White background. The surface (#EEF0F3) has a cool blue-gray tint. Like frosted glass. It creates card backgrounds that feel institutional without being cold. The difference between white and that surface color is subtle but your brain registers "layered" and "organized."

Inter at 400 for everything. Regular weight across the entire system. No bold headings. No heavy emphasis. That restraint is the point. In a spacious, minimal layout, regular-weight text reads as calm and confident. Heavy weights would feel like the design is trying too hard to get your attention.

The 18px base size with 1.56 line height is optimized for comfortable reading. This is a system built for onboarding flows, educational content, and support documentation. The typography needs to feel effortless. Inter at regular weight with generous spacing delivers exactly that.

No shadows. Mineblue creates hierarchy through surface color alone. White content on blue-gray surface on white background. Three layers, no shadows. The darken hover effect is minimal. Elements shift slightly darker on hover. No lifts, no glows, no spring animations. The 0.98 active scale is barely noticeable. This is the most restrained interaction model possible. Calm. Institutional. The kind of UI that handles billions of dollars and doesn't flinch.