:root{
  --bg:#0d1117; --panel:#131a24; --panel2:#161b22; --border:#2a3038;
  --text:#e6edf3; --muted:#9aa4b2; --green:#39d353; --purple:#a371f7;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:var(--green);text-decoration:none}
a:hover{text-decoration:underline}
code,kbd,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
code{background:var(--panel2);border:1px solid var(--border);border-radius:5px;padding:1px 6px;font-size:.9em}
.wrap{max-width:900px;margin:0 auto;padding:0 20px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

/* ---- top nav ---- */
.nav{position:sticky;top:0;z-index:20;background:rgba(13,17,23,.85);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border)}
.nav .wrap{display:flex;align-items:center;gap:8px;height:56px}
.nav .brand{font-weight:700;font-size:16px;margin-right:auto;color:var(--text)}
.nav .brand .a{color:var(--green)}
.nav a.link{color:var(--muted);font-size:14px;padding:6px 10px;border-radius:7px}
.nav a.link:hover{color:var(--text);background:var(--panel2);text-decoration:none}
.nav a.link.active{color:var(--text);background:var(--panel2)}
.nav a.gh{color:var(--text);border:1px solid var(--border);padding:6px 12px;border-radius:7px;font-size:14px}
.nav a.gh:hover{border-color:var(--green);text-decoration:none}
@media(max-width:680px){.nav .wrap{flex-wrap:wrap;height:auto;padding-top:8px;padding-bottom:8px;gap:4px}
  .nav .brand{width:100%;margin-bottom:4px}}

/* ---- hero ---- */
header.hero{text-align:center;padding:70px 20px 40px;
  background:radial-gradient(60% 120% at 50% 0%, rgba(163,124,247,.12), transparent 60%),
             radial-gradient(50% 100% at 50% 0%, rgba(57,211,83,.10), transparent 60%)}
.mask{font-size:44px;line-height:1}
h1{font-size:44px;margin:.2em 0 .12em;letter-spacing:-.5px}
h1 .a{color:var(--green)}
.tagline{font-size:19px;margin:0 auto 6px;max-width:640px}
.sub{color:var(--muted);max-width:600px;margin:6px auto 24px}
.badges{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:26px}
.badge{font-size:12.5px;color:var(--muted);background:var(--panel2);border:1px solid var(--border);
  border-radius:999px;padding:5px 12px}
.badge b{color:var(--green)}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.cta.left{justify-content:flex-start}
.btn{display:inline-block;padding:11px 20px;border-radius:8px;font-weight:600;font-size:15px;border:1px solid var(--border)}
.btn.primary{background:var(--green);color:#08130a;border-color:var(--green)}
.btn.primary:hover{filter:brightness(1.08);text-decoration:none}
.btn.ghost{background:var(--panel2);color:var(--text)}
.btn.ghost:hover{border-color:var(--green);text-decoration:none}

/* ---- page content ---- */
.page{padding:44px 0 20px}
.page h1.title{font-size:32px;margin:0 0 6px}
.page .kicker{color:var(--purple);font-family:ui-monospace,monospace;font-size:13px;letter-spacing:.5px;margin:0 0 6px}
section{padding:34px 0;border-top:1px solid var(--border)}
section:first-of-type{border-top:0}
h2{font-size:23px;margin:0 0 6px}
h2 .hash{color:var(--purple)}
h3{font-size:16px}
.lead{color:var(--muted);margin:0 0 20px;max-width:720px}
p{max-width:760px}
ol,ul{max-width:760px;color:var(--text)}
li{margin:6px 0}

.demo{display:block;width:100%;max-width:820px;margin:6px auto 0;border-radius:10px}

.grid{display:grid;gap:12px}
.cols3{grid-template-columns:repeat(3,1fr)}
.cols2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px}
.card h3{margin:0 0 10px}
.card p{margin:0;color:var(--muted);font-size:14px}
.card .more{display:inline-block;margin-top:10px;font-size:14px}

.doms{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.chip{font-family:ui-monospace,monospace;font-size:13px;color:var(--text);
  background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:6px 11px}
.chip b{color:var(--purple)}
.chip .n{color:var(--muted)}

table{width:100%;border-collapse:collapse;margin:6px 0 4px;font-size:14px;display:block;overflow-x:auto}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--border);vertical-align:top}
th{color:var(--muted);font-weight:600;white-space:nowrap}
td code{white-space:nowrap}

pre{background:var(--panel2);border:1px solid var(--border);border-radius:10px;padding:14px 16px;
  overflow-x:auto;font-size:13px;color:var(--text);line-height:1.6}
pre .c{color:var(--muted)}

.step{display:flex;gap:14px;align-items:flex-start;margin:14px 0}
.step .num{flex:none;width:28px;height:28px;border-radius:50%;background:var(--panel2);border:1px solid var(--border);
  color:var(--green);font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center}
.step .body{flex:1}
.step .body p{margin:0 0 6px}

.warn{background:rgba(248,81,73,.08);border:1px solid rgba(248,81,73,.35);border-radius:10px;
  padding:14px 16px;color:#ffb4ae;font-size:14.5px}
.note{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:14px 16px;font-size:14.5px;color:var(--muted)}

.pager{display:flex;justify-content:space-between;gap:12px;margin-top:34px;flex-wrap:wrap}
.pager a{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:12px 16px;font-size:14px;color:var(--text)}
.pager a:hover{border-color:var(--green);text-decoration:none}
.pager .lbl{display:block;color:var(--muted);font-size:12px}

footer{padding:34px 0 56px;border-top:1px solid var(--border);color:var(--muted);text-align:center;font-size:14px}
@media(max-width:720px){.cols3,.cols2{grid-template-columns:1fr}h1{font-size:34px}}