DESIGN.md@.agents/tools/design/library/styles/startup-minimal alphaA

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---
version: alpha
name: Startup Minimal
description: Clean, focused, engineered design system with single blue accent, near-white backgrounds, and razor-thin borders
colors:
  primary: "#2563eb"
  secondary: "#71717a"
  tertiary: "#2563eb"
  neutral: "#fafafa"
  surface: "#ffffff"
  on-surface: "#18181b"
  error: "#dc2626"
typography:
  headline-display:
    fontFamily: "'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif"
    fontSize: 48px
    fontWeight: 700
    lineHeight: 1.1
    letterSpacing: -0.03em
  headline-lg:
    fontFamily: "'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif"
    fontSize: 36px
    fontWeight: 600
    lineHeight: 1.15
    letterSpacing: -0.025em
  headline-md:
    fontFamily: "'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif"
    fontSize: 28px
    fontWeight: 600
    lineHeight: 1.2
    letterSpacing: -0.02em
  body-md:
    fontFamily: "'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif"
    fontSize: 15px
    fontWeight: 400
    lineHeight: 1.6
    letterSpacing: -0.006em
  body-sm:
    fontFamily: "'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif"
    fontSize: 13px
    fontWeight: 400
    lineHeight: 1.5
  label-md:
    fontFamily: "'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif"
    fontSize: 13px
    fontWeight: 500
    lineHeight: 1.4
rounded:
  none: 0
  sm: 4px
  md: 6px
  lg: 8px
  xl: 8px
  full: 9999px
spacing:
  unit: 4px
  xs: 4px
  sm: 8px
  md: 16px
  lg: 32px
  xl: 64px
  gutter: 24px
  margin: 32px
components:
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "#ffffff"
    typography: "{typography.label-md}"
    rounded: "{rounded.md}"
    padding: 10px 20px
  button-primary-hover:
    backgroundColor: "#1d4ed8"
  button-secondary:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.on-surface}"
    typography: "{typography.label-md}"
    rounded: "{rounded.md}"
    border: "1px solid #e5e7eb"
    padding: 10px 20px
  input-default:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.on-surface}"
    typography: "{typography.body-md}"
    rounded: "{rounded.md}"
    padding: 10px 14px
    border: "1px solid #e5e7eb"
  card:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.on-surface}"
    rounded: "{rounded.lg}"
    padding: 20px
    border: "1px solid #e5e7eb"
---

<!--
DESIGN.md — AI-readable design system document
Format: google-labs-code/design.md v0.1.0 (format version: alpha)
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<!-- SPDX-License-Identifier: MIT -->
<!-- SPDX-FileCopyrightText: 2025-2026 Marcus Quinn -->

# Design System: Startup Minimal

Clean, focused, engineered. Single blue accent (`#2563eb`), near-white backgrounds, razor-thin borders, 4px grid. No gradients, no decorative elements — hierarchy through typography and spacing.

## Chapters

| # | File | Spec Section |
|---|------|-------------|
| 1 | [01-theme.md](01-theme.md) | Overview |
| 2 | [02-colours.md](02-colours.md) | Colors |
| 3 | [03-typography.md](03-typography.md) | Typography |
| 4 | [05-layout.md](05-layout.md) | Layout |
| 5 | [06-elevation.md](06-elevation.md) | Elevation & Depth |
| 6 | [05-layout.md](05-layout.md) | Shapes (Border Radius Scale) |
| 7 | [04-components.md](04-components.md) | Components |
| 8 | [07-dos-and-donts.md](07-dos-and-donts.md) | Do's and Don'ts |
| 9 | [08-responsive.md](08-responsive.md) | Responsive Behaviour |
| 10 | [09-agent-prompts.md](09-agent-prompts.md) | Agent Prompt Guide |

## Quick Reference

**Accent:** `#2563eb` (blue) — the only colour that matters
**Background:** `#fafafa` page / `#ffffff` surfaces
**Text:** `#18181b` primary / `#71717a` secondary
**Border:** `1px #e5e7eb` everywhere
**Font:** Inter (sans) / Geist Mono (code)
**Grid:** 4px base, 12-column, 1200px max container
**Radius:** 6px default / 8px cards
**Motion:** 150ms ease, state transitions only

<!--
Style archetype by AI DevOps (https://aidevops.sh)
DESIGN.md spec: https://github.com/google-labs-code/design.md
-->