body {
  font-family: 'Segoe UI', sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background-color: #f9f9f9;
  color: #333;
}

header {
  background-color: #fff;
  padding: 2rem 1rem;
  text-align: center;
  border-bottom: 1px solid #ccc;
}

header h1 {
  margin: 0;
  font-size: 2rem;
}

nav {
  margin-top: 1rem;
}

nav a {
  margin: 0 1rem;
  text-decoration: none;
  color: #333;
  font-weight: bold;
}

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

main {
  padding: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.9rem;
  color: #888;
}