.scroll-top-btn{position:fixed;bottom:30px;right:30px;width:50px;height:50px;background-color:#60060f;color:white;border:0;border-radius:10px;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s ease;z-index:1000;box-shadow:0 4px 12px rgba(0,0,0,0.15);display:flex;align-items:center;justify-content:center;font-size:20px}.scroll-top-btn.show{opacity:1;visibility:visible}.scroll-top-btn:hover{background-color:#ffc107;transform:translateY(-3px);box-shadow:0 6px 16px rgba(0,0,0,0.2)}.scroll-top-btn:active{transform:translateY(-1px)}