body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  background-color: #f9f9f9;
  color: #222;
  margin: 0;
  padding: 0;
}

main {
  max-width: 800px;
  margin: 2rem auto;
  padding: 2rem;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
  color: #b30000;
  font-size: 1.8em;
}

ul {
  padding-left: 1.2rem;
}

footer {
  margin-top: 3rem;
  font-size: 0.9em;
  color: #555;
}