body{
  margin: 0;
  padding: 0;
  background: var(--charcoal);
  font-family: Arial, sans-serif;
}

.floating-whatsapp {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 1500;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.4);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  animation: whatsappPulse 2.5s ease-in-out infinite;
}

.floating-whatsapp svg {
  width: 28px;
  height: 28px;
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 10px 26px rgba(37, 211, 102, 0.55);
  animation-play-state: paused;
}

@keyframes whatsappPulse {
  0%, 100% {
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.4), 0 0 0 10px rgba(37, 211, 102, 0.15);
  }
}

@media (max-width: 600px) {
  .floating-whatsapp {
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
  }

  .floating-whatsapp svg {
    width: 24px;
    height: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .floating-whatsapp {
    animation: none;
  }
}