:root{--text:#222;--bg:#f3f4f6;--paper:#fff;--border:#ddd;--max-width:1200px;color:#222;background:var(--bg);font-family:Segoe UI,Roboto,Arial,sans-serif;font-size:16px}*{box-sizing:border-box}body{background:var(--bg);margin:0}#root{width:min(100%, var(--max-width));margin:0 auto;padding:0}h1,h2,h3{margin:0}@media print{body{background:#fff}#root{width:100%;margin:0;padding:0}}.invoice-preview{background:#f5f5f5}@media print{body>:not(.invoice-preview){display:none!important}.invoice-preview{top:0;left:0;width:100%!important;height:100%!important;box-shadow:none!important;background:#fff!important;position:absolute!important;overflow:visible!important}@page{size:A4 portrait;margin:20mm}}