.tool-wrapper {
    max-width: 700px;
    margin: 40px auto;
  }

  .card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
  }

  .card-header {
    border-radius: 15px 15px 0 0;
  }

  .form-control-file {
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #fff;
  }

  select.form-control {
    cursor: pointer;
  }

  #outputText {
    font-size: 14px;
    background-color: #f4f7f9;
    border: 1px solid #ced4da;
  }

  .btn-success {
    background-color: #28a745;
    font-weight: 600;
  }

  .btn-primary {
    font-weight: 600;
  }

  #progressBox {
    margin-top: 20px;
  }

  .spinner-border {
    width: 2.5rem;
    height: 2.5rem;
  }

  .footer-note {
    font-size: 0.85rem;
    color: #777;
    margin-top: 1rem;
    text-align: center;
  }