/* Shared stylesheet for zhenhan.link project pages (congresschain, election, ...).
   Tokens and components follow zhenhan/ops/PLAYBOOK.md section 10; load with
   <link rel="stylesheet" href="https://zhenhan.link/project.css"> plus nav.js for the shared header. */
:root{
  color-scheme:light;
  --bg:#f7f5f0; --surface:#fcfcfb; --surface-2:#f0eee8; --ink:#16171c; --ink-2:#52514e; --muted:#7c7a73;
  --rule:#e2dfd6; --rule-2:#d2cec3; --brand:#1E2761; --brand-soft:#e6ecfa;
  --s1:#2a78d6; --s2:#eb6834; --s3:#1baf7a; --neg:#e34948; --mid:#f0efec;
  --good:#0ca30c; --warn:#fab219; --crit:#d03b3b;
  --shadow:0 1px 0 rgba(20,20,30,.04),0 12px 32px -18px rgba(20,24,60,.25);
  --display:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;
  --sans:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --ease:cubic-bezier(.2,.8,.2,1);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  color-scheme:dark;
  --bg:#111113; --surface:#1a1a19; --surface-2:#222220; --ink:#f0efec; --ink-2:#c3c2b7; --muted:#8f8d84;
  --rule:#2c2c2a; --rule-2:#3a3a37; --brand:#CADCFC; --brand-soft:#1d2236;
  --s1:#3987e5; --s2:#d95926; --s3:#199e70; --neg:#e66767; --mid:#383835;
  --shadow:0 1px 0 rgba(0,0,0,.4),0 16px 40px -20px rgba(0,0,0,.8);
}}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#111113; --surface:#1a1a19; --surface-2:#222220; --ink:#f0efec; --ink-2:#c3c2b7; --muted:#8f8d84;
  --rule:#2c2c2a; --rule-2:#3a3a37; --brand:#CADCFC; --brand-soft:#1d2236;
  --s1:#3987e5; --s2:#d95926; --s3:#199e70; --neg:#e66767; --mid:#383835;
  --shadow:0 1px 0 rgba(0,0,0,.4),0 16px 40px -20px rgba(0,0,0,.8);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
.wrap{max-width:1120px;margin:0 auto;padding:0 32px}
.eyebrow{font:500 12px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.hero{padding-top:88px;padding-bottom:24px}
.hero h1{font:650 clamp(52px,8.5vw,112px)/.96 var(--display);letter-spacing:-.038em;margin:18px 0 36px;text-wrap:balance}
.hero h1 em{font-style:italic;color:var(--brand)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}
.lede{font-size:clamp(18px,1.6vw,21px);line-height:1.55;color:var(--ink-2);max-width:34em;margin:0}
.lede b{color:var(--ink);font-weight:600}
.meta{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin:64px 0 0;padding-top:24px;border-top:1px solid var(--rule)}
.meta dt{font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.meta dd{margin:0;font-size:15px;line-height:1.5}
.card{background:var(--surface);border:1px solid var(--rule);border-radius:16px;padding:28px;box-shadow:var(--shadow);min-width:0}
.card h4{margin:0 0 4px;font-size:15px;font-weight:600}
.card .unit{font-size:13px;color:var(--muted)}
.card-head{display:flex;justify-content:space-between;gap:12px;align-items:baseline;margin-bottom:12px;flex-wrap:wrap}
section.chapter{padding-top:112px}
.chead{display:grid;grid-template-columns:120px minmax(0,1fr);gap:24px;margin-bottom:32px}
.num{font:500 12px var(--mono);color:var(--muted);padding-top:12px;border-top:1px solid var(--ink);align-self:start}
.chead h2{font:600 clamp(34px,4.4vw,54px)/1.08 var(--display);letter-spacing:-.032em;margin:0 0 12px}
.chead p{margin:0;color:var(--ink-2);max-width:40em}
.body{margin-left:144px;min-width:0}
.body p{color:var(--ink-2);max-width:40em}
.callout{padding:18px 22px;border-left:2px solid var(--brand);background:var(--brand-soft);border-radius:0 12px 12px 0;color:var(--ink-2)}
.seg{display:inline-flex;padding:3px;border-radius:10px;background:var(--surface-2);border:1px solid var(--rule)}
.seg button{border:0;background:transparent;color:var(--ink-2);font:500 13px var(--sans);padding:7px 14px;border-radius:7px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.12)}
.controls{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.tablewrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th{font:500 11px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);text-align:right;padding:0 12px 10px 0;border-bottom:1px solid var(--rule-2);white-space:nowrap}
td{padding:10px 12px 10px 0;border-bottom:1px solid var(--rule);font-variant-numeric:tabular-nums;text-align:right}
th:first-child,td:first-child{text-align:left}
code,.mono{font-family:var(--mono);font-size:.88em}
pre{background:var(--surface-2);border:1px solid var(--rule);border-radius:12px;padding:18px 20px;overflow-x:auto;font:400 13px/1.6 var(--mono);color:var(--ink)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;border:1px solid var(--rule-2);font-size:14px;font-weight:500;text-decoration:none;background:var(--surface)}
.btn:hover{background:var(--surface-2)}
.btn-main{background:var(--brand);border-color:var(--brand);color:var(--bg)}
.btn-main:hover{background:var(--brand);opacity:.88}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.tip{position:fixed;pointer-events:none;background:var(--surface);border:1px solid var(--rule-2);border-radius:10px;padding:10px 12px;font-size:13px;box-shadow:0 10px 30px -10px rgba(0,0,0,.35);z-index:50;opacity:0;transition:opacity .15s}
.chart{width:100%;height:320px;display:block;overflow:visible}
.chart text{font:12px var(--sans);fill:var(--muted)}
.chart .val{fill:var(--ink);font-weight:500;font-variant-numeric:tabular-nums}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);margin:8px 0 24px}
.stats div{padding:20px 16px 20px 0}
.stats b{display:block;font:600 48px/1 var(--display);letter-spacing:-.035em;font-variant-numeric:tabular-nums;margin-bottom:8px}
.stats span{font-size:14px;color:var(--ink-2)}
.grid2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px}
@media (max-width:760px){.grid2{grid-template-columns:1fr}.stats{grid-template-columns:1fr}.chart{height:260px}}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--ink-2);margin:0 0 8px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.foot{margin-top:120px;border-top:1px solid var(--rule)}
.foot .wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding-top:28px;padding-bottom:48px;font-size:13px;color:var(--muted)}
.foot a{color:var(--ink-2)}
.rv{opacity:0;transform:translateY(18px);transition:.8s var(--ease)}
.rv.in{opacity:1;transform:none}
@media (max-width:960px){.hero-grid{grid-template-columns:1fr}.meta{grid-template-columns:1fr 1fr}.chead{grid-template-columns:1fr}.body{margin-left:0}}
@media (max-width:640px){.wrap{padding:0 16px}.hero{padding-top:56px}section.chapter{padding-top:80px}.card{padding:20px}.meta{grid-template-columns:1fr}.foot .wrap{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.rv{opacity:1;transform:none}}