.floating-whatsapp-button {
  position: fixed;
  right: clamp(18px, 4vw, 36px);
  bottom: clamp(18px, 4vw, 32px);
  width: 56px;
  height: 56px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #25d366;
  color: #fff;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  overflow: hidden;
  z-index: 1200;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.floating-whatsapp-button:hover,
.floating-whatsapp-button:focus {
  background: #20bd5a;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(0, 0, 0, 0.25);
  outline: none;
}

.floating-whatsapp-button:focus-visible {
  box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.28), 0 18px 34px rgba(0, 0, 0, 0.25);
}

.floating-whatsapp-button img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.floating-whatsapp-button.pulse.infinite {
  animation: floating-whatsapp-pulse 1.8s ease-in-out infinite;
}

@keyframes floating-whatsapp-pulse {
  0%,
  100% {
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.2), 0 0 0 0 rgba(37, 211, 102, 0.32);
  }

  50% {
    box-shadow: 0 18px 34px rgba(0, 0, 0, 0.25), 0 0 0 14px rgba(37, 211, 102, 0);
  }
}

@media (max-width: 575px) {
  .floating-whatsapp-button {
    width: 52px;
    height: 52px;
  }
}