:root{--bg-primary:#f8fafc;--bg-sidebar:#fff;--bg-canvas:#fff;--bg-toolbar:#fff;--border-color:#e2e8f0;--border-light:#f1f5f9;--text-primary:#1e293b;--text-secondary:#64748b;--text-muted:#94a3b8;--accent:#3b82f6;--accent-hover:#2563eb;--accent-light:#eff6ff;--danger:#ef4444;--danger-hover:#dc2626;--success:#22c55e;--warning:#f59e0b;--sidebar-width:300px;--toolbar-height:48px;--statusbar-height:32px;--header-height:56px;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", "Fira Code", "Consolas", monospace}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;font-family:var(--font-sans);color:var(--text-primary);background:var(--bg-primary);font-size:13px;overflow:hidden}.app{flex-direction:column;width:100%;height:100%;display:flex}.app-header{height:var(--header-height);background:var(--bg-toolbar);border-bottom:1px solid var(--border-color);z-index:100;flex-shrink:0;align-items:center;gap:12px;padding:0 16px;display:flex}.app-header .logo{color:var(--accent);align-items:center;gap:8px;font-size:16px;font-weight:700;display:flex}.app-header .logo svg{width:28px;height:28px}.app-header .header-actions{align-items:center;gap:8px;margin-left:auto;display:flex}.app-body{flex:1;display:flex;overflow:hidden}.app-statusbar{height:var(--statusbar-height);background:var(--bg-toolbar);border-top:1px solid var(--border-color);color:var(--text-secondary);flex-shrink:0;align-items:center;gap:24px;padding:0 16px;font-size:11px;display:flex}.app-statusbar .status-item{align-items:center;gap:4px;display:flex}.sidebar{width:var(--sidebar-width);background:var(--bg-sidebar);border-right:1px solid var(--border-color);flex-direction:column;flex-shrink:0;display:flex;overflow:hidden}.sidebar.right{border-right:none;border-left:1px solid var(--border-color)}.sidebar-tabs{border-bottom:1px solid var(--border-color);flex-shrink:0;display:flex}.sidebar-tab{cursor:pointer;color:var(--text-secondary);background:0 0;border:none;border-bottom:2px solid #0000;flex:1;padding:10px 16px;font-size:13px;font-weight:500;transition:all .15s}.sidebar-tab:hover{color:var(--text-primary);background:var(--accent-light)}.sidebar-tab.active{color:var(--accent);border-bottom-color:var(--accent)}.sidebar-content{flex:1;padding:16px;overflow-y:auto}.sidebar-section{margin-bottom:20px}.sidebar-section-header{cursor:pointer;-webkit-user-select:none;user-select:none;justify-content:space-between;align-items:center;padding:8px 0;display:flex}.sidebar-section-title{color:var(--text-primary);font-size:13px;font-weight:600}.sidebar-section-toggle{color:var(--text-muted);font-size:10px;transition:transform .2s}.sidebar-section-toggle.collapsed{transform:rotate(-90deg)}.form-group{margin-bottom:12px}.form-label{color:var(--text-secondary);margin-bottom:4px;font-size:11px;font-weight:500;display:block}.form-row{align-items:center;gap:8px;display:flex}.form-row .form-group{flex:1}.form-input{border:1px solid var(--border-color);width:100%;font-size:13px;font-family:var(--font-sans);color:var(--text-primary);background:#fff;border-radius:6px;outline:none;padding:6px 10px;transition:border-color .15s}.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #3b82f61a}.form-input:disabled{background:var(--bg-primary);color:var(--text-muted)}.form-input-sm{padding:4px 8px;font-size:12px}.form-input-with-unit{position:relative}.form-input-with-unit input{padding-right:28px}.form-input-with-unit .unit{color:var(--text-muted);pointer-events:none;font-size:11px;position:absolute;top:50%;right:8px;transform:translateY(-50%)}.form-select{border:1px solid var(--border-color);width:100%;font-size:13px;font-family:var(--font-sans);color:var(--text-primary);cursor:pointer;background:#fff;border-radius:6px;outline:none;padding:6px 10px}.form-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #3b82f61a}.form-slider{appearance:none;background:var(--border-color);border-radius:2px;outline:none;width:100%;height:4px}.form-slider::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);cursor:pointer;border:2px solid #fff;border-radius:50%;width:16px;height:16px;box-shadow:0 1px 3px #0003}.form-checkbox{cursor:pointer;align-items:center;gap:8px;font-size:13px;display:flex}.form-checkbox input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}.form-color{align-items:center;gap:8px;display:flex}.form-color input[type=color]{border:1px solid var(--border-color);cursor:pointer;border-radius:4px;width:32px;height:28px;padding:2px}.form-color .color-label{color:var(--text-secondary);font-size:12px}.btn{border:1px solid var(--border-color);font-size:13px;font-weight:500;font-family:var(--font-sans);cursor:pointer;color:var(--text-primary);white-space:nowrap;background:#fff;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:8px 16px;transition:all .15s;display:inline-flex}.btn:hover{background:var(--bg-primary);border-color:var(--text-muted)}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-danger{color:var(--danger);border-color:var(--danger);background:#fff}.btn-danger:hover{background:var(--danger);color:#fff}.btn-success{background:var(--success);color:#fff;border-color:var(--success)}.btn-success:hover{background:#16a34a}.btn-sm{border-radius:6px;padding:4px 10px;font-size:12px}.btn-icon{border-radius:8px;width:36px;height:36px;padding:0}.btn-icon.active{background:var(--accent-light);color:var(--accent);border-color:var(--accent)}.btn-block{width:100%}.canvas-toolbar{height:var(--toolbar-height);background:var(--bg-toolbar);border-bottom:1px solid var(--border-color);flex-shrink:0;align-items:center;gap:4px;padding:0 12px;display:flex}.toolbar-separator{background:var(--border-color);width:1px;height:24px;margin:0 8px}.toolbar-group{align-items:center;gap:2px;display:flex}.toolbar-label{color:var(--text-secondary);margin:0 4px;font-size:12px}.canvas-container{background:var(--bg-canvas);flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.canvas-viewport{cursor:default;flex:1;position:relative;overflow:hidden}.canvas-viewport.pan-mode{cursor:grab}.canvas-viewport.pan-mode.panning{cursor:grabbing}.canvas-viewport svg{display:block}.drawing-street,.drawing-sidewalk{cursor:default}.drawing-pipeline-circle{cursor:pointer;transition:filter .1s}.drawing-pipeline-circle:hover{filter:brightness(1.1)}.drawing-pipeline-circle.selected{filter:drop-shadow(0 0 4px #3b82f699)}.drawing-pipeline-circle.dragging{cursor:grabbing}.drawing-handle{cursor:ew-resize;opacity:0;transition:opacity .15s}.drawing-handle:hover,.drawing-handle.active{opacity:1}.drawing-dimension-arrow{cursor:pointer}.properties-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;display:flex}.properties-title{font-size:15px;font-weight:600}.properties-close{cursor:pointer;color:var(--text-muted);background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;width:28px;height:28px;font-size:18px;display:flex}.properties-close:hover{background:var(--bg-primary);color:var(--text-primary)}.properties-section-title{border-bottom:1px solid var(--border-light);margin-bottom:12px;padding-bottom:4px;font-size:13px;font-weight:600}.pipeline-list-item{border:1px solid var(--border-color);cursor:pointer;border-radius:6px;align-items:center;gap:8px;margin-bottom:6px;padding:8px;transition:all .15s;display:flex}.pipeline-list-item:hover,.pipeline-list-item.selected{background:var(--accent-light);border-color:var(--accent)}.pipeline-list-item .pipeline-color-dot{border-radius:50%;flex-shrink:0;width:12px;height:12px}.pipeline-list-item .pipeline-info{flex:1;min-width:0}.pipeline-list-item .pipeline-name{white-space:nowrap;text-overflow:ellipsis;font-size:12px;font-weight:500;overflow:hidden}.pipeline-list-item .pipeline-detail{color:var(--text-muted);font-size:11px}.pipeline-list-item .pipeline-delete{cursor:pointer;color:var(--text-muted);opacity:0;background:0 0;border:none;border-radius:4px;padding:2px 4px;font-size:14px;transition:all .15s}.pipeline-list-item:hover .pipeline-delete{opacity:1}.pipeline-list-item .pipeline-delete:hover{color:var(--danger);background:#fef2f2}.zoom-controls{align-items:center;gap:4px;margin-left:auto;display:flex}.zoom-controls .zoom-btn{border:1px solid var(--border-color);cursor:pointer;width:24px;height:24px;color:var(--text-secondary);background:#fff;border-radius:4px;justify-content:center;align-items:center;font-size:14px;display:flex}.zoom-controls .zoom-btn:hover{background:var(--bg-primary);color:var(--text-primary)}.zoom-controls .zoom-value{text-align:center;min-width:40px;font-size:12px;font-weight:500}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.modal-overlay{z-index:1000;background:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:#fff;border-radius:12px;min-width:400px;max-width:600px;padding:24px;box-shadow:0 20px 60px #0003}.modal-title{margin-bottom:16px;font-size:18px;font-weight:600}.modal-actions{justify-content:flex-end;gap:8px;margin-top:20px;display:flex}