/*!
 * Introduction Pages CSS
 * Information layouts, image galleries, content structures
 */

/* =====================================
   PAGE HEADER SECTION
   ===================================== */

.page-top-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: #2c5530;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  position: relative;
  border-bottom: 2px solid #2c5530;
  width: fit-content;
}

.page-top-title {font-size:clamp(2rem, 5vw, 3rem); font-weight: 700; margin-bottom: 1rem; letter-spacing: -1px;}
.page-top-subtitle {font-size:clamp(1.5rem, 3vw, 2rem); font-weight: 500; margin-bottom: 1.5rem; letter-spacing: -1px;}
.page-top-content {font-size:clamp(1.125rem, 2vw, 1.25rem); line-height: 1.8; font-weight: 400; letter-spacing: -1px; margin-bottom: 3rem;}

.page-top-image {
  width: 100%;
  height: 400px;
  margin: 3rem 0;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.page-top-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #ffffff;
  z-index: 2;
  transform-origin: left;
  animation: revealFromLeft 1.2s ease-out forwards;
}

@keyframes revealFromLeft {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(100%);
  }
}

.page-top-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.5s ease;
}

.page-top-image:hover img {
  transform: scale(1.05);
}

@media (max-width: 768px) {
  .page-top-image {
    height: 300px;
    margin: 2rem 0;
  }
}

@media (max-width: 480px) {
  .page-top-image {
    height: 200px;
    margin: 1.5rem 0;
    border-radius: 8px;
  }
}


.page-header {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-white);
  padding: var(--spacing-20) 0 var(--spacing-12);
  text-align: center;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
  background-size: 30px 30px;
  opacity: 0.3;
}

.page-header-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.page-title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-4);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.page-subtitle {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-light);
  line-height: var(--line-height-relaxed);
  opacity: 0.9;
}

/* =====================================
   BREADCRUMB NAVIGATION
   ===================================== */

.breadcrumb {
  background: var(--color-gray-100);
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--spacing-3) 0;
}

.breadcrumb-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

.breadcrumb-link {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-duration-base) var(--transition-timing);
}

.breadcrumb-link:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.breadcrumb-separator {
  color: var(--color-gray-400);
}

.breadcrumb-current {
  color: var(--color-gray-700);
  font-weight: var(--font-weight-medium);
}

/* =====================================
   MAIN CONTENT LAYOUT
   ===================================== */

.intro-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-8);
  padding: var(--spacing-12) 0;
}

@media (min-width: 1024px) {
  .intro-layout {
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-12);
  }
}

.main-content {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-8);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
}

.content-section {
  margin-bottom: var(--spacing-12);
}

.content-section:last-child {
  margin-bottom: 0;
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-6);
  line-height: var(--line-height-tight);
  position: relative;
  padding-bottom: var(--spacing-3);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.section-subtitle {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-4);
  line-height: var(--line-height-snug);
}

.content-text {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-4);
}

.content-text:last-child {
  margin-bottom: 0;
}

.content-text strong {
  color: var(--color-gray-900);
  font-weight: var(--font-weight-semibold);
}

.content-text a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-duration-base) var(--transition-timing);
}

.content-text a:hover {
  color: var(--color-secondary);
}

/* =====================================
   SIDEBAR
   ===================================== */

.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.sidebar-section {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
  overflow: hidden;
}

.sidebar-header {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-4) var(--spacing-5);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.sidebar-content {
  padding: var(--spacing-4) 0;
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav-item {
  border-bottom: 1px solid var(--color-gray-200);
}

.sidebar-nav-item:last-child {
  border-bottom: none;
}

.sidebar-nav-link {
  display: block;
  padding: var(--spacing-3) var(--spacing-5);
  color: var(--color-gray-700);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-duration-base) var(--transition-timing);
  position: relative;
}

.sidebar-nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary);
  transform: scaleY(0);
  transition: transform var(--transition-duration-base) var(--transition-timing);
}

.sidebar-nav-link:hover,
.sidebar-nav-link.active {
  background: var(--color-gray-50);
  color: var(--color-primary);
  padding-left: var(--spacing-6);
}

.sidebar-nav-link:hover::before,
.sidebar-nav-link.active::before {
  transform: scaleY(1);
}

/* Quick Info Widget */
.quick-info {
  padding: var(--spacing-5);
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
}

.quick-info-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-3);
}

.quick-info-item:last-child {
  margin-bottom: 0;
}

.quick-info-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.quick-info-content {
  flex: 1;
}

.quick-info-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-1);
}

.quick-info-value {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

/* =====================================
   INFORMATION CARDS
   ===================================== */

.info-cards {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--spacing-6);
  margin: var(--spacing-8) 0;
}

@media (min-width: 768px) {
  .info-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

