:root{
  --bg:#070b18;
  --card:#0b1230;
  --card2:#0c1638;
  --text:#e9eeff;
  --muted:#aeb9e6;
  --accent:#54d6ff;
  --accent2:#7c5cff;
  --border:rgba(255,255,255,.10);
  --shadow:0 12px 40px rgba(0,0,0,.35);
  --radius:18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 30% 10%, rgba(124,92,255,.22), transparent 60%),
              radial-gradient(1000px 700px at 85% 35%, rgba(84,214,255,.16), transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.55;
}

a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
code{
  background:rgba(255,255,255,.08);
  border:1px solid var(--border);
  padding:.15rem .35rem;
  border-radius:10px;
  font-size:.95em;
}

.container{
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 16px 64px;
}

.hero{
  padding: 22px 20px;
  background: linear-gradient(135deg, rgba(124,92,255,.18), rgba(84,214,255,.10));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero h1{
  margin: 0 0 6px;
  font-size: clamp(1.35rem, 2.5vw, 1.9rem);
  letter-spacing:.2px;
}
.hero p{margin: 8px 0 0; color: var(--muted)}
.hero .pillrow{margin-top:14px; display:flex; flex-wrap:wrap; gap:10px}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background: rgba(0,0,0,.18);
  color: var(--text);
  font-size: .92rem;
  white-space:nowrap;
}

.grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 18px;
}

.card{
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px;
  box-shadow: var(--shadow);
}

.card h2{
  margin: 0 0 8px;
  font-size: 1.2rem;
}
.card h3{
  margin: 18px 0 8px;
  font-size: 1.05rem;
}
.card p{margin: 8px 0; color: var(--muted)}
.card ul{margin: 10px 0 0 18px; color: var(--muted)}
.card li{margin: 6px 0}
.card .note{
  margin-top:12px;
  padding: 12px 12px;
  border-radius: 14px;
  border:1px dashed rgba(255,255,255,.18);
  background: rgba(0,0,0,.14);
  color: var(--muted);
}

.toc{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top: 14px;
}
.toc a{
  display:inline-flex;
  align-items:center;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background: rgba(0,0,0,.18);
  color: var(--text);
  font-size: .92rem;
}

.kbd{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width: 1.6em;
  padding: .15rem .45rem;
  border-radius: 10px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.06);
  font-size:.92em;
}

hr{
  border:0;
  height:1px;
  background: rgba(255,255,255,.10);
  margin: 18px 0;
}

footer{
  margin-top: 18px;
  color: rgba(233,238,255,.72);
  font-size:.92rem;
  text-align:center;
}

.small{font-size:.93rem}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(84,214,255,.35);
  background: rgba(84,214,255,.08);
  color: var(--text);
  font-size:.9rem;
}

@media (max-width: 560px){
  .hero{padding: 18px 16px}
  .card{padding: 16px 14px}
  .pill{white-space:normal}
}