/* ---------- Gradient hairline ---------- */
.cb-hairline {
  height: 3px;
  background: var(--cb-gradient);
  position: sticky;
  top: 0;
  z-index: 60;
}

/* ---------- Header ---------- */
.cb-header {
  position: sticky;
  top: 3px;
  z-index: 50;
  background: color-mix(in srgb, var(--cb-bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--cb-rule);
}
.cb-header__inner {
  display: flex; align-items: center; gap: 24px;
  height: 64px;
}
.cb-brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--cb-ink);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.cb-brand:hover { color: var(--cb-ink); text-decoration: none; }
.cb-brand__mark {
  width: 26px; height: 26px;
  display: block;
  flex: none;
  position: relative;
  top: -1px;
}
.cb-nav {
  display: flex; align-items: center; gap: 22px;
  margin-left: auto;
}
.cb-nav a {
  color: var(--cb-ink-soft);
  font-weight: 500;
  font-size: 0.95rem;
}
.cb-nav a:hover { color: var(--cb-ink); text-decoration: none; }
.cb-nav a.is-active { color: var(--cb-ink); }

/* ---------- Theme toggle ---------- */
.cb-theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border-radius: 999px;
  border: 1px solid var(--cb-rule);
  background: transparent;
  color: var(--cb-ink-soft);
  cursor: pointer;
  transition: all var(--cb-dur) var(--cb-ease);
}
.cb-theme-toggle:hover { color: var(--cb-ink); border-color: var(--cb-ink-soft); }
.cb-theme-toggle svg { width: 18px; height: 18px; }
.cb-theme-toggle [data-theme-icon] { display: none; }
:root[data-theme="light"] .cb-theme-toggle [data-theme-icon="light"] { display: inline; }
:root[data-theme="dark"]  .cb-theme-toggle [data-theme-icon="dark"]  { display: inline; }

/* ---------- Buttons ---------- */
.cb-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px;
  border-radius: var(--cb-radius);
  font-weight: 600;
  font-size: 0.96rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--cb-dur) var(--cb-ease);
  text-decoration: none;
}
.cb-btn--primary {
  background: var(--cb-accent);
  color: var(--cb-accent-ink);
}
.cb-btn--primary:hover {
  background: var(--cb-accent-hover);
  color: var(--cb-accent-ink);
  text-decoration: none;
}
.cb-btn--ghost {
  background: transparent;
  color: var(--cb-ink);
  border-color: var(--cb-rule);
}
.cb-btn--ghost:hover {
  border-color: var(--cb-ink);
  color: var(--cb-ink);
  text-decoration: none;
}

/* ---------- Hero ---------- */
.cb-hero {
  position: relative;
  padding: 96px 0 30px;
  overflow: hidden;
  isolation: isolate;
}
.cb-hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 60% at 20% 0%, var(--cb-hero-wash-a), transparent 60%),
    radial-gradient(60% 60% at 85% 10%, var(--cb-hero-wash-b), transparent 60%);
  z-index: -1;
}

.cb-hero .cb-underline {
  background: var(--cb-gradient);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}
.cb-hero h1 {
  white-space: nowrap;
  font-size: clamp(1.85rem, 1.2rem + 2.1vw, 3rem);
}
.cb-hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* ---------- Reading-path strip ---------- */
.cb-path {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 24px 0;
  border-top: 1px solid var(--cb-rule);
  border-bottom: 1px solid var(--cb-rule);
}
.cb-path__chip {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px;
  border-radius: var(--cb-radius);
  color: var(--cb-ink-soft);
}
.cb-path__num {
  flex: 0 0 auto;
  width: 28px; height: 28px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--cb-rule);
  color: var(--cb-accent);
  font-weight: 700;
  font-size: 0.85rem;
  font-family: var(--cb-font-mono);
}
.cb-path__chip strong { display: block; color: var(--cb-ink); font-size: 0.95rem; }
.cb-path__chip span   { font-size: 0.85rem; color: var(--cb-muted); }
@media (max-width: 900px) { .cb-path { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 540px) { .cb-path { grid-template-columns: 1fr; } }

/* ---------- Library grid ---------- */
.cb-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 48px 0 64px;
}
@media (max-width: 1099px) { .cb-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 699px)  { .cb-grid { grid-template-columns: 1fr; } }

