/**
 * B 教研深层 T04：教案流程全景 — 样式
 * 前缀: rpf- (research-plan-flow)
 */

/* ── 页面布局 ── */
.rpf-page {
  padding: 20px;
  max-width: 1400px;
  margin: 0 auto;
}

.rpf-page h2 {
  font-size: 20px;
  font-weight: 600;
  color: #1a1a2e;
  margin: 0 0 16px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.rpf-page h3 {
  font-size: 16px;
  font-weight: 600;
  color: #333;
  margin: 0 0 12px 0;
}

/* ── 顶部筛选 ── */
.rpf-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  background: #fff;
  padding: 16px 20px;
  border-radius: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.rpf-header label {
  font-size: 14px;
  font-weight: 500;
  color: #555;
  white-space: nowrap;
}

.rpf-header select {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 14px;
  color: #333;
  background: #fff;
  outline: none;
  max-width: 400px;
}

.rpf-header select:focus {
  border-color: #F18D24;
}

/* ── 链路树形容器 ── */
.rpf-chain {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

/* ── 链路节点卡片 ── */
.rpf-node {
  background: #fff;
  border-radius: 10px;
  padding: 16px 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  border-left: 4px solid #ddd;
  position: relative;
  margin-bottom: 0;
}

.rpf-node + .rpf-node {
  margin-top: 0;
}

/* 节点层级颜色 */
.rpf-node-level-0 { border-left-color: #F18D24; }   /* 简案 - 橙色 */
.rpf-node-level-1 { border-left-color: #4285f4; }   /* 详案 - 蓝色 */
.rpf-node-level-2 { border-left-color: #34a853; }   /* 课件 - 绿色 */
.rpf-node-level-3 { border-left-color: #9c27b0; }   /* 教学计划 - 紫色 */

/* ── 节点标题 ── */
.rpf-node-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.rpf-node-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.rpf-node-level-0 .rpf-node-icon { background: #fff3e0; color: #F18D24; }
.rpf-node-level-1 .rpf-node-icon { background: #e8f0fe; color: #4285f4; }
.rpf-node-level-2 .rpf-node-icon { background: #e6f4ea; color: #34a853; }
.rpf-node-level-3 .rpf-node-icon { background: #f3e5f5; color: #9c27b0; }

.rpf-node-title {
  font-size: 15px;
  font-weight: 600;
  color: #1a1a2e;
  flex: 1;
}

.rpf-node-title a {
  color: #1a1a2e;
  text-decoration: none;
}

.rpf-node-title a:hover {
  color: #F18D24;
  text-decoration: underline;
}

.rpf-node-badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 500;
}

.rpf-badge-draft { background: #fff3e0; color: #e65100; }
.rpf-badge-active { background: #e6f4ea; color: #2e7d32; }
.rpf-badge-archived { background: #f5f5f5; color: #888; }
.rpf-badge-published { background: #e8f0fe; color: #1565c0; }
.rpf-badge-reviewed { background: #e6f4ea; color: #2e7d32; }

/* ── 节点元信息 ── */
.rpf-node-meta {
  font-size: 12px;
  color: #888;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.rpf-node-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ── 树形连接线 ── */
.rpf-children {
  position: relative;
  padding-left: 32px;
  margin-top: 0;
}

.rpf-children::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #e0e0e0;
}

.rpf-child-item {
  position: relative;
  padding: 8px 0;
}

.rpf-child-item::before {
  content: '';
  position: absolute;
  left: -17px;
  top: 22px;
  width: 16px;
  height: 2px;
  background: #e0e0e0;
}

.rpf-child-item:last-child::after {
  content: '';
  position: absolute;
  left: -17px;
  top: 24px;
  bottom: 0;
  width: 2px;
  background: transparent;
}

/* ── 子节点卡片 ── */
.rpf-child-card {
  background: #fafafa;
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 12px 16px;
  transition: box-shadow 0.2s;
  cursor: pointer;
}

.rpf-child-card:hover {
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  border-color: #ddd;
}

.rpf-child-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.rpf-child-card-title {
  font-size: 14px;
  font-weight: 500;
  color: #333;
}

.rpf-child-card-title a {
  color: #333;
  text-decoration: none;
}

.rpf-child-card-title a:hover {
  color: #F18D24;
}

.rpf-child-card-meta {
  font-size: 11px;
  color: #999;
  display: flex;
  gap: 12px;
}

/* ── 空状态 ── */
.rpf-empty {
  text-align: center;
  padding: 60px 20px;
  color: #999;
}

.rpf-empty .rpf-empty-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.rpf-empty p {
  font-size: 14px;
  margin: 0;
}

/* ── 底部教学计划列表 ── */
.rpf-section {
  margin-top: 24px;
}

.rpf-section-title {
  font-size: 15px;
  font-weight: 600;
  color: #333;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.rpf-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.rpf-table th {
  background: #f9f9f9;
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 600;
  color: #666;
  text-align: left;
  border-bottom: 1px solid #eee;
}

.rpf-table td {
  padding: 10px 14px;
  font-size: 13px;
  color: #333;
  border-bottom: 1px solid #f5f5f5;
}

.rpf-table tr:last-child td {
  border-bottom: none;
}

.rpf-table tr:hover td {
  background: #fafafa;
}

.rpf-table a {
  color: #4285f4;
  text-decoration: none;
}

.rpf-table a:hover {
  text-decoration: underline;
}

/* ── 关联操作弹窗 ── */
.rpf-link-modal {
  padding: 20px;
}

.rpf-link-modal label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: #555;
  margin-bottom: 6px;
}

.rpf-link-modal select,
.rpf-link-modal input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 14px;
  color: #333;
  outline: none;
  margin-bottom: 16px;
  box-sizing: border-box;
}

.rpf-link-modal select:focus,
.rpf-link-modal input:focus {
  border-color: #F18D24;
}

.rpf-link-modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ── 加载状态 ── */
.rpf-loading {
  text-align: center;
  padding: 40px;
  color: #999;
  font-size: 14px;
}

/* ── 链路概览条 ── */
.rpf-summary-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.rpf-summary-item {
  background: #fff;
  border-radius: 10px;
  padding: 14px 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
}

.rpf-summary-item .rpf-summary-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.rpf-summary-orange .rpf-summary-icon { background: #fff3e0; }
.rpf-summary-blue .rpf-summary-icon { background: #e8f0fe; }
.rpf-summary-green .rpf-summary-icon { background: #e6f4ea; }
.rpf-summary-purple .rpf-summary-icon { background: #f3e5f5; }

.rpf-summary-item .rpf-summary-count {
  font-size: 22px;
  font-weight: 700;
  color: #1a1a2e;
  line-height: 1.2;
}

.rpf-summary-item .rpf-summary-label {
  font-size: 12px;
  color: #888;
}