:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --border-color: #e2e8f0;
  --border-dark: #cbd5e1;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: #eff6ff;
  --accent-border: #bfdbfe;
  --success: #16a34a;
  --success-bg: #f0fdf4;
  --warning: #d97706;
  --sidebar-width: 252px;
  --header-height: 60px;
  --radius: 8px;
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --svg-beam: #1e293b;
  --svg-wall: #475569;
  --svg-shape-fill: #e2e8f0;
  --svg-shape-hole: #ffffff;
  --svg-shape-stroke: #2563eb;
  --svg-inner-stroke: #94a3b8;
  --svg-load: #ef4444;
  --svg-axis-y: #10b981;
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --border-color: #334155;
  --border-dark: #475569;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-light: #1e3a8a33;
  --accent-border: #1e40af;
  --success: #22c55e;
  --success-bg: #064e3b33;
  --warning: #f59e0b;
  --svg-beam: #f1f5f9;
  --svg-wall: #cbd5e1;
  --svg-shape-fill: #475569;
  --svg-shape-hole: #0f172a;
  --svg-shape-stroke: #60a5fa;
  --svg-inner-stroke: #cbd5e1;
  --svg-load: #f87171;
  --svg-axis-y: #34d399;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "BIZ UDPGothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  font-size: 14px;
  overflow: hidden;
  height: 100vh;
  user-select: text;
}

/* App Layout */
.app-container {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.sidebar-header {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  font-size: 22px;
  background: var(--accent-light);
  color: var(--accent);
  padding: 6px;
  border-radius: var(--radius);
  line-height: 1;
}

.brand-text h1 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.brand-text p {
  font-size: 11px;
  color: var(--text-muted);
}

.btn-sidebar-settings {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.18s ease;
}

.btn-sidebar-settings:hover {
  border-color: var(--accent);
  background-color: var(--accent-light);
  color: var(--accent);
  transform: rotate(22deg);
}

/* TOC Controls Bar */
.toc-controls-bar {
  padding: 8px 12px;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.toc-controls-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  white-space: nowrap;
}

.btn-collapse-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 4px;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-collapse-toggle:hover {
  background-color: var(--bg-primary);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-collapse-hint {
  font-size: 10px;
  color: var(--accent);
  margin-left: 2px;
}

.toc-container {
  flex: 1;
  overflow-y: auto;
  padding: 12px 8px;
}

.toc-chapter {
  margin-bottom: 8px;
}

.toc-chapter-header {
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 6px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.toc-chapter-header:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.toc-chapter-title-group {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.toc-chapter-caret {
  font-size: 10px;
  color: var(--text-muted);
  display: inline-block;
  transition: transform 0.2s ease;
  width: 14px;
  text-align: center;
}

.toc-chapter.open .toc-chapter-caret {
  transform: rotate(90deg);
}

.toc-section-list {
  list-style: none;
  padding-left: 6px;
}

.toc-chapter.collapsed:not(.has-fav-chapter) .toc-section-list,
.toc-chapter.collapsed.force-collapsed .toc-section-list {
  display: none;
}

.toc-chapter.collapsed .toc-item:not(.has-fav) {
  display: none;
}

.toc-item {
  padding: 7px 10px;
  margin: 2px 0;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 6px;
  transition: all 0.15s ease;
}

.toc-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.toc-item.active {
  background-color: var(--accent-light);
  color: var(--accent);
  font-weight: 600;
}

.toc-item-id {
  flex-shrink: 0;
  white-space: nowrap;
  font-weight: 600;
  font-size: 12px;
  color: var(--text-muted);
  min-width: 28px;
}

.toc-item.active .toc-item-id {
  color: var(--accent);
}

.toc-item-title {
  flex: 1;
  line-height: 1.35;
}

.toc-item-meta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  flex-shrink: 0;
  padding-top: 1px;
}

.toc-item-fav-badge {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 0 6px;
  font-size: 10.5px;
  font-weight: 700;
  line-height: 1.45;
  border-radius: 999px;
  background-color: #e2e8f0;
  border: 1px solid #94a3b8;
  color: #0f172a;
  white-space: nowrap;
}

[data-theme="dark"] .toc-item-fav-badge {
  background-color: #334155;
  border-color: #64748b;
  color: var(--text-primary);
}

.toc-item-page {
  flex-shrink: 0;
  white-space: nowrap;
  font-size: 11px;
  color: var(--text-muted);
}

.badge {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-ready {
  background-color: #dcfce7;
  color: #15803d;
}

.badge-preview {
  background-color: #fef3c7;
  color: #b45309;
}

.badge-pending {
  background-color: var(--bg-tertiary);
  color: var(--text-muted);
}

