:root{
  --bg:#F5F6F8; --surface:#FFFFFF; --surface-2:#EDEFF3; --ink:#131720; --ink-soft:#3A424F;
  --muted:#646E7D; --line:#DFE3EA; --signal:#C2431A; --focus:#1B44C8;
  --display:"IBM Plex Sans Condensed","Arial Narrow",Helvetica,sans-serif;
  --body:"IBM Plex Sans","Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
  --col:1080px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0E1116; --surface:#161A21; --surface-2:#1D222B; --ink:#E9ECF2; --ink-soft:#C3C9D4;
    --muted:#8E97A5; --line:#262C36; --signal:#FF7448; --focus:#7C97FF;
  }
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--col);margin:0 auto;padding:0 24px}
a{color:inherit}
a:focus-visible{outline:2px solid var(--focus);outline-offset:3px}
h1,h2,h3{font-family:var(--display);font-weight:600;letter-spacing:-.01em;margin:0}
h1{font-size:clamp(30px,5vw,44px);line-height:1.05}
h2{font-size:24px;margin-top:42px}
h3{font-size:19px;margin-top:28px}
p{margin:14px 0}
.topbar{border-bottom:1px solid var(--line);background:var(--surface)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:16px;padding-bottom:16px}
.mark{font-family:var(--display);font-size:18px;font-weight:700;letter-spacing:-.01em;text-decoration:none}
.mark span{color:var(--muted);font-weight:600}
.eyebrow{font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}
main{padding:56px 0 72px}
.doc{max-width:70ch}
.doc ul{padding-left:20px}
.doc li{margin:7px 0}
.tofill{background:var(--signal);color:#fff;padding:1px 7px;border-radius:2px;font-family:var(--mono);font-size:14px;white-space:nowrap}
.meta{font-family:var(--mono);font-size:13px;color:var(--muted);margin-top:40px;border-top:1px solid var(--line);padding-top:16px}
footer{border-top:1px solid var(--line);background:var(--surface);padding:26px 0;font-size:14px;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}