body {
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  margin: 0;
  padding: 0;
}

nav {
  background: #2d3748;
  color: white;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
}

nav a {
  color: white;
  margin-right: 15px;
  text-decoration: none;
}

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

.container {
  max-width: 1600px;
  margin: 2rem auto;
  background: white;
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}