/* BLOG index — Articles + Notes */

/* Pagefind 検索（Component UI） */
html.theme-impact body.page-blog .blog-search {
  --pf-text: rgb(26, 26, 26);
  --pf-text-secondary: #333333;
  --pf-text-muted: #666666;
  --pf-background: #ffffff;
  --pf-border: rgb(26, 26, 26);
  --pf-border-focus: rgb(26, 26, 26);
  --pf-skeleton: #f0f0f0;
  --pf-skeleton-shine: #fafafa;
  --pf-hover: #f5f5f5;
  --pf-mark: rgb(26, 26, 26);
  --pf-scroll-shadow: rgba(0, 0, 0, 0.08);
  --pf-shadow-sm: none;
  --pf-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
  --pf-shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.16);
  --pf-outline-focus: rgb(26, 26, 26);
  --pf-outline-width: 2px;
  --pf-font: "Noto Sans JP", "Outfit", sans-serif;
  --pf-input-height: 44px;
  --pf-input-font-size: 16px;
  --pf-summary-font-size: 0.75rem;
  --pf-result-title-font-size: 0.95rem;
  --pf-result-excerpt-font-size: 0.82rem;
  --pf-border-radius: 0;
  --pf-searchbox-max-width: 100%;
  --pf-searchbox-dropdown-max-height: min(60dvh, 420px);
  --pf-dropdown-z-index: 40;
  margin: 0 0 clamp(20px, 3vw, 28px);
  max-width: 36rem;
}

html.theme-impact body.page-blog .blog-pagefind-search {
  display: block;
  width: 100%;
}

html.theme-impact body.page-blog .blog-hub {
  display: grid;
  gap: clamp(56px, 8vw, 96px);
}

html.theme-impact body.page-blog .blog-section-block.is-section-hidden,
html.theme-impact body.page-blog .blog-section-block[hidden] {
  display: none;
}

html.theme-impact body.page-blog .blog-section-head {
  margin-bottom: clamp(24px, 4vw, 36px);
}

/* ナレッジ・記事のタグ／カテゴリフィルター（コンパクト） */
html.theme-impact body.page-blog .filter-bar {
  gap: 6px;
  margin-bottom: 16px;
}

html.theme-impact body.page-blog .filter-btn {
  padding: 4px 10px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-width: 1px;
}

html.theme-impact body.page-blog .blog-section-head h2 {
  margin: 0 0 12px;
  font-family: var(--imp-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

html.theme-impact body.page-blog .blog-section-head p {
  margin: 0;
  max-width: 42em;
  font-size: var(--imp-text-section);
  line-height: var(--imp-line-height-body);
}

html.theme-impact body.page-blog .blog-section-label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--imp-display);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

html.theme-impact body.page-blog .blog-anchor-nav {
  margin-bottom: clamp(32px, 5vw, 48px);
}

html.theme-impact body.page-blog .blog-articles-grid,
html.theme-impact body.page-blog .blog-notes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 20px);
}

html.theme-impact .blog-article-card,
html.theme-impact .blog-note-card {
  border: 2px solid var(--imp-line);
  background: var(--imp-bg);
}

html.theme-impact .blog-article-card.is-hidden,
html.theme-impact .blog-note-card.is-hidden {
  display: none;
}

/* Note cards (compact) — 記事カードも同じスタイルを共用 */
html.theme-impact .blog-note-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

html.theme-impact .blog-note-card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 2px solid var(--imp-line);
  background: var(--imp-soft);
}

html.theme-impact .blog-note-card-media :is(img, video) {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

html.theme-impact .blog-note-card-media img {
  filter: grayscale(12%);
  transition: filter 0.3s ease, transform 0.4s ease;
}

html.theme-impact .blog-note-card:hover .blog-note-card-media img {
  filter: grayscale(0%);
  transform: scale(1.04);
}

html.theme-impact .blog-note-card-media--placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  background-color: var(--note-ph-color, var(--imp-soft));
  background-image: var(--imp-dot-pattern);
  background-size: var(--imp-dot-step) var(--imp-dot-step);
}

/* カテゴリ別のプレースホルダー背景色
   未使用の予備色は --note-ph-spare-* 。新カテゴリ追加時に割り当てる */
html.theme-impact {
  --note-ph-spare-1: #9ae6ff; /* スカイ */
  --note-ph-spare-2: #ffc2e8; /* ローズ */
  --note-ph-spare-3: #c8f5a0; /* ライトグリーン */
  --note-ph-spare-4: #ffe08a; /* アンバー */
  --note-ph-spare-5: #c4b5fd; /* バイオレット */
  --note-ph-spare-6: #67e8f9; /* シアン */
}

html.theme-impact .blog-note-card-media--placeholder[data-category="Tips"] {
  --note-ph-color: #ccff00;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="MPM"] {
  --note-ph-color: #ff9398;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="RBD"] {
  --note-ph-color: #7fd8ff;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="VEX"] {
  --note-ph-color: #ffd23f;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="ノード"] {
  --note-ph-color: #a6f0b5;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="ワークフロー"] {
  --note-ph-color: #d3b8ff;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="Houdini"] {
  --note-ph-color: #ffb877;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="Maya"] {
  --note-ph-color: #86efac;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="Unreal Engine 5"],
html.theme-impact .blog-note-card-media--placeholder[data-category="UE5"] {
  --note-ph-color: #93c5fd;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="チュートリアル"] {
  --note-ph-color: #67e8f9;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="CREATORS TABLE"] {
  --note-ph-color: #f9a8d4;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="イベント"] {
  --note-ph-color: #fdba74;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="あいさつ"] {
  --note-ph-color: #fde68a;
}
html.theme-impact .blog-note-card-media--placeholder[data-category="サイト"] {
  --note-ph-color: #c4b5fd;
}

/* 予備スロット（category 名を決めたら上のルールに移すか、ここを書き換える） */
html.theme-impact .blog-note-card-media--placeholder[data-category="spare-1"] {
  --note-ph-color: var(--note-ph-spare-1);
}
html.theme-impact .blog-note-card-media--placeholder[data-category="spare-2"] {
  --note-ph-color: var(--note-ph-spare-2);
}
html.theme-impact .blog-note-card-media--placeholder[data-category="spare-3"] {
  --note-ph-color: var(--note-ph-spare-3);
}
html.theme-impact .blog-note-card-media--placeholder[data-category="spare-4"] {
  --note-ph-color: var(--note-ph-spare-4);
}
html.theme-impact .blog-note-card-media--placeholder[data-category="spare-5"] {
  --note-ph-color: var(--note-ph-spare-5);
}
html.theme-impact .blog-note-card-media--placeholder[data-category="spare-6"] {
  --note-ph-color: var(--note-ph-spare-6);
}

html.theme-impact .blog-note-card-media--placeholder span {
  font-family: var(--imp-display);
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--imp-ink);
  opacity: 0.72;
}

html.theme-impact .blog-note-card-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 3px 8px;
  border: 2px solid var(--imp-line);
  background: var(--imp-bg);
  font-family: var(--imp-display);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

html.theme-impact .blog-note-card-body {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 8px;
  padding: clamp(12px, 2vw, 16px);
}

html.theme-impact .blog-note-card-body h3 {
  margin: 0;
  font-family: var(--imp-display);
  font-size: clamp(0.9rem, 1.4vw, 1rem);
  font-weight: 900;
  line-height: 1.3;
}

html.theme-impact .blog-note-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

html.theme-impact .blog-note-card-tags li {
  font-family: var(--imp-display);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  opacity: 0.65;
}

html.theme-impact .blog-note-card-tags li::before {
  content: '#';
  opacity: 0.6;
}

html.theme-impact .blog-note-card-date {
  margin-top: auto;
  padding-top: 4px;
  font-family: var(--imp-display);
  font-size: 0.66rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.7;
}

