* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #4F46E5;
  --primary-dark: #4338CA;
  --success: #10B981;
  --error: #EF4444;
  --warning: #F59E0B;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-500: #6B7280;
  --gray-700: #374151;
  --gray-900: #111827;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
  color: var(--gray-700);
}

.container {
  max-width: 900px;
  margin: 0 auto;
}

.page {
  display: none;
}

.page.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.card {
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

h1 {
  font-size: 2rem;
  color: var(--gray-900);
  text-align: center;
  margin-bottom: 10px;
}

.subtitle {
  text-align: center;
  color: var(--gray-500);
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--gray-700);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--gray-200);
  border-radius: 12px;
  font-size: 16px;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
}

.btn-primary {
  width: 100%;
  padding: 16px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  padding: 12px 24px;
  background: white;
  color: var(--gray-700);
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.info-box {
  margin-top: 30px;
  padding: 20px;
  background: var(--gray-100);
  border-radius: 12px;
}

.info-box h3 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: var(--gray-900);
}

.info-box ul {
  list-style: none;
}

.info-box li {
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
  color: var(--gray-600);
}

.info-box li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: bold;
}

/* Quiz Header */
.quiz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: white;
  padding: 16px 24px;
  border-radius: 12px;
  margin-bottom: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.user-info {
  font-weight: 600;
  color: var(--gray-700);
}

.user-info .divider {
  margin: 0 10px;
  color: var(--gray-300);
}

.progress-info {
  background: var(--primary);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 500;
}

.countdown-timer {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--gray-100);
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 600;
}

.countdown-label {
  color: var(--gray-600);
  font-size: 0.85rem;
}

.countdown-time {
  color: var(--gray-900);
  font-size: 1rem;
  font-family: monospace;
  min-width: 60px;
  text-align: center;
}

.countdown-time.urgent {
  color: #DC2626;
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Section Tabs */
.section-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.section-tab {
  padding: 10px 20px;
  background: white;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
  font-family: inherit;
  font-size: inherit;
}

.section-tab:hover {
  border-color: var(--primary);
}

.section-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.section-tab .count {
  margin-left: 5px;
  opacity: 0.7;
}

/* Question Container */
.quiz-content {
  background: white;
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.question-container {
  min-height: 300px;
}

.question-number {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-weight: 600;
  margin-bottom: 16px;
}

.question-text {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 24px;
  color: var(--gray-900);
  white-space: pre-wrap;
}

.passage-box {
  background: var(--gray-100);
  padding: 16px;
  border-radius: 10px;
  margin-bottom: 20px;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--gray-700);
  white-space: pre-wrap;
}

.options-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.option-item {
  display: flex;
  align-items: flex-start;
  padding: 16px;
  background: var(--gray-100);
  border: 2px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.option-item:hover {
  background: var(--gray-200);
}

.option-item.selected {
  background: #EEF2FF;
  border-color: var(--primary);
}

.option-item.correct {
  background: #D1FAE5;
  border-color: var(--success);
}

.option-item.incorrect {
  background: #FEE2E2;
  border-color: var(--error);
}

.option-letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: white;
  border-radius: 50%;
  font-weight: 600;
  margin-right: 12px;
  flex-shrink: 0;
}

.option-item.selected .option-letter {
  background: var(--primary);
  color: white;
}

.option-item.correct .option-letter {
  background: var(--success);
  color: white;
}

.option-item.incorrect .option-letter {
  background: var(--error);
  color: white;
}

.option-text {
  flex: 1;
  line-height: 1.6;
}

/* Navigation */
.nav-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--gray-200);
}

.question-indicator {
  font-weight: 600;
  color: var(--gray-700);
}

.action-buttons {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

.action-buttons .btn-primary {
  width: auto;
  padding: 14px 40px;
}

/* Result Page */
.result-card {
  text-align: center;
}

.result-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 30px 0;
}

.result-item {
  padding: 20px;
  background: var(--gray-100);
  border-radius: 12px;
}

.result-item.score-display {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--primary), #8B5CF6);
  color: white;
}

.result-item.score-display .label {
  color: rgba(255, 255, 255, 0.8);
}

.result-item .label {
  display: block;
  font-size: 0.9rem;
  color: var(--gray-500);
  margin-bottom: 8px;
}

.result-item .value {
  font-size: 1.5rem;
  font-weight: 700;
}

.score-display .value {
  font-size: 3rem;
}

.result-message {
  font-size: 1.2rem;
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 30px;
}

.result-message.excellent {
  background: #D1FAE5;
  color: #065F46;
}

.result-message.good {
  background: #DBEAFE;
  color: #1E40AF;
}

.result-message.pass {
  background: #FEF3C7;
  color: #92400E;
}

.result-message.fail {
  background: #FEE2E2;
  color: #991B1B;
}

.result-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

.result-actions button {
  width: auto;
}

/* Detail Page */
.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.detail-header h1 {
  color: white;
}