.cb-card {
  display: flex; flex-direction: column;
  padding: 24px;
  border: 1px solid var(--cb-rule);
  border-radius: var(--cb-radius-lg);
  background: var(--cb-bg-soft);
  color: var(--cb-ink);
  box-shadow: var(--cb-shadow-card);
  transition: transform var(--cb-dur) var(--cb-ease),
              box-shadow var(--cb-dur) var(--cb-ease),
              border-color var(--cb-dur) var(--cb-ease);
  text-decoration: none;
  min-height: 200px;
}
.cb-card:hover {
  transform: translateY(-8px);
  border-color: var(--cb-accent);
  box-shadow: var(--cb-shadow-card-hover);
  color: var(--cb-ink);
  text-decoration: none;
}
.cb-card__glyph {
  width: 48px; height: 48px;
  margin-bottom: 14px;
  display: block;
  flex: none;
}
.cb-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cb-ink);
  margin: 0 0 6px;
}
.cb-card__sub {
  font-size: 0.9rem;
  color: var(--cb-muted);
  font-family: var(--cb-font-mono);
  margin: 0 0 10px;
}
.cb-card__desc {
  font-size: 0.95rem;
  color: var(--cb-ink-soft);
  margin: 0;
}

/* ---------- Why tiles ---------- */
.cb-why {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 16px;
  margin: 40px 0 64px;
}
@media (max-width: 900px) { .cb-why { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 540px) { .cb-why { grid-template-columns: 1fr; } }
.cb-why__tile {
  padding: 20px;
  border: 1px solid var(--cb-rule);
  border-radius: var(--cb-radius);
  background: var(--cb-bg-soft);
}
.cb-why__tile strong { display: block; color: var(--cb-ink); margin-bottom: 4px; }
.cb-why__tile span   { font-size: 0.92rem; color: var(--cb-muted); }

/* ---------- Hero tagline ---------- */
.cb-hero__tagline {
  margin-top: 22px;
  font-family: var(--cb-font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cb-muted);
}

/* ---------- Stats banner ---------- */
.cb-stats {
  border-top: 1px solid var(--cb-rule);
  border-bottom: 1px solid var(--cb-rule);
  background: var(--cb-bg-soft);
  padding: 28px 0;
}
.cb-stats__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.cb-stats__item {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 4px;
  padding: 4px 8px;
}
.cb-stats__item + .cb-stats__item { border-left: 1px solid var(--cb-rule); }
.cb-stats__num {
  font-size: clamp(1.4rem, 1rem + 1.4vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--cb-ink);
  font-family: var(--cb-font-mono);
}
.cb-stats__num--accent {
  background: var(--cb-gradient);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}
.cb-stats__label {
  font-size: 0.82rem;
  color: var(--cb-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.cb-stats__note {
  margin: 18px 0 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--cb-muted);
  font-family: var(--cb-font-mono);
}
@media (max-width: 760px) {
  .cb-stats__inner { grid-template-columns: repeat(2, 1fr); gap: 20px 0; }
  .cb-stats__item:nth-child(odd) { border-left: 0; }
}

/* ---------- Group legend ---------- */
.cb-legend {
  display: flex; flex-wrap: wrap; gap: 10px 20px;
  margin: 48px 0 22px;
}
.cb-legend__item {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.85rem;
  color: var(--cb-ink-soft);
}
.cb-legend__dot {
  width: 11px; height: 11px; border-radius: 999px;
  background: var(--g, var(--cb-accent));
}

/* ---------- Ecosystem cards ---------- */
.cb-grid + .cb-groups { margin-top: 24px; }
.cb-card--eco {
  position: relative;
  background: color-mix(in srgb, var(--g, var(--cb-accent)) 7%, var(--cb-bg-soft));
  border-color: color-mix(in srgb, var(--g, var(--cb-accent)) 22%, var(--cb-rule));
  overflow: hidden;
  min-height: 220px;
}
.cb-card--eco::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--g, var(--cb-accent));
  opacity: 0.85;
}
.cb-card--eco:hover {
  border-color: var(--g, var(--cb-accent));
}
.cb-card__cat {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--g, var(--cb-accent));
  margin-bottom: 6px;
}

