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This HTML file creates an interactive 3D WebGL scene of your seastead design with the following features:
1. **Wing-shaped spar**: A simplified box representation with the specified dimensions (39ft long × 10ft chord × 5ft thick), positioned 70% underwater.
2. **8 RIM-drive thrusters**: 4 on each side, positioned along the underwater portion of the spar.
3. **Platform and solar array**: An open platform with railing above the spar, and a solar array extending 30ft × 30ft above that.
4. **Cable and ballast**: A cable extending 100ft below the spar with freely rotating fairings and a ballast at the bottom.
5. **Interactive controls**:
- Differential thrust slider to simulate turning
- Toggle waves on/off
- Wave height adjustment
- Reset view button
6. **Visual details**:
- Animated waves
- Rotating fairings
- Subtle spar movements for realism
- Sea floor and fish for scale reference
- Shadows and realistic lighting
You can interact with the scene using your mouse to orbit around the seastead, scroll to zoom, and use the controls to simulate differential thrust and wave effects.