:root{
  --bg:#0b0f14;
  --card:#111827;
  --text:#e5e7eb;
  --muted:#9ca3af;
  --line:#1f2937;
  --link:#93c5fd;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: linear-gradient(180deg, #070a0f 0%, #0b0f14 60%, #070a0f 100%);
  color:var(--text);
}

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

.top{
  padding:18px 18px 10px;
  border-bottom:1px solid var(--line);
  display:flex;
  gap:18px;
  align-items:flex-end;
  justify-content:space-between;
  flex-wrap:wrap;
}

.brand .title{
  font-size:18px;
  font-weight:700;
  letter-spacing:.2px;
}
.brand .sub{
  margin-top:6px;
  color:var(--muted);
  font-size:13px;
  max-width:900px;
}

.nav{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  font-size:14px;
}

.container{
  max-width:1100px;
  margin:0 auto;
  padding:26px 18px 42px;
}

.hero{
  padding:22px;
  border:1px solid var(--line);
  border-radius:14px;
  background: rgba(17,24,39,.55);
}
.hero h1{
  margin:0 0 10px;
  font-size:28px;
}
.hero p{
  margin:0;
  color:var(--muted);
  line-height:1.6;
  max-width:900px;
}

.cta{
  margin-top:16px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

.btn{
  display:inline-block;
  padding:10px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#0f172a;
  color:var(--text);
}
.btn:hover{ text-decoration:none; border-color:#334155 }
.btn.ghost{ background:transparent }

.grid{
  margin-top:18px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
}

.card{
  padding:16px;
  border:1px solid var(--line);
  border-radius:14px;
  background: rgba(17,24,39,.35);
}
.card h2{
  margin:0 0 10px;
  font-size:16px;
}
.card p, .card li{
  color:var(--muted);
  line-height:1.6;
  font-size:14px;
}

.notice{
  margin-top:14px;
  padding:14px 16px;
  border:1px dashed #334155;
  border-radius:14px;
  color:var(--muted);
  background: rgba(2,6,23,.35);
  font-size:13px;
  line-height:1.6;
}

.footer{
  padding:18px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
  display:flex;
  gap:10px;
  justify-content:space-between;
  flex-wrap:wrap;
}

@media (max-width: 900px){
  .grid{ grid-template-columns:1fr; }
  .hero h1{ font-size:22px; }
}