/* ============================================
   ARCA HORTUS - ARCHIVE SYSTEM (v2.3 FINAL)
   Fixed Layout + Simplified Responsive Design
   ============================================ */

:root {
  --primary-color: #77ddff;
  --secondary-color: #88bbff;
  --accent-color: #ff6b9d;
  --bg-dark: #0e0e10;
  --bg-panel: #1a1a22;
  --border-color: #2a2a3a;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0b0;
  --classified-red: #cc3333;
  --restricted-yellow: #ffaa33;
  --public-blue: #3399ff;
}

/* ============================================
   LAYOUT STRUCTURE
   ============================================ */

.archive-main {
  display: flex;
  /* style.cssのmain共通ルール(column・中央寄せ)を明示的に打ち消す */
  flex-direction: row;
  align-items: stretch;
  justify-content: flex-start;
  text-align: left;
  padding: 0;
  background: var(--bg-dark);
  overflow: hidden;
  min-height: calc(100vh - 120px);
  width: 100%;
}

/* LEFT SIDEBAR - Fixed */
.archive-sidebar {
  width: 280px;
  background: linear-gradient(180deg, rgba(26, 26, 34, 0.95) 0%, rgba(20, 20, 28, 0.95) 100%);
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
  padding: 20px;
  box-shadow: inset -2px 0 10px rgba(0, 0, 0, 0.3);
  flex-shrink: 0;
}

.archive-sidebar::-webkit-scrollbar {
  width: 6px;
}

.archive-sidebar::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 3px;
  opacity: 0.3;
}

.sidebar-header {
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-header h3 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary-color);
  margin: 0 0 8px 0;
  text-transform: uppercase;
}

.system-label {
  font-size: 11px;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 1px;
}

/* SIDEBAR SEARCH */
.sidebar-search {
  position: relative;
  margin-bottom: 25px;
}

.search-field {
  width: 100%;
  padding: 10px 12px;
  background: rgba(119, 221, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  transition: all 0.3s ease;
}

.search-field:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(119, 221, 255, 0.1);
  box-shadow: 0 0 12px rgba(119, 221, 255, 0.2);
}

.search-icon {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 14px;
  pointer-events: none;
}

/* CATEGORY TREE */
.category-tree {
  margin-bottom: 25px;
}

.tree-header {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.tree-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tree-item {
  display: flex;
  align-items: center;
  padding: 8px 10px;
  margin-bottom: 4px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 13px;
  color: var(--text-secondary);
}

.tree-item:hover {
  background: rgba(119, 221, 255, 0.05);
  color: var(--primary-color);
}

.tree-item.active {
  background: rgba(119, 221, 255, 0.15);
  color: var(--primary-color);
  border-left: 2px solid var(--primary-color);
  padding-left: 8px;
}

.tree-toggle {
  margin-right: 8px;
  width: 16px;
  text-align: center;
  font-size: 11px;
}

.tree-label {
  flex: 1;
}

.count {
  font-size: 11px;
  color: var(--text-secondary);
  opacity: 0.7;
}

/* FILTER SECTION */
.filter-section {
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border-color);
}

.filter-header {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.filter-group {
  margin-bottom: 15px;
}

.filter-label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 600;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.2s ease;
}

.checkbox-group label:hover {
  color: var(--primary-color);
}

.checkbox-group input[type="checkbox"] {
  width: 14px;
  height: 14px;
  margin-right: 8px;
  cursor: pointer;
  accent-color: var(--primary-color);
}

.sort-select {
  width: 100%;
  padding: 8px;
  background: rgba(119, 221, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  cursor: pointer;
  transition: all 0.2s ease;
}

.sort-select:hover {
  border-color: var(--primary-color);
  background: rgba(119, 221, 255, 0.1);
}

.sort-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 8px rgba(119, 221, 255, 0.2);
}

/* SIDEBAR STATS */
.sidebar-stats {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 15px;
  background: rgba(119, 221, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

.stat-item {
  display: flex;
  justify-content: space-between;
}

.stat-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.stat-value {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-color);
  font-family: 'JetBrains Mono', monospace;
}

