:root {
    --primary-color: #2563eb;
}

/* Simulate A4 aspect ratio on screen */
#invoice-preview {
    width: 210mm;
    min-height: 297mm;
    transform-origin: top center;
}

/* Hide UI elements during print */
@media print {
    .no-print { display: none !important; }
    body { background: white; }
    #invoice-preview {
        width: 100%;
        margin: 0;
        padding: 0;
        box-shadow: none;
        border: none;
    }
}

/* Custom Scrollbar for the preview if it overflows */
#invoice-preview::-webkit-scrollbar { width: 0; }