.back-to-top{position:fixed;bottom:var(--back-to-top-margin,30px);width:45px;height:45px;border-radius:50%;background-color:var(--back-to-top-bg,#2d1b08);color:var(--back-to-top-icon,#fff);border:1px solid var(--back-to-top-shadow,#d49d84);cursor:pointer;z-index:1000;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(20px);transition:all .3s ease;box-shadow:2px 2px 0 var(--back-to-top-shadow,#d49d84)}.back-to-top--left{left:30px}.back-to-top--right{right:30px}.back-to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background-color:var(--back-to-top-hover,#3d2b18);transform:translateY(-5px);box-shadow:0 0 0 var(--back-to-top-shadow,#d49d84)}.back-to-top svg{width:24px;height:24px}@media screen and (max-width:749px){.back-to-top{bottom:calc(var(--back-to-top-margin,30px)/ 2);width:40px;height:40px}.back-to-top--left{left:15px}.back-to-top--right{right:15px}}