.sidebar-footer {
  padding: 10px 12px;
  border-top: 1px solid var(--border-color);
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.sidebar-footer .btn {
  white-space: nowrap;
  flex-shrink: 0;
}

/* Main Content Area */
.main-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background-color: var(--bg-primary);
}

/* Top Navigation Bar */
.topbar {
  min-height: var(--header-height);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}

.breadcrumb-current {
  color: var(--text-primary);
  font-weight: 600;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Content Container */
.content-body {
  flex: 1;
  overflow-y: auto;
  padding: 14px 16px;
}

/* Card */
.content-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 24px;
  overflow: hidden;
}

.card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
}

.card-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
}

.card-header h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.card-header p {
  color: var(--text-secondary);
  font-size: 13px;
}

/* Controls Bar */
.controls-bar {
  padding: 14px 24px;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 240px;
  max-width: 400px;
}

.search-input {
  width: 100%;
  padding: 8px 12px 8px 34px;
  border: 1px solid var(--border-dark);
  border-radius: 6px;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition: all 0.15s ease;
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.btn:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--text-muted);
}

.btn-primary {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

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

/* Tabs */
.tabs-nav {
  display: flex;
  padding: 0 24px;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.tab-group-container {
  width: 100%;
  padding: 12px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tab-switch-main {
  display: flex;
  gap: 8px;
}

.main-tab-btn {
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.main-tab-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.main-tab-btn.active {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.tab-switch-sub {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.sub-tab-btn {
  padding: 5px 11px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.35;
  text-align: left;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.sub-tab-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.sub-tab-btn.active {
  background-color: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.sub-tab-btn.has-match {
  border-color: #f59e0b;
  background-color: rgba(245, 158, 11, 0.1);
  color: #b45309;
}

[data-theme="dark"] .sub-tab-btn.has-match {
  color: #fbbf24;
  background-color: rgba(245, 158, 11, 0.16);
}

.tab-count-badge {
  font-size: 10.5px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 10px;
  background-color: var(--bg-tertiary);
  color: var(--text-muted);
}

.sub-tab-btn.active .tab-count-badge {
  background-color: var(--accent);
  color: #ffffff;
}

.shape-icon {
  width: 34px;
  height: 34px;
  display: inline-block;
  vertical-align: middle;
}

.tab-btn {
  padding: 12px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border: none;
  background: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

/* Table Area (Excel-style Freeze Panes: Top Header + Left Action/ID Columns) */
.table-container {
  overflow: auto;
  position: relative;
  max-height: clamp(400px, calc(100vh - 280px), 780px);
}

.data-table {
  width: max-content;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 12px;
  border-right: 1px solid var(--border-color);
}

.data-table:has(td[colspan]) {
  width: 100%;
  border-right: none;
}

.data-table th {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 11px;
  line-height: 1.25;
  text-align: left;
  padding: 5px 6px;
  border-bottom: 1px solid var(--border-dark);
  border-right: 1px solid var(--border-color);
  white-space: normal;
  word-break: keep-all;
  vertical-align: middle;
  position: sticky;
  top: 0;
  z-index: 10;
}

.data-table th .th-unit {
  display: inline-block;
  font-size: 10px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}

.data-table.single-line-headers th {
  white-space: nowrap;
}

.data-table.single-line-headers th .th-opt-br {
  display: none;
}

.data-table th:last-child {
  border-right: none;
}

.data-table td {
  padding: 4px 6px;
  border-bottom: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  white-space: nowrap;
  position: relative;
}

.data-table td.col-wrap {
  white-space: normal;
  min-width: 140px;
  max-width: 240px;
  line-height: 1.35;
}

.data-table td:last-child {
  border-right: none;
}

.data-table tbody tr:hover td {
  background-color: var(--bg-tertiary);
}

/* Sticky Left Columns (操作 + 呼び名/寸法) */
.data-table th.sticky-col,
.data-table td.sticky-col {
  position: sticky;
}

.data-table th.sticky-col {
  z-index: 30;
  background-color: var(--bg-tertiary);
}

.data-table td.sticky-col {
  z-index: 5;
  background-color: var(--bg-secondary);
}

.data-table tbody tr:hover td.sticky-col {
  background-color: var(--bg-tertiary);
}

.data-table th.sticky-col-last,
.data-table td.sticky-col-last {
  border-right: 2px solid var(--border-dark);
}

.table-container.is-scrolled-x .data-table th.sticky-col-last,
.table-container.is-scrolled-x .data-table td.sticky-col-last {
  box-shadow: 4px 0 10px -2px rgba(15, 23, 42, 0.14);
}

