/* ========================================
   ファイル選択�Eライブラリ
======================================== */

/* =====================================
[REF]
- HTML: #fileInput.file-input-hidden
- JS: assets/js/ui/elements.js（fileInput 取得）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.file-input-hidden {
  position: fixed;
  top: -100px;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  /* display:none; visibility:hidden; pointer-events:none; removed */
}

/* =====================================
[REF]
- HTML: ライブラリ内の .file-input-label
- JS: なし
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.file-input-label {
  display: block;
  padding: 2rem;
  border: 2px dashed var(--border);
  border-radius: 12px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

/* =====================================
[REF]
- HTML: .file-input-label:hover
- JS: なし
- STATE: :hover
- LAYER: なし
- SPLIT: LAST
===================================== */
.file-input-label:hover {
  border-color: var(--accent);
  background: rgba(139, 92, 246, 0.05);
}

/* =====================================
[REF]
- HTML: .file-input-label span
- JS: なし
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.file-input-label span {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

/* =====================================
[REF]
- HTML: .file-input-label input
- JS: なし
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.file-input-label input {
  display: none;
}

/* =====================================
[REF]
- HTML: #librarySection .library-section h4
- JS: assets/js/ui/renderers.js（見出し更新）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-section h4 {
  font-size: 1.125rem;
}

/* =====================================
[REF]
- HTML: #librarySection .library-controls
- JS: なし
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

/* =====================================
[REF]
- HTML: #librarySection .library-view-toggle
- JS: assets/app.js（表示切替）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-view-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* =====================================
[REF]
- HTML: #libraryViewGrid / #libraryViewList .library-view-btn
- JS: assets/app.js（表示切替）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-view-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

/* =====================================
[REF]
- HTML: .library-view-btn:hover
- JS: なし
- STATE: :hover
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-view-btn:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

/* =====================================
[REF]
- HTML: .library-view-btn.active
- JS: assets/app.js（表示切替で active 付与）
- STATE: .active
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-view-btn.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

/* =====================================
[REF]
- HTML: #libraryGrid.library-grid
- JS: assets/js/ui/renderers.js（ライブラリ描画）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}

/* =====================================
[REF]
- HTML: #libraryGrid.library-grid[data-view="list"]
- JS: assets/app.js（表示切替で data-view 更新）
- STATE: [data-view="list"]
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-grid[data-view="list"] {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* =====================================
[REF]
- HTML: .library-card（ライブラリカード）
- JS: assets/js/ui/renderers.js（カード生成）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

/* =====================================
[REF]
- HTML: .library-grid[data-view="list"] .library-card
- JS: assets/app.js（表示切替で data-view 更新）
- STATE: [data-view="list"]
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-grid[data-view="list"] .library-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
}

/* =====================================
[REF]
- HTML: .library-card:hover
- JS: なし
- STATE: :hover
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* =====================================
[REF]
- HTML: .library-cover（表紙）
- JS: assets/js/ui/renderers.js（表紙描画）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
/* .library-cover is no longer used since icons were removed */
.library-cover {
  display: none;
}

/* =====================================
[REF]
- HTML: .library-title span（ホバー時のスクロール）
- JS: なし
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
@keyframes marquee {
  0% {
    transform: translateX(0);
  }

  20% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(calc(-100% + 200px));
  }

  /* 簡易的なスクロール */
}

/* =====================================
[REF]
- HTML: .library-title
- JS: assets/js/ui/renderers.js（タイトル描画）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-title {
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: normal;
  line-height: 1.3;
  min-height: 3.9em;
  /* 3 lines worth of space */
}

/* =====================================
[REF]
- HTML: .library-title span
- JS: なし
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-title span {
  display: inline-block;
  transition: transform 0.3s;
}

/* =====================================
[REF]
- HTML: .library-card:hover .library-title span
- JS: なし
- STATE: :hover
- LAYER: なし
- SPLIT: LAST
===================================== */
/* ホバー時にスクロール */
.library-card:hover .library-title span {
  /* 文字数に応じた挙動が難しいため、transformで少し動かす程度にするか、
     またはJSで幅を計算しないと綺麗なループは難しい。
     ここでは簡易的に左へスクロールさせる */
  transform: translateX(max(0px, calc(-100% + 100%)));
  /* 仮 */
}

/* =====================================
[REF]
- HTML: .library-card:hover .library-title span
- JS: なし
- STATE: :hover
- LAYER: なし
- SPLIT: LAST
===================================== */
/* より単純なアプローチ：ホバーでtitle属性が出るので、CSSではtext-overflow: ellipsisのままにするか、
   あるいはマーキーアニメーションを適用する。
   ユーザー要望は「スクロールをループ」なのでmarqueeを採用 */

/* Marquee is removed as we now use wrapping and line-clamp */
.library-card:hover .library-title span {
  /* animation: marquee 8s linear infinite; removed */
  min-width: 100%;
}

/* =====================================
[REF]
- HTML: .library-title span（ホバー時のスクロール）
- JS: なし
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
@keyframes marquee {
  0% {
    transform: translateX(0);
  }

  30% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-100%);
  }
}

/* =====================================
[REF]
- HTML: .library-grid[data-view="list"] .library-title
- JS: assets/app.js（表示切替で data-view 更新）
- STATE: [data-view="list"]
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-grid[data-view="list"] .library-title {
  flex: 1;
  white-space: nowrap;
  margin-bottom: 0;
  display: block;
  -webkit-line-clamp: initial;
  min-height: 0;
}