/* カード上の著者・表示回数（記事・ナレッジ共通） */
html.theme-impact .blog-note-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 1.1em;
}

html.theme-impact .blog-card-author {
  font-family: var(--imp-display);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.7;
  min-width: 0;
}

html.theme-impact .blog-note-card .blog-card-author {
  padding-top: 0;
}

/* Shared tag list (article cards / post detail) */
html.theme-impact .blog-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

html.theme-impact .blog-tag-list li {
  padding: 4px 10px;
  border: 2px solid var(--imp-line);
  background: var(--imp-soft);
  font-family: var(--imp-display);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

html.theme-impact .blog-tag-list .blog-tag-link::before {
  content: '#';
  opacity: 0.6;
}

html.theme-impact .blog-empty-panel {
  padding: var(--imp-card-padding);
  border: 2px solid var(--imp-line);
  background: var(--imp-soft);
  text-align: center;
}

html.theme-impact .blog-empty-panel h3 {
  margin: 0 0 12px;
  font-family: var(--imp-display);
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  font-weight: 900;
}

html.theme-impact .blog-empty-panel p {
  margin: 0 auto;
  max-width: 36em;
  font-size: var(--imp-text-section);
  line-height: var(--imp-line-height-body);
}

html.theme-impact .blog-empty-panel p + p {
  margin-top: 12px;
}

/* 「記事一覧を見る」リンク（トップの記事セクション下） */
html.theme-impact .blog-more {
  margin-top: clamp(24px, 3vw, 32px);
  display: flex;
  justify-content: center;
}

html.theme-impact .blog-more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border: 2px solid var(--imp-line);
  background: var(--imp-bg);
  font-family: var(--imp-display);
  font-weight: 900;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: inherit;
  transition: background-color 0.18s ease, color 0.18s ease;
}

html.theme-impact .blog-more-link::after {
  content: "→";
  transition: transform 0.18s ease;
}

html.theme-impact .blog-more-link:hover {
  background: var(--imp-ink);
  color: var(--imp-bg);
}

html.theme-impact .blog-more-link:hover::after {
  transform: translateX(4px);
}

/* 記事一覧ページのページネーション */
html.theme-impact .blog-articles-empty {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: var(--imp-text-section);
}

html.theme-impact .blog-pagination {
  margin-top: clamp(28px, 4vw, 40px);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

html.theme-impact .blog-pagination-btn {
  min-width: 44px;
  padding: 10px 14px;
  border: 2px solid var(--imp-line);
  background: var(--imp-bg);
  font-family: var(--imp-display);
  font-weight: 900;
  font-size: 0.9rem;
  line-height: 1;
  color: inherit;
  cursor: pointer;
  transition: background-color 0.16s ease, color 0.16s ease;
}

html.theme-impact .blog-pagination-btn:hover:not(:disabled) {
  background: var(--imp-band-lime);
}

html.theme-impact .blog-pagination-btn.is-current {
  background: var(--imp-ink);
  color: var(--imp-bg);
}

html.theme-impact .blog-pagination-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

html.theme-impact body.page-blog .blog-section-block--notes {
  margin-inline: calc(50% - 50vw);
  padding: clamp(56px, 8vw, 96px) calc(50vw - 50%);
  border-top: 2px solid var(--imp-line);
  border-bottom: 2px solid var(--imp-line);
  background-color: var(--imp-bg);
  background-image: var(--imp-dot-pattern);
  background-size: var(--imp-dot-step) var(--imp-dot-step);
}

html.theme-impact body.page-blog .blog-hub > .cta-band {
  margin-top: 0;
}

/* 記事セクションとナレッジセクションの区切り線 */
html.theme-impact body.page-blog #notes.blog-section-block {
  padding-top: clamp(40px, 6vw, 72px);
  border-top: 2px solid var(--imp-line);
}

/* 個別ページ・ブログトップはヒーローが無いので、固定ヘッダー分の上余白を確保する */
html.theme-impact body.page-blog-detail .page-body {
  padding-top: var(--header-h);
}

html.theme-impact body.page-blog-top .page-body {
  padding-top: calc(var(--header-h) + clamp(20px, 3vw, 36px));
}

/* 全幅は他ページよりやや広め（3カラム時に中央を確保） */
html.theme-impact body.page-blog-detail .page-body-inner,
html.theme-impact body.page-blog-index .page-body-inner {
  width: min(92%, 1480px);
  max-width: min(92%, 1480px);
}

@media (max-width: 767px) {
  /* モバイルはブログ本文の可読幅を広げる（外側の左右余白を抑える） */
  html.theme-impact body.page-blog-detail .page-body-inner,
  html.theme-impact body.page-blog-index .page-body-inner {
    width: calc(100% - 2 * clamp(8px, 2.5vw, 14px));
    max-width: calc(100% - 2 * clamp(8px, 2.5vw, 14px));
  }

  html.theme-impact body.page-blog-detail .blog-post-read {
    padding: clamp(24px, 4vw, 36px) clamp(18px, 4vw, 28px);
  }
}

/* パンくずリスト */
html.theme-impact .blog-breadcrumbs {
  margin-bottom: clamp(12px, 2vw, 20px);
}

html.theme-impact .blog-breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--imp-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

html.theme-impact .blog-breadcrumbs li {
  display: inline-flex;
  align-items: center;
}

html.theme-impact .blog-breadcrumbs li + li::before {
  content: "/";
  margin: 0 8px;
  opacity: 0.35;
}

html.theme-impact .blog-breadcrumbs a {
  color: inherit;
  text-decoration: none;
  opacity: 0.55;
  transition: opacity 0.18s ease;
}

html.theme-impact .blog-breadcrumbs a:hover {
  opacity: 1;
  text-decoration: underline;
  text-underline-offset: 2px;
}

html.theme-impact .blog-breadcrumbs [aria-current="page"] {
  opacity: 0.85;
  max-width: min(100%, 36ch);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── 個別ページ 3カラムレイアウト ── */
html.theme-impact .blog-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 44px);
}

html.theme-impact .blog-detail-main {
  min-width: 0;
  order: -1;
}

/* 読み物エリア（本文）だけワントーン明るい白パネルにする。
   いいね／関連ノート等は白にしない */
html.theme-impact body.page-blog-detail .blog-post-read {
  display: grid;
  gap: clamp(36px, 5.5vw, 56px);
  background: #ffffff;
  border: 1px solid var(--imp-line);
  padding: clamp(28px, 4vw, 44px) clamp(24px, 3.5vw, 40px);
}

