- 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" [active] [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 "3D" [ref=e29]
        - button "Top" [ref=e30]
        - button "Front" [ref=e31]
        - button "Side" [ref=e32]
  - generic [ref=e33]:
    - complementary [ref=e34]:
      - generic [ref=e35]:
        - heading "Parts Library" [level=2] [ref=e36]
        - paragraph [ref=e37]: Click then place in scene, or drag onto the canvas. Shift-click to stamp copies.
      - generic [ref=e38]:
        - generic [ref=e39]:
          - heading "Tool Belt" [level=3] [ref=e40]
          - generic [ref=e41]:
            - button "1 Pipe" [ref=e42]:
              - generic [ref=e43]: "1"
              - img [ref=e44]
              - generic [ref=e48]: Pipe
            - button "2 Elbow" [ref=e49]:
              - generic [ref=e50]: "2"
              - img [ref=e51]
              - generic [ref=e55]: Elbow
            - button "3 T-Joint" [ref=e56]:
              - generic [ref=e57]: "3"
              - img [ref=e58]
              - generic [ref=e63]: T-Joint
            - button "4 Valve" [ref=e64]:
              - generic [ref=e65]: "4"
              - img [ref=e66]
              - generic [ref=e70]: Valve
            - button "5 Pump" [ref=e71]:
              - generic [ref=e72]: "5"
              - img [ref=e73]
              - generic [ref=e79]: Pump
            - button "6 Reservoir" [ref=e80]:
              - generic [ref=e81]: "6"
              - img [ref=e82]
              - generic [ref=e86]: Reservoir
            - button "7 Grow Tower" [ref=e87]:
              - generic [ref=e88]: "7"
              - img [ref=e89]
              - generic [ref=e98]: Grow Tower
            - button "8 Grow Tray" [ref=e99]:
              - generic [ref=e100]: "8"
              - img [ref=e101]
              - generic [ref=e107]: Grow Tray
            - button "9 Emitter" [ref=e108]:
              - generic [ref=e109]: "9"
              - img [ref=e110]
              - generic [ref=e118]: Emitter
        - generic [ref=e119]:
          - heading "Quick Builds" [level=3] [ref=e120]
          - generic [ref=e121]:
            - button "NFT loop Reservoir, pump, NFT tray, return drain, and plant cups +" [ref=e122]:
              - generic [ref=e123]:
                - generic [ref=e124]: NFT loop
                - generic [ref=e125]: Reservoir, pump, NFT tray, return drain, and plant cups
              - generic [ref=e126]: +
            - button "Drip manifold Pump-fed header with tee branches, valves, and emitters +" [ref=e127]:
              - generic [ref=e128]:
                - generic [ref=e129]: Drip manifold
                - generic [ref=e130]: Pump-fed header with tee branches, valves, and emitters
              - generic [ref=e131]: +
        - generic [ref=e132]:
          - heading "Plumbing" [level=3] [ref=e133]
          - generic [ref=e134]:
            - button "Pipe" [ref=e135]:
              - img [ref=e136]
              - generic [ref=e140]: Pipe
            - button "Coupling" [ref=e141]:
              - img [ref=e142]
              - generic [ref=e145]: Coupling
            - button "Reducer" [ref=e146]:
              - img [ref=e147]
              - generic [ref=e150]: Reducer
            - button "Cap" [ref=e151]:
              - img [ref=e152]
              - generic [ref=e155]: Cap
            - button "Elbow" [ref=e156]:
              - img [ref=e157]
              - generic [ref=e161]: Elbow
            - button "T-Joint" [ref=e162]:
              - img [ref=e163]
              - generic [ref=e168]: T-Joint
        - generic [ref=e169]:
          - heading "Flow Control" [level=3] [ref=e170]
          - generic [ref=e171]:
            - button "Pump" [ref=e172]:
              - img [ref=e173]
              - generic [ref=e179]: Pump
            - button "Reservoir" [ref=e180]:
              - img [ref=e181]
              - generic [ref=e185]: Reservoir
            - button "Valve" [ref=e186]:
              - img [ref=e187]
              - generic [ref=e191]: Valve
            - button "Emitter" [ref=e192]:
              - img [ref=e193]
              - generic [ref=e201]: Emitter
            - button "Drain" [ref=e202]:
              - img [ref=e203]
              - generic [ref=e206]: Drain
        - generic [ref=e207]:
          - heading "Growing" [level=3] [ref=e208]
          - generic [ref=e209]:
            - button "Grow Tower" [ref=e210]:
              - img [ref=e211]
              - generic [ref=e220]: Grow Tower
            - button "Grow Tray" [ref=e221]:
              - img [ref=e222]
              - generic [ref=e228]: Grow Tray
            - button "Wall Panel" [ref=e229]:
              - img [ref=e230]
              - generic [ref=e241]: Wall Panel
            - button "Net Pot" [ref=e242]:
              - img [ref=e243]
              - generic [ref=e249]: Net Pot
        - generic [ref=e250]:
          - heading "Structure" [level=3] [ref=e251]
          - button "Lattice" [ref=e253]:
            - img [ref=e254]
            - generic [ref=e263]: Lattice
    - main [ref=e264]
    - complementary [ref=e268]:
      - heading "Inspector" [level=2] [ref=e270]
      - generic [ref=e271]:
        - text: Select a part to edit its properties.
