:root,[data-theme=dark]{--bg:#0f1115;--surface:#141720;--surface2:#1a1d24;--node-bg:#1e222a;--border:#2a2e38;--text:#d8dae0;--text-dim:#8b8f9a;--accent:#c4a8b8;--accent-hover:#b397a7;--source-color:#c9504a;--converter-color:#3578a0;--series-color:#4aa876;--load-color:#d4a24e;--danger:#c9504a;--shadow-node:#0009;--shadow-node-hover:#000c;--overlay-bg:#00000080;--digitizer-overlay:#000c;--analysis-bg:#00000040;--analysis-border:#ffffff0f;--edge-label-bg:#1e222a;--handle-border:var(--surface);--handle-hover-bg:#fff}[data-theme=light]{--bg:#f5f0e8;--surface:#ede8df;--surface2:#e6e0d6;--node-bg:#fefcf8;--border:#d5cebc;--text:#2c2a26;--text-dim:#7a7568;--accent:#c4a8b8;--accent-hover:#b397a7;--source-color:#c9504a;--converter-color:#3578a0;--series-color:#4aa876;--load-color:#d4a24e;--danger:#c9504a;--shadow-node:#00000014;--shadow-node-hover:#00000024;--overlay-bg:#0000004d;--digitizer-overlay:#00000080;--analysis-bg:#0000000a;--analysis-border:#00000014;--edge-label-bg:#fefcf8;--handle-border:var(--surface);--handle-hover-bg:#333}*{box-sizing:border-box;margin:0;padding:0;font-family:Space 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h2{text-transform:uppercase;letter-spacing:.06em;color:var(--text-dim);font-size:12px;font-weight:600}.sidebar-hint{color:var(--text-dim);margin-bottom:2px;font-size:11px}.sidebar-item{border:1px solid var(--border);cursor:grab;background:var(--surface2);border-radius:4px;padding:10px;transition:border-color .1s}.sidebar-item:hover{border-color:var(--text-dim)}.sidebar-item:active{cursor:grabbing}.sidebar-item-label{margin-bottom:2px;font-size:13px;font-weight:600}.sidebar-item-desc{color:var(--text-dim);font-size:11px}.sidebar-item.source{border-left:3px solid var(--source-color)}.sidebar-item.converter{border-left:3px solid var(--converter-color)}.sidebar-item.series{border-left:3px solid var(--series-color)}.sidebar-item.load{border-left:3px solid var(--load-color)}.sidebar-item.group{border-left:3px solid var(--border)}.sidebar-item.text{border-left:3px solid var(--text-dim)}.sidebar-spacer{flex:1}.notes-drawer-overlay{display:none}.notes-drawer-overlay.open{z-index:49;display:block;position:fixed;inset:0}.notes-drawer-container{z-index:50;display:flex;position:absolute;top:0;bottom:0;left:200px}.notes-drawer-tab{cursor:pointer;width:20px;height:44px;color:var(--text-dim);z-index:51;background:0 0;border:none;justify-content:center;align-items:center;padding:0;font-size:11px;transition:color .2s;display:flex;position:absolute;top:120px;right:-20px;overflow:visible}.notes-drawer-tab:before{content:"";background:var(--surface2);border:1px solid var(--border);transform-origin:0;z-index:-1;border-left:none;border-radius:0 7px 7px 0;transition:background 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8px;display:flex}.notes-drawer-title{text-transform:uppercase;letter-spacing:.06em;color:var(--text-dim);font-size:12px;font-weight:600}.notes-drawer-close{color:var(--text-dim);cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:18px;line-height:1}.notes-drawer-close:hover{color:var(--text)}.notes-drawer-body{flex-direction:column;flex:1;gap:8px;min-width:280px;padding:8px 12px;display:flex;overflow-y:auto}.notes-textarea{border:1px solid var(--border);background:var(--node-bg);width:100%;min-height:80px;color:var(--text);resize:none;box-sizing:border-box;border-radius:4px;padding:8px 10px;font-family:inherit;font-size:12px;line-height:1.6;overflow:hidden}.notes-textarea:focus{border-color:var(--text-dim);background:var(--node-bg);outline:none}.notes-textarea::placeholder{color:var(--text-dim);font-size:11px}.notes-textarea-wrap{position:relative}.mention-dropdown{z-index:100;background:var(--surface2);border:1px