.whatsapp-float{position:fixed;right:22px;bottom:calc(22px + env(safe-area-inset-bottom,0));width:52px;height:52px;display:inline-flex;align-items:center;justify-content:center;background:#25D366;color:#fff;border-radius:50%;box-shadow:0 8px 24px rgba(0,0,0,.18);z-index:9999;text-decoration:none;transition:transform .2s,box-shadow .2s,opacity .2s}
.whatsapp-float:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.22)}
.whatsapp-float:active{transform:translateY(0);box-shadow:0 6px 18px rgba(0,0,0,.20)}
.whatsapp-float .bi{font-size:1.55rem;line-height:1}
@media (max-width:420px){.whatsapp-float{right:16px;width:48px;height:48px}.whatsapp-float .bi{font-size:1.35rem}}
@media print{.whatsapp-float{display:none!important}}