Crossfade between periodic table and lattice harmonics showing
the structural equivalence of electron shell filling (s/p/d/f blocks)
and LBM lattice mode families (Khra/Gixx). Features:
- Interactive slider: 0%=periodic table, 100%=lattice modes
- 118 elements mapped to lattice mode coordinates (k_x, k_y)
- Color transition from orbital blocks to wave families
- 9 shared structural features with probability analysis
- Combined coincidence odds: 1 in 93,000 (correlated)
- Mobile responsive, standalone HTML, zero build deps
- Companion to existing echo-chamber.html