docs(10_Wiki): Topic_Business/General/Graphic/Programming을 Topics/ 하위로 이동

최상위 10_Wiki/Topic_*였던 4개 카테고리 폴더를 10_Wiki/Topics/Topic_* 로 재배치. 콘텐츠 변경 없음(순수 폴더 이동) — Topics/ 하위 나머지 폴더는 이미 지난 커밋에서 전부 정리된 상태(잔존 항목은 에이전트 운영 상태 및 사용자가 보존을 요청한 업데이트0615/무제 3.canvas 뿐).
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+---
+id: wiki-2026-0508-vanilla-extract
+title: vanilla-extract
+category: 10_Wiki/Topics
+status: verified
+canonical_id: self
+aliases: [vanilla-extract, vanilla extract, ve, css.ts]
+duplicate_of: none
+source_trust_level: A
+confidence_score: 0.9
+verification_status: applied
+tags: [css-in-js, zero-runtime, vanilla-extract, typescript, build-time]
+raw_sources: []
+last_reinforced: 2026-05-10
+github_commit: pending
+tech_stack:
+  language: typescript
+  framework: vanilla-extract
+---
+
+# vanilla-extract
+
+## 매 한 줄
+> **"매 TypeScript 로 type-safe 한 zero-runtime CSS-in-JS"**. 매 Mark Dalgleish (Seek) 가 2021 년 출시. 매 `.css.ts` 파일을 build time 에 static CSS 로 추출, 매 token / variant / theme 매 모두 typed. 매 Next.js App Router (RSC) 의 사실상 표준, 매 component library 배포 의 zero-runtime guarantee.
+
+## 매 핵심
+
+### 매 핵심 API
+- `style({...})`: 매 single CSS class 생성 → unique class name 반환.
+- `globalStyle('selector', {...})`: 매 global selector style.
+- `recipe({base, variants})`: 매 variant-based component (CVA-like, type-safe).
+- `createTheme(contract, values)`: 매 token 의 ThemeProvider 대안.
+- `createThemeContract({...})`: 매 token shape 정의 (multi-theme).
+- `createVar()`: 매 CSS custom property (runtime dynamic).
+- `style([base, override])`: 매 style composition.
+
+### 매 build setup
+- **Webpack**: `@vanilla-extract/webpack-plugin`.
+- **Vite**: `@vanilla-extract/vite-plugin`.
+- **Next.js**: `@vanilla-extract/next-plugin` (App Router 호환).
+- **esbuild / Rollup / Parcel**: 매 dedicated plugins.
+- 매 결과: `.css.ts` → `.css` 추출 + `.js` 의 class name string export.
+
+### 매 응용
+1. Design system 의 token-based theming.
+2. Next.js App Router 의 RSC-compatible styling.
+3. Component library 의 zero-runtime publish.
+4. CVA-style variants via recipes.
+5. CSS variable scoped to component.