.detail-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.detail-question {
  background: white;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.detail-question .question-text {
  margin-bottom: 16px;
}

.detail-question .your-answer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  border-radius: 8px;
  margin-top: 12px;
}

.detail-question .your-answer.correct {
  background: #D1FAE5;
  color: #065F46;
}

.detail-question .your-answer.incorrect {
  background: #FEE2E2;
  color: #991B1B;
}

.detail-question .correct-answer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  background: #F3F4F6;
  border-radius: 8px;
  margin-top: 8px;
  color: #065F46;
}

/* Responsive */
@media (max-width: 640px) {
  body {
    padding: 6px;
    font-size: 14px;
  }

  .container {
    max-width: 100%;
  }

  .card {
    padding: 16px;
    border-radius: 16px;
  }

  h1 {
    font-size: 1.25rem;
    margin-bottom: 6px;
  }

  .subtitle {
    font-size: 0.85rem;
    margin-bottom: 16px;
  }

  .form-group {
    margin-bottom: 12px;
  }

  .form-group label {
    font-size: 0.9rem;
    margin-bottom: 4px;
  }

  .form-group input,
  .form-group select {
    padding: 10px 12px;
    font-size: 14px;
    border-radius: 8px;
  }

  .btn-primary {
    padding: 12px;
    font-size: 15px;
    border-radius: 8px;
  }

  .btn-secondary {
    padding: 8px 16px;
    font-size: 14px;
  }

  .info-box {
    margin-top: 16px;
    padding: 12px;
    border-radius: 8px;
  }

  .info-box h3 {
    font-size: 0.9rem;
    margin-bottom: 8px;
  }

  .info-box li {
    font-size: 0.85rem;
    padding: 5px 0;
    padding-left: 18px;
  }

  .quiz-header {
    flex-direction: column;
    gap: 8px;
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 12px;
  }

  .user-info {
    font-size: 0.85rem;
  }

  .progress-info {
    padding: 5px 12px;
    font-size: 0.85rem;
  }

  .countdown-timer {
    padding: 5px 12px;
  }

  .countdown-label {
    font-size: 0.75rem;
  }

  .countdown-time {
    font-size: 0.9rem;
    min-width: 50px;
  }

  .section-tabs {
    gap: 6px;
    margin-bottom: 12px;
  }

  .section-tab {
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: 6px;
  }

  .quiz-content {
    padding: 16px;
    border-radius: 14px;
  }

  .question-container {
    min-height: auto;
  }

  .question-number {
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 12px;
    margin-bottom: 10px;
  }

  .question-text {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 16px;
  }

  .passage-box {
    padding: 12px;
    font-size: 0.85rem;
    line-height: 1.6;
    border-radius: 8px;
    margin-bottom: 14px;
  }

  .options-list {
    gap: 8px;
  }

  .option-item {
    padding: 10px 12px;
    border-radius: 8px;
  }

  .option-letter {
    width: 26px;
    height: 26px;
    font-size: 0.8rem;
    margin-right: 8px;
  }

  .option-text {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .nav-buttons {
    gap: 10px;
    margin-top: 16px;
    padding-top: 14px;
  }

  .question-indicator {
    font-size: 0.85rem;
  }

  .action-buttons {
    margin-top: 14px;
  }

  .action-buttons .btn-primary {
    padding: 10px 28px;
    font-size: 14px;
  }

  .result-summary {
    grid-template-columns: 1fr;
    gap: 10px;
    margin: 16px 0;
  }

  .result-item {
    padding: 14px;
    border-radius: 10px;
  }

  .result-item .value {
    font-size: 1.2rem;
  }

  .score-display .value {
    font-size: 2rem;
  }

  .result-message {
    font-size: 1rem;
    padding: 14px;
    border-radius: 10px;
    margin-bottom: 20px;
  }

  .result-actions {
    flex-direction: column;
    gap: 10px;
  }

  .detail-header {
    margin-bottom: 14px;
  }

  .detail-header h1 {
    font-size: 1.1rem;
  }

  .detail-question {
    padding: 14px;
    border-radius: 12px;
    margin-bottom: 10px;
  }

  .detail-question .question-text {
    margin-bottom: 10px;
    font-size: 0.9rem;
  }

  .detail-question .your-answer,
  .detail-question .correct-answer {
    padding: 8px 10px;
    font-size: 0.85rem;
  }

  .unanswered-warning {
    padding: 10px;
    font-size: 0.85rem;
    border-radius: 8px;
    margin-bottom: 14px;
  }

