/* ==========================================================================
   더밸류연구소 (THE VALUE METRIA) - Subpages Stylesheet (pages.css)
   Independent Research, Data Board, Insights, About Pages
   ========================================================================== */

/* Subpage Header Banner (요청사항 5: 각 메뉴 상단 소개 영역 어두운 배경을 브랜드 가이드 #032245 및 #0E6EB8로 산뜻하게 조정) */
.subpage-hero {
  background: linear-gradient(135deg, #032245 0%, #093c72 55%, #0e6eb8 100%);
  color: var(--color-white);
  padding: 64px 0 54px;
  position: relative;
  overflow: hidden;
}

.subpage-hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 98, 184, 0.25) 0%, rgba(0, 0, 0, 0) 70%);
  pointer-events: none;
}

.subpage-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: #94a3b8;
  margin-bottom: 14px;
}

.subpage-breadcrumb a:hover {
  color: #38bdf8;
}

.subpage-hero-title {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 10px;
}

.subpage-hero-desc {
  font-size: 1.05rem;
  color: #cbd5e1;
  max-width: 680px;
}

/* Sub Navigation Tabs */
.sub-nav-bar {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: var(--header-height);
  z-index: 900;
}

.sub-nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
  overflow-x: auto;
}

.sub-nav-item {
  padding: 16px 4px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-muted);
  position: relative;
  white-space: nowrap;
}

.sub-nav-item:hover,
.sub-nav-item.active {
  color: var(--color-primary);
}

.sub-nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
}

/* Subpage Control Bar (Search & Sort) */
.content-control-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}

.total-count-badge {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-navy);
}

.total-count-badge strong {
  color: var(--color-primary);
}

.search-input-group {
  display: flex;
  align-items: center;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  width: 280px;
  transition: var(--transition);
}

.search-input-group:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 98, 184, 0.1);
}

.search-input-group input {
  width: 100%;
  font-size: 0.9rem;
}

.search-input-group button {
  color: var(--color-muted);
}

/* Data Table Component (게시판 형태 - Slide 9 필수요소: 조회수 및 첨부파일 다운로드수) */
.data-table-wrapper {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
}

.board-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.board-table th {
  background-color: #f8fafc;
  padding: 16px 20px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-navy);
  border-bottom: 1px solid var(--color-border);
}

.board-table td {
  padding: 18px 20px;
  font-size: 0.94rem;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-body);
  vertical-align: middle;
}

.board-table tr:hover td {
  background-color: #f8fbff;
}

.board-table tr:last-child td {
  border-bottom: none;
}

.board-title-cell {
  font-weight: 600;
  color: var(--color-navy);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.board-title-cell:hover .board-main-title {
  color: var(--color-primary);
}

.board-main-title {
  font-size: 1.02rem;
  font-weight: 700;
}

.board-sub-title {
  font-size: 0.86rem;
  color: var(--color-muted);
  font-weight: 400;
}

.file-download-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: #f0fdf4;
  color: #15803d;
  border: 1px solid #bbf7d0;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.file-download-badge:hover {
  background: #15803d;
  color: var(--color-white);
}

.file-download-badge i {
  font-size: 0.9rem;
}

/* Pagination */
.pagination-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 40px;
}

.page-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-dark);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.page-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.page-btn.active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* ==========================================================================
   About Page Specifics (Slide 11: CEO 인사말, VISION, HISTORY, 오시는 길)
   ========================================================================== */
.about-section-block {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: 48px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 40px;
}

.about-block-title {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--color-border);
}

/* CEO Message */
.ceo-quote-box {
  background: #f8fafc;
  border-left: 4px solid var(--color-primary);
  padding: 24px 28px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1.7;
  margin-bottom: 28px;
}

.ceo-body-text {
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--color-body);
  margin-bottom: 20px;
}

.ceo-sign-box {
  text-align: right;
  margin-top: 36px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-navy);
}

/* Vision 3 Core Pillars */
.vision-cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 30px;
}

.vision-card {
  background: #f8fafc;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 32px 26px;
  text-align: center;
  transition: var(--transition);
}

.vision-card:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.vision-icon-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 18px;
}

.vision-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 12px;
}

.vision-desc {
  font-size: 0.94rem;
  color: var(--color-body);
  line-height: 1.6;
}

/* History Timeline (스토리보드 지시: 2010년 10월 투자교육 사업 시작 링크 포함) */
.history-timeline {
  position: relative;
  padding-left: 36px;
  margin-top: 24px;
}

.history-timeline::before {
  content: '';
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 10px;
  width: 2px;
  background-color: var(--color-border);
}

.history-item {
  position: relative;
  margin-bottom: 32px;
}

.history-dot {
  position: absolute;
  left: -32px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-primary);
}

.history-year {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 8px;
}

.history-content {
  font-size: 1rem;
  color: var(--color-body);
  line-height: 1.7;
}

.history-highlight-badge {
  background: #fef3c7;
  color: #b45309;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-right: 6px;
}

