.folder-tree{height:100%;display:flex;flex-direction:column;background:var(--bg-secondary)}.folder-tree-header{display:flex;justify-content:space-between;align-items:center;padding:10px;border-bottom:1px solid var(--border-color);background:var(--bg-primary)}.folder-tree-header h3{margin:0;font-size:16px;color:var(--text-primary)}.refresh-btn{background:none;border:none;font-size:18px;cursor:pointer;padding:4px 8px;color:var(--text-primary);border-radius:4px;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{display:flex;align-items:center;padding:6px 8px;cursor:pointer;position:relative}.folder-item:hover{background:var(--bg-tertiary)}.folder-item.selected{background:#667eea33}.folder-item.keyboard-selected{outline:2px solid var(--accent-color);outline-offset:-2px}.folder-toggle{width:20px;display:inline-block;cursor:pointer;font-size:10px}.folder-name{flex:1;color:var(--text-primary)}.folder-children{padding-left:20px}.folder-item input{flex:1;padding:2px 4px;border:1px solid var(--border-color);border-radius:2px;background:var(--bg-primary);color:var(--text-primary)}.context-menu{position:absolute;right:5px;top:100%;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:4px;box-shadow:0 2px 8px var(--shadow);z-index:1000;display:flex;flex-direction:column;min-width:120px}.context-menu button{padding:8px 12px;border:none;background:none;text-align:left;cursor:pointer;border-bottom:1px solid var(--border-color);color:var(--text-primary)}.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{font-size:11px;color:var(--text-secondary);font-style:italic}.page-list{background:var(--bg-secondary);height:100%;display:flex;flex-direction:column}.page-list-header{display:flex;justify-content:space-between;align-items:center;padding:10px;border-bottom:1px solid var(--border-color);background:var(--bg-primary)}.page-list-header h4{margin:0;font-size:16px;color:var(--text-primary)}.page-list-controls{display:flex;align-items:center;gap:8px}.sort-controls{display:flex;align-items:center;gap:2px}.sort-controls select{padding:4px 6px;font-size:11px;border:1px solid var(--border-color);border-radius:4px 0 0 4px;background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;outline:none}.sort-controls select:hover{border-color:var(--border-hover)}.sort-controls select:focus{border-color:var(--accent-color)}.sort-direction-btn{padding:4px 6px;font-size:11px;border:1px solid var(--border-color);border-left:none;border-radius:0 4px 4px 0;background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;transition:background .2s,color .2s}.sort-direction-btn:hover{background:var(--bg-tertiary);color:var(--accent-color)}.new-page-btn{padding:4px 8px;font-size:14px;font-weight:600;background:var(--accent-color);color:#fff;border:none;border-radius:4px;cursor:pointer;transition:background .2s;min-width:28px}.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{display:flex;flex-direction:column;gap:4px;padding:0 10px 10px;flex:1;overflow-y:auto}.page-item{display:flex;align-items:center;padding:6px 8px;cursor:pointer;transition:background .2s;position:relative;border-radius:4px}.page-item:hover{background:var(--bg-tertiary)}.page-item.selected{background:#667eea33}.page-item.keyboard-selected{outline:2px solid var(--accent-color);outline-offset:-2px}.page-icon{margin-right:8px}.page-name{flex:1;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-primary)}.page-rename-input{flex:1;padding:2px 4px;border:1px solid #007bff;border-radius:2px;font-size:13px;outline:none}.page-context-menu{position:absolute;right:5px;top:100%;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:4px;box-shadow:0 2px 8px var(--shadow);z-index:1000;display:flex;flex-direction:column;min-width:100px;margin-top:2px}.page-context-menu button{padding:6px 12px;border:none;background:none;text-align:left;cursor:pointer;font-size:13px;border-bottom:1px solid var(--border-color);color:var(--text-primary)}.page-context-menu button:last-child{border-bottom:none}.page-context-menu button:hover{background:var(--bg-secondary)}.delete-btn{background:none;border:none;color:#999;font-size:20px;cursor:pointer;padding:0 4px;line-height:1}.delete-btn:hover{color:#f44336}.loading,.empty-state{text-align:center;padding:20px;color:#999;font-size:13px}.loading-state,.