/* Global Styles */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f2f2f2;
  }
  
  h1 {
    text-align: center;
    margin-top: 50px;
    color: #333;
  }
  
  section {
    margin: 50px auto;
    max-width: 800px;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  }
  
  h2 {
    margin-top: 30px;
    color: #333;
  }
  
  input[type="text"],
  input[type="number"],
  button {
    display: block;
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
  }
  
  button {
    background-color: #4caf50;
    color: #fff;
    cursor: pointer;
  }
  
  table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
  }
  
  th,
  td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ddd;
  }
  
  thead th {
    background-color: #f2f2f2;
  }
  
  tbody tr:nth-child(even) {
    background-color: #f9f9f9;
  }
  
  #totals-table {
    margin-top: 50px;
  }
  
  #totals-table th {
    background-color: #4caf50;
    color: #fff;
  }
  
  #totals-table td {
    font-weight: bold;
    color: #333;
  }
  
  /* Animation */
  @keyframes fadeIn {
    0% {
      opacity: 0;
    }
    100% {
      opacity: 1;
    }
  }
  
  .fade-in {
    animation: fadeIn 1s ease-in-out;
  }