/* ===== 自适应学习引擎专用样式 - pc-learning-plan.css ===== */

/* 学科选择 Tabs 容器 */
.lp-subject-tabs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

/* 学段 Tab 行 */
.subj-level-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.subj-level-tab {
  padding: 5px 16px;
  border-radius: 6px;
  border: 1.5px solid var(--border, #e5e7eb);
  background: var(--bg-secondary, #f1f5f9);
  color: var(--text-secondary, #64748b);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.15s;
}
.subj-level-tab:hover {
  border-color: var(--primary, #3b82f6);
  color: var(--primary, #3b82f6);
}
.subj-level-tab.active {
  background: var(--primary, #3b82f6);
  color: #fff;
  border-color: var(--primary, #3b82f6);
}

/* 学科按钮行 */
.subj-level-btns {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 4px 0 2px;
  border-top: 1px solid var(--border, #e5e7eb);
}

/* 学科按钮 */
.lp-tab-btn {
  padding: 6px 18px;
  border-radius: 20px;
  border: 1px solid var(--border, #e5e7eb);
  background: var(--card, #fff);
  color: var(--text-secondary, #64748b);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s;
}
.lp-tab-btn:hover {
  border-color: var(--primary, #3b82f6);
  color: var(--primary, #3b82f6);
}
.lp-tab-btn.active {
  background: var(--primary, #3b82f6);
  color: #fff;
  border-color: var(--primary, #3b82f6);
}

/* 两列布局 */
.lp-two-col {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 16px;
  align-items: start;
}
.lp-left-col { display: flex; flex-direction: column; gap: 16px; }
.lp-right-col { display: flex; flex-direction: column; gap: 16px; }

/* ─── AI建议卡片 ─── */
.lp-plan-card { padding: 20px; }
.lp-plan-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.lp-plan-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}
.lp-plan-meta {
  font-size: 12px;
  color: var(--text-muted);
}
.lp-ai-text {
  white-space: pre-wrap;
  line-height: 1.85;
  font-size: 13.5px;
  color: var(--text-primary);
  background: var(--bg-secondary);
  padding: 14px 16px;
  border-radius: 8px;
  border-left: 3px solid var(--primary);
  margin-bottom: 16px;
  max-height: 220px;
  overflow-y: auto;
}
.lp-plan-loading {
  text-align: center;
  padding: 32px 0;
  color: var(--text-muted);
  font-size: 14px;
}
.lp-plan-empty {
  text-align: center;
  padding: 28px 0;
  color: var(--text-muted);
  font-size: 14px;
}
.lp-plan-empty .lp-empty-icon { font-size: 36px; margin-bottom: 8px; }
.lp-plan-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.lp-cache-tag {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-secondary);
  padding: 2px 8px;
  border-radius: 10px;
}

/* ─── 推荐知识点列表 ─── */
.lp-nodes-card { padding: 20px; }
.lp-nodes-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.lp-node-list { display: flex; flex-direction: column; gap: 10px; }
.lp-node-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  border-radius: 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  transition: border-color 0.15s;
}
.lp-node-item:hover { border-color: var(--primary); }
.lp-node-row1 {
  display: flex;
  align-items: center;
  gap: 10px;
}
.lp-priority-badge {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  letter-spacing: 0.3px;
}
.lp-priority-1 { background: #fee2e2; color: #b91c1c; }
.lp-priority-2 { background: #fef3c7; color: #92400e; }
.lp-priority-3 { background: #dbeafe; color: #1e40af; }
.lp-node-name {
  flex: 1;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}
.lp-prereq-warn {
  font-size: 11px;
  color: #f59e0b;
  background: #fef3c7;
  padding: 2px 8px;
  border-radius: 10px;
  flex-shrink: 0;
}
.lp-mastery-bar {
  display: flex;
  align-items: center;
  gap: 8px;
}
.lp-mastery-label {
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
  width: 70px;
}
.lp-bar-track {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.lp-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, #667eea, #764ba2);
  transition: width 0.3s ease;
}
.lp-bar-fill.low    { background: #ef4444; }
.lp-bar-fill.medium { background: #f59e0b; }
.lp-bar-fill.high   { background: #10b981; }
.lp-bar-score {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  flex-shrink: 0;
  width: 30px;
  text-align: right;
}
/* 三维进度条 */
.lp-dim-bars { display: flex; flex-direction: column; gap: 4px; }
.lp-dim-row {
  display: flex;
  align-items: center;
  gap: 6px;
}
.lp-dim-label {
  font-size: 10px;
  color: var(--text-muted);
  width: 24px;
  flex-shrink: 0;
}
.lp-dim-track {
  flex: 1;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.lp-dim-fill {
  height: 100%;
  border-radius: 2px;
}
.lp-dim-fill.comp { background: #3b82f6; }
.lp-dim-fill.mem  { background: #10b981; }
.lp-dim-fill.app  { background: #8b5cf6; }
.lp-dim-score {
  font-size: 10px;
  color: var(--text-muted);
  width: 20px;
  text-align: right;
  flex-shrink: 0;
}
.lp-node-reason {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}
.lp-node-actions { display: flex; gap: 8px; justify-content: flex-end; }
.lp-start-btn {
  font-size: 12px;
  padding: 5px 14px;
  border-radius: 16px;
  border: 1px solid var(--primary);
  color: var(--primary);
  background: var(--card);
  cursor: pointer;
  transition: all 0.15s;
  font-weight: 500;
}
.lp-start-btn:hover {
  background: var(--primary);
  color: #fff;
}

