:root{--bg:#12141b;--bg2:#171a24;--bg3:#1f232f;--bg4:#262b3a;--border:#272c3a;--border2:#343b4e;--text:#e7eaf1;--text2:#a2abbf;--text3:#6b7488;--accent:#f5a623;--accent2:#e09417;--accent-glow:rgba(245,166,35,.15);--accent-soft:rgba(245,166,35,.1);--danger:#ef5f5f;--success:#4ecb85;--info:#5eb0f0;--radius:10px;--radius-sm:8px;--radius-lg:14px;--sidebar-w:280px;--topbar-h:54px;--font-size:14px;--icon-size:16px;--font-ui:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;--font-display:"Syne","Inter",sans-serif;--font-mono:"DM Mono",ui-monospace,"SFMono-Regular",monospace;--shadow-sm:0 1px 2px rgba(0,0,0,.24);--shadow-md:0 6px 20px rgba(0,0,0,.32);--shadow-lg:0 18px 50px rgba(0,0,0,.45);--ring:0 0 0 3px var(--accent-glow);--dur:.16s}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body{font-family:var(--font-ui);background:var(--bg);color:var(--text);font-size:var(--font-size);line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}body.auth-pending #app{visibility:hidden;pointer-events:none}button,select,input,textarea,a{font-family:inherit}button,a{color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}input:focus-visible,textarea:focus-visible,select:focus-visible{outline:none}*{scrollbar-width:thin;scrollbar-color:var(--border2) transparent}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:var(--border2);border-radius:8px}::-webkit-scrollbar-thumb:hover{background:var(--text3)}.hidden{display:none!important}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeUp{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}@keyframes modalIn{0%{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes panelIn{0%{opacity:0;transform:translateY(-50%) translate(-10px)}to{opacity:1;transform:translateY(-50%) translate(0)}}@keyframes sheetIn{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes slideInFromLeft{0%{transform:translate(-16px);opacity:0}to{transform:translate(0);opacity:1}}@keyframes dropGlow{0%,to{box-shadow:inset 0 0 0 2px var(--accent-soft)}50%{box-shadow:inset 0 0 0 2px var(--accent),0 0 14px var(--accent-glow)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}#app{display:flex;height:100vh;overflow:hidden;position:relative}#mobileTopBar{display:none;position:fixed;top:0;left:0;right:0;height:var(--topbar-h);background:var(--bg2);border-bottom:1px solid 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var(--dur)}.mob-btn:active{border-color:var(--accent);color:var(--accent)}#sidebarBackdrop{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;z-index:55;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}#sidebarBackdrop.show{display:block;animation:fadeIn .2s ease}#sidebar{width:var(--sidebar-w);min-width:210px;max-width:460px;background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden;transition:transform .28s cubic-bezier(.4,0,.2,1);z-index:56;position:relative}.sidebar-resizer{position:absolute;top:0;right:-4px;width:9px;height:100%;cursor:col-resize;z-index:2;touch-action:none}.sidebar-resizer:after{content:"";position:absolute;top:0;bottom:0;left:4px;width:2px;background:transparent;transition:background .15s,box-shadow .15s}.sidebar-resizer:hover:after,body.sidebar-resizing .sidebar-resizer:after{background:var(--accent);box-shadow:0 0 10px var(--accent-glow)}body.sidebar-resizing{cursor:col-resize;-webkit-user-select:none;user-select:none}.sidebar-header{padding:16px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px;justify-content:space-between;flex-shrink:0}.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:800;font-size:17px;letter-spacing:-.01em}.logo-icon{width:34px;height:34px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#111;border-radius:9px;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 4px 12px var(--accent-glow)}.sidebar-close{display:none;background:transparent;border:none;color:var(--text3);cursor:pointer;width:34px;height:34px;font-size:19px;border-radius:8px;align-items:center;justify-content:center}.sidebar-close:hover{color:var(--text);background:var(--bg3)}.connection-status{display:flex;align-items:center;gap:6px;font-size:10px;color:var(--success);text-transform:uppercase;letter-spacing:.6px;font-weight:600}.connection-status.offline{color:var(--danger)}.connection-status.offline .dot{background:var(--danger);box-shadow:0 0 6px var(--danger)}.connection-status .dot{width:7px;height:7px;background:var(--success);border-radius:50%;box-shadow:0 