.floating-wa {
  position: fixed;
  left: 20px;
  bottom: 20px;
  z-index: 55;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #25D366;
  color: #fff;
  box-shadow: 0 14px 30px rgba(37, 211, 102, .3);
  cursor: pointer;
  transition: .22s;
}

.floating-wa:hover {
  transform: translateY(-3px);
}

.floating-wa svg {
  width: 27px;
  height: 27px;
  fill: currentColor;
}

.back-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 54;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--secondary);
  color: #fff;
  box-shadow: 0 12px 28px rgba(99, 39, 79, .22);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: .25s;
}

.back-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

@media(max-width:580px) {
  .floating-wa {
    left: 14px;
    bottom: 14px;
  }

  .back-top {
    right: 14px;
    bottom: 14px;
  }
}