:root {
  --kotan-accent: #7c5cff;
  --kotan-ink: #171721;
  --kotan-muted: #686877;
  --kotan-line: #e7e5ee;
  --kotan-soft: #f6f4ff;
  --kotan-card: #ffffff;
  --kotan-radius: 22px;
  --kotan-shadow: 0 18px 50px rgba(30, 23, 63, .08);
}

html { scroll-behavior: smooth; }
body.kotan-editorial-enabled {
  color: var(--kotan-ink);
  background: #faf9fc;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}
body.kotan-editorial-enabled p,
body.kotan-editorial-enabled li { line-height: 1.9; }
body.kotan-editorial-enabled a { text-underline-offset: .16em; }

body.kotan-editorial-enabled main,
body.kotan-editorial-enabled .wp-site-blocks > main {
  overflow: visible;
}

body.kotan-single-article .wp-block-post-content,
body.kotan-single-article .entry-content {
  max-width: 900px;
  margin-inline: auto;
}
body.kotan-single-article .wp-block-post-title,
body.kotan-single-article .entry-title {
  max-width: 900px;
  margin: 1.2rem auto .9rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.28;
  letter-spacing: -.035em;
}
body.kotan-single-article .wp-block-query-title { display: none !important; }

.kotan-article-shell {
  max-width: 900px;
  margin: 0 auto;
}
.kotan-article-body {
  background: var(--kotan-card);
  border: 1px solid var(--kotan-line);
  border-radius: var(--kotan-radius);
  box-shadow: var(--kotan-shadow);
  padding: clamp(24px, 5vw, 58px);
  margin: 22px 0 36px;
}
.kotan-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: .82rem;
  color: var(--kotan-muted);
  margin: 8px 0 18px;
}
.kotan-breadcrumbs a { color: inherit; text-decoration: none; }
.kotan-breadcrumbs a:hover { color: var(--kotan-accent); }
.kotan-article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--kotan-muted);
  font-size: .86rem;
  margin: 0 0 20px;
}
.kotan-meta-number {
  display: inline-flex;
  color: var(--kotan-accent);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .12em;
}
.kotan-meta-dot { color: #c7c3d4; }

.kotan-toc {
  background: linear-gradient(135deg, var(--kotan-soft), #fff);
  border: 1px solid color-mix(in srgb, var(--kotan-accent) 20%, white);
  border-radius: 18px;
  padding: 8px 20px 16px;
  margin: 0 0 26px;
}
.kotan-toc-toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--kotan-ink);
  font: inherit;
  font-weight: 800;
  padding: 12px 0 8px;
  cursor: pointer;
}
.kotan-toc-icon { color: var(--kotan-accent); font-size: 1.3rem; }
.kotan-toc-list { margin: 8px 0 0; padding-left: 1.4rem; }
.kotan-toc-list li { margin: .35rem 0; line-height: 1.55; }
.kotan-toc-list a { color: #343240; text-decoration: none; }
.kotan-toc-list a:hover { color: var(--kotan-accent); }
.kotan-toc-level-3 { margin-left: 1.15rem !important; font-size: .93rem; }
.kotan-toc.is-collapsed .kotan-toc-list { display: none; }

.kotan-article-body > p:first-child {
  font-size: 1.08rem;
  color: #3c3947;
}
.kotan-article-body h2 {
  position: relative;
  margin: 3.2rem 0 1.35rem;
  padding: 1.05rem 1.2rem 1.05rem 1.45rem;
  background: linear-gradient(90deg, var(--kotan-soft), rgba(255,255,255,.65));
  border-radius: 14px;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.45;
  letter-spacing: -.02em;
}
.kotan-article-body h2::before {
  content: "";
  position: absolute;
  inset: 12px auto 12px 0;
  width: 5px;
  border-radius: 999px;
  background: var(--kotan-accent);
}
.kotan-article-body h3 {
  margin: 2.3rem 0 1rem;
  padding-bottom: .65rem;
  border-bottom: 2px solid var(--kotan-line);
  font-size: clamp(1.22rem, 2.5vw, 1.5rem);
  line-height: 1.5;
}
.kotan-article-body h3::after {
  content: "";
  display: block;
  width: 64px;
  height: 2px;
  margin-bottom: -2px;
  transform: translateY(.65rem);
  background: var(--kotan-accent);
}
.kotan-article-body ul,
.kotan-article-body ol {
  background: #fbfaff;
  border: 1px solid var(--kotan-line);
  border-radius: 14px;
  padding: 1.2rem 1.3rem 1.2rem 2.5rem;
}
.kotan-article-body blockquote {
  margin: 1.8rem 0;
  padding: 1.1rem 1.3rem;
  border-left: 5px solid var(--kotan-accent);
  border-radius: 0 12px 12px 0;
  background: var(--kotan-soft);
}
.kotan-article-body img { border-radius: 16px; }
.kotan-article-body table,
.kotan-article-body .wp-block-table table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--kotan-line);
  border-radius: 14px;
  font-size: .92rem;
}
.kotan-article-body .wp-block-table {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.kotan-article-body th {
  background: #2d2938;
  color: #fff;
  font-weight: 700;
  white-space: nowrap;
}
.kotan-article-body th,
.kotan-article-body td { padding: .9rem .85rem; border: 0; border-bottom: 1px solid var(--kotan-line); }
.kotan-article-body tr:last-child td { border-bottom: 0; }
.kotan-article-body tr:nth-child(even) td { background: #faf9fd; }

