/* ==========================================================================
   GEOER · 零件：全屏 loading 遮罩
   ========================================================================== */

.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(240, 244, 253, 0.76);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  /* 不可穿透 */
  pointer-events: auto;
}

.loading-overlay[hidden] {
  display: none;
}

.loading-overlay.is-open {
  opacity: 1;
}

.loading-overlay__card {
  width: 360px;
  max-width: 100%;
  padding: 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-base);
  border-radius: var(--radius-card);
  box-shadow: 0 18px 44px rgba(16, 25, 50, 0.1);
}

.loading-overlay__spinner {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 4.5px solid var(--brand-tag-bg);
  border-top-color: var(--brand);
  border-right-color: var(--brand);
  animation: geoer-spin 1.2s linear infinite;
}

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

.loading-overlay__title {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
}

.loading-overlay__sub {
  font-size: 13px;
  color: var(--text-faint);
}

/* prefers-reduced-motion：静态显示，不转 */
@media (prefers-reduced-motion: reduce) {
  .loading-overlay__spinner {
    animation: none;
    border-top-color: var(--brand-tag-bg);
    border-right-color: var(--brand-tag-bg);
  }
}