body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background-color: #ffffff;
    color: #111;
  }
  
  header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1em 2em;
    background-color: #f9f9f9;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  }
  
  h1 {
    margin: 0;
    font-size: 1.8em;
  }
  
  .header-buttons {
    display: flex;
    gap: 1em;
  }
  
  .btn {
    text-decoration: none;
    padding: 0.5em 1em;
    border-radius: 8px;
    background-color: #f0f0f0;
    color: #111;
    font-weight: 500;
    border: 1px solid #ddd;
    transition: background-color 0.2s ease;
  }
  
  .btn:hover {
    background-color: #e0e0e0;
  }
  
  main {
    text-align: center;
    padding: 3em 1em;
  }
  
  .intro h2 {
    font-size: 1.6em;
    margin-bottom: 1em;
  }
  
  .intro p {
    max-width: 600px;
    margin: 1em auto;
    line-height: 1.6;
  }
  
  .wheel-image {
    margin-top: 2em;
    width: 40%;
    max-width: 90%;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
  }