solid 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.15s}.project-name-input:hover{border-color:var(--border);background:var(--surface2)}.project-name-input:focus{border-color:var(--accent);background:var(--surface2)}.toolbar-actions{align-items:center;gap:6px;display:flex}.toolbar-btn{cursor:pointer;border:1px solid var(--border);background:var(--surface2);color:var(--text);border-radius:4px;padding:6px 12px;font-size:12px;font-weight:500;transition:all .1s}.toolbar-btn:hover:not(:disabled){border-color:var(--text-dim)}.toolbar-btn:disabled{opacity:.4;cursor:not-allowed}.analyze-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:4px;padding:6px 16px;font-size:13px;font-weight:600;transition:background .1s}.analyze-btn:hover:not(:disabled){background:var(--accent-hover)}.analyze-btn:disabled{opacity:.4;cursor:not-allowed}.flow-container{flex:1;position:relative}.heatmap-scale{z-index:5;pointer-events:none;flex-direction:column;align-items:center;gap:4px;display:flex;position:absolute;bottom:16px;right:16px}.heatmap-scale-bar{border:1px solid var(--border);border-radius:4px;width:14px;height:120px}.heatmap-scale-label{color:var(--text-dim);font-size:10px;font-weight:600}.react-flow__node{box-shadow:none!important;background:0 0!important;border:none!important}.react-flow__controls{overflow:hidden;background:var(--surface)!important;border:1px solid var(--border)!important;border-radius:4px!important}.react-flow__controls-button{background:var(--surface)!important;border-bottom:1px solid var(--border)!important;fill:var(--text-dim)!important}.react-flow__controls-button:hover{background:var(--surface2)!important}.react-flow__edge.animated path{animation-duration:1.5s!important}.react-flow__selection{border:1px solid var(--accent)!important;background:#7b6f8a14!important;border-radius:2px!important}.react-flow__handle{background:var(--accent)!important;border:2px solid var(--handle-border)!important;border-radius:50%!important;width:12px!important;height:12px!important}.react-flow__handle:hover{background:var(--handle-hover-bg)!important;width:14px!important;height:14px!important}.power-node{background:var(--node-bg);min-width:150px;box-shadow:0 2px 10px var(--shadow-node);border:none;border-radius:6px;overflow:hidden}.power-node:hover{box-shadow:0 2px 14px var(--shadow-node-hover)}.react-flow__node.selected .power-node{outline:2px solid var(--accent);outline-offset:1px}.node-header{text-transform:uppercase;letter-spacing:.06em;padding:5px 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var(--border);background:var(--surface2);width:24px;height:24px;color:var(--text-dim);cursor:pointer;border-radius:3px;justify-content:center;align-items:center;font-size:12px;transition:all .1s;display:flex}.close-btn:hover{background:var(--danger);color:#fff;border-color:var(--danger)}.config-body{flex:1;padding:12px;overflow:hidden auto}.config-footer{border-top:1px solid var(--border);padding:12px}.delete-btn{border:1px solid var(--danger);width:100%;color:var(--danger);cursor:pointer;background:0 0;border-radius:4px;padding:6px;font-size:12px;font-weight:500;transition:all .1s}.delete-btn:hover{background:var(--danger);color:#fff}.config-fields{flex-direction:column;gap:12px;display:flex}.config-fields label{color:var(--text-dim);flex-direction:column;gap:3px;font-size:11px;font-weight:500;display:flex}.config-fields input,.config-fields select{border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:3px;outline:none;padding:6px 8px;font-size:13px;transition:border-color .1s}.config-fields input:focus,.config-fields select:focus{border-color:var(--accent)}.toggle-label{justify-content:space-between;flex-direction:row!important;align-items:center!important}.toggle-btn{cursor:pointer;border:1px