/* ============================================
   MAIN CONTENT AREA
   ============================================ */

.archive-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 30px 40px;
}

.archive-container::-webkit-scrollbar {
  width: 8px;
}

.archive-container::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 4px;
  opacity: 0.3;
}

/* PAGE HEADER */
.page-header {
  margin-bottom: 35px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--border-color);
}

.section-tag {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(119, 221, 255, 0.1);
  border: 1px solid var(--primary-color);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.page-header h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px 0;
  letter-spacing: -0.5px;
}

.page-header .en {
  font-size: 14px;
  color: var(--secondary-color);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 1.5px;
  margin-bottom: 8px;
}

.doc-number {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 1px;
}

/* ARCHIVE GRID */
.archive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 25px;
  margin-bottom: 40px;
}

.no-results {
  grid-column: 1 / -1;
  padding: 40px 20px;
  text-align: center;
  font-size: 16px;
  color: var(--text-secondary);
  background: rgba(119, 221, 255, 0.05);
  border: 1px dashed var(--border-color);
  border-radius: 8px;
}

/* ARCHIVE CARD */
.archive-card {
  position: relative;
  background: linear-gradient(135deg, rgba(26, 26, 34, 0.7) 0%, rgba(20, 20, 28, 0.7) 100%);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.23, 1, 0.320, 1);
  overflow: hidden;
}

.archive-card:hover {
  border-color: var(--primary-color);
  background: linear-gradient(135deg, rgba(26, 26, 34, 0.9) 0%, rgba(20, 20, 28, 0.9) 100%);
  box-shadow: 0 0 20px rgba(119, 221, 255, 0.2),
              inset 0 1px 0 rgba(119, 221, 255, 0.1);
  transform: translateY(-4px);
}

.card-glow {
  position: absolute;
  top: -40px;
  right: -40px;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, rgba(119, 221, 255, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.archive-card:hover .card-glow {
  opacity: 1;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  gap: 10px;
  flex-wrap: wrap;
}

.security-badge {
  padding: 4px 10px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-family: 'JetBrains Mono', monospace;
}

.security-badge.classified {
  background: var(--classified-red);
  color: #ffffff;
  box-shadow: 0 0 8px rgba(204, 51, 51, 0.4);
}

.security-badge.restricted {
  background: var(--restricted-yellow);
  color: #000;
  box-shadow: 0 0 8px rgba(255, 170, 51, 0.4);
}

.security-badge.public {
  background: var(--public-blue);
  color: #ffffff;
  box-shadow: 0 0 8px rgba(51, 153, 255, 0.4);
}

.doc-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 1px;
}

.doc-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

.card-image-wrapper {
  position: relative;
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.3), rgba(119, 221, 255, 0.1));
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 15px;
  border: 1px solid var(--border-color);
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.8;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.archive-card:hover .card-image {
  opacity: 1;
  transform: scale(1.05);
}

.image-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.archive-card:hover .image-overlay {
  opacity: 1;
}

.overlay-text {
  color: var(--primary-color);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.archive-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 10px 0;
  line-height: 1.4;
  transition: color 0.2s ease;
}

.archive-card:hover .archive-title {
  color: var(--primary-color);
}

.archive-excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0 0 15px 0;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 15px;
  border-top: 1px solid var(--border-color);
}

.archive-tag {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(119, 221, 255, 0.1);
  border: 1px solid rgba(119, 221, 255, 0.3);
  border-radius: 3px;
  font-size: 11px;
  color: var(--secondary-color);
  font-weight: 600;
  transition: all 0.2s ease;
}

.archive-tag:hover {
  background: rgba(119, 221, 255, 0.2);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.read-more {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
}

.archive-card:hover .read-more {
  transform: translateX(2px);
  text-shadow: 0 0 8px rgba(119, 221, 255, 0.5);
}

/* PAGINATION */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 30px;
  padding: 20px 0;
  margin-top: 40px;
  border-top: 1px solid var(--border-color);
}

.page-btn {
  padding: 8px 16px;
  background: rgba(119, 221, 255, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--primary-color);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.page-btn:hover:not(:disabled) {
  background: rgba(119, 221, 255, 0.2);
  border-color: var(--primary-color);
  box-shadow: 0 0 12px rgba(119, 221, 255, 0.2);
}

.page-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.page-info {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.5px;
}