0 7px var(--success);animation:pulse 2.4s infinite}.settings-gear-btn{background:transparent;border:1px solid var(--border2);border-radius:8px;color:var(--text3);cursor:pointer;width:32px;height:32px;display:flex;align-items:center;justify-content:center;transition:all var(--dur);flex-shrink:0}.settings-gear-btn:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}.sidebar-actions{padding:12px 12px 10px;display:grid;grid-template-columns:repeat(4,1fr);gap:7px;flex-shrink:0}.btn-action{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:11px 4px;background:var(--bg3);border:1px solid transparent;border-radius:var(--radius);color:var(--text2);font-size:11px;font-weight:600;cursor:pointer;transition:all var(--dur);width:100%;text-align:center;min-height:60px}.btn-action span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.btn-action:hover{background:var(--bg4);color:var(--text);transform:translateY(-1px)}.btn-action svg{color:var(--text3);transition:color var(--dur);flex-shrink:0}.btn-action:hover svg{color:var(--accent)}.btn-action.accent{background:var(--accent-soft);border-color:#f5a62359;color:var(--accent)}.btn-action.accent svg{color:var(--accent)}.btn-action.accent:hover{background:var(--accent-glow)}.sidebar-controls{padding:8px 12px 10px;display:flex;flex-direction:column;gap:8px;border-bottom:1px solid var(--border);flex-shrink:0}.search-row{position:relative;display:flex;align-items:center}.file-search{width:100%;padding:9px 30px 9px 12px;background:var(--bg3);border:1px solid var(--border2);border-radius:var(--radius);color:var(--text);font-size:13px;outline:none;transition:all var(--dur)}.file-search:focus{border-color:var(--accent);box-shadow:var(--ring)}.file-search::placeholder{color:var(--text3)}.search-clear{position:absolute;right:8px;background:none;border:none;color:var(--text3);cursor:pointer;font-size:14px;display:none;padding:4px;border-radius:6px}.search-clear:hover{color:var(--text)}.search-clear.show{display:block}.view-controls{display:flex;align-items:center;gap:6px}.view-btn{padding:7px 11px;background:var(--bg3);border:1px solid var(--border2);border-radius:var(--radius-sm);color:var(--text3);font-size:12px;font-weight:500;cursor:pointer;transition:all var(--dur)}.view-btn.active{background:var(--accent-glow);border-color:var(--accent);color:var(--accent)}.view-btn:hover:not(.active){border-color:var(--text3);color:var(--text2)}.view-spacer{flex:1}.sort-select{background:var(--bg3);border:1px solid var(--border2);border-radius:var(--radius-sm);color:var(--text2);font-size:12px;padding:7px 8px;cursor:pointer;outline:none;transition:border var(--dur)}.sort-select:focus{border-color:var(--accent)}.new-folder-btn{display:flex;align-items:center;justify-content:center;gap:6px;padding:8px 10px;background:transparent;border:1px dashed var(--border2);border-radius:var(--radius-sm);color:var(--text3);font-size:12px;font-weight:500;cursor:pointer;transition:all var(--dur);width:100%}.new-folder-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.file-tree{flex:1;overflow-y:auto;padding:8px;-webkit-overflow-scrolling:touch}.tree-item{display:flex;align-items:center;padding:11px;cursor:pointer;transition:background .1s,color .1s;gap:11px;font-size:var(--font-size);color:var(--text2);-webkit-user-select:none;user-select:none;position:relative;min-height:46px;border-radius:var(--radius-sm)}.tree-item:hover{background:var(--bg3);color:var(--text)}.tree-item.active{background:var(--accent-glow);color:var(--accent)}.tree-item.active:before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;background:var(--accent);border-radius:0 3px 3px 0}.tree-item .item-icon{width:var(--icon-size);font-size:var(--icon-size);flex-shrink:0;opacity:.85;text-align:center}.tree-item.folder-item .item-icon{opacity:1}.tree-item .item-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tree-item .item-meta{font-size:11px;color:var(--text3);flex-shrink:0;font-family:var(--font-mono)}.tree-item .item-actions{display:none;gap:2px;align-items:center}.tree-item:hover .item-actions{display:flex}.item-btn{background:transparent;border:none;color:var(--text3);cursor:pointer;padding:5px 6px;border-radius:6px;font-size:12px;display:flex;align-items:center;transition:all .1s}.item-btn:hover{color:var(--text);background:var(--bg4)}.item-btn.danger:hover{color:var(--danger);background:#ef5f5f1f}.folder-children{display:none}.folder-children.open{display:block}.folder-arrow{font-size:10px;color:var(--text3);flex-shrink:0;width:12px;text-align:center;transition:transform .15s}.tree-item[draggable=true]{cursor:grab}.tree-item[draggable=true]:active{cursor:grabbing}.tree-item.drag-source{opacity:.35}.tree-item.drag-over-folder{background:var(--accent-glow)!important;box-shadow:inset 0 0 0 1px var(--accent);color:var(--accent)}.tree-item .item-check{width:16px;height:16px;flex-shrink:0;accent-color:var(--accent);cursor:pointer;display:none}.select-mode .tree-item .item-check{display:block}.select-mode .tree-item .item-actions{display:none!important}.tree-item.checked{background:var(--accent-glow)!important}.tree-item.checked:before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;background:var(--accent);border-radius:0 3px 3px 0}.empty-tree{text-align:center;padding:48px 20px;color:var(--text3);font-size:13px;line-height:1.7}.loading-spinner{display:flex;justify-content:center;padding:44px}.spinner{width:24px;height:24px;border:2px solid var(--border2);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}.file-tree.folder-view{padding:10px;display:block;overflow-x:hidden}.file-tree.folder-view>.folder-card,.file-tree.folder-view>.root-section{margin-bottom:8px}.folder-card{background:var(--bg3);border:1px solid var(--border2);border-radius:var(--radius);overflow:hidden;transition:border-color .15s,box-shadow .15s}.folder-card.dnd-over{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);animation:dropGlow .8s ease infinite}.folder-card-header{display:flex;align-items:center;gap:9px;padding:11px 12px;cursor:pointer;-webkit-user-select:none;user-select:none;transition:background .12s}.folder-card-header:hover{background:var(--accent-soft)}.folder-drag-handle{font-size:12px;color:var(--text3);cursor:grab;-webkit-user-select:none;user-select:none;letter-spacing:-1px}.folder-drag-handle.drag-source{opacity:.35}.folder-card.is-open .folder-card-header{border-bottom:1px solid var(--border)}.folder-card-icon{font-size:17px;flex-shrink:0}.folder-card-name{flex:1;font-family:var(--font-display);font-weight:700;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.folder-card-count{font-size:11px;color:var(--text3);background:var(--bg);padding:2px 9px;border-radius:999px;flex-shrink:0;font-family:var(--font-mono)}.folder-card-chevron{font-size:9px;color:var(--text3);transition:transform .18s;flex-shrink:0}.folder-card.is-open .folder-card-chevron{transform:rotate(90deg)}.folder-card-actions{display:none;gap:2px}.folder-card-header:hover .folder-card-actions{display:flex}.folder-card-files{display:none;flex-direction:column;gap:2px;padding:7px}.folder-card.is-open>.folder-card-files{display:flex}.file-card-row{display:flex;align-items:center;gap:10px;padding:10px;border-radius:var(--radius-sm);cursor:pointer;transition:background .1s,color .1s;color:var(--text2);font-size:var(--font-size);position:relative;-webkit-user-select:none;user-select:none;min-height:46px}.file-card-row:hover{background:var(--bg4);color:var(--text)}.file-card-row.active{background:var(--accent-glow);color:var(--accent)}.file-card-row[draggable=true]{cursor:grab}.file-card-row.drag-source{opacity:.3}.file-card-row 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var(--border)}.root-section-label{font-family:var(--font-display);font-weight:700;font-size:11px;color:var(--text3);text-transform:uppercase;letter-spacing:.6px;flex:1}.root-section-body{padding:7px;display:flex;flex-direction:column;gap:2px}.root-section.root-empty{background:transparent;border-style:dashed}.root-section.root-empty .root-section-header{border-bottom:none}.folder-card.has-color{border-color:color-mix(in srgb,var(--folder-color) 40%,var(--border2))}.folder-card.has-color .folder-card-header{border-left:3px solid var(--folder-color)}.folder-card.has-color.is-open .folder-card-header{border-bottom-color:color-mix(in srgb,var(--folder-color) 30%,var(--border))}.drag-ghost-el{position:fixed;pointer-events:none;z-index:9999;background:var(--bg3);border:1px solid var(--accent);border-radius:var(--radius-sm);padding:6px 12px;font-size:12px;color:var(--accent);display:flex;align-items:center;gap:6px;box-shadow:var(--shadow-md);white-space:nowrap;opacity:0;transition:opacity 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var(--accent-glow)}.btn-primary:active{transform:translateY(0)}.