* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background: #f4f4f4;
  color: #333;
}

header {
  background: #111;
  color: white;
  padding: 40px;
  text-align: center;
}

section {
  padding: 40px;
  max-width: 800px;
  margin: auto;
}

h2 {
  margin-bottom: 15px;
  color: #222;
}

ul li {
  margin: 8px 0;
}

footer {
  background: #111;
  color: white;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}