/* Snow sits above page cards, below navigation, and never captures input. */
body.ph-site{isolation:isolate}
.ph-blue-lights{position:fixed;inset:0;width:100vw;height:100vh;pointer-events:none;z-index:1070;opacity:.7;transition:opacity .5s ease}
.ph-blue-lights.is-off{opacity:0}
body.ph-site .back-to-top{right:20px}
@media(max-width:768px){body.ph-site .back-to-top{right:12px}}
@media(prefers-reduced-motion:reduce){.ph-blue-lights{transition:none}}