/* ============================================================
   sub.css — sub 페이지 공통 전용 스타일
   sub.html / sub2.html 모두에서 사용
   ============================================================ */

/* ── Page Hero ──────────────────────────────────────────────── */
.page-hero {
  position: relative;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--primary-container);
  color: white;
  margin-top: 72px; /* fixed-top navbar 높이 보정 */
}

/* .hero-bg-img 기본 스타일은 style.css (공통) — 여기선 불투명도만 조정 */
.page-hero .hero-bg-img {
  opacity: 0.4;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 31, 63, 0.6), rgba(0, 6, 19, 0.8));
  backdrop-filter: blur(2px);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.breadcrumb-custom {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb-custom .active-item {
  color: var(--accent-gold);
}

/* ── Sidebar ────────────────────────────────────────────────── */
.sidebar-heading {
  border-left: 4px solid var(--secondary-gold);
  padding-left: 1rem;
  margin-bottom: 1.5rem;
}

.sidebar-heading h2 {
  font-size: 1.125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0;
  color: var(--primary-navy);
}

.sidebar-heading small {
  font-size: 0.8rem;
}

/* Sidebar List Group */
.sidebar-nav .list-group-item {
  border: none;
  background: transparent;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 0.5rem !important;
  margin-bottom: 0.25rem;
  transition: all var(--transition-base);
}

.sidebar-nav .list-group-item:hover {
  background-color: var(--surface-container);
  color: var(--primary-navy);
}

.sidebar-nav .list-group-item.active {
  background-color: var(--surface-container-low) !important;
  color: var(--secondary-gold) !important;
  font-weight: 700;
}

.sidebar-nav .list-group-item i {
  font-size: 0.75rem;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.sidebar-nav .list-group-item:hover i,
.sidebar-nav .list-group-item.active i {
  opacity: 1;
}

/* CTA Card (sub.html 소개 페이지용) */
.cta-card {
  background-color: var(--primary-navy);
  color: white;
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 10px 15px -3px rgba(0, 6, 19, 0.15);
}

.cta-card .cta-label {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--accent-gold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

/* .btn-gold / .btn-gold:hover 는 style.css (공통) */

/* Info Box (sub2.html 소식 페이지 사이드바용) */
.info-box {
  background-color: var(--surface-container);
  border-left: 4px solid var(--secondary-gold);
  padding: 1.5rem;
  border-radius: 0 12px 12px 0;
  margin-top: 2rem;
}

.info-box h6 {
  font-weight: 700;
  color: var(--primary-navy);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.info-box p {
  font-size: 0.8rem;
  color: #6c757d;
  margin: 0;
  line-height: 1.5;
}

/* ── Section Divider Label ──────────────────────────────────── */
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--secondary-gold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
  margin-right: 1rem;
}

.section-divider {
  flex-grow: 1;
  height: 1px;
  background-color: rgba(116, 119, 127, 0.2);
}

/* ── Vision Cards (sub.html 소개 페이지용) ──────────────────── */
.vision-card {
  padding: 2rem;
  border-radius: 0.75rem;
  height: 100%;
  transition: transform var(--transition-base);
}

.vision-card-gold {
  background-color: var(--surface-container-low);
  border-left: 4px solid var(--secondary-gold);
}

.vision-card-gray {
  background-color: var(--surface-container);
}

/* ── Quote Section ──────────────────────────────────────────── */
.quote-section {
  background-color: var(--primary-navy);
  color: white;
  border-radius: 1rem;
  padding: 3rem;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.quote-icon {
  position: absolute;
  top: 1rem;
  left: 2rem;
  font-size: 6rem;
  color: rgba(255, 255, 255, 0.1);
  font-family: serif;
  line-height: 1;
}

/* ── Timeline ───────────────────────────────────────────────── */
.timeline-item {
  position: relative;
  padding-left: 2rem;
  border-left: 1px solid rgba(116, 119, 127, 0.3);
  padding-bottom: 2rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -6px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

/* ── Notice Board (sub2.html 소식 페이지용) ─────────────────── */
.content-title-area {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
}

.content-title-area h3 {
  font-weight: 700;
  font-size: 1.25rem;
  margin: 0;
  color: var(--primary-navy);
}

.search-container {
  position: relative;
  max-width: 280px;
}

.search-container input {
  padding-right: 2.5rem;
  background-color: var(--surface-container-low);
  border: none;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
}

.search-container input:focus {
  box-shadow: none;
  background-color: var(--surface-container);
}

.search-container i {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: #adb5bd;
  pointer-events: none;
}

.notice-header {
  background-color: var(--surface-container-low);
  padding: 0.75rem 1.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: #6c757d;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 4px;
}

.notice-item {
  padding: 1.25rem 1.5rem;
  background-color: white;
  border-bottom: 1px solid #f0f1f2;
  transition: background-color var(--transition-base);
  cursor: pointer;
}

.notice-item:hover {
  background-color: var(--surface-container-low);
}

.notice-item.sticky {
  background-color: rgba(255, 222, 165, 0.1);
}

.notice-item.sticky:hover {
  background-color: rgba(255, 222, 165, 0.2);
}

.notice-badge {
  background-color: var(--secondary-gold);
  color: white;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
}

.notice-title {
  font-weight: 600;
  color: #2e3132;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.notice-item.sticky .notice-title {
  font-weight: 700;
}

.notice-info {
  color: #6c757d;
  font-size: 0.85rem;
}

/* ── Pagination ─────────────────────────────────────────────── */
.pagination .page-link {
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 4px;
  border-radius: var(--radius-md) !important;
  font-weight: 500;
  transition: background-color var(--transition-base);
}

.pagination .page-item.active .page-link {
  background-color: var(--primary-navy);
  border-color: var(--primary-navy);
  color: white;
}

.pagination .page-link:hover {
  background-color: var(--surface-container);
  color: var(--primary-navy);
}