--sunk)}
.seg.gs,.k.gs{background:var(--accent)}.seg.oa,.k.oa{background:var(--amber)}.seg.pop,.k.pop{background:var(--muted);opacity:.55}
.mixkey{margin:0!important;font-size:13px}.k{display:inline-block;width:9px;height:9px;border-radius:2px;margin:0 5px 0 0;vertical-align:baseline}
.cols2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.col h3{font-size:15px;margin:0 0 8px;font-weight:600;color:var(--ink)}
.count{display:inline-block;margin-left:6px;padding:0 7px;border-radius:9px;background:var(--sunk);color:var(--muted);font-size:12.5px;font-weight:600;vertical-align:2px}
ul.plain{list-style:none;margin:0;padding:0}ul.plain li{padding:7px 0;border-top:1px solid var(--rule-soft);line-height:1.35}
ul.plain li:first-child{border-top:0}
.d{display:block;font-size:13px;color:var(--muted)}.d b{color:var(--ink);font-weight:600}
.when{float:right;font-size:12.5px;color:var(--muted)}
ul.plain.two{columns:2;column-gap:26px}ul.plain.two li{break-inside:avoid}
details.fold{border:1px solid var(--rule);border-radius:8px;padding:0 16px;margin:10px 0;background:var(--surface)}
details.fold summary{cursor:pointer;padding:11px 0;font-weight:600;list-style:none;color:var(--ink)}details.fold summary::-webkit-details-marker{display:none}
details.fold summary::before{content:"\25B8";display:inline-block;width:16px;color:var(--muted)}details.fold[open] summary::before{content:"\25BE"}
details.fold[open]{padding-bottom:12px}
@media(max-width:720px){.cols2{grid-template-columns:1fr}ul.plain.two{columns:1}}

/* footer donate line: quiet, one small button */
footer p.donate{margin-top:14px;padding-top:12px;border-top:1px solid var(--rule-soft)}
.btn{display:inline-block;margin-left:6px;padding:4px 11px;border-radius:999px;border:1px solid var(--accent);
  color:var(--accent);font:600 12.5px/1.4 "Source Sans 3",sans-serif;text-decoration:none;vertical-align:baseline}
.btn:hover{background:var(--accent);color:var(--bg)}