/* 로그인 전용: 인증에서 돌아온 첫 그림부터 폼 대신 로딩을 표시한다. */
.login-loading-screen { display: none; }
html.login-loading .login-page > .app { visibility: hidden; }
html.login-loading .login-loading-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 24px;
  background: var(--surface);
  color: var(--sub);
  text-align: center;
}
.login-loading-screen p { margin: 0; font-size: var(--font-body-1, 16px); }
.login-loading-spinner {
  width: 32px;
  height: 32px;
  box-sizing: border-box;
  border: 3px solid var(--line);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: login-loading-spin .8s linear infinite;
}
@keyframes login-loading-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .login-loading-spinner { animation-duration: 2.4s; }
}