/* General page style */
body {
  font-family: 'Inter', Arial, sans-serif;
  background: #f4f4f4;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

/* Quiz card */
.quiz-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  padding: 24px;
  width: 90%;
  max-width: 500px;
}

/* Progress text */
.progress {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 12px;
  text-align: right;
}

/* Question text */
.question {
  font-size: 1.25rem;
  margin-bottom: 20px;
}

/* Options container */
.options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Option buttons */
.option {
  padding: 12px;
  font-size: 1.1rem;
  border: 2px solid #ddd;
  border-radius: 8px;
  background: #f9f9f9;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.option:hover {
  background: #eef5ff;
  border-color: #007BFF;
}

.option.selected {
  background: #007BFF;
  color: white;
  border-color: #007BFF;
}

/* Next button */
#next-btn {
  margin-top: 40px;
  padding: 12px;
  width: 100%;
  font-size: 1rem;
  background: #007BFF;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
}

#next-btn:disabled {
  background: #ccc;
  cursor: not-allowed;
}

#next-btn:hover:not(:disabled) {
  background: #0056b3;
}

/* Correct / Wrong styles after selection */
.option.correct {
  background: #d4edda;
  border-color: #28a745;
  color: #155724;
}

.option.wrong {
  background: #f8d7da;
  border-color: #dc3545;
  color: #721c24;
}