body{background-color:#f8f9fa}.file-drop-area{border:2px dashed #dee2e6;border-radius:4px;padding:20px;text-align:center;cursor:pointer;margin-bottom:20px;transition:border-color .3s}.file-drop-area:hover{border-color:#0d6efd}.xml-editor{font-family:monospace;width:100%;height:500px;padding:12px;border:1px solid #dee2e6;border-radius:4px;font-size:14px;resize:vertical}.hidden{display:none}.icon-sm{width:16px;height:16px}.icon-md{width:20px;height:20px}.icon-lg{width:24px;height:24px}