solid var(--border);letter-spacing:.05em;border-radius:4px;padding:4px 14px;font-size:11px;font-weight:700;transition:all .15s}.toggle-btn.on{background:var(--series-color);color:#111;border-color:var(--series-color)}.toggle-btn.off{background:var(--surface2);color:var(--text-dim);border-color:var(--border)}.toggle-btn.off:hover{border-color:var(--text-dim)}.config-fields select{appearance:none;cursor:pointer}.pulse-duty-fields{flex-direction:column;gap:12px;display:flex}.config-slider-field .config-slider-label{color:var(--text-dim);margin-bottom:4px;font-size:11px;font-weight:500;display:block}.slider-bounds-row{align-items:center;gap:4px;margin-bottom:4px;display:flex}.slider-bound-input{border:1px solid var(--border);background:var(--bg);width:72px;color:var(--text-dim);text-align:center;border-radius:3px;outline:none;padding:3px 6px;font-size:11px}.slider-bound-input:focus{border-color:var(--accent);color:var(--text)}.slider-bounds-sep{color:var(--text-dim);font-size:11px}.config-slider-row{align-items:center;gap:10px;width:100%;display:flex}.config-interval-slider{appearance:none;cursor:pointer;background:0 0;flex:1;min-width:88px;height:20px;margin:0;padding:0}.config-interval-slider:focus{outline:none}.config-interval-slider:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}.config-interval-slider::-webkit-slider-runnable-track{background:linear-gradient(to right, var(--accent) 0%, var(--accent) var(--range-pct,50%), var(--border) var(--range-pct,50%), var(--border) 100%);border-radius:2px;height:4px}.config-interval-slider::-webkit-slider-thumb{appearance:none;border:2.5px solid var(--accent);background:#fff;border-radius:50%;width:18px;height:18px;margin-top:-7px;transition:box-shadow .1s;box-shadow:0 1px 6px #00000059}.config-interval-slider:active::-webkit-slider-thumb{box-shadow:0 0 0 4px #c4a8b840,0 1px 6px #00000059}.config-interval-slider::-moz-range-track{background:var(--surface2);border-radius:2px;height:4px}.config-interval-slider::-moz-range-progress{background:var(--accent);border-radius:2px;height:4px}.config-interval-slider::-moz-range-thumb{border:2.5px solid var(--accent);background:#fff;border-radius:50%;width:16px;height:16px;box-shadow:0 1px 6px #00000059}.config-interval-slider:active::-moz-range-thumb{box-shadow:0 0 0 4px #c4a8b840,0 1px 6px #00000059}.eff-section{margin-top:4px}.eff-section h4{color:var(--text);margin-bottom:6px;font-size:12px;font-weight:600}.eff-upload{flex-direction:column;gap:4px;margin-bottom:8px;display:flex}.file-label,button.file-label{background:var(--surface2);border:1px solid var(--border);cursor:pointer;border-radius:3px;padding:5px 10px;font-family:inherit;font-size:11px;transition:border-color .1s;display:inline-flex;color:var(--text)!important;font-weight:500!important}.file-label:hover,button.file-label:hover{border-color:var(--accent)}.file-label input[type=file]{display:none}.upload-hint{color:var(--text-dim);font-size:10px}.eff-table{max-height:160px;margin-bottom:6px;overflow-y:auto}.eff-row{border-bottom:1px solid var(--border);grid-template-columns:1fr 1fr 28px;align-items:center;gap:6px;padding:3px 0;font-size:12px;display:grid}.eff-row.header{color:var(--text-dim);text-transform:uppercase;border-bottom:2px solid var(--border);font-size:10px;font-weight:600}.inline-num{cursor:pointer;border-radius:3px;padding:1px 4px;transition:background .1s}.inline-num:hover{background:var(--border)}.inline-num-input{border:1px solid var(--accent);background:var(--bg);width:100%;color:var(--text);box-sizing:border-box;border-radius:3px;outline:none;padding:1px 4px;font-size:12px}.dur-cell{color:var(--text-dim);font-size:11px}.remove-btn{width:22px;height:22px;color:var(--text-dim);cursor:pointer;background:0 