/* ============================================================
   하투스과외 — 중고등 내신사례노트 게시판 (cases-note.css)
   board.css 디자인 토큰 그대로 재사용
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:        #1b2d4f;
  --navy-mid:    #243a5e;
  --navy-light:  #2d4a73;
  --accent:      #6b87b0;
  --warm-bg:     #f7f6f3;
  --white:       #ffffff;
  --gray-50:     #f9fafb;
  --gray-100:    #f3f4f6;
  --gray-200:    #e5e7eb;
  --gray-300:    #d1d5db;
  --gray-400:    #9ca3af;
  --gray-600:    #4b5563;
  --gray-800:    #1f2937;
  --text-main:   #1a1f2e;
  --text-sub:    #52596b;
  --text-light:  #8a919e;
  --radius-sm:   8px;
  --radius-md:   14px;
  --radius-lg:   22px;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.07);
  --shadow-md:   0 4px 16px rgba(0,0,0,.09);
  --transition:  0.18s ease;
}

body {
  font-family: 'Noto Sans KR', sans-serif;
  background: var(--warm-bg);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ─── 공통 레이아웃 ─────────────────────────────────────── */
.board-wrap {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── 사이트 헤더 ────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
  height: 56px;
}
.site-header__inner {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-header__logo {
  font-size: 1rem;
  font-weight: 800;
  color: var(--navy);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.site-header__home {
  font-size: 0.83rem;
  color: var(--text-sub);
  text-decoration: none;
  transition: color var(--transition);
}
.site-header__home:hover { color: var(--navy); }

/* ─── 게시판 히어로 ──────────────────────────────────────── */
.board-hero {
  padding: 72px 24px 56px;
  text-align: center;
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
}
.board-hero__label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.board-hero__title {
  font-size: clamp(1.7rem, 4.5vw, 2.6rem);
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.board-hero__desc {
  font-size: clamp(0.9rem, 2vw, 1rem);
  color: var(--text-sub);
  line-height: 1.75;
}

/* ─── 메인 섹션 ──────────────────────────────────────────── */
.board-section {
  padding: 56px 0 80px;
}
.board-count {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-bottom: 20px;
}
.board-count strong { color: var(--navy); font-weight: 700; }

/* ─── 목록 ───────────────────────────────────────────────── */
.board-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.board-item {
  border-top: 1px solid var(--gray-200);
}
.board-item:last-child { border-bottom: 1px solid var(--gray-200); }

.board-item__link {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 8px;
  text-decoration: none;
  transition: background var(--transition);
  border-radius: var(--radius-sm);
}
.board-item__link:hover { background: var(--gray-50); }
.board-item__link:hover .board-item__arrow {
  transform: translateX(4px);
  color: var(--navy);
}

/* 썸네일 */
.board-item__thumb {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
  background: var(--gray-100);
}
.board-item__thumb-placeholder {
  width: 80px;
  height: 60px;
  border-radius: 8px;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
  color: var(--gray-400);
}

/* 텍스트 영역 */
.board-item__body {
  flex: 1;
  min-width: 0;
}
.board-item__title {
  font-size: clamp(0.95rem, 2.2vw, 1.05rem);
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.45;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.board-item__sub {
  font-size: 0.84rem;
  color: var(--text-sub);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.board-item__date {
  font-size: 0.76rem;
  color: var(--text-light);
  margin-top: 6px;
}

/* 화살표 */
.board-item__arrow {
  font-size: 1.1rem;
  color: var(--gray-400);
  flex-shrink: 0;
  transition: transform var(--transition), color var(--transition);
}

/* ─── 빈 상태 / 오류 ─────────────────────────────────────── */
.board-empty {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-sub);
}
.board-empty__icon {
  display: block;
  font-size: 2.4rem;
  margin-bottom: 16px;
}
.board-empty p { font-size: 0.92rem; line-height: 1.7; }
.board-empty a {
  display: inline-block;
  margin-top: 16px;
  color: var(--navy);
  font-weight: 700;
  text-decoration: none;
}
.board-empty a:hover { text-decoration: underline; }