@media (min-width: 1080px) {
  html.theme-impact body.page-blog-detail .blog-post-read {
    padding: clamp(36px, 4vw, 52px) clamp(36px, 4vw, 56px);
  }
}

html.theme-impact .blog-detail-side-title {
  margin: 0 0 14px;
  font-family: var(--imp-display);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--imp-line);
}

/* 左: カテゴリツリー */
html.theme-impact .blog-detail-nav {
  --blog-nav-gutter: 10px;
}

html.theme-impact .blog-cat-tree {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--blog-nav-gutter);
}

/* 「すべて」 */
html.theme-impact .blog-cat-all {
  display: flex;
  align-items: center;
  padding: 11px 14px;
  color: inherit;
  text-decoration: none;
  font-family: var(--imp-display);
  font-weight: 900;
  border: 2px solid var(--imp-line);
  background: var(--imp-bg);
  transition: background 0.18s ease, color 0.18s ease;
}

html.theme-impact .blog-cat-all:hover {
  background: var(--imp-band-lime);
}

html.theme-impact .blog-cat-tree > li.is-active > .blog-cat-all,
html.theme-impact .blog-cat-all.is-active {
  background: var(--imp-ink);
  color: var(--imp-bg);
}

/* グループ（details）を囲みのあるブロックに */
html.theme-impact .blog-cat-tree > li > details {
  border: 2px solid var(--imp-line);
  background: var(--imp-bg);
}

html.theme-impact .blog-cat-tree summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 11px 14px;
  cursor: pointer;
  list-style: none;
  font-family: var(--imp-display);
  font-weight: 900;
  transition: background 0.18s ease;
}

html.theme-impact .blog-cat-tree summary:hover {
  background: var(--imp-soft);
}

/* グループタイトルのリンク（クリックでカテゴリ一覧へ） */
html.theme-impact .blog-cat-tool-link {
  flex: 1 1 auto;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

html.theme-impact .blog-cat-tool-link:hover .blog-cat-tool {
  text-decoration: underline;
  text-underline-offset: 3px;
}

html.theme-impact .blog-cat-tool-link.is-active .blog-cat-tool {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ナレッジ親: 配下ツール選択中もラベルを強調 */
html.theme-impact .blog-cat-tree > li.is-active > .blog-cat-knowledge > summary .blog-cat-tool {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 開いているときはヘッダーと中身を区切る */
html.theme-impact .blog-cat-tree details[open] > summary {
  border-bottom: 2px solid var(--imp-line);
}

html.theme-impact .blog-cat-tree summary::-webkit-details-marker {
  display: none;
}

html.theme-impact .blog-cat-tree summary::after {
  content: "＋";
  font-size: 0.9em;
  font-weight: 900;
  opacity: 0.7;
}

html.theme-impact .blog-cat-tree details[open] > summary::after {
  content: "－";
}

html.theme-impact .blog-cat-tool {
  font-size: 0.95rem;
}

html.theme-impact .blog-cat-count {
  font-family: var(--imp-display);
  font-size: 0.7rem;
  font-weight: 900;
  opacity: 0.55;
}

html.theme-impact .blog-cat-sub {
  margin: 0;
  padding: 8px;
  list-style: none;
  display: grid;
  gap: 2px;
}

html.theme-impact .blog-cat-sub a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  color: inherit;
  text-decoration: none;
  font-size: 0.85rem;
  line-height: 1.3;
  transition: background 0.18s ease, color 0.18s ease;
}

html.theme-impact .blog-cat-sub a:hover {
  background: var(--imp-band-lime);
}

html.theme-impact .blog-cat-sub a.is-active {
  background: var(--imp-ink);
  color: #fff;
}

html.theme-impact .blog-cat-sub a.is-active .blog-cat-count {
  color: #fff;
  opacity: 0.7;
}

/* ナレッジ配下のツール一覧 */
html.theme-impact .blog-cat-tools {
  margin: 0;
  padding: 8px;
  list-style: none;
  display: grid;
  gap: var(--blog-nav-gutter);
}

html.theme-impact .blog-cat-tools > li > details {
  border: 1.5px solid rgba(0, 0, 0, 0.18);
  background: var(--imp-soft);
}

html.theme-impact .blog-cat-tools > li > details > summary {
  padding: 9px 12px;
  background: transparent;
}

html.theme-impact .blog-cat-tools > li > details > summary:hover {
  background: var(--imp-band-lime);
}

html.theme-impact .blog-cat-tools > li > details[open] > summary {
  border-bottom: 1.5px solid rgba(0, 0, 0, 0.14);
}

html.theme-impact .blog-cat-tools .blog-cat-tool {
  font-size: 0.88rem;
}

html.theme-impact .blog-cat-tools .blog-cat-sub {
  padding: 6px;
  background: var(--imp-bg);
}

/* 準備中グループ（サブカテゴリなし） */
html.theme-impact .blog-cat-empty {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 11px 14px;
  border: 2px dashed var(--imp-line);
  font-family: var(--imp-display);
  font-weight: 900;
  opacity: 0.55;
}

html.theme-impact .blog-cat-tools .blog-cat-empty {
  padding: 9px 12px;
  border-width: 1.5px;
  background: transparent;
}

html.theme-impact .blog-cat-soon {
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border: 1.5px solid currentColor;
}

/* 右: 目次（ページ内リンク） */
html.theme-impact .blog-detail-toc nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

html.theme-impact .blog-detail-toc a {
  display: block;
  padding: 6px 10px;
  color: inherit;
  text-decoration: none;
  font-size: 0.82rem;
  line-height: 1.4;
  border-left: 2px solid transparent;
  transition: background 0.2s ease, border-color 0.2s ease;
}

html.theme-impact .blog-detail-toc li.is-sub a {
  padding-left: 22px;
  font-size: 0.78rem;
  opacity: 0.8;
}

html.theme-impact .blog-detail-toc a:hover {
  background: var(--imp-soft);
}

html.theme-impact .blog-detail-toc a.is-current {
  border-left-color: var(--imp-ink);
  background: var(--imp-soft);
  font-weight: 700;
}

@media (min-width: 1080px) {
  html.theme-impact .blog-detail {
    grid-template-columns: minmax(212px, 252px) minmax(0, 1fr) minmax(140px, 168px);
    column-gap: clamp(16px, 2vw, 28px);
    row-gap: 0;
    align-items: start;
  }

  /* 目次が無い（短い）記事でも 3 カラム幅を維持する。
     右カラムのトラックは確保したまま空にする */
  html.theme-impact .blog-detail--no-toc {
    grid-template-columns: minmax(212px, 252px) minmax(0, 1fr) minmax(140px, 168px);
  }

