.fs-whatsapp-wrapper{position:fixed;right:20px;bottom:20px;z-index:9999;display:flex;flex-direction:column;gap:12px}
.fs-whatsapp-btn{position:relative;width:56px;height:56px;background:#25D366;border-radius:50%;display:flex;align-items:center;justify-content:center;text-decoration:none;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.fs-wa-icon{width:28px;height:28px;fill:#fff}
.fs-tooltip{position:absolute;right:70px;background:#111;color:#fff;padding:8px 12px;border-radius:6px;white-space:nowrap;font-size:13px;opacity:0;transform:translateY(4px);pointer-events:none;transition:all .25s ease}
.fs-whatsapp-btn:hover .fs-tooltip{opacity:1;transform:translateY(0)}