Tailwind CSS v4 마이그레이션 및 CSS-first 설정 전환 by 2YH02 · Pull Request #11 · 2YH02/k-pullup

2YH02 · 2026-02-10T00:27:00Z

개요

Tailwind CSS를 v3에서 v4로 마이그레이션하고, 설정 방식을 CSS-first로 전환

주요 변경사항

Tailwind CSS 업그레이드
- tailwindcss -> ^4.1.18
- @tailwindcss/postcss 추가
PostCSS 설정 변경
- postcss.config.mjs에서 tailwindcss 플러그인을 @tailwindcss/postcss로 교체
CSS-first 설정으로 전환
- app/globals.css에 @theme, @custom-variant, @plugin 설정 이관
- tailwind.config.ts 제거
v4 유틸리티 규칙에 맞게 일부 클래스 조정
- 예: bg-50% -> bg-size-50

검증

yarn lint 실행 (기존 경고 유지)
yarn build 실행 통과

참고/영향

자동 마이그레이션 도구 적용으로 스타일 관련 파일 변경 범위가 넓습니다.
기능 로직 변경은 없고, 스타일 시스템/빌드 설정 중심 변경입니다.

fix: 드로워 드래그 영역을 핸들로만 제한하여 스크롤 충돌 해결

vercel · 2026-02-10T00:27:07Z

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
k-pullup	Ignored		Feb 10, 2026 0:47am

qodo-code-review · 2026-02-10T00:27:29Z

Review Summary by Qodo

Tailwind CSS v4 migration with CSS-first configuration and utility class updates

✨ Enhancement

Walkthroughs

Description

• Migrate Tailwind CSS from v3 to v4 with CSS-first configuration
• Update PostCSS config to use @tailwindcss/postcss plugin
• Refactor globals.css with @theme, @custom-variant, @utility directives
• Update utility class names for v4 compatibility (e.g., shadow-sm, outline-hidden, rounded-sm)
• Add AGENTS.md documentation for coding agent guidelines
• Add PR template for standardized pull request format

Diagram

flowchart LR
  A["Tailwind v3<br/>Config-based"] -->|Upgrade| B["Tailwind v4<br/>CSS-first"]
  C["postcss.config.mjs<br/>tailwindcss plugin"] -->|Replace| D["@tailwindcss/postcss<br/>plugin"]
  E["tailwind.config.ts<br/>JS configuration"] -->|Migrate to| F["globals.css<br/>@theme directives"]
  G["Old utility classes<br/>shadow, outline-none"] -->|Update| H["v4 utilities<br/>shadow-sm, outline-hidden"]
  B --> I["Updated components<br/>& pages"]
  D --> I
  F --> I
  H --> I

File Changes

1. app/globals.css ✨ Enhancement +256/-97

Migrate to Tailwind v4 CSS-first configuration

app/globals.css

2. postcss.config.mjs ⚙️ Configuration changes +1/-1

Replace tailwindcss with @tailwindcss/postcss plugin

postcss.config.mjs

3. package.json Dependencies +2/-1

Upgrade tailwindcss to v4 and add @tailwindcss/postcss

package.json

View more (49)

