.cham-rail{position:fixed;top:0;right:0;height:100vh;height:100dvh;z-index:3;pointer-events:none;opacity:0;transition:opacity .9s var(--m-ease)}.cham-rail[data-ready=true]{opacity:1}.cham-rail[data-lost=true]{opacity:0}.cham-canvas{display:block;width:100%;height:100%}@media(prefers-reduced-motion:reduce){.cham-rail{display:none}}