/* ============================================
   FULL SCREEN MODAL
   ============================================ */

.archive-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.23, 1, 0.320, 1);
}

.archive-modal.is-active {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  cursor: pointer;
}

.modal-container {
  position: relative;
  width: 95%;
  height: 90%;
  max-width: 1400px;
  background: linear-gradient(135deg, rgba(26, 26, 34, 0.95) 0%, rgba(20, 20, 28, 0.95) 100%);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  overflow: hidden;
  box-shadow: 0 0 50px rgba(119, 221, 255, 0.2),
              0 0 100px rgba(0, 0, 0, 0.5);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 10;
  width: 40px;
  height: 40px;
  background: rgba(119, 221, 255, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--primary-color);
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close-btn:hover {
  background: rgba(119, 221, 255, 0.2);
  border-color: var(--primary-color);
  box-shadow: 0 0 12px rgba(119, 221, 255, 0.3);
}

/* LEFT METADATA PANEL */
.modal-sidebar {
  width: 320px;
  background: linear-gradient(180deg, rgba(26, 26, 34, 0.7) 0%, rgba(20, 20, 28, 0.7) 100%);
  border-right: 1px solid var(--border-color);
  padding: 30px 20px;
  overflow-y: auto;
  box-shadow: inset -2px 0 10px rgba(0, 0, 0, 0.3);
}

.modal-sidebar::-webkit-scrollbar {
  width: 6px;
}

.modal-sidebar::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 3px;
  opacity: 0.3;
}

.modal-meta-header {
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border-color);
}

.modal-meta-header .doc-id {
  display: block;
  font-size: 14px;
  margin-bottom: 6px;
}

.modal-meta-header .doc-date {
  display: block;
  font-size: 12px;
}

.modal-security-badge {
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
}

.modal-security-badge.classified {
  background: var(--classified-red);
  color: #ffffff;
  box-shadow: 0 0 8px rgba(204, 51, 51, 0.4);
}

.modal-security-badge.restricted {
  background: var(--restricted-yellow);
  color: #000;
  box-shadow: 0 0 8px rgba(255, 170, 51, 0.4);
}

.modal-security-badge.public {
  background: var(--public-blue);
  color: #ffffff;
  box-shadow: 0 0 8px rgba(51, 153, 255, 0.4);
}

/* ============================================
   TOOL ACTIONS（実用器物の実物への導線）
   既存の ⎙ Print / ⇩ Export とは別物
   ============================================ */
.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--border-color);
}

.tool-btn {
  display: inline-block;
  padding: 12px 22px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: rgba(119, 221, 255, 0.08);
  color: var(--primary-color);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: background 0.25s, border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}

.tool-btn:hover {
  background: rgba(119, 221, 255, 0.18);
  border-color: var(--primary-color);
  box-shadow: 0 0 14px rgba(119, 221, 255, 0.25);
  transform: translateY(-2px);
}

.tool-btn.primary {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: #04121a;
  font-weight: 700;
}

.tool-btn.primary:hover {
  background: #ffffff;
  border-color: #ffffff;
  box-shadow: 0 0 18px rgba(119, 221, 255, 0.45);
}

@media (max-width: 480px) {
  .tool-actions { flex-direction: column; }
  .tool-btn { text-align: center; }
}

.modal-metadata {
  margin-bottom: 25px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.modal-metadata .meta-item {
  display: flex;
  flex-direction: column;
  margin-bottom: 12px;
}

.meta-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.meta-value {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  word-break: break-all;
}

/* GALLERY & TAGS & RELATED */
.gallery-nav,
.modal-tags,
.related-docs {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.gallery-label,
.related-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.gallery-thumb {
  aspect-ratio: 1;
  background: rgba(119, 221, 255, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.2s ease;
}

.gallery-thumb:hover {
  border-color: var(--primary-color);
  box-shadow: 0 0 8px rgba(119, 221, 255, 0.2);
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.related-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.related-list li {
  margin-bottom: 8px;
}

.related-list a {
  display: inline-block;
  padding: 6px 10px;
  background: rgba(119, 221, 255, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 3px;
  color: var(--secondary-color);
  font-size: 12px;
  text-decoration: none;
  transition: all 0.2s ease;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
}

