:root{
  --primary:#0066cc;--primary-focus:#0071e3;--ink:#1d1d1f;--ink-muted-80:#333;--ink-muted-48:#6b6b6b;
  --canvas:#fff;--parchment:#f5f5f7;--hairline:#e0e0e0;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Inter",system-ui,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--canvas);
  font-size:17px;line-height:1.6;letter-spacing:-0.2px;-webkit-font-smoothing:antialiased;}
a{color:var(--primary);text-decoration:none;}
a:hover{text-decoration:underline;}
a:focus-visible{outline:2px solid var(--primary-focus);outline-offset:3px;border-radius:4px;}
.lnav{position:sticky;top:0;z-index:10;background:rgba(245,245,247,0.82);
  -webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(0,0,0,0.06);}
.lnav-in{max-width:760px;margin:0 auto;height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;}
.brand{display:flex;align-items:center;gap:9px;font-weight:600;font-size:20px;letter-spacing:-0.5px;color:var(--ink);}
.brand img{height:28px;width:28px;object-fit:contain;display:block;}
.back{font-size:14px;color:var(--primary);}
.wrap{max-width:760px;margin:0 auto;padding:56px 24px 80px;}
.eyebrow{font-size:14px;font-weight:600;color:var(--ink-muted-48);margin:0 0 10px;}
h1{font-size:40px;font-weight:600;line-height:1.1;letter-spacing:-0.6px;margin:0 0 10px;}
.updated{font-size:14px;color:var(--ink-muted-48);margin:0 0 40px;}
.intro{font-size:18px;color:var(--ink-muted-80);margin:0 0 36px;}
h2{font-size:22px;font-weight:600;letter-spacing:-0.4px;margin:38px 0 12px;}
p{margin:0 0 14px;color:var(--ink-muted-80);}
ul{margin:0 0 14px;padding-left:22px;color:var(--ink-muted-80);}
li{margin-bottom:8px;}
strong{color:var(--ink);font-weight:600;}
.lfoot{border-top:1px solid var(--hairline);background:var(--parchment);}
.lfoot-in{max-width:760px;margin:0 auto;padding:32px 24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-muted-48);}
.lfoot-in a{color:var(--ink-muted-48);}
.lfoot-in a:hover{color:var(--ink);}
.lfoot-links{display:flex;gap:20px;flex-wrap:wrap;}
@media (max-width:640px){
  body{font-size:16px;}
  h1{font-size:30px;}
  .wrap{padding:40px 20px 60px;}
  .lnav-in,.lfoot-in,.wrap{max-width:none;}
}