body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #bfbff8;
    color: #c42727;
  }
  
  .invoice-container {
    width: 70%;
    margin: 20px auto;
    background-color: #ffffff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
  }
  
  .invoice-header {
    text-align: center;
    margin-bottom: 20px;
  }
  
  .invoice-header h1 {
    font-size: 2.5em;
    color: #333;
  }
  
  .invoice-header p {
    font-size: 1em;
    margin: 5px 0;
  }
  
  .customer-info, .billing-form {
    margin-bottom: 20px;
  }
  
  .customer-info label, .billing-form label {
    display: block;
    margin-top: 10px;
    font-weight: bold;
  }
  
  .customer-info input, .billing-form input {
    width: 100%;
    padding: 12px;
    margin-top: 5px;
    margin-bottom: 10px;
    font-size: 1em;
    border: 1px solid #ccc;
    border-radius: 5px;
  }
  
  button {
    padding: 12px 20px;
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1.2em;
    border-radius: 5px;
    width: 100%;
    margin-top: 10px;
  }
  
  button:hover {
    background-color: #45a049;
  }
  
  table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
  }
  
  th, td {
    padding: 12px;
    text-align: center;
    border: 1px solid #ddd;
  }
  
  th {
    background-color: #f2f2f2;
  }
  
  .invoice-total {
    text-align: right;
    font-size: 1.5em;
    font-weight: bold;
  }
  
  #generate-bill {
    background-color: #2196F3;
  }
  
  #generate-bill:hover {
    background-color: #1976D2;
  }
  
  #print-container {
    display: none;
    margin-top: 20px;
  }
  
  #print-container .print-container {
    display: block;
  }
  
  #bill-content {
    margin-top: 20px;
    padding: 20px;
    border: 1px solid #ddd;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    font-family: 'Arial', sans-serif;
  }
  
  @media print {
    body {
      font-family: 'Arial', sans-serif;
      color: #000;
      margin: 0;
      padding: 0;
    }
  
    .invoice-container, #print-btn {
      display: none;
    }
  
    #bill-content {
      width: 90%;
      margin: 0;
      padding: 20px;
    }
  }