  /* 一覧: 中間幅では左右+中央が窮屈なので、まず カテゴリ＋本文 の2カラム */
  html.theme-impact body.page-blog-index .blog-detail {
    grid-template-columns: minmax(212px, 252px) minmax(0, 1fr);
    column-gap: clamp(16px, 2vw, 28px);
    min-height: calc(100vh - var(--header-h) - 40px);
  }

  html.theme-impact body.page-blog-index .blog-detail-toc {
    display: none;
  }

  html.theme-impact .blog-detail-main {
    order: 0;
    min-width: 0;
  }

  html.theme-impact .blog-detail-nav,
  html.theme-impact .blog-detail-toc {
    min-width: 0;
    position: sticky;
    top: calc(var(--header-h) + 20px);
    max-height: calc(100vh - var(--header-h) - 40px);
    overflow-y: auto;
    overflow-x: hidden;
    /* ブロック間の縦余白と同じ値で、スクロールバーとの横余白を揃える */
    padding-right: var(--blog-nav-gutter, 10px);
    box-sizing: border-box;
  }

  html.theme-impact .blog-detail-toc {
    --blog-nav-gutter: 10px;
  }
}

/* 一覧: 十分な幅になってから目次を戻す */
@media (min-width: 1320px) {
  html.theme-impact body.page-blog-index .blog-detail {
    grid-template-columns: minmax(212px, 252px) minmax(0, 1fr) minmax(130px, 156px);
    column-gap: clamp(16px, 2vw, 28px);
  }

  html.theme-impact body.page-blog-index .blog-detail-toc {
    display: block;
  }
}

html.theme-impact .blog-post {
  display: grid;
  gap: clamp(32px, 5vw, 48px);
  min-width: 0;
  /* 関連ノート〜前後ナビの左右インセット */
  --blog-related-gutter: clamp(12px, 2.8vw, 32px);
  /* 記事内タイポグラフィ（サイト全体の --imp-p-scale から独立した段階） */
  --blog-body: clamp(1rem, 0.96rem + 0.28vw, 1.1rem);
  --blog-lead: clamp(1.08rem, 1.02rem + 0.3vw, 1.2rem);
  --blog-h2: clamp(1.2rem, 1.1rem + 0.45vw, 1.4rem);
  --blog-h3: clamp(1.12rem, 1.04rem + 0.35vw, 1.28rem);
  --blog-h4: clamp(1rem, 0.96rem + 0.2vw, 1.1rem);
  --blog-small: 0.85rem;
  --blog-caption: 0.72rem;
  --blog-line: 2;
}

/* 幅の広い表やコードがあっても中央カラムからはみ出さないようにする */
html.theme-impact .blog-post > * {
  min-width: 0;
}

html.theme-impact .blog-post-body {
  min-width: 0;
  max-width: 100%;
}

html.theme-impact .blog-post-eyebrow {
  margin: 0 0 12px;
  font-family: var(--imp-display);
  font-size: var(--blog-caption);
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.65;
}

html.theme-impact .blog-post-header h1 {
  margin: 0 0 18px;
  font-family: var(--imp-display);
  font-size: clamp(1.65rem, 1.25rem + 1.6vw, 2.35rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

html.theme-impact .blog-post-description {
  margin: 0 0 22px;
  font-size: var(--blog-lead);
  line-height: var(--blog-line);
  opacity: 0.9;
}

html.theme-impact .blog-post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 24px;
  margin: 0;
}

html.theme-impact .blog-post-meta div {
  display: flex;
  align-items: center;
  gap: 6px;
}

html.theme-impact .blog-post-meta dt {
  margin: 0;
  font-family: var(--imp-display);
  font-size: var(--blog-caption);
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.5;
}

html.theme-impact .blog-post-meta dd {
  margin: 0;
  font-size: var(--blog-small);
  font-weight: 500;
  opacity: 0.85;
}

html.theme-impact .blog-post-meta-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s ease;
}

html.theme-impact .blog-post-meta-link:hover {
  border-bottom-color: currentColor;
}

html.theme-impact .blog-view-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
}

html.theme-impact .blog-view-icon svg {
  display: block;
}

html.theme-impact .blog-post-meta-views {
  align-items: center;
  gap: 0;
}

html.theme-impact .blog-post-meta-views dt.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html.theme-impact .blog-post-meta-views dd {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 0.28em;
  margin: 0;
  font-size: var(--blog-small);
  font-weight: 500;
  line-height: 1;
  opacity: 0.85;
}

html.theme-impact .blog-post-meta-views .blog-view-icon {
  display: block;
  flex: 0 0 auto;
  width: 0.92em;
  height: 0.92em;
  line-height: 0;
  /* アイコンが文字より上に浮くのを抑える */
  transform: translateY(0.08em);
  opacity: 0.9;
}

html.theme-impact .blog-post-meta-views .blog-view-icon svg {
  display: block;
  width: 100%;
  height: 100%;
  vertical-align: middle;
}

html.theme-impact .blog-post-meta-views [data-view-count] {
  display: inline-block;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

html.theme-impact .blog-note-card-views {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: inherit;
  font-family: var(--imp-display);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1;
  opacity: 0.7;
  flex-shrink: 0;
}

html.theme-impact .blog-note-card-views .blog-view-icon {
  opacity: 0.95;
}

html.theme-impact .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 執筆者フィルター中バナー */
html.theme-impact .blog-author-filter {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  padding: 10px 14px;
  background: #ffffff;
  border: 2px solid var(--imp-line);
  font-size: var(--blog-small);
}

html.theme-impact .blog-author-filter-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.6;
}

html.theme-impact .blog-author-filter-name {
  font-weight: 700;
}

html.theme-impact .blog-author-filter-clear {
  margin-left: auto;
  color: inherit;
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 600;
  border-bottom: 1px solid currentColor;
}

html.theme-impact .blog-author-filter-clear:hover {
  opacity: 0.6;
}

html.theme-impact .blog-post-tags {
  margin-top: 14px;
}

html.theme-impact .blog-post-tags.blog-tag-list li {
  font-size: var(--blog-caption);
  font-weight: 700;
  letter-spacing: 0.04em;
}

html.theme-impact .blog-tag-link {
  display: inline-block;
  color: inherit;
  text-decoration: none;
  transition: background 0.18s ease, color 0.18s ease;
}

html.theme-impact .blog-post-tags .blog-tag-link {
  margin: -4px -10px;
  padding: 4px 10px;
}

html.theme-impact .blog-post-tags li:hover {
  background: var(--imp-band-lime);
}

html.theme-impact .blog-post-cover,
html.theme-impact .blog-post-cover img {
  margin: 0;
  border: none;
  outline: none;
  box-shadow: none;
}

html.theme-impact .blog-post-cover img {
  display: block;
  width: 100%;
  height: auto;
  background: transparent;
}

html.theme-impact .blog-post-body.prose {
  font-size: var(--blog-body);
  line-height: var(--blog-line);
  color: var(--imp-ink);
}

html.theme-impact .blog-post-body.prose :is(h2, h3, h4) {
  margin: 2.2em 0 0.7em;
  font-family: var(--imp-display);
  font-weight: 900;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

html.theme-impact .blog-post-body.prose :is(h2, h3, h4):first-child {
  margin-top: 0;
}

html.theme-impact .blog-post-body.prose h2 {
  font-size: var(--blog-h2);
}

html.theme-impact .blog-post-body.prose h3 {
  font-size: var(--blog-h3);
}

html.theme-impact .blog-post-body.prose h4 {
  font-size: var(--blog-h4);
}

/* 区切り線 */
html.theme-impact .blog-post-body.prose hr,
html.theme-impact .blog-post-body.prose .blog-hr {
  display: block;
  width: 100%;
  height: 0;
  margin: 2.2em 0;
  border: 0;
  border-top: 1px solid var(--imp-line);
  background: none;
}

