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

.hero {
  text-align: center;
  padding: 100px 20px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  background: white;
  color: #2563eb;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
}

.categories {
  padding: 60px 20px;
  text-align: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  max-width: 900px;
  margin: 30px auto;
}

.card {
  background: #1e293b;
  padding: 30px;
  border-radius: 12px;
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-8px);
}

footer {
  text-align: center;
  padding: 20px;
  background: #020617;
}