:root{--bg:#0f1117;--bg2:#161b27;--bg3:#1e2535;--bg4:#252d40;--border:#2a3347;--border2:#323d55;--text:#e8ecf4;--text2:#8a93a8;--text3:#5a6478;--accent:#f5a623;--accent2:#e09417;--accent-glow:rgba(245,166,35,.15);--danger:#e05252;--success:#4ecb71;--info:#5eb0f0;--radius:8px;--sidebar-w:270px;--topbar-h:50px;--font-size:13px;--icon-size:15px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body{font-family:DM Mono,monospace;background:var(--bg);color:var(--text);font-size:var(--font-size)}body.auth-pending #app{visibility:hidden;pointer-events:none}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes modalIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes slideIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes 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var(--border);flex-shrink:0}.au-row{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--text3)}.au-count{background:var(--accent);color:#000;font-family:Syne,sans-serif;font-weight:700;font-size:11px;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center}.au-user-row{display:flex;align-items:center;gap:7px;margin-top:8px;padding-top:8px;border-top:1px solid var(--border)}.au-user-icon{font-size:13px;flex-shrink:0}.au-user-name{flex:1;color:var(--text2);font-size:calc(var(--font-size) - 1px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:Syne,sans-serif;font-weight:600}.au-change-btn{background:transparent;border:none;color:var(--text3);cursor:pointer;font-size:13px;padding:3px 6px;border-radius:4px;transition:all .12s;flex-shrink:0}.au-change-btn:hover{color:var(--accent);background:var(--accent-glow)}.user-folder-label{display:flex;align-items:center;gap:6px;padding:5px 12px 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var(--border2);border-radius:4px;cursor:pointer;padding:1px;background:var(--bg3)}.ap-color-preview{width:22px;height:22px;border-radius:50%;border:2px solid var(--border2);flex-shrink:0}.ap-transform-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}.ap-transform-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:6px 2px;background:var(--bg3);border:1px solid var(--border2);border-radius:6px;color:var(--text2);font-family:DM Mono,monospace;cursor:pointer;transition:all .12s;gap:2px;font-size:var(--icon-size)}.ap-transform-btn span{font-size:calc(var(--font-size) - 4px);color:var(--text3)}.ap-transform-btn:hover{background:var(--accent-glow);border-color:var(--accent);color:var(--accent)}.ap-transform-btn:hover span{color:var(--accent)}.ap-action{display:block;width:100%;margin-bottom:4px;padding:7px 10px;background:var(--bg3);border:1px solid var(--border2);border-radius:6px;color:var(--text2);font-family:DM 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var(--border2);border-radius:6px;color:var(--text2);font-size:calc(var(--font-size) + 1px);line-height:1;cursor:pointer;transition:all .12s}.ap-obj-btn:not(:disabled):hover{border-color:var(--accent);color:var(--accent);background:#f5a62314}.ap-obj-btn:not(:disabled):active{transform:translateY(1px)}.opacity-slider{width:72px;accent-color:var(--accent);cursor:pointer}#opacityVal,#imgOpacityVal{font-size:11px;color:var(--text2);min-width:34px}.annot-toolbar{background:var(--bg2);border-bottom:2px solid var(--accent);padding:7px 12px;flex-shrink:0;overflow-x:auto;-webkit-overflow-scrolling:touch}.annot-tools{display:flex;align-items:center;gap:5px;flex-wrap:wrap;row-gap:5px}.annot-label{font-size:11px;color:var(--text3);white-space:nowrap}.annot-sep{width:1px;height:20px;background:var(--border2);margin:0 2px;flex-shrink:0}.annot-btn{padding:5px 9px;background:var(--bg3);border:1px solid var(--border2);border-radius:6px;color:var(--text2);font-family:DM 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.mp-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;direction:auto}.mp-item .mp-add{background:var(--bg2);border:1px solid var(--border2);border-radius:4px;color:var(--accent);padding:3px 7px;font-size:11px;cursor:pointer;flex-shrink:0}.mp-item .mp-add:hover{background:var(--accent);color:#000}.mq-item{display:flex;align-items:center;gap:8px;padding:7px 10px;background:var(--bg2);border:1px solid var(--border);border-radius:5px;margin-bottom:3px;cursor:grab;font-size:var(--font-size);color:var(--text2);-webkit-user-select:none;user-select:none;transition:all .1s}.mq-item.dragging{opacity:.5;border-color:var(--accent)}.mq-item.drag-over{border-color:var(--accent);background:var(--accent-glow)}.mq-item .mq-num{font-size:10px;color:var(--text3);min-width:16px;text-align:center}.mq-item .mq-icon{font-size:var(--icon-size);flex-shrink:0}.mq-item .mq-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;direction:auto}.mq-item 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92px)}.viewer-actions{width:100%;flex-wrap:nowrap}.viewer-actions .btn-tool{flex-shrink:0}.pdf-body,.img-scroll-wrap{padding:8px}.pdf-canvas-wrap,.img-editor-wrap{box-shadow:0 4px 18px #00000080}.welcome-inner{max-width:92vw}.welcome-actions .btn-primary,.welcome-actions .btn-secondary{width:100%;justify-content:center}}@media (max-width:520px){:root{--font-size:12px;--icon-size:14px}#mobileTopBar{gap:8px;padding-left:10px;padding-right:10px}.mobile-title{font-size:14px}.mob-btn{height:32px;padding:0 8px;font-size:10px}.viewer-header{gap:6px}.viewer-actions{gap:5px}.viewer-actions .btn-tool,.pdf-toolbar .btn-tool{font-size:10px;padding:6px 8px}.file-content,.file-editor{font-size:12px;line-height:1.65;padding:12px}.modal{width:100%!important;max-height:94vh;border-radius:12px 12px 0 0}.modal-overlay{align-items:flex-end;padding:0}.drop-zone{padding:18px 12px}.scanner-stage{height:54vh;min-height:240px;border-radius:8px}.scanner-tabs{display:grid;grid-template-columns:1fr 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