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:30px 20px;color:var(--text-secondary);font-size:13px;gap:12px}.empty-icon,.error-icon{font-size:32px}.empty-state button{margin-top:8px;padding:8px 16px;background:#667eea;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:13px}.empty-state button:hover:not(:disabled){background:#5a6fd6}.empty-state button:disabled{background:#ccc;cursor:not-allowed}.error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;color:#e74c3c;font-size:13px;gap:8px;cursor:pointer;background:#e74c3c1a;border-radius:4px;margin:10px 0}.error-state:hover{background:#e74c3c26}.loading-spinner{width:24px;height:24px;border:3px solid var(--border-color);border-top-color:#667eea;border-radius:50%;animation:spin .8s linear infinite}.page-item.deleting{opacity:.5;pointer-events:none}.page-list-header button.loading{opacity:.7}.modal-loading{display:flex;flex-direction:column;align-items:center;padding:40px 20px;gap:16px;color:var(--text-secondary)}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--bg-primary, white);padding:24px;border-radius:8px;min-width:400px;max-width:500px;max-height:80vh;overflow-y:auto;box-shadow:0 4px 20px #0000004d}.modal h3{margin:0 0 12px;color:var(--text-primary, #333)}.modal p{margin:0 0 16px;color:var(--text-secondary, #666);font-size:14px}.folder-list{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;max-height:400px;overflow-y:auto}.folder-option{padding:12px;text-align:left;background:var(--bg-secondary, #f5f5f5);border:1px solid var(--border-color, #ddd);border-radius:4px;cursor:pointer;font-size:14px;transition:all .2s;color:var(--text-primary, #333)}.folder-option:hover{background:var(--bg-tertiary, #e8e8e8);border-color:#667eea;transform:translate(4px)}.cancel-btn{padding:10px 20px;background:var(--bg-secondary, #f5f5f5);border:1px solid var(--border-color, #ddd);border-radius:4px;cursor:pointer;font-size:14px;color:var(--text-primary, #333)}.cancel-btn:hover{background:var(--bg-tertiary, #e8e8e8)}@media(max-width:600px){.page-list-header{padding:8px;flex-wrap:wrap;gap: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{padding:6px 10px;font-size:16px;min-width:32px}.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{padding:12px 16px;min-height:44px}}.version-history-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease-in}.version-history-modal{background:var(--bg-primary);border-radius:8px;width:90%;max-width:1200px;height:80vh;display:flex;flex-direction:column;box-shadow:0 4px 20px #0000004d;animation:slideUp .3s ease-out}.version-history-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;border-bottom:1px solid var(--border-color)}.version-history-header h2{margin:0;font-size:1.5rem;color:var(--text-primary)}.close-btn{background:none;border:none;font-size:2rem;color:var(--text-secondary);cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background .2s}.close-btn:hover{background:var(--bg-secondary);color:var(--text-primary)}.version-history-content{display:flex;flex:1;overflow:hidden}.version-timeline{width:350px;border-right:1px solid var(--border-color);display:flex;flex-direction:column;background:var(--bg-secondary)}.version-timeline h3{margin:0;padding:1rem 1.5rem;border-bottom:1px solid var(--border-color);font-size:1rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.commit-list{flex:1;overflow-y:auto;padding:.5rem}.commit-item{padding:1rem;margin-bottom:.5rem;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:6px;cursor:pointer;transition:all .2s;-webkit-user-select:none;user-select:none}.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 #007bff26}.commit-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.commit-badge{background:var(--accent-color);color:#fff;padding:.25rem .5rem;border-radius:4px;font-size:.75rem;font-weight:600}.commit-date{font-size:.75rem;color:var(--text-secondary)}.commit-message{font-weight:500;color:var(--text-primary);margin-bottom:.25rem;font-size:.9rem}.commit-author{font-size:.8rem;color:var(--text-secondary);margin-bottom:.75rem}.commit-actions{display:flex;gap:.5rem}.btn-small{padding:.25rem .75rem;font-size:.8rem;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:4px;cursor:pointer;color:var(--text-primary);transition:all .2s}.btn-small:hover{background:var(--bg-hover);border-color:var(--accent-color)}.btn-restore{background:var(--accent-color);color:#fff;border-color:var(--accent-color)}.btn-restore:hover{background:#0056b3;border-color:#0056b3}.version-viewer{flex:1;overflow-y:auto;padding:1.5rem}.empty-state{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-secondary);font-size:1.1rem}.version-content{height:100%;display:flex;flex-direction:column}.version-info{margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.version-info h3{margin:0 0 .5rem;color:var(--text-primary)}.version-meta{margin:0;color:var(--text-secondary);font-size:.9rem}.version-text{flex:1;background:var(--bg-secondary);padding:1.5rem;border-radius:6px;border:1px solid var(--border-color);overflow:auto;white-space:pre-wrap;word-wrap:break-word;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:.9rem;line-height:1.6;color:var(--text-primary)}.compare-view{height:100%;display:flex;flex-direction:column}.compare-header{margin-bottom:1rem}.compare-panels{display:grid;grid-template-columns:1fr