/* =============================================================
   concept-map.css — AWS概念マップページ固有スタイル
   依存: css/variables.css デザイントークン
   WCAG 2.1 AA: テキスト #374151 on #fff = 7.5:1 ✓
                アクセント #dc7600 on #fff = 3.2:1 (大テキスト/UI) ✓
   ============================================================= */

/* ── スクリーンリーダー専用 ── */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* ── サイトヘッダー（固定） ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header, 1002);
  background: var(--color-primary, #232f3e);
  color: #fff;
  padding: 0.75rem 1rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.home-link {
  color: #fff;
  text-decoration: none;
  font-size: 0.875rem;
  white-space: nowrap;
}
.home-link:hover { text-decoration: underline; }
.page-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  color: #fff;             /* common.css h1{color:#374151} を上書き: 暗背景上で可視 */
}

/* ── メインレイアウト ── */
.concept-map-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

/* ============================================================
   検索バー (US2)
   ============================================================ */
.search-section {
  margin-bottom: 1rem;
  position: relative;
}
.search-bar-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.concept-search-input {
  width: 100%;
  padding: 0.625rem 2.5rem 0.625rem 0.75rem;
  border: 2px solid #d1d5db;
  border-radius: 0.5rem;
  font-size: 1rem;
  color: #374151;          /* 7.5:1 on #fff ✓ */
  background: #fff;
  transition: border-color 0.15s;
}
.concept-search-input:focus {
  outline: 3px solid transparent;
  outline-offset: 2px;
  border-color: var(--color-accent, #dc7600);
  box-shadow: 0 0 0 3px rgba(220,118,0,0.2);
}
.search-icon {
  position: absolute;
  right: 0.75rem;
  pointer-events: none;
  font-size: 1rem;
}

/* 検索結果ドロップダウン */
.search-results {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: #fff;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.14);
  max-height: 320px;
  overflow-y: auto;
  z-index: 100;
  padding: 0.25rem 0;
}
.search-result-item {
  padding: 0.5rem 0.875rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.search-result-item:hover,
.search-result-item:focus {
  background: #f3f4f6;
  outline: none;
}
.result-name-ja {
  font-weight: 600;
  color: #1f2937;
  font-size: 0.875rem;
}
.result-name-en {
  font-size: 0.75rem;
  color: #6b7280;
}
.search-empty {
  color: #6b7280;
  font-size: 0.875rem;
  padding: 0.5rem 0;
}

/* ============================================================
   タグフィルタパネル (US3)  T030
   ============================================================ */
.tag-filter-section {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
}
.tag-filter-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-start;
}
.tag-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  flex: 1;
  min-width: 220px;
}
.tag-group-label {
  font-size: 0.6875rem;
  font-weight: 700;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0;
  border: none;
  padding: 0;
}
.tag-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

/* タグボタン通常・選択・ホバー */
.tag-btn {
  padding: 0.25rem 0.625rem;
  border: 1px solid #d1d5db;
  border-radius: 1rem;
  background: #fff;
  color: #374151;          /* 7.5:1 ✓ */
  font-size: 0.75rem;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  line-height: 1.4;
}
.tag-btn:hover {
  background: #f3f4f6;
  border-color: #9ca3af;
}
.tag-btn:focus-visible {
  outline: 3px solid rgba(220,118,0,0.5);
  outline-offset: 2px;
}
.tag-btn.active {
  background: var(--color-accent, #dc7600);
  border-color: var(--color-accent, #dc7600);
  color: #fff;
  font-weight: 600;
}
.tag-btn.active:hover {
  background: #c46900;
  border-color: #c46900;
}

/* クリアボタン */
.clear-filters-btn {
  align-self: flex-end;
  padding: 0.25rem 0.75rem;
  border: 1px solid #dc2626;
  border-radius: 0.375rem;
  background: #fff;
  color: #dc2626;
  font-size: 0.75rem;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.12s;
}
.clear-filters-btn:hover { background: #fee2e2; }
.clear-filters-btn:focus-visible {
  outline: 3px solid rgba(220,38,38,0.3);
  outline-offset: 2px;
}

