/* ============================================================
 * pc-assessment.css - 智能评测页面专用样式
 * ============================================================ */

/* ===== 学科选择网格 ===== */
.edu-subject-select-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
}

.edu-subject-select-item {
  border: 2px solid var(--border, #e5e7eb);
  border-radius: var(--radius, 12px);
  padding: 20px 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--card, #fff);
}
.edu-subject-select-item:hover {
  border-color: var(--primary, #3b82f6);
  box-shadow: 0 4px 12px rgba(59,130,246,0.15);
  transform: translateY(-2px);
}
.edu-subject-select-item.selected {
  border-color: var(--primary, #3b82f6);
  background: rgba(59,130,246,0.06);
  box-shadow: 0 4px 12px rgba(59,130,246,0.20);
}

/* ===== 评测进行区 ===== */
.assessment-container {
  max-width: 780px;
  margin: 0 auto;
}

/* 进度条 */
.assessment-progress-bar {
  margin-bottom: 16px;
}
.assessment-progress-info {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  font-size: 13px;
}
.assessment-progress-track {
  height: 8px;
  background: var(--border, #e5e7eb);
  border-radius: 4px;
  overflow: hidden;
}
.assessment-progress-fill {
  height: 100%;
  background: var(--primary, #3b82f6);
  border-radius: 4px;
  transition: width 0.4s ease;
}

/* 计时器 */
.assessment-timer {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary, #64748b);
  background: var(--bg-secondary, #f1f5f9);
  padding: 3px 10px;
  border-radius: 12px;
}

/* 题目卡片 */
.assessment-question-card {
  min-height: 400px;
}
.assessment-question-meta {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.assessment-question-text {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-primary, #1e293b);
  margin-bottom: 24px;
  white-space: pre-wrap;
}

/* 难度徽章颜色 */
.difficulty-1 { background: rgba(16,185,129,0.1) !important; color: #10b981 !important; }
.difficulty-2 { background: rgba(59,130,246,0.1) !important; color: #3b82f6 !important; }
.difficulty-3 { background: rgba(245,158,11,0.1) !important; color: #f59e0b !important; }
.difficulty-4 { background: rgba(239,68,68,0.1) !important; color: #ef4444 !important; }
.difficulty-5 { background: rgba(139,92,246,0.1) !important; color: #8b5cf6 !important; }

/* ===== 选项样式 ===== */
.assessment-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.assessment-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 2px solid var(--border, #e5e7eb);
  border-radius: var(--radius-sm, 8px);
  cursor: pointer;
  transition: all 0.15s;
  background: var(--card, #fff);
  font-size: 14px;
  line-height: 1.6;
}
.assessment-option:hover {
  border-color: var(--primary, #3b82f6);
  background: rgba(59,130,246,0.04);
}
.assessment-option.selected {
  border-color: var(--primary, #3b82f6);
  background: rgba(59,130,246,0.08);
}
.assessment-option.correct {
  border-color: #10b981;
  background: rgba(16,185,129,0.08);
}
.assessment-option.wrong {
  border-color: #ef4444;
  background: rgba(239,68,68,0.06);
}
.option-key {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-secondary, #f1f5f9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
  margin-top: 1px;
}
.assessment-option.selected .option-key {
  background: var(--primary, #3b82f6);
  color: #fff;
}
.assessment-option.correct .option-key {
  background: #10b981;
  color: #fff;
}
.assessment-option.wrong .option-key {
  background: #ef4444;
  color: #fff;
}

/* ===== 解析区 ===== */
.assessment-analysis {
  margin-top: 20px;
  padding: 16px;
  background: var(--bg-secondary, #f8fafc);
  border-radius: var(--radius-sm, 8px);
  border-left: 4px solid var(--primary, #3b82f6);
  font-size: 14px;
  line-height: 1.7;
}

/* ===== 操作按钮区 ===== */
.assessment-action-area {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border, #e5e7eb);
  flex-wrap: wrap;
}

/* ===== 结果页样式 ===== */
.assessment-result-header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border, #e5e7eb);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.assessment-result-icon {
  font-size: 56px;
  line-height: 1;
}
.assessment-result-score {
  text-align: center;
}
.assessment-score-num {
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.assessment-result-stats {
  display: flex;
  gap: 24px;
  margin-left: auto;
}
.assessment-result-stat-item {
  text-align: center;
}

.assessment-ai-summary {
  background: linear-gradient(135deg, rgba(102,126,234,0.06), rgba(118,75,162,0.06));
  border: 1px solid rgba(102,126,234,0.2);
  border-radius: var(--radius-sm, 8px);
  padding: 14px 16px;
  margin: 16px 0;
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .assessment-result-stats { flex-direction: column; gap: 8px; }
  .assessment-result-header { flex-direction: column; text-align: center; }
  .assessment-result-stats { margin-left: 0; }
}

/* ===== 学段 Tabs ===== */
.edu-level-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.edu-level-tab {
  padding: 6px 16px;
  border: 1.5px solid var(--border, #e5e7eb);
  border-radius: 20px;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
  color: var(--text-secondary, #64748b);
}
.edu-level-tab:hover {
  border-color: var(--primary, #3b82f6);
  color: var(--primary, #3b82f6);
}
.edu-level-tab.active {
  background: var(--primary, #3b82f6);
  color: #fff;
  border-color: var(--primary, #3b82f6);
}

/* ===== 学科封面卡片 ===== */
.edu-subject-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}
.edu-subject-card {
  border: 2px solid var(--border, #e5e7eb);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.15s;
  text-align: center;
  background: var(--card, #fff);
}
.edu-subject-card:hover {
  border-color: var(--primary, #3b82f6);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}
.edu-subject-card.selected {
  border-color: var(--primary, #3b82f6);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.edu-subject-cover {
  width: 100%;
  height: 130px;
  object-fit: cover;
  display: block;
}
.edu-subject-cover-emoji {
  width: 100%;
  height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 52px;
  background: var(--bg-secondary, #f8fafc);
}
.edu-subject-card-name {
  padding: 8px 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary, #1e293b);
}

/* AI分析 loading spinner */
.assess-spin {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: assessSpin 0.7s linear infinite;
}
@keyframes assessSpin {
  to { transform: rotate(360deg); }
}