auto 1fr;gap:1rem;flex:1;overflow:hidden}.compare-panel{display:flex;flex-direction:column;overflow:hidden}.compare-panel h4{margin:0 0 .5rem;color:var(--text-primary);font-size:1rem}.compare-panel .version-text{flex:1}.compare-divider{width:1px;background:var(--border-color)}.loading,.no-history{padding:1.5rem;text-align:center;color:var(--text-secondary)}.error-message{background:#dc3545;color:#fff;padding:1rem 1.5rem;margin:0;border-bottom:1px solid rgba(0,0,0,.1)}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.commit-list::-webkit-scrollbar,.version-viewer::-webkit-scrollbar,.version-text::-webkit-scrollbar{width:8px}.commit-list::-webkit-scrollbar-track,.version-viewer::-webkit-scrollbar-track,.version-text::-webkit-scrollbar-track{background:var(--bg-secondary)}.commit-list::-webkit-scrollbar-thumb,.version-viewer::-webkit-scrollbar-thumb,.version-text::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.commit-list::-webkit-scrollbar-thumb:hover,.version-viewer::-webkit-scrollbar-thumb:hover,.version-text::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.diff-view{display:flex;flex-direction:column;height:100%;font-family:Monaco,Menlo,Consolas,monospace;font-size:13px}.diff-header-info{display:flex;align-items:center;gap:1rem;padding:.75rem;background:var(--bg-secondary);border-radius:4px;margin-bottom:.5rem;font-size:.9rem}.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{flex:1;overflow-y:auto;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:4px;padding:0}.diff-line-added,.diff-line-removed,.diff-line-unchanged{display:flex;align-items:flex-start;padding:0;margin:0;line-height:1.5;white-space:pre-wrap;word-break:break-word}.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:transparent;border-left:3px solid transparent}.diff-marker{flex-shrink:0;width:30px;padding:0 8px;text-align:center;-webkit-user-select:none;user-select:none;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;padding:0 8px;min-height:1.5em}[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{width:600px;max-width:90vw;max-height:80vh;display:flex;flex-direction:column}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px;border-bottom:1px solid var(--border-color)}.modal-header h3{margin:0;font-size:18px}.modal-close{background:transparent;border:none;font-size:24px;cursor:pointer;color:var(--text-secondary);padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:4px}.modal-close:hover{background:var(--bg-hover);color:var(--text-primary)}.modal-body{padding:20px;overflow-y:auto;flex:1}.upload-area{border:2px dashed var(--border-color);border-radius:8px;padding:40px 20px;text-align:center;cursor:pointer;transition:all .2s;background:var(--bg-secondary);margin-bottom:24px}.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{font-size:48px;margin-bottom:12px}.upload-area p{margin:8px 0;color:var(--text-primary)}.upload-hint{font-size:12px;color:var(--text-secondary)}.upload-status{display:flex;flex-direction:column;align-items:center;gap:12px}.attachments-list{min-height:200px}.attachments-list ul{list-style:none;padding:0;margin:0}.attachment-item{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--border-color);border-radius:6px;margin-bottom:8px;background:var(--bg-primary);transition:all .2s}.attachment-item:hover{background:var(--bg-hover);border-color:var(--border-hover)}.file-icon{font-size:24px;flex-shrink:0}.file-info{flex:1;min-width:0}.file-name{font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-meta{font-size:12px;color:var(--text-secondary);margin-top:2px}.file-actions{display:flex;gap:8px;align-items:center}.btn-insert{background:var(--accent-color);color:#fff;border:none;padding:6px 12px;border-radius:4px;cursor:pointer;font-size:13px;font-weight:500;transition:all .2s}.btn-insert:hover{opacity:.9;transform:translateY(-1px)}.btn-download,.btn-delete{background:transparent;border:1px solid var(--border-color);width:32px;height:32px;border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;text-decoration:none;font-size:16px}.btn-download:hover{background:var(--bg-tertiary);border-color:var(--accent-color)}.btn-delete:hover{background:#fee;border-color:#f44}.spinner{border:3px solid var(--bg-tertiary);border-top:3px solid var(--accent-color);border-radius:50%;width:24px;height:24px;animation:spin .8s linear infinite}.loading-state,.