/* ---------- Group introductions ---------- */
.cb-groups { margin: 72px 0; }
.cb-group-intro {
  border-left: 3px solid var(--g, var(--cb-accent));
  padding: 4px 0 4px 22px;
  margin: 28px 0;
}
.cb-group-intro h3 {
  margin: 0 0 6px;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--cb-ink);
}
.cb-group-intro__members {
  margin: 0 0 10px;
  font-family: var(--cb-font-mono);
  font-size: 0.82rem;
  color: var(--g, var(--cb-accent));
}
.cb-group-intro p:last-child {
  margin: 0;
  color: var(--cb-ink-soft);
}

/* ---------- Craftsmanship ---------- */
.cb-craft {
  border-top: 1px solid var(--cb-rule);
  background: var(--cb-bg-soft);
  padding: 72px 0 88px;
}
.cb-craft__lede {
  max-width: 72ch;
  margin: 12px 0 32px;
  font-size: 1.05rem;
  color: var(--cb-ink-soft);
}
.cb-craft__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 900px) { .cb-craft__grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px) { .cb-craft__grid { grid-template-columns: 1fr; } }
.cb-craft__tile {
  padding: 20px;
  border: 1px solid var(--cb-rule);
  border-radius: var(--cb-radius);
  background: var(--cb-bg);
}
.cb-craft__tile strong { display: block; color: var(--cb-ink); margin-bottom: 6px; }
.cb-craft__tile span   { font-size: 0.92rem; color: var(--cb-muted); }
.cb-craft__badges {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 32px;
}
.cb-craft__badge {
  font-family: var(--cb-font-mono);
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--cb-rule);
  background: var(--cb-bg);
  color: var(--cb-ink-soft);
}

/* ---------- Footer ---------- */
.cb-footer {
  border-top: 1px solid var(--cb-rule);
  padding: 40px 0;
  color: var(--cb-muted);
  font-size: 0.9rem;
}
.cb-footer__inner { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; }
.cb-footer a { color: var(--cb-ink-soft); }
.cb-footer__links { display: flex; gap: 18px; margin-left: auto; }

/* ---------- Library page: hero band ---------- */
.cb-libhero {
  padding: 72px 0 56px;
  background: var(--cb-bg-soft);
  border-bottom: 1px solid var(--cb-rule);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.cb-libhero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(50% 70% at 15% 0%, var(--cb-hero-wash-a), transparent 70%),
    radial-gradient(50% 70% at 90% 20%, var(--cb-hero-wash-b), transparent 70%);
  z-index: -1;
}
.cb-libhero__glyph {
  width: 96px; height: 96px; margin-bottom: 20px;
  display: block;
}
.cb-libhero__meta {
  display: flex; flex-wrap: wrap; gap: 14px;
  font-family: var(--cb-font-mono);
  font-size: 0.85rem;
  color: var(--cb-muted);
  margin: 18px 0 28px;
}
.cb-libhero__meta span { display: inline-flex; align-items: center; gap: 6px; }
.cb-libhero__meta span::before {
  content: ""; width: 4px; height: 4px; border-radius: 999px;
  background: var(--cb-accent); display: inline-block;
}

/* ---------- Library page: layout with right TOC ---------- */
.cb-libmain {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 56px;
  padding: 56px 0 80px;
  align-items: start;
}
@media (max-width: 1099px) { .cb-libmain { grid-template-columns: 1fr; } .cb-toc { display: none; } }

.cb-toc {
  position: sticky; top: 96px;
  font-size: 0.88rem;
  border-left: 1px solid var(--cb-rule);
  padding-left: 16px;
}
.cb-toc__label {
  font-weight: 700; font-size: 0.78rem;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--cb-muted); margin-bottom: 10px;
}
.cb-toc ul { list-style: none; padding: 0; margin: 0; }
.cb-toc a { display: block; padding: 6px 0; color: var(--cb-ink-soft); }
.cb-toc a:hover { color: var(--cb-accent); text-decoration: none; }
.cb-toc a.is-active { color: var(--cb-accent); font-weight: 600; }

/* Package quick-links nested under "Packages (n)" in the TOC */
.cb-toc__sub {
  list-style: none;
  margin: 2px 0 6px 10px;
  padding: 0 0 0 10px;
  border-left: 1px solid var(--cb-rule);
}
.cb-toc__sub a {
  padding: 3px 0;
  font-size: 0.79rem;
  font-family: var(--cb-font-mono);
  color: var(--cb-muted);
  overflow-wrap: anywhere;
  line-height: 1.35;
}
.cb-toc__sub a:hover { color: var(--cb-accent); }

