body {
  font-family: var(--font-family);
  color: var(--text-primary);
}

.stats-container {
  max-width: 1100px;
  margin: 60px auto;
  padding: 40px 20px;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  border-radius: 16px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 20px;
}

.stat-card {
  background: var(--white);
  padding: 30px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: transform 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.stat-icon {
  font-size: 48px;
  display: block;
  margin-bottom: 15px;
}

.stat-card .number {
  display: block;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.stat-card .label {
  display: block;
  font-size: 16px;
  color: var(--text-secondary);
  font-weight: 500;
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .stat-card .number {
    font-size: 28px;
  }

  .stat-icon {
    font-size: 36px;
  }
}

.region-section {
  max-width: 1100px;
  margin: 40px auto 60px;
  padding: 0 20px;
}

.region-title {
  font-size: 26px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 24px;
}

.region-map {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.region-card {
  display: block;
  padding: 16px 20px;
  border-radius: 8px;
  border-left: 5px solid transparent;
  background: var(--white);
  color: #333;
  text-decoration: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.region-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
}

.region-name {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 4px;
}

.region-prefs {
  display: block;
  font-size: 0.8rem;
  color: #666;
}

.region-hokkaido { border-left-color: #1B9CFC; background: #EBF5FF; }
.region-tohoku { border-left-color: #6C5CE7; background: #F0EEFF; }
.region-kanto { border-left-color: #E17055; background: #FFF0ED; }
.region-koshinetsu { border-left-color: #00B894; background: #E8FBF5; }
.region-tokai { border-left-color: #FDCB6E; background: #FFFBF0; }
.region-kansai { border-left-color: #E84393; background: #FFF0F6; }
.region-chugoku { border-left-color: #00CEC9; background: #E8FFFE; }
.region-shikoku { border-left-color: #F39C12; background: #FFF8EC; }
.region-kyushu { border-left-color: #FF6B6B; background: #FFF0F0; }

.region-hokkaido:hover { background: #D6EBFF; }
.region-tohoku:hover { background: #E0DCFF; }
.region-kanto:hover { background: #FFE0D9; }
.region-koshinetsu:hover { background: #D0F5E8; }
.region-tokai:hover { background: #FFF3D6; }
.region-kansai:hover { background: #FFD6E8; }
.region-chugoku:hover { background: #D0FFFC; }
.region-shikoku:hover { background: #FFEFD6; }
.region-kyushu:hover { background: #FFD6D6; }

@media (max-width: 768px) {
  .region-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .region-card {
    padding: 16px 20px;
  }
}

@media (max-width: 375px) {
  .region-map {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   STEP 3: トップページ スマホ対応
   ======================================== */
@media screen and (max-width: 768px) {
  .region-grid {
    grid-template-columns: 1fr !important;
    gap: 12px;
  }

  .region-card {
    padding: 16px;
  }

  .region-card .prefectures {
    font-size: 12px;
  }
}

/* ========================================
   スライダー (range input) スタイル
   ======================================== */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  background: #dbe4ff;
  border-radius: 4px;
  outline: none;
  cursor: pointer;
}

/* WebKit系ブラウザ（Chrome, Safari, Edge）のthumb */
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  background: #1a56db;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(26, 86, 219, 0.3);
}

/* Firefox のthumb */
input[type="range"]::-moz-range-thumb {
  width: 24px;
  height: 24px;
  background: #1a56db;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(26, 86, 219, 0.3);
}

/* Firefox のtrack */
input[type="range"]::-moz-range-track {
  height: 8px;
  background: #dbe4ff;
  border-radius: 4px;
}

/* スマホでタッチしやすいサイズ */
@media (max-width: 768px) {
  input[type="range"] {
    height: 10px;
  }
  input[type="range"]::-webkit-slider-thumb {
    width: 28px;
    height: 28px;
  }
  input[type="range"]::-moz-range-thumb {
    width: 28px;
    height: 28px;
  }
}

/* ========================================
   ハンバーガーメニュー
   ======================================== */
.hamburger-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 3px;
  background: #333;
  margin: 4px 0;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* スマホ: ハンバーガー表示、ナビ非表示 */
@media (max-width: 768px) {
  .hamburger-btn {
    display: block;
    position: absolute;
    top: 16px;
    right: 16px;
  }

  /* ヘッダーをposition:relativeにする */
  header {
    position: relative;
  }

  /* ナビメニューをデフォルトで非表示 */
  header nav {
    display: none;
    flex-direction: column;
    width: 100%;
    background: #fff;
    padding: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border-radius: 0 0 12px 12px;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
  }

  /* ナビメニューが開いた状態 */
  header nav.open {
    display: flex;
  }

  /* ナビリンクのスタイル */
  header nav a {
    padding: 12px 16px;
    border-bottom: 1px solid #eee;
    text-decoration: none;
    color: #333;
    font-size: 0.95rem;
  }

  header nav a:last-child {
    border-bottom: none;
  }

  /* ハンバーガーアニメーション（開いた状態） */
  .hamburger-btn.open .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .hamburger-btn.open .hamburger-line:nth-child(2) {
    opacity: 0;
  }
  .hamburger-btn.open .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}

/* ===== Footer Links ===== */
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px 24px;
  text-align: center;
}
.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 32px;
  margin-bottom: 20px;
}
.footer-links a {
  color: #ffffff;
  text-decoration: none;
  font-size: 14px;
  opacity: 0.85;
  transition: opacity 0.2s;
}
.footer-links a:hover {
  opacity: 1;
  text-decoration: underline;
}
footer {
  background: #1a1a2e;
  color: #ffffff;
}
footer .copyright {
  font-size: 12px;
  opacity: 0.6;
  margin: 0;
}