✓ 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/top=air maps correctly via `direction:rtl` + `writing-mode:vertical-lr` but the label arrows say "▲ Luft / ▼ Wasser" with value=0 at top — actually this makes top=air correct, but the CSS `direction:rtl` on a `writing-mode:vertical-lr` slider flips the thumb so that dragging up increases value, making top of slider = water = inverted UX); mass, volume, and density live values are static/hardcoded in HTML rather than dynamically updated in JS.
5,884 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0/top=air maps correctly via `direction:rtl` + `writing-mode:vertical-lr` but the label arrows say "▲ Luft / ▼ Wasser" with value=0 at top — actually this makes top=air correct, but the CSS `direction:rtl` on a `writing-mode:vertical-lr` slider flips the thumb so that dragging up increases value, making top of slider = water = inverted UX); mass, volume, and density live values are static/hardcoded in HTML rather than dynamically updated in JS.