html:not(.site-page-ready) body {
    opacity: 0;
}

html.site-page-ready body {
    animation: site-page-fade-in 0.75s ease-out forwards;
}

@keyframes site-page-fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@media (prefers-reduced-motion: reduce) {
    html body {
        opacity: 1 !important;
        animation: none !important;
    }
}