  .listening-container {
    padding: 0;
  }

  .audio-warning {
    padding: 10px 14px;
    font-size: 0.85rem;
    border-radius: 8px;
    margin-bottom: 16px;
  }

  .audio-group {
    margin-bottom: 16px;
    padding: 0;
    border-radius: 0;
  }

  .audio-group-header {
    margin-bottom: 10px;
  }

  .audio-group-label {
    font-size: 0.9rem;
  }

  .audio-status {
    font-size: 0.75rem;
    padding: 2px 8px;
  }

  .audio-controls {
    padding: 10px;
    border-radius: 8px;
  }

  .play-btn {
    padding: 8px 16px;
    font-size: 0.85rem;
  }

  .listening-question-item {
    margin-top: 12px;
    padding: 12px 0;
    border-radius: 8px;
  }

  .listening-nav {
    gap: 12px;
    margin-top: 16px;
    padding: 12px;
    border-radius: 8px;
  }

  .listening-nav-btn {
    padding: 8px 14px;
    font-size: 0.8rem;
  }

  .section-nav {
    margin-top: 16px;
    padding-top: 14px;
  }

  .section-nav-btn {
    padding: 10px 20px;
    font-size: 0.85rem;
  }

  .dialogue {
    padding: 12px 14px;
    margin: 8px 0;
    border-radius: 8px;
  }

  .dialogue-line {
    padding: 5px 0;
    font-size: 0.85rem;
  }

  .cloze-container {
    padding: 0;
  }

  .section-title {
    font-size: 1rem;
    margin-bottom: 12px;
  }

  .cloze-passage {
    font-size: 0.9rem;
    line-height: 1.8;
    padding: 12px;
    border-radius: 8px;
    border: none;
  }

  .cloze-answers {
    margin-top: 16px;
    padding: 14px;
    border-radius: 10px;
  }

  .cloze-answers-title {
    font-size: 0.9rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
  }

  .cloze-answers-grid {
    gap: 8px;
  }

  .cloze-answer-item {
    padding: 8px 10px;
    border-radius: 6px;
  }

  .cloze-answer-num {
    min-width: 28px;
    font-size: 0.85rem;
  }

  .cloze-select {
    padding: 4px 8px;
    font-size: 0.85rem;
    min-width: 100px;
    border-radius: 6px;
  }

  .cloze-passage-detail {
    font-size: 0.85rem;
    line-height: 1.7;
    padding: 12px;
    border-radius: 8px;
  }

  .reading-container {
    padding: 0;
  }

  .reading-passage {
    margin-bottom: 20px;
  }

  .reading-passage h3 {
    font-size: 0.95rem;
    margin-bottom: 8px;
    padding-bottom: 6px;
  }

  .passage-content {
    font-size: 0.9rem;
    line-height: 1.7;
    padding: 12px;
    border-radius: 8px;
  }

  .reading-questions h3 {
    font-size: 0.95rem;
    margin-bottom: 12px;
    padding-bottom: 6px;
  }

  .reading-question-item {
    margin-bottom: 14px;
    padding: 14px;
    border-radius: 10px;
  }

  .reading-question-text {
    font-size: 0.9rem;
    margin-bottom: 12px;
    line-height: 1.5;
  }

  .reading-questions-detail {
    margin-top: 14px;
  }
}

/* Unanswered warning */
.unanswered-warning {
  background: #FEF3C7;
  color: #92400E;
  padding: 16px;
  border-radius: 10px;
  margin-bottom: 20px;
  display: none;
}

.unanswered-warning.show {
  display: block;
}

/* Loading */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--gray-500);
}

/* Listening Section */
.listening-container {
  padding: 10px;
}

.audio-warning {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  background: linear-gradient(135deg, #FFF7ED, #FEF3C7);
  border: 2px solid #F59E0B;
  border-radius: 12px;
  color: #92400E;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.warning-icon {
  font-size: 1.3rem;
}

.audio-group {
  margin-bottom: 16px;
  padding: 0;
  background: white;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.audio-group-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.audio-group-label {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-900);
}

.audio-status {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}

.audio-status.unplayed {
  background: #FEE2E2;
  color: #991B1B;
}

.audio-status.played {
  background: #D1FAE5;
  color: #065F46;
}

.audio-player-wrapper {
  margin-bottom: 18px;
}

.audio-controls {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  background: var(--gray-50);
  border-radius: 10px;
}

.play-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  background: linear-gradient(135deg, #4F46E5, #7C3AED);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.play-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

.play-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.play-btn.playing {
  background: linear-gradient(135deg, #7C3AED, #A855F7);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.play-icon {
  font-size: 1rem;
}

.play-tip {
  font-size: 0.82rem;
  color: var(--gray-500);
}

.audio-disabled {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px;
  background: var(--gray-100);
  border-radius: 10px;
  color: var(--gray-500);
  font-size: 0.9rem;
}

