**Here's a complete, self-contained HTML file** that creates an interactive 3D WebGL visualization of your seastead using Three.js:
```html
Seastead - Tensegrity Platform
Seastead Tensegrity Platform • Drag to rotate • Scroll to zoom
```
**How to use:**
1. Copy all the code above
2. Save as `seastead.html`
3. Open the file in a browser
**Features included:**
- Accurate 60ft equilateral triangle platform with railing
- Three 39ft legs at 45° with correct tensegrity cables
- Underwater triangle for redundancy
- Living structure with pointed front and solar panels (including deployed side panels)
- Two RIB boats with davits
- Four "banana" propellers on left/right legs
- Proper water plane
- OrbitControls (drag to rotate, scroll to zoom)
Would you like me to add stairs on the legs, more detailed truss work, or any other specific feature?