/* ─── 推荐练习题卡片 ─── */
.lp-questions-card { padding: 20px; }
.lp-questions-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.lp-question-list { display: flex; flex-direction: column; gap: 10px; }
.lp-question-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.lp-question-header {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  cursor: pointer;
  background: var(--card);
  transition: background 0.15s;
}
.lp-question-header:hover { background: var(--bg-secondary); }
.lp-question-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lp-question-content {
  flex: 1;
  font-size: 13.5px;
  color: var(--text-primary);
  line-height: 1.6;
}
.lp-question-tags {
  display: flex;
  gap: 4px;
  align-items: center;
  flex-shrink: 0;
}
.lp-q-tag {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.lp-expand-icon { font-size: 12px; color: var(--text-muted); flex-shrink: 0; }
.lp-question-body {
  display: none;
  padding: 0 14px 12px;
  background: var(--bg-secondary);
}
.lp-question-body.open { display: block; }
.lp-options { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.lp-option {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 4px 0;
}
.lp-option.correct { color: #10b981; font-weight: 600; }
.lp-answer-row {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.lp-answer-val { color: #10b981; font-weight: 600; }
.lp-analysis {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.65;
  background: var(--card);
  padding: 8px 10px;
  border-radius: 6px;
  border-left: 3px solid #10b981;
}

/* ─── 雷达图卡片 ─── */
.lp-radar-card { padding: 20px; }
.lp-radar-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.lp-radar-wrap {
  display: flex;
  justify-content: center;
}
.lp-radar-canvas {
  display: block;
}
.lp-radar-legend {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 12px;
}
.lp-legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-secondary);
}
.lp-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.lp-radar-hint {
  margin-top: 12px;
  padding: 10px 12px;
  background: var(--bg-secondary);
  border-radius: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ─── 本周进度卡片 ─── */
.lp-week-card { padding: 20px; }
.lp-week-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.lp-week-stats {
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
}
.lp-week-stat {
  text-align: center;
  flex: 1;
  border-right: 1px solid var(--border);
  padding: 0 8px;
}
.lp-week-stat:last-child { border-right: none; }
.lp-week-num {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.lp-week-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 3px;
}
.lp-dim-summary { display: flex; flex-direction: column; gap: 8px; }
.lp-dim-summary-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.lp-dim-summary-label {
  font-size: 12px;
  color: var(--text-secondary);
  width: 32px;
  flex-shrink: 0;
}
.lp-dim-summary-track {
  flex: 1;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.lp-dim-summary-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.4s ease;
}
.lp-dim-summary-fill.comp { background: #3b82f6; }
.lp-dim-summary-fill.mem  { background: #10b981; }
.lp-dim-summary-fill.app  { background: #8b5cf6; }
.lp-dim-summary-val {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  width: 28px;
  text-align: right;
  flex-shrink: 0;
}

/* ─── 首页今日推荐摘要 ─── */
.lp-home-card { padding: 16px 20px; }
.lp-home-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.lp-home-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}
.lp-home-link {
  font-size: 12px;
  color: var(--primary);
  text-decoration: none;
}
.lp-home-nodes {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}
.lp-home-node {
  display: flex;
  align-items: center;
  gap: 10px;
}
.lp-home-node-name {
  flex: 1;
  font-size: 13px;
  color: var(--text-primary);
}
.lp-home-node-score {
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.lp-home-empty {
  text-align: center;
  padding: 16px 0;
  color: var(--text-muted);
  font-size: 13px;
}