:root{
  --bg:#0b1220;
  --card:#0f1b33;
  --text:#e7eefc;
  --muted:#b7c6ea;
  --accent:#7aa7ff;
  --border:rgba(255,255,255,.12);
}
*{box-sizing:border-box}
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(1000px 600px at 20% 0%, rgba(122,167,255,.18), transparent 60%),
              radial-gradient(900px 600px at 80% 20%, rgba(122,255,221,.10), transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.55;
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:980px; margin:0 auto; padding:28px 18px 56px}
.nav{
  display:flex; gap:14px; align-items:center; justify-content:space-between;
  padding:14px 16px; border:1px solid var(--border); border-radius:16px;
  background: rgba(15,27,51,.70); backdrop-filter: blur(8px);
}
.brand{display:flex; align-items:center; gap:10px; font-weight:700}
.badge{font-size:12px; color:var(--muted); border:1px solid var(--border); padding:2px 10px; border-radius:999px}
.navlinks{display:flex; flex-wrap:wrap; gap:12px; font-size:14px}
.hero{padding:34px 6px 10px}
h1{font-size:40px; line-height:1.1; margin:0 0 12px}
h2{font-size:24px; margin:26px 0 10px}
p{margin:0 0 12px; color:var(--text)}
.small{color:var(--muted); font-size:13px}
.grid{display:grid; gap:14px; grid-template-columns:repeat(12,1fr); margin-top:16px}
.card{
  grid-column: span 12;
  background: rgba(15,27,51,.68);
  border:1px solid var(--border);
  border-radius:18px;
  padding:16px 16px;
}
@media(min-width:820px){
  .card.half{grid-column:span 6}
}
.card h3{margin:0 0 8px; font-size:18px}
ul{margin:8px 0 0 18px; color:var(--text)}
li{margin:6px 0}
.footer{
  margin-top:26px;
  padding-top:18px;
  border-top:1px solid var(--border);
  color:var(--muted);
  font-size:13px;
  display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between; align-items:center;
}
.kbd{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 10px;
  color: var(--text);
}
.notice{
  border-left:3px solid var(--accent);
  padding:10px 12px;
  background: rgba(122,167,255,.10);
  border-radius: 12px;
}
label{display:block; margin:10px 0 6px; color:var(--muted); font-size:14px}
input{
  width:100%;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
}
button{
  margin-top:12px;
  border:1px solid var(--border);
  background: rgba(122,167,255,.18);
  color: var(--text);
  padding:10px 14px;
  border-radius:12px;
  cursor:pointer;
  font-weight:600;
}
button:hover{background: rgba(122,167,255,.26)}
.checkbox{display:flex; align-items:flex-start; gap:10px; margin-top:10px}
.checkbox input{width:auto; margin-top:3px}