/* Reset & base styles */
* {
    box-sizing: border-box;
  }
  
  body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
  }
  
  /* Navigation */
  nav {
    background-color: #222;
  }
  
  nav ul {
    list-style: none;
    margin: 0;
    padding: 10px 0;
    display: flex;
    justify-content: center;
  }
  
  nav li {
    margin: 0 15px;
  }
  
  nav a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
  }
  
  nav a:hover {
    text-decoration: underline;
  }
  
  /* Hero section */
  .hero {
    text-align: center;
    padding: 30px 20px;
  }
  
  .hero img {
    max-width: 200px;
    border-radius: 12px;
    margin-top: 20px;
  }
  
  /* Sections */
  section {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
  }
  
  h1, h2 {
    color: #222;
  }
  
  /* Form */
  form {
    max-width: 500px;
    margin: 0 auto;
  }
  
  label {
    display: block;
    margin-top: 15px;
  }
  
  input,
  textarea {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
  }
  
  button {
    margin-top: 20px;
    padding: 10px;
    width: 100%;
    background-color: #222;
    color: #fff;
    border: none;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #444;
  }
  
  /* Footer */
  footer {
    text-align: center;
    padding: 20px;
    background-color: #222;
    color: #fff;
    margin-top: 40px;
  }
  
  /* Responsive design */
  @media (max-width: 768px) {
    nav ul {
      flex-direction: column;
      align-items: center;
    }
  
    .hero h1 {
      font-size: 1.8rem;
    }
  
    section {
      margin: 20px auto;
    }
  }