.site-back-to-top {
 position:fixed; right:24px; bottom:28px; z-index:1000;
 display:flex; align-items:center; justify-content:center;
 width:44px; height:44px; padding:0;
 border:1px solid #bcbdb1; border-radius:50%;
 background:#d9d9ce; color:#41453b;
 font:22px/1 Georgia,serif; cursor:pointer;
 box-shadow:0 1px 3px #3035250a;
}
.site-back-to-top[hidden] { display:none; }
.site-back-to-top:hover { background:#cbd0bd; }
.site-back-to-top:focus-visible { outline:2px solid #56634b; outline-offset:4px; }
@media(max-width:600px) { .site-back-to-top { right:16px; bottom:20px; } }