:root{
  --bg:#0b0e12;
  --card:#111723;
  --text:#e7eefc;
  --muted:#a7b3c9;
  --link:#7dd3fc;
  --accent:#a3e635;
  --border:#1f2a3b;
  --shadow: 0 12px 40px rgba(0,0,0,.35);
  --max: 1020px;
  --radius: 16px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(180deg,#070a0f 0%, #0b0e12 30%, #0b0e12 100%);color:var(--text);font-family:var(--font);line-height:1.55}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
header{
  position:sticky; top:0; z-index:10;
  backdrop-filter: blur(10px);
  background:rgba(11,14,18,.75);
  border-bottom:1px solid var(--border);
}
.wrap{max-width:var(--max);margin:0 auto;padding:16px 20px}
.nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px}
.logo{
  width:34px;height:34px;border-radius:10px;
  background:radial-gradient(circle at 30% 30%, var(--accent), rgba(163,230,53,.1) 55%, rgba(125,211,252,.08) 100%);
  box-shadow: 0 10px 25px rgba(163,230,53,.12);
  border:1px solid rgba(163,230,53,.25);
}
.brand b{letter-spacing:.2px}
.pills{display:flex;gap:8px;flex-wrap:wrap;margin-left:auto}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 10px;border-radius:999px;
  border:1px solid var(--border);
  background:rgba(17,23,35,.65);
  color:var(--text); font-size:14px;
}
.pill .dot{width:8px;height:8px;border-radius:99px;background:var(--accent)}
main{padding:22px 0 42px}
.hero{
  padding:18px 0 8px;
}
.hero h1{font-size:40px;margin:10px 0 10px;line-height:1.15}
.hero p{max-width:78ch;color:var(--muted);font-size:18px;margin:0}
.grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;margin-top:18px}
@media (max-width: 920px){.grid{grid-template-columns:1fr}}
.card{
  background:rgba(17,23,35,.6);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow: var(--shadow);
  padding:18px;
}
.card h2{margin:0 0 10px;font-size:20px}
.card p{margin:0 0 10px;color:var(--muted)}
.kbd{
  display:inline-flex;align-items:center;
  padding:3px 8px;border-radius:9px;
  border:1px solid var(--border);
  background:rgba(7,10,15,.7);
  font-size:13px;color:var(--muted)
}
.list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:10px}
@media (max-width: 720px){.list{grid-template-columns:1fr}}
.item{
  padding:14px;border-radius:14px;
  border:1px solid var(--border);
  background:rgba(7,10,15,.45)
}
.item b{display:block;margin-bottom:4px}
.item small{color:var(--muted)}
.breadcrumb{font-size:13px;color:var(--muted);margin:6px 0 12px}
.breadcrumb a{color:var(--muted)}
.article h1{font-size:34px;line-height:1.18;margin:8px 0 12px}
.article h2{margin:26px 0 10px;font-size:22px}
.article h3{margin:18px 0 8px;font-size:18px}
.article p{max-width:80ch;color:var(--text);margin:0 0 14px}
.article ul{max-width:80ch;margin:0 0 14px;padding-left:20px}
.article li{margin:6px 0;color:var(--text)}
.note{
  border-left:4px solid var(--accent);
  padding:12px 14px;border-radius:12px;
  background:rgba(163,230,53,.08);
  border:1px solid rgba(163,230,53,.18);
  max-width:85ch;margin:14px 0;
}
.note p{margin:0;color:var(--muted)}
.refs ol{max-width:95ch}
.refs li{margin:8px 0;color:var(--muted)}
.footer{
  border-top:1px solid var(--border);
  padding:18px 0 28px;color:var(--muted);font-size:14px
}
.footer a{color:var(--muted)}
hr{border:none;border-top:1px solid var(--border);margin:18px 0}