[data-theme="dark"] .table-container.is-scrolled-x .data-table th.sticky-col-last,
[data-theme="dark"] .table-container.is-scrolled-x .data-table td.sticky-col-last {
  box-shadow: 4px 0 12px -2px rgba(0, 0, 0, 0.5);
}

/* Monospace numbers */
.num-col {
  font-family: "Consolas", "Roboto Mono", "Courier New", monospace;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

/* Copyable cell */
.data-table td.copyable {
  cursor: pointer;
}

.data-table td.copyable:hover {
  background-color: var(--accent-light) !important;
  color: var(--accent);
}

[data-theme="dark"] .data-table td.sticky-col.copyable:hover {
  background-color: #1e2f52 !important;
}

/* Row action */
.row-actions {
  width: auto;
  min-width: 48px;
  text-align: center;
  padding: 3px 5px !important;
}

.row-action-btns {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.btn-row-fav {
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 5px;
  font-size: 13px;
  line-height: 1;
  color: var(--text-muted);
  transition: all 0.15s ease;
  user-select: none;
}

.btn-row-fav:hover {
  background-color: #e2e8f0;
  border-color: #94a3b8;
  color: #0f172a;
  transform: scale(1.12);
}

.btn-row-fav.active {
  background-color: #f1f5f9;
  border-color: #475569;
  color: #0f172a;
  font-weight: 700;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.16);
}

[data-theme="dark"] .btn-row-fav.active {
  background-color: #f8fafc;
  border-color: #64748b;
  color: #0f172a;
}

.btn-row-calc {
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 3px 4px;
  border-radius: 4px;
  font-size: 13px;
  line-height: 1;
  color: var(--accent);
  transition: all 0.15s ease;
  user-select: none;
}

.btn-row-calc:hover {
  background-color: var(--accent-light);
  border-color: var(--accent-border);
  transform: scale(1.12);
}

.btn-row-copy {
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 3px 5px;
  border-radius: 4px;
  font-size: 11px;
  line-height: 1;
  color: var(--text-muted);
  transition: all 0.15s ease;
}

.btn-row-copy:hover {
  background-color: var(--bg-secondary);
  border-color: var(--border-dark);
  color: var(--accent);
}

/* Row Favorite Highlight (お気に入り部材のハイライト表示) */
.data-table tr.row-favorite-highlight td {
  background-color: #e5e7eb !important;
  color: #0f172a;
  border-bottom-color: #cbd5e1;
}

.data-table tr.row-favorite-highlight td.sticky-col {
  background-color: #e5e7eb !important;
}

.data-table tr.row-favorite-highlight td.sticky-col.copyable {
  font-weight: 700;
}

.data-table tr.row-favorite-highlight:hover td,
.data-table tr.row-favorite-highlight:hover td.sticky-col {
  background-color: #d1d5db !important;
}

.data-table tr.row-favorite-highlight td.copyable:hover {
  background-color: #cbd5e1 !important;
  color: #0f172a !important;
}

.data-table tr.row-favorite-highlight td:first-child {
  border-left: 5px solid #475569 !important;
}

[data-theme="dark"] .data-table tr.row-favorite-highlight td,
[data-theme="dark"] .data-table tr.row-favorite-highlight td.sticky-col {
  background-color: #2c3a4f !important;
  color: var(--text-primary);
  border-bottom-color: var(--border-color);
}

[data-theme="dark"] .data-table tr.row-favorite-highlight:hover td,
[data-theme="dark"] .data-table tr.row-favorite-highlight:hover td.sticky-col {
  background-color: #364761 !important;
}

[data-theme="dark"] .data-table tr.row-favorite-highlight td.copyable:hover {
  background-color: #3f5270 !important;
  color: var(--text-primary) !important;
}

[data-theme="dark"] .data-table tr.row-favorite-highlight td:first-child {
  border-left: 5px solid #64748b !important;
}

[data-theme="dark"] .data-table tr.row-favorite-highlight .btn-row-copy {
  color: var(--text-secondary);
}

[data-theme="dark"] .data-table tr.row-favorite-highlight .btn-row-calc {
  color: #60a5fa;
}

/* Notes section */
.notes-card {
  padding: 12px 18px;
  background-color: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
  font-size: 12px;
  color: var(--text-secondary);
}

.notes-toggle-header {
  width: 100%;
  background: none;
  border: none;
  padding: 2px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 12.5px;
  font-weight: 700;
  text-align: left;
}

.notes-toggle-header:hover .notes-toggle-title {
  color: var(--accent);
}

.notes-toggle-caret {
  font-size: 11px;
  color: var(--text-muted);
  transition: transform 0.15s ease;
}