.audio-disabled-icon {
  font-size: 1.2rem;
}

.listening-question-item {
  margin-top: 18px;
  padding: 16px 0;
  background: var(--gray-50);
  border-radius: 10px;
}

.listening-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-top: 24px;
  padding: 16px 0;
  background: var(--gray-50);
  border-radius: 12px;
}

.listening-nav-btn {
  padding: 10px 20px;
  background: white;
  border: 2px solid var(--primary);
  border-radius: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.listening-nav-btn:hover:not(:disabled) {
  background: var(--primary);
  color: white;
}

.listening-nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  border-color: var(--gray-300);
  color: var(--gray-400);
}

.listening-page-indicator {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gray-700);
}

/* Section Navigation */
.section-nav {
  display: flex;
  justify-content: flex-end;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--gray-200);
}

.section-nav-btn {
  padding: 12px 28px;
  background: white;
  border: 2px solid var(--primary);
  border-radius: 10px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.section-nav-btn:hover {
  background: var(--primary);
  color: white;
}

.next-section-btn {
  background: linear-gradient(135deg, #4F46E5, #7C3AED);
  color: white;
  border: none;
}

.next-section-btn:hover {
  background: linear-gradient(135deg, #4338CA, #6D28D9);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

/* Dialogue Style */
.dialogue {
  background: var(--gray-50);
  border-radius: 12px;
  padding: 16px 20px;
  margin: 12px 0;
}

.dialogue-line {
  display: flex;
  gap: 10px;
  padding: 8px 0;
  line-height: 1.6;
}

.dialogue-line:first-child {
  border-bottom: 1px dashed var(--gray-300);
  padding-bottom: 12px;
  margin-bottom: 4px;
}

.speaker {
  font-weight: 700;
  color: var(--primary);
  min-width: 24px;
  flex-shrink: 0;
}

.dialogue-text {
  color: var(--gray-800);
}

/* Cloze Section */
.cloze-container {
  padding: 0;
}

.section-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 20px;
  text-align: center;
}

.cloze-passage {
  font-size: 1.05rem;
  line-height: 2.2;
  color: var(--gray-800);
  text-align: justify;
  padding: 20px;
  background: var(--gray-100);
  border-radius: 12px;
  border: none;
  border-left: none;
}

.cloze-blank {
  display: inline-block;
  background: #EEF2FF;
  color: var(--primary);
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  margin: 0 2px;
}

.cloze-answers {
  margin-top: 24px;
  padding: 20px;
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
}

.cloze-answers-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gray-200);
}

.cloze-answers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.cloze-answer-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--gray-50);
  border-radius: 8px;
}

.cloze-answer-num {
  font-weight: 700;
  color: var(--primary);
  min-width: 36px;
  font-size: 0.95rem;
}

.cloze-select {
  padding: 6px 12px;
  font-size: 0.95rem;
  border: 2px solid var(--primary);
  border-radius: 8px;
  background: white;
  color: var(--gray-900);
  cursor: pointer;
  min-width: 120px;
  margin: 0 2px;
  transition: all 0.2s;
  flex: 1;
}

.cloze-select:hover {
  background: #EEF2FF;
}

.cloze-select:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.cloze-select option {
  padding: 8px;
}

.cloze-passage-detail {
  font-size: 1rem;
  line-height: 2;
  color: var(--gray-800);
  padding: 16px;
  background: var(--gray-100);
  border-radius: 10px;
}

.cloze-answer {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  margin: 0 2px;
}

.cloze-answer.correct {
  background: #D1FAE5;
  color: #065F46;
}

.cloze-answer.incorrect {
  background: #FEE2E2;
  color: #991B1B;
  text-decoration: line-through;
}

/* Reading Section */
.reading-container {
  padding: 10px;
}

.reading-passage {
  margin-bottom: 30px;
}

.reading-passage h3 {
  font-size: 1.1rem;
  color: var(--gray-700);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
}

.passage-content {
  font-size: 1.05rem;
  line-height: 2;
  color: var(--gray-800);
  text-align: justify;
  padding: 20px;
  background: var(--gray-100);
  border-radius: 12px;
  border: none;
  white-space: pre-wrap;
}

.reading-questions h3 {
  font-size: 1.1rem;
  color: var(--gray-700);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gray-300);
}

.reading-question-item {
  margin-bottom: 24px;
  padding: 20px;
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
}

.reading-question-text {
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-900);
  margin-bottom: 16px;
  line-height: 1.6;
  white-space: pre-wrap;
}

.reading-questions-detail {
  margin-top: 20px;
}

.reading-questions-detail .reading-question-item {
  background: var(--gray-50);
}

.reading-detail {
  margin-top: 20px;
}