/* souga's report base styles */
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; display: block; }

/* ---------- 共通ユーティリティ ---------- */
.container { max-width: var(--container); margin: 0 auto; padding: 22px 20px 80px; }
.container--narrow { max-width: 820px; }

.mono-label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em;
  text-transform: uppercase; color: var(--c-text-weak);
}
.panel {
  background: var(--c-panel); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 24px;
}
.panel--rail { padding: 18px; }
.panel__label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em;
  text-transform: uppercase; color: var(--c-text-weak); margin-bottom: 6px;
}
.panel__label--accent { color: var(--c-accent); }

.tile, .card { transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition); }
@media (prefers-reduced-motion: reduce) {
  .tile, .card { transition: none !important; }
  .livedot, .flicker { animation: none !important; }
}

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  border-bottom: 1px solid var(--c-border);
  background: rgba(12, 12, 10, .72);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.site-header__inner {
  max-width: var(--container-wide); margin: 0 auto; padding: 0 20px; height: 64px;
  display: flex; align-items: center; justify-content: space-between;
}
.site-logo { display: flex; align-items: baseline; gap: 11px; text-decoration: none; }
.site-logo__name {
  font-family: var(--font-heading); font-weight: 800; font-size: 21px;
  letter-spacing: -.02em; color: var(--c-text);
}
.site-logo__sub {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em;
  text-transform: uppercase; color: var(--c-text-weak);
}
.desktop-nav { display: flex; align-items: center; gap: 28px; }
.nav-link {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--c-text-weak); text-decoration: none;
}
.nav-link.is-active { color: var(--c-accent); }

.menu-btn {
  display: none; align-items: center; justify-content: center; flex-direction: column; gap: 5px;
  width: 42px; height: 42px; background: transparent;
  border: 1px solid rgba(255, 255, 255, .16); border-radius: 11px; cursor: pointer;
}
.menu-btn span { display: block; width: 18px; height: 1.5px; background: var(--c-text); }

/* ---------- モバイルドロワー ---------- */
.drawer__overlay {
  position: fixed; inset: 0; z-index: 50; background: rgba(8, 8, 7, .6);
  backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px);
}
.drawer__panel {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 51; width: 78%; max-width: 320px;
  background: var(--c-drawer); border-left: 1px solid rgba(255, 255, 255, .12);
  padding: 22px; display: flex; flex-direction: column; gap: 4px;
}
.drawer__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.drawer__label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em;
  text-transform: uppercase; color: var(--c-text-weak);
}
.drawer__close {
  width: 38px; height: 38px; background: transparent; border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 10px; color: var(--c-text); font-size: 18px; cursor: pointer; line-height: 1;
}
.drawer__link {
  font-family: var(--font-heading); font-weight: 600; font-size: 24px; letter-spacing: -.01em;
  color: var(--c-text); text-decoration: none; padding: 13px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.drawer__link:last-child { border-bottom: none; }
.drawer__link.is-active { color: var(--c-accent); }

/* ---------- パンくず ---------- */
.breadcrumb {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em;
  color: var(--c-text-dim); margin-bottom: 18px;
}
.breadcrumb a { color: var(--c-text-weak); text-decoration: none; }
.breadcrumb__sep { color: var(--c-text-faint); }
.breadcrumb__current { color: var(--c-text-dim); }

/* ---------- トップ 2カラム ---------- */
.front-grid {
  width: 100%; max-width: var(--container-wide); margin: 0 auto;
  padding: 16px 20px 40px;
  display: grid; grid-template-columns: 4fr 6fr; gap: var(--gap);
  align-items: start;
}
.front-col { display: flex; flex-direction: column; gap: var(--gap); }

/* About */
.about__lead { font-weight: 500; font-size: 17px; line-height: 1.75; color: var(--c-text); margin: 16px 0 0; text-wrap: pretty; }
.about__sub { font-size: 13px; line-height: 1.7; color: var(--c-text-weak); margin: 14px 0 0; }

