body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  color: #333;
  background-color: #f4f4f4;
  margin: 0;
  padding: 0;
}
header {
  background-color: #007bff;
  color: #fff;
  padding: 20px;
}
nav {
  display: flex;
  justify-content: space-between;
}
nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
}
nav ul li {
  margin: 0 10px;
}
nav a {
  text-decoration: none;
  color: #fff;
  font-weight: bold;
  transition: color 0.3s;
}
nav a:hover {
  color: #ffd700;
}
section {
  padding: 20px;
}
footer {
  background-color: #913df2;
  color: #fff;
  padding: 20px;
  text-align: center;
}