/* =============================================
   SMART LOAD ACADEMY - LESSON QUIZ
   ============================================= */

.lesson-quiz {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.quiz-header h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: #ffffff;
}

.quiz-subtitle {
  color: #b0b0b0;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.quiz-question {
  background: rgba(20, 20, 20, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.quiz-question-text {
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.03);
  color: #d0d0d0;
  cursor: pointer;
  transition: all 0.2s ease;
}

.quiz-option:hover {
  border-color: rgba(0, 217, 255, 0.4);
  background: rgba(0, 217, 255, 0.05);
}

.quiz-option-marker {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
  position: relative;
}

.quiz-option.selected {
  border-color: #00D9FF;
  background: rgba(0, 217, 255, 0.1);
}

.quiz-option.selected .quiz-option-marker {
  border-color: #00D9FF;
}

.quiz-option.selected .quiz-option-marker::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: #00D9FF;
}

.quiz-option.correct {
  border-color: #64C864;
  background: rgba(100, 200, 100, 0.12);
  color: #ffffff;
}

.quiz-option.correct .quiz-option-marker {
  border-color: #64C864;
}

.quiz-option.correct .quiz-option-marker::after {
  content: '✓';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 900;
  color: #64C864;
}

.quiz-option.incorrect {
  border-color: #FF6B35;
  background: rgba(255, 107, 53, 0.1);
  color: #ffffff;
}

.quiz-option.incorrect .quiz-option-marker {
  border-color: #FF6B35;
}

.quiz-option.incorrect .quiz-option-marker::after {
  content: '✕';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 900;
  color: #FF6B35;
}

.quiz-option.disabled {
  cursor: default;
}

.quiz-submit {
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.quiz-submit:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.quiz-result {
  padding: 1.5rem;
  border-radius: 0.75rem;
  margin-bottom: 1.5rem;
}

.quiz-result strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.quiz-result p {
  margin: 0;
  color: #d0d0d0;
}

.quiz-result-pass {
  background: rgba(100, 200, 100, 0.12);
  border: 1px solid rgba(100, 200, 100, 0.4);
}

.quiz-result-pass strong {
  color: #64C864;
}

.quiz-result-fail {
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.3);
}

.quiz-result-fail strong {
  color: #FF6B35;
}

/* Locked "mark complete" button, pending quiz pass */
.btn.quiz-locked {
  opacity: 0.4;
  cursor: not-allowed;
}