html.theme-impact .blog-post-body.prose .blog-hr--thick {
  border-top-width: 2px;
}

html.theme-impact .blog-post-body.prose :is(p, ul, ol, blockquote, pre, table) {
  margin: 0 0 1.6em;
}

html.theme-impact .blog-post-body.prose :is(ul, ol) li {
  margin-bottom: 0.6em;
  line-height: 1.85;
}

html.theme-impact .blog-post-body.prose ul,
html.theme-impact .blog-post-body.prose ol {
  padding-left: 1.4em;
}

html.theme-impact .blog-post-body.prose blockquote {
  padding: 12px 16px;
  border-left: 4px solid var(--imp-line);
  background: var(--imp-soft);
  font-size: 0.96em;
}

html.theme-impact .blog-post-body.prose table {
  width: max-content;
  max-width: 100%;
  border-collapse: collapse;
  font-size: 0.92em;
  overflow-x: auto;
  display: block;
}

html.theme-impact .blog-post-body.prose th,
html.theme-impact .blog-post-body.prose td {
  padding: 8px 10px;
  border: 1px solid var(--imp-line);
  vertical-align: top;
  font-size: inherit;
}

/* インラインコード（文中）は明るい配色でブロックと区別する */
html.theme-impact .blog-post-body.prose :not(pre) > code {
  font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  font-size: 0.88em;
  padding: 0.1em 0.35em;
  border: 1px solid var(--imp-line);
  border-radius: 4px;
  background: var(--imp-soft);
  color: #b3005c;
  word-break: break-word;
}

/* コードブロック（複数行）は暗い背景で一目で分かるように。
   黒枠は四辺すべてに回し、左のライムアクセントは inset 影で内側に描く
   （overflow で隠れないよう border ではなく box-shadow を使う） */
html.theme-impact .blog-post-body.prose pre {
  position: relative;
  margin: 1.35em 0;
  padding: 0;
  overflow: hidden;
  border: 2px solid var(--imp-line);
  border-radius: 0;
  background: #0d1117;
  color: #e6edf3;
  font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  font-size: 0.84em;
  line-height: 1.55;
  box-shadow: inset 6px 0 0 var(--imp-band-lime, #ccff00), 0 2px 0 rgba(0, 0, 0, 0.12);
}

html.theme-impact .blog-post-body.prose pre code {
  display: block;
  padding: 16px 18px 16px 22px;
  overflow-x: auto;
  background: transparent;
  border: 0;
  color: inherit;
  font-size: inherit;
  line-height: inherit;
}

/* Shiki（Astro のシンタックスハイライト / github-dark） */
html.theme-impact .blog-post-body.prose pre.astro-code {
  padding: 0;
}

html.theme-impact .blog-post-body.prose pre.astro-code code {
  padding: 16px 18px 16px 22px;
}

/* コピーボタン（右上） */
html.theme-impact .blog-post-body.prose pre .code-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid rgba(230, 237, 243, 0.25);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.08);
  color: #e6edf3;
  font-family: var(--imp-display);
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.18s ease, background 0.18s ease, border-color 0.18s ease, width 0.18s ease;
}

html.theme-impact .blog-post-body.prose pre:hover .code-copy-btn,
html.theme-impact .blog-post-body.prose pre .code-copy-btn:focus-visible {
  opacity: 1;
}

html.theme-impact .blog-post-body.prose pre .code-copy-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(230, 237, 243, 0.5);
}

html.theme-impact .blog-post-body.prose pre .code-copy-btn svg {
  width: 15px;
  height: 15px;
  display: block;
}

html.theme-impact .blog-post-body.prose pre .code-copy-btn.is-copied {
  width: auto;
  padding: 0 10px;
  background: var(--imp-band-lime, #ccff00);
  border-color: var(--imp-band-lime, #ccff00);
  color: #0d1117;
  opacity: 1;
}

html.theme-impact .blog-post-body.prose pre .code-copy-btn .code-copy-label {
  display: none;
}

html.theme-impact .blog-post-body.prose pre .code-copy-btn.is-copied .code-copy-label {
  display: inline;
}

html.theme-impact .blog-post-body.prose pre .code-copy-btn.is-copied svg {
  display: none;
}

html.theme-impact .blog-post-body.prose a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

html.theme-impact .blog-post-body.prose a:hover {
  background: var(--imp-band-lime);
  text-decoration: none;
}

html.theme-impact .blog-post-body.prose :is(img, video),
html.theme-impact .blog-post-read :is(img, video) {
  display: block;
  max-width: min(100%, var(--blog-media-max, 600px));
  height: auto;
  margin: 1.75em auto;
  border: none;
  outline: none;
  box-shadow: none;
  background: transparent;
}

html.theme-impact .blog-post-read :is(img, video).blog-media-zoomable {
  cursor: zoom-in;
}

/* カバーは本文メディア幅制限の対象外（フル幅） */
html.theme-impact .blog-post-cover img {
  max-width: 100%;
  margin: 0;
}

/* ブログ ライトボックス（画像・動画の拡大表示） */
body.blog-lightbox-open {
  overflow: hidden;
}

.blog-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: safe center;
  justify-content: safe center;
  padding: max(12px, env(safe-area-inset-top, 0px))
    max(12px, env(safe-area-inset-right, 0px))
    max(12px, env(safe-area-inset-bottom, 0px))
    max(12px, env(safe-area-inset-left, 0px));
  overflow: auto;
  overscroll-behavior: contain;
  box-sizing: border-box;
}

.blog-lightbox[hidden] {
  display: none !important;
}

.blog-lightbox-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 10, 14, 0.88);
  border: 0;
  cursor: zoom-out;
}

.blog-lightbox-panel {
  position: relative;
  z-index: 1;
  width: min(1100px, 100%);
  max-width: 100%;
  height: calc(100vh - 24px);
  height: calc(100dvh - 24px);
  max-height: calc(100vh - 24px);
  max-height: calc(100dvh - 24px);
  margin: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-sizing: border-box;
}

.blog-lightbox-stage {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-sizing: border-box;
}

.blog-lightbox-stage :is(img, video) {
  display: block;
  max-width: min(100%, calc(100vw - 24px));
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  margin: 0;
  background: #000;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.45);
}

.blog-lightbox-caption {
  margin: 0;
  max-width: min(48rem, 100%);
  text-align: center;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.92rem;
  line-height: 1.5;
  flex-shrink: 0;
}

.blog-lightbox-close,
.blog-lightbox-nav {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(18, 20, 24, 0.72);
  color: #fff;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.blog-lightbox-close:hover,
.blog-lightbox-nav:hover,
.blog-lightbox-close:focus-visible,
.blog-lightbox-nav:focus-visible {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.55);
  outline: none;
}

.blog-lightbox-close {
  position: fixed;
  top: max(12px, env(safe-area-inset-top, 0px));
  right: max(12px, env(safe-area-inset-right, 0px));
  width: 44px;
  height: 44px;
  border-radius: 999px;
  font-size: 1.6rem;
  line-height: 1;
  z-index: 2;
}

