.ct-back-to-top{position:fixed;z-index:110;bottom:calc(var(--theme-frame-size,0px)+var(--back-top-bottom-offset,25px));display:flex;align-items:center;justify-content:center;padding:12px;opacity:var(--opacity,0);visibility:var(--visibility,hidden);transform:var(--transform,translate3d(0,15px,0));background:var(--top-button-background-color,var(--theme-palette-color-3));box-shadow:var(--theme-box-shadow);border-radius:var(--theme-border-radius,2px);transition:opacity .3s ease,color .3s ease,background .3s ease,transform .3s ease,visibility .3s ease;--theme-icon-size:12px}.ct-back-to-top:hover{background:var(--top-button-background-hover-color,var(--theme-palette-color-4))}.ct-back-to-top:hover .ct-icon{fill:var(--theme-icon-hover-color,var(--theme-palette-color-2))}.ct-back-to-top.ct-show{--opacity:1;--visibility:visible;--transform:translate3d(0,0,0)}.ct-back-to-top[data-shape=circle]{--theme-border-radius:100%}.ct-back-to-top[data-alignment=left]{left:calc(var(--theme-frame-size,0px)+var(--back-top-side-offset,25px))}.ct-back-to-top[data-alignment=right]{right:calc(var(--theme-frame-size,0px)+var(--back-top-side-offset,25px))}