.back-to-top{position:fixed;right:max(1rem,env(safe-area-inset-right));bottom:max(1rem,env(safe-area-inset-bottom));z-index:1000;width:3rem;height:3rem;border:0;border-radius:50%;background:#174f63;color:white;box-shadow:0 6px 22px #102b3a55;font-size:1.5rem;line-height:1;cursor:pointer}.back-to-top:hover{background:#0e718a}.back-to-top:focus-visible{outline:3px solid #e69e4c;outline-offset:3px}.back-to-top[hidden]{display:none}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}