/* 
   tokaido-responsive.css - 東海道ページレスポンシブ対応（モバイルファースト）
*/

/* ===============================================
   モバイル（デフォルト）
   =============================================== */

/* ギャラリーセクション - モバイル対応 */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 0 1rem; /* モバイルで左右に余白追加 */
  margin: 2rem auto;
  max-width: 100%;
}

.gallery-item {
  height: 250px;
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  margin: 0 0.5rem; /* 左右に少し余白を追加 */
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.8) 0%,
    rgba(0, 0, 0, 0.4) 50%,
    transparent 100%
  );
  color: white;
  padding: 1.5rem;
  text-align: left;
}

.gallery-overlay h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--primary-gold);
}

.gallery-overlay p {
  font-size: 0.9rem;
  line-height: 1.4;
  opacity: 0.9;
}

/* セクション紹介文 */
.section-intro {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 2rem auto;
  padding: 0 1rem;
  color: rgba(60, 60, 60, 0.8);
  font-size: 1.1rem;
  line-height: 1.6;
}

/* サポートセンターセクション - モバイル対応 */
.section + div[style*="margin-top: 4rem"] {
  margin-top: 2rem !important;
}

@media (max-width: 768px) {
  .section + div[style*="margin-top: 4rem"] {
    margin-top: 1.5rem !important;
  }

  /* 東海道ヒーロータイトル - モバイル（横幅連動） */
  .hero-content h1 {
    font-size: clamp(2rem, 12vw, 3.2rem) !important;
    line-height: 1.2 !important;
  }

  /* stations.html専用ヒーロー調整 */
  .stations-hero {
    min-height: 70vh !important; /* タブレットで十分な高さを確保 */
    height: auto !important;
    padding-top: 6.5rem !important; /* ヘッダー分を十分に確保 */
    padding-bottom: 3rem !important;
    display: flex !important;
    align-items: center !important;
  }

  .stations-hero-content {
    padding-top: 1rem !important;
    width: 100% !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
  }

  .stations-title {
    margin-top: 0.5rem !important;
    font-size: clamp(2rem, 8vw, 3rem) !important;
    line-height: 1.2 !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
  }

  .stations-description {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    margin-top: 1rem !important;
  }

  .station-search-container {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    width: 100% !important;
    max-width: 600px !important;
    margin-top: 2rem !important;
  }

  .quick-navigation {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 0.6rem !important;
    justify-content: center !important;
    margin-top: 1.5rem !important;
  }

  .filter-btn {
    padding: 0.6rem 1.2rem !important;
    font-size: 0.9rem !important;
    min-width: auto !important;
    white-space: nowrap !important;
  }
}

@media (max-width: 480px) {
  /* 東海道ヒーローモバイル専用（横幅連動） */
  .hero-content h1 {
    font-size: clamp(1.8rem, 11vw, 2.6rem) !important;
    line-height: 1.1 !important;
  }

  /* stations.html小画面専用調整 */
  .stations-hero {
    padding-top: 7rem !important; /* 小画面でも確実にヘッダー分確保 */
    padding-bottom: 2rem !important;
  }

  .stations-hero-content {
    padding-top: 1rem !important;
    margin-top: 4.5rem !important; /* 追加の上部マージン */
  }

  .stations-title {
    margin-top: 0.5rem !important;
    font-size: clamp(1.6rem, 10vw, 2.4rem) !important;
    line-height: 1.1 !important;
  }

  .stations-description {
    margin-top: 0.8rem !important;
    font-size: 1rem !important;
  }
}

/* モバイルファースト設定 */
.attraction-block,
.attraction-block.reverse {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 2rem 1rem;
  margin-bottom: 2rem;
}

.attraction-image {
  flex: none;
  width: 100%;
  height: 200px;
  overflow: hidden;
  border-radius: 8px;
}

.attraction-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.attraction-content h3 {
  font-size: 1.5rem;
  text-align: center;
}

.attraction-highlights {
  justify-content: center;
}

.stations-title {
  font-size: 2.8rem !important;
}

.stations-description {
  font-size: 1.1rem;
}

.stations-grid {
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding: 0 0.5rem;
}