.notes-card ul {
  margin-top: 8px;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.notes-card.is-collapsed ul {
  display: none;
}

/* Modal for Diagrams */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.65);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  backdrop-filter: blur(2px);
}

.modal-overlay.active,
.modal-overlay.open {
  display: flex;
}

.modal-content {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  max-width: 90vw;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  animation: modalScale 0.2s ease-out;
}

@keyframes modalScale {
  from { transform: scale(0.96); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-muted);
  line-height: 1;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 16px;
  overflow-y: auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.modal-diagram-img {
  max-width: calc(100% - 24px);
  max-height: calc(100% - 24px);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
  pointer-events: none;
  user-select: none;
  background-color: #ffffff;
}

/* Interactive Diagram Zoom & Pan Viewer */
.diagram-modal-dialog {
  width: min(1180px, 94vw);
  height: 90vh;
  max-width: 94vw;
  max-height: 92vh;
}

.diagram-modal-header {
  gap: 12px;
  flex-wrap: wrap;
}

.diagram-modal-header h3 {
  flex: 1;
  min-width: 180px;
}

.diagram-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.diagram-page-controls,
.diagram-zoom-controls {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 6px;
  border-radius: 6px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
}

.diagram-tool-btn {
  border: 1px solid var(--border-dark);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 700;
  min-width: 28px;
  height: 26px;
  padding: 0 8px;
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.12s ease, background-color 0.12s ease, color 0.12s ease;
}

.diagram-tool-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--accent-light);
}

.diagram-tool-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.diagram-tool-reset {
  font-weight: 600;
  margin-left: 2px;
}

.diagram-zoom-label,
.diagram-page-indicator {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
  min-width: 48px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.diagram-viewport {
  flex: 1;
  min-height: 0;
  width: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-tertiary);
  cursor: grab;
  user-select: none;
  touch-action: none;
}

.diagram-viewport.is-panning {
  cursor: grabbing;
}

.diagram-stage {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform-origin: center center;
  will-change: transform;
}

.diagram-hint-badge {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 12px;
  border-radius: 14px;
  background-color: rgba(15, 23, 42, 0.72);
  color: #f8fafc;
  font-size: 11px;
  font-weight: 500;
  pointer-events: none;
  white-space: nowrap;
  z-index: 5;
}

/* Toast Notification */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast,
.toast-item {
  background-color: var(--text-primary);
  color: var(--bg-secondary);
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
  animation: slideUp 0.2s ease-out;
  pointer-events: auto;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast-fade-out {
  opacity: 0;
  transform: translateY(8px);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================================
   Global Cross-Section Search UI
   ============================================================================ */
.sidebar-global-search {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-sidebar-search {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 8px;
  border-radius: 6px;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-tertiary);
  color: var(--text-muted);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
  text-align: left;
}

.btn-sidebar-search:hover {
  border-color: var(--accent);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.sidebar-search-placeholder {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.kbd-hint {
  font-family: inherit;
  font-size: 10px;
  font-weight: 600;
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-secondary);
  color: var(--text-muted);
  line-height: 1.4;
}

.btn-global-search {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-dark);
  color: var(--text-primary);
}

.btn-global-search:hover {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--accent-light);
}

.btn-filter-global {
  padding: 4px 10px;
  font-size: 12px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-dark);
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-filter-global:hover {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--accent-light);
}

.btn-filter-fav {
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-dark);
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.15s ease;
}

.btn-filter-fav:hover {
  border-color: #64748b;
  color: #0f172a;
  background-color: #e2e8f0;
}

.btn-filter-fav.active {
  border-color: #475569;
  background-color: #e2e8f0;
  color: #0f172a;
  box-shadow: 0 0 0 1px rgba(71, 85, 105, 0.25);
}

[data-theme="dark"] .btn-filter-fav:hover,
[data-theme="dark"] .btn-filter-fav.active {
  background-color: #e2e8f0;
  border-color: #94a3b8;
  color: #0f172a;
}

.fav-filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 11px;
  font-weight: 700;
  border-radius: 999px;
  background-color: #e2e8f0;
  color: #0f172a;
}

[data-theme="dark"] .fav-filter-count {
  background-color: #475569;
  color: #f8fafc;
}

.btn-filter-fav.active .fav-filter-count {
  background-color: #334155;
  color: #ffffff;
}

.btn-inline-reset-fav {
  margin-top: 10px;
  margin-left: 6px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid #64748b;
  background-color: #e2e8f0;
  color: #0f172a;
  cursor: pointer;
}

[data-theme="dark"] .btn-inline-reset-fav {
  background-color: #e2e8f0;
  color: #0f172a;
}

