/* Kole UI Mobile · PullRefresh 样式 — 对齐移动端规格 §4
   下拉刷新：Pointer Events 手势，位移以纵向为主；阈值默认 60px；
   指示区 role=status + aria-live=polite，状态文字变化被读屏播报。 */

.kole-m-pullrefresh {
  /* 组件级变量：阈值与实时位移（业务侧可覆盖阈值） */
  --kole-m-pullrefresh-threshold: 60px;
  --kole-m-pullrefresh-offset: 0px;
  position: relative;
  overflow: hidden;
  font-family: var(--kole-font-family);
  color: var(--kole-color-text-body);
}

.kole-m-pullrefresh__indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--kole-space-8);
  height: var(--kole-m-pullrefresh-offset);
  overflow: hidden;
  color: var(--kole-color-text-secondary);
  font-size: var(--kole-m-font-size-label);
  transition: height var(--kole-m-duration-refresh) var(--kole-ease-out);
}

/* 刷新中：指示区固定为阈值高度，旋转图标常显 */
.kole-m-pullrefresh.is-refreshing .kole-m-pullrefresh__indicator {
  height: var(--kole-m-pullrefresh-threshold);
}

/* 完成提示：短暂显示后由业务侧复位 */
.kole-m-pullrefresh.is-done .kole-m-pullrefresh__indicator {
  height: var(--kole-m-pullrefresh-threshold);
  color: var(--kole-color-success);
}

.kole-m-pullrefresh__spinner {
  flex: 0 0 auto;
  width: var(--kole-icon-size-20);
  height: var(--kole-icon-size-20);
  box-sizing: border-box;
  border: 2px solid var(--kole-color-border);
  border-top-color: var(--kole-color-brand);
  border-radius: 50%;
}

.kole-m-pullrefresh.is-pulling .kole-m-pullrefresh__spinner {
  transform: rotate(calc(var(--kole-m-pullrefresh-offset) * 3));
}

.kole-m-pullrefresh.is-ready .kole-m-pullrefresh__spinner,
.kole-m-pullrefresh.is-refreshing .kole-m-pullrefresh__spinner,
.kole-m-pullrefresh.is-done .kole-m-pullrefresh__spinner {
  animation: kole-m-pullrefresh-spin 800ms linear infinite;
}

.kole-m-pullrefresh.is-ready .kole-m-pullrefresh__spinner {
  border-top-color: var(--kole-color-success);
}

.kole-m-pullrefresh.is-done .kole-m-pullrefresh__spinner {
  border-color: var(--kole-color-success);
  animation: none;
}

@keyframes kole-m-pullrefresh-spin {
  to { transform: rotate(360deg); }
}

.kole-m-pullrefresh__content {
  transform: translateY(var(--kole-m-pullrefresh-offset));
  transition: transform var(--kole-m-duration-refresh) var(--kole-ease-out);
  /* 纵向滚动交给浏览器，横向手势不被本组件截获 */
  touch-action: pan-y;
}

/* 非手势的等价入口（规格 §4.6）：手势不可用时仍能刷新 */
.kole-m-pullrefresh__fallback {
  display: block;
  box-sizing: border-box;
  width: 100%;
  min-height: var(--kole-m-touch-target);
  border: 0;
  border-top: 1px solid var(--kole-color-border);
  background: var(--kole-color-card-bg);
  color: var(--kole-color-brand);
  font-family: inherit;
  font-size: var(--kole-m-font-size-label);
  cursor: pointer;
  touch-action: manipulation;
}

.kole-m-pullrefresh__fallback:focus-visible {
  outline: 2px solid var(--kole-color-focus-ring);
  outline-offset: 2px;
}

.kole-m-pullrefresh__fallback:active { background: var(--kole-color-brand-bg); }