.folder-tree{background:var(--bg-secondary);flex-direction:column;height:100%;display:flex}.folder-tree-header{border-bottom:1px solid var(--border-color);background:var(--bg-primary);justify-content:space-between;align-items:center;padding:10px;display:flex}.folder-tree-header h3{color:var(--text-primary);margin:0;font-size:16px}.refresh-btn{cursor:pointer;color:var(--text-primary);background:0 0;border:none;border-radius:4px;padding:4px 8px;font-size:18px;transition:background .2s,color .2s}.refresh-btn:hover{background:var(--bg-secondary);color:var(--accent-color)}.folder-tree-item{-webkit-user-select:none;user-select:none}.folder-item{cursor:pointer;align-items:center;padding:6px 8px;display:flex;position:relative}.folder-item:hover{background:var(--bg-tertiary)}.folder-item.selected{background:var(--accent-border)}.folder-item.keyboard-selected{outline:2px solid var(--accent-color);outline-offset:-2px}.folder-toggle{cursor:pointer;width:20px;font-size:10px;display:inline-block}.folder-name{color:var(--text-primary);flex:1}.folder-children{padding-left:20px}.folder-item input{border:1px solid var(--border-color);background:var(--bg-primary);color:var(--text-primary);border-radius:2px;flex:1;padding:2px 4px}.context-menu{background:var(--bg-primary);border:1px solid var(--border-color);box-shadow:0 2px 8px var(--shadow);z-index:1000;border-radius:4px;flex-direction:column;min-width:120px;display:flex;position:absolute;top:100%;right:5px}.context-menu button{text-align:left;cursor:pointer;border:none;border-bottom:1px solid var(--border-color);color:var(--text-primary);background:0 0;padding:8px 12px}.context-menu button:last-child{border-bottom:none}.context-menu button:hover:not(:disabled){background:var(--bg-secondary)}.context-menu button:disabled{opacity:.5;cursor:not-allowed}.folder-item.busy{opacity:.6;pointer-events:none}.folder-creating{color:var(--text-secondary);font-size:11px;font-style:italic}.move-picker-item{border:none;border-bottom:1px solid var(--border-color);text-align:left;cursor:pointer;font-size:var(--text-sm);color:var(--text-primary);transition:background var(--transition-fast);background:0 0;align-items:center;gap:6px;padding:7px 8px;display:flex}.move-modal-error{font-size:var(--text-sm);color:var(--error-color);margin:0}.move-modal-cancel{border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;font-size:var(--text-sm);transition:background var(--transition-fast);background:0 0;padding:6px 14px}.move-modal-confirm{border-radius:var(--radius-md);background:var(--accent-color);color:var(--accent-text);cursor:pointer;font-size:var(--text-sm);transition:background var(--transition-fast);border:none;padding:6px 14px;font-weight:500}.page-list{background:var(--bg-secondary);flex-direction:column;height:100%;display:flex}.page-list-header{border-bottom:1px solid var(--border-color);background:var(--bg-primary);justify-content:space-between;align-items:center;padding:10px;display:flex}.page-list-header h4{color:var(--text-primary);margin:0;font-size:16px}.page-list-controls{align-items:center;gap:8px;display:flex}.sort-controls{align-items:center;gap:2px;display:flex}.sort-controls select{border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;border-radius:4px 0 0 4px;outline:none;padding:4px 6px;font-size:11px}.sort-controls select:hover{border-color:var(--border-hover)}.sort-controls select:focus{border-color:var(--accent-color)}.sort-direction-btn{border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;border-left:none;border-radius:0 4px 4px 0;padding:4px 6px;font-size:11px;transition:background .2s,color .2s}.sort-direction-btn:hover{background:var(--bg-tertiary);color:var(--accent-color)}.new-page-btn{background:var(--accent-color);color:var(--accent-text);cursor:pointer;border:none;border-radius:4px;min-width:28px;padding:4px 8px;font-size:14px;font-weight:600;transition:background .2s}.new-page-btn:hover:not(:disabled){background:var(--accent-bg);color:var(--accent-color);outline:1px solid var(--accent-color)}.new-page-btn:disabled{background:var(--bg-tertiary);color:var(--text-secondary);cursor:not-allowed}.page-items{flex-direction:column;flex:1;gap:4px;padding:0 