/* Live clock */
.clock__head { display: flex; align-items: center; justify-content: space-between; }
.clock__place { font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em; color: var(--c-text-weak); }
.clock__time {
  font-family: var(--font-mono); font-weight: 500; font-size: 48px; line-height: 1;
  letter-spacing: .01em; margin-top: 16px; font-variant-numeric: tabular-nums;
}
.clock__date { font-family: var(--font-mono); font-size: 12px; letter-spacing: .16em; color: var(--c-text-weak); margin-top: 10px; }

/* Games索引 */
.games-index__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.games-index__total { font-family: var(--font-mono); font-size: 10px; color: #4f4d46; }
.games-index__row {
  display: flex; align-items: center; gap: 13px; padding: 13px 0;
  border-bottom: 1px solid var(--c-border-soft); text-decoration: none;
  transition: padding var(--transition);
}
.games-index__row:last-child { border-bottom: none; }
.games-index__row:hover { padding-left: 6px; }
.games-index__swatch { width: 16px; height: 16px; border-radius: 5px; flex: none; }
.games-index__name { font-weight: 500; font-size: 15px; color: var(--c-text); flex: 1; }
.games-index__count { font-family: var(--font-mono); font-size: 11px; color: var(--c-text-weak); }

/* Streamカード(反転) */
.stream-card {
  background: var(--c-text); border: 1px solid var(--c-text); border-radius: var(--radius);
  padding: 24px; text-decoration: none; display: block;
}
.stream-card:hover { transform: translateY(-3px); }
.stream-card--rail { padding: 18px; }
.stream-card__head { display: flex; align-items: center; gap: 9px; }
.livedot {
  width: 9px; height: 9px; border-radius: 50%; background: var(--c-live); flex: none;
  animation: livepulse 1.6s ease-in-out infinite;
}
.livedot--static { width: 8px; height: 8px; animation: none; }
.stream-card__label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em;
  text-transform: uppercase; color: var(--c-bg);
}
.stream-card__title {
  font-family: var(--font-heading); font-weight: 700; font-size: 22px;
  letter-spacing: -.01em; color: var(--c-bg); margin-top: 16px;
}
.stream-card__title--sm { font-size: 17px; margin-top: 12px; }
.stream-card__sub { font-size: 13px; color: #5a5852; margin-top: 6px; }
@keyframes livepulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .35; transform: scale(.82); }
}

/* ---------- HERO(トップFeatured) ---------- */
.hero {
  position: relative; display: block; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--c-border); min-height: 380px; text-decoration: none;
}
.hero:hover { border-color: rgba(55, 224, 196, .4); }
.hero__img, .article-hero__img, .game-banner__img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.hero__noart {
  position: absolute; top: 16px; left: 18px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em; color: rgba(255, 255, 255, .25);
}
.hero__shade {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(12, 12, 10, .94) 0%, rgba(12, 12, 10, .6) 38%, rgba(12, 12, 10, 0) 70%);
}
.hero__body { position: absolute; left: 0; right: 0; bottom: 0; padding: 28px; }
.hero__badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--c-accent); border: 1px solid var(--c-accent-border); border-radius: 20px; padding: 5px 13px;
}
.hero__badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--c-accent); }
.hero__badge-sw { width: 11px; height: 11px; border-radius: 4px; }
.hero__title {
  font-family: var(--font-body); font-weight: 700; font-size: 32px; line-height: 1.3;
  letter-spacing: .01em; color: var(--c-text); margin: 16px 0 0; text-wrap: pretty;
}
.hero__meta { display: flex; align-items: center; gap: 16px; margin-top: 14px; }
.hero__meta span { font-family: var(--font-mono); font-size: 11px; color: var(--c-text-weak); }

/* ---------- フィルタ / チップ ---------- */
.filter { display: flex; flex-direction: column; gap: 12px; }
.filter__head { display: flex; align-items: baseline; justify-content: space-between; }
.filter__head .panel__label { margin-bottom: 0; }
.filter__count { font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; color: var(--c-text-dim); }
.filter__chips { display: flex; flex-wrap: wrap; gap: 8px; }
.filter__chips--news { margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--c-border); }

