Constraint 01
Behavior boundary
No runtime logic, no component hydration, no scripts.
No JavaScript
One interface, fully bounded to CSS.
This page is intentionally constrained: semantic HTML, intentional typography, gradient atmosphere, and state transitions powered only by CSS.
Constraint 02
Visual system
Color, depth, and rhythm emerge from gradients and type hierarchy.
Constraint 03
Interaction
Hover, focus, and reveal states are authored through transitions alone.
Signal board
Readable under pressure, even in a tight stack.
A1
Legibility lane
Display serif for hierarchy, sans for flow, mono for control labels.
B3
Atmospheric depth
Multi-layer gradients provide field texture without image assets.
C7
Motion policy
One entrance motion and one hover lift to keep signal over spectacle.