.related-list a:hover {
  background: rgba(119, 221, 255, 0.2);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* MODAL ACTIONS */
.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.action-btn {
  padding: 10px 12px;
  background: rgba(119, 221, 255, 0.1);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--primary-color);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.action-btn:hover {
  background: rgba(119, 221, 255, 0.2);
  border-color: var(--primary-color);
  box-shadow: 0 0 8px rgba(119, 221, 255, 0.2);
}

/* RIGHT CONTENT PANEL */
.modal-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, rgba(20, 20, 28, 0.5) 0%, rgba(14, 14, 16, 0.5) 100%);
  padding: 30px;
  overflow: hidden;
}

.modal-header-main {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--border-color);
  flex-shrink: 0;
}

.modal-header-main h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.4;
}

/* MODAL BODY CONTENT - IMPORTANT: Must scroll */
.modal-body-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 10px;
}

.modal-body-content::-webkit-scrollbar {
  width: 8px;
}

.modal-body-content::-webkit-scrollbar-track {
  background: transparent;
}

.modal-body-content::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 4px;
  opacity: 0.3;
}

.content-section {
  margin-bottom: 30px;
}

.content-section h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-color);
  margin: 0 0 12px 0;
  letter-spacing: 0.5px;
}

.content-section p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0 0 12px 0;
}

.content-section p.signature {
  text-align: right;
  font-style: italic;
  color: var(--text-secondary);
  margin-top: 20px;
}

.findings-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.findings-list li {
  padding: 8px 12px;
  margin-bottom: 8px;
  background: rgba(119, 221, 255, 0.05);
  border-left: 2px solid var(--primary-color);
  border-radius: 2px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.metadata-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
  margin-bottom: 25px;
  padding: 20px;
  background: rgba(119, 221, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

.metadata-grid .meta-item {
  display: flex;
  flex-direction: column;
}

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

/* Tablet & smaller PC */
@media (max-width: 1199px) {
  .archive-sidebar {
    width: 240px;
    padding: 16px;
  }

  .archive-container {
    padding: 25px 30px;
  }

  .page-header h1 {
    font-size: 28px;
  }

  .archive-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
  }
}

/* Tablet (900-1199px) */
@media (max-width: 1024px) {
  .archive-main {
    flex-direction: row;
  }

  .archive-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .modal-sidebar {
    width: 260px;
  }

  .modal-main {
    padding: 20px;
  }
}

/* Mobile (768px - 899px) */
@media (max-width: 900px) {
  .archive-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    max-height: 180px;
    overflow: auto;
    margin-bottom: 20px;
  }

  .archive-main {
    flex-direction: column;
    min-height: auto;
  }

  .archive-container {
    padding: 20px;
  }

  .page-header h1 {
    font-size: 24px;
  }

  .archive-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .card-image-wrapper {
    height: 150px;
  }

  .modal-container {
    flex-direction: column;
  }

  .modal-sidebar {
    width: 100%;
    height: 180px;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .modal-main {
    padding: 20px;
  }

  .pagination {
    flex-direction: column;
    gap: 15px;
  }
}

/* Small mobile (767px and below) */
@media (max-width: 768px) {
  .archive-sidebar {
    max-height: 160px;
    padding: 12px;
  }

  .sidebar-header h3 {
    font-size: 12px;
  }

  .archive-container {
    padding: 15px;
  }

  .page-header {
    margin-bottom: 20px;
  }

  .page-header h1 {
    font-size: 20px;
  }

  .card-image-wrapper {
    height: 120px;
  }

  .modal-header-main h2 {
    font-size: 22px;
  }

  .metadata-grid {
    grid-template-columns: 1fr;
  }
}

/* Extra small (480px and below) */
@media (max-width: 480px) {
  .archive-container {
    padding: 12px;
  }

  .page-header h1 {
    font-size: 18px;
  }

  .archive-grid {
    gap: 12px;
  }

  .archive-card {
    padding: 15px;
  }

  .card-image-wrapper {
    height: 100px;
  }

  .card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .modal-main {
    padding: 15px;
  }

  .modal-header-main {
    margin-bottom: 15px;
    padding-bottom: 15px;
  }

  .content-section h3 {
    font-size: 16px;
  }
}