0;border:none;border-radius:3px;font-size:11px;transition:all .1s}.remove-btn:hover{background:var(--danger);color:#fff}.eff-add{grid-template-columns:1fr 1fr auto;align-items:center;gap:4px;display:grid}.eff-add input{border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:3px;outline:none;min-width:0;padding:5px 6px;font-size:12px}.eff-add input:focus{border-color:var(--accent)}.eff-add button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:3px;padding:5px 10px;font-size:12px;font-weight:500;transition:background .1s}.eff-add button:hover{background:var(--accent-hover)}.results-panel{background:var(--surface);border-left:1px solid var(--border);flex-direction:column;width:460px;min-width:460px;display:flex;overflow-y:auto}.results-summary{grid-template-columns:1fr 1fr;gap:8px;padding:12px;display:grid}.result-card{background:var(--bg);border:1px solid var(--border);text-align:center;border-radius:4px;padding:10px}.result-value{color:var(--text);font-size:18px;font-weight:700}.result-label{color:var(--text-dim);text-transform:uppercase;letter-spacing:.04em;margin-top:2px;font-size:10px}.chart-section{border-top:1px solid var(--border);padding:12px;overflow:visible}.chart-section .recharts-wrapper,.chart-section .recharts-surface{overflow:visible!important}.pie-chart-container{align-items:center;gap:12px;display:flex}.pie-svg{flex-shrink:0;width:160px;height:160px}.pie-svg path{cursor:pointer;transition:opacity .15s}.pie-svg path:hover{opacity:.8}.pie-legend{flex-direction:column;gap:6px;min-width:0;display:flex}.pie-legend-item{color:var(--text);align-items:center;gap:6px;font-size:11px;display:flex}.pie-legend-swatch{border-radius:2px;flex-shrink:0;width:10px;height:10px}.pie-legend-label{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.pie-legend-value{color:var(--text-dim);white-space:nowrap;flex-shrink:0;margin-left:auto}.chart-section h4{margin-bottom:8px;font-size:12px;font-weight:600}.chart-header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.chart-header h4{margin-bottom:0}.zoom-reset-btn{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;opacity:.8;border-radius:4px;padding:2px 8px;font-size:10px}.zoom-reset-btn:hover{opacity:1;background:var(--border)}.node-details{border-top:1px solid var(--border);padding:12px}.node-details h4{margin-bottom:8px;font-size:12px;font-weight:600}.results-table{border-collapse:collapse;width:100%;font-size:11px}.results-table th{text-align:left;border-bottom:2px solid var(--border);color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em;white-space:nowrap;padding:4px 8px;font-size:9px;font-weight:600}.results-table td{border-bottom:1px solid var(--border);white-space:nowrap;padding:4px 8px}.results-table .loss-cell{color:#c9504a}.results-table td:first-child{text-overflow:ellipsis;white-space:nowrap;max-width:140px;overflow:hidden}.results-table th:nth-child(2),.results-table td:nth-child(2){text-align:center}.type-badge{text-transform:uppercase;white-space:nowrap;border-radius:2px;padding:1px 5px;font-size:9px;font-weight:600;display:inline-block}.type-badge.source{background:var(--source-color);color:#fff}.type-badge.converter{background:var(--converter-color);color:#fff}.type-badge.series{background:var(--series-color);color:#111}.type-badge.load{background:var(--load-color);color:#111}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}::-webkit-scrollbar-thumb:hover{background:var(--text-dim)}.analysis-badge{border-top:1px solid var(--analysis-border);background:var(--analysis-bg);padding:5px 10px 6px}.analysis-row{justify-content:space-between;align-items:center;padding:1px 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