.reveal-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.wa-float-btn {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  z-index: 2000;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  text-decoration: none;
}
.wa-float-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
}

@media (max-width: 600px) {
  .wa-float-btn {
    right: 16px;
    bottom: 16px;
    width: 50px;
    height: 50px;
  }
}