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

header {
  background: #222;
  color: #fff;
  padding: 20px;
  text-align: center;
}

section {
  padding: 20px;
  margin: 10px auto;
  max-width: 800px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

h1, h2 {
  color: #444;
}

a {
  color: #0077b5;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  padding: 10px;
  background: #222;
  color: #fff;
}