.chip {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
  border-radius: 20px; padding: 6px 14px; cursor: pointer; text-decoration: none;
  background: transparent; color: var(--c-text-weak); border: 1px solid var(--c-border-strong);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.chip:hover { color: var(--c-text); border-color: rgba(255, 255, 255, .3); }
.chip.is-active { background: var(--c-accent); color: var(--c-bg); border-color: var(--c-accent); }
.chip__sw { width: 9px; height: 9px; border-radius: 3px; flex: none; }
.chip--cat-info .chip__sw { background: var(--c-cat-info); }
.chip--cat-update .chip__sw { background: var(--c-cat-update); }
.chip--cat-game .chip__sw { background: var(--c-cat-game); }

/* ---------- カード / 一覧 ---------- */
.masonry { column-count: 2; column-gap: var(--gap); }
.arch-grid { column-count: 3; column-gap: var(--gap); margin-top: 22px; }

.log-card {
  break-inside: avoid; margin-bottom: var(--gap); display: block;
  background: var(--c-panel); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 10px; text-decoration: none;
}
.log-card:hover { transform: translateY(-4px); background: var(--c-panel-hover); border-color: rgba(255, 255, 255, .22); }
.card__kv { border-radius: var(--radius-sm); position: relative; overflow: hidden; }
.card__kv img { width: 100%; height: auto; }
.card__kv[style*="aspect-ratio"] img { height: 100%; object-fit: cover; }
.card__noart {
  position: absolute; bottom: 7px; right: 9px;
  font-family: var(--font-mono); font-size: 7px; letter-spacing: .12em; color: rgba(255, 255, 255, .18);
}
.log-card__body { padding: 12px 6px 6px; }
.log-card__meta { display: flex; justify-content: space-between; align-items: center; }
.log-card__game { font-family: var(--font-mono); font-size: 9px; letter-spacing: .12em; color: var(--c-accent); }
.log-card__date { font-family: var(--font-mono); font-size: 9px; color: var(--c-text-weak); }
.log-card__title { font-weight: 700; font-size: 15px; line-height: 1.5; color: var(--c-text); margin: 10px 0 0; text-wrap: pretty; }
.log-card__title--sm { font-size: 14px; margin-top: 9px; }
.log-card__desc { font-size: 12px; line-height: 1.6; color: var(--c-text-weak); margin: 7px 0 0; }

.empty-note {
  text-align: center; padding: 40px 0;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; color: var(--c-text-dim);
}
.loadmore-wrap { display: flex; justify-content: center; padding: 8px 0 4px; }
.loadmore {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--c-text-weak); border: 1px solid var(--c-border-strong); border-radius: 24px;
  padding: 11px 26px; text-decoration: none;
}
.loadmore:hover { color: var(--c-accent); border-color: var(--c-accent-border); }

/* ---------- ページ見出し ---------- */
.page-head {
  display: flex; align-items: baseline; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; margin-bottom: 28px;
}
.page-head__title {
  font-family: var(--font-heading); font-weight: 800; font-size: 56px;
  letter-spacing: -.03em; margin: 0; line-height: 1;
}
.page-head__count {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--c-text-dim);
}

/* ---------- ゲームアーカイブ ---------- */
.game-banner {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--c-border); min-height: 260px;
}
.game-banner__noart {
  position: absolute; top: 16px; left: 18px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em; color: rgba(255, 255, 255, .25);
}
.game-banner__shade {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(12, 12, 10, .95) 0%, rgba(12, 12, 10, .5) 50%, rgba(12, 12, 10, 0) 78%);
}
.game-banner__body {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 30px;
  display: flex; align-items: flex-end; gap: 18px;
}
.game-banner__swatch { width: 60px; height: 60px; border-radius: var(--radius-sm); flex: none; }
.game-banner__title {
  font-family: var(--font-heading); font-weight: 800; font-size: 40px;
  letter-spacing: -.02em; margin: 0;
}
.game-banner__meta { display: flex; gap: 18px; align-items: center; margin-top: 10px; }
.game-banner__count { font-family: var(--font-mono); font-size: 11px; color: var(--c-text); }
.game-banner__tags { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; color: var(--c-text-weak); }
.game-desc { font-size: 15px; line-height: 1.85; color: var(--c-text-weak); margin: 22px 0 0; max-width: 720px; text-wrap: pretty; }

