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

header {
  background-color: #2d7dfa;
  color: white;
  padding: 2rem;
  text-align: center;
}

main {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

section {
  margin-bottom: 2rem;
}

footer {
  text-align: center;
  padding: 1rem;
  background-color: #eee;
  color: #777;
  font-size: 0.9rem;
}