body {
  font-family: system-ui, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #fdfdfd;
  color: #333;
}

header {
  background: #222;
  color: white;
  padding: 1rem;
  text-align: center;
}

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

nav a:hover {
  text-decoration: underline;
}

main {
  padding: 2rem;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #eee;
  font-size: 0.9rem;
}