:root{--bg:#fff;--fg:#16181d;--muted:#5b6070;--line:#e3e5ea;--accent:#12805c;--card:#f7f8fa}
@media (prefers-color-scheme:dark){:root{--bg:#0f1115;--fg:#e9ebf0;--muted:#9aa1b1;--line:#252a33;--accent:#3ddc97;--card:#161920}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);
 font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
 -webkit-text-size-adjust:100%}
.wrap{max-width:44rem;margin:0 auto;padding:2.5rem 1.25rem 5rem}
header{border-bottom:1px solid var(--line);padding-bottom:1.25rem;margin-bottom:2rem}
.brand{font-size:1.35rem;font-weight:700;letter-spacing:-.02em;text-decoration:none;color:var(--fg)}
.brand span{color:var(--accent)}
h1{font-size:1.9rem;line-height:1.2;letter-spacing:-.02em;margin:.4rem 0 .35rem}
h2{font-size:1.15rem;margin:2.25rem 0 .6rem;letter-spacing:-.01em}
h3{font-size:1rem;margin:1.4rem 0 .4rem}
p,li{color:var(--fg)}
.muted{color:var(--muted);font-size:.92rem}
a{color:var(--accent)}
ul{padding-left:1.15rem}
li{margin:.3rem 0}
table{width:100%;border-collapse:collapse;margin:.8rem 0;font-size:.93rem;display:block;overflow-x:auto}
th,td{text-align:left;padding:.55rem .7rem;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;white-space:nowrap}
.callout{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--accent);
 border-radius:.5rem;padding:.9rem 1rem;margin:1.25rem 0}
footer{margin-top:3.5rem;padding-top:1.25rem;border-top:1px solid var(--line);
 display:flex;gap:1.25rem;flex-wrap:wrap;font-size:.9rem}