:root{--stt-primary-color:#07adb7;--stt-bg-hover:#fff;--stt-shadow-color:rgba(0,0,0,.2);--stt-animation-duration:200ms;--stt-size:46px;--stt-icon-size:20px;--stt-circle-stroke-width:5px;--stt-arrow-stroke-width:4px}.scroll-to-top{position:fixed;right:50px;bottom:50px;width:var(--stt-size);height:var(--stt-size);cursor:pointer;border-radius:50%;box-shadow:inset 0 0 0 2px var(--stt-shadow-color);background:transparent;z-index:10000;opacity:0;visibility:hidden;transform:translateY(15px);transition:all var(--stt-animation-duration) ease-out;display:flex;align-items:center;justify-content:center;-webkit-tap-highlight-color:transparent}.scroll-to-top.active{opacity:1;visibility:visible;transform:translateY(0)}.scroll-to-top:hover{background:var(--stt-bg-hover);box-shadow:0 2px 10px rgba(0,0,0,.15)}.scroll-to-top-icon{position:relative;z-index:2;color:var(--stt-primary-color);width:var(--stt-icon-size);height:var(--stt-icon-size)}.scroll-to-top-icon .arrow-path{stroke-width:var(--stt-arrow-stroke-width)}.progress-circle{position:absolute;top:0;left:0;width:100%;height:100%;transform:rotate(-90deg);pointer-events:none}.progress-circle-path{fill:none;stroke:var(--stt-primary-color);stroke-width:var(--stt-circle-stroke-width);stroke-dasharray:283;stroke-dashoffset:283;transition:stroke-dashoffset 10ms linear}@media (max-width:768px){:root{--stt-size:40px;--stt-icon-size:18px}.scroll-to-top{right:20px;bottom:20px}}@media (prefers-color-scheme:dark){:root{--stt-bg-hover:#333;--stt-shadow-color:rgba(255,255,255,.2)}}@media (prefers-reduced-motion:reduce){.scroll-to-top{transition-duration:.01ms!important}}