- generic [ref=e3]:
  - banner [ref=e4]:
    - generic [ref=e5]:
      - generic [ref=e6]: H
      - textbox [ref=e7]: "Demo: pump loop"
    - button "New" [ref=e8]
    - button "Save" [ref=e9]
    - button "Load ▾" [ref=e11]
    - button "Export" [ref=e12]
    - button "Import" [ref=e13]
    - button "BOM" [ref=e14]
    - button "Check Build" [ref=e15]
    - button "Auto Cap" [ref=e16]
    - button "↩︎" [disabled] [ref=e17]
    - button "↪︎" [disabled] [ref=e18]
    - button "📏 Measure" [ref=e19]
    - button "Pipe Run" [ref=e20]
    - button "⌗ Snap" [ref=e21]
    - generic [ref=e22]:
      - button "Pause water simulation (Space)" [ref=e23]:
        - img [ref=e24]
      - button "💧 Flow" [ref=e27]
      - generic [ref=e28]:
        - button "Builder" [ref=e29]
        - button "X-Ray" [ref=e30]
        - button "Water" [active] [ref=e31]
      - generic [ref=e32]:
        - button "3D" [ref=e33]
        - button "Top" [ref=e34]
        - button "Front" [ref=e35]
        - button "Side" [ref=e36]
  - generic [ref=e37]:
    - complementary [ref=e38]:
      - generic [ref=e39]:
        - heading "Parts Library" [level=2] [ref=e40]
        - paragraph [ref=e41]: Click then place in scene, or drag onto the canvas. Shift-click to stamp copies.
      - generic [ref=e42]:
        - generic [ref=e43]:
          - heading "Tool Belt" [level=3] [ref=e44]
          - generic [ref=e45]:
            - button "1 Pipe" [ref=e46]:
              - generic [ref=e47]: "1"
              - img [ref=e48]
              - generic [ref=e52]: Pipe
            - button "2 Elbow" [ref=e53]:
              - generic [ref=e54]: "2"
              - img [ref=e55]
              - generic [ref=e59]: Elbow
            - button "3 T-Joint" [ref=e60]:
              - generic [ref=e61]: "3"
              - img [ref=e62]
              - generic [ref=e67]: T-Joint
            - button "4 Valve" [ref=e68]:
              - generic [ref=e69]: "4"
              - img [ref=e70]
              - generic [ref=e74]: Valve
            - button "5 Pump" [ref=e75]:
              - generic [ref=e76]: "5"
              - img [ref=e77]
              - generic [ref=e83]: Pump
            - button "6 Reservoir" [ref=e84]:
              - generic [ref=e85]: "6"
              - img [ref=e86]
              - generic [ref=e90]: Reservoir
            - button "7 Grow Tower" [ref=e91]:
              - generic [ref=e92]: "7"
              - img [ref=e93]
              - generic [ref=e102]: Grow Tower
            - button "8 Grow Tray" [ref=e103]:
              - generic [ref=e104]: "8"
              - img [ref=e105]
              - generic [ref=e111]: Grow Tray
            - button "9 Emitter" [ref=e112]:
              - generic [ref=e113]: "9"
              - img [ref=e114]
              - generic [ref=e122]: Emitter
        - generic [ref=e123]:
          - heading "Quick Builds" [level=3] [ref=e124]
          - generic [ref=e125]:
            - button "NFT loop Reservoir, pump, NFT tray, return drain, and plant cups +" [ref=e126]:
              - generic [ref=e127]:
                - generic [ref=e128]: NFT loop
                - generic [ref=e129]: Reservoir, pump, NFT tray, return drain, and plant cups
              - generic [ref=e130]: +
            - button "Drip manifold Pump-fed header with tee branches, valves, and emitters +" [ref=e131]:
              - generic [ref=e132]:
                - generic [ref=e133]: Drip manifold
                - generic [ref=e134]: Pump-fed header with tee branches, valves, and emitters
              - generic [ref=e135]: +
        - generic [ref=e136]:
          - heading "Plumbing" [level=3] [ref=e137]
          - generic [ref=e138]:
            - button "Pipe" [ref=e139]:
              - img [ref=e140]
              - generic [ref=e144]: Pipe
            - button "Coupling" [ref=e145]:
              - img [ref=e146]
              - generic [ref=e149]: Coupling
            - button "Reducer" [ref=e150]:
              - img [ref=e151]
              - generic [ref=e154]: Reducer
            - button "Cap" [ref=e155]:
              - img [ref=e156]
              - generic [ref=e159]: Cap
            - button "Elbow" [ref=e160]:
              - img [ref=e161]
              - generic [ref=e165]: Elbow
            - button "T-Joint" [ref=e166]:
              - img [ref=e167]
