.fab-stack{position:fixed;right:clamp(14px,2vw,22px);bottom:clamp(14px,2vw,22px);display:flex;flex-direction:column;gap:12px;z-index:8000;pointer-events:none}.fab,.fab-stack{align-items:center}.fab{pointer-events:auto;width:56px;height:56px;border-radius:50%;display:inline-flex;justify-content:center;border:none;cursor:pointer;text-decoration:none;box-shadow:0 6px 20px rgba(0,0,0,.18),0 2px 6px rgba(0,0,0,.08);transition:transform .22s cubic-bezier(.4,0,.2,1),box-shadow .22s,background .22s,opacity .25s;position:relative}.fab:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(0,0,0,.22),0 4px 8px rgba(0,0,0,.1)}.fab svg{width:28px;height:28px;display:block}.fab-whatsapp{background:#25D366;color:#fff}.fab-whatsapp:hover{background:#1FB855}.fab-whatsapp svg{fill:#fff}.fab-whatsapp:before{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid #25d366;opacity:0;animation:fab-pulse 2.6s ease-out 1.5s 3;pointer-events:none}@keyframes fab-pulse{0%{opacity:.7;transform:scale(1)}to{opacity:0;transform:scale(1.45)}}.fab-top{background:rgba(255,255,255,.92);backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);border:1px solid rgba(0,147,139,.15);color:var(--c-brand-dark);width:48px;height:48px;opacity:0;pointer-events:none;transform:translateY(20px) scale(.85)}.fab-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0) scale(1)}.fab-top:hover{background:#fff;color:#006D65}.fab-top svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}.fab-tip{right:calc(100% + 12px);white-space:nowrap;padding:6px 12px;background:var(--c-text);color:#fff;font-size:12.5px;font-weight:600;border-radius:8px;opacity:0;pointer-events:none;transition:opacity .18s,transform .18s}.fab-tip,.fab-tip:after{position:absolute;top:50%;transform:translateY(-50%)}.fab-tip:after{content:"";left:100%;border:5px solid transparent;border-left:5px solid var(--c-text)}.fab:hover .fab-tip{opacity:1;transform:translateY(-50%) translateX(-2px)}@media (max-width:880px){.fab-tip{display:none}.fab{width:52px;height:52px}.fab svg{width:26px;height:26px}.fab-top{width:44px;height:44px}.fab-top svg{width:20px;height:20px}}@media (prefers-reduced-motion:reduce){.fab-whatsapp:before{animation:none}}