.btn-whatsapp-pulse{background:#1e9b56;color:#fff;box-shadow:0 0 0 0 rgba(30,155,86,.42);animation:waPulse 1.8s infinite}.wa-helper{font-size:.82rem;margin-top:10px}@keyframes waPulse{0%{box-shadow:0 0 0 0 rgba(30,155,86,.42)}70%{box-shadow:0 0 0 12px rgba(30,155,86,0)}100%{box-shadow:0 0 0 0 rgba(30,155,86,0)}}@media(prefers-reduced-motion:reduce){.btn-whatsapp-pulse{animation:none}}