/**
 * AKSRT Extended Components — 时间轴 / 步骤向导 / 九宫格 / 定价卡片 /
 *                              Toggle 开关 / 自定义复选框 / 数字步进器
 * ------------------------------------------------------------
 * 全部使用 aksrt- 前缀，保持原生语义可访问性。
 */

/* ============================================================
 * 1. 时间轴 — .aksrt-timeline
 * ============================================================ */
.aksrt-timeline {
  position: relative;
  padding-left: 28px;
  margin: 0;
  list-style: none;
}

/* 竖线 */
.aksrt-timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--color-line, rgba(50, 50, 50, 0.1));
  border-radius: 1px;
}

.aksrt-timeline__item {
  position: relative;
  padding-bottom: 24px;
}

.aksrt-timeline__item:last-child {
  padding-bottom: 0;
}

/* 圆点 */
.aksrt-timeline__dot {
  position: absolute;
  left: -24px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--surface-1, #fff);
  box-shadow: 0 0 0 2px var(--color-primary-soft, rgba(240, 68, 148, 0.12));
  z-index: 1;
}

/* 空心圆点变体 */
.aksrt-timeline__dot--outline {
  background: var(--surface-1, #fff);
  border: 2px solid var(--color-primary);
  box-shadow: none;
}

/* 灰色圆点 — 已完成/已过去 */
.aksrt-timeline__dot--muted {
  background: var(--color-ink-4, #999);
  box-shadow: 0 0 0 2px var(--surface-2, #eee);
}

.aksrt-timeline__time {
  display: block;
  font-size: 12px;
  color: var(--color-ink-4, #999);
  margin-bottom: 4px;
}

.aksrt-timeline__title {
  font-weight: 600;
  color: var(--color-ink, #333);
  margin-bottom: 4px;
}

.aksrt-timeline__content {
  font-size: 14px;
  color: var(--color-ink-3, #777);
  line-height: 1.6;
}

/* ============================================================
 * 2. 步骤向导 — .aksrt-steps
 * ============================================================ */
.aksrt-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: aksrt-step;
}

.aksrt-steps__item {
  flex: 1;
  position: relative;
  text-align: center;
  counter-increment: aksrt-step;
}

/* 连接线 */
.aksrt-steps__item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 16px;
  left: calc(50% + 20px);
  right: calc(-50% + 20px);
  height: 2px;
  background: var(--color-line, rgba(50, 50, 50, 0.1));
}

.aksrt-steps__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--surface-2, #eee);
  color: var(--color-ink-3, #777);
  font-size: 14px;
  font-weight: 700;
  margin: 0 auto 8px;
  position: relative;
  z-index: 1;
}

.aksrt-steps__item--active .aksrt-steps__icon {
  background: var(--color-primary);
  color: var(--color-on-primary, #fff);
}

.aksrt-steps__item--done .aksrt-steps__icon {
  background: var(--color-success);
  color: #fff;
}

.aksrt-steps__item--done:not(:last-child)::after {
  background: var(--color-success);
}

.aksrt-steps__label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ink-3, #777);
}

.aksrt-steps__item--active .aksrt-steps__label {
  color: var(--color-primary);
}

.aksrt-steps__item--done .aksrt-steps__label {
  color: var(--color-success);
}

/* 垂直模式 */
.aksrt-steps--vertical {
  flex-direction: column;
  gap: 0;
  padding-left: 20px;
}

.aksrt-steps--vertical .aksrt-steps__item {
  text-align: left;
  padding-left: 28px;
  padding-bottom: 20px;
}

.aksrt-steps--vertical .aksrt-steps__item:not(:last-child)::after {
  top: 34px;
  left: 36px;
  right: auto;
  width: 2px;
  height: calc(100% - 34px);
}

.aksrt-steps--vertical .aksrt-steps__icon {
  position: absolute;
  left: 0;
  margin: 0;
}

/* ============================================================
 * 3. 九宫格 — .aksrt-img-grid
 * ============================================================ */
.aksrt-img-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  border-radius: var(--radius, 8px);
  overflow: hidden;
}

.aksrt-img-grid img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
  cursor: pointer;
  transition: transform .2s ease;
}

.aksrt-img-grid img:hover {
  transform: scale(1.03);
}

/* 自适应列数 */
.aksrt-img-grid--2 { grid-template-columns: repeat(2, 1fr); }
.aksrt-img-grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 480px) {
  .aksrt-img-grid--4 { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
 * 5. Toggle 开关 — .aksrt-toggle (纯 CSS + :checked)
 *    保持原生 <input> 可访问性
 * ============================================================ */
.aksrt-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
  gap: 8px;
}

.aksrt-toggle__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.aksrt-toggle__track {
  position: relative;
  width: var(--aksrt-toggle-w, 44px);
  height: var(--aksrt-toggle-h, 24px);
  background: var(--surface-3, #e8e8e8);
  border-radius: var(--aksrt-toggle-h, 24px);
  transition: background .2s ease;
  flex-shrink: 0;
}

.aksrt-toggle__track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: calc(var(--aksrt-toggle-h, 24px) - 4px);
  height: calc(var(--aksrt-toggle-h, 24px) - 4px);
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
  transition: transform .2s ease;
}

/* Checked */
.aksrt-toggle__input:checked + .aksrt-toggle__track {
  background: var(--color-primary);
}

