:root{color-scheme:light;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.4}*{box-sizing:border-box}body{margin:0;background:#f8f8f8;color:#111}#root{min-height:100vh}.app-shell{display:flex;flex-direction:column;min-height:100vh}.toolbar{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:#fff;border-bottom:1px solid #e2e2e2;gap:16px;flex-wrap:wrap}.toolbar-group{display:flex;gap:8px}.toolbar button{padding:8px 14px;border-radius:6px;border:1px solid #c7c7c7;background:#fff;cursor:pointer;font-size:14px}.toolbar button:hover{border-color:#999}.hidden-input{display:none}.app-layout{display:flex;flex:1;overflow:hidden}.canvas-container{position:relative;flex:1;overflow:auto;background:#f0f0f0;padding:32px}.canvas-svg{background:transparent}.add-handle rect{cursor:pointer}.add-handle rect:hover{fill:#0041c4;stroke:#0041c4}.node-control rect{cursor:pointer}.node-control rect:hover{fill:#0041c4;stroke:#0041c4}.node-text{font-size:16px;fill:#111;font-family:Inter,system-ui,sans-serif}.node-count{font-weight:600}.exclusion-text{font-size:16px;fill:#111;font-family:Inter,system-ui,sans-serif}.inspector{width:320px;min-width:320px;flex-shrink:0;padding:24px;background:#fff;border-left:1px solid #e2e2e2;overflow-y:auto}.inspector.empty{color:#666}.inspector h3{margin-top:0;margin-bottom:16px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px;font-size:14px}.field textarea,.field input{font-size:14px;font-family:Inter,system-ui,sans-serif;padding:8px;border-radius:6px;border:1px solid #cfcfcf;resize:vertical}.field input[readonly]{background:#f5f5f5;cursor:not-allowed}.field textarea:focus,.field input:focus{outline:2px solid #0057ff44;border-color:#0057ff}.hint{color:#666;font-size:12px}.inspector-summary{font-size:14px;margin-top:8px}.delta-badge text{font-family:Inter,system-ui,sans-serif}.phase-box text,.phase-text{font-family:Inter,system-ui,sans-serif;font-size:16px;fill:#111;font-weight:600}.phase-handle{fill:#0057ff;stroke:#0057ff;cursor:ns-resize}.phase-handle:hover{fill:#003fba;stroke:#003fba}.reasons{display:flex;flex-direction:column;gap:12px;margin-top:16px}.reason-row{display:flex;gap:12px;align-items:flex-start;flex-wrap:wrap}.reason-row .field,.field.compact{margin-bottom:0}.reason-title{flex:1 1 auto;min-width:140px}.reason-count{flex:0 0 120px}.reason-count input{width:100%}.remove-reason{border:1px solid #e0b5b5;background:#fff3f3;color:#d92c2c;font-size:12px;cursor:pointer;padding:4px 8px;border-radius:6px;align-self:center}.remove-reason:hover{background:#f1c5c5}.add-reason{align-self:flex-start;padding:6px 12px;border-radius:6px;border:1px solid #c7c7c7;background:#fff;cursor:pointer;font-size:13px}.add-reason:hover{border-color:#999}.help-overlay{position:fixed;inset:0;background:#1111118c;display:flex;align-items:center;justify-content:center;padding:24px;z-index:40}.help-dialog{background:#fff;border-radius:16px;padding:24px;max-width:420px;width:100%;box-shadow:0 20px 45px #1113;display:flex;flex-direction:column;gap:16px}.help-dialog h2{margin-top:4px;margin-bottom:0;font-size:22px}.help-body{font-size:15px;color:#1a1a1a;display:flex;flex-direction:column;gap:8px}.help-actions{display:flex;justify-content:flex-end;gap:12px}.help-actions button{padding:8px 16px;border-radius:8px;border:1px solid #c7c7c7;background:#f7f7f7;cursor:pointer}.help-actions button:hover{border-color:#999}.help-disable{background:#fff2f2;border-color:#f0b3b3;color:#a82222}.help-tag{margin:0;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#666}