body {
  margin: 0;
  font-family: Arial, sans-serif;
}

header {
  background: #111827;
  color: white;
  padding: 15px;
  display: flex;
  justify-content: space-between;
}

nav a {
  color: white;
  margin-left: 15px;
  text-decoration: none;
}

.hero {
  text-align: center;
  padding: 60px;
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  color: white;
}

button {
  padding: 10px 20px;
  border: none;
  background: white;
  cursor: pointer;
  border-radius: 5px;
}

footer {
  background: #111827;
  color: white;
  text-align: center;
  padding: 15px;
}