10px 10px;display:flex;overflow-y:auto}.page-item{cursor:pointer;border-radius:4px;align-items:center;padding:6px 8px;transition:background .2s;display:flex;position:relative}.page-item:hover{background:var(--bg-tertiary)}.page-item.selected{background:var(--accent-border)}.page-item.keyboard-selected{outline:2px solid var(--accent-color);outline-offset:-2px}.page-icon{margin-right:8px}.page-name{text-overflow:ellipsis;white-space:nowrap;color:var(--text-primary);flex:1;font-size:13px;overflow:hidden}.page-rename-input{border:1px solid var(--accent-color);border-radius:2px;outline:none;flex:1;padding:2px 4px;font-size:13px}.page-context-menu{background:var(--bg-primary);border:1px solid var(--border-color);box-shadow:0 2px 8px var(--shadow);z-index:1000;border-radius:4px;flex-direction:column;min-width:100px;margin-top:2px;display:flex;position:absolute;top:100%;right:5px}.page-context-menu button{text-align:left;cursor:pointer;border:none;border-bottom:1px solid var(--border-color);color:var(--text-primary);background:0 0;padding:6px 12px;font-size:13px}.page-context-menu button:last-child{border-bottom:none}.page-context-menu button:hover{background:var(--bg-secondary)}.delete-btn{color:#999;cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:20px;line-height:1}.delete-btn:hover{color:#f44336}.loading,.empty-state{text-align:center;color:#999;padding:20px;font-size:13px}.loading-state,.empty-state{color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:30px 20px;font-size:13px;display:flex}.empty-icon,.error-icon{font-size:32px}.empty-state button{background:var(--accent-color);color:var(--accent-text);cursor:pointer;border:none;border-radius:4px;margin-top:8px;padding:8px 16px;font-size:13px}.empty-state button:hover:not(:disabled){background:var(--accent-hover)}.empty-state button:disabled{cursor:not-allowed;background:#ccc}.error-state{color:#e74c3c;cursor:pointer;background:#e74c3c1a;border-radius:4px;flex-direction:column;justify-content:center;align-items:center;gap:8px;margin:10px 0;padding:20px;font-size:13px;display:flex}.error-state:hover{background:#e74c3c26}.loading-spinner{border:3px solid var(--border-color);border-top-color:var(--accent-color);border-radius:50%;width:24px;height:24px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.page-item.deleting{opacity:.5;pointer-events:none}.page-list-header button.loading{opacity:.7}.modal-loading{color:var(--text-secondary);flex-direction:column;align-items:center;gap:16px;padding:40px 20px;display:flex}.modal-overlay{z-index:1000;background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--bg-primary,white);border-radius:8px;min-width:400px;max-width:500px;max-height:80vh;padding:24px;overflow-y:auto;box-shadow:0 4px 20px #0000004d}.modal h3{color:var(--text-primary,#333);margin:0 0 12px}.modal p{color:var(--text-secondary,#666);margin:0 0 16px;font-size:14px}.folder-list{flex-direction:column;gap:8px;max-height:400px;margin-bottom:16px;display:flex;overflow:hidden auto}.folder-option{text-align:left;background:var(--bg-secondary,#f5f5f5);border:1px solid var(--border-color,#ddd);cursor:pointer;color:var(--text-primary,#333);white-space:nowrap;text-overflow:ellipsis;border-radius:4px;max-width:100%;padding:12px;font-size:14px;transition:all .2s;overflow:hidden}.folder-option:hover{background:var(--bg-tertiary,#e8e8e8);border-color:var(--accent-color)}.cancel-btn{background:var(--bg-secondary,#f5f5f5);border:1px solid var(--border-color,#ddd);cursor:pointer;color:var(--text-primary,#333);border-radius:4px;padding:10px 20px;font-size:14px}@media (width<=600px){.page-list-header{flex-wrap:wrap;gap:8px;padding:8px}.page-list-header h4{font-size:14px}.page-list-controls{gap:6px}.sort-controls select,.sort-direction-btn{padding:6px 8px;font-size:12px}.new-page-btn{min-width:32px;padding:6px 10px;font-size:16px}.page-item{padding:10px 12px}}@media (hover:none) and (pointer:coarse){.sort-controls select,.sort-direction-btn,.new-page-btn{min-height:36px}.page-item{min-height:44px}.page-context-menu