/* Reset some default styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  background-color: #f4f4f4;
  color: #333;
}

header {
  background-color: #222;
  color: #fff;
  padding: 1rem;
  text-align: center;
}

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

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

main {
  padding: 2rem;
  background-color: #fff;
  margin: 1rem auto;
  max-width: 960px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

footer {
  text-align: center;
  padding: 1rem;
  background-color: #222;
  color: #fff;
  margin-top: 2rem;
}