4. AGENTS.md 📝 Documentation +111/-0

Add comprehensive coding agent guidelines and rules

AGENTS.md

5. .github/pull_request_template.md 📝 Documentation +38/-0

Add standardized PR template with checklist

.github/pull_request_template.md

6. components/common/toast.tsx ✨ Enhancement +4/-4

Update Tailwind v4 utility class syntax

components/common/toast.tsx

7. components/ui/select.tsx ✨ Enhancement +4/-4

Update to v4 CSS variable and utility syntax

components/ui/select.tsx

8. components/pages/pullup/comments.tsx ✨ Enhancement +8/-8

Update stroke utility class syntax for v4

components/pages/pullup/comments.tsx

9. components/pages/home/moment-list.tsx ✨ Enhancement +4/-4

Replace break-words with wrap-break-word utility

components/pages/home/moment-list.tsx

10. components/layout/roadview.tsx ✨ Enhancement +3/-3

Update rounded and z-index utility syntax

components/layout/roadview.tsx

11. components/pages/pullup/button-list.tsx ✨ Enhancement +4/-4

Replace w-[1px] with w-px utility class

components/pages/pullup/button-list.tsx

12. app/mypage/page.tsx ✨ Enhancement +3/-3

Update dark mode modifier syntax for v4

app/mypage/page.tsx

13. components/pages/search/around-search.tsx ✨ Enhancement +2/-2

Update gradient and backdrop-blur utilities

components/pages/search/around-search.tsx

14. components/ui/dialog.tsx ✨ Enhancement +1/-1

Update rounded and outline utility classes

components/ui/dialog.tsx

15. components/ui/table.tsx ✨ Enhancement +3/-3

Update pseudo-class selector syntax for v4

components/ui/table.tsx

16. components/pages/admin/image-gallery.tsx ✨ Enhancement +2/-2

Update backdrop-blur utility to backdrop-blur-xs

components/pages/admin/image-gallery.tsx

17. app/social/chat/[code]/chat-detail-client.tsx ✨ Enhancement +2/-2

Replace shadow-sm with shadow-xs utility

app/social/chat/[code]/chat-detail-client.tsx

18. components/layout/kakao-map.tsx ✨ Enhancement +2/-2

Update z-index and shadow utility syntax

components/layout/kakao-map.tsx

19. components/pages/home/slide-icons.tsx ✨ Enhancement +2/-2

Update SVG data-name attribute for v4

components/pages/home/slide-icons.tsx

20. app/pullup/[id]/chat/pullup-chat-client.tsx ✨ Enhancement +2/-2

Replace shadow-sm with shadow-xs utility

app/pullup/[id]/chat/pullup-chat-client.tsx

21. components/layout/move-map-input.tsx ✨ Enhancement +2/-2

Update z-index and dark mode modifier syntax

components/layout/move-map-input.tsx

22. app/admin/admin-client.tsx ✨ Enhancement +2/-2

Update backdrop-blur and shadow utilities

app/admin/admin-client.tsx

23. components/common/list-item.tsx ✨ Enhancement +3/-3

Replace flex-shrink-0 with shrink-0 utility

components/common/list-item.tsx

24. components/layout/map-context-menu.tsx ✨ Enhancement +2/-2

Update z-index utility syntax for v4

components/layout/map-context-menu.tsx

25. components/ui/badge.tsx ✨ Enhancement +3/-3

Update outline and shadow utility classes

components/ui/badge.tsx

26. components/pages/search/search-list.tsx ✨ Enhancement +2/-2

Update rounded utility class syntax

components/pages/search/search-list.tsx

27. components/ui/input.tsx ✨ Enhancement +1/-1

Update shadow and outline utilities

components/ui/input.tsx

28. components/pages/register/set-description.tsx ✨ Enhancement +1/-1

Update rounded and outline utility syntax

components/pages/register/set-description.tsx

29. components/pages/admin/location-comparison.tsx ✨ Enhancement +1/-1

Update grid template column syntax

components/pages/admin/location-comparison.tsx

30. components/common/toggle-button.tsx ✨ Enhancement +2/-2

Update outline and RTL modifier syntax

components/common/toggle-button.tsx

31. app/search/around/around-client.tsx ✨ Enhancement +1/-1

Update gradient utility to bg-linear-to-br

app/search/around/around-client.tsx

32. components/pages/register/upload-image.tsx ✨ Enhancement +1/-1

Replace shadow-sm with shadow-xs utility

components/pages/register/upload-image.tsx

33. components/common/text.tsx ✨ Enhancement +3/-3

Update leading utility to leading-normal

components/common/text.tsx

34. components/pages/mypage/bookmark/bookmark-list.tsx ✨ Enhancement +2/-2

Replace break-words with wrap-break-word

components/pages/mypage/bookmark/bookmark-list.tsx

35. components/common/side-main.tsx ✨ Enhancement +1/-1

Replace shadow-sm with shadow-xs utility

components/common/side-main.tsx

36. components/common/input.tsx ✨ Enhancement +1/-1

Update outline utility class syntax

components/common/input.tsx

37. components/pages/pullup/moment/add-moment-page.tsx ✨ Enhancement +1/-1

Update outline utility class syntax

components/pages/pullup/moment/add-moment-page.tsx

38. components/pages/pullup/moment/moment-item.tsx ✨ Enhancement +1/-1

Replace break-words with wrap-break-word

components/pages/pullup/moment/moment-item.tsx

