#liff-startup-screen {
  display: none;
}

html.liff-starting #liff-startup-screen {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: var(--color-canvas);
  color: var(--color-brand-700);
  font-size: 0.875rem;
  font-weight: 500;
}

.liff-startup-spinner {
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--color-brand-100);
  border-top-color: var(--color-brand-700);
  border-radius: 50%;
  animation: liff-startup-spin 0.8s linear infinite;
}

#liff-startup-screen[role='alert'] {
  color: var(--color-danger-strong);
}

#liff-startup-screen[role='alert'] .liff-startup-spinner {
  display: none;
}

@keyframes liff-startup-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .liff-startup-spinner {
    animation: none;
  }
}