body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: radial-gradient(circle at top, #1e293b, #020617);
  color: #e2e8f0;
}

header {
  display: flex;
  justify-content: space-between;
  padding: 20px 40px;
  position: sticky;
  top: 0;
  background: rgba(2,6,23,0.8);
}

nav a {
  margin-left: 20px;
  color: #94a3b8;
  text-decoration: none;
}

.hero {
  height: 100vh;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  text-align:center;
}

.hero h2 {
  font-size: 50px;
  background: linear-gradient(90deg,#22c55e,#38bdf8);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
}

.btn {
  margin-top:20px;
  padding:12px 24px;
  background:#22c55e;
  border:none;
  border-radius:8px;
  color:white;
  cursor:pointer;
}

section {
  padding:80px 40px;
  max-width:1000px;
  margin:auto;
}

.cards {
  display:grid;
  gap:20px;
}

.card {
  background:#1e293b;
  padding:20px;
  border-radius:12px;
}

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

.fade-in {
  opacity:0;
  transform:translateY(20px);
  transition:0.6s;
}

.fade-in.visible {
  opacity:1;
  transform:translateY(0);
}