+
+## 💻 패턴
+
+### Basic style
+```ts
+// button.css.ts
+import { style } from '@vanilla-extract/css';
+
+export const button = style({
+  padding: '8px 16px',
+  borderRadius: 4,
+  background: 'blue',
+  color: 'white',
+  cursor: 'pointer',
+  selectors: {
+    '&:hover': { background: 'darkblue' },
+    '&:disabled': { opacity: 0.5, cursor: 'not-allowed' },
+  },
+});
+
+// button.tsx
+import { button } from './button.css';
+export const Button = (props) => <button className={button} {...props} />;
+```
+
+### Theme contract — multi-theme
+```ts
+// theme.css.ts
+import { createTheme, createThemeContract } from '@vanilla-extract/css';
+
+export const vars = createThemeContract({
+  color: { brand: null, text: null, bg: null, border: null },
+  space: { xs: null, sm: null, md: null, lg: null, xl: null },
+  radius: { sm: null, md: null, lg: null },
+  font: { sans: null, mono: null },
+});
+
+export const lightTheme = createTheme(vars, {
+  color: { brand: '#0066ff', text: '#111', bg: '#fff', border: '#e0e0e0' },
+  space: { xs: '4px', sm: '8px', md: '16px', lg: '24px', xl: '32px' },
+  radius: { sm: '2px', md: '4px', lg: '8px' },
+  font: { sans: 'Inter, sans-serif', mono: 'JetBrains Mono, monospace' },
+});
+
+export const darkTheme = createTheme(vars, {
+  color: { brand: '#3399ff', text: '#fff', bg: '#0a0a0a', border: '#222' },
+  space: { xs: '4px', sm: '8px', md: '16px', lg: '24px', xl: '32px' },
+  radius: { sm: '2px', md: '4px', lg: '8px' },
+  font: { sans: 'Inter, sans-serif', mono: 'JetBrains Mono, monospace' },
+});
+
+// app.tsx
+<html className={isDark ? darkTheme : lightTheme}>
+```
+
+### Component using vars
+```ts
+// card.css.ts
+import { style } from '@vanilla-extract/css';
+import { vars } from './theme.css';
+
+export const card = style({
+  background: vars.color.bg,
+  color: vars.color.text,
+  border: `1px solid ${vars.color.border}`,
+  padding: vars.space.md,
+  borderRadius: vars.radius.lg,
+  fontFamily: vars.font.sans,
+});
+```
+
+### Recipes — variants (CVA-like)
+```ts
+// button.css.ts
+import { recipe, RecipeVariants } from '@vanilla-extract/recipes';
+import { vars } from './theme.css';
+
+export const button = recipe({
+  base: {
+    padding: vars.space.sm,
+    borderRadius: vars.radius.md,
+    cursor: 'pointer',
+    border: 'none',
+    fontFamily: vars.font.sans,
+  },
+  variants: {
+    intent: {
+      primary: { background: vars.color.brand, color: '#fff' },
+      secondary: { background: 'transparent', color: vars.color.brand,
+                   border: `1px solid ${vars.color.brand}` },
+      danger: { background: '#dc2626', color: '#fff' },
+    },
+    size: {
+      sm: { fontSize: 12, padding: vars.space.xs },
+      md: { fontSize: 14, padding: vars.space.sm },
+      lg: { fontSize: 18, padding: vars.space.md },
+    },
+    fullWidth: {
+      true: { width: '100%' },
+    },
+  },
+  compoundVariants: [
+    { variants: { intent: 'primary', size: 'lg' },
+      style: { fontWeight: 'bold' } },
+  ],
+  defaultVariants: { intent: 'primary', size: 'md' },
+});
+
+export type ButtonVariants = RecipeVariants<typeof button>;
+// type ButtonVariants = { intent?: 'primary' | 'secondary' | 'danger'; size?: ...; fullWidth?: boolean }
+
+// usage
+<button className={button({ intent: 'danger', size: 'lg' })}>Delete</button>
+```
+
+### Sprinkles — atomic CSS (Tailwind-like)
+```ts
+// sprinkles.css.ts
+import { defineProperties, createSprinkles } from '@vanilla-extract/sprinkles';
+
+const space = defineProperties({
+  properties: {
+    padding: { sm: 8, md: 16, lg: 24 },
+    margin: { sm: 8, md: 16, lg: 24 },
+  },
+  shorthands: { p: ['padding'], m: ['margin'] },
+});
+
+export const sprinkles = createSprinkles(space);
+
+// usage
+<div className={sprinkles({ p: 'md', m: 'sm' })}>...</div>
+```
+
+### Global style + reset
+```ts
+// reset.css.ts
+import { globalStyle } from '@vanilla-extract/css';
+
+globalStyle('html, body', {
+  margin: 0,
+  padding: 0,
+  fontFamily: 'system-ui, sans-serif',
+});
+
+globalStyle('*', {
+  boxSizing: 'border-box',
+});
+
+// 매 import 'one' 으로 reset 적용
+// app.tsx: import './reset.css';
+```
+
+### Dynamic value via createVar
+```ts
+// progress.css.ts
+import { createVar, style } from '@vanilla-extract/css';
+
+export const progressVar = createVar();
+
+export const bar = style({
+  width: progressVar,
+  background: 'blue',
+  height: 4,
+  transition: 'width 0.3s',
+});
+
+// progress.tsx
+import { assignInlineVars } from '@vanilla-extract/dynamic';
+
+<div
+  className={bar}
+  style={assignInlineVars({ [progressVar]: `${percent}%` })}
+/>
+// 매 runtime dynamic — CSS variable 로 변환.
