:root{--bg-app:#0d1117;--bg-panel:#161b22;--bg-header:#010409;--bg-hover:#21262d;--border-color:#30363d;--text-primary:#e6edf3;--text-secondary:#8b949e;--accent:#0094c6;--accent-hover:#005e7c;--danger:#f85149;--success:#2ea043;--warning:#d29922;--overlay-bg:#000c;--toolbar-flyout-bg:#12161efa;--toolbar-btn-hover:#ffffff12;--toolbar-btn-active-bg:#0094c624;--toolbar-btn-active-color:#4dc8ee;--toolbar-btn-active-border:#0094c6;--toolbar-danger-hover:#f851491a;--toolbar-success-active-bg:#2ea0431f;--toolbar-success-border:#238636;--ctx-bar-bg:#0d1117f2;--ctx-tip-bg:#0d1117;--ctx-kb-bg:#21262d;--ctx-kb-border:#373e47;--toolbar-divider-color:#ffffff14;--bg-input:#161b22e6}.light{--bg-app:#f3f4f6;--bg-panel:#fff;--bg-header:#f9fafb;--bg-hover:#e5e7eb;--border-color:#d1d5db;--text-primary:#111827;--text-secondary:#6b7280;--accent:#0094c6;--accent-hover:#005e7c;--overlay-bg:#fff9;--toolbar-flyout-bg:#fffffffa;--toolbar-btn-hover:#0000000d;--toolbar-btn-active-bg:#0094c61a;--toolbar-btn-active-color:#0094c6;--toolbar-btn-active-border:#0094c6;--toolbar-danger-hover:#f8514914;--toolbar-success-active-bg:#2ea0431a;--toolbar-success-border:#1a7f37;--ctx-bar-bg:#f0f2f5f7;--ctx-tip-bg:#fff;--ctx-kb-bg:#e8eaed;--ctx-kb-border:#c4c9d1;--toolbar-divider-color:#0000001a;--bg-input:#fffffff2}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe 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a:hover{color:var(--text-primary)}.login-btn{border:1px solid var(--accent);color:var(--accent);cursor:pointer;background:0 0;border-radius:6px;padding:8px 20px;font-weight:600;transition:all .2s}.login-btn:hover{background:var(--accent);color:#fff}.hero-section{text-align:center;max-width:800px;margin:0 auto;padding:100px 20px}.hero-section h1{letter-spacing:-1px;margin-bottom:20px;font-size:48px;font-weight:800;line-height:1.2}.text-accent{color:var(--accent)}.hero-section p{color:var(--text-secondary);margin-bottom:40px;font-size:18px;line-height:1.6}.hero-buttons{justify-content:center;gap:16px;display:flex}.cta-btn{background:var(--accent);color:#fff;border-radius:8px;padding:14px 32px;font-size:16px;font-weight:600;text-decoration:none;transition:all .2s;box-shadow:0 4px 12px #2f81f74d}.cta-btn:hover{background:var(--accent-hover);transform:translateY(-2px)}.secondary-btn{background:var(--bg-panel);border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;border-radius:8px;padding:14px 32px;font-size:16px;font-weight:600;transition:all .2s}.secondary-btn:hover{background:var(--bg-hover)}.pricing-section{background:var(--bg-panel);text-align:center;border-top:1px solid var(--border-color);padding:80px 20px}.pricing-section h2{margin-bottom:10px;font-size:32px}.pricing-card{background:var(--bg-app);border:1px solid var(--border-color);text-align:left;border-radius:12px;max-width:400px;margin:40px auto;padding:40px;box-shadow:0 10px 30px #0000001a}.pricing-card h3{color:var(--text-secondary);margin-bottom:16px;font-size:20px}.pricing-card .price{color:var(--text-primary);margin-bottom:24px;font-size:48px;font-weight:800}.features-list{margin-bottom:32px;list-style:none}.features-list li{color:var(--text-secondary);align-items:center;gap:10px;margin-bottom:12px;display:flex}.features-list i{color:var(--success)}.paypal-container{z-index:1;margin-top:20px;position:relative}.auth-modal-overlay{background:var(--overlay-bg);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.auth-modal{background:var(--bg-panel);border:1px solid var(--border-color);width:100%;max-width:360px;color:var(--text-primary);border-radius:12px;padding:32px;box-shadow:0 10px 40px #0003}.auth-modal h2{margin-bottom:8px;font-size:24px}.auth-modal p{color:var(--text-secondary);margin-bottom:24px;font-size:14px}.auth-modal input{background:var(--bg-app);border:1px