/* ============================================================
   アコーディオンツリー共通 (US1)  T019
   ============================================================ */
.concept-tree-section { }
.concept-tree {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.loading-msg { color: #6b7280; font-size: 0.875rem; }
.empty-children-msg {
  font-size: 0.75rem;
  color: #9ca3af;
  padding: 0.25rem 0.75rem;
  font-style: italic;
}

/* アコーディオン子エリア */
.tree-children[hidden] { display: none; }

/* 子が表示された瞬間にスライドダウンアニメーション */
.tree-children:not([hidden]) {
  animation: cmSlideDown 0.15s ease-out;
}
@keyframes cmSlideDown {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ツリーボタン共通 */
.tree-btn {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0;
  font-family: inherit;
  line-height: 1.4;
}
.tree-btn:focus-visible {
  outline: 3px solid rgba(220,118,0,0.5);
  outline-offset: 2px;
  border-radius: 0.25rem;
}
.tree-arrow {
  font-size: 0.6rem;
  flex-shrink: 0;
  transition: transform 0.15s;
  color: #9ca3af;
  width: 0.75rem;
  display: inline-block;
  text-align: center;
}

/* ── レイヤーバッジ ── */
.layer-badge {
  font-size: 0.6rem;
  font-weight: 700;
  padding: 0.05rem 0.3rem;
  border-radius: 0.25rem;
  flex-shrink: 0;
  letter-spacing: 0.03em;
}
.l1-badge { background: #1f2937; color: #f3f4f6; }
.l2-badge { background: #374151; color: #e5e7eb; }
.l3-badge { background: #dc7600; color: #fff; }
.l4-badge { background: #d97706; color: #fff; }

/* ノード名 */
.node-name-ja {
  font-weight: 600;
  color: inherit;
  flex: 1;
}
.node-name-en {
  font-size: 0.75rem;
  color: #6b7280;
  font-weight: 400;
  flex-shrink: 0;
}

/* 軸ミニバッジ（サービスボタン内） */
.axis-mini-badges {
  display: flex;
  gap: 0.2rem;
  flex-wrap: wrap;
  margin-left: auto;
}
.axis-mini-badge {
  font-size: 0.55rem;
  padding: 0.05rem 0.25rem;
  border-radius: 0.2rem;
  background: #e5e7eb;
  color: #374151;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ============================================================
   Layer1 ドメイン
   ============================================================ */
.layer1-item {
  margin-bottom: 0.375rem;
}
.domain-btn {
  padding: 0.625rem 1rem;
  background: #1f2937;
  color: #f3f4f6;            /* 12:1 ✓ */
  border-radius: 0.4rem;
  font-size: 0.9rem;
  transition: background 0.12s;
}
.domain-btn:hover { background: #374151; }
.layer1-item[aria-expanded="true"] > .domain-btn { background: #374151; }

/* ドメイン dimmed（全サービスがフィルタで非表示） */
.domain-dimmed > .domain-btn {
  opacity: 0.4;
}

/* Layer1 子コンテナ */
.layer1-item > .tree-children {
  padding-left: 1rem;
  border-left: 2px solid #374151;
  margin-top: 0.25rem;
}

/* ============================================================
   Layer2 サービス
   ============================================================ */
.layer2-item {
  margin: 0.25rem 0;
}
.service-btn {
  padding: 0.4rem 0.75rem;
  background: #fff;
  color: #1f2937;            /* 16.5:1 ✓ */
  border: 1px solid #d1d5db;
  border-left: 3px solid #9ca3af;
  border-radius: 0 0.25rem 0.25rem 0;
  font-size: 0.875rem;
  transition: background 0.12s, border-left-color 0.12s;
}
.service-btn:hover {
  background: #f9fafb;
  border-left-color: var(--color-accent, #dc7600);
}
.layer2-item[aria-expanded="true"] > .service-btn {
  background: #fffbf5;
  border-left-color: var(--color-accent, #dc7600);
}

