#preloader {
  position: fixed;
  inset: 0;
  background: #caf0f8;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

#preloader .logo {
  width: 120px;
  height: auto;
  animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}