/*
Command Lab Tech - ブログ固有コンポーネント
仕様: ../../../../../../docs/DESIGN_REGULATION.md
トークン/共通コンポーネント（.clab-btn, .clab-card, .clab-input, .clab-kbd, .clab-badge,
.clab-terminal, .clab-theme-fab など）は /design-tokens.css を参照し、ここでは再定義しない。
このファイルは「ブログに固有のレイアウト・記事タイポグラフィ」と「旧SWELLコンテンツの互換CSS」のみを持つ。
*/

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

body.clab-tech {
  margin: 0;
  background-color: var(--clab-bg-canvas);
  color: var(--clab-text-primary);
  font-family: var(--clab-font-sans);
  line-height: var(--clab-leading-normal);
}

a {
  color: var(--clab-secondary);
}

.clab-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ==========================================================
   ヘッダー
   デザインレギュレーション9章の例外規定（ブランド訴求の強いセクションは
   ユーザーのライト/ダーク選択に関わらず常にダークで固定してよい）を適用し、
   グローバルナビは常時ダーク配色にする。--clab-gray-* はテーマ非依存の
   プリミティブなので、セマンティックトークン（--clab-bg-surface等）ではなく
   これを直接使うことで、ページ全体がライトモードでも黒背景を維持する。
   ========================================================== */
.clab-header {
  position: sticky;
  top: 0;
  z-index: var(--clab-z-header);
  background-color: var(--clab-gray-950);
  border-bottom: 1px solid var(--clab-gray-700);
}

.clab-header__inner {
  max-width: var(--clab-container-max);
  margin: 0 auto;
  padding: var(--clab-space-3) var(--clab-space-5);
  display: flex;
  align-items: center;
  gap: var(--clab-space-5);
}

.clab-header__brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  white-space: nowrap;
}
.clab-header__brand-logo {
  display: block;
  width: auto;
  height: 28px;
}

.clab-header__nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 36px;
  height: 36px;
  margin-left: auto;
  border: 1px solid var(--clab-gray-700);
  border-radius: var(--clab-radius-sm);
  background: var(--clab-gray-900);
  cursor: pointer;
}
.clab-header__nav-toggle-bar {
  display: block;
  height: 2px;
  margin: 0 7px;
  background-color: var(--clab-gray-100);
  border-radius: 2px;
}

.clab-header__nav {
  display: flex;
  align-items: center;
  gap: var(--clab-space-5);
  margin-left: auto;
}

.clab-header__nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--clab-space-2);
  margin: 0;
}
.clab-header__nav-list li {
  display: inline-flex;
}
.clab-header__nav-home {
  padding-right: var(--clab-space-3);
  margin-right: var(--clab-space-1);
  border-right: 1px solid var(--clab-gray-700);
}
.clab-header__nav-list a {
  display: inline-block;
  padding: var(--clab-space-1) var(--clab-space-3);
  border-radius: var(--clab-radius-pill);
  font-size: var(--clab-text-sm);
  font-weight: var(--clab-weight-bold);
  color: var(--clab-gray-300);
  text-decoration: none;
  border: 1px solid transparent;
  transition: border-color var(--clab-duration-fast) var(--clab-ease-out);
}
.clab-header__nav-list a:hover,
.clab-header__nav-list a:focus-visible {
  border-color: var(--clab-gray-500);
}
.clab-header__nav-home a {
  color: var(--clab-gray-400);
}
.clab-header__nav-home a:hover,
.clab-header__nav-home a:focus-visible {
  color: var(--clab-cyan-400);
  border-color: transparent;
}

.clab-header__search-input {
  width: 200px;
  max-width: 40vw;
  background-color: var(--clab-gray-800);
  border-color: var(--clab-gray-600);
  color: var(--clab-gray-100);
}
.clab-header__search-input::placeholder {
  color: var(--clab-gray-400);
}

@media (max-width: 768px) {
  .clab-header__nav-toggle { display: inline-flex; }
  .clab-header__nav {
    position: absolute;
    inset: 100% 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--clab-gray-950);
    border-bottom: 1px solid var(--clab-gray-700);
    padding: var(--clab-space-4) var(--clab-space-5);
    display: none;
  }
  .clab-header__nav.is-open { display: flex; }
  .clab-header__search-input { width: 100%; max-width: none; }
}

