/* ═══════════════════════════════════════════════════════════════════════
   SHOPLINE AI Cascade Customizer —— 级联定制器买家端样式（复用普通定制器规格）
   -----------------------------------------------------------------------
   设计原则（2026-09-17 统一改造）：
     · 字段 DOM 与类名统一由 ai-customizer.js 的 renderFields 产出（ai-customizer__*），
       卡片 / 字段 / 上传 / 选项 / 动作按钮的视觉规格**直接来自**
       ai-customizer.css + ai-customizer-layout.css，不再维护第二套皮肤。
     · 本文件仅保留级联专有的三件事，且全部沿用普通定制器的设计令牌：
         1) 配置拉取期间的加载骨架屏（ai-cascade-customizer__loading / __skeleton*）；
         2) 级联「步骤分组」节点壳（ai-cascade-customizer__node*）；
         3) 生图按钮区与结果预览（ai-cascade-customizer__actions / __preview*）。
   ═══════════════════════════════════════════════════════════════════════ */

/* 根容器：间距 / 字体 / 颜色沿用 .ai-customizer，这里只补一个占位宽度。 */
.ai-cascade-customizer {
  width: 100%;
}

/* ── 加载态骨架屏 ── */
.ai-cascade-customizer__loading {
  display: none;
}

.ai-cascade-customizer--loading .ai-cascade-customizer__loading {
  display: block;
}

/* 骨架屏不再画卡片（普通定制器的 __card 是扁平透明容器），只用栅格占位线条示意。 */
.ai-cascade-customizer__skeleton {
  display: grid;
  gap: 12px;
}

.ai-cascade-customizer__skeleton-line {
  height: 14px;
  border-radius: 7px;
  background: linear-gradient(90deg, #f0f0f0 25%, #e8e8e8 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: ai-cascade-shimmer 1.6s infinite linear;
}

.ai-cascade-customizer__skeleton-line--title {
  height: 22px;
  width: 55%;
}

.ai-cascade-customizer__skeleton-line--short {
  width: 35%;
}

.ai-cascade-customizer__skeleton-line--medium {
  width: 70%;
}

.ai-cascade-customizer__skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
  gap: 12px;
  margin: 10px 0;
}

.ai-cascade-customizer__skeleton-tile {
  aspect-ratio: 1 / 1;
  border-radius: 10px;
  background: linear-gradient(90deg, #f0f0f0 25%, #e8e8e8 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: ai-cascade-shimmer 1.6s infinite linear;
}

@keyframes ai-cascade-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── 级联步骤分组（字段本身仍沿用普通定制器 ai-customizer__* 样式）── */
.ai-cascade-customizer__node {
  margin: 0;
}

.ai-cascade-customizer__node--hidden {
  display: none;
}

.ai-cascade-customizer__node > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  list-style: none;
}

.ai-cascade-customizer__node > summary::-webkit-details-marker {
  display: none;
}

.ai-cascade-customizer__node > summary > i {
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.18s ease;
}

.ai-cascade-customizer__node:not([open]) > summary > i {
  transform: rotate(-45deg);
}

.ai-cascade-customizer__node-label {
  display: flex;
  align-items: center;
  gap: 10px;
  /* 与普通定制器字段标签同源（--sort-body3-*） */
  font-family: var(--sort-body-font, 'Inter', sans-serif);
  font-size: var(--sort-body3-size, 18px);
  font-weight: calc(var(--sort-body-font-weight, 400) + 300);
  line-height: var(--sort-body-line-height, 1.4);
  letter-spacing: var(--sort-body-letter-spacing, normal);
  color: rgb(var(--color-text, 22, 22, 22));
}

.ai-cascade-customizer__node-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--ai-theme-color, #161616);
  /* 【要点】不能用写死的 #fff：主题色为近白时（如 #ffffff）会「白底白字」直接消失。
     普通定制器已经把「在 --ai-theme-color 上可读的文字色」算成 --ai-theme-contrast，
     这里直接复用该令牌，配色推导与主定制器同源。 */
  color: var(--ai-theme-contrast, #fff);
  /* 主题色与页面底色同为白时，圆本身会看不见，用卡片描边色勾一圈保证轮廓可辨。 */
  border: 1px solid var(--ai-card-border-color, transparent);
  font-size: 12px;
  font-weight: 700;
}

