/* ===================================================================
   GeminiBuddy.shop スタイルシート (リファクタリング版)
   =================================================================== */

/* =====================================================
   0. 色彩パレット (カラー変数)
   ===================================================== */
:root {
  /* --- タグの色 --- */
  --color-format:           #cfe2ff;
  --color-format-text:      #084298;
  --color-format-hover-bg:  #4a69a7;
  --color-genre:            #d1e7dd;
  --color-genre-text:       #0f5132;
  --color-genre-hover-bg:   #4e8264;
  --color-keyword:          #e9ecef;
  --color-keyword-text:     #495057;
  --color-keyword-hover-bg: #343a40;
  
  /* --- ホバー共通 --- */
  --color-common-hover-text: #ffffff;

  /* --- テキスト & リンク --- */
  --color-text-title: #212529;
  --color-author-hover-bg:  #343a40;
}

/* =====================================================
   1. 基本設定
   ===================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  font-size: 16px;
}
body, h1, h2, h3, p, ul {
  margin: 0;
  padding: 0;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans CJK JP", sans-serif;
  line-height: 1.6;
  background-color: #f8f9fa;
  color: #333; /* ★★★ これが重要 ★★★ */
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
}
ul {
  list-style: none;
}
.icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.125em;
}
/* --- スクリーンリーダー専用のテキストを隠すためのクラス --- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* =====================================================
   2. 全体レイアウト
   ===================================================== */
.site-container {
  max-width: 80rem;
  margin: 0 auto;
  background-color: #ffffff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.main-container {
  display: flex;
  padding: 2rem;
  gap: 2rem;
  flex-grow: 1;
}
.main-content {
  flex-grow: 1;
  min-width: 0;
}
.archive-title {
  font-size: 1.8rem;
  margin-bottom: 2rem;
  border-bottom: 2px solid #eee;
  padding-bottom: 1rem;
}

/* =====================================================
   3. ヘッダー & フッター
   ===================================================== */
.site-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid #dee2e6;
}
.site-title {
  font-size: 2rem;
  font-weight: 700;
}
.site-footer {
  border-top: 1px solid #dee2e6;
  padding: 1.5rem 2rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-left p {
  font-size: 0.9rem;
  color: #6c757d;
}
.footer-right a {
  font-size: 0.9rem;
  color: #6c757d;
  margin-left: 0.75rem;
}

/* =====================================================
   4. サイドメニュー (PC用)
   ===================================================== */
.side-menu {
  width: 13rem;
  flex-shrink: 0;
  position: sticky;
  top: 2rem;
  align-self: flex-start;
}
.side-menu h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.side-menu ul {
  margin-bottom: 1.5rem;
}
.side-menu a.filter-link {
  display: block;
  padding: 0.5rem 1rem;
  margin-left: -1rem;
  border-left: 3px solid transparent;
  transition: all 0.2s ease-in-out;
  color: #495057;
}
.side-menu a.filter-link:hover {
  border-left-color: #212529;
  color: #212529;
  background-color: #f1f3f5;
}

/* =====================================================
   5. 記事カード (index.php) - クリック範囲拡張版
   ===================================================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 2rem;
  align-items: stretch;
}

/* --- カード全体のコンテナ --- */
.card {
  position: relative; /* 子要素を絶対配置するための基準点に */
  display: flex;
  flex-direction: column;
  border: 1px solid #e9ecef;
  border-radius: 0.5rem;
  background-color: #ffffff;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* --- カード全体を覆うメインリンク --- */
.card-link {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1; /* ★階層1: 一番下に敷かれるクリック層 */
}

/* --- カード内の各要素 --- */
/* ★修正★ position: relativeのみ指定し、z-indexは削除します */
.card-image-container,
.card-content,
.card-footer {
  position: relative;
}

.card-image-container {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.card-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.card-content {
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: flex-end; 
  gap: 0.25rem;
}
.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.25rem;
  border-top: 1px solid #f1f3f5;
  font-size: 0.9rem;
  color: #6c757d;
}