/* Layer2 子コンテナ */
.layer2-item > .tree-children {
  padding: 0.5rem 0.75rem;
  background: #fafafa;
  border: 1px solid #e5e7eb;
  border-top: none;
  border-radius: 0 0 0.25rem 0.25rem;
}

/* ============================================================
   Layer3 概念
   ============================================================ */
.layer3-item {
  margin: 0.25rem 0;
}
.concept-btn {
  padding: 0.375rem 0.625rem;
  background: #f9fafb;
  color: #374151;            /* 7.5:1 ✓ */
  border: 1px solid #e5e7eb;
  border-radius: 0.25rem;
  font-size: 0.8125rem;
  transition: background 0.12s;
}
.concept-btn:hover { background: #f3f4f6; }
.layer3-item[aria-expanded="true"] > .concept-btn {
  background: #fff7ed;
  border-color: #fdba74;
}

/* Layer3 子コンテナ */
.layer3-item > .tree-children {
  padding: 0.375rem 0.75rem;
  border-left: 2px solid #fde68a;
  margin-top: 0.125rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

/* 概念説明文 */
.concept-desc {
  font-size: 0.8rem;
  color: #374151;
  line-height: 1.5;
  margin: 0;
}

/* SAP Tip (T019/T030) */
.sap-tip {
  font-size: 0.7rem;
  color: #92400e;
  background: #fff7ed;
  border: 1px solid #fde68a;
  border-radius: 0.25rem;
  padding: 0.25rem 0.5rem;
  margin: 0;
  line-height: 1.5;
}
.service-sap-tip { margin-bottom: 0.375rem; }
.sap-tip-label {
  font-weight: 700;
  margin-right: 0.375rem;
  color: #d97706;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================================
   Layer4 キーワード
   ============================================================ */
.layer4-item {
  padding: 0.3rem 0.5rem;
  border-left: 2px solid #d1d5db;
  margin: 0.125rem 0;
}
.keyword-content {
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
  flex-wrap: wrap;
}
.keyword-desc {
  font-size: 0.75rem;
  color: #374151;
  margin: 0.125rem 0 0 0;
  line-height: 1.4;
  width: 100%;
}

/* ============================================================
   クロスリンクバッジ (US4)  T034
   ============================================================ */
.crosslink-section {
  margin: 0.5rem 0 0.25rem;
  padding: 0.375rem 0.5rem;
  background: #f8faff;
  border: 1px solid #dbeafe;
  border-radius: 0.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
}
.crosslink-label {
  font-size: 0.65rem;
  color: #6b7280;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0;
  flex-shrink: 0;
}

/* タイプ別色分け */
.crosslink-badge {
  padding: 0.2rem 0.6rem;
  border-radius: 1rem;
  font-size: 0.7rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid;
  transition: opacity 0.12s, transform 0.1s;
  line-height: 1.4;
}
.crosslink-badge:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}
.crosslink-badge:focus-visible {
  outline: 3px solid rgba(220,118,0,0.4);
  outline-offset: 2px;
}
.crosslink-type-related  { background: #dbeafe; color: #1e40af; border-color: #93c5fd; }
.crosslink-type-extends  { background: #dcfce7; color: #166534; border-color: #86efac; }
.crosslink-type-requires { background: #fce7f3; color: #9d174d; border-color: #f9a8d4; }

/* ============================================================
   ノードハイライト（検索結果クリック / クロスリンク移動）
   ============================================================ */
.node-highlight {
  animation: cmHighlight 2s ease-out;
}
@keyframes cmHighlight {
  0%   { box-shadow: 0 0 0 4px rgba(220,118,0,0.7); border-radius: 4px; }
  100% { box-shadow: 0 0 0 0px rgba(220,118,0,0); }
}


/* ============================================================
   レスポンシブ (320px〜1920px)  T019/T025
   ============================================================ */
@media (max-width: 479px) {
  .concept-map-main { padding: 0.5rem; }
  .tag-filter-inner { flex-direction: column; }
  .tag-group { min-width: 0; width: 100%; }
  .domain-btn { font-size: 0.8125rem; padding: 0.5rem 0.75rem; }
  .service-btn { font-size: 0.8125rem; }
  .concept-btn { font-size: 0.75rem; }
  .node-name-en { display: none; }   /* 小画面では英語名を省略 */
  .axis-mini-badges { display: none; }
}