.ai-cascade-customizer__node-heading {
  margin: 0;
}

/* 节点内字段与子节点沿用 .ai-customizer__shell > .ai-customizer__form 的 18px 间距，
   保证级联与普通定制器的字段节奏完全一致。 */
.ai-cascade-customizer__node-body {
  display: grid;
  gap: 18px;
  align-content: start;
  min-width: 0;
  padding-top: 16px;
}

/* ── 生图按钮区与结果预览 ── */
.ai-cascade-customizer__actions {
  display: grid;
  gap: 12px;
}

.ai-cascade-customizer__preview {
  display: grid;
  gap: 10px;
}

.ai-cascade-customizer__preview-loading {
  padding: 14px 16px;
  border: 1px solid var(--ai-card-border-color, #e2e2e2);
  border-radius: 10px;
  color: var(--aic-muted, #646464);
  font-size: 14px;
}

.ai-cascade-customizer__preview-image {
  width: 100%;
  border: 1px solid var(--ai-card-border-color, #e2e2e2);
  border-radius: 12px;
  object-fit: contain;
}

/* ── 状态与提示（配置无效 / 上传失败等极端态）── */
.ai-cascade-customizer__status {
  margin: 0;
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 14px;
}

.ai-cascade-customizer__status--error {
  border: 1px solid #ffd1d1;
  background: #fff2f2;
  color: #b00020;
}

.ai-cascade-customizer__status--info {
  border: 1px solid #e5e5e5;
  background: #f8f8f8;
  color: #6b6b6b;
}

/* 级联顶部状态栏复用普通定制器 DOM，但按语义切换颜色和图标。 */
.ai-customizer__status.ai-customizer__status--info {
  border-color: #cfe0ff;
  border-left-color: #2f6fed;
  background: #f4f7ff;
  color: #234b93;
}

.ai-customizer__status.ai-customizer__status--warning {
  border-color: #f0d9a8;
  border-left-color: #e0962a;
  background: #fffaf0;
  color: #6b4e16;
}

.ai-customizer__status.ai-customizer__status--error {
  border-color: #f1c4c8;
  border-left-color: #d9232e;
  background: #fff4f5;
  color: #8f1720;
}

.ai-customizer__status.ai-customizer__status--success {
  border-color: #bde3cb;
  border-left-color: #1f9d55;
  background: #f1fbf4;
  color: #176b3a;
}

.ai-customizer__status.ai-customizer__status--info::before {
  content: "i";
  background: #2f6fed;
}

.ai-customizer__status.ai-customizer__status--warning::before {
  content: "!";
  background: #e0962a;
}

.ai-customizer__status.ai-customizer__status--error::before {
  content: "×";
  background: #d9232e;
}

.ai-customizer__status.ai-customizer__status--success::before {
  content: "✓";
  background: #1f9d55;
}

/* 节点壳的最后覆盖层：复用普通定制器 disclosure 的间距、字体和折叠按钮。 */
/* 折叠节点保持普通字段的单列布局，按钮位于字段行末尾。 */
.ai-cascade-customizer__node.ai-customizer__field-disclosure {
  position: relative;
}

.ai-cascade-customizer__node-fields-row {
  position: relative;
  display: block;
  min-width: 0;
}

.ai-cascade-customizer__node-fields-row--has-toggle {
  padding-right: 30px;
}

.ai-cascade-customizer__node-fields-row > .ai-customizer__field-disclosure,
.ai-cascade-customizer__node-fields-row > .ai-customizer__field {
  min-width: 0;
}

.ai-cascade-customizer__node-toggle-button {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
  display: inline-grid;
  width: 24px;
  height: 24px;
  margin: 0;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 6px;
  color: inherit;
  background: transparent;
  cursor: pointer;
}

.ai-cascade-customizer__node-toggle-button:hover,
.ai-cascade-customizer__node-toggle-button:focus-visible {
  background: rgba(0, 0, 0, .06);
  outline: none;
}

.ai-cascade-customizer__node-toggle-button .ai-customizer__disclosure-icon {
  margin: 0 !important;
}

