.anm-backtotop{position:fixed;right:clamp(16px,2vw,28px);bottom:clamp(16px,2vw,28px);width:52px;height:52px;border:none;border-radius:50%;background:#B900EF;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(8,1,114,0.25),0 12px 28px rgba(8,1,114,0.35);z-index:9999;opacity:0;pointer-events:none;translate:0 18px;scale:.85;transition:opacity .3s ease,translate .35s cubic-bezier(.22,.61,.36,1),scale .35s cubic-bezier(.22,.61,.36,1),background-color .25s ease,box-shadow .25s ease;-webkit-tap-highlight-color:transparent}.anm-backtotop.is-visible{opacity:1;pointer-events:auto;translate:0 0;scale:1}.anm-backtotop:hover{background:#CC00FF;box-shadow:0 6px 16px rgba(8,1,114,0.30),0 14px 34px rgba(204,0,255,0.45)}.anm-backtotop:active{scale:.94}.anm-backtotop:focus-visible{outline:3px solid #fff;outline-offset:3px}.anm-backtotop svg{width:22px;height:22px;display:block}@media (max-width:479px){.anm-backtotop{width:46px;height:46px}.anm-backtotop svg{width:19px;height:19px}}@media (prefers-reduced-motion:reduce){.anm-backtotop{transition:opacity .2s ease,background-color .2s ease;translate:0 0;scale:1}}