body {
    font-family: 'Poppins', sans-serif;
    background: #f0f4f8;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px;
  }
  
  h2 {
    color: #333;
    margin-bottom: 20px;
  }
  
  #dropZone {
    border: 3px dashed #4CAF50;
    background-color: #e8f5e9;
    color: #4CAF50;
    padding: 40px;
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s;
  }
  
  #dropZone.dragover {
    background-color: #c8e6c9;
  }
  
  button {
    background: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    margin-top: 20px;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s ease-in-out;
  }
  
  button:hover {
    background: #43a047;
  }
  
  pre {
    margin-top: 30px;
    background: white;
    padding: 20px;
    border-radius: 10px;
    max-width: 90%;
    overflow-x: auto;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }

  .table-summary {
    border-collapse: collapse;
    width: 100%;
    max-width: 600px;
    margin-top: 10px;
    font-family: 'Poppins', sans-serif;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  }
  
  .table-summary th,
  .table-summary td {
    border: 1px solid #ddd;
    padding: 10px 12px;
    text-align: left;
  }
  
  .table-summary th {
    background-color: #f4f4f4;
    font-weight: 600;
  }
  
  .table-summary td {
    color: #333;
  }
  
  .table-summary tr:nth-child(even) {
    background-color: #f9f9f9;
  }
  
  
  #sliderContainer,
#output {
  display: none;
}

footer#copyright {
    margin-top: 50px;
    text-align: center;
    font-size: 0.8rem;
    color: #888;
  }