:root{--bg:#f3f5f6;--surface:#fff;--ink:#18242b;--muted:#5a6b74;--line:#d9e1e5;--accent:#0f6b6e;--accent-soft:#e1f0ef;--warn:#9a5b06;--warn-soft:#fbf0dc;
  --display:"Fraunces",Georgia,serif;--body:"Public Sans",system-ui,-apple-system,"Segoe UI",sans-serif;color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#11181c;--surface:#192329;--ink:#e4ecef;--muted:#93a5ad;--line:#2c3a41;--accent:#5fc2c0;--accent-soft:#1d3537;--warn:#f0b65c;--warn-soft:#3a2d17;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#11181c;--surface:#192329;--ink:#e4ecef;--muted:#93a5ad;--line:#2c3a41;--accent:#5fc2c0;--accent-soft:#1d3537;--warn:#f0b65c;--warn-soft:#3a2d17;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.65}
.wrap{max-width:780px;margin:0 auto;padding:0 max(16px,env(safe-area-inset-left,0px)) 64px}
nav{display:flex;align-items:center;gap:16px;padding:22px 0}
.brand{font-family:var(--display);font-weight:600;font-size:22px;color:var(--ink);text-decoration:none}
.brand b{color:var(--accent);font-weight:600}
nav .sp{flex:1}
nav a.lnk{color:var(--ink);text-decoration:none;font-size:15px;font-weight:500}
h1{font-family:var(--display);font-weight:600;font-size:clamp(30px,5vw,42px);line-height:1.15;margin:24px 0 6px}
.meta{color:var(--muted);font-size:14px;margin:0 0 24px}
h2{font-size:20px;margin:36px 0 8px}
h3{font-size:16px;margin:20px 0 4px}
p,li{margin:0 0 10px}
ul{padding-left:22px;margin:0 0 12px}
a{color:var(--accent)}
.draft{background:var(--warn-soft);color:var(--warn);border-radius:8px;padding:12px 16px;font-size:14px;margin:8px 0 0}
.box{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin:16px 0}
.caps{text-transform:uppercase;font-size:14px;letter-spacing:.01em}
table{border-collapse:collapse;width:100%;font-size:14px;margin:8px 0 16px}
th,td{border-bottom:1px solid var(--line);padding:8px 10px 8px 0;text-align:left;vertical-align:top}
th{color:var(--muted);font-weight:600}
.toc{columns:2;column-gap:24px;font-size:14px;padding-left:18px}
@media (max-width:600px){.toc{columns:1}}
footer{border-top:1px solid var(--line);margin-top:48px;padding-top:20px;color:var(--muted);font-size:14px;display:flex;flex-wrap:wrap;gap:8px 20px}
footer a{color:var(--muted)}
@media print{nav,.draft,footer{display:none}body{background:#fff;color:#000}}