:root{
  --bg0:#070813;
  --bg1:#0b0b11;
  --panel:rgba(255,255,255,.06);
  --panel2:rgba(255,255,255,.085);
  --line:rgba(255,255,255,.12);
  --text:#f4f6ff;
  --muted:rgba(244,246,255,.72);
  --muted2:rgba(244,246,255,.55);
  --accent:#8bf0c0;
  --accent2:#7db7ff;
  --danger:#ff6b6b;
  --shadow:0 20px 60px rgba(0,0,0,.45);
  --radius:16px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font:16px/1.65 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial;
  color:var(--text);
  background:
    radial-gradient(900px 600px at 10% 0%, rgba(125,183,255,.22), transparent 60%),
    radial-gradient(900px 600px at 90% 10%, rgba(139,240,192,.18), transparent 60%),
    radial-gradient(700px 500px at 50% 120%, rgba(200,120,255,.14), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}

.wrap{max-width:1040px;margin:0 auto;padding:26px 18px 80px}

/* Top bar */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:26px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.mark{
  width:34px;height:34px;border-radius:12px;
  background:linear-gradient(135deg, rgba(125,183,255,.95), rgba(139,240,192,.92));
  box-shadow:0 14px 40px rgba(0,0,0,.35);
}
.brand h1{font-size:18px;letter-spacing:.2px;margin:0}
.brand .sub{color:var(--muted2);font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:flex-end}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.045);
  padding:8px 12px;border-radius:999px;
  color:var(--muted);font-size:13px
}
.pill:hover{background:rgba(255,255,255,.07);text-decoration:none}

/* Hero */
.hero{border:1px solid var(--line);background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));border-radius:var(--radius);padding:18px 18px 16px;box-shadow:var(--shadow);margin-bottom:18px}
.hero .kicker{color:var(--muted2);font-size:12px;letter-spacing:.18em;text-transform:uppercase}
.hero h2{margin:8px 0 10px;font-size:28px;line-height:1.15}
.hero p{margin:0;color:var(--muted);max-width:78ch}
.hero .cta{margin-top:14px;display:flex;flex-wrap:wrap;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 14px;border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  color:var(--text);font-weight:600;font-size:13px;
  text-decoration:none
}
.btn.primary{border-color:rgba(125,183,255,.55);background:linear-gradient(135deg, rgba(125,183,255,.22), rgba(139,240,192,.16))}
.btn:hover{background:rgba(255,255,255,.09);text-decoration:none}

/* Cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.card{border:1px solid var(--line);background:rgba(255,255,255,.05);border-radius:var(--radius);padding:16px;box-shadow:0 10px 30px rgba(0,0,0,.22)}
.card h3{margin:0 0 6px;font-size:15px}
.card p{margin:0 0 10px;color:var(--muted)}
.card ul{margin:0;padding-left:18px;color:var(--muted)}

hr{border:0;border-top:1px solid var(--line);margin:22px 0}

.note{color:var(--muted2);font-size:12.5px}
.kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px;background:rgba(0,0,0,.25);border:1px solid var(--line);padding:2px 6px;border-radius:8px;color:var(--text)}

.article{border:1px solid var(--line);background:rgba(255,255,255,.05);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.article h2{margin:0 0 10px;font-size:20px}
.article h3{margin:18px 0 8px;font-size:16px}
.article p{margin:0 0 12px;color:var(--muted)}
.article ul{margin:0 0 12px;padding-left:18px;color:var(--muted)}

.footer{margin-top:28px;color:var(--muted2);font-size:12px}

@media (max-width:520px){
  .hero h2{font-size:24px}
  .pill{padding:7px 10px}
}