.blog-lightbox-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 999px;
  font-size: 2rem;
  line-height: 1;
  z-index: 2;
}

.blog-lightbox-nav--prev {
  left: max(8px, env(safe-area-inset-left, 0px));
}

.blog-lightbox-nav--next {
  right: max(8px, env(safe-area-inset-right, 0px));
}

.blog-lightbox-nav[hidden] {
  display: none !important;
}

@media (max-width: 720px) {
  .blog-lightbox-panel {
    height: calc(100vh - 16px);
    height: calc(100dvh - 16px);
    max-height: calc(100vh - 16px);
    max-height: calc(100dvh - 16px);
  }

  .blog-lightbox-stage :is(img, video) {
    max-width: min(100%, calc(100vw - 16px));
  }

  .blog-lightbox-nav {
    width: 40px;
    height: 40px;
    font-size: 1.6rem;
  }
}

/* 動画は少しだけ広く見せる（デモが見やすいように） */
html.theme-impact .blog-post-body.prose video {
  max-width: min(100%, var(--blog-media-max-video, 680px));
}

/* 比較レイアウト（複数カラムで並べて見比べる） */
html.theme-impact .blog-post-body.prose .blog-compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 28px);
  margin: 1.75em 0;
}

html.theme-impact .blog-post-body.prose .blog-compare-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  padding: clamp(14px, 2vw, 18px);
  border: 1px solid var(--imp-line);
  border-radius: 0;
  background: var(--imp-soft);
}

html.theme-impact .blog-post-body.prose .blog-compare-col :is(img, video) {
  width: 100%;
  max-width: 100%;
  margin: 0;
  border: none;
  background: var(--imp-bg);
}

html.theme-impact .blog-post-body.prose .blog-compare-value {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  margin: 0;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
  font-family: var(--imp-display);
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  font-weight: 900;
  line-height: 1;
}

html.theme-impact .blog-post-body.prose .blog-compare-value span {
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.7;
}

html.theme-impact .blog-post-body.prose .blog-compare-col figcaption {
  margin-top: auto;
  padding-top: 4px;
  font-size: var(--imp-type-card-body);
  line-height: var(--imp-line-height-body);
  color: var(--imp-muted);
}

@media (min-width: 720px) {
  html.theme-impact .blog-post-body.prose .blog-compare--1 {
    grid-template-columns: 1fr;
  }

  html.theme-impact .blog-post-body.prose .blog-compare--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(10px, 1.4vw, 14px);
  }

  html.theme-impact .blog-post-body.prose .blog-compare--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(8px, 1.2vw, 12px);
  }

  html.theme-impact .blog-post-body.prose .blog-compare--2 .blog-compare-value,
  html.theme-impact .blog-post-body.prose .blog-compare--3 .blog-compare-value {
    font-size: clamp(1.05rem, 1.8vw, 1.3rem);
    gap: 3px 8px;
    padding-bottom: 6px;
  }

  html.theme-impact .blog-post-body.prose .blog-compare--2 .blog-compare-value span,
  html.theme-impact .blog-post-body.prose .blog-compare--3 .blog-compare-value span {
    font-size: 0.62rem;
    letter-spacing: 0.06em;
  }

  html.theme-impact .blog-post-body.prose .blog-compare--2 .blog-compare-col figcaption,
  html.theme-impact .blog-post-body.prose .blog-compare--3 .blog-compare-col figcaption {
    font-size: 0.78rem;
    line-height: 1.55;
  }

  html.theme-impact .blog-post-body.prose .blog-compare--3 .blog-compare-col {
    gap: 10px;
    padding: clamp(10px, 1.4vw, 14px);
  }
}

/* YouTube などの埋め込み */
html.theme-impact .blog-post-body.prose .blog-embed {
  position: relative;
  width: 100%;
  max-width: min(100%, var(--blog-media-max-video, 680px));
  margin: 1.75em auto;
  aspect-ratio: 16 / 9;
  border: 2px solid var(--imp-line);
  background: var(--imp-soft);
}

html.theme-impact .blog-post-body.prose .blog-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  border: 0;
}

/* Steam store widget（646×190） */
html.theme-impact .blog-post-body.prose .blog-embed--steam {
  aspect-ratio: 646 / 190;
  max-width: min(100%, 646px);
  border: none;
  background: transparent;
}

/* ── 本文あしらい ── */

/* コールアウト: Tip / Note / Warn（左アクセント＋背景のみ） */
html.theme-impact .blog-post-body.prose .blog-callout {
  --blog-callout-accent: var(--imp-ink);
  margin: 1.5em 0;
  padding: 12px 16px 12px 18px;
  border: none;
  border-left: 4px solid var(--blog-callout-accent);
  background: var(--imp-soft);
  box-shadow: none;
}

html.theme-impact .blog-post-body.prose .blog-callout--tip {
  --blog-callout-accent: var(--imp-band-lime);
  background: color-mix(in srgb, var(--imp-band-lime) 18%, #fff);
}

html.theme-impact .blog-post-body.prose .blog-callout--note {
  --blog-callout-accent: var(--imp-ink);
  border: 1px solid var(--imp-line);
  border-left-width: 4px;
  border-left-color: var(--blog-callout-accent);
}

html.theme-impact .blog-post-body.prose .blog-callout--warn {
  --blog-callout-accent: var(--imp-accent);
  background: color-mix(in srgb, var(--imp-accent) 16%, #fff);
}

html.theme-impact .blog-post-body.prose .blog-callout-label {
  display: block;
  margin: 0 0 6px;
  font-family: var(--imp-display);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

html.theme-impact .blog-post-body.prose .blog-callout > :last-child {
  margin-bottom: 0;
}

html.theme-impact .blog-post-body.prose .blog-callout p {
  margin: 0.4em 0 0;
}

html.theme-impact .blog-post-body.prose .blog-callout p:first-of-type {
  margin-top: 0;
}

/* 手順ステップ */
html.theme-impact .blog-post-body.prose .blog-steps {
  display: grid;
  gap: 12px;
  margin: 1.5em 0;
  padding: 0;
  list-style: none;
  counter-reset: blog-step;
}

html.theme-impact .blog-post-body.prose .blog-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 14px;
  margin: 0;
  padding: 12px 14px;
  border: 1px solid var(--imp-line);
  background: #fff;
  counter-increment: blog-step;
}

html.theme-impact .blog-post-body.prose .blog-step::before {
  content: counter(blog-step);
  flex: none;
  align-self: start;
  min-width: 1.6em;
  font-family: var(--imp-display);
  font-size: 1.35rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
}

html.theme-impact .blog-post-body.prose .blog-step-body {
  min-width: 0;
}

html.theme-impact .blog-post-body.prose .blog-step-body > :first-child {
  margin-top: 0;
}

html.theme-impact .blog-post-body.prose .blog-step-body > :last-child {
  margin-bottom: 0;
}

html.theme-impact .blog-post-body.prose .blog-step-title {
  margin: 0 0 4px;
  font-family: var(--imp-display);
  font-size: 0.95em;
  font-weight: 900;
  line-height: 1.35;
}