@media (min-width: 480px) and (max-width: 767px) {
  .concept-map-main { padding: 0.75rem; }
}

@media (min-width: 1024px) {
  .concept-map-main { padding: 1.5rem 2rem; }
  .layer2-item > .tree-children { padding: 0.625rem 1rem; }
}

@media (min-width: 1280px) {
  .concept-map-main { max-width: 1400px; }
}

/* ============================================================
   詳細トグル（3 パネル共通）  WCAG AA
   ============================================================ */
.detail-toggle { margin-top: 0.35rem; }

.detail-toggle-btn {
  width: 100%;
  text-align: left;
  background: none;
  border: 1px solid #e5e7eb;
  border-radius: 0.375rem;
  padding: 0.3rem 0.55rem;
  font-size: 0.775rem;
  color: #4b5563;        /* 5.74:1 on #fff ✓ WCAG AA */
  cursor: pointer;
  transition: background-color 0.1s;
  font-family: inherit;
}
.detail-toggle-btn:hover { background: #f9fafb; }
.detail-toggle-btn:focus-visible { outline: 2px solid #dc7600; outline-offset: 1px; }
.detail-toggle-btn[aria-expanded="true"] { background: #f3f4f6; }

.detail-toggle-panel {
  padding: 0.45rem 0.7rem;
  background: #f9fafb;
  border-left: 3px solid #d1d5db;
  margin-top: 0.2rem;
  font-size: 0.8rem;
  line-height: 1.65;
  color: #374151;        /* 7.5:1 on #f9fafb ✓ WCAG AA */
}
.detail-body { margin: 0; }

/* ── SVG 図コンテナ ── */
.detail-toggle-panel.diagram-panel { padding: 0.5rem 0.25rem; background: #fff; }
.diagram-panel svg { max-width: 100%; height: auto; display: block; margin: 0 auto; }

/* ── 外部SVG概念図（D2生成） ── */
.detail-toggle-panel.svg-diagram-panel { padding: 1rem 0.5rem; background: #fff; text-align: center; }
.svg-diagram-img { max-width: 100%; height: auto; display: block; margin: 0 auto; }
@media (min-width: 1024px) {
  .svg-diagram-img { max-width: 600px; }
}

/* Layer4 展開可能キーワード */
.keyword-expandable { cursor: pointer; }
.keyword-expandable .keyword-header {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  flex-wrap: wrap;
}
.keyword-expandable .kw-expand-indicator {
  font-size: 0.6rem;
  color: #9ca3af;
  margin-left: 0.25rem;
}
.keyword-expandable[aria-expanded="true"] .kw-expand-indicator { color: #dc7600; }
.keyword-expandable > .tree-children { margin-top: 0.25rem; padding-left: 0.25rem; }


/* ============================================================
   認知負荷最小化 UI改善パッチ (2026-02-21)
   変更範囲: UIレイヤーのみ。JSロジック・HTMLデータ構造は変更なし。
   ============================================================ */

/* ① 中央カラム化
   1200px（最大1400px）では視線移動距離が長く疲労しやすい。
   900px に絞り、行の可読文字数を読みやすい範囲に収める。         */
.concept-map-main {
  max-width: 900px;             /* 1200px → 900px */
}
@media (min-width: 1280px) {
  /* 既存 max-width: 1400px を後勝ちで上書き */
  .concept-map-main { max-width: 900px; }
}

/* ② SVG図コンテナを再設計
   コンパクトな padding では図が「主役」の情報量で主張する。
   余白を 40px 以上に広げ、補助図として格下げする。               */
.detail-toggle-panel.diagram-panel {
  padding: 2.5rem;              /* 0.5rem/0.25rem → 40px */
  background: #fdfdfd;          /* わずかに明るい背景で区画を示す */
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}
.diagram-panel svg {
  max-width: 600px;             /* 100% → 600px で過大展開を防ぐ */
}

