/* =====================================================
   BTP Community Blog — blog.css
   SAP Horizon Blue (#0854a0 primary, #0070f2 accent)
   다크모드: body.dark
   ===================================================== */

/* ===== CSS 변수 ===== */
:root {
  --blog-primary:    #0854a0;
  --blog-accent:     #0070f2;
  --blog-bg:         #f7f9fc;
  --blog-card-bg:    #ffffff;
  --blog-header-bg:  #ffffff;
  --blog-text:       #1d2d3d;
  --blog-text-light: #4a5568;
  --blog-muted:      #6b7888;
  --blog-border:     #e3e8ee;
  --blog-shadow:     0 1px 4px rgba(8, 84, 160, 0.07);
  --blog-shadow-hover: 0 4px 16px rgba(8, 84, 160, 0.13);
  --blog-radius:     10px;
  --blog-radius-sm:  6px;
  --blog-font:       'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --blog-code-bg:    #1a2233;
  --blog-header-h:   56px;
}

body.dark {
  --blog-bg:         #0f1419;
  --blog-card-bg:    #1a2230;
  --blog-header-bg:  #141d2b;
  --blog-text:       #e3e8ee;
  --blog-text-light: #a8b8c8;
  --blog-muted:      #7a8898;
  --blog-border:     #2a3a4e;
  --blog-shadow:     0 1px 4px rgba(0, 0, 0, 0.3);
  --blog-shadow-hover: 0 4px 16px rgba(0, 112, 242, 0.18);
  --blog-code-bg:    #0d1117;
}

/* ===== 전역 리셋 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--blog-font);
  background: var(--blog-bg);
  color: var(--blog-text);
  line-height: 1.6;
  transition: background 0.2s, color 0.2s;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--blog-accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

/* ===== 헤더 ===== */
.blog-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--blog-header-bg);
  border-bottom: 1px solid var(--blog-border);
  box-shadow: var(--blog-shadow);
  height: var(--blog-header-h);
}

.blog-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 로고 */
.blog-logo {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--blog-primary);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}
.blog-logo img { border-radius: 4px; }
.blog-logo span { display: none; }
@media (min-width: 480px) {
  .blog-logo span { display: inline; }
}

/* 메뉴 탭 */
.blog-tabs-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  flex: 1;
  min-width: 0;
  -webkit-overflow-scrolling: touch;
}
.blog-tabs-nav::-webkit-scrollbar { display: none; }

.blog-tab {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--blog-muted);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}
.blog-tab:hover {
  background: rgba(8, 84, 160, 0.07);
  color: var(--blog-primary);
  text-decoration: none;
}
.blog-tab.active {
  background: var(--blog-primary);
  color: #fff;
}

/* 헤더 우측 */
.blog-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* 검색 */
.blog-search-form {
  display: flex;
  align-items: center;
  border: 1px solid var(--blog-border);
  border-radius: 20px;
  overflow: hidden;
  background: var(--blog-bg);
  transition: border-color 0.15s;
}
.blog-search-form:focus-within { border-color: var(--blog-accent); }

.blog-search-input {
  border: none;
  background: transparent;
  color: var(--blog-text);
  font-family: var(--blog-font);
  font-size: 0.85rem;
  padding: 6px 10px;
  width: 140px;
  outline: none;
}
.blog-search-input::placeholder { color: var(--blog-muted); }

.blog-search-btn {
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 6px 10px 6px 4px;
  color: var(--blog-muted);
  display: flex;
  align-items: center;
}
.blog-search-btn:hover { color: var(--blog-accent); }

/* 다크모드 토글 */
.blog-theme-btn {
  border: 1px solid var(--blog-border);
  background: var(--blog-card-bg);
  color: var(--blog-muted);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.blog-theme-btn:hover { border-color: var(--blog-accent); color: var(--blog-accent); }

/* UI5 모드 버튼 */
.blog-ui5-btn {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border: 1.5px solid var(--blog-primary);
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--blog-primary);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}
.blog-ui5-btn:hover {
  background: var(--blog-primary);
  color: #fff;
  text-decoration: none;
}

