/* Back to Top Button */
.back-to-top-btn {
  position: fixed;
  right: 30px;
  bottom: 170px; /* Position for PC */
  width: 50px;
  height: 50px;
  background-color: #4C64D3;
  color: #fff;
  text-align: center;
  line-height: 50px;
  font-size: 24px;
  border-radius: 50%;
  display: none; /* Hidden by default */
  z-index: 1000;
  text-decoration: none;
  transition: opacity 0.3s, visibility 0.3s;
}

.back-to-top-btn:hover {
  opacity: 0.8;
  color: #fff;
}

/* Adjust Back to Top button for mobile CTA */
@media screen and (max-width: 991.98px) {
  .back-to-top-btn {
    right: 20px;
    bottom: 165px; /* Mobile CTA height (145px) + 20px margin */
  }
}