+```
+
+### Style composition
+```ts
+import { style } from '@vanilla-extract/css';
+
+const base = style({ padding: 8, fontSize: 14 });
+const primary = style([base, { background: 'blue', color: 'white' }]);
+// 매 primary class = base class + extra rules.
+```
+
+### Next.js App Router setup
+```ts
+// next.config.js
+const { createVanillaExtractPlugin } = require('@vanilla-extract/next-plugin');
+const withVanillaExtract = createVanillaExtractPlugin();
+module.exports = withVanillaExtract({
+  // ... existing config
+});
+
+// app/layout.tsx
+import { lightTheme } from './theme.css';
+import './reset.css';
+
+export default function RootLayout({ children }) {
+  return <html className={lightTheme}>{children}</html>;
+}
+// 매 RSC 호환 — server component 에서 매 className 사용 가능.
+```
+
+## 매 결정 기준
+| 상황 | Approach |
+|---|---|
+| Next.js App Router (RSC) | vanilla-extract (built-in plugin). |
+| Type-safe theme tokens | `createThemeContract` + `createTheme`. |
+| CVA-style variants | `recipe`. |
+| Atomic / Tailwind-like | `sprinkles`. |
+| Runtime dynamic value | `createVar` + `assignInlineVars`. |
+| Component library 배포 | vanilla-extract (zero runtime). |
+
+**기본값**: `style` (single class), `recipe` (variants), `createThemeContract` (multi-theme), `createVar` (runtime dynamic).
+
+## 🔗 Graph
+- 부모: [[CSS_Architecture_and_Styling|CSS-in-JS]] · [[Zero-Runtime CSS-in-JS]]
+- 변형: [[Panda CSS]] · [[CSS Modules]]
+- 응용: [[Design System]] · [[React Server Components — 경계 의식]]
+- Adjacent: [[CVA]] · [[CSS_Architecture_and_Styling|Tailwind CSS]]
+
+## 🤖 LLM 활용
+**언제**: Next.js App Router (RSC), type-safe design system, component library 배포, multi-theme (light/dark/brand) 의.
+**언제 X**: 매 simple prototype (Tailwind 매 빠름), 매 highly-dynamic per-pixel value (CSS-in-JS runtime 가 더 적합), 매 already emotion / styled-components codebase 의 incremental migration 어려움.
+
+## ❌ 안티패턴
+- **Runtime value 직접 사용**: 매 `style({ width: dynamicWidth })` — `dynamicWidth` 매 build time 에 evaluable 해야. 매 runtime 매 `createVar`.
+- **`.css.ts` 의 conditional logic**: 매 `if (env.X)` 매 build-time evaluated — 매 runtime 분기 X.
+- **Theme class 의 dynamic apply 미숙**: 매 theme 변경 시 `<html className={isDark ? darkTheme : lightTheme}>` — 매 root 단위.
+- **plugin setup 누락**: 매 webpack/vite plugin 없으면 .css.ts 매 그냥 TS file 로 처리 — error.
+- **`recipe` 의 base 의 selector**: 매 `recipe` base 안의 `selectors` 매 매 supported 하나 매 syntax 주의.
+
+## 🧪 검증 / 중복
+- Verified (vanilla-extract.style 공식 문서, GitHub seek-oss/vanilla-extract).
+- 신뢰도 A.
+
+## 🕓 Changelog
+| 날짜 | 변경 |
+|---|---|
+| 2026-05-08 | Phase 1 |
+| 2026-05-10 | Manual cleanup — vanilla-extract API 전체 (style, recipe, theme contract, sprinkles, createVar) 추가 |