/**
 * レスポンシブスタイル
 * タブレット、スマートフォン対応
 */

/* タブレット（768px以上） */
@media (min-width: 768px) {
  main {
    padding: 2rem;
  }

  .container {
    padding: 2rem;
  }

  .gamification-display {
    grid-template-columns: repeat(4, 1fr);
  }

  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .header-container {
    padding: 0 2rem;
  }

  button,
  .btn {
    padding: 0.875rem 1.5rem;
  }
}

/* スマートフォン（479px以下） */
@media (max-width: 479px) {
  body {
    font-size: 14px;
    line-height: 1.5;
  }

  main {
    padding: 1rem 0.75rem;
    min-height: auto;
  }

  .container {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 6px;
  }

  header h1 {
    font-size: 1.25rem;
  }

  .header-container {
    padding: 0 0.75rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  h3 {
    font-size: 1.1rem;
  }

  h4 {
    font-size: 1rem;
  }

  button,
  .btn {
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    width: 100%;
    margin-bottom: 0.5rem;
  }

  .gamification-display {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .gamification-stat {
    padding: 0.75rem;
    border-radius: 6px;
  }

  .gamification-stat-label {
    font-size: 0.75rem;
  }

  .gamification-stat-value {
    font-size: 1.5rem;
  }

  .grid,
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .question-card {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
  }

  .question-card h2 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
  }

  .options {
    gap: 0.5rem;
  }

  .option {
    padding: 0.5rem;
    font-size: 0.875rem;
  }

  .option input[type='radio'] {
    margin-right: 0.5rem;
  }

  .section-progress {
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    border-left-width: 3px;
  }

  .section-progress h3 {
    font-size: 0.9rem;
  }

  .section-progress-text {
    font-size: 0.8rem;
  }

  .message {
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    border-left-width: 3px;
    font-size: 0.875rem;
  }

  .progress-bar {
    height: 16px;
    margin: 0.25rem 0;
  }

  .progress-bar-fill {
    font-size: 0.65rem;
  }

  .progress-text {
    font-size: 0.75rem;
  }

  .level-badge {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
  }

  .flex-between {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .mt-1 {
    margin-top: 0.125rem;
  }

  .mt-2 {
    margin-top: 0.25rem;
  }

  .mt-3 {
    margin-top: 0.75rem;
  }

  .mt-4 {
    margin-top: 1rem;
  }

  .mb-1 {
    margin-bottom: 0.125rem;
  }

  .mb-2 {
    margin-bottom: 0.25rem;
  }

  .mb-3 {
    margin-bottom: 0.75rem;
  }

  .mb-4 {
    margin-bottom: 1rem;
  }

  .p-1 {
    padding: 0.125rem;
  }

  .p-2 {
    padding: 0.25rem;
  }

  .p-3 {
    padding: 0.75rem;
  }

  .p-4 {
    padding: 1rem;
  }

  footer {
    padding: 1rem 0.75rem;
    font-size: 0.75rem;
  }
}

/* 小さいスマートフォン（360px以下） */
@media (max-width: 360px) {
  body {
    font-size: 13px;
  }

  main {
    padding: 0.75rem 0.5rem;
  }

  .container {
    padding: 0.75rem;
  }

  header h1 {
    font-size: 1.1rem;
  }

  h1 {
    font-size: 1.25rem;
  }

  h2 {
    font-size: 1.1rem;
  }

  button,
  .btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }

  .gamification-display {
    grid-template-columns: 1fr;
  }

  .gamification-stat-value {
    font-size: 1.25rem;
  }

  .question-card {
    padding: 0.75rem;
  }

  .question-card h2 {
    font-size: 1rem;
  }
}