docs(10_Wiki): 위키 구조 정리 — 언어 튜토리얼 카테고리 폴더 제거 + 신규 자산 동기화

Topic_CSS/Topic_HTML/Topic_JavaScript/Topic_Prompt/Topic_Comfyui 등 기존 카테고리 폴더를 정리하고,
Topic_Graphic/Dev 등 신규 산출물과 Topics 내부 세션/메모리 기록을 동기화.

10_Wiki/Dev/Topic_HOWTO/HOWTO_CSS_Fading_Buttons.md

@@ -0,0 +1,59 @@
+---
+id: howto-css-fading-buttons
+title: "How To - Fading Buttons"
+category: "Web_Recipes"
+status: "draft"
+verification_status: "unverified"
+canonical_id: ""
+aliases: ["fade in out button hover CSS"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.5
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: "Source page's three interactive demos (fade in, fade out, fade background) render their CSS in live iframes not captured by the text extractor — only the effect labels were retrieved."
+merge_history: []
+tags: ["howto", "css", "w3schools", "buttons", "animation"]
+raw_sources: ["https://www.w3schools.com/howto/howto_css_fading_buttons.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[HOWTO CSS Fading Buttons]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Like `[[HOWTO CSS Animate Buttons]]`, this page's actual `transition`/`opacity` CSS for its three named effects (fade in, fade out, fade background) was not retrievable through text extraction — only the effect labels were captured, so this entry records the page's scope honestly rather than fabricating plausible-but-unverified `transition: opacity` values. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Three named fade effects**: fade in on hover, fade out on hover, fade background on hover. [S1]
+- Specific implementation (which property transitions, duration, easing) could not be confirmed from the extracted text and is NOT included here to avoid fabrication. [S1]
+
+## 📖 세부 내용 (Details)
+- Only the three effect labels and "Try it Yourself »" markers were extracted; the live CSS lives in embedded iframe examples the extractor does not capture. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+없음 — 검증 불가로 인해 비교할 세부 내용이 부족함.
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — 코드 예제가 텍스트로 추출되지 않았습니다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+추출되지 않음 — 원문의 라이브 코드 예제가 iframe에 있어 텍스트로 캡처되지 않았습니다. 재방문 시 브라우저 스크린샷 또는 별도 렌더링 도구로 재확인 필요.
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** unverified
+- **출처 신뢰도:** B (W3Schools — widely used educational reference)
+- **신뢰 점수:** 0.50
+- **중복 검사 결과:** 신규 생성 (New discovery) — 콘텐츠 불완전, 재검증 필요.
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[W3Schools HOW TO]]
+- **관련 개념:** [[HOWTO CSS Animate Buttons]], [[HOWTO CSS Transition Hover]]
+- **참조 맥락:** CSS Buttons 섹션.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — How To - Fading Buttons — https://www.w3schools.com/howto/howto_css_fading_buttons.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from partial extraction of the W3Schools "How To - Fading Buttons" page — code examples not captured, flagged for re-verification (Astra wiki-curation, P-Reinforce v3.1 format).