lab01.dev – Design System Reference

1. Visual Theme & Atmosphere

Developer-first terminal aesthetic. Geist Mono unifies every text element under a code-lab identity, stripping away decorative type in favour of monospaced precision and functional density.

The overall mode is dark, with a monospaced, code-aesthetic typographic identity. Shadows and elevation are used sparingly to separate key surfaces.

2. Color Palette & Roles

Computed Roles

• background (body): rgb(10, 10, 10)
• text (body): rgba(255, 255, 255, 0.8)
• border (header): oklch(1 0 0 / 0.08)
• background (footer): rgb(250, 250, 250)
• background (button): rgb(17, 17, 17)
• background (span.btn-availability-indicator): rgb(52, 211, 153)
• background (button.btn-color): rgb(186, 150, 90)
• background (button.btn-color): rgb(134, 143, 159)
• background (button.btn-color): rgb(252, 73, 160)
• background (button.btn-color): rgb(122, 143, 247)
• background (button.btn-color): rgb(238, 65, 105)
• background (button.btn-color): rgb(178, 224, 113)

Key observations: No token layer exists. Colours emerge from context and browser defaults. Dark-mode-first palette.

3. Typography Rules

h1 – Geist Mono, 13px, weight 500, line-height 18.2px

Hierarchy principle: A single typeface (Geist Mono) handles all levels. Size and weight alone establish rhythm.

What is absent: No proportional serif or display face. The monospaced system is intentional – do not introduce decorative type.

4. Component Styling

Border radii: No border radii detected – corners are sharp throughout.

Interactive states:

• button: tag: button.btn-color “Copy color to clipbo”, default: [object Object], hover: null, focus: [object Object]
• button: tag: button.btn-color “Copy color to clipbo”, default: [object Object], hover: null, focus: [object Object]
• button: tag: button.btn-color “Copy color to clipbo”, default: [object Object], hover: null, focus: [object Object]
• a[href]: tag: a.logo “Back to top”, default: [object Object], hover: null, focus: [object Object]

Buttons & controls: Match the typographic register – monospaced labels, minimal padding, high-contrast borders.

5. Layout Principles

Flex/grid gaps: normal 24px.

No dominant padding pattern – spacing is contextual.

Avoid introducing grid lines, dividers, or decorative rules unless absolutely necessary. Let whitespace do the structural work.

6. Depth & Elevation

• element: "oklch(1 0 0 / 0.2) 0px 1px 0px 0px inset"
• element: "rgba(255, 255, 255, 0.05) 0px 0px 0px 1px inset, rgba(0, 0, 0, 0.075) 0px 0px 0px 1px, rgba(0, 0, 0, 0.06) 0px 0.2px 0.3px -2px, rgba(0, 0, 0, 0.082) 0px 0.7px 0.9px -2px, rgba(0, 0, 0, 0.14) 0px 3px 4px -2px"

Use shadows conservatively – reserve elevation for interactive feedback (dropdowns, modals), not decorative layering.

7. Do’s and Don’ts

Do:

• Respect the monospaced, code-aesthetic typographic voice – every element should speak the same typeface language.
• Use whitespace as a primary design tool. When in doubt, add space rather than elements.
• Stay within the established colour range – no additional palette colours.
• Keep interactions subtle: micro-transitions at 150-200ms maximum.

Don’t:

• Do not introduce proportional or display typefaces. The monospaced grid is the identity.
• Do not add drop shadows, gradients, or decorative textures unless they are already present in the system.
• Do not use colour to communicate hierarchy – size and weight do that work here.
• Avoid centring body text. The layout has a strong left-anchored reading rhythm.

8. Responsive Behavior

No explicit CSS breakpoints extracted. The layout relies on fluid units, CSS Grid auto-fit, or a single-column mobile-first approach.

Build mobile-first. Use fluid type and spacing where the existing CSS suggests it (clamp(), vw units). Avoid rigid pixel breakpoints if the system uses fluid scaling.

On small screens, collapse multi-column layouts to a single column without compromising the typographic scale. The type should remain readable – never below 14px rendered size.

9. Agent Prompt Guide

When generating UI components, extensions, or page sections for lab01.dev, instruct the agent as follows:

“Build in the style of lab01.dev: developer-first terminal aesthetic. Use Geist Mono as the primary typeface. Dark background, light text. Shadows only for modal-level elevation. Minimal palette, no custom tokens. No animations – immediate state changes only. Generous whitespace, strong typographic scale. Sharp corners throughout.”

Generated by Sparkbites – extracted from live CSS analysis