/* ③ SAP Tip の強調を弱める
   オレンジ塗りつぶしがツリー全体の視線を奪っていた。
   左ボーダーのみに変更し「補足情報」として位置付ける。           */
.sap-tip {
  background: transparent;            /* 塗りつぶし廃止 */
  border: none;                       /* 全辺ボーダー廃止 */
  border-left: 3px solid #d97706;    /* 左ボーダーのみ残す */
  border-radius: 0;
  padding: 0.25rem 0.5rem 0.25rem 0.625rem;
  color: #6b7280;                     /* 強調色 → 副次テキスト色へ抑制 */
  line-height: 1.8;
}
.sap-tip-label {
  color: #9ca3af;                     /* ラベルもさらに控えめに */
}

/* ④ 関連サービスバッジ → テキストリンク表現へ
   色付き塗りつぶしはコンテンツ情報と誤認されやすい。
   下線のみのテキストリンク風にしてナビ補助として格下げ。         */
.crosslink-section {
  background: transparent;     /* 青みがかった背景廃止 */
  border: none;                /* 枠線廃止 */
  padding: 0.25rem 0;
}
.crosslink-badge {
  background: transparent;
  border: none;
  border-bottom: 1px solid currentColor;  /* 下線のみでリンク感を示す */
  border-radius: 0;
  padding: 0.05rem 0.15rem;
  font-weight: 400;            /* Bold廃止で主張を弱める */
  font-size: 0.8rem;
}
.crosslink-badge:hover {
  opacity: 0.75;
  transform: none;             /* 浮き上がりエフェクト廃止 */
}
/* タイプ別: アクセシブルなリンク色 (WCAG AA ≥4.5:1 on #fff) */
.crosslink-type-related  { color: #2563eb; }   /* 関連: 青  5.5:1 ✓ */
.crosslink-type-extends  { color: #166534; }   /* 拡張: 緑  6.3:1 ✓ */
.crosslink-type-requires { color: #9333ea; }   /* 依存: 紫  5.0:1 ✓ */

/* ⑤ フォント階層を明確化
   13〜14px 帯に集中していた各層を分離。
   フォントサイズの差で Layer 階層を瞬時に識別できるようにする。  */
.service-btn  { font-size: 1.5rem; }    /* L2 Service:  24px */
.concept-btn  { font-size: 1.125rem; }  /* L3 Concept:  18px */
.layer4-item  { font-size: 1rem; }      /* L4 Keyword:  16px */

/* ⑥ 行間 1.8 以上へ
   日本語長文は行間 1.5 以下で可読性が低下する。
   説明文・Tip・詳細パネルに統一適用。                           */
.concept-desc,
.keyword-desc,
.detail-body {
  line-height: 1.8;
}


/* ============================================================
   Dark Mode — Concept Map
   ============================================================ */

/* Search */
[data-theme="dark"] .search-results {
  background: var(--ds-bg-card, #1E293B);
  border-color: var(--ds-border, #334155);
}

[data-theme="dark"] .search-result-item:hover,
[data-theme="dark"] .search-result-item:focus {
  background: #334155;
}

[data-theme="dark"] .result-name-ja {
  color: var(--ds-text, #F1F5F9);
}

[data-theme="dark"] .result-name-en {
  color: var(--ds-text-tertiary, #94A3B8);
}

/* Tag filter */
[data-theme="dark"] .tag-filter-section {
  background: var(--ds-bg-inset, #0F172A);
  border-color: var(--ds-border, #334155);
}

[data-theme="dark"] .tag-group-label {
  color: var(--ds-text-tertiary, #94A3B8);
}

[data-theme="dark"] .tag-btn {
  background: var(--ds-bg-card, #1E293B);
  color: var(--ds-text-secondary, #CBD5E1);
  border-color: var(--ds-border, #334155);
}

[data-theme="dark"] .tag-btn:hover {
  background: #334155;
  border-color: #475569;
}

