body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
  color: #333;
}

header {
  background-color: #2c3e50;
  color: #fff;
  padding: 1rem 2rem;
  text-align: center;
}

nav {
  background-color: #34495e;
  padding: 1rem 2rem;
  text-align: center;
}

nav a {
  color: #fff;
  margin: 0 1rem;
  text-decoration: none;
}

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

main {
  padding: 2rem;
}

section {
  background-color: #fff;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border-radius: 5px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

footer {
  text-align: center;
  padding: 1rem;
  background-color: #2c3e50;
  color: #fff;
}