/* 로그인/유저 영역 */
.blog-user-area { display: flex; align-items: center; }
.blog-login-btn {
  padding: 6px 14px;
  background: var(--blog-accent);
  color: #fff;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}
.blog-login-btn:hover { background: var(--blog-primary); text-decoration: none; }
.blog-user-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blog-primary);
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== 메인 컨테이너 ===== */
.blog-main {
  flex: 1;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
  padding: 24px 16px;
}

/* ===== 홈 ===== */
.blog-home {}

/* 검색 결과 안내 */
.blog-search-info {
  margin-bottom: 16px;
  color: var(--blog-muted);
  font-size: 0.9rem;
}

/* 카드 그리드 — 모바일 1열, 태블릿 2열, 데스크탑 3열 */
.blog-card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 640px) {
  .blog-card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .blog-card-grid { grid-template-columns: repeat(3, 1fr); }
}

/* 빈 상태 */
.blog-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--blog-muted);
  padding: 48px 0;
  font-size: 0.95rem;
}

/* ===== 카드 ===== */
.blog-card {
  background: var(--blog-card-bg);
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius);
  box-shadow: var(--blog-shadow);
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.15s;
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  box-shadow: var(--blog-shadow-hover);
  transform: translateY(-2px);
}

.blog-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
}
.blog-card-link:hover { text-decoration: none; }

/* 썸네일 16:9 */
.blog-card-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--blog-border);
}
.blog-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.25s;
}
.blog-card:hover .blog-card-thumb img { transform: scale(1.04); }

.blog-card-body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.blog-card-meta-top {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 20px;
}

.blog-card-menu-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  background: rgba(8, 84, 160, 0.09);
  color: var(--blog-primary);
  font-size: 0.75rem;
  font-weight: 600;
}
body.dark .blog-card-menu-badge {
  background: rgba(0, 112, 242, 0.18);
  color: #6ab0f5;
}

.blog-card-pinned { font-size: 0.85rem; }

.blog-card-title {
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--blog-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-summary {
  font-size: 0.84rem;
  color: var(--blog-text-light);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
  flex: 1;
}

.blog-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.blog-tag {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 10px;
  background: var(--blog-bg);
  border: 1px solid var(--blog-border);
  color: var(--blog-muted);
  font-size: 0.75rem;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.blog-tag:hover {
  background: var(--blog-accent);
  color: #fff;
  border-color: var(--blog-accent);
  text-decoration: none;
}

.blog-card-meta-bottom {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--blog-muted);
  margin-top: auto;
  padding-top: 4px;
  border-top: 1px solid var(--blog-border);
  flex-wrap: wrap;
}
.blog-card-author { font-weight: 500; color: var(--blog-text-light); }
.blog-card-date {}
.blog-card-stats {}

/* "더 보기" 버튼 */
.blog-load-more-wrap {
  text-align: center;
  margin-top: 32px;
}
.blog-load-more-btn {
  padding: 10px 32px;
  border: 1.5px solid var(--blog-primary);
  border-radius: 24px;
  background: transparent;
  color: var(--blog-primary);
  font-family: var(--blog-font);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.blog-load-more-btn:hover {
  background: var(--blog-primary);
  color: #fff;
}
.blog-load-more-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== 게시글 상세 ===== */
.blog-post-wrap {
  max-width: 760px;
  margin: 0 auto;
}

/* 삭제 배너 */
.blog-deleted-banner {
  background: #fff3cd;
  border: 1px solid #ffc107;
  border-radius: var(--blog-radius-sm);
  padding: 10px 16px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #664d03;
}
body.dark .blog-deleted-banner {
  background: #3a2a00;
  border-color: #c97c00;
  color: #ffe08a;
}

.blog-post {
  background: var(--blog-card-bg);
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius);
  padding: 32px 28px;
  box-shadow: var(--blog-shadow);
}

