body {
  font-family: Arial, sans-serif;
  background: #f0f4f8;
  color: #333;
  margin: 0;
  padding: 0;
}

header {
  background: #1a73e8;
  color: #fff;
  padding: 20px;
  text-align: center;
}

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

nav a:hover {
  text-decoration: underline;
}

main {
  max-width: 900px;
  margin: 20px auto;
  padding: 0 20px;
}

h1, h2 {
  color: #1a73e8;
}

section {
  margin-bottom: 40px;
}

ul {
  line-height: 1.6;
}

footer {
  background: #1a73e8;
  color: #fff;
  text-align: center;
  padding: 10px 0;
}