@page {
    size: A4;
    margin: 0;
}

@media print {
    body {
        margin: 0;
        padding: 0;
    }

    /* Hide everything */
    body * {
        visibility: hidden;
    }

    /* Show print area only */
    #print-area,
    #print-area * {
        visibility: visible;
    }

    #print-area {
        position: absolute;
        top: 0;
        left: 0;
        width: 210mm;
        height: 297mm;
    }

    .no-print {
        display: none !important;
    }
}

/* A4 container */
.a4-page {
    width: 210mm;
    height: 297mm;
    margin: 0 auto;
}

/* Image scaling */
.a4-image {
    width: 100%;
    height: 100%;
    object-fit: contain; /* change to cover if needed */
    display: block;
}