/* ─── 로딩 ───────────────────────────────────────────────── */
.board-loading {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-sub);
  font-size: 0.9rem;
}
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--navy);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── 페이지네이션 ───────────────────────────────────────── */
.board-pagination {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 48px;
}
.board-pagination__btn {
  padding: 8px 13px;
  border: 1.5px solid var(--gray-200);
  border-radius: 8px;
  background: var(--white);
  font-size: 0.83rem;
  font-family: inherit;
  cursor: pointer;
  color: var(--text-sub);
  transition: all var(--transition);
  line-height: 1;
}
.board-pagination__btn:hover:not(:disabled) {
  border-color: var(--navy);
  color: var(--navy);
}
.board-pagination__btn.active {
  background: var(--navy);
  color: white;
  border-color: var(--navy);
  font-weight: 700;
}
.board-pagination__btn:disabled { opacity: 0.35; cursor: not-allowed; }

/* ─── 상세 페이지 ─────────────────────────────────────────── */

/* 브레드크럼 */
.post-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-light);
  padding: 28px 0 0;
  flex-wrap: wrap;
}
.post-breadcrumb a {
  color: var(--text-light);
  text-decoration: none;
  transition: color var(--transition);
}
.post-breadcrumb a:hover { color: var(--navy); }

/* 글 헤더 */
.post-header {
  padding: 32px 0 0;
}
.post-header__date {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-bottom: 12px;
}
.post-header__title {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.03em;
  line-height: 1.3;
  margin-bottom: 14px;
}
.post-header__sub {
  font-size: clamp(0.95rem, 2.2vw, 1.1rem);
  color: var(--text-sub);
  line-height: 1.6;
  margin-top: 8px;
}

/* 대표이미지 */
.post-cover {
  display: block;
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin: 32px 0;
}

/* 본문 */
.post-body {
  padding: 8px 0 40px;
  font-size: clamp(1rem, 2.2vw, 1.08rem);
  line-height: 1.9;
  color: var(--text-main);
}
.post-body p  { margin-bottom: 1.4em; }
.post-body h2 { font-size: 1.35rem; font-weight: 800; color: var(--navy); margin: 2em 0 0.8em; letter-spacing: -0.02em; }
.post-body h3 { font-size: 1.12rem; font-weight: 700; color: var(--navy); margin: 1.6em 0 0.6em; }
.post-body ul,
.post-body ol { padding-left: 1.5em; margin-bottom: 1.4em; }
.post-body li { margin-bottom: 0.5em; }
.post-body strong { font-weight: 700; color: var(--text-main); }
.post-body em    { font-style: italic; color: var(--text-sub); }
.post-body hr { border: none; border-top: 2px solid var(--gray-200); margin: 2.5em 0; }
.post-body a { color: var(--navy); text-decoration: underline; }
.post-body a:hover { opacity: 0.75; }
.post-body blockquote {
  margin: 1.5em 0;
  padding: 16px 20px;
  border-left: 4px solid var(--navy);
  background: var(--gray-50);
  border-radius: 0 8px 8px 0;
  color: var(--text-sub);
  font-style: italic;
}

/* ─── CTA 블록 ────────────────────────────────────────────── */
.post-cta {
  margin: 40px 0 32px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
}

.post-cta__primary-wrap {
  padding: 40px 36px 32px;
  background: linear-gradient(135deg, #f0f4fa 0%, #ffffff 100%);
}
.post-cta__eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.post-cta__body {
  font-size: 0.97rem;
  color: var(--text-sub);
  line-height: 1.75;
  margin-bottom: 10px;
}
.post-cta__badges {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  margin: 20px 0 24px;
}
.post-cta__badge {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--navy);
  background: rgba(27,45,79,0.07);
  padding: 4px 10px;
  border-radius: 20px;
}
.post-cta__badge-dot {
  color: var(--gray-300);
  font-size: 0.9rem;
  margin: 0 2px;
}
.post-cta__actions { display: flex; flex-direction: column; gap: 10px; }
.post-cta__btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  background: var(--navy);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 800;
  border-radius: 50px;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: background var(--transition), transform var(--transition);
  max-width: 320px;
}
.post-cta__btn-primary:hover {
  background: var(--navy-light);
  transform: translateY(-1px);
}
.post-cta__tel {
  font-size: 0.82rem;
  color: var(--text-light);
}
.post-cta__tel-link {
  color: var(--navy);
  font-weight: 700;
  text-decoration: none;
}
.post-cta__tel-link:hover { text-decoration: underline; }

