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mem-ui-skills

Original：🇺🇸 English

Translated

Mem's UI design system. Use when building interfaces inspired by Mem's aesthetic - light mode, Inter font, 4px grid.

4installs

Sourceihlamury/design-skills

Added on2026-02-07

NPX Install

npx skill4agent add ihlamury/design-skills mem-ui-skills

Tags

Translated version includes tags in frontmatter

ui-design-system mem-style-interface typography-guidelines layout-specs interaction-design

SKILL.md Content

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Mem UI Skills

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

When to Apply

Reference these guidelines when:

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

Colors

SHOULD use light backgrounds for primary surfaces
MUST use
```
#F9F5ED
```
as page background (
```
surface-base
```
)
MUST use
```
#95A3DC
```
for primary actions and focus states (
```
accent
```
)
SHOULD limit color palette to 9 distinct colors
MUST maintain text contrast ratio of at least 4.5:1 for accessibility

Semantic Tokens

Token	HEX	RGB	Usage
`surface-base`	#F9F5ED	rgb(249,245,237)	Page background
`surface-raised`	#EADCC3	rgb(234,220,195)	Cards, modals, raised surfaces
`text-primary`	#474449	rgb(71,68,73)	Headings, body text
`text-2`	#665E53	rgb(102,94,83)	Additional text
`text-tertiary`	#2F2C3D	rgb(47,44,61)	Additional text
`border-default`	#534F59	rgb(83,79,89)	Subtle borders, dividers
`warning`	#F9F5ED	rgb(249,245,237)	Warning states, cautions
`accent`	#95A3DC	rgb(149,163,220)	Primary actions, links, focus

Typography

MUST use
```
Inter
```
as primary font family
SHOULD use single font family for consistency
MUST use
```
86px
```
/
```
700
```
for primary headings
MUST use
```
20px
```
/
```
400
```
for body text
MUST limit font weights to: regular, bold, semi_bold
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

Style	Font	Size	Weight	Color	Count
`heading-1`	Inter	86px	700	#2F2C3D	1
`body`	Inter	20px	400	#665E53	1
`body-secondary`	Inter	20px	400	#423E44	1
`body-secondary`	Inter	19px	400	#474349	1
`body-secondary`	Inter	19px	400	#514B51	1
`body-secondary`	Inter	19px	400	#605A60	1
`body-secondary`	Inter	19px	semi_bold	#34313F	1
`body-secondary`	Inter	18px	400	#504B4F	1
`body-secondary`	Inter	18px	400	#514D53	1
`text-16px`	Inter	16px	400	#474449	1

Typography Reference

Font Families:

```
Inter
```
(used 13x)

Font Sizes: 13px, 14px, 16px, 18px, 19px, 20px, 86px

Spacing

MUST use 4px grid for spacing
SHOULD use spacing from scale: 1px, 2px, 4px, 5px, 6px, 8px, 13px, 28px
SHOULD use 5px 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: 16px, 29px, 32px, 33px, 37px, 39px
SHOULD use 29px+ radius for pill-shaped elements
SHOULD limit border widths to: 1px, 2px, 3px
SHOULD use 37px 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: 16px, 29px, 32px, 33px, 37px, 39px

Layout

MUST design for 1920px base viewport width
SHOULD use consistent element widths: 302px, 304px, 74px
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: 937px
Main Content: width: 1920px, height: 920px
Header: height: 72px
Header: height: 71px

Components

Buttons

Variant	Background	Text	Border	Height	Radius
Ghost	transparent	#474449	none	-	-

Interactive States

Focus

MUST use
```
2px
```
outline with accent color (
```
#95A3DC
```
)
MUST use
```
2px
```
outline-offset
NEVER remove focus indicators

Hover

Buttons (primary): lighten background by 10%
Buttons (secondary): use
```
#EADCC3
```
background
List items: use
```
#EADCC3
```
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