.scroll-to-top-btn{position:fixed;bottom:30px;right:30px;width:50px;height:50px;background-color:var(--wp--preset--color--primary);color:#fff;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease,transform .3s ease;z-index:9999;box-shadow:0 4px 12px rgba(0,0,0,.15)}.scroll-to-top-btn .dashicons{width:20px;height:20px;font-size:20px}.scroll-to-top-btn.show{opacity:1;visibility:visible}.scroll-to-top-btn:hover{transform:translateY(-3px);box-shadow:0 6px 16px rgba(0,0,0,.2)}.scroll-to-top-btn:active{transform:translateY(-1px)}.scroll-to-top-btn span{pointer-events:none}@media (max-width:768px){.scroll-to-top-btn{width:45px;height:45px;bottom:20px;right:20px;font-size:18px}}