.aksrt-toggle__input:checked + .aksrt-toggle__track::after {
  transform: translateX(calc(var(--aksrt-toggle-w, 44px) - var(--aksrt-toggle-h, 24px)));
}

/* Focus-visible */
.aksrt-toggle__input:focus-visible + .aksrt-toggle__track {
  box-shadow: var(--focus-ring, 0 0 2px 3px rgba(253, 83, 161, 0.4));
}

/* Disabled */
.aksrt-toggle__input:disabled + .aksrt-toggle__track {
  opacity: 0.5;
  cursor: not-allowed;
}

.aksrt-toggle__label {
  font-size: 14px;
  color: var(--color-ink-2, #4e5358);
}

/* ============================================================
 * 6. 自定义复选框 — .aksrt-checkbox (纯 CSS + :checked)
 *    保持原生 <input type="checkbox"> 可访问性
 * ============================================================ */
.aksrt-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.aksrt-checkbox__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.aksrt-checkbox__box {
  position: relative;
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-line, rgba(50, 50, 50, 0.15));
  border-radius: 4px;
  background: var(--surface-1, #fff);
  transition: background .15s ease, border-color .15s ease;
  flex-shrink: 0;
}

/* 打勾 SVG */
.aksrt-checkbox__box::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 5px;
  width: 5px;
  height: 9px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg) scale(0);
  transition: transform .15s ease;
}

.aksrt-checkbox__input:checked + .aksrt-checkbox__box {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.aksrt-checkbox__input:checked + .aksrt-checkbox__box::after {
  transform: rotate(45deg) scale(1);
}

.aksrt-checkbox__input:focus-visible + .aksrt-checkbox__box {
  box-shadow: var(--focus-ring, 0 0 2px 3px rgba(253, 83, 161, 0.4));
}

.aksrt-checkbox__input:disabled + .aksrt-checkbox__box {
  opacity: 0.5;
  cursor: not-allowed;
}

.aksrt-checkbox__label {
  font-size: 14px;
  color: var(--color-ink-2, #4e5358);
}

/* ============================================================
 * 7. 数字步进器 — .aksrt-stepper
 * ============================================================ */
.aksrt-stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-line, rgba(50, 50, 50, 0.1));
  border-radius: var(--radius, 8px);
  overflow: hidden;
  height: var(--aksrt-stepper-h, 36px);
}

.aksrt-stepper__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--aksrt-stepper-h, 36px);
  height: 100%;
  background: var(--surface-2, #eee);
  color: var(--color-ink-2, #4e5358);
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: background .15s ease, color .15s ease;
  user-select: none;
}

.aksrt-stepper__btn:hover {
  background: var(--surface-3, #e8e8e8);
  color: var(--color-ink, #333);
}

.aksrt-stepper__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.aksrt-stepper__input {
  width: 48px;
  height: 100%;
  border: none;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink, #333);
  background: var(--surface-1, #fff);
  -moz-appearance: textfield;
}

.aksrt-stepper__input::-webkit-outer-spin-button,
.aksrt-stepper__input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.aksrt-stepper__input:focus {
  outline: none;
  background: var(--color-primary-softer, rgba(240, 68, 148, 0.05));
}

/* ============================================================
 * 8. 头像尺寸变量系统 — .aksrt-avatar--{size}
 * ============================================================ */
.aksrt-avatar--xs { width: var(--aksrt-avatar-size-xs); height: var(--aksrt-avatar-size-xs); }
.aksrt-avatar--sm { width: var(--aksrt-avatar-size-sm); height: var(--aksrt-avatar-size-sm); }
.aksrt-avatar    { width: var(--aksrt-avatar-size);     height: var(--aksrt-avatar-size); }
.aksrt-avatar--lg { width: var(--aksrt-avatar-size-lg); height: var(--aksrt-avatar-size-lg); }
.aksrt-avatar--xl { width: var(--aksrt-avatar-size-xl); height: var(--aksrt-avatar-size-xl); }

/* ============================================================
 * 9. 涟漪点击效果 — .aksrt-ripple
 *    容器加此类，点击时 JS 注入 span.aksrt-ripple__wave
 * ============================================================ */
.aksrt-ripple {
  position: relative;
  overflow: hidden;
}

.aksrt-ripple__wave {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  transform: scale(0);
  animation: aksrtRippleWave .6s ease-out forwards;
  pointer-events: none;
}

@keyframes aksrtRippleWave {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Runtime broad ripple (.aksrt-wave injected into .but/.btn).
 * MUST stay out of flow — missing absolute made header CTA grow on click. */
.aksrt-wave {
  position: absolute !important;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  pointer-events: none !important;
  z-index: 1;
  transform: scale(0);
  animation: aksrtWaveRipple 0.6s ease-out forwards;
}

@keyframes aksrtWaveRipple {
  to {
    transform: scale(1);
    opacity: 0;
  }
}

.nowave {
  overflow: hidden;
}

/* ============================================================
 * 10. 模态框堆叠动画 — 父模态缩小
 * ============================================================ */
.modal-stacked .modal-dialog {
  transition: transform .25s var(--ease, ease), filter .25s ease;
}

.modal-stacked .modal-dialog.modal-behind {
  transform: scale(0.92);
  filter: brightness(0.85);
  pointer-events: none;
}