solid var(--border-color);width:100%;color:var(--text-primary);border-radius:6px;outline:none;margin-bottom:16px;padding:12px;font-size:14px;transition:all .2s}.auth-modal input:focus{border-color:var(--accent)}.submit-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:6px;width:100%;padding:12px;font-weight:600;transition:all .2s}.submit-btn:hover{background:var(--accent-hover)}.main-container{flex:1;display:flex;overflow:hidden}.left-panel{background:var(--bg-panel);border-right:1px solid var(--border-color);z-index:10;flex-direction:column;flex-shrink:0;width:320px;display:flex}.canvas-area{flex-direction:column;flex:1;min-width:0;display:flex;position:relative;overflow:hidden}.top-bar{background:var(--bg-header);border-bottom:1px solid var(--border-color);align-items:center;gap:6px;height:50px;padding:0 12px 0 8px;transition:all .3s;display:flex;box-shadow:0 2px 12px #0000002e}.light .top-bar{box-shadow:0 2px 6px #0000000f}.app-title{color:var(--accent);letter-spacing:-.5px;align-items:center;gap:8px;font-size:16px;font-weight:600;display:flex}.menu-group{align-items:center;gap:8px;display:flex}.menu-btn{background:var(--bg-panel);border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;border-radius:6px;align-items:center;gap:6px;padding:6px 12px;font-size:12px;font-weight:500;transition:all .2s;display:flex;box-shadow:0 1px 2px #0000000d}.menu-btn:hover:not(:disabled){background-color:var(--bg-hover);border-color:var(--text-secondary)}.menu-btn:disabled{opacity:.5;cursor:not-allowed}.menu-btn.icon-only{padding:6px 10px}.menu-btn.btn-blast{border-color:var(--success);color:var(--success);font-weight:600}.menu-btn.btn-blast:hover:not(:disabled){background-color:#2ea0431a}.menu-btn.btn-blast.active{color:var(--success);border-color:var(--success);background-color:#2ea04333}.divider{background:var(--border-color);width:1px;height:24px}@keyframes tb-dropdown-in{0%{opacity:0;transform:translateY(-6px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.dropdown-menu{transform-origin:top;animation:.14s forwards tb-dropdown-in}.tb-brand{cursor:default;border-radius:8px;flex-shrink:0;align-items:center;gap:0;padding:4px 8px;transition:background .2s;display:flex}.tb-brand:hover{background:var(--bg-hover)}.tb-brand-logo img{width:28px;height:28px;transition:transform .28s cubic-bezier(.34,1.56,.64,1)}.tb-brand:hover .tb-brand-logo img{transform:scale(1.12)rotate(-4deg)}.tb-brand-wordmark{letter-spacing:.4px;opacity:0;white-space:nowrap;max-width:0;padding-left:0;font-size:15px;font-weight:800;line-height:1;transition:max-width .38s cubic-bezier(.4,0,.2,1),opacity .28s,padding-left .38s;overflow:hidden}.tb-brand:hover .tb-brand-wordmark{opacity:1;max-width:90px;padding-left:8px}.tb-brand-blast{color:var(--text-primary)}.tb-brand-cad{color:var(--accent)}.menu-btn.active{background:var(--bg-hover);border-color:var(--accent);color:var(--accent)}.tb-wip-tag{color:var(--warning);letter-spacing:.4px;text-transform:uppercase;background:#d2992226;border:1px solid #d2992259;border-radius:3px;margin-left:auto;padding:1px 5px;font-size:9px;font-weight:700;line-height:1.6}.tb-sep{background:var(--border-color);flex-shrink:0;width:1px;height:22px}.tb-status-pill{color:var(--text-secondary);border:1px solid var(--border-color);white-space:nowrap;border-radius:999px;align-items:center;gap:6px;padding:3px 8px;font-size:11px;display:flex}.tb-status-dot{background:var(--success);border-radius:50%;flex-shrink:0;width:7px;height:7px;animation:1.8s ease-in-out infinite record-pulse}@keyframes record-pulse{0%,to{opacity:1;box-shadow:0 0 #2ea04380}50%{opacity:.7;box-shadow:0 0 0 5px #2ea04300}}.tb-user-area{border-left:1px solid