/* Back to top sits above the avatar, with space for chat notifications. */
.back-to-top{position:fixed;right:24px;bottom:146px;z-index:11990;width:44px;height:44px;display:grid;place-items:center;padding:0;border:1px solid rgba(165,182,155,.65);border-radius:50%;background:linear-gradient(135deg,#d0ddc7,#a5b69b);color:#263d2b;box-shadow:0 5px 18px rgba(15,32,20,.2);cursor:pointer;transition:transform .2s,box-shadow .2s;}
.back-to-top[hidden]{display:none;}
.back-to-top:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(15,32,20,.25);}
.back-to-top:focus-visible{outline:2px solid #d0ddc7;outline-offset:4px;}
body:has(#steffi-chat-window.chat-open) .back-to-top{visibility:hidden;pointer-events:none;}
#steffi-chat-notify{bottom:206px;}
@media(max-width:600px){.back-to-top{right:14px;bottom:116px;width:42px;height:42px;}#steffi-chat-notify{bottom:174px;}}
@media(prefers-reduced-motion:reduce){.back-to-top{transition:none;}.back-to-top:hover{transform:none;}}