.back-to-top{position:fixed;bottom:120px;right:30px;z-index:1000;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease,transform .3s ease;transform:translateY(20px)}.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top-btn{width:50px;height:50px;border-radius:50%;background-color:#a857a9e6;color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.2rem;transition:background-color .3s ease,transform .3s ease,box-shadow .3s ease;box-shadow:0 4px 12px #0003}.back-to-top-btn:hover{background-color:#a857a9;transform:scale(1.1);box-shadow:0 6px 20px #0000004d}.back-to-top-btn:active{transform:scale(1.05)}.back-to-top-btn i{margin:0;padding:0}@media (max-width:768px){.back-to-top{bottom:110px;right:20px}.back-to-top-btn{width:45px;height:45px;font-size:1.1rem}}.sticky-whatsapp{position:fixed;bottom:32px;right:32px;z-index:1000;background:#25d366;color:#fff;border-radius:50%;width:64px;height:64px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px #0000002e;font-size:2.5rem;transition:background .2s,color .2s;text-decoration:none}.sticky-whatsapp:hover{background:#128c7e;color:#fff}.sticky-whatsapp.above-footer{position:absolute;bottom:auto}