body {
  font-family: "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  color: #333;
  background-color: #fafafa;
}

header {
  background: #333;
  color: #fff;
  padding: 10px 20px;
}

header h1 {
  margin: 0;
  font-size: 1.5em;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
  display: flex;
  gap: 15px;
}

nav a {
  color: #fff;
  text-decoration: none;
}

main {
  padding: 20px;
  background: #fff;
}

footer {
  text-align: center;
  padding: 15px;
  background: #333;
  color: #fff;
  font-size: 0.9em;
}