.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 40;
  width: 58px;
  height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  box-shadow: 0 18px 44px rgba(5, 5, 7, .22);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
  transform: translateY(-3px) scale(1.04);
  background: #1fbd5a;
  box-shadow: 0 22px 54px rgba(5, 5, 7, .28);
}

.whatsapp-float svg {
  width: 31px;
  height: 31px;
  fill: currentColor;
}

.whatsapp-float span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .whatsapp-float {
    right: 16px;
    bottom: 16px;
    width: 54px;
    height: 54px;
  }
}