:root{--bg:#f6f7f9;--surface:#fff;--text:#14171f;--muted:#4a5262;--line:#dde1e8;--accent:#0a45cf}
@media (prefers-color-scheme:dark){:root{--bg:#0e1015;--surface:#161a22;--text:#f1f3f7;--muted:#b6bdcb;--line:#2a303c;--accent:#7fa6ff}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif}
main{max-width:720px;margin:0 auto;padding:32px 16px 64px}
header.site{border-bottom:1px solid var(--line);background:var(--surface)}
header.site div{max-width:720px;margin:0 auto;padding:16px;display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}
header.site a.brand{font-weight:700;color:var(--text);text-decoration:none}
header.site nav a{margin-left:16px;color:var(--accent);text-decoration:none}
h1{font-size:2rem;line-height:1.2;margin:0 0 8px;overflow-wrap:anywhere}
h2{font-size:1.2rem;margin:32px 0 8px}
p,li{color:var(--text);overflow-wrap:anywhere}
.meta{color:var(--muted);margin:0 0 24px}
a{color:var(--accent)}
a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
table{width:100%;border-collapse:collapse;margin:8px 0 16px;font-size:.95rem}
th,td{border:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}
th{background:var(--surface)}
.wrap{overflow-x:auto}
footer{max-width:720px;margin:0 auto;padding:0 16px 32px;color:var(--muted);font-size:.9rem}