.back-to-top{position:fixed;right:22px;bottom:22px;z-index:950;width:48px;height:48px;padding:0;border:0;border-radius:50%;background:#98421f;color:#fff;font:800 26px/1 Arial,sans-serif;box-shadow:0 7px 20px #3f210a40;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .18s ease,transform .18s ease,visibility .18s ease,bottom .18s ease}.back-to-top.visible{opacity:1;visibility:visible;transform:none}.back-to-top:hover{background:#773319}.back-to-top:focus-visible{outline:3px solid #eabf98;outline-offset:3px}body:has(.portal-help-button) .back-to-top{bottom:88px}@media(max-width:700px){.back-to-top{right:14px;bottom:14px;width:44px;height:44px;font-size:24px}body:has(.portal-help-button) .back-to-top{bottom:74px}}