.back-to-top{position:fixed;right:24px;bottom:24px;z-index:80;width:58px;height:58px;border:1px solid rgba(255,255,255,.42);border-radius:18px;background:linear-gradient(145deg,#1c9452,#0f6a38);color:#fff;box-shadow:0 14px 36px rgba(7,47,28,.34);display:grid;place-content:center;gap:0;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(18px) scale(.88);transition:opacity .25s,visibility .25s,transform .25s,box-shadow .25s}.back-to-top.visible{opacity:1;visibility:visible;transform:none}.back-to-top:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(7,47,28,.44)}.back-to-top:focus-visible{outline:3px solid #f0c77f;outline-offset:3px}.back-to-top span{font-size:1.4rem;line-height:1}.back-to-top b{font-size:.62rem;text-transform:uppercase;letter-spacing:.1em}@media(max-width:600px){.back-to-top{right:14px;bottom:14px;width:52px;height:52px;border-radius:16px}}