/* Loading indicator styles */
#loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  color: white;
  font-family: Arial, sans-serif;
  transition: opacity 0.5s ease-out;
}

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

#loading .loading-content {
  text-align: center;
}

#loading .spinner {
  width: 50px;
  height: 50px;
  border: 3px solid #333;
  border-top: 3px solid #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}