.quiz-progress-bar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 28px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
}

.quiz-counter {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.quiz-track {
  height: 8px;
  background: var(--color-surface-muted);
  border-radius: 100px;
  overflow: hidden;
}

.quiz-track-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 100px;
  transition: width 0.35s ease;
}

.quiz-score {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-success);
  white-space: nowrap;
}

.question-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.question-type {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
  font-family: var(--font-latin);
}

.type-mcq { background: var(--color-primary-soft); color: var(--color-primary); }
.type-truefalse { background: var(--color-info-bg); color: var(--color-info); }
.type-matching { background: var(--color-accent-soft); color: var(--color-accent); }
.type-open { background: var(--color-success-bg); color: var(--color-success); }

.question-text {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.65;
  margin-bottom: 24px;
}

.options-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.option-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 18px;
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.option-item:hover {
  border-color: var(--color-primary-light);
  background: var(--color-primary-soft);
}

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

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

.option-item.wrong {
  border-color: var(--color-error);
  background: var(--color-error-bg);
}

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

.option-key {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.82rem;
  flex-shrink: 0;
  color: var(--color-primary);
}

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

.option-item.correct .option-key,
.option-item.reveal-correct .option-key {
  background: var(--color-success);
  color: #fff;
  border-color: var(--color-success);
}

.option-item.wrong .option-key {
  background: var(--color-error);
  color: #fff;
  border-color: var(--color-error);
}

.option-label {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
  padding-top: 4px;
}

.tf-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.tf-btn {
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-muted);
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

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

.tf-btn.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.tf-btn.correct {
  border-color: var(--color-success);
  background: var(--color-success-bg);
  color: var(--color-success);
}

.tf-btn.wrong {
  border-color: var(--color-error);
  background: var(--color-error-bg);
  color: var(--color-error);
}

.matching-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.match-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  align-items: center;
}

.match-prompt {
  padding: 12px 16px;
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--color-text);
}

.match-arrow {
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

.match-select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.88rem;
  cursor: pointer;
}

.match-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.match-select.correct {
  border-color: var(--color-success);
  background: var(--color-success-bg);
}

.match-select.wrong {
  border-color: var(--color-error);
  background: var(--color-error-bg);
}

.open-input {
  width: 100%;
  min-height: 130px;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-muted);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.92rem;
  line-height: 1.7;
  resize: vertical;
  direction: rtl;
}

.open-input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-surface);
}

.model-answer {
  display: none;
  margin-top: 16px;
  padding: 16px 20px;
  background: var(--color-success-bg);
  border: 1px solid #c6f6d5;
  border-radius: var(--radius-md);
}

.model-answer.show {
  display: block;
}

.model-answer-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-success);
  margin-bottom: 8px;
}

.model-answer-text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.feedback {
  display: none;
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
}

.feedback.show {
  display: block;
}

.feedback.correct {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid #c6f6d5;
}

.feedback.wrong {
  background: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid #fed7d7;
}

.feedback-detail {
  margin-top: 6px;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

.quiz-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.results-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26, 32, 44, 0.55);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.results-modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  max-width: 480px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.results-modal h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.results-score {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.results-percent {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.results-bar {
  height: 10px;
  background: var(--color-surface-muted);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 20px;
}

.results-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 100px;
  transition: width 1s ease;
}

.results-message {
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.results-breakdown {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.breakdown-item {
  padding: 14px;
  background: var(--color-surface-muted);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

.breakdown-num {
  font-size: 1.5rem;
  font-weight: 700;
}

.breakdown-label {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

.breakdown-item.correct .breakdown-num { color: var(--color-success); }
.breakdown-item.wrong .breakdown-num { color: var(--color-error); }
.breakdown-item.open .breakdown-num { color: var(--color-accent); }

.results-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 700px) {
  .quiz-progress-bar {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .match-row {
    grid-template-columns: 1fr;
  }

  .match-arrow {
    text-align: center;
    transform: rotate(90deg);
  }

  .tf-group {
    grid-template-columns: 1fr;
  }
}