.back-to-top{position:fixed;right:clamp(16px,2.4vw,34px);bottom:clamp(16px,2.4vw,34px);z-index:90;display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;padding:0;border:1px solid #d7b774;border-radius:50%;background:#163b31;color:#fffdf8;box-shadow:0 12px 28px rgba(4,23,19,.24);font:500 25px/1 'DM Sans',sans-serif;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(12px);transition:opacity .18s ease,transform .18s ease,visibility .18s ease}.back-to-top.is-visible{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}.back-to-top:hover{background:#31554a;color:#f8e7b1}.back-to-top:focus-visible{outline:2px solid #f8e7b1;outline-offset:3px}@media(max-width:700px){.back-to-top{width:42px;height:42px;font-size:23px}}@media(prefers-reduced-motion:reduce){.back-to-top{transition:none}}