/* ---------- Capability chips ---------- */
.cb-chips {
  display: grid; grid-template-columns: repeat(2,1fr); gap: 10px;
  padding: 0; margin: 0; list-style: none;
}
@media (max-width: 699px) { .cb-chips { grid-template-columns: 1fr; } }
.cb-chip {
  padding: 12px 14px;
  border: 1px solid var(--cb-rule);
  border-radius: var(--cb-radius);
  background: var(--cb-bg-soft);
}
.cb-chip code {
  display: block; font-size: 0.85rem;
  color: var(--cb-accent); background: transparent; border: 0; padding: 0;
}
.cb-chip span { color: var(--cb-muted); font-size: 0.88rem; }

/* ---------- Tabs ---------- */
.cb-tabs { margin: 16px 0; }
.cb-tabs__list {
  display: inline-flex; gap: 2px;
  background: var(--cb-bg-sunk);
  border: 1px solid var(--cb-rule);
  border-radius: var(--cb-radius);
  padding: 4px;
}
.cb-tabs__tab {
  background: transparent;
  border: 0;
  color: var(--cb-ink-soft);
  font: inherit; font-weight: 500; font-size: 0.88rem;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
}
.cb-tabs__tab[aria-selected="true"] {
  background: var(--cb-bg);
  color: var(--cb-ink);
  box-shadow: 0 1px 2px rgba(26,19,32,0.06);
}
.cb-tabs__panel[hidden] { display: none; }

/* ---------- Code block with copy button ---------- */
.cb-code {
  position: relative;
  background: var(--cb-code-bg);
  border: 1px solid var(--cb-rule);
  border-radius: var(--cb-radius);
  overflow: hidden;
}
.cb-code pre {
  margin: 0;
  padding: 16px 18px;
  overflow-x: auto;
  color: var(--cb-code-ink);
  font-size: 0.9rem;
  line-height: 1.6;
}
.cb-code__copy {
  position: absolute; top: 8px; right: 8px;
  background: var(--cb-bg);
  border: 1px solid var(--cb-rule);
  border-radius: 6px;
  color: var(--cb-ink-soft);
  font: inherit; font-size: 0.78rem; padding: 4px 10px;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--cb-dur) var(--cb-ease);
}
.cb-code:hover .cb-code__copy,
.cb-code__copy:focus-visible { opacity: 1; }
.cb-code__copy.is-ok { color: var(--cb-accent); }

/* syntax spans */
.t-kw  { color: var(--cb-syn-kw); }
.t-ty  { color: var(--cb-syn-ty); }
.t-str { color: var(--cb-syn-str); }
.t-num { color: var(--cb-syn-num); }
.t-cmt { color: var(--cb-syn-cmt); font-style: italic; }
.t-fn  { color: var(--cb-syn-fn); }

/* ---------- Guidance two-col ---------- */
.cb-guide {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px;
  margin: 20px 0;
}
@media (max-width: 699px) { .cb-guide { grid-template-columns: 1fr; } }
.cb-guide__col {
  padding: 20px;
  border: 1px solid var(--cb-rule);
  border-radius: var(--cb-radius);
  background: var(--cb-bg-soft);
}
.cb-guide__col h3 { margin-top: 0; }
.cb-guide__col ul { margin: 0; padding-left: 1.2em; color: var(--cb-ink-soft); }
.cb-guide__col li { margin-bottom: 6px; }
.cb-guide__col--ok h3::before    { content: "✅ "; }
.cb-guide__col--warn h3::before  { content: "⚠️ "; }

/* ---------- Related cards ---------- */
.cb-related {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 14px;
  margin: 20px 0;
}
@media (max-width: 899px) { .cb-related { grid-template-columns: 1fr; } }
.cb-related__card {
  padding: 18px;
  border: 1px solid var(--cb-rule);
  border-radius: var(--cb-radius);
  background: var(--cb-bg-soft);
  color: var(--cb-ink);
  text-decoration: none;
  transition: all var(--cb-dur) var(--cb-ease);
}
.cb-related__card:hover { border-color: var(--cb-accent); text-decoration: none; color: var(--cb-ink); transform: translateY(-2px); }
.cb-related__card strong { display: block; margin-bottom: 4px; }
.cb-related__card span   { color: var(--cb-muted); font-size: 0.88rem; }

