/* ========================================
   Loading 遮罩和骨架屏样式
   配合 js/utils/loading.js 使用
   ======================================== */

/* 全屏 Loading 遮罩 */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9998;
  gap: 1rem;
  animation: loadingFadeIn 0.2s ease-out;
}

[data-theme="dark"] .loading-overlay {
  background: rgba(0, 0, 0, 0.6);
}

/* 旋转动画 */
.loading-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: loadingSpin 0.8s linear infinite;
}

.loading-message {
  color: #ffffff;
  font-size: var(--font-size-sm, 0.875rem);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

@keyframes loadingSpin {
  to { transform: rotate(360deg); }
}

@keyframes loadingFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  .loading-spinner {
    animation-duration: 1.5s;
  }
  .loading-overlay {
    animation: none;
  }
}