.whatsapp-float {
  position: fixed;
  z-index: 20;
  left: 24px;
  bottom: 24px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 999px;
  background: #25d366;
  color: #fff;
  font: 800 13px Cairo, Arial, sans-serif;
  box-shadow: 0 10px 25px rgba(18, 116, 58, .3);
  transition: transform .2s ease, background .2s ease;
}

.whatsapp-float:hover { background: #1ebe5b; transform: translateY(-3px); }
.whatsapp-float svg { width: 23px; height: 23px; fill: currentColor; }

@media (max-width: 800px) {
  .whatsapp-float { left: 16px; bottom: 76px; width: 48px; height: 48px; padding: 0; justify-content: center; }
  .whatsapp-float span { display: none; }
  .whatsapp-float svg { width: 27px; height: 27px; }
}