/* --- Layout Structure (App Shell) --- */
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html, body { height: 100%; overflow: hidden; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: #f5f5f7; color: #333; font-size: 16px; }
        #app-container { display: flex; flex-direction: column; height: 100%; }
        #app-header { flex: 0 0 auto; z-index: 1000; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
        .middle-area { flex: 1 1 auto; display: flex; flex-direction: column; overflow: hidden; position: relative; }
        #app-content { flex: 1 1 auto; overflow-y: auto; -webkit-overflow-scrolling: touch; position: relative; display: flex; flex-direction: column; background: #f5f5f7; }
        #app-footer { flex: 0 0 auto; z-index: 5000; background: #fff; border-top: 1px solid #ddd; box-shadow: 0 -2px 10px rgba(0,0,0,0.05); }
        
        .event-title-bar { background: #eee; color: #007bff; padding: 10px; font-size: 14px; text-align: center; font-weight: bold; border-bottom: 1px solid #ddd; cursor: pointer; }
        .event-title-bar:hover { background: #e0e0e0; }
        .nav-bar { height: 60px; display: flex; align-items: center; padding: 0 15px; justify-content: space-between; gap: 10px; }
        .menu-btn { font-size: 26px; padding: 5px; cursor: pointer; }
        .current-category { font-size: 16px; font-weight: bold; flex-grow: 1; text-align: center; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
        .grid-ctrl-group { display: flex; align-items: center; background: #eee; border-radius: 6px; padding: 3px; flex-shrink: 0; }
        .grid-btn { padding: 6px 12px; font-size: 13px; cursor: pointer; border-radius: 4px; color: #555; font-weight: bold; }
        .grid-btn.active { background: #fff; color: #007bff; box-shadow: 0 1px 2px rgba(0,0,0,0.1); }

        .gallery-container { padding: 10px; display: grid; gap: 10px; padding-bottom: 20px; }
        .gallery-container.grid-small  { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
        .gallery-container.grid-medium { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
        .gallery-container.grid-large  { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
        
        .photo-card { position: relative; background: #fff; border-radius: 4px; box-shadow: 0 1px 3px rgba(0,0,0,0.1); overflow: hidden; cursor: pointer; border: 3px solid transparent; }
        .photo-frame { width: 100%; aspect-ratio: 1/1; background: #e0e0e0; position: relative; }
        .photo-frame img { width: 100%; height: 100%; object-fit: contain; }
        .thumb-fav-btn { position: absolute; bottom: 5px; right: 5px; width: 32px; height: 32px; background: rgba(0,0,0,0.3); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 18px; transition: 0.2s; }
        .thumb-fav-btn.active { background: #ff4081; }
        .file-name-disp { font-size: 13px; font-weight: bold; color: #444; padding: 8px 4px; text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; background: #fff; border-top: 1px solid #eee; }
        .photo-card.has-fav { border-color: #ff4081; }
        .photo-card.has-cart { border-color: #007bff !important; }

        .top-page-wrapper { padding: 20px; max-width: 800px; margin: 0 auto; width: 100%; display: none; flex-direction: column; gap: 20px; }
        .top-hero { background: #fff; border-radius: 12px; padding: 30px 20px; text-align: center; box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
        .top-title { font-size: 22px; font-weight: bold; color: #333; margin-bottom: 15px; }
        .top-deadline-box { display: inline-block; background: #fff0f0; border: 1px solid #ffcdd2; color: #d32f2f; padding: 10px 20px; border-radius: 30px; font-weight: bold; margin-bottom: 20px; }
        .top-desc { font-size: 15px; color: #555; line-height: 1.6; text-align: left; }
        .top-btn { display: block; width: 100%; max-width: 300px; margin: 20px auto 0; padding: 15px; background: #007bff; color: #fff; border: none; border-radius: 30px; font-size: 18px; font-weight: bold; cursor: pointer; box-shadow: 0 4px 6px rgba(0,123,255,0.2); transition: 0.2s; }
        .top-btn:hover { background: #0056b3; transform: translateY(-2px); }

