:root{
  --bg1:#f6f7fb;
  --bg2:#edf0ff;
  --card:rgba(255,255,255,.78);
  --border:rgba(20,20,30,.10);
  --text:#0f1222;
  --muted:rgba(15,18,34,.65);
  --link:#0a84ff;
  --shadow:0 10px 30px rgba(0,0,0,.08);
  --radius:18px;
  --maxw:960px;
}

@media (prefers-color-scheme: dark){
  :root{
    --bg1:#0b0d16;
    --bg2:#101435;
    --card:rgba(18,20,35,.78);
    --border:rgba(255,255,255,.10);
    --text:#eef0ff;
    --muted:rgba(238,240,255,.68);
    --link:#67b0ff;
    --shadow:0 10px 35px rgba(0,0,0,.35);
  }
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display",Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 700px at 20% 90%, rgba(120,190,255,.25), transparent 55%),
    radial-gradient(1200px 700px at 85% 20%, rgba(170,140,255,.22), transparent 55%),
    linear-gradient(135deg,var(--bg1),var(--bg2));
}

a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}

.wrap{
  max-width:var(--maxw);
  margin:0 auto;
  padding:28px 18px 40px;
}

.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-bottom:18px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  letter-spacing:.2px;
}

.pill{
  padding:6px 10px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid var(--border);
  color:var(--muted);
  font-size:13px;
}

.nav{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

.nav a{
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.10);
  color:var(--text);
  font-size:14px;
}

.nav a.active{
  background:rgba(10,132,255,.18);
  border-color:rgba(10,132,255,.35);
}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px 18px;
  box-shadow:var(--shadow);
  backdrop-filter:saturate(160%) blur(18px);
}

.grid{
  display:grid;
  grid-template-columns:1.4fr .9fr;
  gap:16px;
}
@media (max-width:900px){
  .grid{grid-template-columns:1fr}
}

h1{
  margin:6px 0 10px;
  font-size:34px;
  line-height:1.15;
  letter-spacing:-.4px;
}
h2{
  margin:0 0 10px;
  font-size:18px;
  letter-spacing:-.1px;
}
p{margin:10px 0;color:var(--muted);line-height:1.55}
ul{margin:10px 0 0 20px;color:var(--muted);line-height:1.55}
li{margin:6px 0}

.cta{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:14px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.10);
  color:var(--text);
  font-weight:600;
  font-size:14px;
}
.btn.primary{
  background:rgba(10,132,255,.20);
  border-color:rgba(10,132,255,.35);
}

.meta{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:12px;
}

.footer{
  margin-top:18px;
  font-size:12px;
  color:var(--muted);
}
.footer a{color:var(--muted)}

code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;
  font-size:12px;
  padding:2px 6px;
  border-radius:8px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.10);
}