/* --- カード内のテキスト要素 --- */
.card-article-title {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text-title);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: calc(1.1rem * 1.4 * 2);
}
.card-novel-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: #495057;
}

/* --- カードフッター内の要素 --- */
.card-footer .card-actions,
.card-footer .card-likes {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.card-footer .icon {
  width: 1.1em;
  height: 1.1em;
}

/* --- クリック可能な個別要素 --- */
.card-tags a,
.card-author-link {
  position: relative;
  z-index: 2; /* ★階層2: メインリンクより手前に来る最前面の層 */
}

.card-author-link {
  align-self: flex-start; /* 親のflexboxいっぱいに広がるのを防ぐ */
}

.card-author-link:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px; /* 少し太めのおしゃれな下線 */
}

/* =====================================================
   6. タグ & リンク (共通部品)
   ===================================================== */
.card-tags {
  max-height: 4.5rem;
  overflow: hidden;
}
.card-tags, .article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding-top: 0.75rem;
}
.tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.75rem;
  border-radius: 9999px;
  white-space: nowrap;
  transition: background-color 0.2s, color 0.2s;
}
.tag-format  { background-color: var(--color-format);  color: var(--color-format-text); }
.tag-genre   { background-color: var(--color-genre);   color: var(--color-genre-text);  }
.tag-keyword { background-color: var(--color-keyword); color: var(--color-keyword-text); }

a.tag:hover { color: var(--color-common-hover-text); }
a.tag-format:hover  { background-color: var(--color-format-hover-bg); }
a.tag-genre:hover   { background-color: var(--color-genre-hover-bg); }
a.tag-keyword:hover { background-color: var(--color-keyword-hover-bg); }

.author-link {
  display: inline-block;
  font-weight: 400;
  color: #6c757d;
  border-radius: 9999px;
  background-color: transparent;
  transition: color 0.2s, text-decoration 0.2s;
  font-size: inherit;
  align-self: flex-start;
}
.author-link:hover {
  color: #212529;
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

/* =====================================================
   7. キーワード一覧ページ (mode=keywords)
   ===================================================== */
.keyword-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.keyword-tag {
  display: inline-flex;
  align-items: baseline;
  background-color: #f1f3f5;
  border: 1px solid #dee2e6;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: #343a40;
  transition: all 0.2s;
}
.keyword-tag:hover {
  background-color: #343a40;
  border-color: #343a40;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}
.keyword-tag-count {
  margin-left: 0.5rem;
  font-size: 0.8rem;
  font-weight: normal;
  background-color: #fff;
  color: #495057;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}
.keyword-tag:hover .keyword-tag-count {
  background-color: #495057;
  color: #fff;
}

/* =====================================================
   8. ページネーション
   ===================================================== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  padding-top: 3rem;
  margin-top: 2rem;
}
.pagination-numbers {
  display: flex;
  gap: 0.5rem;
}
.pagination-link, 
.pagination-number {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 0.5rem;
  border: 1px solid #dee2e6;
  border-radius: 0.5rem;
  font-weight: bold;
  transition: all 0.2s ease-in-out;
  color: #495057;
}
.pagination-ellipsis {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-width: 2.5rem;
  height: 2.5rem;
  color: #adb5bd;
}
.pagination-link:hover, 
.pagination-number:hover {
  background-color: #0078ff;
  color: #fff;
  border-color: #0078ff;
}
.pagination-number.is-active {
  background-color: #212529;
  color: #fff;
  border-color: #212529;
  pointer-events: none;
}


/* ===================================================================
   9. スマートフォン向け表示 (レスポンシブ設定)
   =================================================================== */

/* --- 普段は非表示にしておくスマホ用メニューの要素 --- */
.mobile-menu-radio,
.mobile-menu-fullscreen,
.scroll-menu-trigger {
  display: none;
}