.blog-post-header { margin-bottom: 24px; }
.blog-post-header-meta { margin-bottom: 8px; }

.blog-post-menu-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  background: rgba(8, 84, 160, 0.09);
  color: var(--blog-primary);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
}
.blog-post-menu-badge:hover { background: var(--blog-primary); color: #fff; text-decoration: none; }

.blog-post-title {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.35;
  color: var(--blog-text);
  margin: 10px 0 14px;
}

.blog-post-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--blog-muted);
  flex-wrap: wrap;
}
.blog-post-author { font-weight: 600; color: var(--blog-text-light); }
.blog-post-modified { font-size: 0.8rem; }

.blog-post-tags { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 6px; }

/* 영상 링크 */
.blog-post-video-links {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.blog-video-btn {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.15s;
}
.blog-video-btn:hover { opacity: 0.85; text-decoration: none; }
.blog-video-youtube { background: #ff0000; color: #fff; }
.blog-video-instagram { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); color: #fff; }
.blog-video-tiktok { background: #010101; color: #fff; }

/* 게시글 본문 */
.blog-post-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--blog-text);
  word-break: break-word;
  overflow-wrap: break-word;
}

/* markdownContent — Quill 출력 스타일 */
.blog-post-content h1,
.blog-post-content h2,
.blog-post-content h3,
.blog-post-content h4 {
  margin: 1.6em 0 0.6em;
  font-weight: 700;
  line-height: 1.3;
  color: var(--blog-text);
}
.blog-post-content h1 { font-size: 1.5rem; border-bottom: 2px solid var(--blog-border); padding-bottom: 6px; }
.blog-post-content h2 { font-size: 1.25rem; }
.blog-post-content h3 { font-size: 1.1rem; }

.blog-post-content p { margin: 0 0 1em; }

.blog-post-content ul,
.blog-post-content ol {
  margin: 0 0 1em 1.6em;
}
.blog-post-content li { margin-bottom: 4px; }

.blog-post-content blockquote {
  border-left: 3px solid var(--blog-accent);
  margin: 1em 0;
  padding: 8px 16px;
  color: var(--blog-text-light);
  background: rgba(0, 112, 242, 0.05);
  border-radius: 0 var(--blog-radius-sm) var(--blog-radius-sm) 0;
}

.blog-post-content pre {
  background: var(--blog-code-bg);
  color: #c9d1d9;            /* github-dark 기본 fg — hljs 미적용 코드도 가독성 보장 */
  border-radius: var(--blog-radius-sm);
  padding: 14px 16px;
  overflow-x: auto;
  margin: 1em 0;
  font-size: 0.88rem;
  line-height: 1.6;
}
.blog-post-content pre code,
.blog-post-content pre code.hljs {
  color: inherit;            /* pre 색상 상속 — hljs 토큰 색은 더 구체 선택자라 우선 적용됨 */
  background: transparent;
  padding: 0;
}
.blog-post-content code {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.88em;
}
.blog-post-content :not(pre) > code {
  background: rgba(8, 84, 160, 0.08);
  color: var(--blog-primary);
  padding: 2px 5px;
  border-radius: 4px;
}
body.dark .blog-post-content :not(pre) > code {
  background: rgba(0, 112, 242, 0.15);
  color: #6ab0f5;
}

.blog-post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
  font-size: 0.9rem;
  overflow-x: auto;
  display: block;
}
.blog-post-content th,
.blog-post-content td {
  border: 1px solid var(--blog-border);
  padding: 7px 12px;
  text-align: left;
}
.blog-post-content th {
  background: rgba(8, 84, 160, 0.06);
  font-weight: 700;
}

.blog-post-content img {
  max-width: 100%;
  border-radius: var(--blog-radius-sm);
  margin: 1em auto;
}

.blog-post-content a {
  color: var(--blog-accent);
  text-decoration: underline;
}
.blog-post-content a:hover { color: var(--blog-primary); }

