.backToTop{position:fixed;right:clamp(12px,2vw,24px);bottom:calc(env(safe-area-inset-bottom) + clamp(12px,2vw,24px));z-index:1000;width:44px;height:44px;border:2px solid #252525;border-radius:0;cursor:pointer;background:var(--primary);color:#111;box-shadow:0 6px 20px rgba(0,0,0,.2);display:grid;place-items:center;opacity:0;transform:translateY(16px) scale(.98);pointer-events:none;transition:opacity .25s ease,transform .25s ease,box-shadow .2s ease}.backToTop svg{color:#252525;width:32px;height:32px;transition:all .3s}.backToTop:hover{box-shadow:0 8px 26px rgba(0,0,0,.24)}.backToTop:hover svg{color:#fff}.backToTop:focus-visible{outline:2px solid #111;outline-offset:3px}.show{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}@media(prefers-reduced-motion:reduce){.backToTop{transition:none}}