/* Quiz-specific styles */

.quiz-container {
  max-width: 800px;
  min-height: auto;
}

.quiz-screen {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

.quiz-screen.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Quiz Start Screen */
.quiz-intro {
  text-align: center;
}

.quiz-intro h2 {
  font-size: var(--font-size-xl);
  color: var(--accent);
  margin-bottom: var(--spacing-xl);
}

.quiz-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
}

.feature-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg);
}

.feature-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: var(--spacing-md);
}

.feature-item h3 {
  font-size: var(--font-size-lg);
  color: var(--text);
  margin: 0 0 var(--spacing-sm);
}

.feature-item p {
  color: var(--muted);
  margin: 0;
  font-size: var(--font-size-sm);
}

.quiz-btn {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
  margin-top: var(--spacing-xl);
  min-width: 200px;
}

/* Quiz Progress */
.quiz-progress {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-2xl);
}

.progress-bar {
  flex: 1;
  height: 8px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-right: var(--spacing-lg);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: var(--radius-full);
  width: 0%;
  transition: width 0.3s ease;
}

.question-counter {
  font-size: var(--font-size-sm);
  color: var(--muted);
  font-weight: 600;
  min-width: 60px;
}

/* Question Container */
.question-container {
  margin-bottom: var(--spacing-2xl);
}

.question-text {
  font-size: var(--font-size-xl);
  color: var(--text);
  line-height: 1.4;
  margin-bottom: var(--spacing-xl);
}

.answers-container {
  display: grid;
  gap: var(--spacing-md);
}

.answer-option {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.answer-option:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.2);
}

.answer-option.selected {
  background: rgba(34,211,238,0.1);
  border-color: var(--accent);
}

.answer-option.correct {
  background: rgba(52,211,153,0.1);
  border-color: var(--success);
}

.answer-option.incorrect {
  background: rgba(248,113,113,0.1);
  border-color: var(--error);
}

.answer-letter {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  font-weight: 600;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
  margin-top: 2px;
}

.answer-option.selected .answer-letter {
  background: var(--accent);
  color: var(--bg);
}

.answer-option.correct .answer-letter {
  background: var(--success);
  color: var(--bg);
}

.answer-option.incorrect .answer-letter {
  background: var(--error);
  color: var(--bg);
}

.answer-text {
  flex: 1;
  line-height: 1.4;
}

/* Quiz Controls */
.quiz-controls {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-2xl);
}

.quiz-controls .btn {
  min-width: 120px;
}

/* Results Screen */
.results-container {
  text-align: center;
}

.score-circle {
  width: 150px;
  height: 150px;
  margin: 0 auto var(--spacing-xl);
  position: relative;
}

.score-display {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: conic-gradient(var(--accent) 0deg, var(--accent-2) 180deg, rgba(255,255,255,0.1) 360deg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.score-display::before {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  background: var(--bg);
}

.score-percentage {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  position: relative;
  z-index: 1;
}

.score-label {
  font-size: var(--font-size-sm);
  color: var(--muted);
  position: relative;
  z-index: 1;
}

.result-title {
  font-size: var(--font-size-2xl);
  color: var(--text);
  margin-bottom: var(--spacing-md);
}

.result-description {
  color: var(--muted);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.5;
}

.score-breakdown {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.score-stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--muted);
}

.result-actions {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* Review Screen */
.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-2xl);
}

.review-container {
  max-height: none;
  overflow-y: visible;
}

.review-header h2 {
  color: var(--text);
  margin: 0;
}

.review-item {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.review-question {
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--spacing-md);
}

.review-answers {
  display: grid;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.review-answer {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
}

.review-answer.correct {
  background: rgba(52,211,153,0.1);
  border-left: 3px solid var(--success);
}

.review-answer.user-incorrect {
  background: rgba(248,113,113,0.1);
  border-left: 3px solid var(--error);
}

.review-answer.neutral {
  background: rgba(255,255,255,0.05);
}

.review-explanation {
  font-size: var(--font-size-sm);
  color: var(--muted);
  font-style: italic;
  padding-top: var(--spacing-sm);
  border-top: 1px solid rgba(255,255,255,0.1);
}

/* Responsive Design */
@media (max-width: 640px) {
  .quiz-features {
    grid-template-columns: 1fr;
  }
  
  .quiz-controls {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .quiz-controls .btn {
    width: 100%;
  }
  
  .score-breakdown {
    flex-wrap: wrap;
    gap: var(--spacing-lg);
  }
  
  .result-actions {
    flex-direction: column;
  }
  
  .result-actions .btn {
    width: 100%;
  }
  
  .review-header {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
}