.wa-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25D366;
  box-shadow: 0 4px 12px rgba(37, 211, 102, .45);
  cursor: pointer;
  text-decoration: none;
  animation: wa-pulse 2s ease-in-out infinite;
  transition: transform .2s ease;
}

.wa-float:hover {
  transform: scale(1.1);
  animation: none;
  box-shadow: 0 6px 20px rgba(37, 211, 102, .6);
}

.wa-float svg {
  width: 32px;
  height: 32px;
  fill: #fff;
}

/* Anel pulsante atrás do botão */
.wa-float::before,
.wa-float::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(37, 211, 102, .35);
  z-index: -1;
  animation: wa-ring 2s ease-out infinite;
}

.wa-float::after {
  animation-delay: 1s;
}

@keyframes wa-pulse {
  0%, 100% { box-shadow: 0 4px 12px rgba(37, 211, 102, .45); }
  50%      { box-shadow: 0 4px 24px rgba(37, 211, 102, .7); }
}

@keyframes wa-ring {
  0%   { transform: scale(1); opacity: .6; }
  100% { transform: scale(1.8); opacity: 0; }
}