        /* 商品説明パネル（トップページ） */
        .tp-products { display: flex; flex-direction: column; gap: 16px; }
        .tp-product-box { background: #fff; border-radius: 12px; padding: 20px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
        .tp-product-title { font-size: 18px; font-weight: bold; color: #007bff; margin-bottom: 10px; border-bottom: 2px solid #eef4ff; padding-bottom: 8px; }
        .tp-product-body { font-size: 14px; color: #555; line-height: 1.7; white-space: pre-wrap; }
        .tp-product-imgs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
        .tp-product-img { width: calc(33.333% - 7px); max-width: 220px; height: auto; border-radius: 6px; object-fit: cover; cursor: zoom-in; box-shadow: 0 1px 4px rgba(0,0,0,0.1); }
        @media (max-width: 600px) { .tp-product-img { width: calc(50% - 5px); } }

        .footer-buttons { display: flex; justify-content: space-around; padding: 10px 0; border-bottom: 1px solid #f0f0f0; }
        .footer-item { text-align: center; width: 50%; font-size: 11px; color: #888; cursor: pointer; position: relative; }
        .footer-item.active { color: #ff4081; font-weight: bold; }
        .icon-box { font-size: 24px; position: relative; display: inline-block; }
        .badge { position: absolute; top: -5px; right: -10px; background: #007bff; color: #fff; font-size: 10px; padding: 2px 5px; border-radius: 10px; display: none; }
        .badge.show { display: block; }
        .footer-links { text-align: center; padding: 10px 5px 5px; background: #fafafa; font-size: 11px; }
        .footer-links a { color: #666; text-decoration: none; margin: 0 8px; display: inline-block; padding: 2px 0; }
        .footer-links a:hover { text-decoration: underline; color: #007bff; }
        .footer-copyright { text-align: center; padding: 5px 8px 10px; font-size: 10px; color: #999; background: #fafafa; }

        .side-menu-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.4); z-index: 2000; opacity: 0; visibility: hidden; transition: 0.3s; }
        .side-menu-overlay.open { opacity: 1; visibility: visible; }
        .side-menu { position: fixed; top: 0; left: 0; bottom: 0; width: 280px; background: #fff; z-index: 2100; transform: translateX(-100%); transition: 0.3s; overflow: hidden; display: flex; flex-direction: column; }
        .side-menu.open { transform: translateX(0); }
        /* ★上部（トップページ／フォルダ選択見出し）は縮めず固定、フォルダ一覧だけ内部スクロール。
           以前は side-menu 全体を overflow-y:auto にしていたが、flex column で子が縮み scrollHeight==clientHeight となり
           iOSで「ドラッグしても戻る＝スクロール不可」になっていた。min-height:0 で子が縮めるようにし内部スクロールを有効化。 */
        .top-nav-btn, .drawer-header { flex: 0 0 auto; }
        #folderListContainer {
            flex: 1 1 auto; min-height: 0; overflow-y: auto;
            -webkit-overflow-scrolling: touch; overscroll-behavior: contain;
            padding-bottom: 160px; /* 最下部フォルダが下部フッター(♥/🛒/リンク)に隠れないための余白 */
        }
        .drawer-header { background: #f9f9f9; padding: 25px 20px; font-weight: bold; border-bottom: 1px solid #eee; font-size: 18px; }
        .top-nav-btn { display: flex; align-items: center; padding: 15px 20px; background: #eef7ff; color: #007bff; font-weight: bold; cursor: pointer; border-bottom: 1px solid #cce5ff; }
        .top-nav-btn:hover { background: #dcefff; }