.info-card {
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  border-left: 4px solid var(--color-primary);
  transition: all var(--transition-duration-base) var(--transition-timing);
}

.info-card:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.info-card-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-3);
}

.info-card-icon {
  font-size: var(--font-size-xl);
}

.info-card-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin: 0;
}

.info-card-content {
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
}

/* =====================================
   DATA TABLES
   ===================================== */

.data-table-container {
  margin: var(--spacing-8) 0;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
}

.data-table thead {
  background: var(--color-primary);
  color: var(--color-white);
}

.data-table th {
  padding: var(--spacing-4) var(--spacing-5);
  text-align: left;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

.data-table td {
  padding: var(--spacing-4) var(--spacing-5);
  border-bottom: 1px solid var(--color-gray-200);
  color: var(--color-gray-700);
  vertical-align: top;
}

.data-table tbody tr:hover {
  background: var(--color-gray-50);
}

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

.data-table .number-cell {
  text-align: right;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
}

.data-table .highlight-cell {
  background: var(--color-accent);
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
}

/* =====================================
   IMAGE GALLERIES
   ===================================== */

.image-gallery {
  margin: var(--spacing-8) 0;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-4);
}

.gallery-item {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-gray-200);
  cursor: pointer;
  transition: all var(--transition-duration-base) var(--transition-timing);
  group: item;
}

.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

.gallery-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-duration-slow) var(--transition-timing);
}

.gallery-item:hover .gallery-image {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(transparent 50%, rgba(0, 0, 0, 0.8));
  display: flex;
  align-items: end;
  padding: var(--spacing-4);
  color: var(--color-white);
  opacity: 0;
  transition: opacity var(--transition-duration-base) var(--transition-timing);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.gallery-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  font-size: var(--font-size-sm);
  text-align: center;
  padding: var(--spacing-4);
}

/* =====================================
   TIMELINE COMPONENT
   ===================================== */

.timeline {
  margin: var(--spacing-8) 0;
}

.timeline-item {
  position: relative;
  padding-left: var(--spacing-12);
  margin-bottom: var(--spacing-8);
}

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

.timeline-item::before {
  content: '';
  position: absolute;
  left: var(--spacing-4);
  top: 0;
  bottom: -var(--spacing-8);
  width: 2px;
  background: var(--color-gray-300);
}

.timeline-item:last-child::before {
  bottom: 50%;
}

.timeline-marker {
  position: absolute;
  left: 0;
  top: var(--spacing-1);
  width: var(--spacing-8);
  height: var(--spacing-8);
  background: var(--color-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  z-index: 1;
}

.timeline-content {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
}

.timeline-year {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.timeline-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-2);
  line-height: var(--line-height-tight);
}

.timeline-description {
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
}

/* =====================================
   STATISTICS CARDS
   ===================================== */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-6);
  margin: var(--spacing-8) 0;
}

.stat-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-duration-base) var(--transition-timing);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stat-number {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-black);
  line-height: var(--line-height-none);
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.stat-label {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
}

.stat-description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-top: var(--spacing-1);
}

/* =====================================
   ACCORDION COMPONENT
   ===================================== */

.accordion {
  margin: var(--spacing-8) 0;
}

.accordion-item {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-2);
  overflow: hidden;
  background: var(--color-white);
}

.accordion-item:last-child {
  margin-bottom: 0;
}

.accordion-header {
  background: var(--color-gray-50);
  border: none;
  width: 100%;
  text-align: left;
  padding: var(--spacing-4) var(--spacing-5);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-900);
  transition: all var(--transition-duration-base) var(--transition-timing);
}

.accordion-header:hover {
  background: var(--color-gray-100);
}

.accordion-header.active {
  background: var(--color-primary);
  color: var(--color-white);
}

.accordion-icon {
  transition: transform var(--transition-duration-base) var(--transition-timing);
}

.accordion-header.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-duration-base) var(--transition-timing);
}

.accordion-content.active {
  max-height: 500px;
}

.accordion-body {
  padding: var(--spacing-5);
  color: var(--color-gray-700);
  line-height: var(--line-height-relaxed);
  border-top: 1px solid var(--color-gray-200);
}

/* =====================================
   RESPONSIVE DESIGN
   ===================================== */

@media (max-width: 1024px) {
  .intro-layout {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    order: -1;
  }
  
  .sidebar-section {
    margin-bottom: var(--spacing-4);
  }
}

@media (max-width: 768px) {
  .page-title {
    font-size: var(--font-size-3xl);
  }
  
  .page-subtitle {
    font-size: var(--font-size-lg);
  }
  
  .main-content {
    padding: var(--spacing-6);
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .info-cards {
    grid-template-columns: 1fr;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .timeline-item {
    padding-left: var(--spacing-10);
  }
  
