:root{
  --bg:#ffffff; --fg:#14171f; --muted:#6b7280; --line:#e6e8ec;
  --accent:#2f6df6; --card:#f7f8fa; --code:#0f1420; --codefg:#dbe3f4;
  --radius:14px; --wrap:1080px;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0e1116; --fg:#e8eaf0; --muted:#98a1b3; --line:#232834;
    --accent:#6f9bff; --card:#161b23; --code:#0a0d14; --codefg:#dbe3f4;
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--fg);
  font:16px/1.65 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
.wrap{max-width:var(--wrap); margin:0 auto; padding:0 16px}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}

.nav{border-bottom:1px solid var(--line); position:sticky; top:0; background:var(--bg); z-index:5}
.nav .wrap{display:flex; align-items:center; justify-content:space-between; height:62px; gap:16px}
.brand{display:flex; align-items:center; gap:8px; font-weight:650; color:var(--fg); letter-spacing:-.01em}
.brand .muted{color:var(--muted); font-weight:500}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);display:inline-block}
.nav nav{display:flex; gap:18px; font-size:15px}
.nav nav a{color:var(--muted)}
.nav nav a:hover{color:var(--fg); text-decoration:none}

.hero{padding:72px 16px 48px}
h1{font-size:clamp(30px,5vw,48px); line-height:1.12; margin:0 0 16px; letter-spacing:-.025em; font-weight:700}
h1 em{font-style:normal; color:var(--accent)}
.lead{font-size:18px; color:var(--muted); max-width:620px; margin:0 0 28px}
.cta{display:flex; gap:12px; flex-wrap:wrap}
.btn{display:inline-block; padding:11px 20px; border-radius:10px; background:var(--accent); color:#fff; font-weight:550}
.btn:hover{text-decoration:none; opacity:.92}
.btn.ghost{background:transparent; color:var(--fg); border:1px solid var(--line)}

.metrics{display:flex; gap:12px; flex-wrap:wrap; margin-top:44px}
.m{flex:1 1 180px; background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:18px}
.m b{display:block; font-size:26px; font-weight:680; letter-spacing:-.02em; font-variant-numeric:tabular-nums}
.m span{color:var(--muted); font-size:14px}

.feats{display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:16px; padding:28px 16px 8px}
.feats article{background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:22px}
.feats h3{margin:0 0 8px; font-size:17px; letter-spacing:-.01em}
.feats p{margin:0; color:var(--muted); font-size:15px}

.snippet{padding:40px 16px 64px}
.snippet h2{font-size:22px; letter-spacing:-.015em; margin:0 0 14px}
pre{background:var(--code); color:var(--codefg); padding:18px; border-radius:12px; overflow:auto; margin:0 0 12px}
code{font:14px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.small{color:var(--muted); font-size:14px; margin:0}
.small code{background:var(--card); padding:1px 6px; border-radius:6px; border:1px solid var(--line)}

table{border-collapse:collapse; width:100%; font-size:15px; margin:0 0 20px}
th,td{text-align:left; padding:10px 12px; border-bottom:1px solid var(--line)}
th{color:var(--muted); font-weight:550; font-size:13px; text-transform:uppercase; letter-spacing:.04em}

.doc{padding:40px 16px 72px; max-width:800px}
.doc h1{font-size:32px; margin-bottom:8px}
.doc h2{font-size:20px; margin:34px 0 10px; letter-spacing:-.015em}
.doc p{color:var(--muted)}
.doc li{color:var(--muted); margin:4px 0}

.badge{display:inline-flex; align-items:center; gap:7px; font-size:14px; color:var(--muted)}
.badge i{width:9px;height:9px;border-radius:50%;background:#22c55e;display:inline-block}
.badge.warn i{background:#f59e0b}

footer{border-top:1px solid var(--line); padding:26px 16px; color:var(--muted); font-size:14px; margin-top:20px}