.back-to-top{z-index:9999;color:#fff;cursor:pointer;opacity:0;visibility:hidden;pointer-events:none;background:linear-gradient(135deg,#0088d8,#0457a6);border:none;border-radius:50%;outline:none;justify-content:center;align-items:center;width:50px;height:50px;transition:all .4s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;bottom:30px;right:30px;transform:translateY(20px);box-shadow:0 4px 15px #0457a659}.back-to-top.active{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}.back-to-top:hover{background:linear-gradient(135deg,#0457a6,#003f6d);transform:translateY(-5px);box-shadow:0 6px 20px #0457a680}.back-to-top svg{transition:transform .3s}.back-to-top:hover svg{transform:translateY(-3px)}@media (max-width:768px){.back-to-top{width:44px;height:44px;bottom:20px;right:20px}}