        .tree-ul { list-style: none; padding: 0; margin: 0; }
        .tree-li { border-bottom: 1px solid #f5f5f5; }
        .tree-label { padding: 12px 15px; cursor: pointer; display: flex; align-items: center; justify-content: space-between; font-size: 16px; transition: 0.2s; color: #333; }
        .tree-label:hover { background: #f0f8ff; }
        .tree-label.active { background: #eef7ff; color: #007bff; font-weight: bold; border-left: 4px solid #007bff; padding-left: 11px; }
        .tree-child-ul { display: none; background: #fafafa; padding-left: 0; }
        .tree-child-ul.open { display: block; }
        .tree-child-ul .tree-label { padding-left: 30px; }
        .tree-child-ul .tree-child-ul .tree-label { padding-left: 45px; }
        .tree-arrow { width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; color: #999; font-size: 12px; transform: rotate(0deg); transition: 0.2s; cursor: pointer; }
        .tree-arrow.open { transform: rotate(90deg); }
        .tree-arrow.hidden { visibility: hidden; }
        .badge-count { font-size: 11px; background: #eee; padding: 2px 6px; border-radius: 10px; color: #666; margin-left: 5px; }

        .login-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: #fff; z-index: 9999; display: flex; flex-direction: column; justify-content: center; align-items: center; padding: 20px; text-align: center; }
        .login-box { max-width: 400px; width: 100%; }
        .login-logo { font-size: 24px; font-weight: bold; margin-bottom: 30px; }
        .login-input { width: 100%; padding: 15px; margin-bottom: 15px; font-size: 16px; border: 1px solid #ddd; border-radius: 8px; background: #fafafa; }
        .login-btn { width: 100%; padding: 15px; font-size: 18px; font-weight: bold; background: #007bff; color: #fff; border: none; border-radius: 8px; cursor: pointer; }
        .login-error { color: #dc3545; margin-top: 15px; font-size: 14px; min-height: 20px; }

        .modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: #f0f0f0; z-index: 6000; display: none; flex-direction: column; }
        .modal.open { display: flex; animation: fadeIn 0.2s; }
        .modal-header { flex: 0 0 50px; display: flex; justify-content: space-between; align-items: center; padding: 0 15px; background: #fff; border-bottom: 1px solid #ddd; z-index: 30; font-weight: bold; }
        .close-btn { font-size: 30px; cursor: pointer; padding: 0 10px; }

        .modal-content-area { flex: 1 1 auto; display: flex; flex-direction: column; overflow: hidden; background: #e0e0e0; }
        .modal-left-pane { flex: 1; display: flex; flex-direction: column; overflow: hidden; position: relative; }
        .modal-img-container { flex: 1; min-height: 0; display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; }
        
        .modal-img { max-width: 100%; max-height: 100%; object-fit: contain; transition: transform 0.3s; }
        .modal-img.in-cart { border: 4px solid #007bff; box-sizing: border-box; }

        .drag-guard { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 5; cursor: zoom-in; }
        .drag-guard.zoomed { cursor: grab; }
        .drag-guard.zoomed:active { cursor: grabbing; }

        .nav-zone { position: absolute; top: 0; bottom: 0; width: 20%; z-index: 10; cursor: pointer; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,0.02); transition: background 0.2s; }
        .nav-zone:hover { background: rgba(0,0,0,0.1); }
        .nav-zone.left { left: 0; }
        .nav-zone.right { right: 0; }
        .nav-arrow { color: #fff; font-size: 60px; font-weight: bold; text-shadow: 0 0 10px rgba(0,0,0,0.7); user-select: none; opacity: 0.7; transition: opacity 0.2s, transform 0.2s; }
        .nav-zone:hover .nav-arrow { opacity: 1; transform: scale(1.2); }
        .zoom-hint { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); background: rgba(0,0,0,0.6); color: #fff; padding: 8px 16px; border-radius: 20px; font-size: 13px; pointer-events: none; opacity: 0.9; z-index: 15; display: flex; align-items: center; gap: 5px; white-space: nowrap; }

