.ScrollToTop_button__Y0kJu{position:fixed;right:var(--space-4);bottom:var(--space-4);z-index:50;width:48px;height:48px;display:flex;align-items:center;justify-content:center;padding:0;border:1px solid var(--color-border);border-radius:50%;background:var(--color-bg-card);color:var(--color-fg);cursor:pointer;box-shadow:0 2px 12px rgba(0,0,0,.15);transition:background .2s,color .2s,border-color .2s,transform .15s}@media (hover:hover) and (pointer:fine){.ScrollToTop_button__Y0kJu:hover{background:var(--color-bg-card-hover,rgba(0,0,0,.04));color:var(--color-fg-active);border-color:var(--color-fg-active)}}.ScrollToTop_button__Y0kJu:active{transform:scale(.96)}.ScrollToTop_button__Y0kJu:focus-visible{outline:var(--focus-ring);outline-offset:var(--focus-ring-offset)}@media (max-width:768px){.ScrollToTop_button__Y0kJu{bottom:calc(var(--bottom-nav-height) + env(safe-area-inset-bottom, 0px) + var(--space-3));width:44px;height:44px}}