39. components/pages/pullup/description.tsx ✨ Enhancement +1/-1

Update rounded and outline utilities

components/pages/pullup/description.tsx

40. app/ranking/ranking-client.tsx ✨ Enhancement +1/-1

Update background-size utility syntax

app/ranking/ranking-client.tsx

41. app/search/search-client.tsx ✨ Enhancement +1/-1

Update gradient utility to bg-linear-to-br

app/search/search-client.tsx

42. components/common/footer.tsx ✨ Enhancement +1/-1

Update max-width utility to CSS variable syntax

components/common/footer.tsx

43. components/common/event-popup.tsx ✨ Enhancement +1/-1

Update rounded utility class syntax

components/common/event-popup.tsx

44. components/pages/home/notice-slide.tsx ✨ Enhancement +1/-1

Replace shadow with shadow-sm utility

components/pages/home/notice-slide.tsx

45. components/common/textarea.tsx ✨ Enhancement +1/-1

Update outline utility class syntax

components/common/textarea.tsx

46. components/pages/admin/location-with-address.tsx ✨ Enhancement +1/-1

Replace flex-shrink-0 with shrink-0

components/pages/admin/location-with-address.tsx

47. components/pages/pullup/address-button.tsx ✨ Enhancement +1/-1

Replace break-words with wrap-break-word

components/pages/pullup/address-button.tsx

48. components/pages/home/search-input.tsx ✨ Enhancement +1/-1

Replace shadow with shadow-sm utility

components/pages/home/search-input.tsx

49. components/common/button.tsx ✨ Enhancement +2/-2

Update rounded and outline utility syntax

components/common/button.tsx

50. .pnp.cjs Additional files +1928/-1789

...

.pnp.cjs

51. components/pages/pullup/upload-image.tsx Additional files +1/-1

...

components/pages/pullup/upload-image.tsx

52. tailwind.config.ts Additional files +0/-141

...

tailwind.config.ts

qodo-code-review · 2026-02-10T00:33:49Z

Code Review by Qodo

🐞 Bugs (3) 📘 Rule violations (0) 📎 Requirement gaps (0)

✅ 1. ~~Z-index scale regressions~~ 🐞 Bug ⛯ Reliability

Description

• Several overlays/buttons were changed from arbitrary z-index classes (e.g. z-[60]) to
  scale-based classes (z-60, z-61, z-99, z-100, z-28, mo:z-2).
• The repo does not define any z-index theme tokens in app/globals.css, so these new scale classes
  have no project-local definition; they may not produce the intended stacking and can cause
  overlays/menus/toasts to appear behind other UI.
• Impacted UX includes: map loading dimmer, map context menu layering, roadview controls, toast
  visibility, and mobile map search button stacking.

Code

components/layout/kakao-map.tsx[R286-289]

+        <div className="z-60 absolute top-0 left-0 w-dvw h-dvh bg-[#ffffffb2] flex items-center justify-center">
         <div>
           <LoadingIcon className="m-0" />
         </div>

Evidence
The code now relies on non-default-looking z-* scale classes (60/61/99/100/28/2) across key
overlay surfaces. In this repo, app/globals.css defines theme tokens for colors/shadows/animations
but does not define any z-index tokens that would make z-60, z-99, etc. reliably map to a value,
so stacking behavior is at risk.
components/layout/kakao-map.tsx[285-299]
components/layout/map-context-menu.tsx[21-34]
components/layout/roadview.tsx[189-204]
components/common/toast.tsx[16-23]
components/layout/move-map-input.tsx[99-106]
app/globals.css[8-47]

Agent prompt

The issue below was found during a code review. Follow the provided context and guidance below and implement a solution

## Issue description
Several UI overlays were migrated from arbitrary z-index utilities (like `z-[60]`) to scale-based classes (`z-60`, `z-99`, `z-100`, `mo:z-2`, etc.). The repo’s `@theme` block does not define any z-index tokens, so these classes may not produce the intended stacking order.
### Issue Context
This impacts critical overlay surfaces (Kakao map loading mask, map context menu, roadview controls/badges, toast viewport, mobile move-map button), where incorrect z-index causes UI to render behind other layers.
### Fix Focus Areas
- components/layout/kakao-map.tsx[285-299]
- components/layout/map-context-menu.tsx[21-34]
- components/layout/roadview.tsx[189-204]
- components/common/toast.tsx[16-23]
- components/layout/move-map-input.tsx[99-106]
- app/globals.css[8-47]

ⓘ Copy this prompt and use it to remediate the issue with your preferred AI generation tools

✅ 2. ~~Broken table selectors~~ 🐞 Bug ✓ Correctness

Description

• components/ui/table.tsx rewrites a Tailwind selector that targets checkbox elements into
  *:[[role=checkbox]]:translate-y-[2px], which is inconsistent with the rest of the file’s selector
  style and is unlikely to match the original intent.
• TableFooter also changes from applying border-b-0 to the last ` child to applying last:` to
  the `` itself, which likely won’t remove the last-row border.
• Result: checkbox alignment and table footer borders can regress anywhere this shared Table
  component is used.