.history-edu-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--color-primary);
  font-weight: 700;
  margin-left: 8px;
  text-decoration: underline;
}

/* Map & Location (오시는 길) */
.map-container-box {
  width: 100%;
  height: 380px;
  background-color: #e2e8f0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 28px;
  position: relative;
  border: 1px solid var(--color-border);
}

.map-placeholder-ui {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #eef2f6 0%, #dbeafe 100%);
  color: var(--color-navy);
  text-align: center;
  padding: 20px;
}

.map-placeholder-ui i {
  font-size: 3rem;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.location-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.location-card {
  background: #f8fafc;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 22px;
}

.location-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.location-card-title i {
  color: var(--color-primary);
}

.location-card-desc {
  font-size: 0.94rem;
  color: var(--color-body);
  line-height: 1.7;
}

/* Responsive for Subpages */
@media (max-width: 900px) {
  .vision-cards-row {
    grid-template-columns: 1fr;
  }
  .location-info-grid {
    grid-template-columns: 1fr;
  }
  .about-section-block {
    padding: 30px 20px;
  }
}

/* ==========================================================================
   Data Full Article View (요청사항 7: 데이터 상세 페이지 확대 - 일반 기사 상세 페이지 레이아웃)
   ========================================================================== */
.data-article-view {
  display: none;
  width: 100%;
}

.data-article-view.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

.data-article-top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}

.btn-back-to-list {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: #f1f5f9;
  color: var(--color-navy);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-back-to-list:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  transform: translateX(-3px);
}

.data-article-header {
  margin-bottom: 32px;
}

.data-article-badge-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.data-article-title {
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1.35;
  letter-spacing: -0.8px;
  margin-bottom: 14px;
  word-break: keep-all;
}

.data-article-subtitle {
  font-size: 1.2rem;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  word-break: keep-all;
}

.data-article-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 16px 24px;
  background: #f8fafc;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: 0.92rem;
  color: var(--color-muted);
}

.data-article-meta-left {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.data-article-meta-left span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.data-article-meta-left strong {
  color: var(--color-navy);
}

.data-article-meta-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-action-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--color-body);
  background: var(--color-white);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-action-pill:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Premium Download Box in Article */
.data-article-download-card {
  margin: 36px 0 44px;
  background: linear-gradient(135deg, #f0f7ff 0%, #e8f1f9 100%);
  border: 2px solid #bfdbfe;
  border-radius: var(--radius-lg);
  padding: 28px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  box-shadow: 0 8px 20px rgba(14, 110, 184, 0.08);
}

.download-file-info {
  display: flex;
  align-items: center;
  gap: 18px;
}

.download-file-icon {
  width: 60px;
  height: 60px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: #16a34a;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.download-file-meta h4 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.download-file-meta p {
  font-size: 0.92rem;
  color: var(--color-muted);
}

.btn-download-large {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-size: 1.05rem;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(14, 110, 184, 0.3);
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-download-large:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(14, 110, 184, 0.4);
}

/* Article Body Content */
.data-article-body {
  font-size: 1.1rem;
  line-height: 1.9;
  color: var(--color-body);
  margin-bottom: 50px;
  word-break: keep-all;
}

.data-article-body p {
  margin-bottom: 22px;
}

.data-article-body strong {
  color: var(--color-navy);
  font-weight: 700;
}

.data-spec-table {
  margin: 32px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
}

.data-spec-table table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-spec-table th {
  background: #f1f5f9;
  padding: 16px 20px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-navy);
  border-bottom: 1px solid var(--color-border);
}

.data-spec-table td {
  padding: 16px 20px;
  font-size: 0.98rem;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-body);
}

.data-spec-table tr:last-child td {
  border-bottom: none;
}

.data-spec-table tr:hover td {
  background-color: #f8fafc;
}

/* Article Bottom Nav */
.data-article-bottom-nav {
  border-top: 1px solid var(--color-border);
  padding-top: 36px;
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.data-article-prev-next {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* HISTORY 연혁 (버핏연구소 연혁 원문: 연도 > 월 > 항목) */
.history-month-row {
  display: flex;
  gap: 16px;
  padding: 10px 0;
  border-top: 1px dashed var(--color-border);
}
.history-month-row:first-of-type { border-top: 0; }
.history-month {
  flex: 0 0 52px;
  font-weight: 700;
  color: var(--color-primary);
}
.history-lists {
  flex: 1;
  min-width: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  line-height: 1.7;
  color: var(--color-body);
}
.history-lists li + li { margin-top: 6px; }
.history-lists a { color: var(--color-primary); text-decoration: underline; }
.history-lists .history-edu-link { margin-left: 4px; }
.history-lists iframe { display: block; max-width: 100%; margin-top: 8px; border-radius: var(--radius-sm); }
.history-img img {
  display: block;
  max-width: min(100%, 480px);
  height: auto;
  margin-top: 4px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}
@media (max-width: 600px) {
  .history-month-row { flex-direction: column; gap: 4px; }
  .history-month { flex-basis: auto; }
}