        - list [ref=e272]:
          - listitem [ref=e273]: Click select · drag to move
          - listitem [ref=e274]: ⇧Click add/remove from selection
          - listitem [ref=e275]: ⌘Click change color
          - listitem [ref=e276]: Drag connector dots to snap pipes
          - listitem [ref=e277]: ⇧Drag move vertically (3D view)
          - listitem [ref=e278]: ⌥Drag clone while dragging
          - listitem [ref=e279]: Space play / pause water
          - listitem [ref=e280]: R rotate 90° Q/E lower / raise
          - listitem [ref=e281]: D duplicate ⌫ delete
          - listitem [ref=e282]: ⌘Z undo ⇧⌘Z redo
          - listitem [ref=e283]: Esc deselect / cancel
  - contentinfo [ref=e284]:
    - generic [ref=e285]:
      - heading "Simulation" [level=3] [ref=e286]
      - generic [ref=e287]: 396GPH
      - generic [ref=e288]: ≈ 1500 L/h · 33 parts · 23 connections
      - generic [ref=e289]: peak 2.2 ft/s · 1.5 psi
      - button "Water flowing" [ref=e290] [cursor=pointer]: Water flowing
    - generic [ref=e294]:
      - heading "Pumps" [level=3] [ref=e295]
      - button "321 GPH/ 1300 rated head 1.1/2 ft" [ref=e296]:
        - generic [ref=e297]:
          - generic [ref=e298]:
            - text: 321 GPH
            - generic [ref=e299]: / 1300 rated
          - generic [ref=e300]: head 1.1/2 ft
      - button "75 GPH/ 240 rated head 4.5/8 ft" [ref=e303]:
        - generic [ref=e304]:
          - generic [ref=e305]:
            - text: 75 GPH
            - generic [ref=e306]: / 240 rated
          - generic [ref=e307]: head 4.5/8 ft
    - generic [ref=e310]:
      - heading "Diagnostics" [level=3] [ref=e311]
      - 'button "⚠️ Main pump: dead end — water has nowhere to go (no reservoir, emitter, drain or tray downstream)." [ref=e312] [cursor=pointer]'
      - button "⚠️ 6 parts on a dead-end branch — water is trapped and backing up." [ref=e313]
  - dialog [ref=e314]:
    - complementary [ref=e316]:
      - generic [ref=e317]:
        - generic [ref=e318]:
          - heading "Design Check" [level=2] [ref=e319]
          - paragraph [ref=e320]: 3 warnings · 4 tips
        - button "Close design check" [ref=e321]: Close
      - generic [ref=e323]:
        - generic [ref=e324]:
          - heading "Warnings 3" [level=3] [ref=e325]:
            - text: Warnings
            - generic [ref=e327]: "3"
          - generic [ref=e328]:
            - generic [ref=e332]:
              - heading "Mismatched pipe diameters at a joint" [level=4] [ref=e333]
              - paragraph [ref=e334]: T-Joint (4 in) is joined to Pipe (1 in) — the abrupt size change causes turbulence and pressure loss.
              - paragraph [ref=e335]: "Fix: Add a reducer or match diameters (T-Joint is 4 in, Pipe is 1 in)"
              - generic [ref=e336]:
                - button "Show part 1" [ref=e337]
                - button "Show part 2" [ref=e338]
            - generic [ref=e342]:
              - heading "Mismatched pipe diameters at a joint" [level=4] [ref=e343]
              - paragraph [ref=e344]: T-Joint (4 in) is joined to Pipe (0.5 in) — the abrupt size change causes turbulence and pressure loss.
              - paragraph [ref=e345]: "Fix: Add a reducer or match diameters (T-Joint is 4 in, Pipe is 0.5 in)"
              - generic [ref=e346]:
                - button "Show part 1" [ref=e347]
                - button "Show part 2" [ref=e348]
            - generic [ref=e352]:
              - heading "Mismatched pipe diameters at a joint" [level=4] [ref=e353]
              - paragraph [ref=e354]: Pipe (1 in) is joined to Elbow (4 in) — the abrupt size change causes turbulence and pressure loss.
              - paragraph [ref=e355]: "Fix: Add a reducer or match diameters (Pipe is 1 in, Elbow is 4 in)"
              - generic [ref=e356]:
                - button "Show part 1" [ref=e357]
                - button "Show part 2" [ref=e358]
        - generic [ref=e359]:
          - heading "Tips 4" [level=3] [ref=e360]:
            - text: Tips
            - generic [ref=e362]: "4"
          - generic [ref=e363]:
            - generic [ref=e367]:
              - heading "Possible siphon on shutdown" [level=4] [ref=e368]
              - paragraph [ref=e369]: Flow from Tower pump climbs to 4.5 ft and then descends 4.6 ft — when the pump stops, gravity can keep siphoning water through the line.
              - paragraph [ref=e370]: "Fix: Add an air gap or check valve at the high point"
              - button "Show part" [ref=e372]
            - generic [ref=e376]:
              - heading "Not connected to anything" [level=4] [ref=e377]
              - paragraph [ref=e378]: Return emitter has no connections — it is not part of any water circuit.
              - paragraph [ref=e379]: "Fix: Drag it onto a matching connector, or delete it if unused."
              - button "Show part" [ref=e381]
            - generic [ref=e385]:
              - heading "Not connected to anything" [level=4] [ref=e386]
              - paragraph [ref=e387]: Floor drain has no connections — it is not part of any water circuit.
              - paragraph [ref=e388]: "Fix: Drag it onto a matching connector, or delete it if unused."
              - button "Show part" [ref=e390]
            - generic [ref=e394]:
              - heading "Not connected to anything" [level=4] [ref=e395]
              - paragraph [ref=e396]: Grow Tray has no connections — it is not part of any water circuit.
              - paragraph [ref=e397]: "Fix: Drag it onto a matching connector, or delete it if unused."
              - button "Show part" [ref=e399]