/* 게이팅 카드 (비로그인 1500자 끝) */
.blog-gating-card {
  text-align: center;
  background: var(--blog-card-bg);
  border: 2px dashed var(--blog-border);
  border-radius: var(--blog-radius);
  padding: 36px 24px;
  margin-top: 24px;
}
.blog-gating-icon { font-size: 2rem; margin-bottom: 10px; }
.blog-gating-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.blog-gating-desc { font-size: 0.9rem; color: var(--blog-muted); margin-bottom: 20px; }
.blog-gating-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* 버튼 공용 */
.blog-btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  background: var(--blog-accent);
  color: #fff;
  border-radius: 24px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s;
  white-space: nowrap;
}
.blog-btn-primary:hover { background: var(--blog-primary); text-decoration: none; }

.blog-btn-secondary {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  border: 1.5px solid var(--blog-border);
  color: var(--blog-text);
  border-radius: 24px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
  white-space: nowrap;
}
.blog-btn-secondary:hover { border-color: var(--blog-primary); color: var(--blog-primary); text-decoration: none; }

/* ===== 댓글 섹션 ===== */
.blog-comments-section {
  background: var(--blog-card-bg);
  border: 1px solid var(--blog-border);
  border-radius: var(--blog-radius);
  padding: 24px 28px;
  margin-top: 20px;
  box-shadow: var(--blog-shadow);
}
.blog-comments-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.blog-comments-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--blog-accent);
  color: #fff;
  border-radius: 12px;
  font-size: 0.8rem;
  padding: 1px 8px;
  font-weight: 600;
}

.blog-comments-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }

.blog-comment {
  padding: 12px 14px;
  border-radius: var(--blog-radius-sm);
  border: 1px solid var(--blog-border);
  background: var(--blog-bg);
}
.blog-comment-reply {
  margin-left: 20px;
  background: transparent;
  border-left: 3px solid var(--blog-border);
  border-top: none;
  border-right: none;
  border-bottom: none;
  border-radius: 0;
  padding-left: 16px;
}

.blog-comment-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.blog-comment-author { font-weight: 600; font-size: 0.88rem; color: var(--blog-text-light); }
.blog-comment-date { font-size: 0.8rem; color: var(--blog-muted); }
.blog-comment-edited { font-size: 0.78rem; color: var(--blog-muted); }
.blog-comment-content { font-size: 0.9rem; line-height: 1.6; white-space: pre-wrap; word-break: break-word; }

/* UI5 CTA */
.blog-ui5-cta {
  text-align: center;
  padding: 20px;
  border-top: 1px solid var(--blog-border);
  margin-top: 8px;
}
.blog-ui5-cta p { margin-bottom: 12px; font-size: 0.9rem; color: var(--blog-muted); }

/* 404 */
.blog-not-found {
  text-align: center;
  padding: 64px 24px;
}
.blog-not-found h1 { font-size: 1.5rem; margin-bottom: 12px; }
.blog-not-found p { color: var(--blog-muted); margin-bottom: 24px; }

/* ===== 푸터 ===== */
.blog-footer {
  background: var(--blog-header-bg);
  border-top: 1px solid var(--blog-border);
  padding: 16px;
  font-size: 0.82rem;
  color: var(--blog-muted);
}
.blog-footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.blog-footer-sep { color: var(--blog-border); }
.blog-footer a { color: var(--blog-muted); text-decoration: none; }
.blog-footer a:hover { color: var(--blog-accent); }

/* ===== 모바일 검색 입력 조정 ===== */
@media (max-width: 640px) {
  .blog-search-input { width: 90px; font-size: 0.82rem; }
  .blog-ui5-btn { padding: 5px 10px; font-size: 0.78rem; }
  .blog-post { padding: 20px 14px; }
  .blog-comments-section { padding: 18px 14px; }
  .blog-post-title { font-size: 1.25rem; }
}

/* ===== highlight.js 테마 보강 ===== */
/* github-dark CDN 자동 적용, pre > code 블록 배경만 통일 */
.hljs { background: var(--blog-code-bg) !important; }