Sidera/Foundations/Radius & Elevation
Radius & Elevation
Four corner radii cover the whole system, and depth is drawn with hairlines rather than shadow — keeping surfaces crisp on a near-black canvas.
Radii4
ElevationHairline
01 —Corner radius
sm · 4
md · 10
lg · 18
full · full
02 —Elevation
Sidera avoids heavy drop shadows. Layers separate through hairline borders and small shifts in surface value (Background → Card → Subtle). This keeps the interface quiet and legible in both light and dark.
Background
Card
Subtle