.back-to-top{position:fixed;bottom:var(--btt-margin,30px);width:42px;height:42px;border-radius:2px;background-color:var(--btt-bg,#111);color:var(--btt-icon,#FFF);border:1px solid rgba(255,255,255,.12);cursor:pointer;z-index:999;display:flex;align-items:center;justify-content:center;padding:0;margin:0;contain:layout paint style;will-change:transform,opacity;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(12px) translateZ(0);transition:opacity .25s cubic-bezier(.16,1,.3,1),transform .25s cubic-bezier(.16,1,.3,1),visibility .25s ease,background-color .2s ease,box-shadow .25s ease;box-shadow:0 4px 14px var(--btt-shadow,rgba(0,0,0,.18));box-sizing:border-box}.back-to-top--left{left:28px}.back-to-top--right{right:28px}.back-to-top.is-visible{opacity:1!important;visibility:visible!important;pointer-events:auto!important;transform:translateY(0) translateZ(0)!important}.back-to-top:hover{background-color:var(--btt-hover,#2A2A2A);color:var(--btt-icon,#FFF);transform:translateY(-3px) translateZ(0)!important;box-shadow:0 8px 22px rgba(0,0,0,.28)}.back-to-top:active{transform:translateY(-1px) translateZ(0)!important}.back-to-top svg{width:18px;height:18px;stroke-width:2.2;transition:transform .2s ease;display:block}.back-to-top:hover svg{transform:translateY(-1px)}@media screen and (max-width:768px){.back-to-top{display:none!important;visibility:hidden!important;pointer-events:none!important;opacity:0!important}}