/* ==========================================================================
   面试工作台 - 组件样式规范 (components.css)
   去 Emoji、全端自适应、移动端极限通透防拥挤
   ========================================================================== */

/* 1. 沉浸式题目卡片 */
.question-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 1rem;
}

.question-meta-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.85rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.question-index-tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.question-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: #ffffff;
  line-height: 1.55;
  margin-bottom: 1.15rem;
}

/* 选项列表 */
.options-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 1.15rem;
}

.option-item-btn {
  width: 100%;
  text-align: left;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text-main);
  font-size: 0.9rem;
  line-height: 1.45;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  user-select: none;
}

.option-item-btn:hover {
  background: var(--bg-hover);
  border-color: var(--accent-cyan);
}

.option-letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
  margin-top: 1px;
}

.option-item-btn.selected {
  background: rgba(2, 132, 199, 0.15);
  border-color: var(--accent-blue);
}

.option-item-btn.selected .option-letter {
  background: var(--accent-blue);
  color: #ffffff;
}

/* 作答后状态 */
.option-item-btn.correct {
  background: rgba(16, 185, 129, 0.15) !important;
  border-color: var(--accent-green) !important;
  color: #34d399 !important;
}

.option-item-btn.correct .option-letter {
  background: var(--accent-green) !important;
  color: #ffffff !important;
}

.option-item-btn.wrong {
  background: rgba(239, 68, 68, 0.15) !important;
  border-color: var(--accent-red) !important;
  color: #f87171 !important;
}

.option-item-btn.wrong .option-letter {
  background: var(--accent-red) !important;
  color: #ffffff !important;
}

/* 题目底部控制栏 */
.question-footer-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-subtle);
}

/* 官方深度解析抽屉 */
.analysis-drawer {
  display: none;
  background: #0f172a;
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-cyan);
  border-radius: 6px;
  padding: 1rem;
  margin-top: 1rem;
  font-size: 0.88rem;
  line-height: 1.65;
  color: #cbd5e1;
}

.analysis-header {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-cyan);
  font-size: 0.8rem;
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

/* 2. 动态图解卡片规范 */
.visualizer-container {
  display: none;
  flex-direction: column;
  gap: 1.25rem;
}

.vis-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: var(--shadow-md);
}

.vis-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.85rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.vis-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.vis-stage {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 1rem;
  min-height: 200px;
  position: relative;
  overflow-x: auto;
  margin-bottom: 0.85rem;
}

.vis-desc-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 0.75rem 0.9rem;
  font-size: 0.82rem;
  color: #cbd5e1;
  line-height: 1.55;
}

/* 3. 系统技术手册排版 */
.handbook-container {
  display: none;
  flex-direction: column;
  gap: 1rem;
}

.handbook-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.25rem;
}

.handbook-sec-title {
  font-size: 1.05rem;
  color: var(--accent-cyan);
  margin-bottom: 0.65rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.4rem;
}

.handbook-content-box {
  font-size: 0.88rem;
  color: #cbd5e1;
  line-height: 1.7;
}

.handbook-content-box ul {
  padding-left: 1.2rem;
  margin: 0.4rem 0 0.8rem 0;
}

/* 4. 移动端专门紧凑微调 (<= 768px) */
@media (max-width: 768px) {
  .question-card {
    padding: 0.85rem 1rem;
    border-radius: 10px;
    margin-bottom: 0.6rem;
  }
  .question-meta-bar {
    margin-bottom: 0.65rem;
    padding-bottom: 0.4rem;
  }
  .question-title {
    font-size: 0.96rem;
    line-height: 1.48;
    margin-bottom: 0.85rem;
  }
  .options-list {
    gap: 7px;
    margin-bottom: 0.85rem;
  }
  .option-item-btn {
    padding: 9px 11px;
    font-size: 0.86rem;
    line-height: 1.4;
    border-radius: 7px;
    gap: 8px;
  }
  .option-letter {
    width: 20px;
    height: 20px;
    font-size: 0.72rem;
  }
  .question-footer-bar {
    padding-top: 0.6rem;
  }
  .btn-sm {
    padding: 5px 10px;
    font-size: 0.75rem;
  }
  .vis-card {
    padding: 1rem;
  }
  .handbook-card {
    padding: 1rem;
  }
}

/* 移动端强力紧凑通透模式 */
@media (max-width: 768px) {
  .app-container {
    padding: 4px 6px !important;
  }
  .question-card {
    padding: 10px 12px !important;
    border-radius: 8px !important;
    margin-bottom: 6px !important;
  }
  .question-meta-bar {
    margin-bottom: 6px !important;
    padding-bottom: 4px !important;
  }
  .question-title {
    font-size: 0.92rem !important;
    line-height: 1.38 !important;
    margin-bottom: 8px !important;
  }
  .options-list {
    gap: 5px !important;
    margin-bottom: 8px !important;
  }
  .option-item-btn {
    padding: 6px 10px !important;
    font-size: 0.84rem !important;
    line-height: 1.32 !important;
    gap: 6px !important;
    border-radius: 6px !important;
  }
  .option-letter {
    width: 18px !important;
    height: 18px !important;
    font-size: 0.68rem !important;
    margin-top: 1px !important;
  }
}