body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(to right, #f9f9f9, #e3f2fd);
    margin: 0;
    padding: 0;
    color: #333;
    line-height: 1.6;
  }
  
  header {
    background-color: #2196f3;
    color: white;
    padding: 40px 20px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  }
  
  header h1 {
    margin: 0;
    font-size: 36px;
  }
  
  header p {
    font-size: 18px;
  }

  main {
    padding: 30px 20px;
  }
  
  section {
    background-color: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    margin-bottom: 20px;
  }

  footer {
    background-color: #f1f1f1;
    text-align: center;
    padding: 15px;
    font-size: 14px;
    color: #555;
  }