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;color:var(--text-secondary);gap:12px}.editor{display:flex;flex-direction:column;height:100%;background:var(--bg-primary)}.editor.empty{justify-content:center;align-items:center;background:var(--bg-tertiary)}.editor.empty .empty-state{text-align:center;color:var(--text-secondary);display:flex;flex-direction:column;align-items:center;gap:12px}.editor.empty .empty-icon,.editor.loading .loading-spinner,.editor.error .error-icon{font-size:48px}.editor.loading,.editor.error{justify-content:center;align-items:center;background:var(--bg-tertiary)}.editor .loading-state,.editor .error-state{display:flex;flex-direction:column;align-items:center;gap:16px;color:var(--text-secondary)}.editor .error-state{color:#e74c3c;cursor:pointer;padding:20px;border-radius:8px}.editor .error-state:hover{background:#e74c3c1a}.editor .loading-spinner{width:32px;height:32px;border:3px solid var(--border-color);border-top-color:#667eea;border-radius:50%;animation:spin .8s linear infinite}.editor-header{display:flex;justify-content:space-between;align-items:center;padding:10px 15px;border-bottom:1px solid var(--border-color);background:var(--bg-secondary)}.editor-title-row{display:flex;align-items:center;gap:8px}.editor-header h3{margin:0;font-size:16px;font-weight:600}.format-toggle-btn{background:var(--bg-primary);border:1px solid var(--border-color);padding:4px 8px;border-radius:4px;cursor:pointer;color:var(--text-secondary);font-size:14px;font-weight:700;transition:all .2s;line-height:1}.format-toggle-btn:hover{background:var(--bg-hover);border-color:var(--accent-color);color:var(--text-primary)}.format-toggle-btn.active{background:var(--accent-color);border-color:var(--accent-color);color:#fff}.editor-actions{display:flex;gap:10px;align-items:center}.save-status{font-size:12px;color:var(--text-secondary)}.save-status.saving{color:#667eea}.history-btn{background:var(--bg-primary);border:1px solid var(--border-color);padding:6px 12px;border-radius:4px;cursor:pointer;color:var(--text-primary);font-size:13px;transition:all .2s}.history-btn:hover{background:var(--bg-hover);border-color:var(--accent-color)}.dictate-btn{background:var(--bg-primary);border:1px solid var(--border-color);padding:6px 12px;border-radius:4px;cursor:pointer;color:var(--text-primary);font-size:13px;transition:all .2s}.dictate-btn:hover{background:var(--bg-hover);border-color:var(--accent-color)}.dictate-btn.listening{background:#e74c3c;color:#fff;border-color:#c0392b;animation:pulse-mic 1.5s ease-in-out infinite}@keyframes pulse-mic{0%,to{opacity:1}50%{opacity:.7}}.save-error{font-size:12px;color:#e74c3c;cursor:pointer}.save-error:hover{text-decoration:underline}.editor-actions button{padding:6px 12px;font-size:13px;background:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer}.editor-actions button:hover:not(:disabled){background:#0056b3}.editor-actions button:disabled{background:#ccc;cursor:not-allowed}.editor-textarea{flex:1;padding:20px;border:none;outline:none;resize:none;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:14px;line-height:1.6;background:var(--bg-primary);color:var(--text-primary)}.format-toolbar{display:flex;align-items:center;gap:4px;padding:8px 15px;background:var(--bg-tertiary);border-bottom:1px solid var(--border-color);flex-wrap:wrap}.format-group{display:flex;gap:2px}.format-toolbar button{background:var(--bg-primary);border:1px solid var(--border-color);padding:6px 10px;border-radius:4px;cursor:pointer;color:var(--text-primary);font-size:13px;min-width:32px;transition:all .15s}.format-toolbar button:hover{background:var(--bg-hover);border-color:var(--accent-color)}.format-toolbar button:active{transform:scale(.95)}.format-toolbar button code{font-family:Monaco,Menlo,monospace;font-size:11px}.format-separator{width:1px;height:24px;background:var(--border-color);margin:0 6px}.table-of-contents{position:relative}.toc-toggle{display:flex;align-items:center;gap:6px;padding:6px 12px;background:transparent;border:1px solid var(--border-color);border-radius:4px;color:var(--text-primary);font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;white-space:nowrap}.toc-toggle:hover{background:var(--bg-hover);border-color:var(--border-hover)}.toc-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:8px;box-shadow:0 4px 12px var(--shadow);min-width:280px;max-width:400px;max-height:400px;overflow:hidden;z-index:1000}.toc-nav{padding:12px;overflow-y:auto;max-height:380px}.toc-nav::-webkit-scrollbar{width:6px}.toc-nav::-webkit-scrollbar-track{background:transparent}.toc-nav::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}.toc-nav::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}.toc-list{list-style:none;margin:0;padding:0}.toc-item{margin:0;padding:0}.toc-level-1{padding-left:0}.toc-level-2{padding-left:12px}.toc-level-3{padding-left:24px}.toc-level-4{padding-left:36px}.toc-level-5{padding-left:48px}.toc-level-6{padding-left:60px}.toc-link{display:block;width:100%;padding:6px 