body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f5f5;
}

header {
  background: #111;
  color: white;
  padding: 15px;
  display: flex;
  justify-content: space-between;
}

nav a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
}

.hero {
  background: url('https://images.unsplash.com/photo-1505691938895-1758d7feb511') center/cover;
  color: white;
  padding: 100px;
  text-align: center;
}

.btn {
  padding: 10px 20px;
  background: gold;
  color: black;
  text-decoration: none;
  border-radius: 5px;
}

section {
  padding: 40px;
  text-align: center;
}

footer {
  background: #111;
  color: white;
  text-align: center;
  padding: 10px;
}