/* ==========================================================
   パンくず
   ========================================================== */
.clab-breadcrumb {
  max-width: var(--clab-container-max);
  margin: 0 auto;
  padding: var(--clab-space-3) var(--clab-space-5) 0;
}
.clab-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--clab-space-1);
  margin: 0;
  font-size: var(--clab-text-xs);
  color: var(--clab-text-muted);
}
.clab-breadcrumb__item:not(:last-child)::after {
  content: "/";
  margin-left: var(--clab-space-1);
  color: var(--clab-border-strong);
}
.clab-breadcrumb__item a { color: var(--clab-text-muted); text-decoration: none; }
.clab-breadcrumb__item a:hover { color: var(--clab-secondary); }
.clab-breadcrumb__item span[aria-current] { color: var(--clab-text-secondary); }

/* ==========================================================
   ヒーロー（トップページ）
   ========================================================== */
.clab-hero {
  border-bottom: 1px solid var(--clab-border);
  background-color: var(--clab-bg-surface-alt);
}
.clab-hero__inner {
  max-width: var(--clab-container-max);
  margin: 0 auto;
  padding: var(--clab-space-8) var(--clab-space-5);
}
.clab-hero__kicker {
  font-family: var(--clab-font-mono);
  font-size: var(--clab-text-sm);
  color: var(--clab-primary);
  margin: 0 0 var(--clab-space-2);
}
.clab-hero__title {
  font-size: var(--clab-text-4xl);
  font-weight: var(--clab-weight-black);
  margin: 0 0 var(--clab-space-3);
}
.clab-hero__desc {
  font-size: var(--clab-text-lg);
  color: var(--clab-text-secondary);
  margin: 0;
  max-width: 60ch;
}

/* ==========================================================
   レイアウト（本文 + サイドバー）
   ========================================================== */
.clab-main { flex: 1; }

.clab-layout {
  max-width: var(--clab-container-max);
  margin: 0 auto;
  padding: var(--clab-space-6) var(--clab-space-5) var(--clab-space-9);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: var(--clab-space-7);
  align-items: start;
}
@media (max-width: 1024px) {
  .clab-layout { grid-template-columns: 1fr; }
}

.clab-empty {
  color: var(--clab-text-muted);
}

/* ==========================================================
   記事カード / グリッド
   ========================================================== */
.clab-post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--clab-space-5);
}

.clab-post-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.clab-post-card__thumb {
  display: block;
  aspect-ratio: 16 / 9;
  background-color: var(--clab-bg-surface-alt);
  overflow: hidden;
}
.clab-post-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.clab-post-card__thumb-fallback {
  display: flex; align-items: center; justify-content: center;
  height: 100%;
}
.clab-post-card__body {
  padding: var(--clab-space-4);
  display: flex;
  flex-direction: column;
  gap: var(--clab-space-2);
  flex: 1;
}
.clab-post-card__title { margin: 0; font-size: var(--clab-text-lg); line-height: var(--clab-leading-tight); }
.clab-post-card__title a { color: var(--clab-text-primary); text-decoration: none; }
.clab-post-card__title a:hover { color: var(--clab-secondary); }
.clab-post-card__excerpt {
  margin: 0;
  font-size: var(--clab-text-sm);
  color: var(--clab-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.clab-post-card__meta {
  margin-top: auto;
  display: flex;
  gap: var(--clab-space-3);
  font-family: var(--clab-font-mono);
  font-size: var(--clab-text-xs);
  color: var(--clab-text-muted);
}

/* ==========================================================
   記事詳細（.clab-article）
   ========================================================== */
.clab-article__head { margin-bottom: var(--clab-space-5); }
.clab-article__cat { margin-bottom: var(--clab-space-3); }
.clab-article__title {
  font-size: var(--clab-text-3xl);
  line-height: var(--clab-leading-tight);
  margin: 0 0 var(--clab-space-3);
}
.clab-article__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--clab-space-4);
  font-family: var(--clab-font-mono);
  font-size: var(--clab-text-xs);
  color: var(--clab-text-muted);
}
.clab-article__thumb {
  margin: var(--clab-space-5) 0;
  border-radius: var(--clab-radius-md);
  overflow: hidden;
}

