.uc-header-change {
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  background-color: rgba(255,255,255,0);
}

.uc-header-change.scrolled {
  background-color: #ffffff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}