.btn-inline-reset-fav:hover {
  background-color: #cbd5e1;
  color: #0f172a;
}

.btn-inline-global-search {
  margin-top: 10px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid var(--accent-border);
  background-color: var(--accent-light);
  color: var(--accent);
  cursor: pointer;
}

.btn-inline-global-search:hover {
  background-color: var(--accent);
  color: #ffffff;
}

/* Global Search Modal */
.global-search-overlay {
  align-items: flex-start;
  padding-top: 6vh;
}

.global-search-dialog {
  width: min(860px, 94vw);
  max-height: 84vh;
  border: 1px solid var(--border-dark);
}

.global-search-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.global-search-icon {
  font-size: 18px;
  line-height: 1;
}

.global-search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 500;
  padding: 4px 0;
}

.global-search-input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

.global-search-clear {
  border: none;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.global-search-clear:hover {
  background: var(--border-dark);
  color: var(--text-primary);
}

.global-search-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 16px;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.global-search-filters {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.gs-filter-chip {
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 14px;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.gs-filter-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.gs-filter-chip.active {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.global-search-summary {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.global-search-results {
  flex: 1;
  overflow-y: auto;
  padding: 10px 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 220px;
  max-height: 58vh;
  background-color: var(--bg-primary);
}

.gs-group-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  padding: 6px 8px 2px;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gs-result-item {
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 5px;
  transition: border-color 0.12s ease, background-color 0.12s ease, transform 0.08s ease;
}

.gs-result-item:hover,
.gs-result-item.is-selected {
  border-color: var(--accent);
  background-color: var(--accent-light);
}

.gs-result-item.is-selected {
  box-shadow: inset 3px 0 0 var(--accent);
}

.gs-item-top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.gs-sec-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 5px;
  background-color: var(--accent-light);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  white-space: nowrap;
}

.gs-tab-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 5px;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  white-space: nowrap;
}

.gs-fav-star {
  font-size: 13px;
  line-height: 1;
}

.gs-item-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.gs-item-secname {
  font-size: 11px;
  color: var(--text-muted);
  margin-left: auto;
}

.gs-spec-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.gs-spec-chip {
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 4px;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

.gs-spec-chip.is-match {
  background-color: #fef3c7;
  color: #92400e;
  font-weight: 600;
}

[data-theme="dark"] .gs-spec-chip.is-match {
  background-color: rgba(245, 158, 11, 0.25);
  color: #fde68a;
}

.gs-item-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}

mark.gs-hl {
  background-color: #fde047;
  color: #0f172a;
  padding: 0 2px;
  border-radius: 2px;
}

[data-theme="dark"] mark.gs-hl {
  background-color: #ca8a04;
  color: #ffffff;
}

.gs-empty-state {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

.gs-quick-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}

.gs-quick-tag {
  padding: 5px 12px;
  border-radius: 16px;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.gs-quick-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--accent-light);
}

.global-search-footer {
  padding: 8px 16px;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 11px;
  color: var(--text-muted);
}

.global-search-footer kbd {
  font-family: inherit;
  font-size: 10px;
  font-weight: 600;
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
}

/* Jump target highlight pulse animation */
@keyframes rowJumpFlash {
  0% {
    background-color: #93c5fd !important;
  }
  50% {
    background-color: #bfdbfe !important;
  }
  100% {
    background-color: var(--bg-secondary);
  }
}

.data-table tr.row-search-jump-highlight td {
  background-color: #dbeafe !important;
  box-shadow: inset 0 2px 0 #3b82f6, inset 0 -2px 0 #3b82f6;
}

[data-theme="dark"] .data-table tr.row-search-jump-highlight td {
  background-color: #1e3a8a !important;
  color: #eff6ff;
  box-shadow: inset 0 2px 0 #60a5fa, inset 0 -2px 0 #60a5fa;
}

/* ============================================================================
   Right Calculation Sidebar (Allowable Stress with Lateral-Torsional Buckling)
   ============================================================================ */
.btn-calc-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-dark);
  color: var(--text-primary);
}

.btn-calc-toggle.active {
  background-color: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.calc-sidebar {
  width: clamp(310px, 25vw, 370px);
  min-width: clamp(310px, 25vw, 370px);
  background-color: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  box-shadow: -2px 0 8px rgba(15, 23, 42, 0.05);
}

.calc-sidebar.collapsed {
  display: none;
}

.calc-sidebar-header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-secondary);
}

.calc-header-title-row {
  display: flex;
  align-items: center;
  gap: 9px;
}

.calc-header-icon {
  font-size: 18px;
  background: var(--accent-light);
  color: var(--accent);
  padding: 6px;
  border-radius: 7px;
  line-height: 1;
}