/* --- 画面幅が 60rem (約960px) 以下の場合に適用 --- */
@media (max-width: 60rem) {

  /* --- [スマホ表示] 基本レイアウト調整 --- */
  .main-container {
    flex-direction: column;
    padding: 1.5rem;
  }
  .side-menu {
    display: none; 
  }
  .card-grid {
    min-height: auto;
  }
  .site-footer {
    padding: 1.5rem;
  }
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  /* --- [スマホ表示] ヘッダー下の横並びメニュー (トリガー) --- */
  .scroll-menu-trigger {
    display: flex;
    justify-content: space-around;
    background-color: #fff;
    border-bottom: 1px solid #dee2e6;
    padding: 0 0.5rem;
  }
  .scroll-menu-item {
    padding: 1rem 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: #6c757d;
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    cursor: pointer;
  }
  .scroll-menu-item:hover {
    color: #212529;
  }
  .scroll-menu-item.is-active {
    color: #212529;
    border-bottom-color: #212529;
  }

  /* --- [スマホ表示] フルスクリーンメニュー本体 --- */
  .mobile-menu-fullscreen {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
  }
  /* いずれかのメニュー用ラジオボタンがONになったら表示 */
  #mobile-menu-format:checked  ~ .mobile-menu-fullscreen,
  #mobile-menu-genre:checked   ~ .mobile-menu-fullscreen,
  #mobile-menu-keyword:checked ~ .mobile-menu-fullscreen {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  /* --- [スマホ表示] フルスクリーンメニューのヘッダー --- */
  .mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #dee2e6;
  }
  .mobile-menu-title {
    display: none;
    font-size: 1.2rem;
  }
  #mobile-menu-format:checked  ~ .mobile-menu-fullscreen .format-title,
  #mobile-menu-genre:checked   ~ .mobile-menu-fullscreen .genre-title,
  #mobile-menu-keyword:checked ~ .mobile-menu-fullscreen .keyword-title {
    display: block;
  }
  .mobile-menu-close-button {
    font-size: 2.5rem;
    font-weight: 300;
    line-height: 1;
    cursor: pointer;
    color: #868e96;
  }

  /* --- [スマホ表示] フルスクリーンメニューの各パネル --- */
  .mobile-menu-content {
    padding: 1rem;
    height: calc(100% - 5.5rem);
    overflow-y: auto;
  }
  .mobile-menu-panel {
    display: none;
  }
  #mobile-menu-format:checked  ~ .mobile-menu-fullscreen .format-panel,
  #mobile-menu-genre:checked   ~ .mobile-menu-fullscreen .genre-panel,
  #mobile-menu-keyword:checked ~ .mobile-menu-fullscreen .keyword-panel {
    display: block;
  }
   /* --- [スマホ表示] 形式パネル (縦並び) --- */
  .format-grid-mobile {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 0.5rem;
  }
  .format-grid-mobile .keyword-tag {
    width: 100%;
    font-size: 1.2rem;
    padding: 1.25rem 1rem;
    justify-content: space-between;
  }

  /* --- [スマホ表示] ジャンルパネル (2列グリッド) --- */
  .genre-grid-mobile {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    padding: 0.5rem;
  }
  .genre-grid-mobile .keyword-tag {
    justify-content: space-between;
    padding: 0.75rem 1rem;
  }

  /* --- [スマホ表示] メニュー内のキーワードタイル --- */
  .keyword-grid-mobile {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0.5rem;
  }
  .keyword-grid-mobile .keyword-tag {
    font-size: 0.9rem;
    padding: 0.4rem 0.8rem;
  }
  .keyword-grid-mobile .keyword-tag-count {
    font-size: 0.75rem;
  }
  
  /* --- [スマホ表示] メニュー内タイルのホバーエフェクト --- */
  /* (PCで画面を狭めた際のテスト用) */
  .format-grid-mobile a.keyword-tag:hover,
  .genre-grid-mobile a.keyword-tag:hover,
  .keyword-grid-mobile a.keyword-tag:hover {
    background-color: #343a40;
    border-color: #343a40;
    color: #fff;
    transform: scale(1.03);
  }
  .format-grid-mobile a.keyword-tag:hover .keyword-tag-count,
  .genre-grid-mobile a.keyword-tag:hover .keyword-tag-count,
  .keyword-grid-mobile a.keyword-tag:hover .keyword-tag-count {
      background-color: #6c757d;
  }
}