/* Before / After */
html.theme-impact .blog-post-body.prose .blog-ba {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 2vw, 16px);
  margin: 1.75em 0;
}

html.theme-impact .blog-post-body.prose .blog-ba-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding: clamp(12px, 1.8vw, 16px);
  border: 1px solid var(--imp-line);
  background: var(--imp-soft);
}

html.theme-impact .blog-post-body.prose .blog-ba-label {
  margin: 0;
  font-family: var(--imp-display);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.7;
}

html.theme-impact .blog-post-body.prose .blog-ba-col :is(img, video) {
  width: 100%;
  max-width: 100%;
  margin: 0;
  border: none;
  background: var(--imp-bg);
}

html.theme-impact .blog-post-body.prose .blog-ba-col figcaption {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--imp-muted);
  opacity: 0.75;
}

@media (min-width: 720px) {
  html.theme-impact .blog-post-body.prose .blog-ba {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(10px, 1.4vw, 14px);
  }
}

/* キー操作・UIラベル */
html.theme-impact .blog-post-body.prose :is(kbd, .blog-kbd) {
  display: inline-block;
  margin: 0 0.12em;
  padding: 0.12em 0.45em;
  border: 1px solid var(--imp-line);
  border-bottom-width: 2px;
  border-radius: 3px;
  background: #fff;
  font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  font-size: 0.82em;
  font-weight: 600;
  line-height: 1.3;
  white-space: nowrap;
  vertical-align: baseline;
}

/* キャプション付き figure */
html.theme-impact .blog-post-body.prose .blog-figure {
  margin: 1.75em auto;
  max-width: min(100%, var(--blog-media-max, 600px));
}

html.theme-impact .blog-post-body.prose .blog-figure :is(img, video) {
  width: 100%;
  max-width: 100%;
  margin: 0;
  border: none;
  background: transparent;
}

html.theme-impact .blog-post-body.prose .blog-figure figcaption {
  margin: 8px 0 0;
  font-size: 0.78rem;
  line-height: 1.55;
  text-align: center;
  opacity: 0.7;
}

/* ファイル／ノードパス */
html.theme-impact .blog-post-body.prose .blog-path {
  display: block;
  margin: 1.25em 0;
  padding: 10px 14px;
  border: 1px solid var(--imp-line);
  background: var(--imp-soft);
  font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  font-size: 0.84em;
  line-height: 1.5;
  word-break: break-all;
}

html.theme-impact .blog-post-body.prose .blog-path-label {
  display: block;
  margin-bottom: 4px;
  font-family: var(--imp-display);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.55;
}

/* まとめボックス */
html.theme-impact .blog-post-body.prose .blog-summary {
  margin: 1.75em 0;
  padding: 16px 18px;
  border: 1px solid var(--imp-line);
  background: #fff;
}

html.theme-impact .blog-post-body.prose .blog-summary-title {
  margin: 0 0 10px;
  font-family: var(--imp-display);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

html.theme-impact .blog-post-body.prose .blog-summary :is(ul, ol) {
  margin: 0;
  padding-left: 1.25em;
}

html.theme-impact .blog-post-body.prose .blog-summary li {
  margin: 0.35em 0;
}

html.theme-impact .blog-post-body.prose .blog-summary > :last-child {
  margin-bottom: 0;
}

/* 外部参照・引用 */
html.theme-impact .blog-post-body.prose .blog-cite {
  margin: 1.5em 0;
  padding: 14px 16px;
  border: 1px dashed var(--imp-line);
  background: var(--imp-soft);
}

html.theme-impact .blog-post-body.prose .blog-cite-label {
  display: block;
  margin: 0 0 6px;
  font-family: var(--imp-display);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.55;
}

html.theme-impact .blog-post-body.prose .blog-cite p {
  margin: 0.35em 0 0;
}

html.theme-impact .blog-post-body.prose .blog-cite > :last-child {
  margin-bottom: 0;
}

/* 関連記事への誘導（「こちらに書かれています」） */
html.theme-impact .blog-post-body.prose .blog-seealso {
  display: grid;
  gap: 8px;
  margin: 1.5em 0;
  padding: 14px 16px;
  border: 1px solid var(--imp-line);
  background: #fff;
}

html.theme-impact .blog-post-body.prose .blog-seealso-label {
  margin: 0;
  font-family: var(--imp-display);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.55;
}

html.theme-impact .blog-post-body.prose .blog-seealso-text {
  margin: 0;
  font-size: 0.92em;
  line-height: 1.6;
}

html.theme-impact .blog-post-body.prose .blog-seealso-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
  font-family: var(--imp-display);
  font-size: 0.92em;
  font-weight: 900;
  line-height: 1.35;
  color: inherit;
  text-decoration: none;
  border-bottom: 2px solid var(--imp-band-lime);
}

html.theme-impact .blog-post-body.prose .blog-seealso-link::after {
  content: "→";
  flex: none;
  transition: transform 0.18s ease;
}

html.theme-impact .blog-post-body.prose .blog-seealso-link:hover {
  background: var(--imp-band-lime);
  text-decoration: none;
}

html.theme-impact .blog-post-body.prose .blog-seealso-link:hover::after {
  transform: translateX(3px);
}

html.theme-impact .blog-post-related {
  /* .blog-post の gap を相殺し、白パネル直下の空きを詰める */
  margin-top: calc(-1 * clamp(32px, 5vw, 48px) + clamp(14px, 2.2vw, 22px));
  margin-left: var(--blog-related-gutter);
  margin-right: var(--blog-related-gutter);
  padding-bottom: clamp(14px, 2.2vw, 20px);
  margin-bottom: 0;
  border-bottom: 2px solid var(--imp-line);
}

/* 本文下: 著者・リアクション（上下マージンは通常の半分） */
html.theme-impact .blog-post-footer {
  margin-top: clamp(20px, 3vw, 32px);
}

/* いいね／もっと読みたいは .blog-post-read の白パネル内に含まれる。
   grid gap で生じる本文との大きな空きを詰めて、記事と同じセクション感にする */
html.theme-impact body.page-blog-detail .blog-post-read .blog-post-footer {
  margin-top: calc(-1 * clamp(12px, 2vw, 20px));
}

html.theme-impact .blog-post-author {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  margin: 0 0 20px;
  font-size: var(--imp-type-card-body);
}

html.theme-impact .blog-post-author-label {
  font-family: var(--imp-display);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.65;
}

html.theme-impact .blog-post-author-name {
  font-family: var(--imp-display);
  font-size: 1.05rem;
  font-weight: 900;
}

