✓ 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 is inverted (value=0 at top = crowns in air is correct by label but the range input with `writing-mode: bt-lr` and `value=0` means the visual top of the slider corresponds to 0, which maps to air — technically correct, but the slider direction label "▲ LUFT / WASSER ▼" is ambiguous and the native vertical range rendering is browser-inconsistent; also mass and density are static display values, not live-updating per-frame data, missing the live_value_mass and live_value_density dynamic requirement.
6,707 output tokens · claude-opus-4-6 · end_turn
Slider is inverted (value=0 at top = crowns in air is correct by label but the range input with `writing-mode: bt-lr` and `value=0` means the visual top of the slider corresponds to 0, which maps to air — technically correct, but the slider direction label "▲ LUFT / WASSER ▼" is ambiguous and the native vertical range rendering is browser-inconsistent; also mass and density are static display values, not live-updating per-frame data, missing the live_value_mass and live_value_density dynamic requirement.