button{min-height:44px;padding:12px 16px}}.move-modal-overlay{z-index:2000;background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.move-modal{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-lg,8px);width:320px;max-width:90vw;box-shadow:0 8px 32px var(--shadow-lg,#0000004d);flex-direction:column;gap:12px;padding:20px;display:flex}.move-modal-title{font-size:var(--text-base,16px);color:var(--text-primary);margin:0;font-weight:600}.move-modal-subtitle{font-size:var(--text-sm,14px);color:var(--text-secondary);margin:0}.move-picker{border:1px solid var(--border-color);border-radius:var(--radius-md,4px);flex-direction:column;max-height:240px;display:flex;overflow-y:auto}.move-picker-item{border:none;border-bottom:1px solid var(--border-color);text-align:left;cursor:pointer;font-size:var(--text-sm,14px);color:var(--text-primary);background:0 0;align-items:center;gap:6px;padding:7px 8px;transition:background .15s;display:flex}.move-picker-item:last-child{border-bottom:none}.move-picker-item:hover{background:var(--bg-hover,var(--bg-tertiary))}.move-picker-item.selected{background:var(--accent-bg,#3b82f61a);color:var(--accent-color);font-weight:500}.move-picker-root{color:var(--text-secondary);font-style:italic}.move-picker-root.selected{color:var(--accent-color)}.move-modal-actions{justify-content:flex-end;gap:8px;display:flex}.move-modal-cancel{border:1px solid var(--border-color);border-radius:var(--radius-md,4px);color:var(--text-secondary);cursor:pointer;font-size:var(--text-sm,14px);background:0 0;padding:6px 14px;transition:background .15s}.move-modal-cancel:hover:not(:disabled){background:var(--bg-hover,var(--bg-tertiary))}.move-modal-confirm{border-radius:var(--radius-md,4px);background:var(--accent-color);color:var(--accent-text);cursor:pointer;font-size:var(--text-sm,14px);border:none;padding:6px 14px;font-weight:500;transition:background .15s}.move-modal-confirm:hover:not(:disabled){background:var(--accent-hover)}.move-modal-cancel:disabled,.move-modal-confirm:disabled{opacity:.5;cursor:not-allowed}.version-history-overlay{z-index:1000;background:#00000080;justify-content:center;align-items:center;animation:.2s ease-in fadeIn;display:flex;position:fixed;inset:0}.version-history-modal{background:var(--bg-primary);border-radius:8px;flex-direction:column;width:90%;max-width:1200px;height:80vh;animation:.3s ease-out slideUp;display:flex;box-shadow:0 4px 20px #0000004d}.version-history-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:1.5rem;display:flex}.version-history-header h2{color:var(--text-primary);margin:0;font-size:1.5rem}.close-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;width:32px;height:32px;padding:0;font-size:2rem;transition:background .2s;display:flex}.close-btn:hover{background:var(--bg-secondary);color:var(--text-primary)}.version-history-content{flex:1;display:flex;overflow:hidden}.version-timeline{border-right:1px solid var(--border-color);background:var(--bg-secondary);flex-direction:column;width:350px;display:flex}.version-timeline h3{border-bottom:1px solid var(--border-color);color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin:0;padding:1rem 1.5rem;font-size:1rem}.commit-list{flex:1;padding:.5rem;overflow-y:auto}.commit-item{background:var(--bg-primary);border:1px solid var(--border-color);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:6px;margin-bottom:.5rem;padding:1rem;transition:all .2s}.commit-item:hover{border-color:var(--accent-color);transform:translate(4px);box-shadow:0 2px 8px #0000001a}.commit-item.selected{border-color:var(--accent-color);background:var(--bg-hover);box-shadow:0 2px 8px var(--shadow)}.commit-header{justify-content:space-between;align-items:center;margin-bottom:.5rem;display:flex}.commit-badge{background:var(--accent-color);color:var(--accent-text);border-radius:4px;padding:.25rem .5rem;font-size:.75rem;font-weight:600}.commit-date{color:var(--text-secondary);font-size:.75rem}.commit-message{color:var(--text-primary);margin-bottom:.25rem;font-size:.9rem;font-weight:500}.commit-author{color:var(--text-secondary);margin-bottom:.75rem;font-size:.8rem}.commit-actions{gap:.5rem;display:flex}.btn-small{background:var(--bg-secondary);border:1px