8px;background:transparent;border:none;color:var(--text-secondary);text-align:left;text-decoration:none;border-radius:4px;font-size:13px;line-height:1.4;transition:all .2s;border-left:2px solid transparent;cursor:pointer}.toc-link:hover{color:var(--text-primary);background:var(--bg-hover)}.toc-item.active .toc-link{color:var(--accent-color);background:var(--accent-bg);border-left-color:var(--accent-color);font-weight:500}.preview{display:flex;flex-direction:column;height:100%;background:var(--bg-primary);border-left:1px solid var(--border-color)}.preview.empty{justify-content:center;align-items:center;background:var(--bg-tertiary)}.preview.empty .empty-state{text-align:center;color:var(--text-secondary)}.preview-header{display:flex;justify-content:space-between;align-items:center;padding:10px 15px;border-bottom:1px solid var(--border-color);background:var(--bg-secondary)}.preview-header h3{margin:0;font-size:16px;font-weight:600;color:var(--text-primary)}.preview-actions{display:flex;align-items:center;gap:10px}.export-dropdown{position:relative}.export-dropdown-btn{background:transparent;border:1px solid var(--border-color);color:var(--text-secondary);padding:6px 8px;border-radius:4px;cursor:pointer;display:flex;align-items:center;gap:4px;transition:all .2s}.export-dropdown-btn:hover{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--text-secondary)}.export-dropdown-btn svg:first-child{display:block}.export-dropdown-btn span{font-size:10px;line-height:1}.export-menu{position:absolute;top:calc(100% + 4px);right:0;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:6px;box-shadow:0 4px 12px #00000026;min-width:200px;z-index:1000;overflow:hidden}.export-menu-item{width:100%;background:transparent;border:none;color:var(--text-primary);padding:10px 12px;text-align:left;cursor:pointer;display:flex;align-items:center;gap:8px;font-size:14px;transition:background .15s}.export-menu-item:hover{background:var(--bg-tertiary)}.export-menu-item svg{flex-shrink:0}.open-window-btn{background:transparent;border:1px solid var(--border-color);color:var(--text-secondary);padding:6px 8px;border-radius:4px;cursor:pointer;display:flex;align-items:center;transition:all .2s}.open-window-btn:hover{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--text-secondary)}.open-window-btn svg{display:block}.sync-scroll-btn{background:transparent;border:1px solid var(--border-color);color:var(--text-secondary);padding:6px 10px;border-radius:4px;cursor:pointer;font-size:14px;font-weight:700;transition:all .2s}.sync-scroll-btn:hover{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--text-secondary)}.loading-indicator{color:#007bff;animation:pulse 1s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}.preview-content{flex:1;padding:20px;overflow-y:auto;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;color:var(--text-primary)}.preview-content h1{font-size:2em;margin:.67em 0;border-bottom:1px solid var(--border-color);padding-bottom:.3em;color:var(--text-primary)}.preview-content h2{font-size:1.5em;margin:.75em 0;border-bottom:1px solid var(--border-color);padding-bottom:.3em;color:var(--text-primary)}.preview-content h3{font-size:1.25em;margin:1em 0;color:var(--text-primary)}.preview-content code{background:var(--bg-secondary);padding:.2em .4em;border-radius:3px;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:.9em;color:var(--text-primary)}.preview-content pre{background:var(--bg-secondary);padding:16px;border-radius:6px;overflow-x:auto}.preview-content pre code{background:none;padding:0}.code-block-wrapper pre,.code-block-wrapper code{background:none!important;padding:0!important;margin:0!important;border-radius:0!important}.preview-content blockquote{border-left:4px solid var(--border-color);padding-left:16px;margin-left:0;color:var(--text-secondary)}.preview-content table{border-collapse:collapse;width:100%;margin:1em 0}.preview-content table th,.preview-content table td{border:1px solid var(--border-color);padding:8px 12px;text-align:left}.preview-content table th{background:var(--bg-secondary);font-weight:600}.preview-content ul,.preview-content ol{padding-left:2em}.preview-content a{color:#007bff;text-decoration:none}.preview-content a:hover{text-decoration:underline}.preview-content img{max-width:100%;height:auto}.preview-content figure{margin:16px 0;text-align:center}.preview-content figcaption{margin-top:8px;font-size:.9em;color:var(--text-secondary);font-style:italic}.code-block-wrapper{position:relative;margin:16px 0;border-radius:6px;overflow:hidden;border:1px solid #3e4451;background:#282c34}.code-block-wrapper.light{border:1px solid #d0d0d0;background:#fafafa}.code-block-wrapper.light pre,.code-block-wrapper.light code,.code-block-wrapper.light>div:last-child{background:#fafafa!important}.code-block-wrapper.dark