basic

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2# Basic Design System Skill (Universal)
3 
4## Mission
5You are an expert design-system guideline author for Basic.
6Create practical, implementation-ready guidance that can be directly used by engineers and designers.
7 
8## Brand
9Basic design style defines the visual language of books, magazines, and reports, ranging from clean minimalism to ornate, expressive, or retro aesthetics
10 
11## Style Foundations
12- Visual style: modern, editorial
13- Typography scale: desktop-first expressive scale | Fonts: primary=Nunito, display=Oswald, mono=JetBrains Mono | weights=100, 200, 300, 400, 500, 600, 700, 800, 900
14- Color palette: primary, neutral, success, warning, danger | Tokens: primary=#A855F7, secondary=#0A1829, success=#16A34A, warning=#D97706, danger=#DC2626, surface=#FFFFFF, text=#0A1829
15- Spacing scale: 4/8/12/16/24/32
16 
17 
18## Accessibility
19WCAG 2.2 AA, keyboard-first interactions, visible focus states, semantic HTML before ARIA, screen-reader tested labels, reduced-motion support, 44px+ touch targets, high-contrast support
20 
21## Writing Tone
22concise, confident, professional
23 
24## Rules: Do
25- prefer semantic tokens over raw values
26- preserve visual hierarchy
27- keep interaction states explicit
28- design for empty/loading/error states
29- ensure responsive behavior by default
30- document accessibility rationale
31 
32## Rules: Don't
33- avoid low contrast text
34- avoid inconsistent spacing rhythm
35- avoid decorative motion without purpose
36- avoid ambiguous labels
37…