.sort-bar {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 26px; padding-bottom: 14px; border-bottom: 1px solid var(--c-border);
}
.sort-bar__count {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--c-text-weak);
}
.sort-bar__btns { display: flex; gap: 8px; }

/* ---------- 記事ページ ---------- */
.article-hero {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--c-border); min-height: 420px;
}
.article-hero__noart {
  position: absolute; top: 16px; left: 18px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em; color: rgba(255, 255, 255, .25);
}
.article-hero__shade {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(12, 12, 10, .95) 0%, rgba(12, 12, 10, .55) 42%, rgba(12, 12, 10, 0) 72%);
}
.article-hero__body { position: absolute; left: 0; right: 0; bottom: 0; padding: 34px; }
.article-hero__title {
  font-weight: 700; font-size: 38px; line-height: 1.32; letter-spacing: .01em;
  margin: 18px 0 0; max-width: 760px; text-wrap: pretty;
}
.article-metastrip {
  display: flex; align-items: center; gap: 22px; padding: 18px 2px;
  border-bottom: 1px solid var(--c-border);
  font-family: var(--font-mono); font-size: 11px; color: var(--c-text-weak);
}
.article-metastrip__dim { letter-spacing: .1em; color: var(--c-text-dim); }

.article-grid {
  display: grid; grid-template-columns: 7fr 3fr; gap: 40px;
  margin-top: 32px; align-items: start;
}

/* 本文タイポグラフィ(the_content 出力) */
.article-body { font-size: 16px; line-height: 2; color: var(--c-text-body); }
.article-body p { margin: 0 0 20px; }
.article-body h2 {
  font-family: var(--font-heading); font-weight: 700; font-size: 22px;
  letter-spacing: -.01em; color: var(--c-text); margin: 36px 0 16px;
}
.article-body h3 { font-weight: 700; font-size: 18px; color: var(--c-text); margin: 30px 0 14px; }
.article-body a { color: var(--c-accent); }
.article-body img { border-radius: var(--radius-sm); border: 1px solid var(--c-border); }
.article-body figure { margin: 28px 0; }
.article-body figcaption { font-family: var(--font-mono); font-size: 10px; color: var(--c-text-dim); margin-top: 10px; }
.article-body blockquote {
  background: var(--c-panel); border: 1px solid var(--c-border); border-left: 2px solid var(--c-accent);
  border-radius: var(--radius-sm); padding: 18px 20px; margin: 28px 0;
}
.article-body ul, .article-body ol { padding-left: 24px; margin: 0 0 20px; }
.article-body table { border-collapse: collapse; width: 100%; margin: 28px 0; font-size: 14px; }
.article-body th, .article-body td { border: 1px solid var(--c-border); padding: 10px 14px; text-align: left; }
.article-body th { font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; color: var(--c-text-weak); }

/* サイドレール */
.article-rail { position: sticky; top: 84px; display: flex; flex-direction: column; gap: var(--gap); }
.article-rail .panel__label { margin-bottom: 14px; }
.rail-game { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.rail-game:hover { opacity: .7; }
.rail-game__swatch { width: 34px; height: 34px; border-radius: 8px; flex: none; }
.rail-game__name { font-weight: 700; font-size: 15px; color: var(--c-text); }
.rail-game__count { font-family: var(--font-mono); font-size: 10px; color: var(--c-text-weak); margin-top: 2px; }
.rail-post {
  display: flex; gap: 12px; align-items: center; padding: 12px 0;
  border-bottom: 1px solid var(--c-border-soft); text-decoration: none;
}
.rail-post:last-child { border-bottom: none; }
.rail-post:hover { opacity: .7; }
.rail-post__kv { width: 54px; height: 40px; border-radius: 7px; overflow: hidden; flex: none; }
.rail-post__kv img { width: 100%; height: 100%; object-fit: cover; }
.rail-post__body { flex: 1; }
.rail-post__title { font-weight: 500; font-size: 13px; line-height: 1.45; color: var(--c-text); }
.rail-post__date { font-family: var(--font-mono); font-size: 9px; color: var(--c-text-weak); margin-top: 4px; }

