.back-to-top{position:fixed;right:24px;bottom:24px;bottom:calc(24px + env(safe-area-inset-bottom,0px));z-index:1000;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;width:48px;height:55px;background:#14231eeF;color:#e6eee7;border:1px solid #799d8866;border-radius:3px;text-decoration:none;font:10px/1.4 Arial,sans-serif;letter-spacing:.09em;box-shadow:0 3px 18px #0002;transition:background .2s,border-color .2s}.back-to-top span{font-size:18px;line-height:1}.back-to-top:hover{background:#294033;border-color:#a6c3ad}.back-to-top:focus-visible{outline:2px solid #b9ddc7;outline-offset:4px}html{scroll-behavior:smooth}@media(max-width:640px){.back-to-top{right:14px;bottom:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));width:44px;height:48px}.footer{padding-bottom:80px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.back-to-top{transition:none}}