#back-to-top{position:fixed;right:24px;bottom:calc(24px + env(safe-area-inset-bottom,0px));z-index:90;display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:12px 17px;border:1px solid #718069;border-radius:30px;background:#252b26;color:#f7f6f2;box-shadow:0 5px 20px #0002;font:500 12px/1.4 'DM Sans',Arial,sans-serif;cursor:pointer;transition:transform .2s,box-shadow .2s}
#back-to-top[hidden]{display:none!important}
html[data-theme="dark"] #back-to-top{background:#c3d0b3;color:#18201c;border-color:#c3d0b3}
#back-to-top:hover{transform:translateY(-3px);box-shadow:0 8px 24px #0003}
#back-to-top:focus-visible{outline:2px solid currentColor;outline-offset:4px}
#back-to-top svg{flex-shrink:0}
@media(max-width:650px){#back-to-top{right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));width:46px;min-height:46px;padding:12px}#back-to-top span{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip-path:inset(50%)}}
@media(prefers-reduced-motion:reduce){#back-to-top{transition:none}#back-to-top:hover{transform:none}}