#initial-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: hsl(222 47% 8%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.3s ease-out;
}
html.theme-white #initial-loader {
  background: #ffffff;
}
#initial-loader.hidden {
  opacity: 0;
  pointer-events: none;
}
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid hsl(222 47% 20%);
  border-top-color: hsl(217 91% 60%);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
html.theme-white .spinner {
  border-color: hsl(217 91% 90%);
  border-top-color: hsl(217 91% 60%);
}
@keyframes spin {
  to { transform: rotate(360deg); }
}