indow.document;

        const html = `
                    <!DOCTYPE html>
                    <html>
                    <head>
                        <style>
                            body { 
                                margin: 0; 
                                padding: 20px; 
                                font-family: 'Segoe UI', Arial, sans-serif;
                                background: white;
                                color: #333;
                            }
                    