              - generic [ref=e172]: T-Joint
        - generic [ref=e173]:
          - heading "Flow Control" [level=3] [ref=e174]
          - generic [ref=e175]:
            - button "Pump" [ref=e176]:
              - img [ref=e177]
              - generic [ref=e183]: Pump
            - button "Reservoir" [ref=e184]:
              - img [ref=e185]
              - generic [ref=e189]: Reservoir
            - button "Valve" [ref=e190]:
              - img [ref=e191]
              - generic [ref=e195]: Valve
            - button "Emitter" [ref=e196]:
              - img [ref=e197]
              - generic [ref=e205]: Emitter
            - button "Drain" [ref=e206]:
              - img [ref=e207]
              - generic [ref=e210]: Drain
        - generic [ref=e211]:
          - heading "Growing" [level=3] [ref=e212]
          - generic [ref=e213]:
            - button "Grow Tower" [ref=e214]:
              - img [ref=e215]
              - generic [ref=e224]: Grow Tower
            - button "Grow Tray" [ref=e225]:
              - img [ref=e226]
              - generic [ref=e232]: Grow Tray
            - button "Wall Panel" [ref=e233]:
              - img [ref=e234]
              - generic [ref=e245]: Wall Panel
            - button "Net Pot" [ref=e246]:
              - img [ref=e247]
              - generic [ref=e253]: Net Pot
        - generic [ref=e254]:
          - heading "Structure" [level=3] [ref=e255]
          - button "Lattice" [ref=e257]:
            - img [ref=e258]
            - generic [ref=e267]: Lattice
        - generic [ref=e268]:
          - heading "Environment" [level=3] [ref=e269]
          - generic [ref=e270]:
            - button "Grow Tent" [ref=e271]:
              - img [ref=e272]
              - generic [ref=e275]: Grow Tent
            - button "Inline Fan" [ref=e276]:
              - img [ref=e277]
              - generic [ref=e284]: Inline Fan
            - button "Circulation Fan" [ref=e285]:
              - img [ref=e286]
              - generic [ref=e291]: Circulation Fan
            - button "Grow Light" [ref=e292]:
              - img [ref=e293]
              - generic [ref=e297]: Grow Light
            - button "CO₂ Tank" [ref=e298]:
              - img [ref=e299]:
                - generic [ref=e302]: CO2
              - generic [ref=e303]: CO₂ Tank
    - main [ref=e304]
    - complementary [ref=e308]:
      - heading "Inspector" [level=2] [ref=e310]
      - generic [ref=e311]:
        - text: Select a part to edit its properties.
        - list [ref=e312]:
          - listitem [ref=e313]: Click select · drag to move
          - listitem [ref=e314]: ⇧Click add/remove from selection
          - listitem [ref=e315]: ⌘Click change color
          - listitem [ref=e316]: Drag connector dots to snap pipes
          - listitem [ref=e317]: ⇧Drag move vertically (3D view)
          - listitem [ref=e318]: ⌥Drag clone while dragging
          - listitem [ref=e319]: Space play / pause water
          - listitem [ref=e320]: R rotate 90° Q/E lower / raise
          - listitem [ref=e321]: D duplicate ⌫ delete
          - listitem [ref=e322]: ⌘Z undo ⇧⌘Z redo
          - listitem [ref=e323]: Esc deselect / cancel
  - contentinfo [ref=e324]:
    - generic [ref=e325]:
      - heading "Simulation" [level=3] [ref=e326]
      - generic [ref=e327]: 246GPH
      - generic [ref=e328]: ≈ 933 L/h · 26 parts · 20 connections
      - generic [ref=e329]: peak 1.7 ft/s · 2.1 psi
      - button "Water flowing" [ref=e330] [cursor=pointer]: Water flowing
    - generic [ref=e334]:
      - heading "Pumps" [level=3] [ref=e335]
      - button "171 GPH/ 550 rated head 3.3/8 ft" [ref=e336]:
        - generic [ref=e337]:
          - generic [ref=e338]:
            - text: 171 GPH
            - generic [ref=e339]: / 550 rated
          - generic [ref=e340]: head 3.3/8 ft
      - button "75 GPH/ 240 rated head 4.5/8 ft" [ref=e343]:
        - generic [ref=e344]:
          - generic [ref=e345]:
            - text: 75 GPH
            - generic [ref=e346]: / 240 rated
          - generic [ref=e347]: head 4.5/8 ft
    - generic [ref=e350]:
      - heading "Environment" [level=3] [ref=e351]
      - paragraph [ref=e352]: Add a grow tent/room to track air exchange.
    - generic [ref=e353]:
      - heading "Diagnostics" [level=3] [ref=e354]
      - paragraph [ref=e355]: ✓ System healthy — no issues detected.