body {
    font-family: Arial, sans-serif;
  }
  
  header {
    background-color: #4CAF50;
    padding: 1em;
    text-align: center;
    color: white;
  }
  
  nav a {
    margin: 0 15px;
    color: white;
    text-decoration: none;
  }
  
  main {
    padding: 1em;
  }
  
  h2 {
    color: #4CAF50;
  }
  
  /* styles.css */
body {
  background-color: #f8f9fa;
}

header {
  margin-bottom: 20px;
}

.nav-link {
  font-size: 1.2rem;
}

h1, h2 {
  margin-bottom: 20px;
}

.card {
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}