body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f5f5f5;
  color: #333;
}

header {
  background: #222;
  color: #fff;
  padding: 32px 20px;
  text-align: center;
}

main {
  max-width: 860px;
  margin: 24px auto;
  padding: 24px;
  background: #fff;
  box-sizing: border-box;
}

section + section {
  margin-top: 24px;
}

footer {
  text-align: center;
  padding: 24px 16px 40px;
  font-size: 14px;
}

a {
  color: #0a66c2;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}