AgentSkillsCN

lemonsqueezy-ui-skills

Lemonsqueezy 的 UI 设计系统。在构建受 Lemonsqueezy 美学启发的界面时使用——浅色模式、Inter 字体、4px 网格。

SKILL.md
--- frontmatter
name: lemonsqueezy-ui-skills
description: Lemonsqueezy's UI design system. Use when building interfaces inspired by Lemonsqueezy's aesthetic - light mode, Inter font, 4px grid.
license: MIT
metadata:
  author: design-skills
  version: "1.0.0"
  source: https://lemonsqueezy.com

Lemonsqueezy UI Skills

Opinionated constraints for building Lemonsqueezy-style interfaces with AI agents.

When to Apply

Reference these guidelines when:

  • •Building light-mode interfaces
  • •Creating Lemonsqueezy-inspired design systems
  • •Implementing UIs with Inter font and 4px grid

Colors

  • •SHOULD use light backgrounds for primary surfaces
  • •MUST use #FEFEFE as page background (surface-base)
  • •MUST use #9368E3 for primary actions and focus states (accent)
  • •SHOULD reduce color palette (currently 12 colors detected)
  • •MUST maintain text contrast ratio of at least 4.5:1 for accessibility

Semantic Tokens

TokenHEXRGBUsage
surface-base#FEFEFErgb(254,254,254)Page background
surface-raised#3F01DFrgb(63,1,223)Cards, modals, raised surfaces
text-primary#D0B4F4rgb(208,180,244)Headings, body text
text-2#4F4F50rgb(79,79,80)Additional text
text-secondary#8550F5rgb(133,80,245)Secondary, muted text
border-default#9368E3rgb(147,104,227)Subtle borders, dividers
accent#9368E3rgb(147,104,227)Primary actions, links, focus
warning#FCD995rgb(252,217,149)Warning states, cautions

Typography

  • •MUST use Inter as primary font family
  • •SHOULD use single font family for consistency
  • •MUST use 74px / 700 for primary headings
  • •MUST use 31px / semi_bold for body text
  • •SHOULD reduce font weights (currently 4 detected)
  • •MUST use text-balance for headings and text-pretty for body text
  • •SHOULD use tabular-nums for numeric data
  • •NEVER modify letter-spacing unless explicitly requested

Text Styles

StyleFontSizeWeightColorCount
heading-1Inter74px700#F1E8F91
bodyInter31pxsemi_bold#E2D2F81
text-25pxInter25pxsemi_bold#E0CDF61
text-25pxInter25pxsemi_bold#E2D1F81
text-25pxInter25pxsemi_bold#DAC6F61
text-22pxInter22px500#D0B4F41
text-18pxInter18px400#8A59F21
text-15pxInter15px400#8A56F51
text-15pxInter15px400#8955F51
text-15pxInter15px400#794D141

Typography Reference

Font Families:

  • •Inter (used 18x)

Font Sizes: 11px, 12px, 13px, 14px, 15px, 18px, 22px, 25px, 31px, 74px

Spacing

  • •MUST use 4px grid for spacing
  • •SHOULD use spacing from scale: 2px, 3px, 4px, 5px, 6px, 15px, 16px, 17px
  • •SHOULD use 4px as default gap between elements
  • •NEVER use arbitrary spacing values (use design scale)
  • •SHOULD maintain consistent padding within containers

Borders

  • •MUST use border-radius from scale: 17px, 21px, 29px
  • •SHOULD use 21px+ radius for pill-shaped elements
  • •SHOULD limit border widths to: 1px, 2px
  • •SHOULD use 29px as default border-radius
  • •NEVER use arbitrary border-radius values (use design scale)
  • •SHOULD use subtle borders (1px) for element separation

Border Radius Reference

Scale: 17px, 21px, 29px

Layout

  • •MUST design for 1920px base viewport width
  • •SHOULD use consistent element widths: 30px, 12px, 145px, 88px, 8px
  • •SHOULD maintain text-heavy layout with clear hierarchy
  • •NEVER use h-screen, use h-dvh for full viewport height
  • •MUST respect safe-area-inset for fixed elements
  • •SHOULD use size-* for square elements instead of w-* + h-*

Detected Layout Patterns

  • •Main Content: width: 1920px, height: 1002px
  • •Main Content: width: 1920px, height: 998px
  • •Header: height: 69px

Components

Buttons

VariantBackgroundTextBorderHeightRadius
Ghosttransparent#D0B4F4none--

Interactive States

Focus

  • •MUST use 2px outline with accent color (#9368E3)
  • •MUST use 2px outline-offset
  • •NEVER remove focus indicators

Hover

  • •Buttons (primary): lighten background by 10%
  • •Buttons (secondary): use #3F01DF background
  • •List items: use #3F01DF background

Disabled

  • •MUST use opacity: 0.5
  • •MUST use cursor: not-allowed

Interaction

  • •MUST use an AlertDialog for destructive or irreversible actions
  • •SHOULD use structural skeletons for loading states
  • •MUST show errors next to where the action happens
  • •NEVER block paste in input or textarea elements
  • •MUST add an aria-label to icon-only buttons

Animation

  • •NEVER add animation unless it is explicitly requested
  • •MUST animate only compositor props (transform, opacity)
  • •NEVER animate layout properties (width, height, top, left, margin, padding)
  • •SHOULD use ease-out on entrance animations
  • •NEVER exceed 200ms for interaction feedback
  • •SHOULD respect prefers-reduced-motion

Performance

  • •NEVER animate large blur() or backdrop-filter surfaces
  • •NEVER apply will-change outside an active animation
  • •NEVER use useEffect for anything that can be expressed as render logic