        /* 写真の上に重ねる「お気に入り」オーバーレイハート（マウス移動を最小化） */
        .modal-fav-float { position: absolute; top: 16px; right: 16px; z-index: 20; width: 52px; height: 52px; border-radius: 50%; background: rgba(0,0,0,0.45); color: rgba(255,255,255,0.9); display: flex; align-items: center; justify-content: center; font-size: 28px; line-height: 1; cursor: pointer; transition: transform 0.15s, background 0.2s, color 0.2s; -webkit-tap-highlight-color: transparent; user-select: none; }
        .modal-fav-float:hover { transform: scale(1.12); background: rgba(0,0,0,0.6); }
        .modal-fav-float:active { transform: scale(0.95); }
        .modal-fav-float.active { color: #ff4081; }
        /* PC専用のキーボード操作ヒント */
        .kbd-hint { color: #aaa; font-size: 12px; user-select: none; }
        .kbd-hint kbd { background: #eee; color: #555; border-radius: 4px; padding: 1px 6px; font-family: monospace; font-size: 11px; margin: 0 2px; }
        @media (max-width: 900px) { .kbd-hint { display: none; } }

        .modal-filename-bar { flex: 0 0 auto; background: #fff; padding: 12px; text-align: center; font-weight: bold; font-size: 18px; color: #333; border-top: 1px solid #ddd; }
        .modal-right-pane { background: #fff; flex: 0 0 auto; overflow-y: auto; max-height: 40%; }
        .modal-controls { padding: 15px; }

        .cart-wrapper { background: #fff; height: 100%; display: flex; flex-direction: column; }
        .cart-body { flex: 1 1 auto; overflow-y: auto; padding: 20px; }
        #cartContent { max-width: 800px; margin: 0 auto; }
        
        .cart-item-group { border-bottom: 1px solid #eee; padding: 15px; display: flex; gap: 15px; align-items: flex-start; cursor: pointer; transition: background 0.2s; border-radius: 8px; }
        .cart-item-group:hover { background: #f0f8ff; }
        .edit-hint { font-size:11px; color:#007bff; font-weight:normal; background:#eef7ff; padding:2px 6px; border-radius:10px; margin-left:5px; border:1px solid #cce5ff;}
        .cart-thumb { width: 80px; height: 80px; object-fit: contain; background: #f9f9f9; border: 1px solid #eee; }
        .cart-detail-row { display: flex; justify-content: space-between; font-size: 13px; color: #555; margin-bottom: 4px; border-bottom: 1px dashed #f5f5f5; }
        
        .order-form { max-width: 600px; margin: 20px auto; display:none; }
        .form-row { margin-bottom: 15px; }
        .form-row label { display: block; font-weight: bold; margin-bottom: 5px; font-size: 14px; }
        .form-row input, .form-row select, .form-row textarea { width: 100%; padding: 10px; border: 1px solid #ddd; border-radius: 4px; font-size: 16px; font-family: inherit; }
        .form-row textarea { resize: vertical; }
        .form-row input.error { border-color: #dc3545; background-color: #fff8f8; }
        .validation-msg { font-size: 12px; color: #dc3545; margin-top: 4px; display: none; }
        .required-mark { color: red; margin-left: 3px; }
        
        .cart-footer { flex: 0 0 auto; background: #fff; border-top: 1px solid #ddd; padding: 15px; box-shadow: 0 -2px 10px rgba(0,0,0,0.05); }
        .cart-footer-inner { max-width: 800px; margin: 0 auto; }

        .info-body { flex: 1 1 auto; overflow-y: auto; padding: 30px 20px; background: #fff; }
        .info-content { max-width: 800px; margin: 0 auto; line-height: 1.8; color: #444; font-size: 15px; }
        .info-content h3 { font-size: 18px; border-bottom: 1px solid #ddd; padding-bottom: 8px; margin: 20px 0 10px; color: #222; }
        .info-content p { margin-bottom: 15px; }