.kotan-read-more,
.kotan-article-body .wp-block-button__link {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .78rem 1.1rem;
  border-radius: 999px;
  background: var(--kotan-accent);
  color: #fff !important;
  font-weight: 800;
  text-decoration: none !important;
  transition: transform .18s ease, box-shadow .18s ease;
}
.kotan-read-more:hover,
.kotan-article-body .wp-block-button__link:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--kotan-accent) 25%, transparent);
}

.kotan-related { margin: 54px 0 20px; }
.kotan-section-heading > span,
.kotan-index-eyebrow {
  color: var(--kotan-accent);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .16em;
}
.kotan-section-heading h2 { margin: .35rem 0 1.3rem; font-size: clamp(1.55rem, 3vw, 2rem); }
.kotan-related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.kotan-related-card {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--kotan-line);
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(31, 26, 57, .06);
}
.kotan-related-card a { color: inherit; text-decoration: none; }
.kotan-related-thumb,
.kotan-related-placeholder { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; }
.kotan-related-placeholder,
.kotan-index-placeholder,
.kotan-archive-placeholder {
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #e9e4ff, #fff0f6);
  color: var(--kotan-accent);
  font-weight: 900;
  letter-spacing: .16em;
}
.kotan-related-copy { padding: 16px; }
.kotan-related-number { color: var(--kotan-accent); font-size: .68rem; font-weight: 900; letter-spacing: .12em; }
.kotan-related-copy h3 { margin: .45rem 0 0; font-size: 1rem; line-height: 1.55; }

.kotan-index-wrap { max-width: 1120px; margin: 0 auto; padding: 24px 20px 70px; }
.kotan-index-header { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin: 20px 0 30px; }
.kotan-index-header h1 { margin: .3rem 0 .6rem; font-size: clamp(2.3rem, 6vw, 4.6rem); letter-spacing: -.05em; }
.kotan-index-header p { margin: 0; color: var(--kotan-muted); }
.kotan-index-count { display: flex; flex-direction: column; align-items: end; }
.kotan-index-count strong { font-size: clamp(2.5rem, 6vw, 5rem); line-height: .85; }
.kotan-index-count span { margin-top: .55rem; color: var(--kotan-accent); font-size: .72rem; font-weight: 900; letter-spacing: .14em; }
.kotan-index-toolbar { margin-bottom: 24px; }
.kotan-index-search { width: min(100%, 460px); padding: 14px 18px; border: 1px solid var(--kotan-line); border-radius: 999px; background: #fff; font: inherit; }
.kotan-index-search:focus { outline: 3px solid color-mix(in srgb, var(--kotan-accent) 18%, transparent); border-color: var(--kotan-accent); }
.kotan-index-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.kotan-index-card { overflow: hidden; background: #fff; border: 1px solid var(--kotan-line); border-radius: 22px; box-shadow: var(--kotan-shadow); }
.kotan-index-image { display: block; overflow: hidden; }
.kotan-index-thumb,
.kotan-index-placeholder { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; transition: transform .35s ease; }
.kotan-index-card:hover .kotan-index-thumb { transform: scale(1.035); }
.kotan-index-copy { padding: 24px; }
.kotan-index-meta { display: flex; gap: 10px; flex-wrap: wrap; color: var(--kotan-accent); font-size: .68rem; font-weight: 900; letter-spacing: .09em; }
.kotan-index-copy h2 { margin: .75rem 0 .7rem; font-size: 1.35rem; line-height: 1.5; }
.kotan-index-copy h2 a { color: inherit; text-decoration: none; }
.kotan-index-copy p { color: var(--kotan-muted); font-size: .94rem; }
.kotan-index-empty { text-align: center; padding: 60px 20px; color: var(--kotan-muted); }

body.blog .wp-block-query-title,
body.archive .wp-block-query-title { font-size: clamp(2rem, 5vw, 3.4rem); letter-spacing: -.04em; }
body.blog .wp-block-post,
body.archive .wp-block-post,
body.search .wp-block-post {
  max-width: 980px;
  margin: 0 auto 28px;
}
.kotan-archive-card {
  display: grid;
  grid-template-columns: minmax(220px, 38%) 1fr;
  overflow: hidden;
  border: 1px solid var(--kotan-line);
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--kotan-shadow);
}
.kotan-archive-image { display: block; min-height: 100%; }
.kotan-archive-thumb,
.kotan-archive-placeholder { width: 100%; height: 100%; min-height: 260px; object-fit: cover; display: block; }
.kotan-archive-content { padding: 28px; }
.kotan-archive-kicker { display: flex; gap: 12px; color: var(--kotan-accent); font-size: .68rem; font-weight: 900; letter-spacing: .1em; }
.kotan-archive-excerpt { color: var(--kotan-muted); }

@media (max-width: 800px) {
  .kotan-article-body { padding: 24px 20px; border-radius: 16px; }
  .kotan-related-grid { grid-template-columns: 1fr; }
  .kotan-index-grid { grid-template-columns: 1fr; }
  .kotan-index-header { align-items: flex-start; flex-direction: column; }
  .kotan-index-count { align-items: flex-start; }
  .kotan-archive-card { grid-template-columns: 1fr; }
  .kotan-archive-thumb,
  .kotan-archive-placeholder { min-height: 0; aspect-ratio: 16 / 9; }
  .kotan-meta-dot { display: none; }
  .kotan-article-meta { gap: 6px 14px; }
  .kotan-article-body h2 { margin-top: 2.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}