.tokaido-attractions {
  padding: 0rem 0rem;
  gap: 2rem;
}

/* 検索コンテナの基本設定 */
.station-search-container {
  width: 100%;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.search-box {
  padding: 0.6rem 1rem;
  margin-bottom: 1.2rem;
  width: calc(100% - 2rem); /* 左右1remずつの余白 */
  max-width: 480px; /* より広い最大幅 */
  box-sizing: border-box;
}

/* ===============================================
   タブレット以上 (min-width: 768px)
   =============================================== */

@media (min-width: 768px) {
  /* --bp-md */
  .tokaido-attractions {
    padding: 3rem 1.5rem;
    gap: 3rem;
  }

  /* ギャラリー - タブレット以上 */
  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 0 1.5rem;
  }

  .gallery-item {
    margin: 0; /* タブレット以上では個別margin削除 */
    height: 280px;
  }

  .attraction-block {
    padding: 2rem 1.5rem;
    gap: 2rem;
  }

  .attraction-content h3 {
    font-size: 1.6rem;
  }

  .stations-title {
    font-size: 3.5rem;
  }

  .station-search-container {
    padding: 0 1rem;
  }

  .attraction-block,
  .attraction-block.reverse {
    flex-direction: row;
    gap: 2rem;
    padding: 2rem 1.5rem;
  }

  .attraction-image {
    flex: 0 0 300px;
    width: 300px;
    height: 200px;
  }

  .attraction-content h3 {
    font-size: 1.8rem;
    text-align: left;
  }

  .attraction-highlights {
    justify-content: flex-start;
  }

  .stations-title {
    font-size: 3.5rem !important;
  }

  .stations-description {
    font-size: 1.25rem;
  }

  .stations-grid {
    grid-template-columns: repeat(auto-fill, 320px);
    gap: 2rem;
    padding: 0 1rem;
    justify-content: center;
  }

  .tokaido-attractions {
    padding: 3rem 1.5rem;
    gap: 3rem;
  }
}

/* ===============================================
   デスクトップ (min-width: 1024px)
   =============================================== */

@media (min-width: 1024px) {
  /* --bp-lg */
  .tokaido-attractions {
    padding: 4rem 2rem;
    gap: 4rem;
  }

  /* ギャラリー - デスクトップ */
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding: 0 2rem;
  }

  .gallery-item {
    height: 320px;
  }

  /* 宿場町グリッド - デスクトップ */
  .stations-grid {
    grid-template-columns: repeat(auto-fill, 320px);
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
    justify-content: center;
  }

  .station-highlight {
    width: 420px !important;
    min-width: 420px !important;
    max-width: 420px !important;
    box-sizing: border-box !important;
  }

  .station-image,
  .station-info {
    width: 100% !important;
  }

  .attraction-block {
    padding: 2rem;
    gap: 3rem;
  }

  .attraction-content h3 {
    font-size: 2rem;
  }

  .stations-title {
    font-size: 4rem !important;
  }

  .search-filters {
    gap: 0.6rem;
  }

  .filter-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    min-width: 100px;
  }

  .tokaido-section {
    padding: 1.5rem 1rem 3rem 1rem;
  }
}

/* ===============================================
   スマートフォン対応 (max-width: 480px)
   =============================================== */

@media (max-width: 480px) /* --bp-sm */ {
  /* モバイルでヒーロー背景画像のボケを修正 */
  .hero.stations-hero {
    background-attachment: scroll !important; /* fixedからscrollに変更 */
  }

  /* area-titleの上マージンを調整 */
  .area-title {
    margin-top: 1rem !important; /* 48px → 24px程度に削減 */
  }

  .tokaido-attractions {
    gap: 1rem;
  }

  .attraction-block {
    padding: 1.5rem 1rem;
  }

  .attraction-image {
    height: 150px;
  }

  .attraction-content h3 {
    font-size: 1.3rem;
  }

  .attraction-content p {
    font-size: 1rem;
  }

  .stations-title {
    font-size: 2.2rem;
  }

  .stations-description {
    font-size: 1rem;
    line-height: 1.6;
  }

  .station-search-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0; /* パディングを削除して親の制約を除去 */
  }

