.back-to-top{position:fixed;right:max(22px,env(safe-area-inset-right));bottom:calc(100px + env(safe-area-inset-bottom));z-index:9998;width:46px;height:46px;display:flex;align-items:center;justify-content:center;background:#f47b20;color:#17191c;border:2px solid #fff;border-radius:50%;box-shadow:0 4px 18px #0003;cursor:pointer;padding:0;transition:background .2s,transform .2s}.back-to-top[hidden]{display:none!important}.back-to-top:hover{background:#c75400;color:#fff;transform:translateY(-3px)}.back-to-top:focus-visible{outline:3px solid #128c49;outline-offset:4px}.back-to-top:active{transform:scale(.96)}@media(max-width:650px){.back-to-top{right:23px;bottom:calc(90px + env(safe-area-inset-bottom));width:46px;height:46px}}@media(prefers-reduced-motion:reduce){.back-to-top{transition:none}html{scroll-behavior:auto!important}}