.ai-cascade-customizer__node-toggle-button[aria-expanded="true"] .ai-customizer__disclosure-icon {
  transform: rotate(0deg) !important;
}

.ai-cascade-customizer__node-toggle-button[aria-expanded="false"] .ai-customizer__disclosure-icon {
  transform: rotate(-90deg) !important;
}

.ai-cascade-customizer__node--collapsed > .ai-cascade-customizer__node-children {
  display: none;
}

.ai-cascade-customizer__node--collapsed > .ai-cascade-customizer__node-body .ai-cascade-customizer__node-fields-row > *:not(:first-child) {
  display: none;
}

.ai-cascade-customizer__node > .ai-cascade-customizer__node-body {
  min-width: 0;
}

.ai-cascade-customizer__node > .ai-cascade-customizer__node-children {
  /* 每一个 node-children 都代表一个层级行；孙级会在子节点内部自然另起一行。 */
  display: grid;
  gap: 18px;
  min-width: 0;
}

.ai-cascade-customizer__node-children > .ai-cascade-customizer__node {
  width: 100%;
  min-width: 0;
}

/* 同一 groupId 的兄弟节点先编译成一个完整宽度字段行，再在下一行承载活动分支。
   这样普通定制器的六列图片卡只在完整容器中计算，不会再被半宽节点压成细条。 */
.ai-cascade-customizer__group {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.ai-cascade-customizer__group-selector,
.ai-cascade-customizer__group-branches {
  min-width: 0;
}

.ai-cascade-customizer__group-branches {
  display: grid;
  gap: 18px;
}

.ai-cascade-customizer__node-children:empty {
  display: none;
}

.ai-cascade-customizer__node .ai-customizer__disclosure-label {
  font: inherit;
  color: inherit;
}

.ai-cascade-customizer__node .ai-customizer__disclosure-text {
  color: inherit;
  font-size: 16px;
  font-weight: 750;
  line-height: 1.35;
}

.ai-cascade-customizer__node .ai-customizer__disclosure-icon {
  margin: 0 !important;
}

.ai-cascade-customizer__node-body {
  padding-top: 0;
  padding-right: 0;
}

/* 必须放在所有节点布局规则之后：条件不匹配的分支绝不能被后续 display 规则重新显示。 */
.ai-cascade-customizer__node.ai-cascade-customizer__node--hidden {
  display: none !important;
}

/* ============================================================
 * 上传槽状态（级联专有）
 *   背景：级联在「选图」瞬间就把图上传到服务端（普通定制器是提交时才上传），
 *         因此必须显式表达「上传中 / 上传失败」两种原设计没有的状态，
 *         否则买家只看到一个静止的缩略图，无从判断能否继续操作。
 *   作用域：仅 .ai-cascade-customizer 根下生效；普通定制器不加这两个状态类，零影响。
 * ============================================================ */
.ai-cascade-customizer .ai-customizer__upload.is-uploading {
  cursor: progress;
}

.ai-cascade-customizer .ai-customizer__upload.is-uploading .ai-customizer__upload-preview {
  opacity: .5;
}

/* 进度浮层：盖住整个格子，同时吞掉点击，避免上传中再打开一次文件选择框。 */
.ai-cascade-customizer__upload-progress {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  padding: 2px;
  place-items: center;
  border-radius: var(--aic-cell-radius, 8px);
  background: rgba(0, 0, 0, .45);
  color: #fff;
  cursor: progress;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.25;
  text-align: center;
}

.ai-cascade-customizer__upload-retry {
  position: absolute;
  z-index: 3;
  bottom: 4px;
  left: 50%;
  padding: 2px 8px;
  border: 0;
  border-radius: 999px;
  background: #d92d20;
  color: #fff;
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
  line-height: 1.6;
  white-space: nowrap;
  transform: translateX(-50%);
  box-shadow: 0 2px 6px rgba(0, 0, 0, .22);
}

.ai-cascade-customizer__upload-retry:hover,
.ai-cascade-customizer__upload-retry:focus-visible {
  background: #b42318;
  outline: none;
}

.ai-cascade-customizer .ai-customizer__upload.is-upload-failed .ai-customizer__upload-preview {
  border-color: #d92d20;
  box-shadow: 0 0 0 2px rgba(217, 45, 32, .35);
}