.back-to-top{position:fixed;display:flex;opacity:0;visibility:hidden;pointer-events:none;z-index:1300;z-index:var(--z-index-modal);transition:visibility 0s .5s,opacity .5s cubic-bezier(.33,0,0,1);transition:visibility 0s var(--duration-normal),opacity var(--duration-normal) var(--easing)}.back-to-top.visible{opacity:1;visibility:visible;transition:visibility 0s 0s,opacity .5s cubic-bezier(.33,0,0,1);transition:visibility 0s 0s,opacity var(--duration-normal) var(--easing)}.back-to-top.back-to-top--bottom-left{bottom:22px;left:22px;right:auto}.back-to-top.back-to-top--bottom-center{bottom:16px;bottom:var(--spacing-4);left:0;right:0}.back-to-top.back-to-top--bottom-center .back-to-top__button{margin:auto}.back-to-top.back-to-top--bottom-right{bottom:22px;right:22px}.back-to-top__button{display:flex;width:39px;height:39px;padding:0;border-radius:100%;pointer-events:all}.back-to-top__button .icon{width:39px;height:39px}