.back-to-top-button_button__jCGXn{display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box;width:52px;height:52px;padding:0;border:var(--w2-size-border-default) solid var(--w2-color-border-subtle);border-radius:var(--w2-size-radius-pill);background:var(--w2-color-surface-raised);color:var(--w2-color-icon-primary);box-shadow:var(--w2-shadow-elevation-4);cursor:pointer;overflow:hidden;transition:border-color var(--w2-motion-duration-interface) var(--w2-motion-easing-standard),background var(--w2-motion-duration-interface) var(--w2-motion-easing-standard),box-shadow var(--w2-motion-duration-interface) var(--w2-motion-easing-standard)}.back-to-top-button_button__jCGXn:focus-visible,.back-to-top-button_button__jCGXn:hover{border-color:color-mix(in srgb,var(--w2-color-border-brand) 55%,transparent);background:var(--w2-color-surface-overlay);box-shadow:var(--w2-shadow-elevation-4),0 0 var(--w2-size-padding-md) color-mix(in srgb,var(--w2-color-surface-brand-default) 30%,transparent);outline:none}.back-to-top-button_arrow__4S3VV{transition:color var(--w2-motion-duration-interface) var(--w2-motion-easing-standard),filter var(--w2-motion-duration-interface) var(--w2-motion-easing-standard)}.back-to-top-button_button__jCGXn:focus-visible .back-to-top-button_arrow__4S3VV,.back-to-top-button_button__jCGXn:hover .back-to-top-button_arrow__4S3VV{color:var(--w2-color-icon-brand);filter:drop-shadow(0 0 6px var(--w2-color-surface-brand-default));animation:back-to-top-button_btt-arrow-up__kCw1G .9s ease-in-out infinite alternate}@keyframes back-to-top-button_btt-arrow-up__kCw1G{0%{transform:translateY(1px)}to{transform:translateY(-3px)}}@media (prefers-reduced-motion:reduce){.back-to-top-button_button__jCGXn:focus-visible .back-to-top-button_arrow__4S3VV,.back-to-top-button_button__jCGXn:hover .back-to-top-button_arrow__4S3VV{animation:none}}