✓ Two crowns ✓ Same mass, different density ✓ Vertical slider ✓ Slider works ✓ Slider controls crowns — Slider direction correct ✓ Full slider range — Fall animation ✓ Water displacement ✓ Rising water level ✓ Splash effects ✓ Physics correct ✓ Live mass value ✓ Live volume value ✓ Live density value ✓ Live displaced water ✓ Gilded displaces more ✓ Heureka animation ✓ No external deps ✓ Light bg / dark text ✓ Self-contained HTML
Slider direction is inverted (min=0 maps to crowns in air at slider top via CSS rotation, but the HTML arrow labels "☝ Luft" above and "💧 Wasser" below are cosmetically correct yet the rotated range input maps dragging up to increasing value, making the logical direction ambiguous/unreliable); no true fall animation (crowns jump linearly with slider rather than animating autonomously), but physics values, dual-crown displacement, rising water, splash particles, and Heureka overlay are all solid.
8,126 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 maps to crowns in air at slider top via CSS rotation, but the HTML arrow labels "☝ Luft" above and "💧 Wasser" below are cosmetically correct yet the rotated range input maps dragging up to increasing value, making the logical direction ambiguous/unreliable); no true fall animation (crowns jump linearly with slider rather than animating autonomously), but physics values, dual-crown displacement, rising water, splash particles, and Heureka overlay are all solid.