.calc-sidebar-header h2 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.calc-sidebar-header p {
  font-size: 11px;
  color: var(--text-muted);
}

.calc-close-btn {
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}

.calc-close-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.calc-ref-bar {
  padding: 7px 12px;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
  font-size: 11px;
  color: var(--text-muted);
}

.calc-ref-chip,
.calc-copy-btn {
  border: 1px solid var(--border-dark);
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.12s ease;
}

.calc-ref-chip:hover,
.calc-copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--accent-light);
}

.calc-copy-btn {
  margin-left: auto;
}

.calc-scroll-body {
  flex: 1;
  overflow-y: auto;
  padding: 10px 12px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background-color: var(--bg-primary);
}

.calc-imported-banner {
  padding: 7px 10px;
  border-radius: 6px;
  background-color: var(--accent-light);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-size: 11.5px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.calc-clear-import-btn {
  flex-shrink: 0;
  border: 1px solid var(--accent-border);
  background: var(--bg-secondary);
  color: var(--accent);
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  cursor: pointer;
}

.calc-clear-import-btn:hover {
  background: var(--accent);
  color: #ffffff;
}

.calc-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.calc-card-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 5px;
}

.calc-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.calc-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.calc-field label {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.calc-input {
  width: 100%;
  padding: 5px 8px;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
  border: 1px solid var(--border-dark);
  border-radius: 5px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.12s ease;
}

.calc-input:focus {
  border-color: var(--accent);
}

.calc-input[readonly] {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
}

.calc-readonly-box {
  padding: 5px 8px;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 600;
}

.calc-ib-row {
  padding-top: 4px;
  border-top: 1px dashed var(--border-color);
}

.calc-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
}

.calc-preset-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.calc-mini-pill {
  font-size: 10.5px;
  padding: 2px 7px;
  border-radius: 12px;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
}

.calc-mini-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--accent-light);
}

.calc-note-inline {
  font-size: 11px;
  color: var(--text-muted);
  background-color: var(--bg-tertiary);
  padding: 4px 8px;
  border-radius: 4px;
  line-height: 1.35;
}

.calc-result-card {
  border-color: var(--accent-border);
  background-color: var(--bg-secondary);
}

.calc-kpi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.calc-kpi-card {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px 9px;
  background-color: var(--bg-primary);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.calc-kpi-card.is-primary {
  grid-column: 1 / -1;
  border-color: var(--accent-border);
  background-color: var(--accent-light);
}

.calc-kpi-label {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.calc-kpi-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 10px;
  background-color: var(--bg-secondary);
  color: var(--accent);
  border: 1px solid var(--accent-border);
}

.calc-kpi-values {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.calc-kpi-main {
  font-size: 17px;
  font-weight: 800;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.calc-kpi-short {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

.calc-kpi-sub {
  font-size: 11px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.calc-formula-details {
  font-size: 11px;
  color: var(--text-secondary);
  background-color: var(--bg-tertiary);
  padding: 7px 9px;
  border-radius: 6px;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
}

.calc-formula-details div + div {
  border-top: 1px dashed var(--border-color);
  margin-top: 3px;
  padding-top: 3px;
}

.calc-term-select {
  padding: 2px 6px;
  font-size: 11px;
  font-weight: 700;
  border-radius: 4px;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.calc-check-results {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.calc-check-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 5px 8px;
  border-radius: 5px;
  background-color: var(--bg-tertiary);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
}

.calc-badge-ok {
  font-size: 10.5px;
  font-weight: 800;
  padding: 1px 7px;
  border-radius: 10px;
  background-color: #dcfce7;
  color: #15803d;
}

.calc-badge-ng {
  font-size: 10.5px;
  font-weight: 800;
  padding: 1px 7px;
  border-radius: 10px;
  background-color: #fee2e2;
  color: #b91c1c;
}

[data-theme="dark"] .calc-badge-ok {
  background-color: rgba(34, 197, 94, 0.22);
  color: #86efac;
}

[data-theme="dark"] .calc-badge-ng {
  background-color: rgba(239, 68, 68, 0.25);
  color: #fca5a5;
}

.calc-card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.calc-card-title-row .calc-card-title {
  margin-bottom: 0;
}

.calc-auto-hint {
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  background-color: var(--accent-light);
  padding: 2px 7px;
  border-radius: 10px;
  white-space: nowrap;
}

.calc-spec-summary {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 7px;
  padding: 8px 9px;
}

.calc-spec-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.calc-spec-dim {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.calc-spec-badge {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-secondary);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 1px 6px;
  border-radius: 999px;
}