solid var(--border-color);cursor:pointer;color:var(--text-primary);border-radius:4px;padding:.25rem .75rem;font-size:.8rem;transition:all .2s}.btn-small:hover{background:var(--bg-hover);border-color:var(--accent-color)}.btn-restore{background:var(--accent-color);color:var(--accent-text);border-color:var(--accent-color)}.btn-restore:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.version-viewer{flex:1;padding:1.5rem;overflow-y:auto}.empty-state{height:100%;color:var(--text-secondary);justify-content:center;align-items:center;font-size:1.1rem;display:flex}.version-content{flex-direction:column;height:100%;display:flex}.version-info{border-bottom:1px solid var(--border-color);margin-bottom:1.5rem;padding-bottom:1rem}.version-info h3{color:var(--text-primary);margin:0 0 .5rem}.version-meta{color:var(--text-secondary);margin:0;font-size:.9rem}.version-text{background:var(--bg-secondary);border:1px solid var(--border-color);white-space:pre-wrap;word-wrap:break-word;color:var(--text-primary);border-radius:6px;flex:1;padding:1.5rem;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:.9rem;line-height:1.6;overflow:auto}.compare-view{flex-direction:column;height:100%;display:flex}.compare-header{margin-bottom:1rem}.compare-panels{flex:1;grid-template-columns:1fr auto 1fr;gap:1rem;display:grid;overflow:hidden}.compare-panel{flex-direction:column;display:flex;overflow:hidden}.compare-panel h4{color:var(--text-primary);margin:0 0 .5rem;font-size:1rem}.compare-panel .version-text{flex:1}.compare-divider{background:var(--border-color);width:1px}.loading,.no-history{text-align:center;color:var(--text-secondary);padding:1.5rem}.error-message{color:#fff;background:#dc3545;border-bottom:1px solid #0000001a;margin:0;padding:1rem 1.5rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.commit-list::-webkit-scrollbar{width:8px}.version-viewer::-webkit-scrollbar{width:8px}.version-text::-webkit-scrollbar{width:8px}.commit-list::-webkit-scrollbar-track{background:var(--bg-secondary)}.version-viewer::-webkit-scrollbar-track{background:var(--bg-secondary)}.version-text::-webkit-scrollbar-track{background:var(--bg-secondary)}.commit-list::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.version-viewer::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.version-text::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.commit-list::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.version-viewer::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.version-text::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.diff-view{flex-direction:column;height:100%;font-family:Monaco,Menlo,Consolas,monospace;font-size:13px;display:flex}.diff-header-info{background:var(--bg-secondary);border-radius:4px;align-items:center;gap:1rem;margin-bottom:.5rem;padding:.75rem;font-size:.9rem;display:flex}.diff-old-label{color:#d73a49;font-weight:500}.diff-new-label{color:#28a745;font-weight:500}.diff-arrow{color:var(--text-secondary);font-size:1.2rem}.diff-content{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:4px;flex:1;padding:0;overflow-y:auto}.diff-line-added,.diff-line-removed,.diff-line-unchanged{white-space:pre-wrap;word-break:break-word;align-items:flex-start;margin:0;padding:0;line-height:1.5;display:flex}.diff-line-added{background-color:#28a74526;border-left:3px solid #28a745}.diff-line-removed{background-color:#d73a4926;border-left:3px solid #d73a49}.diff-line-unchanged{background-color:#0000;border-left:3px solid #0000}.diff-marker{text-align:center;-webkit-user-select:none;user-select:none;flex-shrink:0;width:30px;padding:0 8px;font-weight:700}.diff-line-added .diff-marker{color:#28a745}.diff-line-removed .diff-marker{color:#d73a49}.diff-line-unchanged .diff-marker{color:var(--text-secondary);opacity:.3}.diff-text{flex:1;min-height:1.5em;padding:0 