body {
  margin:0;
  font-family: Inter, Arial, sans-serif;
  background:#0b0f19;
  color:#e5e7eb;
}

header {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:20px 40px;
  border-bottom:1px solid #1f2937;
}

.logo {
  height:32px;
}

nav a {
  margin-left:20px;
  color:#9ca3af;
  text-decoration:none;
}

.hero {
  text-align:center;
  padding:100px 20px;
}

.hero h1 {
  font-size:64px;
  margin-bottom:10px;
}

.hero h2 {
  color:#22c55e;
}

.buttons {
  margin-top:30px;
}

.btn {
  padding:12px 22px;
  border-radius:8px;
  text-decoration:none;
  font-weight:bold;
  margin:8px;
  display:inline-block;
}

.primary {
  background:#22c55e;
  color:#000;
}

.secondary {
  border:1px solid #22c55e;
  color:#22c55e;
}

.section {
  padding:80px 40px;
  max-width:1100px;
  margin:auto;
}

.dark {
  background:#111827;
}

.grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:20px;
}

.card {
  background:#111827;
  padding:20px;
  border-radius:12px;
  border:1px solid #1f2937;
}

.small {
  background:#22c55e;
  color:#000;
  padding:8px 14px;
  font-size:14px;
}

footer {
  text-align:center;
  padding:40px;
  color:#6b7280;
}