.output-timestamp {
    display: none;
}

@media print {
    .output-timestamp {
        display: block;
        grid-column: 1 / -1;
        margin-top: 2mm;
        font: 8pt/1.2 Arial, Helvetica, sans-serif;
        text-align: right;
        color: #333;
        break-inside: avoid;
    }
}