/* 前後記事 */
.prevnext {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap);
  margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--c-border);
}
.prevnext__item {
  background: var(--c-panel); border: 1px solid var(--c-border); border-radius: 14px;
  padding: 18px; text-decoration: none;
}
.prevnext__item:hover { border-color: rgba(255, 255, 255, .24); }
.prevnext__item--next { text-align: right; }
.prevnext__label { font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em; color: var(--c-text-weak); }
.prevnext__title { font-weight: 500; font-size: 15px; color: var(--c-text); margin-top: 10px; }

/* ---------- News ---------- */
.pinned-news {
  display: block; background: var(--c-panel); border: 1px solid rgba(55, 224, 196, .28);
  border-radius: var(--radius); padding: 28px 32px; text-decoration: none; margin-bottom: 12px;
}
.pinned-news:hover { background: var(--c-panel-hover); border-color: var(--c-accent-border); }
.pinned-news__meta { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.pinned-news__new {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--c-bg); background: var(--c-accent); border-radius: 4px; padding: 3px 8px;
}
.pinned-news__cat { font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em; color: var(--c-accent); }
.pinned-news__date { font-family: var(--font-mono); font-size: 10px; color: var(--c-text-dim); }
.pinned-news__title {
  font-family: var(--font-heading); font-weight: 700; font-size: 28px;
  letter-spacing: -.01em; margin: 0 0 12px; text-wrap: pretty;
}
.pinned-news__desc { font-size: 15px; line-height: 1.75; color: var(--c-text-weak); margin: 0 0 20px; }
.pinned-news__more { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; color: var(--c-accent); }

.news-list { display: flex; flex-direction: column; }
.news-row {
  display: grid; grid-template-columns: 160px 1fr; gap: 24px; padding: 22px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .08); text-decoration: none;
}
.news-row:hover { background: rgba(255, 255, 255, .02); }
.news-row__side { display: flex; flex-direction: column; gap: 8px; padding-top: 2px; }
.news-row__date { font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; color: var(--c-text-dim); }
.news-row__title { font-weight: 700; font-size: 18px; line-height: 1.45; color: var(--c-text); margin: 0 0 8px; text-wrap: pretty; }
.news-row__desc { font-size: 14px; line-height: 1.7; color: var(--c-text-weak); margin: 0; }

.news-badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--font-mono); font-size: 9px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--c-text-weak); border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 10px; padding: 3px 8px; align-self: flex-start;
}
.news-badge__dot { width: 5px; height: 5px; border-radius: 50%; background: currentColor; flex: none; }
.news-badge--info { color: var(--c-cat-info); border-color: rgba(55, 224, 196, .3); }
.news-badge--update { color: var(--c-cat-update); border-color: rgba(200, 160, 55, .3); }
.news-badge--game { color: var(--c-cat-game); border-color: rgba(140, 110, 220, .3); }

.news-single__meta { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.news-single__title {
  font-family: var(--font-heading); font-weight: 700; font-size: 34px;
  letter-spacing: -.01em; line-height: 1.35; margin: 0 0 28px; text-wrap: pretty;
}
.news-single__body { padding-bottom: 20px; }

/* ページャ */
.pager { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--c-border); }
.pager .page-numbers {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 38px; height: 38px; padding: 0 12px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em;
  color: var(--c-text-weak); background: transparent;
  border: 1px solid var(--c-border-strong); border-radius: 10px; text-decoration: none;
}
.pager .page-numbers.current { background: var(--c-accent); color: var(--c-bg); border-color: var(--c-accent); }
.pager .page-numbers.dots { border: none; }