/* 本文タイポグラフィ: 日本語可読性優先、モノスペースは使わない */
.clab-article__body {
  font-size: var(--clab-text-base);
  line-height: var(--clab-leading-loose);
}
.clab-article__body :is(h2, h3, h4) {
  font-weight: var(--clab-weight-bold);
  line-height: var(--clab-leading-tight);
  margin: var(--clab-space-7) 0 var(--clab-space-4);
  scroll-margin-top: calc(var(--clab-space-7) + 60px);
}
.clab-article__body h2 {
  font-size: var(--clab-text-2xl);
  padding-bottom: var(--clab-space-2);
  border-bottom: 2px solid var(--clab-border);
}
.clab-article__body h3 { font-size: var(--clab-text-xl); }
.clab-article__body h4 { font-size: var(--clab-text-lg); }
.clab-article__body p { margin: 0 0 var(--clab-space-5); }
.clab-article__body ul,
.clab-article__body ol { margin: 0 0 var(--clab-space-5); padding-left: 1.4em; }
.clab-article__body li { margin-bottom: var(--clab-space-2); }
.clab-article__body a { color: var(--clab-secondary); }
.clab-article__body img,
.clab-article__body figure { border-radius: var(--clab-radius-md); }
.clab-article__body figcaption {
  font-size: var(--clab-text-sm);
  color: var(--clab-text-muted);
  text-align: center;
  margin-top: var(--clab-space-2);
}
.clab-article__body blockquote {
  margin: 0 0 var(--clab-space-5);
  padding: var(--clab-space-4) var(--clab-space-5);
  border-left: 3px solid var(--clab-secondary);
  background-color: var(--clab-bg-surface-alt);
  border-radius: 0 var(--clab-radius-sm) var(--clab-radius-sm) 0;
  color: var(--clab-text-secondary);
}
.clab-article__body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 var(--clab-space-5);
  font-size: var(--clab-text-sm);
}
.clab-article__body th,
.clab-article__body td {
  border: 1px solid var(--clab-border);
  padding: var(--clab-space-2) var(--clab-space-3);
  text-align: left;
}
.clab-article__body th { background-color: var(--clab-bg-surface-alt); }
.clab-article__body pre {
  font-family: var(--clab-font-mono);
  font-size: var(--clab-text-sm);
  background-color: var(--clab-gray-950);
  color: var(--clab-green-500);
  padding: var(--clab-space-4);
  border-radius: var(--clab-radius-md);
  overflow-x: auto;
  margin: 0 0 var(--clab-space-5);
}
.clab-article__body code {
  font-family: var(--clab-font-mono);
  font-size: 0.9em;
  background-color: var(--clab-bg-surface-alt);
  padding: 0.1em 0.4em;
  border-radius: 4px;
}
.clab-article__body pre code { background: none; padding: 0; }

.clab-article__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--clab-space-2);
  margin: var(--clab-space-7) 0;
}

/* ==========================================================
   目次（TOC）
   ========================================================== */
.clab-toc {
  margin: var(--clab-space-6) 0;
  padding: var(--clab-space-5);
  background-color: var(--clab-bg-surface);
  border: 1px solid var(--clab-border);
  border-radius: var(--clab-radius-md);
}
.clab-toc__title {
  margin: 0 0 var(--clab-space-3);
  font-family: var(--clab-font-mono);
  font-size: var(--clab-text-sm);
  font-weight: var(--clab-weight-bold);
  color: var(--clab-text-secondary);
}
.clab-toc__title::before { content: "$ "; color: var(--clab-primary); }
.clab-toc__list { margin: 0; padding: 0; list-style: none; }
.clab-toc__item { margin-bottom: var(--clab-space-2); font-size: var(--clab-text-sm); }
.clab-toc__item a { color: var(--clab-text-secondary); text-decoration: none; }
.clab-toc__item a:hover { color: var(--clab-secondary); }
.clab-toc__item--h3 { margin-left: var(--clab-space-4); }

/* ==========================================================
   リンクカード（loos/blog-parts, loos/post-link 互換）
   ========================================================== */
.clab-richlink {
  display: flex;
  align-items: stretch;
  gap: var(--clab-space-4);
  margin: var(--clab-space-5) 0;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--clab-duration-fast) var(--clab-ease-out);
}
.clab-richlink:hover { border-color: var(--clab-secondary); }
.clab-richlink__thumb {
  flex-shrink: 0;
  width: 120px;
  border-radius: var(--clab-radius-sm);
  overflow: hidden;
}
.clab-richlink__thumb img { width: 100%; height: 100%; object-fit: cover; }
.clab-richlink__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--clab-space-1);
  min-width: 0;
}
.clab-richlink__title {
  font-weight: var(--clab-weight-bold);
  color: var(--clab-text-primary);
}
.clab-richlink__excerpt {
  font-size: var(--clab-text-sm);
  color: var(--clab-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.clab-richlink__url {
  font-family: var(--clab-font-mono);
  font-size: var(--clab-text-xs);
  color: var(--clab-secondary);
}
.clab-richlink__url::before { content: "↗ "; }