.post-cta__divider {
  height: 1px;
  background: var(--gray-200);
  margin: 0 36px;
}

.post-cta__secondary-wrap {
  padding: 24px 36px 28px;
}
.post-cta__secondary-label {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-bottom: 10px;
}
.post-cta__btn-secondary {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
  transition: opacity var(--transition);
}
.post-cta__btn-secondary:hover { opacity: 0.7; }

/* ─── 이전/다음 글 내비게이션 ────────────────────────────── */
.post-nav {
  margin: 32px 0 60px;
  border-top: 1px solid var(--gray-200);
  padding-top: 24px;
}
.post-nav__list-btn {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-sub);
  text-decoration: none;
  margin-bottom: 20px;
  transition: color var(--transition);
}
.post-nav__list-btn:hover { color: var(--navy); }
.post-nav__siblings {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.post-nav__item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 16px 18px;
  background: var(--gray-50);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition);
}
.post-nav__item:hover { background: var(--gray-100); }
.post-nav__item.next { text-align: right; }
.post-nav__label {
  font-size: 0.75rem;
  color: var(--text-light);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.post-nav__title {
  font-size: 0.88rem;
  color: var(--text-main);
  font-weight: 600;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-nav__empty {
  font-size: 0.82rem;
  color: var(--text-light);
  padding: 16px 18px;
}

/* ─── 404 / NOT FOUND ────────────────────────────────────── */
.not-found-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60vh;
  padding: 40px 24px;
}
.not-found-box {
  text-align: center;
  max-width: 400px;
}
.not-found-box__icon { font-size: 3rem; display: block; margin-bottom: 20px; }
.not-found-box h1 { font-size: 1.2rem; font-weight: 700; color: var(--navy); margin-bottom: 12px; }
.not-found-box p { font-size: 0.9rem; color: var(--text-sub); line-height: 1.7; margin-bottom: 20px; }
.not-found-box a {
  color: var(--navy);
  font-weight: 700;
  text-decoration: none;
}
.not-found-box a:hover { text-decoration: underline; }

/* ─── 사이트 푸터 ─────────────────────────────────────────── */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.65);
  text-align: center;
  padding: 40px 24px;
  font-size: 0.83rem;
  line-height: 1.7;
}
.site-footer a { color: rgba(255,255,255,0.85); text-decoration: none; }
.site-footer a:hover { color: #ffffff; }

/* ─── 반응형: 태블릿 ─────────────────────────────────────── */
@media (max-width: 768px) {
  .board-hero { padding: 56px 24px 44px; }
  .board-section { padding: 44px 0 64px; }
  .post-cta__primary-wrap  { padding: 32px 24px 24px; }
  .post-cta__secondary-wrap { padding: 20px 24px 24px; }
  .post-cta__divider { margin: 0 24px; }
  .post-nav__siblings { grid-template-columns: 1fr; }
  .post-nav__item.next { text-align: left; }
}

/* ─── 반응형: 모바일 ─────────────────────────────────────── */
@media (max-width: 480px) {
  .board-wrap { padding: 0 16px; }
  .board-hero { padding: 44px 16px 36px; }
  .board-section { padding: 36px 0 56px; }
  .board-item__link { gap: 12px; padding: 16px 4px; }
  .board-item__thumb,
  .board-item__thumb-placeholder { width: 64px; height: 48px; font-size: 1.2rem; }
  .post-cta__primary-wrap  { padding: 24px 20px 20px; }
  .post-cta__secondary-wrap { padding: 16px 20px 20px; }
  .post-cta__divider { margin: 0 20px; }
  .post-cta__btn-primary { max-width: 100%; width: 100%; }
}