Craft UI Skills

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

When to Apply

Reference these guidelines when:

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

Colors

• SHOULD use light backgrounds for primary surfaces
• MUST use #F3EFEC as page background (surface-base)
• MUST use #D0E8F4 for primary actions and focus states (accent)
• SHOULD reduce color palette (currently 35 colors detected)
• MUST maintain text contrast ratio of at least 4.5:1 for accessibility

Semantic Tokens

Token	HEX	RGB	Usage
surface-base	#F3EFEC	rgb(243,239,236)	Page background
surface-raised	#E3F2E6	rgb(227,242,230)	Cards, modals, raised surfaces
surface-overlay	#FEFCCD	rgb(254,252,205)	Overlays, tooltips, dropdowns
text-primary	#586588	rgb(88,101,136)	Headings, body text
text-secondary	#C1D1C6	rgb(193,209,198)	Secondary, muted text
text-tertiary	#7E8E83	rgb(126,142,131)	Additional text
border-default	#E3E3E1	rgb(227,227,225)	Subtle borders, dividers
warning	#050402	rgb(5,4,2)	Warning states, cautions
destructive	#EAA277	rgb(234,162,119)	Error states, delete actions
success	#E3F2E6	rgb(227,242,230)	Success states, confirmations
accent	#D0E8F4	rgb(208,232,244)	Primary actions, links, focus

Typography

• MUST use Inter as primary font family
• SHOULD use single font family for consistency
• MUST use 75px / 700 for primary headings
• MUST use 12px / 400 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

Style	Font	Size	Weight	Color	Count
heading-1	Inter	75px	700	#1C282E	1
text-20px	Inter	20px	700	#171B1D	1
text-17px	Inter	17px	300	#C2ADC1	1
text-16px	Inter	16px	500	#313E45	1
text-15px	Inter	15px	400	#475964	1
text-14px	Inter	14px	500	#5B5C5E	1
text-14px	Inter	14px	400	#B4B5B3	1
text-14px	Inter	14px	400	#3F525D	1
text-14px	Inter	14px	400	#445661	1
text-14px	Inter	14px	400	#3B4E57	1

Typography Reference

Font Families:

• Inter (used 51x)

Font Sizes: 6px, 7px, 8px, 9px, 10px, 11px, 12px, 13px, 14px, 15px, 16px, 17px, 20px, 75px

Spacing

• MUST use 4px grid for spacing
• SHOULD use spacing from scale: 1px, 2px, 3px, 4px, 5px, 6px, 7px, 8px
• 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: 3px, 9px, 10px, 13px, 15px, 16px, 18px, 19px, 21px, 22px
• SHOULD use 21px+ radius for pill-shaped elements
• SHOULD limit border widths to: 1px, 2px, 4px, 6px, 7px
• SHOULD use 18px 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: 3px, 9px, 10px, 13px, 15px, 16px, 18px, 19px, 21px, 22px

Layout

• MUST design for 1920px base viewport width
• SHOULD use consistent element widths: 12px, 39px, 13px, 178px, 10px
• 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: 1024px
• Main Content: width: 1920px, height: 998px
• Main Content: width: 1920px, height: 674px

Components

Buttons

Variant	Background	Text	Border	Height	Radius
Ghost	transparent	#313E45	none	-	-

Interactive States

Focus

• MUST use 2px outline with accent color (#D0E8F4)
• MUST use 2px outline-offset
• NEVER remove focus indicators

Hover

• Buttons (primary): lighten background by 10%
• Buttons (secondary): use #E3F2E6 background
• List items: use #E3F2E6 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