pre,.code-block-wrapper.dark code,.code-block-wrapper.dark>div:last-child{background:#282c34!important}[data-theme=light] .code-block-wrapper{border:1px solid #d0d0d0}@media(prefers-color-scheme:light){[data-theme=auto] .code-block-wrapper{border:1px solid #d0d0d0}}.code-block-header{display:flex;justify-content:space-between;align-items:center;padding:6px 12px;background:#21252b;border-bottom:1px solid #3e4451}[data-theme=light] .code-block-header{background:#e0e0e0;border-bottom:1px solid #d0d0d0}@media(prefers-color-scheme:light){[data-theme=auto] .code-block-header{background:#e0e0e0;border-bottom:1px solid #d0d0d0}}.code-language-label{font-size:11px;color:var(--text-secondary);text-transform:uppercase;font-weight:600;letter-spacing:.5px}.code-copy-btn{border-radius:4px;padding:4px 10px;font-size:12px;cursor:pointer;opacity:0;transition:opacity .2s,background .2s;background:#3e4451;border:1px solid #4d5566;color:#abb2bf}.code-copy-btn:hover{background:#4d5566;border-color:#5c6370}[data-theme=light] .code-copy-btn{background:#fff;border:1px solid #c0c0c0;color:#333}[data-theme=light] .code-copy-btn:hover{background:#f0f0f0;border-color:#a0a0a0}@media(prefers-color-scheme:light){[data-theme=auto] .code-copy-btn{background:#fff;border:1px solid #c0c0c0;color:#333}[data-theme=auto] .code-copy-btn:hover{background:#f0f0f0;border-color:#a0a0a0}}.code-block-wrapper:hover .code-copy-btn{opacity:1}.code-copy-btn.copied{background:#28a745;border-color:#28a745;color:#fff;opacity:1}.login-container{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg-secondary)}.login-card{background:var(--bg-primary);border-radius:12px;padding:40px;box-shadow:0 4px 20px var(--shadow);width:100%;max-width:400px;border:1px solid var(--border-color)}.login-header{text-align:center;margin-bottom:32px}.login-header h1{margin:0 0 8px;font-size:32px;color:var(--text-primary)}.login-header p{margin:0;color:var(--text-secondary);font-size:14px}.login-form{display:flex;flex-direction:column;gap:20px}.form-group input{width:100%;padding:12px 16px;font-size:16px;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-secondary);color:var(--text-primary);outline:none;transition:border-color .2s}.form-group input:focus{border-color:#667eea}.form-group input.error{border-color:#e74c3c}.form-group input:disabled{opacity:.6;cursor:not-allowed}.error-message{display:flex;align-items:center;gap:8px;padding:12px;background:#e74c3c1a;border:1px solid #e74c3c;border-radius:6px;color:#e74c3c;font-size:14px}.error-icon{font-size:16px}.login-button{width:100%;padding:12px 16px;font-size:16px;font-weight:600;background:#667eea;color:#fff;border:none;border-radius:6px;cursor:pointer;transition:background .2s}.login-button:hover:not(:disabled){background:#5a6fd6}.login-button:disabled{background:#ccc;cursor:not-allowed;opacity:.6}.search-trigger{display:flex;align-items:center;gap:8px;padding:6px 12px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:6px;color:var(--text-secondary);cursor:pointer;font-size:14px;transition:all .2s}.search-trigger:hover{background:var(--bg-hover);border-color:var(--border-hover)}.search-icon{font-size:16px}.search-hint{color:var(--text-secondary)}.search-shortcut{padding:2px 6px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:4px;font-size:12px;font-family:monospace}.search-modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:flex-start;justify-content:center;padding-top:100px;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.search-modal{width:90%;max-width:600px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:12px;box-shadow:0 20px 60px #0000004d;overflow:hidden}.search-input-container{display:flex;align-items:center;padding:16px;border-bottom:1px solid var(--border-color);gap:12px}.search-input-icon{font-size:20px}.search-input{flex:1;padding:8px;background:transparent;border:none;color:var(--text-primary);font-size:16px;outline:none}.search-input::placeholder{color:var(--text-secondary)}.search-spinner{font-size:16px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.search-results{max-height:400px;overflow-y:auto}.search-result{padding:12px 16px;border-bottom:1px solid var(--border-color);cursor:pointer;transition:background .15s}.search-result:hover,.search-result.selected{background:var(--bg-hover)}.search-result:last-child{border-bottom:none}.search-result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.search-result-title{font-weight:600;color:var(--text-primary);font-size:14px}.search-result-matches{font-size:12px;color:var(--text-secondary);background:var(--bg-secondary);padding:2px 