.practice-generator-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px;
}

.mc-options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.mc-option-btn {
  display: block;
  width: 100%;
  padding: 14px 20px;
  border: 2px solid #dee2e6;
  border-radius: 8px;
  background: #fff;
  font-size: 1rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s;
}

.mc-option-btn:hover {
  border-color: #667eea;
  background: #f0f0ff;
}

.mc-option-btn.selected {
  border-color: #667eea;
  background: #e8e8ff;
}

.mc-option-btn.correct {
  border-color: #28a745;
  background: #d4edda;
  color: #155724;
}

.mc-option-btn.incorrect {
  border-color: #dc3545;
  background: #f8d7da;
  color: #721c24;
}

.mc-option-btn.reveal-correct {
  border-color: #28a745;
  background: #d4edda;
}

.question-card pre {
  background: #f8f9fa;
  padding: 10px;
  border-radius: 4px;
  font-size: 0.95rem;
}

.feedback-card.correct {
  background: linear-gradient(135deg, #28a745, #20c997);
  color: white;
}

.feedback-card.incorrect {
  background: linear-gradient(135deg, #dc3545, #e74c3c);
  color: white;
}

#difficulty-level-indicator {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-top: 4px;
}

.diff-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}

.diff-dot.active {
  background: #667eea;
}

.diff-dot.inactive {
  background: #dee2e6;
}

/* ===== Score Section ===== */
.score-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 20px;
}

.score-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.score-section-title {
  color: white;
  margin-top: 0;
  margin-bottom: 5px;
}

.score-right {
  text-align: right;
  color: white;
}

.score-label {
  font-size: 14px;
  margin-bottom: 5px;
}

.score-label-inline {
  font-size: 14px;
  margin: 0;
}

.score-label-top {
  font-size: 14px;
  margin-top: 5px;
}

.score-correct {
  color: #90ee90;
}

.score-wrong {
  color: #ffb6c1;
}

.score-percentage {
  font-size: 18px;
}

.score-total {
  font-size: 20px;
}

/* ===== Control Section ===== */
.control-section {
  background: white;
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.row-margin-top {
  margin-top: 15px;
}

.difficulty-labels {
  text-align: center;
  font-size: 12px;
  margin-top: 5px;
}

.difficulty-easy {
  color: #28a745;
}

.difficulty-medium {
  color: #ffc107;
}

.difficulty-hard {
  color: #dc3545;
}

/* ===== Question Section ===== */
#question-section {
  display: none;
}

.question-card {
  background: white;
  padding: 25px;
  border-radius: 8px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.question-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.question-title {
  color: #667eea;
  margin-top: 0;
  margin-bottom: 0;
}

.question-number-badge {
  background: #667eea;
  color: white;
  padding: 8px 15px;
  border-radius: 20px;
  font-weight: bold;
}

.question-text {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

.question-data {
  background: #f8f9fa;
  padding: 15px;
  border-radius: 5px;
  margin-bottom: 20px;
  font-family: monospace;
}

#hint-btn {
  display: none;
}

/* ===== Answer Sections ===== */
#mc-answer-section,
#free-input-section {
  display: none;
}

.answer-card {
  background: white;
  padding: 25px;
  border-radius: 8px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.answer-card h4 {
  margin-top: 0;
  margin-bottom: 15px;
}

.tip-text {
  font-size: 12px;
  color: #6c757d;
  margin-top: 10px;
}

/* ===== Feedback Section ===== */
#feedback-section {
  display: none;
}

.feedback-card {
  padding: 25px;
  border-radius: 8px;
  margin-bottom: 20px;
}

#feedback-title {
  margin-top: 0;
  margin-bottom: 15px;
}

.feedback-message {
  font-size: 1.05rem;
  line-height: 1.6;
}

.feedback-explanation {
  background: rgba(255, 255, 255, 0.9);
  padding: 15px;
  border-radius: 5px;
  margin-top: 15px;
}

/* ===== Next Section ===== */
#next-section {
  display: none;
}

/* ===== Initial State ===== */
#initial-state {
  text-align: center;
  padding: 40px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

#initial-state .fa-graduation-cap {
  font-size: 4rem;
  color: #667eea;
  margin-bottom: 20px;
}

#initial-state h2 {
  color: #333;
}

#initial-state p {
  font-size: 1.1rem;
  color: #666;
  margin-bottom: 30px;
}

/* ===== Print Button ===== */
#print-btn {
  margin-left: 10px;
}

@media (max-width: 768px) {
  .mc-options-grid {
    grid-template-columns: 1fr;
  }
}