        @media (min-width: 900px) {
            .middle-area { flex-direction: row; }
            .side-menu { position: relative; width: 280px; height: 100%; transform: none !important; z-index: 10; border-right: 1px solid #ddd; box-shadow: none; }
            /* デスクトップはフッターが横並びで重ならないので、モバイル用の大きな下余白は不要 */
            #folderListContainer { padding-bottom: 20px; }
            .side-menu-overlay { display: none !important; }
            .menu-btn { display: none; }
            .modal-content-area { flex-direction: row; }
            .modal-left-pane { flex: 1; border-right: 1px solid #ddd; min-width: 0; }
            .modal-filename-bar { border-top: 1px solid #ddd; }
            .modal-right-pane { width: 360px; flex: none; height: 100%; max-height: none; border-left: 1px solid #ddd; }
        }

        @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
        
        .product-row { display: flex; align-items: center; justify-content: space-between; background: #f9f9f9; padding: 10px; border-radius: 6px; border: 1px solid #eee; margin-bottom: 5px; }
        .p-name { font-weight: bold; font-size: 15px; }
        .p-desc { font-size: 11px; color: #888; margin-top: 2px; }
        .p-price { font-size: 14px; color: #333; }
        .counter-box { display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid #ccc; border-radius: 20px; padding: 2px 5px; }
        .c-btn { width: 30px; height: 30px; display: flex; align-items: center; justify-content: center; font-size: 20px; color: #007bff; cursor: pointer; user-select: none; }
        .c-val { width: 20px; text-align: center; font-weight: bold; }
        .c-val.active { color: #007bff; }
        details.product-folder { margin-bottom: 10px; border: 1px solid #ddd; border-radius: 6px; overflow: hidden; }
        details.product-folder summary { background: #eef7ff; padding: 10px 15px; cursor: pointer; font-weight: bold; color: #0056b3; list-style: none; outline: none; }
        .folder-content { padding: 10px; background: #fff; }

        /* ===== フォトブック（セット商品）===== */
        /* カードの📕ボタン（左下）。♥は右下(.thumb-fav-btn)のまま＝二重表示 */
        .thumb-book-btn { position: absolute; bottom: 5px; left: 5px; width: 32px; height: 32px; background: rgba(0,0,0,0.3); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 16px; transition: 0.2s; z-index: 2; }
        .thumb-book-btn.active { background: #fb8c00; }
        .photo-card.has-book { border-color: #fb8c00; }
        /* ♥と📕の両方が付いた写真は、枠を左=黄／右=ピンクの二色で表示 */
        .photo-card.has-fav.has-book {
            border-color: transparent;
            background-image: linear-gradient(#fff, #fff), linear-gradient(90deg, #fb8c00 0 50%, #ff4081 50% 100%);
            background-origin: border-box;
            -webkit-background-clip: padding-box, border-box;
            background-clip: padding-box, border-box;
        }
        /* 拡大画面の📕（左上）。♥は右上(.modal-fav-float) */
        .modal-book-float { position: absolute; top: 16px; left: 16px; z-index: 20; width: 52px; height: 52px; border-radius: 50%; background: rgba(0,0,0,0.45); color: rgba(255,255,255,0.9); display: flex; align-items: center; justify-content: center; font-size: 26px; line-height: 1; cursor: pointer; transition: transform 0.15s, background 0.2s; -webkit-tap-highlight-color: transparent; user-select: none; }
        .modal-book-float:hover { transform: scale(1.12); background: rgba(0,0,0,0.6); }
        .modal-book-float:active { transform: scale(0.95); }
        .modal-book-float.active { background: #fb8c00; color: #fff; }

