✓ 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 (value=0/top=air is correct in label, but the CSS rotates a horizontal range -90deg making the top physically map to the slider's min, so dragging up increases immersion — confirming inversion); mass, volume, and density values are static HTML, not live-updating via JS, so those three live-value features fail.
9,506 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (value=0/top=air is correct in label, but the CSS rotates a horizontal range -90deg making the top physically map to the slider's min, so dragging up increases immersion — confirming inversion); mass, volume, and density values are static HTML, not live-updating via JS, so those three live-value features fail.