.app-booting {
  overflow: hidden;
}

.app-boot-loading {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: grid;
  place-items: center;
  background: var(--paper);
  opacity: 1;
  visibility: visible;
  transition: opacity .2s ease, visibility .2s ease;
}

.app-boot-loading.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.app-boot-spinner {
  width: 34px;
  height: 34px;
  border: 3px solid var(--paper-line);
  border-top-color: var(--red);
  border-radius: 50%;
  animation: app-boot-spin .72s linear infinite;
}

@keyframes app-boot-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .app-boot-spinner {
    animation: none;
    border-color: var(--paper-line);
    border-top-color: var(--red);
  }

  .app-boot-loading {
    transition: none;
  }
}