8px;border-radius:4px}.search-result-path{font-size:12px;color:var(--text-secondary);margin-bottom:6px;font-family:monospace}.search-result-snippet{font-size:13px;color:var(--text-secondary);line-height:1.5;white-space:pre-wrap;word-wrap:break-word}.search-result-snippet strong{color:var(--accent-color);font-weight:700;background:var(--accent-bg);padding:1px 2px;border-radius:2px}.search-no-results{padding:40px 16px;text-align:center;color:var(--text-secondary)}.search-footer{display:flex;gap:16px;padding:12px 16px;border-top:1px solid var(--border-color);font-size:12px;color:var(--text-secondary);background:var(--bg-secondary)}.search-footer span{display:flex;align-items:center;gap:4px}*{box-sizing:border-box}:root{--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--bg-tertiary: #fafafa;--bg-hover: #eeeeee;--text-primary: #1a1a1a;--text-secondary: #4a4a4a;--border-color: #d0d0d0;--border-hover: #999999;--shadow: rgba(0, 0, 0, .1);--header-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--accent-color: #5568d3;--accent-bg: rgba(85, 104, 211, .1)}[data-theme=dark]{--bg-primary: #1a1a1a;--bg-secondary: #2a2a2a;--bg-tertiary: #222222;--bg-hover: #363636;--text-primary: #f0f0f0;--text-secondary: #c0c0c0;--border-color: #4a4a4a;--border-hover: #6a6a6a;--shadow: rgba(0, 0, 0, .4);--header-bg: linear-gradient(135deg, #4a5f8f 0%, #5a3a72 100%);--accent-color: #8a9ff0;--accent-bg: rgba(138, 159, 240, .15)}[data-theme=high-contrast]{--bg-primary: #000000;--bg-secondary: #1a1a1a;--bg-tertiary: #0d0d0d;--bg-hover: #2a2a2a;--text-primary: #ffffff;--text-secondary: #ffff00;--border-color: #ffffff;--border-hover: #ffff00;--shadow: rgba(255, 255, 255, .3);--header-bg: #000000;--accent-color: #00ffff;--accent-bg: rgba(0, 255, 255, .2)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-primary);color:var(--text-primary)}.app{display:flex;flex-direction:column;height:100vh;overflow:hidden}.app-header{background:var(--header-bg);color:#fff;padding:15px 20px;box-shadow:0 2px 4px var(--shadow)}.header-content{display:flex;justify-content:space-between;align-items:center;gap:20px}.header-left h1{margin:0;font-size:24px;font-weight:600}.header-left .tagline{margin:5px 0 0;font-size:13px;opacity:.9}.breadcrumbs{flex:1;display:flex;align-items:center;gap:4px;padding:0 20px;font-size:14px;overflow-x:auto;white-space:nowrap}.breadcrumb-item{display:inline-flex;align-items:center;gap:4px}.breadcrumb-link{background:none;border:none;color:#fff;cursor:pointer;padding:4px 8px;border-radius:4px;font-size:14px;transition:background .2s}.breadcrumb-link:hover:not(:disabled){background:#fff3}.breadcrumb-link:disabled{cursor:default;font-weight:600;opacity:1}.breadcrumb-separator{color:#fff9;margin:0 2px}.header-actions{display:flex;gap:10px;align-items:center}.theme-toggle{background:#fff3;border:1px solid rgba(255,255,255,.3);color:#fff;font-size:24px;width:48px;height:48px;border-radius:50%;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center}.theme-toggle:hover{background:#ffffff4d;transform:scale(1.05)}.logout-button{background:#fff3;border:1px solid rgba(255,255,255,.3);color:#fff;padding:8px 16px;border-radius:6px;cursor:pointer;font-size:14px;transition:all .2s;white-space:nowrap}.logout-button:hover{background:#ffffff4d}.about-button{background:#fff3;border:1px solid rgba(255,255,255,.3);color:#fff;width:36px;height:36px;border-radius:50%;cursor:pointer;font-size:18px;font-weight:700;transition:all .2s;display:flex;align-items:center;justify-content:center}.about-button:hover{background:#ffffff4d;transform:scale(1.05)}.about-overlay{position:fixed;inset:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.about-modal{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:12px;padding:24px 32px;max-width:480px;width:90%;max-height:85vh;overflow-y:auto;position:relative;box-shadow:0 8px 32px var(--shadow);animation:slideUp .3s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.about-close{position:absolute;top:12px;right:12px;background:none;border:none;font-size:20px;cursor:pointer;color:var(--text-secondary);width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s}.about-close:hover{background:var(--bg-secondary);color:var(--text-primary)}.about-modal h2{margin:0 0 8px;font-size:28px;color:var(--text-primary)}.about-version{margin:0 0 12px;font-size:13px;color:var(--text-secondary)}.about-version a,.about-version a:visited{color:var(--accent-color);text-decoration:none}.about-version a:hover{text-decoration:underline}.about-author{margin:0 0 16px;font-size:14px;color:var(--text-secondary)}.about-author a{color:var(--accent-color);text-decoration:none;font-weight:600}.about-author a:hover{text-decoration:underline}.about-description{margin:0 0 20px;font-size:14px;line-height:1.6;color:var(--text-primary)}.about-modal h3{margin:0 0 12px;font-size:16px;color:var(--text-primary);border-bottom:1px