/* Global Styles */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
  }
  
  .container {
    max-width: 800px;
    margin: 50px auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  }
  
  h1 {
    text-align: center;
    color: #333;
  }
  
  #company-details {
    text-align: center;
    font-size: 14px;
    margin-bottom: 20px;
  }
  
  #logo img {
    display: block;
    margin: 0 auto;
    max-width: 150px;
  }
  
  form {
    margin-bottom: 20px;
  }
  
  label {
    display: block;
    margin: 10px 0 5px;
  }
  
  input, select, textarea {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
  }
  
  button {
    background-color: #007bff;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
  }
  
  button:hover {
    background-color: #0056b3;
  }
  
  .output {
    background: #f9f9f9;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 8px;
    display: none;
  }
  
  .output h2 {
    text-align: center;
  }
  
  tfoot {
    background-color: #f4f4f4;
    font-weight: bold;
  }
  
  .validity-note {
    margin-top: 20px;
    color: #555;
    font-size: 14px;
    text-align: center;
  }
  
  .print-button {
    display: block;
    margin: 20px auto;
    background: #28a745;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
  }
  
  .print-button:hover {
    background: #218838;
  }