.calc-spec-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.calc-spec-chip {
  font-size: 10.5px;
  color: var(--text-secondary);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 6px;
  font-variant-numeric: tabular-nums;
}

.calc-spec-chip strong {
  color: var(--text-primary);
}

.calc-manual-edit {
  margin-top: 8px;
  border-top: 1px dashed var(--border-color);
  padding-top: 6px;
}

.calc-manual-edit summary {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 5px;
}

.calc-manual-edit summary::-webkit-details-marker {
  display: none;
}

.calc-manual-edit summary:hover {
  color: var(--accent);
}

.calc-manual-body {
  margin-top: 8px;
}

.data-table tr.row-calc-selected td {
  background-color: #dbeafe !important;
}

.data-table tr.row-calc-selected td.sticky-col {
  background-color: #dbeafe !important;
}

.data-table tr.row-calc-selected td:first-child {
  box-shadow: inset 3px 0 0 var(--accent);
}

[data-theme="dark"] .data-table tr.row-calc-selected td {
  background-color: #172554 !important;
}

[data-theme="dark"] .data-table tr.row-calc-selected td.sticky-col {
  background-color: #172554 !important;
}

@media (max-width: 1024px) {
  .calc-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 950;
    width: min(380px, 92vw);
    min-width: 0;
    box-shadow: -8px 0 24px rgba(15, 23, 42, 0.25);
  }
}

/* Settings Modal */
.settings-dialog {
  width: min(680px, 94vw);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
}

.settings-dialog .modal-header,
.settings-footer {
  flex-shrink: 0;
}

.settings-body {
  display: block;
  flex: 1 1 auto;
  min-height: 0;
  padding: 16px 20px;
  overflow-y: auto;
}

.settings-section {
  display: block;
  margin-bottom: 18px;
}

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

.settings-section-title {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.settings-vis-header .settings-section-title {
  margin-bottom: 2px;
}

.settings-hint {
  font-size: 11.5px;
  color: var(--text-muted);
}

.settings-switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
}

.settings-switch-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.settings-switch-text strong {
  font-size: 13px;
  color: var(--text-primary);
}

.settings-switch-text span {
  font-size: 11.5px;
  color: var(--text-muted);
}

.settings-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.settings-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.settings-switch-slider {
  position: absolute;
  inset: 0;
  background-color: var(--border-dark);
  border-radius: 999px;
  transition: background-color 0.2s ease;
  cursor: pointer;
}

.settings-switch-slider::before {
  content: "";
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: #ffffff;
  border-radius: 50%;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s ease;
}

.settings-switch input:checked + .settings-switch-slider {
  background-color: var(--accent);
}

.settings-switch input:checked + .settings-switch-slider::before {
  transform: translateX(20px);
}

.settings-vis-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.settings-vis-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.settings-hidden-summary {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-secondary);
}

.settings-reset-btn {
  padding: 4px 10px;
  font-size: 11.5px;
}

.settings-visibility-list {
  display: block;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--bg-primary);
  max-height: 46vh;
  overflow-y: auto;
  padding: 8px;
}

.settings-vis-chapter {
  display: block;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 8px;
}

.settings-vis-chapter:last-child {
  margin-bottom: 0;
}

.settings-vis-chapter-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 36px;
  padding: 8px 10px;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
}

.settings-vis-chapter-row label,
.settings-vis-sub-item {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.settings-vis-chapter-row input[type="checkbox"],
.settings-vis-sub-item input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: #dc2626;
  cursor: pointer;
  flex-shrink: 0;
}

.settings-vis-hidden-tag {
  font-size: 10.5px;
  font-weight: 600;
  color: #dc2626;
  background-color: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.25);
  padding: 1px 6px;
  border-radius: 999px;
  white-space: nowrap;
}

[data-theme="dark"] .settings-vis-hidden-tag {
  color: #f87171;
  background-color: rgba(248, 113, 113, 0.14);
  border-color: rgba(248, 113, 113, 0.3);
}

.settings-vis-sublist {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 4px 10px;
  padding: 8px 10px;
}

.settings-vis-sub-item {
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 12px;
  color: var(--text-secondary);
}

.settings-vis-sub-item:hover {
  background-color: var(--bg-tertiary);
}

.settings-vis-sub-item.is-hidden-item {
  opacity: 0.6;
  text-decoration: line-through;
}

.settings-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background-color: var(--bg-secondary);
}

.settings-reset-all-btn {
  color: #dc2626;
  border-color: rgba(220, 38, 38, 0.4);
  background-color: transparent;
}

.settings-reset-all-btn:hover {
  background-color: rgba(220, 38, 38, 0.1);
  border-color: #dc2626;
}

