body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: white;
}

header {
  display: flex;
  justify-content: space-between;
  padding: 20px;
  background: #020617;
}

.hero {
  text-align: center;
  padding: 80px 20px;
  animation: fadeIn 1.5s ease;
}

.cards {
  display: flex;
  gap: 20px;
  padding: 20px;
  justify-content: center;
}

.card {
  background: #1e293b;
  padding: 20px;
  border-radius: 10px;
  transition: 0.3s;
}

.card:hover {
  transform: scale(1.1);
  background: #334155;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(40px);}
  to { opacity: 1; transform: translateY(0);}
}