✓ 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 a rotated horizontal input (min=0/left=air, max=100/right=water) which makes the direction semantically inverted from the spec (top=air, bottom=water), though functionally moving it right/down submerges crowns; physics, live values, splash/bubble/ripple effects, heureka animation, and dual-crown comparison are all well-implemented.
11,753 output tokens · claude-opus-4-6 · end_turn
Slider is a rotated horizontal input (min=0/left=air, max=100/right=water) which makes the direction semantically inverted from the spec (top=air, bottom=water), though functionally moving it right/down submerges crowns; physics, live values, splash/bubble/ripple effects, heureka animation, and dual-crown comparison are all well-implemented.