/* ==========================================================
   旧SWELL(LOOS)ブロック 互換CSS
   ========================================================== */
/* 見出しブロックスタイル: is-style-icon_pen / is-style-icon_book */
.clab-article__body h2.is-style-icon_pen::before,
.clab-article__body h3.is-style-icon_pen::before,
.clab-article__body h2.is-style-icon_book::before,
.clab-article__body h3.is-style-icon_book::before {
  font-family: var(--clab-font-mono);
  color: var(--clab-primary);
  margin-right: var(--clab-space-2);
}
.clab-article__body h2.is-style-icon_pen::before,
.clab-article__body h3.is-style-icon_pen::before { content: "✎"; }
.clab-article__body h2.is-style-icon_book::before,
.clab-article__body h3.is-style-icon_book::before { content: "📖"; }

/* 段落ブロックスタイル: is-style-balloon_box（ノートボックス） */
.clab-article__body p.is-style-balloon_box {
  padding: var(--clab-space-4) var(--clab-space-5);
  background-color: var(--clab-bg-surface-alt);
  border: 1px solid var(--clab-border);
  border-radius: var(--clab-radius-md);
}

/* FAQ（swell-block-faq）: Q/Aラベル付きの簡易アコーディオン風表示 */
.clab-article__body .swell-block-faq {
  margin: 0 0 var(--clab-space-5);
  padding: 0;
}
.clab-article__body .swell-block-faq__item {
  margin-bottom: var(--clab-space-3);
  border: 1px solid var(--clab-border);
  border-radius: var(--clab-radius-md);
  overflow: hidden;
}
.clab-article__body .swell-block-faq .faq_q,
.clab-article__body .swell-block-faq .faq_a {
  margin: 0;
  padding: var(--clab-space-3) var(--clab-space-4);
}
.clab-article__body .swell-block-faq .faq_q {
  font-weight: var(--clab-weight-bold);
  background-color: var(--clab-bg-surface-alt);
  position: relative;
  padding-left: var(--clab-space-8);
}
.clab-article__body .swell-block-faq .faq_q::before {
  content: "Q";
  position: absolute;
  left: var(--clab-space-3);
  font-family: var(--clab-font-mono);
  font-weight: var(--clab-weight-bold);
  color: var(--clab-primary);
}
.clab-article__body .swell-block-faq .faq_a {
  position: relative;
  padding-left: var(--clab-space-8);
  color: var(--clab-text-secondary);
}
.clab-article__body .swell-block-faq .faq_a::before {
  content: "A";
  position: absolute;
  left: var(--clab-space-3);
  font-family: var(--clab-font-mono);
  font-weight: var(--clab-weight-bold);
  color: var(--clab-secondary);
}

/* ==========================================================
   ページネーション
   ========================================================== */
.clab-pagination {
  display: flex;
  flex-wrap: wrap;
  gap: var(--clab-space-2);
  margin-top: var(--clab-space-7);
}
.clab-pagination__item > * {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.2em;
  padding: var(--clab-space-2) var(--clab-space-3);
  border-radius: var(--clab-radius-sm);
  border: 1px solid var(--clab-border);
  color: var(--clab-text-secondary);
  text-decoration: none;
  font-family: var(--clab-font-mono);
  font-size: var(--clab-text-sm);
}
.clab-pagination__item .current {
  background-color: var(--clab-primary);
  border-color: var(--clab-primary);
  color: var(--clab-text-on-accent);
}
.clab-pagination__item a:hover { border-color: var(--clab-secondary); color: var(--clab-secondary); }

/* ==========================================================
   前後記事ナビ / 関連記事
   ========================================================== */
.clab-post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--clab-space-4);
  margin: var(--clab-space-7) 0;
}
.clab-post-nav__link {
  display: block;
  padding: var(--clab-space-4);
  border: 1px solid var(--clab-border);
  border-radius: var(--clab-radius-md);
  text-decoration: none;
  color: var(--clab-text-primary);
}
.clab-post-nav__link:hover { border-color: var(--clab-secondary); }
.clab-post-nav__link--next { text-align: right; }
.clab-post-nav__dir {
  display: block;
  font-family: var(--clab-font-mono);
  font-size: var(--clab-text-xs);
  color: var(--clab-text-muted);
  margin-bottom: var(--clab-space-1);
}
@media (max-width: 600px) {
  .clab-post-nav { grid-template-columns: 1fr; }
}

.clab-related { margin-top: var(--clab-space-8); }
.clab-related__title {
  font-size: var(--clab-text-2xl);
  border-bottom: 1px solid var(--clab-border);
  padding-bottom: var(--clab-space-3);
  margin-bottom: var(--clab-space-5);
}

