/**
 * 页面加载动画（全屏遮罩 + 头像呼吸 + 绿色圆点）
 * 移植自 AnZhiYu 主题 source/css/_global/loading.styl
 * 变量换成本站 Butterfly 的 --btf-*，以便跟随浅色 / 深色模式
 */

#loading-box {
  user-select: none;
}

#loading-box .loading-bg {
  display: flex;
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
  background: var(--btf-card-bg);
  z-index: 1001;
  opacity: 1;
  overflow: hidden;
  transition: .2s;
}

#loading-box .loading-bg::-webkit-scrollbar {
  display: none;
}

#loading-box .loading-img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: auto;
  border: 4px solid var(--btf-card-border);
  object-fit: cover;
  animation-duration: .2s;
  animation-name: btfLoadingAction;
  animation-iteration-count: infinite;
  animation-direction: alternate;
}

#loading-box .loading-image-dot {
  width: 30px;
  height: 30px;
  background: #6bdf8f;
  position: absolute;
  border-radius: 50%;
  border: 6px solid var(--btf-card-bg);
  top: 50%;
  left: 50%;
  transform: translate(18px, 24px);
}

#loading-box.loaded .loading-bg {
  opacity: 0;
  z-index: -1000;
}

@keyframes btfLoadingAction {
  0% {
    opacity: 1;
  }

  100% {
    opacity: .4;
  }
}