  .timeline-marker {
    width: var(--spacing-6);
    height: var(--spacing-6);
  }
}

@media (max-width: 480px) {
  .page-header {
    padding: var(--spacing-16) 0 var(--spacing-8);
  }
  
  .page-title {
    font-size: var(--font-size-2xl);
  }
  
  .page-subtitle {
    font-size: var(--font-size-base);
  }
  
  .main-content {
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
  }
  
  .info-card {
    padding: var(--spacing-4);
  }
  
  .data-table th,
  .data-table td {
    padding: var(--spacing-3);
    font-size: var(--font-size-sm);
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .stat-number {
    font-size: var(--font-size-3xl);
  }
}

/* 전체 너비 시설 이미지 */
.facility-photos-fullwidth {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  margin-top: 3rem;
  margin-bottom: 3rem;
  overflow: visible;
}

.facility-photos-fullwidth .facility-photos {
  position: relative;
  width: 100%;
}

.facility-photos-fullwidth .facility-photos-base {
  width: 100%;
  height: 500px;
  position: relative;
  overflow: hidden;
}

.facility-photos-fullwidth .facility-photos-base::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #ffffff;
  z-index: 2;
  transform-origin: left;
  animation: revealFromLeft 1.2s ease-out forwards;
}

.facility-photos-fullwidth .facility-photos-base img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.facility-photos-fullwidth .image-facilities-pointer {
  position: absolute;
  width: 32px;
  height: 32px;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 768px) {
  .facility-photos-fullwidth .facility-photos-base {
    height: 350px;
  }
}

@media (max-width: 480px) {
  .facility-photos-fullwidth .facility-photos-base {
    height: 250px;
  }
}

/* 가이드 섹션 2단 레이아웃 */
.guide-section-grid {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid #e0e0e0;
}

.guide-section-grid:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.guide-section-title {
  position: sticky;
  top: 100px;
  align-self: start;
}

.guide-section-title .content-subtitle {
  font-size: 1.5rem;
  font-weight: 700;
  color: #2c5530;
  margin: 0;
  line-height: 1.4;
}

.guide-section-content {
  flex: 1;
}

@media (max-width: 1024px) {
  .guide-section-grid {
    grid-template-columns: 200px 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .guide-section-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
  }
  
  .guide-section-title {
    position: static;
  }
  
  .guide-section-title .content-subtitle {
    font-size: 1.25rem;
    margin-bottom: 1rem;
  }
}

/* 페이드업 공통 */
                  .fade-up{opacity:0;transform:translateY(24px);transition:opacity .6s ease, transform .6s ease}
                  .fade-up.in{opacity:1;transform:translateY(0)}

                  /* 모달 오버레이/콘텐츠 애니메이션 */
                  .facility-photos.modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,.5);opacity:0;transition:opacity .35s ease}
                  .facility-photos.modal.is-open{display:flex;opacity:1}
                  .facility-photos.modal.is-open.closing{opacity:0}
                  .facility-photos.modal .modal-content{background:#fff;border-radius:12px;padding:16px;max-width:min(90vw,680px);max-height:90vh;overflow:auto;box-shadow:0 10px 30px rgba(0,0,0,.15);opacity:0;transform:translateY(28px);transition:transform .4s ease, opacity .4s ease}
                  .facility-photos.modal.is-open .modal-content{opacity:1;transform:translateY(0)}
                  .facility-photos.modal.is-open.closing .modal-content{opacity:0;transform:translateY(28px)}
                  /* 포인터 원형 + 펄스 애니메이션 */
                  .image-facilities-pointer .point-dot{display:block;width:10px;height:10px;border-radius:9999px;background:#fff;box-shadow:0 0 0 3px rgba(255, 255, 255, 0.25),0 6px 16px rgba(0,0,0,.15);animation:pointPulse 1.6s ease-in-out infinite;pointer-events:none}
                  @keyframes pointPulse{
                    0%{transform:scale(1);opacity:1}
                    70%{transform:scale(1.6667);opacity:0}
                    100%{transform:scale(1);opacity:1}
                  }
                  /* 모달 이미지 공통 (반응형) */
                  .modal-content img.modal-img{width:100%;height:auto;border-radius:12px;display:block}
                  /* 베이스 이미지 반응형 */
                  .facility-photos-base img{width:100%;height:auto;display:block}
                  /* 반응형 조정 */
                  @media (max-width:640px){
                    .facility-photos.modal .modal-content{max-width:92vw;padding:12px}
                    .modal-content h3{font-size:18px;margin-top:0}
                  }
                  @media (min-width:1024px){
                    .facility-photos.modal .modal-content{max-width:min(80vw,800px)}
                  }