<!-- WhatsApp Chat Button -->
<a href="https://wa.me/919923692691?text=Hi AdviZen team! Interested in HR consulting services." 
   class="whatsapp-float" target="_blank" rel="noopener">
  <i class="fab fa-whatsapp whatsapp-icon"></i>
</a>

<style>
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 40px;
  right: 40px;
  background-color: #25d366;
  color: #FFF;
  border-radius: 50px;
  text-align: center;
  font-size: 30px;
  box-shadow: 2px 2px 3px #999;
  z-index: 100;
  animation: bounce 2s infinite;
}
.whatsapp-icon {
  margin-top: 16px;
}
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}
@media screen and (max-width: 768px) {
  .whatsapp-float { bottom: 20px; right: 20px; }
}
</style>

<!-- Font Awesome for icon (add to <head>) -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css">