.v3-header{transition:height .25s ease,box-shadow .25s ease,transform .24s ease,opacity .18s ease;will-change:transform}
.v3-header.v3-header--footer-visible{transform:translateY(calc(-100% - 6px));opacity:0;pointer-events:none}
@media(prefers-reduced-motion:reduce){.v3-header{transition:none}}