/* ---------- 404 ---------- */
.notfound { min-height: calc(100vh - 64px); display: flex; align-items: center; justify-content: center; padding: 60px 20px; }
.notfound__inner { text-align: center; max-width: 540px; }
.notfound__code {
  font-family: var(--font-mono); font-weight: 500; font-size: clamp(96px, 20vw, 160px);
  line-height: 1; letter-spacing: -.04em;
}
.flicker { animation: flicker 6s ease-in-out infinite; }
@keyframes flicker {
  0%, 100% { opacity: 1; } 48% { opacity: 1; } 50% { opacity: .4; } 52% { opacity: 1; }
  94% { opacity: 1; } 96% { opacity: .6; } 98% { opacity: 1; }
}
.notfound__label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em;
  text-transform: uppercase; color: var(--c-accent); margin-top: 24px;
}
.notfound__title { font-weight: 700; font-size: 26px; line-height: 1.4; margin: 16px 0 0; text-wrap: pretty; }
.notfound__desc { font-size: 15px; line-height: 1.8; color: var(--c-text-weak); margin: 14px 0 0; }
.notfound__actions { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 40px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  border-radius: 22px; padding: 12px 24px; text-decoration: none;
}
.btn--primary { color: var(--c-bg); background: var(--c-accent); border: 1px solid var(--c-accent); }
.btn--ghost { color: var(--c-text-weak); background: transparent; border: 1px solid rgba(255, 255, 255, .18); }
.notfound__recent { margin-top: 56px; padding-top: 28px; border-top: 1px solid rgba(255, 255, 255, .08); }
.notfound__recent-label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--c-text-faint); margin-bottom: 14px;
}
.notfound__recent-row {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 14px; color: var(--c-text-weak); text-decoration: none; padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.notfound__recent-row:last-child { border-bottom: none; }
.notfound__recent-row:hover { color: var(--c-text); }
.notfound__recent-date { font-family: var(--font-mono); font-size: 10px; color: var(--c-text-dim); flex: none; margin-left: 16px; }


/* ---------- ヘッダー幅: トップ1280 / 下層1080 ---------- */
body:not(.is-front) .site-header__inner { max-width: var(--container); }
body.is-front .menu-btn { gap: 6px; }

/* ---------- トップ: 画面固定 + 左右カラム独立スクロール ---------- */
body.is-front { height: 100vh; overflow: hidden; display: flex; flex-direction: column; }
body.is-front.admin-bar { height: calc(100vh - 32px); }
body.is-front .site-header { position: relative; flex: none; }
body.is-front .site-main { flex: 1; min-height: 0; display: flex; }
.front-grid { flex: 1; min-height: 0; padding-bottom: 0; align-items: stretch; }
.front-col { min-height: 0; overflow-y: auto; padding-right: 7px; padding-bottom: 20px; }
.front-col > * { flex: none; }
.front-col { min-width: 0; }
.chip { max-width: 100%; overflow-wrap: anywhere; }
.front-col::-webkit-scrollbar { width: 9px; }
.front-col::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, .12); border-radius: 5px; }
.front-col::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, .2); }
.front-col::-webkit-scrollbar-track { background: transparent; }
.front-col .chip { padding: 6px 13px; }
.front-col .loadmore-wrap { padding: 2px 0 4px; }
.filter__chips--news .chip__sw { width: 8px; height: 8px; border-radius: 2px; }

/* ---------- レスポンシブ(プロトタイプのブレークポイント準拠) ---------- */
@media (max-width: 920px) {
  body.is-front, body.is-front.admin-bar { height: auto; overflow: visible; display: block; }
  body.is-front .site-main { display: block; }
  .front-grid { grid-template-columns: 1fr; }
  .front-col { overflow: visible; padding-right: 0; padding-bottom: 8px; }
  body.is-front .desktop-nav { display: none; }
  body.is-front .menu-btn { display: flex; }
}
@media (max-width: 900px) {
  .arch-grid { column-count: 2; }
  body.tax-game .desktop-nav { display: none; }
  body.tax-game .menu-btn { display: flex; }
}
@media (max-width: 860px) {
  .desktop-nav { display: none; }
  .menu-btn { display: flex; }
  .article-grid { grid-template-columns: 1fr; }
  .article-rail { position: static; }
  .news-row { grid-template-columns: 1fr; gap: 6px; }
}
@media (max-width: 782px) {
  body.is-front.admin-bar { height: auto; }
}
@media (max-width: 560px) {
  .masonry { column-count: 1; }
  .arch-grid { column-count: 1; }
}