:root{
  --bg:#ffffff;
  --panel:#ffffff;
  --soft:#f6f7f9;
  --line:#e7e9ee;
  --text:#14161a;
  --muted:#636b78;
  --accent:#111111;
  --max:1080px;
  --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(100% - 32px,var(--max));margin:0 auto}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700}
.brand-mark{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:#111;color:#fff;font-size:14px;font-weight:800}
.brand small{display:block;color:var(--muted);font-weight:500}
.nav-links{display:flex;flex-wrap:wrap;gap:8px}
.nav-links a{padding:8px 10px;border-radius:10px;color:var(--muted)}
.nav-links a:hover,.nav-links a.active{background:var(--soft);color:var(--text);text-decoration:none}
.hero,.page-hero{padding:44px 0 18px}
.kicker{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.pill{display:inline-block;padding:6px 10px;border:1px solid var(--line);border-radius:999px;background:var(--soft);color:var(--muted);font-size:12px;margin-bottom:14px}
h1,h2,h3{line-height:1.12;margin:0 0 12px}
h1{font-size:clamp(2.2rem,5vw,3.9rem);letter-spacing:-.04em}
h2{font-size:clamp(1.5rem,3vw,2.2rem);letter-spacing:-.03em}
h3{font-size:1.05rem}
p{margin:0 0 14px;color:var(--muted)}
section{padding:20px 0}
.grid-2,.grid-3,.grid-4{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card,.hero-card,.code{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}
.card,.hero-card{padding:20px}
.hero-card{padding:26px}
.code{overflow:hidden}
.code-head{padding:12px 16px;border-bottom:1px solid var(--line);background:var(--soft);color:var(--muted);font-size:.92rem;display:flex;justify-content:space-between;gap:16px}
pre{margin:0;padding:18px;overflow:auto;background:#fcfcfd}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.91rem;color:#1c2230}
.metric{padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--soft)}
.metric strong{display:block;margin-bottom:6px}
.metric span{font-size:.95rem;color:var(--muted)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.button{display:inline-flex;align-items:center;gap:8px;padding:11px 15px;border-radius:12px;border:1px solid var(--line);font-weight:600}
.button.primary{background:#111;color:#fff;border-color:#111}
.button.secondary{background:var(--soft);color:var(--text)}
ul.clean{margin:0;padding-left:18px;color:var(--muted)}
ul.clean li{margin:8px 0}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{width:100%;min-width:780px;border-collapse:collapse}
th,td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:var(--soft);font-size:.94rem}
td{color:var(--muted)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:14px}
.badge{display:inline-block;padding:6px 9px;border-radius:999px;border:1px solid var(--line);background:var(--soft);color:var(--muted);font-size:12px;margin-right:8px;margin-bottom:8px}
.breadcrumbs{font-size:.94rem;color:var(--muted);margin-bottom:12px}
.toc{display:grid;gap:10px}
.toc a{display:block;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--text)}
.toc a small{display:block;color:var(--muted);margin-top:4px}
.note{padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--soft);color:var(--text)}
.footer{padding:36px 0 58px}
.small{font-size:.94rem}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
@media (max-width:960px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.nav{align-items:flex-start;padding:12px 0}.section-head{align-items:flex-start;flex-direction:column}}