  .quick-navigation {
    width: 100vw; /* フル幅でスクロールを有効に */
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%); /* 右側も画面端まで拡張 */
    padding: 0.5rem 0; /* 上下のみパディング、左右は0 */
    overflow-x: auto;
    display: flex;
    gap: 0.6rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    box-sizing: border-box;
  }

  /* 最初のボタンに左マージンを追加 */
  .quick-navigation .filter-btn:first-child {
    margin-left: 1rem; /* 左端ボタンの左マージン */
  }

  /* 最後のボタンに右マージンを追加して画面端まで表示 */
  .quick-navigation .filter-btn:last-child {
    margin-right: 0; /* 右端余白なしで画面端まで表示 */
  }

  .quick-navigation::-webkit-scrollbar {
    display: none;
  }

  .search-box {
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    margin-bottom: 1rem;
    width: calc(100% - 1.5rem); /* 左右の余白を減らす */
    max-width: 100%; /* 最大幅制限を解除 */
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
    flex-shrink: 0; /* 縮小を防止 */
  }

  .search-box input {
    font-size: 0.9rem;
    padding: 0.2rem;
  }

  .search-box input::placeholder {
    font-size: 0.85rem;
  }

  /* モバイル横スクロールフィルター */
  .quick-navigation {
    display: flex;
    overflow-x: auto;
    gap: 0.1rem;
    padding: -1rem 0;
    margin-bottom: 1rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE */
  }

  .quick-navigation::-webkit-scrollbar {
    display: none; /* Chrome, Safari */
  }

  .filter-btn {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    min-width: 80px;
    white-space: nowrap;
    flex-shrink: 0;
    margin-bottom: 0;
  }

  .station-card {
    margin-bottom: 1rem;
  }

  .station-header {
    height: 150px;
  }

  .station-content {
    padding: 1rem;
  }

  .station-title {
    font-size: 1.1rem;
  }

  .contact-info p {
    font-size: 1rem;
    flex-direction: column;
    gap: 0.3rem;
  }

  .tokaido-section {
    padding: 1rem 0.8rem 2rem 0.8rem;
  }
}

/* ===============================================
   極小画面対応 (max-width: 360px)
   =============================================== */

@media (max-width: 360px) /* --bp-xs-small */ {
  /* stations.html極小画面専用調整 */
  .stations-hero {
    padding-top: 7.5rem !important; /* 極小画面でさらに余裕を持たせる */
  }

  .stations-hero-content {
    margin-top: 5rem !important;
  }

  .stations-title {
    font-size: clamp(1.4rem, 9vw, 2rem) !important;
  }
  .attraction-block {
    padding: 1rem 0.8rem;
  }

  .stations-title {
    font-size: 1.8rem;
  }

  .search-box {
    padding: 0.3rem 0.6rem;
  }

  .search-box input {
    font-size: 0.85rem;
  }

  .search-box input::placeholder {
    font-size: 0.8rem;
  }

  .filter-btn {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
    min-width: 70px;
  }

  .station-header {
    height: 120px;
  }

  .contact-info p {
    font-size: 0.9rem;
  }
}

/* ===============================================
   大画面対応 (min-width: 1400px)
   =============================================== */

@media (min-width: 1400px) /* --bp-xl */ {
  .tokaido-attractions {
    max-width: 1400px;
    padding: 5rem 3rem;
    gap: 5rem;
  }

  .attraction-block {
    padding: 4rem 3rem;
    gap: 4rem;
  }

  .stations-grid {
    grid-template-columns: repeat(auto-fill, 320px);
    gap: 2.5rem;
    justify-content: center;
  }

  .stations-title {
    font-size: 5rem;
  }
}

/* ===============================================
   トップに戻るボタン - レスポンシブ対応
   =============================================== */

/* モバイル対応（768px以下） */
@media (max-width: 768px) {
  .back-to-top {
    width: 48px;
    height: 48px;
    bottom: 80px; /* 言語切り替えボタンとの競合回避 */
    right: 16px;
    font-size: 18px;
  }
}

/* 極小画面対応（360px以下） */
@media (max-width: 360px) {
  .back-to-top {
    width: 44px;
    height: 44px;
    bottom: 75px;
    right: 12px;
    font-size: 16px;
  }
}