.back-to-top{bottom:var(--space-lg);right:var(--space-lg);z-index:var(--z-back-to-top,100);-webkit-backdrop-filter:blur(12px);cursor:pointer;opacity:0;pointer-events:none;background:#ffffff1a;border:1px solid #ffffff26;border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;transition:opacity .3s,transform .3s,background .2s;display:flex;position:fixed;transform:translateY(20px)}.back-to-top.visible{opacity:1;pointer-events:auto;transform:translateY(0)}.back-to-top:hover{background:#fff3;transform:translateY(-2px)}.back-to-top svg{width:20px;height:20px;stroke:var(--white);stroke-width:2px;fill:none}@media (width<=767px){.back-to-top{width:44px;height:44px;bottom:var(--space-md);right:var(--space-md)}}