[data-theme="dark"] .clear-filters-btn {
  background: var(--ds-bg-card, #1E293B);
}

/* Tree nodes */
[data-theme="dark"] .domain-btn {
  background: #0F172A;
  color: #F1F5F9;
}

[data-theme="dark"] .domain-btn:hover,
[data-theme="dark"] .layer1-item[aria-expanded="true"] > .domain-btn {
  background: #1E293B;
}

[data-theme="dark"] .layer1-item > .tree-children {
  border-left-color: #475569;
}

[data-theme="dark"] .service-btn {
  background: var(--ds-bg-card, #1E293B);
  color: var(--ds-text, #F1F5F9);
  border-color: var(--ds-border, #334155);
  border-left-color: #475569;
}

[data-theme="dark"] .service-btn:hover {
  background: #334155;
  border-left-color: #dc7600;
}

[data-theme="dark"] .layer2-item[aria-expanded="true"] > .service-btn {
  background: rgba(220, 118, 0, 0.08);
  border-left-color: #dc7600;
}

[data-theme="dark"] .layer2-item > .tree-children {
  background: var(--ds-bg-inset, #0F172A);
  border-color: var(--ds-border, #334155);
}

[data-theme="dark"] .concept-btn {
  background: var(--ds-bg-card, #1E293B);
  color: var(--ds-text-secondary, #CBD5E1);
  border-color: var(--ds-border, #334155);
}

[data-theme="dark"] .concept-btn:hover {
  background: #334155;
}

[data-theme="dark"] .layer3-item[aria-expanded="true"] > .concept-btn {
  background: rgba(220, 118, 0, 0.1);
  border-color: #dc7600;
}

[data-theme="dark"] .layer3-item > .tree-children {
  border-left-color: rgba(220, 118, 0, 0.3);
}

[data-theme="dark"] .concept-desc,
[data-theme="dark"] .keyword-desc {
  color: var(--ds-text-secondary, #CBD5E1);
}

[data-theme="dark"] .node-name-en {
  color: var(--ds-text-tertiary, #94A3B8);
}

[data-theme="dark"] .axis-mini-badge {
  background: #334155;
  color: var(--ds-text-secondary, #CBD5E1);
}

/* SAP Tips */
[data-theme="dark"] .sap-tip {
  border-left-color: #d97706;
  color: var(--ds-text-tertiary, #94A3B8);
}

[data-theme="dark"] .sap-tip-label {
  color: #FBBF24;
}

/* Crosslinks */
[data-theme="dark"] .crosslink-type-related  { color: #60A5FA; }
[data-theme="dark"] .crosslink-type-extends  { color: #86EFAC; }
[data-theme="dark"] .crosslink-type-requires { color: #C084FC; }

/* Layer4 */
[data-theme="dark"] .layer4-item {
  border-left-color: var(--ds-border, #334155);
}

/* Detail toggle */
[data-theme="dark"] .detail-toggle-btn {
  color: var(--ds-text-secondary, #CBD5E1);
  border-color: var(--ds-border, #334155);
}

[data-theme="dark"] .detail-toggle-btn:hover {
  background: #334155;
}

[data-theme="dark"] .detail-toggle-btn[aria-expanded="true"] {
  background: var(--ds-bg-inset, #0F172A);
}

[data-theme="dark"] .detail-toggle-panel {
  background: var(--ds-bg-inset, #0F172A);
  border-left-color: #475569;
  color: var(--ds-text-secondary, #CBD5E1);
}

[data-theme="dark"] .detail-toggle-panel.diagram-panel {
  background: var(--ds-bg-card, #1E293B);
}

[data-theme="dark"] .detail-toggle-panel.svg-diagram-panel {
  background: var(--ds-bg-card, #1E293B);
}
[data-theme="dark"] .svg-diagram-img {
  filter: invert(0.88) hue-rotate(180deg);
}

/* Loading */
[data-theme="dark"] .loading-msg {
  color: var(--ds-text-tertiary, #94A3B8);
}

[data-theme="dark"] .empty-children-msg {
  color: var(--ds-text-muted, #64748B);
}