/* =====================================
[REF]
- HTML: .library-row-2
- JS: assets/js/ui/renderers.js（メタ情報描画）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
/* 2行目（メタ情報＋バッジ） */
.library-row-2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--muted);
  width: 100%;
  overflow: hidden;
}

/* =====================================
[REF]
- HTML: .library-meta
- JS: assets/js/ui/renderers.js（メタ情報描画）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-meta {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* =====================================
[REF]
- HTML: .library-grid[data-view="list"] .library-meta
- JS: assets/app.js（表示切替で data-view 更新）
- STATE: [data-view="list"]
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-grid[data-view="list"] .library-meta {
  margin-left: 0;
  /* list viewでの配置調整 */
  flex: 0 0 auto;
}

/* =====================================
[REF]
- HTML: .library-actions（旧actions）
- JS: なし
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-actions {
  display: none;
  /* 古いactionsは非表示にするか、構造変更で削除 */
}

/* =====================================
[REF]
- HTML: .library-type-badge
- JS: assets/js/ui/renderers.js（種別バッジ表示）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
/* バッジ類 */
.library-type-badge {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(139, 92, 246, 0.1);
  padding: 0.1rem 0.3rem;
  border-radius: 4px;
}

/* =====================================
[REF]
- HTML: .library-info
- JS: assets/js/ui/renderers.js（カード情報描画）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
  overflow: hidden;
  width: 100%;
}

/* =====================================
[REF]
- HTML: #cloudAttachButton.library-attach（クラウド添付ボタン）
- JS: assets/app.js（添付処理）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
.library-attach {
  /* 既存スタイル維持 */
  font-size: 0.7rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  cursor: pointer;
  margin-left: auto;
}

/* =====================================
[REF]
- HTML: #cloudAttachButton.library-attach:hover
- JS: なし
- STATE: :hover
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-attach:hover {
  border-color: var(--accent);
}

/* =====================================
[REF]
- HTML: #library-search-input.library-search-input
- JS: assets/app.js（検索入力）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
/* ライブラリ検索入力欄 */
.library-search-input {
  flex: 1;
  min-width: 120px;
  max-width: 300px;
  padding: 0.5rem 0.75rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
}

/* =====================================
[REF]
- HTML: #library-search-input.library-search-input:focus
- JS: なし
- STATE: :focus
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-search-input:focus {
  outline: none;
  border-color: var(--accent);
}

/* =====================================
[REF]
- HTML: #library-search-input.library-search-input::placeholder
- JS: なし
- STATE: ::placeholder
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-search-input::placeholder {
  color: var(--muted);
}

/* =====================================
[REF]
- HTML: .library-card（削除ボタン配置用）
- JS: assets/js/ui/renderers.js（カード生成）
- STATE: なし
- LAYER: なし
- SPLIT: GROUP
===================================== */
/* ライブラリカード削除ボタン */
.library-card {
  position: relative;
}

/* =====================================
[REF]
- HTML: .library-delete-btn
- JS: assets/app.js（削除処理）
- STATE: なし
- LAYER: z-index: 1
- SPLIT: GROUP
===================================== */
.library-delete-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.9);
  color: #fff;
  font-size: 0.75rem;
  font-weight: bold;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* =====================================
[REF]
- HTML: .library-card:hover .library-delete-btn
- JS: なし
- STATE: :hover
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-card:hover .library-delete-btn {
  opacity: 1;
}

/* =====================================
[REF]
- HTML: .library-delete-btn:hover
- JS: なし
- STATE: :hover
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-delete-btn:hover {
  background: rgba(220, 38, 38, 1);
}

/* =====================================
[REF]
- HTML: .library-grid[data-view="list"] .library-delete-btn
- JS: assets/app.js（表示切替で data-view 更新）
- STATE: [data-view="list"]
- LAYER: なし
- SPLIT: LAST
===================================== */
/* リスト表示時の削除ボタン位置調整 */
.library-grid[data-view="list"] .library-delete-btn {
  position: static;
  opacity: 1;
  margin-left: 0.5rem;
}

/* =====================================
[REF]
- HTML: .library-card.marked-for-delete
- JS: assets/app.js（削除マーク付与）
- STATE: .marked-for-delete
- LAYER: なし
- SPLIT: LAST
===================================== */
/* 削除マーク付きカード */
.library-card.marked-for-delete {
  opacity: 0.6;
  filter: grayscale(100%);
  background: var(--bg-secondary);
}

/* =====================================
[REF]
- HTML: .library-card.marked-for-delete::after
- JS: assets/app.js（削除マーク付与）
- STATE: .marked-for-delete
- LAYER: z-index: 10
- SPLIT: LAST
===================================== */
.library-card.marked-for-delete::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.1);
  pointer-events: none;
  /* ボタンクリックを妨げない */
  z-index: 10;
}

/* =====================================
[REF]
- HTML: .library-delete-btn.undo-mode
- JS: assets/app.js（やり直しモード）
- STATE: .undo-mode
- LAYER: z-index: 20
- SPLIT: LAST
===================================== */
/* やり直しボタン */
.library-delete-btn.undo-mode {
  background: var(--accent);
  opacity: 1 !important;
  /* 強制的に表示 */
  z-index: 20;
  /* オーバーレイより上に表示 */
}

/* =====================================
[REF]
- HTML: .library-delete-btn.undo-mode:hover
- JS: なし
- STATE: .undo-mode :hover
- LAYER: なし
- SPLIT: LAST
===================================== */
.library-delete-btn.undo-mode:hover {
  background: var(--text);
}