Code

components/ui/table.tsx[R75-76]

+      "h-10 px-2 text-left align-middle font-medium text-muted-foreground [&:has([role=checkbox])]:pr-0 *:[[role=checkbox]]:translate-y-[2px]",
     className

Evidence

The Table component uses Tailwind arbitrary selectors elsewhere (e.g.
"[&_tr:last-child]:border-0"). The new *:[[role=checkbox]]:... syntax stands out as a
malformed/incorrect conversion and the last:[&>tr] change alters selector semantics for footer row
borders.

components/ui/table.tsx[42-46]
components/ui/table.tsx[72-76]
components/ui/table.tsx[87-91]

Agent prompt

The issue below was found during a code review. Follow the provided context and guidance below and implement a solution

## Issue description
The Table component contains selector conversions that likely break Tailwind selector parsing and/or change semantics:
- `*:[[role=checkbox]]:translate-y-[2px]` is likely malformed and may not apply.
- `last:[&amp;amp;&amp;gt;tr]:border-b-0` changes which element `last:` applies to.
### Issue Context
This is a shared primitive (`components/ui/table.tsx`). Any regressions will propagate across admin and any table usage.
### Fix Focus Areas
- components/ui/table.tsx[42-46]
- components/ui/table.tsx[72-76]
- components/ui/table.tsx[87-91]

ⓘ Copy this prompt and use it to remediate the issue with your preferred AI generation tools

3. Conflicting primary token 🐞 Bug ✓ Correctness

Description

• app/globals.css defines --color-primary as #f9b4ab inside @theme, but later overrides
  --color-primary to #fab4ab in a :root block.
• This makes the theme token definition misleading and can cause inconsistent results depending on
  which layer wins in the cascade.
• It’s easy for future changes to accidentally rely on the wrong value, especially during a Tailwind
  v4 migration where CSS variables drive many utilities.

Code

app/globals.css[R210-214]

+  :root {
+    --background: white;
+    --color: #232323;
+    --color-primary: #fab4ab;
+  }

Evidence

The same CSS variable is assigned two different values in the same stylesheet: once in @theme and
again in @layer utilities :root. This is a concrete conflict and will override one of the intended
definitions.

app/globals.css[8-12]
app/globals.css[209-214]

Agent prompt

The issue below was found during a code review. Follow the provided context and guidance below and implement a solution

## Issue description
`--color-primary` is defined twice with different values (`#f9b4ab` in `@theme`, `#fab4ab` in `@layer utilities :root`). This creates a real cascade conflict and makes the Tailwind theme misleading.
### Issue Context
Tailwind v4 relies heavily on CSS variables for theme tokens; conflicting definitions can lead to inconsistent colors and hard-to-debug styling.
### Fix Focus Areas
- app/globals.css[8-12]
- app/globals.css[209-214]

ⓘ Copy this prompt and use it to remediate the issue with your preferred AI generation tools

ⓘ The new review experience is currently in Beta. Learn more

components/layout/kakao-map.tsx

components/ui/table.tsx

2YH02 and others added 6 commits December 13, 2025 22:33

Merge pull request #10 from 2YH02/develop

01919fc

fix: 드로워 드래그 영역을 핸들로만 제한하여 스크롤 충돌 해결

Merge branch 'develop'

beca64e

chore: add agents guide and update pnp

86a9b74

chore: Tailwind CSS v4 CSS-first 설정으로 마이그레이션

4213fec

docs: AGENTS 커밋 및 로그 확인 규칙 추가

6792bf0

docs: PR 템플릿 및 PR 작성 규칙 추가

bc64b9c

qodo-code-review bot reviewed Feb 10, 2026

View reviewed changes

components/layout/kakao-map.tsx Show resolved Hide resolved

components/ui/table.tsx Outdated Show resolved Hide resolved

2YH02 added 3 commits February 10, 2026 09:41

refactor: 미사용 Table UI 컴포넌트 제거

94b33ca

fix: z-index 토큰 추가로 오버레이 레이어링 안정화

528bd7e

fix: color-primary 토큰 중복 정의 제거

86186c8

2YH02 merged commit 81f51f3 into develop Feb 10, 2026
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Tailwind CSS v4 마이그레이션 및 CSS-first 설정 전환#11

Tailwind CSS v4 마이그레이션 및 CSS-first 설정 전환#11
2YH02 merged 9 commits intodevelopfrom
upgrade-tailwind-v4

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2YH02 commented Feb 10, 2026

개요

주요 변경사항

검증

참고/영향

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Review Summary by Qodo

Walkthroughs

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