@media print{
  .noPrint{display:none!important}
  .printGrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
  .printItem{border:1px solid #ddd;border-radius:10px;padding:10px;page-break-inside:avoid}
  .printCode{margin-top:8px;font-weight:900;text-align:center}
  .qrBox{display:flex;justify-content:center;align-items:center}
  canvas{max-width:100%;height:auto}
}