body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #f7f7f7;
  margin: 0;
  color: #222;
}

header {
  background-color: #333;
  color: #fff;
  padding: 2rem;
  text-align: center;
}

nav {
  background: #eee;
  padding: 0.5rem;
  text-align: center;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: inline-flex;
  gap: 1.5rem;
}

nav a {
  text-decoration: none;
  color: #333;
  font-weight: bold;
}

main {
  padding: 2rem;
}

section {
  margin-bottom: 2rem;
}

footer {
  background-color: #333;
  color: white;
  text-align: center;
  padding: 1rem;
}