.scroll-to-top{position:fixed;bottom:30px;right:30px;width:50px;height:50px;background-color:var(--primary);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 10px rgba(0,0,0,0.2);opacity:0;visibility:hidden;transition:all 0.3s ease-in-out;z-index:1000}.scroll-to-top.show{opacity:1;visibility:visible}.scroll-to-top:hover{background-color:var(--primary-hover);transform:translateY(-3px)}