[data-theme="dark"] .settings-reset-all-btn {
  color: #f87171;
  border-color: rgba(248, 113, 113, 0.4);
}

[data-theme="dark"] .settings-reset-all-btn:hover {
  background-color: rgba(248, 113, 113, 0.14);
  border-color: #f87171;
}

.settings-reset-confirm {
  padding: 12px 20px;
  border-top: 1px solid rgba(220, 38, 38, 0.35);
  background-color: rgba(220, 38, 38, 0.08);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.settings-reset-confirm-msg {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text-primary);
  font-weight: 600;
}

.settings-reset-confirm-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.settings-reset-exec-btn {
  background-color: #dc2626;
  border-color: #dc2626;
  color: #ffffff;
}

.settings-reset-exec-btn:hover {
  background-color: #b91c1c;
  border-color: #b91c1c;
}

/* ===== Home Screen Styles ===== */
.btn-sidebar-home {
  flex-shrink: 0;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-sidebar-home:hover {
  background-color: var(--bg-tertiary);
}

.btn-sidebar-home.active {
  background-color: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

.home-dashboard {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 4px 2px 16px 2px;
}

.home-notice-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.home-notice-block h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 6px 0;
}

.home-notice-block p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
}

.home-disclaimer-box {
  background-color: var(--bg-tertiary);
  border-left: 4px solid #f59e0b;
  border-radius: 6px;
  padding: 12px 14px;
}

.home-disclaimer-box h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 4px 0;
}

.home-disclaimer-box p {
  font-size: 12px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0;
}

.home-links-section {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 18px 20px;
}

.home-links-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.home-links-header h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 3px 0;
}

.home-links-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin: 0;
}

.home-links-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.home-add-link-form {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 14px;
}

.home-form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 10px;
  margin-bottom: 10px;
}

.home-form-row label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.home-form-row .req {
  color: #ef4444;
}

.home-form-row input {
  padding: 7px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13px;
}

.home-form-actions {
  display: flex;
  gap: 8px;
}

.home-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.home-link-card {
  position: relative;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--bg-primary);
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.home-link-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.home-link-anchor {
  display: block;
  padding: 12px 32px 12px 14px;
  text-decoration: none;
  color: inherit;
}

.home-link-title {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.home-link-ext {
  font-size: 11px;
  opacity: 0.8;
}

.home-link-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 6px;
}

.home-link-url {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.home-link-del-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  opacity: 0.45;
  transition: opacity 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.home-link-card:hover .home-link-del-btn {
  opacity: 1;
}

.home-link-del-btn:hover {
  background-color: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

.home-links-empty {
  font-size: 13px;
  color: var(--text-muted);
  margin: 4px 0;
}

/* ===== Print Styles ===== */
@media print {
  @page {
    size: auto;
    margin: 10mm;
  }

  html, body, [data-theme="dark"] {
    background: #ffffff !important;
    color: #000000 !important;
    height: auto !important;
    overflow: visible !important;
  }

  .sidebar,
  .topbar,
  .calc-drawer,
  .table-controls,
  .modal-overlay,
  .toast-container,
  .copy-toast,
  .sub-tab-btn:not(.active),
  .tab-count-badge,
  .op-col,
  th.op-col,
  td.op-col {
    display: none !important;
  }

  .app-shell,
  .main-workspace,
  .content-body,
  .content-card,
  .table-wrapper,
  #table-container {
    display: block !important;
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    box-shadow: none !important;
    background: #ffffff !important;
    color: #000000 !important;
  }

  .card-header {
    padding: 0 0 8px 0 !important;
    border-bottom: 1px solid #999 !important;
    margin-bottom: 8px !important;
    background: #ffffff !important;
  }

  .sub-tab-btn.active {
    border: none !important;
    background: transparent !important;
    color: #000000 !important;
    padding: 2px 0 !important;
    font-size: 11px !important;
  }

  table {
    width: 100% !important;
    border-collapse: collapse !important;
    font-size: 9px !important;
  }

  thead {
    display: table-header-group !important;
  }

  tr {
    break-inside: avoid !important;
    page-break-inside: avoid !important;
  }

  th, td {
    border: 1px solid #999 !important;
    padding: 3px 4px !important;
    color: #000000 !important;
    background: #ffffff !important;
    position: static !important;
  }

  th {
    background: #f1f5f9 !important;
    font-weight: 700 !important;
  }

  .notes-section {
    margin-top: 10px !important;
    padding: 8px !important;
    border: 1px solid #ccc !important;
    background: #ffffff !important;
    color: #000000 !important;
  }

  .notes-list {
    display: block !important;
  }
}