/* Sticky WhatsApp button — fixed bottom-left, self-contained so it works
   on every page regardless of whether style.css is loaded. */
.whatsapp-btn {
  position: fixed;
  bottom: 25px;
  left: 25px;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  z-index: 9999;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  color: #fff;
}

@media (max-width: 480px) {
  .whatsapp-btn {
    bottom: 20px;
    left: 16px;
    width: 52px;
    height: 52px;
  }
  .whatsapp-btn svg {
    width: 24px;
    height: 24px;
  }
}