/**
 * SinBar Academy - Interactive Quiz Engine Styles
 */

.quiz-wrapper {
  max-width: 820px;
  margin: 2.5rem auto 6rem;
  padding: 0 1.5rem;
}

/* Header Bar */
.quiz-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.quiz-meta-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.quiz-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
}

.quiz-back-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-focus);
}

.quiz-back-btn i {
  width: 1rem;
  height: 1rem;
}

.quiz-info-title h2 {
  font-size: 1.35rem;
  font-weight: 700;
}

.badge-quiz-course {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-primary);
}

/* Timer */
.quiz-timer {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 1rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.quiz-timer i {
  width: 1rem;
  height: 1rem;
}

.quiz-timer strong {
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.quiz-timer.timer-warning {
  border-color: rgba(239, 68, 68, 0.4);
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

.quiz-timer.timer-warning strong {
  color: var(--color-danger);
}

/* Stepper Progress */
.quiz-stepper-box {
  margin-bottom: 2rem;
}

.stepper-top {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.6rem;
}

.stepper-progress-bg {
  width: 100%;
  height: 8px;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.stepper-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  border-radius: var(--radius-full);
  transition: width var(--transition-smooth);
}

/* Main Question Card */
.quiz-card-main {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-md);
  margin-bottom: 2.5rem;
}

.question-number-pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-xs);
  margin-bottom: 1.25rem;
}

.question-text {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

/* Options List */
.quiz-options-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.quiz-option-btn {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.15rem 1.4rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 100%;
}

.quiz-option-btn:hover {
  background: var(--bg-surface-elevated);
  border-color: rgba(99, 102, 241, 0.35);
  transform: translateX(4px);
}

.quiz-option-btn.selected {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.08));
  border-color: var(--accent-primary);
  box-shadow: 0 0 20px -5px var(--accent-glow);
}

.option-letter {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.quiz-option-btn.selected .option-letter {
  background: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
}

.option-text {
  flex: 1;
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--text-primary);
}

.option-indicator {
  color: var(--text-muted);
}

.option-indicator i {
  width: 1.2rem;
  height: 1.2rem;
}

.quiz-option-btn.selected .option-indicator {
  color: var(--accent-primary);
}

/* Reveal Modes */
.quiz-option-btn.option-correct {
  background: var(--color-success-bg) !important;
  border-color: rgba(16, 185, 129, 0.5) !important;
}
.quiz-option-btn.option-correct .option-letter {
  background: var(--color-success);
  color: #ffffff;
}

.quiz-option-btn.option-wrong {
  background: var(--color-danger-bg) !important;
  border-color: rgba(239, 68, 68, 0.5) !important;
}
.quiz-option-btn.option-wrong .option-letter {
  background: var(--color-danger);
  color: #ffffff;
}

/* Explanation Hint Box */
.quiz-live-hint-box {
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.btn-toggle-explanation {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-primary);
  cursor: pointer;
}

.btn-toggle-explanation:hover {
  text-decoration: underline;
}

.btn-toggle-explanation i {
  width: 1rem;
  height: 1rem;
}

.explanation-content-panel {
  margin-top: 1rem;
  padding: 1.25rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.explanation-status {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.explanation-status i {
  width: 1.1rem;
  height: 1.1rem;
}

.expl-correct { color: var(--color-success); }
.expl-wrong { color: var(--color-warning); }

.expl-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Bottom Nav */
.quiz-footer-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* --- Results Screen --- */
.quiz-results-container {
  max-width: 820px;
  margin: 3rem auto 6rem;
  padding: 0 1.5rem;
}

.results-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  padding: 3.5rem 2.5rem;
  text-align: center;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
}

.results-trophy {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.trophy-circle {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 0 35px var(--accent-glow);
}

.trophy-circle i {
  width: 2.2rem;
  height: 2.2rem;
}

.results-badge-status {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.4rem 1.1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
}

.badge-pass {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-retry {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.results-title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 0.6rem;
}

.results-subtext {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 550px;
  margin: 0 auto 2.5rem;
}

/* Score Metrics */
.results-score-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  padding: 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.score-circle {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.score-number {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--accent-primary);
  line-height: 1;
}

.score-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

.score-details-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-align: left;
}

.score-detail-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.95rem;
}

.detail-name {
  color: var(--text-secondary);
  min-width: 140px;
}

/* Questions Review */
.results-review-accordion {
  text-align: left;
  margin-bottom: 3rem;
}

.results-review-accordion h3 {
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}

.review-questions-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.review-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.review-item-header {
  display: flex;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.review-status-icon i {
  width: 1.2rem;
  height: 1.2rem;
}

.review-item-correct .review-status-icon { color: var(--color-success); }
.review-item-wrong .review-status-icon { color: var(--color-danger); }

.review-q-text {
  font-size: 0.98rem;
  color: var(--text-primary);
}

.review-answers-compare {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.85rem;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  font-size: 0.88rem;
}

.compare-row {
  display: flex;
  gap: 0.75rem;
}

.compare-lbl {
  color: var(--text-muted);
  min-width: 90px;
}

.review-explanation-box {
  display: flex;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.review-explanation-box i {
  width: 1rem;
  height: 1rem;
  color: var(--accent-primary);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

/* Actions Group */
.results-actions-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}