var(--border-color);flex-shrink:0;align-items:center;gap:8px;padding-left:12px;display:flex}.tb-avatar{background:var(--accent);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:26px;height:26px;font-size:12px;font-weight:700;display:flex}.tb-user-email{color:var(--text-secondary);text-overflow:ellipsis;white-space:nowrap;max-width:160px;font-size:12px;overflow:hidden}.menu-btn.admin-btn{color:var(--danger);border-color:var(--danger)}.menu-btn.admin-btn:hover{background:#f8514914}.menu-btn.save-btn{color:var(--success);border-color:color-mix(in srgb, var(--success) 40%, transparent)}.menu-btn.save-btn:hover{background:#2ea04314}.user-profile-group{border-left:1px solid var(--border-color);align-items:center;gap:12px;margin-left:auto;padding-left:20px;display:flex}.user-greeting{color:var(--text-primary);cursor:pointer;align-items:center;gap:8px;font-size:13px;font-weight:600;transition:color .2s;display:flex}.user-greeting i{color:var(--accent);font-size:18px}.user-greeting:hover{color:var(--accent)}.logout-btn:hover{color:var(--danger);border-color:var(--danger);background:#f851491a}.panel-tabs{border-bottom:1px solid var(--border-color);background:var(--bg-header);display:flex}.tab-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;flex:1;justify-content:center;align-items:center;gap:6px;padding:12px 0;font-size:12px;font-weight:500;transition:all .2s;display:flex}.tab-btn:hover{color:var(--text-primary)}.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent);background:var(--bg-panel)}.panel-content{flex-direction:column;flex:1;gap:12px;padding:16px;display:flex;overflow-y:auto}.prop-group{background:var(--bg-app);border:1px solid var(--border-color);color:var(--text-primary);border-radius:6px;padding:12px}.prop-header{text-transform:uppercase;color:var(--text-secondary);letter-spacing:.5px;margin-bottom:10px;font-size:10px;font-weight:600}.prop-row{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:6px 0;font-size:12px;display:flex}.prop-row:last-child{border-bottom:none;padding-bottom:0}.prop-row input{background:var(--bg-panel);border:1px solid var(--border-color);color:var(--text-primary);text-align:right;border-radius:4px;outline:none;width:80px;padding:4px 8px;font-size:12px}.prop-row input:focus{border-color:var(--accent)}.explorer-toolbar{gap:6px;margin-bottom:8px;display:flex}.search-box{background:var(--bg-app);border:1px solid var(--border-color);border-radius:6px;flex:1;align-items:center;padding:0 8px;transition:border-color .2s;display:flex;position:relative}.search-box:focus-within{border-color:var(--accent)}.search-box input{color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;width:100%;padding:8px;font-size:12px}.clear-search{cursor:pointer;color:var(--text-secondary);font-size:12px;transition:all .2s}.clear-search:hover{color:var(--danger)}.icon-btn{background:var(--bg-app);border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;border-radius:6px;padding:0 12px;transition:all .2s}.icon-btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}.cad-full-btn{background:var(--bg-app);border:1px dashed var(--border-color);width:100%;color:var(--text-secondary);cursor:pointer;border-radius:6px;padding:12px;font-size:12px;font-weight:500;transition:all .2s}.cad-full-btn:hover{background:var(--bg-hover);color:var(--accent);border-color:var(--accent);border-style:solid}.cad-layer-tree{flex-direction:column;gap:4px;display:flex}.layer-group{border:1px solid var(--border-color);background:var(--bg-app);border-radius:6px;flex-direction:column;display:flex;overflow:hidden}.layer-group.drag-over{border-color:var(--accent);box-shadow:0 0 0 2px #2f81f733}.tree-item{background:var(--bg-panel);justify-content:space-between;align-items:center;padding:6px 8px;transition:background .2s;display:flex}.tree-item:hover{background:var(--bg-hover)}.tree-item.layer-hidden{opacity:.6;background:var(--bg-app)}.tree-item.layer-hidden .layer-name{text-decoration:line-through}.tree-item-left{flex:1;align-items:center;gap:6px;display:flex;overflow:hidden}.expand-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;width:16px;padding:2px 4px;font-size:10px}.expand-btn:hover{color:var(--accent)}.layer-checkbox{cursor:pointer;width:14px;height:14px;accent-color:var(--accent)}.layer-name{white-space:nowrap;text-overflow:ellipsis;cursor:default;flex:1;min-width:0;font-size:12px;font-weight:600;overflow:hidden}.rename-input{background:var(--bg-panel);border:1px solid var(--accent);color:var(--text-primary);border-radius:4px;outline:none;flex:1;min-width:0;padding:2px 4px;font-size:12px}.layer-badge{background:var(--bg-panel);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:10px;padding:2px 6px;font-size:10px;font-weight:600}.type-icon-csv{color:var(--danger);font-size:12px}.type-icon-dtm{color:var(--success);font-size:12px}.type-icon-custom{color:var(--warning);font-size:12px}.tree-item-actions{opacity:0;flex-shrink:0;gap:2px;max-width:0;transition:max-width .15s,opacity .15s;display:flex;overflow:hidden}.tree-item:hover .tree-item-actions{opacity:1;max-width:160px}.tree-item-actions button{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:4px;font-size:11px}.tree-item-actions button:hover{background:var(--bg-hover);color:var(--accent)}.tree-item-actions button.danger:hover{color:var(--danger)}.layer-children{border-top:1px solid var(--border-color);background:#0003;max-height:60vh;overflow-y:auto}.light .layer-children{background:#00000008}.light .layer-name{color:var(--text-primary)}.bulk-actions{color:var(--text-secondary);border-bottom:1px solid var(--border-color);background:var(--bg-hover);justify-content:flex-end;gap:8px;padding:6px 12px;font-size:10px;display:flex}.bulk-actions button{color:var(--accent);cursor:pointer;background:0 0;border:none;font-size:10px}.bulk-actions button:hover{text-decoration:underline}.child-item{color:var(--text-secondary);border-bottom:1px solid var(--border-color);align-items:center;gap:8px;padding:4px 10px 4px 24px;font-size:11px;display:flex}.child-item:last-child{border-bottom:none}.child-item:hover{background:var(--bg-hover);color:var(--text-primary)}.child-item.selected{color:var(--accent);border-left:2px solid var(--accent);background:#2f81f71a;padding-left:22px}.child-item.child-hidden{opacity:.5}.child-item.child-hidden .child-content span{text-decoration:line-through}.drag-handle{cursor:grab;opacity:.3;padding-right:4px;font-size:12px;transition:all .2s}.child-item:hover .drag-handle{opacity:1}.child-content{cursor:pointer;white-space:nowrap;text-overflow:ellipsis;flex:1;align-items:center;gap:6px;display:flex;overflow:hidden}#app.section-active .scene-viewer canvas{cursor:crosshair}#app.tool-select .scene-viewer canvas{cursor:crosshair!important}#app.tool-pan .scene-viewer canvas{cursor:grab!important}#app.tool-pan .scene-viewer canvas:active{cursor:grabbing!important}#app.tool-section .scene-viewer canvas,#app[class*=tool-draw] .scene-viewer canvas,#app.tool-measure .scene-viewer canvas,#app.tool-measure_angle .scene-viewer canvas,#app.tool-dimension .scene-viewer canvas,#app.tool-edit_move .scene-viewer canvas,#app.tool-edit_rotate .scene-viewer canvas,#app.tool-edit_scale .scene-viewer canvas,#app.tool-edit_mirror .scene-viewer canvas,#app.tool-edit_offset .scene-viewer canvas,#app.tool-edit_trim .scene-viewer canvas,#app.tool-edit_extend .scene-viewer canvas{cursor:crosshair!important}#app[class*=tool-draw],#app.tool-measure,#app.tool-measure_angle,#app.tool-dimension,#app.tool-edit_move,#app.tool-edit_rotate,#app.tool-edit_scale,#app.tool-edit_mirror,#app.tool-edit_offset,#app.tool-edit_trim,#app.tool-edit_extend{cursor:crosshair}.cad-crosshair-root{-webkit-user-select:none;user-select:none;pointer-events:none}.cad-popup{background:var(--bg-panel);border:1px