8px}[data-theme=dark] .diff-line-added{background-color:#28a74540}[data-theme=dark] .diff-line-removed{background-color:#d73a4940}[data-theme=dark] .diff-old-label{color:#f97583}[data-theme=dark] .diff-new-label{color:#34d058}.attachments-modal{flex-direction:column;width:600px;max-width:90vw;max-height:80vh;display:flex}.modal-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:20px;display:flex}.modal-header h3{margin:0;font-size:18px}.modal-close{cursor:pointer;color:var(--text-secondary);background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;width:32px;height:32px;padding:0;font-size:24px;display:flex}.modal-close:hover{background:var(--bg-hover);color:var(--text-primary)}.modal-body{flex:1;padding:20px;overflow-y:auto}.upload-area{border:2px dashed var(--border-color);text-align:center;cursor:pointer;background:var(--bg-secondary);border-radius:8px;margin-bottom:24px;padding:40px 20px;transition:all .2s}.upload-area:hover{border-color:var(--accent-color);background:var(--bg-tertiary)}.upload-area.drag-active{border-color:var(--accent-color);background:var(--accent-bg);border-style:solid}.upload-icon{margin-bottom:12px;font-size:48px}.upload-area p{color:var(--text-primary);margin:8px 0}.upload-hint{color:var(--text-secondary);font-size:12px}.upload-status{flex-direction:column;align-items:center;gap:12px;display:flex}.attachments-list{min-height:200px}.attachments-list ul{margin:0;padding:0;list-style:none}.attachment-item{border:1px solid var(--border-color);background:var(--bg-primary);border-radius:6px;align-items:center;gap:12px;margin-bottom:8px;padding:12px;transition:all .2s;display:flex}.attachment-item:hover{background:var(--bg-hover);border-color:var(--border-hover)}.file-icon{flex-shrink:0;font-size:24px}.file-info{flex:1;min-width:0}.file-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-weight:500;overflow:hidden}.file-meta{color:var(--text-secondary);margin-top:2px;font-size:12px}.file-actions{align-items:center;gap:8px;display:flex}.btn-insert{background:var(--accent-color);color:var(--accent-text);cursor:pointer;border:none;border-radius:4px;padding:6px 12px;font-size:13px;font-weight:500;transition:all .2s}.btn-insert:hover{opacity:.9;transform:translateY(-1px)}.btn-download,.btn-delete{border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:4px;justify-content:center;align-items:center;width:32px;height:32px;font-size:16px;text-decoration:none;transition:all .2s;display:flex}.btn-download:hover{background:var(--bg-tertiary);border-color:var(--accent-color);color:var(--text-primary)}.btn-delete:hover{border-color:var(--error-color);color:var(--error-color);background:#dc26261f}.spinner{border:3px solid var(--bg-tertiary);border-top:3px solid var(--accent-color);border-radius:50%;width:24px;height:24px;animation:.8s linear infinite spin}.loading-state,.empty-state{color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:40px 20px;display:flex}.editor{background:var(--pane-center-bg);flex-direction:column;height:100%;display:flex}.editor.empty{background:var(--bg-tertiary);justify-content:center;align-items:center}.editor.empty .empty-state{text-align:center;color:var(--text-secondary);flex-direction:column;align-items:center;gap:12px;display:flex}.editor.empty .empty-icon,.editor.loading .loading-spinner,.editor.error .error-icon{font-size:48px}.editor.loading,.editor.error{background:var(--bg-tertiary);justify-content:center;align-items:center}.editor .loading-state,.editor .error-state{color:var(--text-secondary);flex-direction:column;align-items:center;gap:16px;display:flex}.editor .error-state{color:#e74c3c;cursor:pointer;border-radius:8px;padding:20px}.editor .error-state:hover{background:#e74c3c1a}.editor .loading-spinner{border:3px solid var(--border-color);border-top-color:var(--accent-color);border-radius:50%;width:32px;height:32px;animation:.8s linear infinite spin}.editor-header{padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--border-color);background:var(--bg-secondary);justify-content:space-between;align-items:flex-start;gap:var(--space-3);flex-wrap:wrap;min-height:fit-content;display:flex}.editor-title-row{align-items:center;gap:var(--space-2);flex-shrink:0;display:flex}.editor-header 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