body {
  font-family: Arial, sans-serif;
  background-color: #f4f6f8;
  margin: 0;
  color: #222;
}

nav {
  background-color: #1f2937;
  padding: 15px;
  text-align: center;
}

nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
}

h1, h2 {
  text-align: center;
}

p {
  max-width: 800px;
  margin: 20px auto;
  padding: 0 20px;
}

ul {
  max-width: 800px;
  margin: auto;
}

li {
  margin: 8px 0;
}