body {
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  background: #f4f6f8;
  color: #333;
}

header {
  background: #0b5ed7;
  color: white;
  padding: 24px;
  text-align: center;
}

header h1 {
  margin: 0;
}

nav {
  margin-top: 10px;
}

nav a {
  color: white;
  margin: 0 12px;
  text-decoration: none;
  font-weight: bold;
}

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

main {
  padding: 30px;
  max-width: 900px;
  margin: 30px auto;
  background: white;
  border-radius: 6px;
}

section {
  margin-bottom: 35px;
}

h2 {
  color: #0b5ed7;
}

footer {
  background: #222;
  color: #ccc;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}