/* ==========================================================
   サイドバー
   ========================================================== */
.clab-sidebar { display: flex; flex-direction: column; gap: var(--clab-space-5); }
.clab-widget__title {
  margin: 0 0 var(--clab-space-3);
  font-size: var(--clab-text-base);
  font-weight: var(--clab-weight-bold);
}
.clab-widget__cat-list,
.clab-widget__recent-list { margin: 0; padding: 0; list-style: none; }
.clab-widget__cat-list li,
.clab-widget__recent-list li {
  padding: var(--clab-space-2) 0;
  border-bottom: 1px dashed var(--clab-border);
}
.clab-widget__cat-list li:last-child,
.clab-widget__recent-list li:last-child { border-bottom: none; }
.clab-widget__cat-list a {
  display: flex;
  justify-content: space-between;
  color: var(--clab-text-secondary);
  text-decoration: none;
  font-weight: var(--clab-weight-bold);
}
.clab-widget__cat-list a:hover {
  color: var(--clab-secondary);
}
.clab-widget__cat-count {
  font-family: var(--clab-font-mono);
  color: var(--clab-text-muted);
  font-weight: var(--clab-weight-regular);
}
.clab-widget__recent-list a { display: block; color: var(--clab-text-primary); text-decoration: none; font-size: var(--clab-text-sm); }
.clab-widget__recent-list time {
  display: block;
  font-family: var(--clab-font-mono);
  font-size: var(--clab-text-xs);
  color: var(--clab-text-muted);
  margin-top: 2px;
}

/* ==========================================================
   検索フォーム（共通）
   ========================================================== */
.clab-searchform { display: flex; gap: var(--clab-space-2); }
.clab-searchform__input { flex: 1; min-width: 0; }
.clab-searchform__submit {
  flex-shrink: 0;
  white-space: nowrap;
}

/* ==========================================================
   アーカイブ見出し
   ========================================================== */
.clab-archive-head { margin-bottom: var(--clab-space-6); }
.clab-archive-head__title {
  font-size: var(--clab-text-3xl);
  margin: 0 0 var(--clab-space-2);
  color: var(--clab-app-accent, var(--clab-text-primary));
}
.clab-archive-head__desc { color: var(--clab-text-secondary); }

/* ==========================================================
   404
   ========================================================== */
.clab-404 { text-align: center; padding: var(--clab-space-8) 0; }
.clab-404 .clab-terminal { text-align: left; max-width: 480px; margin: 0 auto var(--clab-space-6); }
.clab-404__title { font-size: var(--clab-text-2xl); margin: 0 0 var(--clab-space-3); }
.clab-404__desc { color: var(--clab-text-secondary); margin: 0 0 var(--clab-space-5); }
.clab-404 .clab-searchform { max-width: 420px; margin: 0 auto var(--clab-space-5); }
.clab-404__home { margin-top: var(--clab-space-4); }

/* ==========================================================
   コメント
   ========================================================== */
.clab-comments { margin-top: var(--clab-space-8); }
.clab-comments__title { font-size: var(--clab-text-2xl); margin-bottom: var(--clab-space-5); }
.clab-comments__list { list-style: none; margin: 0 0 var(--clab-space-6); padding: 0; }
.clab-comments__list .comment-body {
  padding: var(--clab-space-4);
  margin-bottom: var(--clab-space-3);
  background-color: var(--clab-bg-surface);
  border: 1px solid var(--clab-border);
  border-radius: var(--clab-radius-md);
}
.clab-comments__list .children { list-style: none; padding-left: var(--clab-space-6); }
.clab-comment-form p { margin: 0 0 var(--clab-space-3); }
.clab-comment-form textarea { width: 100%; resize: vertical; }
.clab-comment-form__title { font-size: var(--clab-text-xl); margin-bottom: var(--clab-space-4); }

/* ==========================================================
   フッター
   ========================================================== */
.clab-footer {
  border-top: 1px solid var(--clab-border);
  background-color: var(--clab-bg-surface);
  margin-top: var(--clab-space-9);
}
.clab-footer__inner {
  max-width: var(--clab-container-max);
  margin: 0 auto;
  padding: var(--clab-space-7) var(--clab-space-5);
  text-align: center;
}
.clab-footer__brand { font-weight: var(--clab-weight-black); color: var(--clab-text-primary); text-decoration: none; }
.clab-footer__desc { color: var(--clab-text-secondary); font-size: var(--clab-text-sm); margin: var(--clab-space-2) 0; }
.clab-footer__nav { display: flex; justify-content: center; gap: var(--clab-space-4); margin: var(--clab-space-3) 0; font-size: var(--clab-text-sm); }
.clab-footer__nav a { color: var(--clab-secondary); text-decoration: none; }
.clab-footer__copy { color: var(--clab-text-muted); font-size: var(--clab-text-xs); margin: 0; }