        /* ===== ゲネプロ・リハーサル表示 ===== */
        /* サムネの番号横の赤い「GP」（.file-name-disp は 13px → 1pt大きい14px） */
        .gp-badge { color:#e53935; font-weight:bold; font-size:14px; margin-right:5px; letter-spacing:0.5px; }
        /* 拡大画面 上中央の赤バナー。左右の角ボタン(52px+16px)に被らないよう max-width と中央固定 */
        .modal-gp-banner {
            position:absolute; top:16px; left:50%; transform:translateX(-50%);
            z-index:19; max-width:calc(100% - 150px);
            padding:8px 20px; border-radius:22px;
            background:rgba(0,0,0,0.55); color:#ff5252;
            font-weight:bold; font-size:20px; text-align:center;
            white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
            pointer-events:none; user-select:none;
        }
        @media (max-width: 600px) { .modal-gp-banner { font-size:17px; padding:6px 14px; max-width:calc(100% - 140px); } }
        /* フォトブックボックス（下部パネル：上に残数、下にサイズ別ボタン） */
        #bookBox { display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 5500; background: #fff; border-top: 2px solid #fb8c00; box-shadow: 0 -2px 12px rgba(0,0,0,0.2); padding: 10px 14px; flex-direction: column; gap: 8px; }
        .book-box-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
        #bookBoxInfo { line-height: 1.5; }
        .book-box-close { background: #eee; border: none; border-radius: 50%; width: 30px; height: 30px; font-size: 18px; cursor: pointer; flex-shrink: 0; }
        #bookBoxActions { display: flex; gap: 8px; flex-wrap: wrap; }
        .book-box-add { flex: 1; min-width: 140px; padding: 10px; border: none; border-radius: 8px; background: #fb8c00; color: #fff; font-weight: bold; cursor: pointer; line-height: 1.3; }
        .book-box-add.secondary { background: #fff; color: #e65100; border: 2px solid #fb8c00; }
        /* ページ順 並べ替え（見開き2列） */
        .book-order-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
        .book-order-cell { border: 1px solid #eee; border-radius: 6px; padding: 6px; text-align: center; background: #fafafa; }
        .book-order-cell.blank { background: transparent; border: 1px dashed #ddd; }
        .book-order-cell img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; border-radius: 4px; display: block; background: #fff; padding: 5px; box-sizing: border-box; }
        .book-order-pageno { font-size: 15px; font-weight: bold; margin: 5px 0 2px; color: #333; }
        .book-order-fname { font-size: 10px; font-family: monospace; color: #888; word-break: break-all; line-height: 1.15; margin-bottom: 4px; }
        .book-order-btns { display: flex; gap: 4px; justify-content: center; }
        .book-order-btns button { flex: 1; padding: 7px 2px; border: 1px solid #fb8c00; background: #fff; color: #e65100; border-radius: 4px; font-size: 12px; font-weight: bold; cursor: pointer; -webkit-tap-highlight-color: rgba(0,0,0,0.1); }
        .book-order-btns button:disabled { opacity: 0.3; cursor: not-allowed; }
        #bookToast { position: fixed; bottom: 130px; left: 50%; transform: translateX(-50%); background: rgba(0,0,0,0.85); color: #fff; padding: 10px 18px; border-radius: 20px; font-size: 14px; z-index: 9500; opacity: 0; pointer-events: none; transition: opacity 0.3s; max-width: 86%; text-align: center; }
        #bookToast.show { opacity: 1; }
        .book-edit-btn { background: #fb8c00; color: #fff; border: none; border-radius: 4px; padding: 6px 12px; cursor: pointer; font-size: 12px; font-weight: bold; white-space: nowrap; flex-shrink: 0; -webkit-tap-highlight-color: rgba(0,0,0,0.1); }
        .book-cart-group { display: block; border-left: 4px solid #fb8c00; padding: 15px; -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; }
        .book-cart-thumbs { display: flex; flex-wrap: wrap; gap: 4px; }
        .book-cart-thumb { width: 44px; height: 44px; object-fit: cover; border-radius: 4px; }
        .book-copies button { width: 28px; height: 28px; border: 1px solid #ccc; background: #f5f5f5; border-radius: 4px; font-weight: bold; cursor: pointer; }
        .book-copies span { display: inline-block; min-width: 24px; text-align: center; font-weight: bold; }
        .book-remove-btn { background: #dc3545; color: #fff; border: none; border-radius: 4px; width: 30px; height: 30px; cursor: pointer; font-size: 16px; flex-shrink: 0; -webkit-tap-highlight-color: rgba(0,0,0,0.1); }