:root{
  --paper:#F5F6F3; --ink:#12141A; --muted:#5C6472;
  --line:#D6DCE6; --line-strong:#B7C0D2; --blue:#1B34DB; --red:#F5372A;
  --sans:"Helvetica Neue",Helvetica,Arial,"Inter",system-ui,sans-serif;
  --mono:"SF Mono","JetBrains Mono",ui-monospace,"Menlo",monospace;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;}
.doc-top{border-bottom:1px solid var(--line-strong);}
.doc-top .inner{max-width:820px;margin:0 auto;padding:20px clamp(20px,4vw,40px);
  display:flex;align-items:center;justify-content:space-between;gap:16px;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);}
.brand .mono{width:28px;height:28px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:700;font-size:12px;}
.brand b{font-weight:600;font-size:13px;}
.back{color:var(--ink);text-decoration:none;font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap;}
.back:hover{color:var(--blue);}
.doc{max-width:820px;margin:0 auto;padding:clamp(32px,6vh,64px) clamp(20px,4vw,40px) 72px;}
.kicker{font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin:0 0 14px;}
.doc h1{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:700;letter-spacing:-.02em;line-height:1.1;margin:0 0 10px;max-width:22ch;}
.doc .meta{font-family:var(--mono);font-size:12px;color:var(--muted);margin:0 0 40px;}
.doc h2{font-size:1.15rem;font-weight:600;margin:36px 0 12px;letter-spacing:-.01em;}
.doc p,.doc li{font-size:1rem;line-height:1.65;color:#2b2f38;}
.doc p{margin:0 0 14px;}
.doc ul{margin:0 0 14px;padding-left:22px;}
.doc li{margin:0 0 8px;}
.doc a{color:var(--blue);}
.fill{color:var(--red);border-bottom:1px dashed var(--red);}
.doc-foot{max-width:820px;margin:0 auto;padding:24px clamp(20px,4vw,40px) 48px;border-top:1px solid var(--line);
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);}