solid var(--accent);pointer-events:auto;border-radius:8px;flex-direction:column;gap:6px;width:180px;padding:8px;display:flex;transform:translate(-50%,-110%);box-shadow:0 8px 32px #0003}.cad-popup-title{color:var(--text-secondary);text-transform:uppercase;text-align:center;border-bottom:1px solid var(--border-color);margin-bottom:4px;padding-bottom:6px;font-size:11px;font-weight:700}.cad-popup-input{background:var(--bg-app);border:1px solid var(--border-color);color:var(--text-primary);border-radius:4px;outline:none;width:100%;margin-bottom:8px;padding:6px;font-size:12px}.cad-popup-input:focus{border-color:var(--accent)}.cad-popup-btn{background:var(--bg-app);border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;border-radius:4px;align-items:center;gap:8px;padding:8px 10px;font-size:12px;font-weight:500;transition:all .2s;display:flex}.cad-popup-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.cad-popup-btn.cancel{color:var(--text-secondary);background:0 0;border-color:#0000;justify-content:center;margin-top:2px;padding:4px;font-size:11px}.cad-popup-btn.cancel:hover{background:var(--danger);color:#fff}.live-slice-controller{background:var(--bg-panel);border:1px solid var(--accent);z-index:10;opacity:.95;border-radius:8px;flex-direction:column;gap:8px;width:180px;padding:12px;display:flex;position:absolute;bottom:24px;right:24px;box-shadow:0 8px 32px #0003}.slice-row{color:var(--text-primary);justify-content:space-between;align-items:center;font-size:11px;display:flex}.slice-input{background:var(--bg-app);border:1px solid var(--border-color);color:var(--text-primary);text-align:right;border-radius:4px;outline:none;width:60px;padding:4px 6px;font-size:11px}.slice-input:focus{border-color:var(--accent)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.drag-select-box{border:1px solid var(--accent);pointer-events:none;z-index:100;background:#2f81f726;position:absolute}.canvas-tooltip{background:var(--bg-panel);border:1px solid var(--border-color);color:var(--text-primary);pointer-events:none;z-index:50;border-radius:6px;padding:6px 10px;font-size:11px;position:absolute;transform:translate(15px,15px);box-shadow:0 4px 12px #00000026}.quick-delay-box{background:var(--accent);color:#fff;pointer-events:auto;border-radius:6px;align-items:center;gap:6px;padding:4px 8px;display:flex;box-shadow:0 4px 12px #0000004d}.quick-delay-box input{color:#fff;text-align:center;background:#0003;border:none;border-radius:4px;outline:none;width:50px;padding:2px;font-weight:700}.quick-delay-box input::-webkit-inner-spin-button{-webkit-appearance:none}.project-settings-modal{background:var(--bg-panel);border:1px solid var(--border-color);width:100%;max-width:700px;max-height:85vh;color:var(--text-primary);border-radius:12px;flex-direction:column;display:flex;overflow:hidden;box-shadow:0 10px 40px #0003}.modal-header{border-bottom:1px solid var(--border-color);background:var(--bg-header);justify-content:space-between;align-items:center;padding:20px;display:flex}.modal-header h2{color:var(--text-primary);align-items:center;gap:8px;margin:0;font-size:18px;font-weight:600;display:flex}.modal-header .debug-btn-clear{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;padding:4px;font-size:18px;transition:all .2s}.modal-header .debug-btn-clear:hover{color:var(--text-primary);transform:scale(1.1)}.modal-tabs{border-bottom:1px solid var(--border-color);background:var(--bg-header);gap:4px;padding:8px 16px;display:flex;overflow-x:auto}.modal-tab-btn{min-width:140px;color:var(--text-secondary);cursor:pointer;text-transform:uppercase;letter-spacing:.3px;background:0 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