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;background:var(--bg3);color:var(--text2);border:1px solid var(--border2);border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:all var(--dur);white-space:nowrap;text-decoration:none}.btn-secondary:hover{border-color:var(--text3);color:var(--text);background:var(--bg4)}.file-viewer,.pdf-viewer{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0;animation:fadeUp .28s ease}.viewer-header{padding:12px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--bg2);flex-shrink:0;flex-wrap:wrap;row-gap:8px}.viewer-title{display:flex;align-items:center;gap:12px;min-width:0;flex:1 1 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solid var(--border)!important;background:var(--bg2)!important;box-shadow:none!important;flex-shrink:0!important;gap:0!important;padding:4px 8px!important}.annot-panel.docked .ap-header{border-bottom:none;padding:0 10px 0 4px;height:40px;background:transparent;position:static;flex-shrink:0}.annot-panel.docked .ap-drag-handle{display:none}.annot-panel.docked .ap-title{font-size:12px;white-space:nowrap}.annot-panel.docked .ap-section{display:flex!important;flex-direction:row!important;align-items:center!important;flex-shrink:0;border-bottom:none!important;border-right:1px solid var(--border);padding:4px 10px!important;gap:6px!important;white-space:nowrap}.annot-panel.docked .ap-section:last-child{border-right:none}.annot-panel.docked .ap-section-label{display:none!important}.annot-panel.docked .ap-tool-grid,.annot-panel.docked .ap-color-grid,.annot-panel.docked .ap-transform-grid,.annot-panel.docked 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var(--dur)}.field-input:focus{border-color:var(--accent);box-shadow:var(--ring)}textarea.field-input{resize:vertical;min-height:90px}.field-hint{font-size:12px;color:var(--text3);margin-top:6px;display:block;line-height:1.5}.modal-desc{font-size:13px;color:var(--text2);margin-bottom:14px;line-height:1.6}.wide-modal{width:min(760px,96vw)!important}.seg{display:flex;flex-wrap:wrap;gap:6px}.seg-btn{flex:1 1 0;min-width:60px;padding:9px 10px;background:var(--bg3);border:1px solid var(--border2);border-radius:var(--radius-sm);color:var(--text2);font-size:12px;font-weight:500;cursor:pointer;transition:all var(--dur);text-align:center;white-space:nowrap}.seg-btn:hover{border-color:var(--text3);color:var(--text)}.seg-btn.active{background:var(--accent-glow);border-color:var(--accent);color:var(--accent)}.modal-body .field-label{margin-top:14px}.modal-body>.field-label:first-child,.modal-body 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var(--border2);color:var(--text2);font-size:20px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--dur)}.print-nav:hover{background:var(--accent);border-color:var(--accent);color:#111}.print-caption{font-size:12px;color:var(--text3);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:center}.print-caption-name{color:var(--text2)}.drop-zone{border:2px dashed var(--border2);border-radius:var(--radius);padding:28px 18px;text-align:center;cursor:pointer;transition:all .2s;color:var(--text3);display:flex;flex-direction:column;align-items:center;gap:10px;font-size:14px}.drop-zone.drag-over{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.drop-zone p{color:var(--text2);font-size:14px}.dz-sub{font-size:12px;color:var(--text3)}.btn-browse{display:inline-block;padding:9px 16px;background:var(--bg3);border:1px solid var(--border2);border-radius:var(--radius-sm);color:var(--text2);cursor:pointer;font-size:13px;font-weight:500;transition:all var(--dur)}.btn-browse:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.btn-browse-folder{border-color:#5eb0f066;color:var(--info)}.btn-browse-folder:hover{background:#5eb0f01a;border-color:var(--info);color:var(--info)}.browse-row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:12px}.upload-list{margin-top:12px;display:flex;flex-direction:column;gap:5px;max-height:220px;overflow-y:auto}.upload-item{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--bg3);border-radius:var(--radius-sm);font-size:13px;color:var(--text2)}.upload-item.upload-item-child{padding-left:28px;border-left:2px solid var(--border2);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.upload-item .ui-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.upload-item 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