/* いいね／もっと読みたい＋シェアを1行にまとめて中央寄せ */
html.theme-impact .blog-post-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 12px;
}

html.theme-impact .blog-post-reactions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* 反応とシェアの区切り（左右に余白をあけて別要素だと分かるように） */
html.theme-impact .blog-post-share-sep {
  width: 2px;
  align-self: stretch;
  min-height: 22px;
  margin: 0 clamp(12px, 2.5vw, 24px);
  background: var(--imp-line);
  opacity: 0.6;
}

html.theme-impact .blog-reaction-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  border: 2px solid var(--imp-line);
  background: var(--imp-bg);
  color: var(--imp-ink);
  font-family: var(--imp-display);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    transform 0.15s ease;
}

html.theme-impact .blog-reaction-btn:hover {
  background: var(--imp-soft);
}

html.theme-impact .blog-reaction-btn:active {
  transform: scale(0.97);
}

html.theme-impact .blog-reaction-btn.is-active {
  background: var(--imp-band-lime);
  border-color: var(--imp-ink);
}

html.theme-impact .blog-reaction-btn--want.is-active {
  background: #ff9398;
  border-color: var(--imp-ink);
}

html.theme-impact .blog-reaction-btn--want.is-active .blog-reaction-icon {
  color: #7c3aed;
}

html.theme-impact .blog-reaction-btn[data-reaction="like"].is-active .blog-reaction-icon {
  color: #e63946;
}

html.theme-impact .blog-reaction-icon {
  font-size: 0.95rem;
  line-height: 1;
  transition: transform 0.2s ease, color 0.2s ease;
}

/* 「もっと読みたい」の ✦ は見た目が小さいので一回り大きく */
html.theme-impact .blog-reaction-btn--want .blog-reaction-icon {
  font-size: 1.25rem;
}

html.theme-impact .blog-reaction-btn.is-active .blog-reaction-icon {
  transform: scale(1.15);
}

html.theme-impact .blog-reaction-label {
  line-height: 1.2;
}

/* リアクションの集計カウント（ボタン右側の数字） */
html.theme-impact .blog-reaction-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1em;
  margin-left: 2px;
  font-family: var(--imp-display);
  font-size: 0.72rem;
  font-weight: 900;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

/* ===== シェアボタン（反応ボタンと同じ行にアイコンだけで並べる） ===== */
html.theme-impact .blog-post-share {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

html.theme-impact .blog-share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 2px solid var(--imp-line);
  background: var(--imp-bg);
  color: var(--imp-ink);
  font-family: var(--imp-display);
  font-size: 0.85rem;
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease,
    transform 0.15s ease;
}

html.theme-impact .blog-share-btn:hover {
  background: var(--imp-ink);
  color: var(--imp-bg);
  border-color: var(--imp-ink);
}

html.theme-impact .blog-share-btn:active {
  transform: scale(0.96);
}

html.theme-impact .blog-share-btn--copy.is-copied {
  background: var(--imp-band-lime);
  border-color: var(--imp-ink);
  color: var(--imp-ink);
}

html.theme-impact .blog-share-icon {
  line-height: 1;
}

html.theme-impact .blog-post-related h2 {
  margin: 0 0 12px;
  font-family: var(--imp-display);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--imp-ink);
  opacity: 1;
}

html.theme-impact .blog-post-related ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

html.theme-impact .blog-post-related li {
  border-top: 1px solid rgba(0, 0, 0, 0.12);
}

html.theme-impact .blog-post-related li:last-child {
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

html.theme-impact .blog-post-related a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 8px 2px;
  color: inherit;
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 400;
  line-height: 1.4;
  transition: color 0.2s ease, opacity 0.2s ease;
}

html.theme-impact .blog-post-related a::after {
  content: "→";
  flex: none;
  font-weight: 400;
  opacity: 0.45;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

html.theme-impact .blog-post-related a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

html.theme-impact .blog-post-related a:hover::after {
  transform: translateX(4px);
  opacity: 1;
}

/* 区切り線〜前後ナビ: .blog-post の gap を相殺し、関連ノートと同じ左右マージン */
html.theme-impact .work-case-nav.blog-post-pager {
  margin-top: calc(-1 * clamp(32px, 5vw, 48px) + clamp(32px, 4.5vw, 44px));
  margin-left: var(--blog-related-gutter);
  margin-right: var(--blog-related-gutter);
}

html.theme-impact .work-case-nav.blog-post-pager .work-case-nav-link {
  padding-top: 10px;
  padding-bottom: 10px;
}

/* ブログトップ: お知らせ横スライダー */
html.theme-impact .blog-news-slider {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
}

html.theme-impact .blog-news-slider-track {
  display: flex;
  gap: clamp(12px, 2vw, 18px);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  padding: 2px 2px 10px;
  scrollbar-width: none;
}

html.theme-impact .blog-news-slider-track::-webkit-scrollbar {
  display: none;
}

html.theme-impact .blog-news-slider-item {
  flex: 0 0 min(72%, 260px);
  scroll-snap-align: start;
  min-width: 0;
}

html.theme-impact .blog-news-slider-item .blog-article-card,
html.theme-impact .blog-news-slider-item .blog-note-card {
  height: 100%;
}

html.theme-impact .blog-news-slider-btn {
  flex: none;
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 2px solid var(--imp-line);
  background: var(--imp-bg);
  color: var(--imp-ink);
  font-family: var(--imp-display);
  font-size: 1rem;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, opacity 0.18s ease;
}

html.theme-impact .blog-news-slider-btn:hover:not(:disabled) {
  background: var(--imp-band-lime);
  border-color: var(--imp-ink);
}

html.theme-impact .blog-news-slider-btn:disabled {
  opacity: 0.28;
  cursor: default;
}

/* モバイル: 横スクロールをやめ、縦リストで読みやすくする */
@media (max-width: 639px) {
  html.theme-impact .blog-news-slider {
    display: block;
  }

  html.theme-impact .blog-news-slider-btn {
    display: none;
  }

  html.theme-impact .blog-news-slider-track {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    overflow: visible;
    scroll-snap-type: none;
    padding: 0;
  }

  html.theme-impact .blog-news-slider-item {
    flex: none;
    width: 100%;
  }

  /* 先頭3件まで。あとは「お知らせ一覧を見る」へ */
  html.theme-impact .blog-news-slider-item:nth-child(n + 4) {
    display: none;
  }
}

@media (min-width: 640px) {
  html.theme-impact .blog-news-slider-item {
    flex-basis: min(48%, 240px);
  }
}

@media (min-width: 900px) {
  html.theme-impact .blog-news-slider-item {
    flex-basis: min(38%, 220px);
  }
}

@media (min-width: 520px) {
  html.theme-impact body.page-blog .blog-articles-grid,
  html.theme-impact body.page-blog .blog-notes-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }
}

@media (min-width: 768px) {
  html.theme-impact body.page-blog .blog-articles-grid,
  html.theme-impact body.page-blog .blog-notes-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  /* サイドバー併用の中間幅ではお知らせは2列、ナレッジは3列 */
  html.theme-impact body.page-blog-index .blog-articles-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  html.theme-impact body.page-blog-index .blog-notes-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  html.theme-impact body.page-blog .blog-articles-grid,
  html.theme-impact body.page-blog .blog-notes-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  html.theme-impact body.page-blog-index .blog-articles-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  html.theme-impact body.page-blog-index .blog-notes-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* 一覧: 十分広いとき — お知らせ3列 / ナレッジ4列 */
@media (min-width: 1480px) {
  html.theme-impact body.page-blog-index .blog-articles-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  html.theme-impact body.page-blog-index .blog-notes-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* 一覧ページの中央カラム内の余白調整 */
html.theme-impact body.page-blog-index .blog-hub {
  gap: clamp(48px, 6vw, 72px);
}