solid var(--border-color);padding-bottom:8px}.about-features{margin:0;padding:0;list-style:none}.about-features li{padding:6px 0;font-size:13px;color:var(--text-primary);border-bottom:1px solid var(--bg-secondary)}.about-features li:last-child{border-bottom:none}.app.loading{display:flex;align-items:center;justify-content:center;background:var(--bg-secondary)}.app .loading-state{display:flex;flex-direction:column;align-items:center;gap:16px;color:var(--text-secondary)}.app .loading-spinner{width:48px;height:48px;border:4px solid var(--border-color);border-top-color:#667eea;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.app-container{display:flex;flex:1;overflow:hidden;position:relative;flex-direction:column}.error-banner{background:#f44;color:#fff;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;font-weight:500;border-bottom:1px solid #cc0000;animation:slideDown .3s ease;z-index:100;flex-shrink:0}.error-banner span:first-child{flex-shrink:0}.error-dismiss{background:transparent;border:none;color:#fff;cursor:pointer;font-size:18px;padding:0 8px;opacity:.8;transition:opacity .2s}.error-dismiss:hover{opacity:1}@keyframes slideDown{0%{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}.panes-container{display:flex;flex:1;overflow:hidden}.left-pane,.right-pane{position:relative;display:flex;flex-direction:column;overflow:hidden;flex-shrink:0}.left-pane{background:var(--bg-secondary)}.left-pane.collapsed{transition:width .3s ease;overflow:hidden;border:none}.right-pane{background:var(--bg-primary);border-left:1px solid var(--border-color)}.right-pane.collapsed{transition:width .3s ease;overflow:hidden;border:none}.center-pane{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}.pane-content{flex:1;display:flex;flex-direction:column;overflow:hidden}.folder-tree-section{flex-shrink:0;overflow-y:auto;position:relative}.page-list-section{flex:1;overflow-y:auto;min-height:100px}.collapse-btn{position:absolute;top:50%;transform:translateY(-50%);z-index:10;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:4px;width:32px;height:40px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--text-secondary);box-shadow:0 2px 4px var(--shadow)}.left-pane .collapse-btn{right:-12px}.right-pane .collapse-btn{left:-12px}.collapse-btn:hover{background:var(--bg-tertiary)}.expand-btn{position:absolute;top:50%;transform:translateY(-50%);z-index:10;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:4px;width:32px;height:40px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--text-secondary);box-shadow:0 2px 4px var(--shadow)}.expand-btn-left{left:0}.expand-btn-right{right:0}.expand-btn:hover{background:var(--bg-tertiary)}.resize-handle{z-index:10;transition:background-color .2s}.resize-handle:hover{background-color:#667eea4d}.resize-handle:active{background-color:#667eea80}.resize-handle-right,.resize-handle-left{position:absolute;top:0;bottom:0;width:5px;cursor:col-resize}.resize-handle-right{right:0}.resize-handle-left{left:0}.resize-handle-horizontal{position:relative;width:100%;height:5px;cursor:row-resize;flex-shrink:0}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#888;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#555}@media(max-width:1024px){.header-left .tagline{display:none}.breadcrumbs{padding:0 10px}.header-actions{gap:6px}.logout-button span:last-child{display:none}.logout-button{padding:8px 12px}}@media(max-width:768px){.app-header{padding:10px 15px}.header-left h1{font-size:20px}.header-content{gap:10px}.breadcrumbs{display:none}.theme-toggle{width:40px;height:40px;font-size:20px}.resize-handle{display:none}.collapse-btn,.expand-btn{width:40px;height:48px;font-size:14px}}@media(max-width:600px){.app-header{padding:8px 12px}.header-left h1{font-size:18px}.header-actions{gap:4px}.theme-toggle{width:36px;height:36px;font-size:18px}.logout-button{padding:6px 10px;font-size:16px}.panes-container{position:relative}.mobile-overlay{position:absolute;inset:0;background:#00000080;z-index:50}.left-pane:not(.collapsed),.right-pane:not(.collapsed){position:absolute;top:0;bottom:0;width:85vw!important;max-width:320px;z-index:100;box-shadow:2px 0 8px var(--shadow)}.left-pane:not(.collapsed){left:0}.right-pane:not(.collapsed){right:0;box-shadow:-2px 0 8px var(--shadow)}}@media(max-width:480px){.header-left h1{font-size:16px}.theme-toggle{width:32px;height:32px;font-size:16px}.logout-button{padding:4px 8px;font-size:14px}}@media(hover:none)and (pointer:coarse){.collapse-btn,.expand-btn{width:44px;height:52px}.breadcrumb-link{padding:8px 12px}.page-item,.folder-item{padding:10px 12px;min-height:44px}}@media print{.app-header,.left-pane,.right-pane,.collapse-btn,.expand-btn,.resize-handle{display:none!important}.center-pane{width:100%!important}}