/* ---------- Links list ---------- */
.cb-links {
  list-style: none; padding: 0; margin: 0;
  display: block;
}
.cb-links a {
  display: flex; gap: 8px; align-items: flex-start;
  padding: 6px 0;
  color: var(--cb-ink-soft);
  border-bottom: 1px solid var(--cb-rule);
  min-width: 0;
  word-break: break-word;
  flex-wrap: wrap;
}
.cb-links span.cb-link-glyph { flex-shrink: 0; }
.cb-links a:hover { color: var(--cb-accent); }

/* Breadcrumbs (library sub-pages) */
.cb-breadcrumbs {
  display: flex; flex-wrap: wrap; gap: 8px;
  font-size: 0.875rem;
  color: var(--cb-ink-soft);
  margin-bottom: 16px;
}
.cb-breadcrumbs a {
  color: var(--cb-ink-soft);
  text-decoration: none;
}
.cb-breadcrumbs a:hover { color: var(--cb-brand-2); text-decoration: underline; }
.cb-breadcrumbs span[aria-hidden] { color: var(--cb-line); }
.cb-breadcrumbs [aria-current="page"] { color: var(--cb-ink); font-weight: 600; }

/* Package grid on family overview pages */
.cb-pkg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 14px;
  margin-top: 18px;
}
.cb-pkg-card {
  display: flex; flex-direction: column; gap: 10px;
  padding: 18px 20px;
  border: 1px solid var(--cb-line);
  border-radius: var(--cb-radius-md);
  background: var(--cb-surface);
  color: var(--cb-ink);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.cb-pkg-card:hover {
  border-color: var(--cb-brand-2);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px -10px rgba(0,0,0,0.15);
  text-decoration: none;
}
.cb-pkg-card__name {
  font-family: var(--cb-font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cb-brand-2);
  background: transparent;
  padding: 0;
  word-break: break-all;
}
.cb-pkg-card__blurb {
  font-size: 0.9rem;
  color: var(--cb-ink-soft);
  line-height: 1.5;
}

/* Package card icon (family index) */
.cb-pkg-card { flex-direction: row; align-items: flex-start; gap: 14px; }
.cb-pkg-card__icon {
  width: 40px; height: 40px;
  flex: 0 0 40px;
  border-radius: 8px;
  background: var(--cb-surface-alt, var(--cb-bg));
  object-fit: contain;
  padding: 4px;
  border: 1px solid var(--cb-line);
}
.cb-pkg-card__body { display: flex; flex-direction: column; gap: 6px; min-width: 0; }

/* Related package card icon */
.cb-related__icon {
  width: 32px; height: 32px;
  border-radius: 6px;
  object-fit: contain;
  padding: 3px;
  border: 1px solid var(--cb-line);
  background: var(--cb-surface-alt, var(--cb-bg));
  margin-bottom: 6px;
}

/* What's-inside block */
.cb-facts {
  list-style: none; padding: 0; margin: 8px 0 16px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 8px 20px;
  color: var(--cb-ink-soft);
  font-size: 0.95rem;
}
.cb-facts li { padding: 6px 0; border-bottom: 1px dashed var(--cb-line); }
.cb-facts strong { color: var(--cb-ink); font-weight: 600; }

.cb-ns-list {
  list-style: none; padding: 0; margin: 0 0 18px;
  display: flex; flex-wrap: wrap; gap: 6px;
}
.cb-ns-list code {
  font-size: 0.825rem;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--cb-surface-alt, var(--cb-bg));
  border: 1px solid var(--cb-line);
  color: var(--cb-brand-2);
}

.cb-type-list {
  list-style: none; padding: 0; margin: 0 0 18px;
}
.cb-type-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--cb-line);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--cb-ink-soft);
}
.cb-type-list li code {
  color: var(--cb-ink);
  font-weight: 600;
}
.cb-type-kind {
  display: inline-block;
  min-width: 72px;
  font-family: var(--cb-font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cb-brand-2);
  margin-right: 6px;
}

.cb-extcls {
  margin: 10px 0;
  padding: 12px 16px;
  border: 1px solid var(--cb-line);
  border-radius: var(--cb-radius-md);
  background: var(--cb-surface);
}
.cb-extcls[open] { border-color: var(--cb-brand-2); }
.cb-extcls > summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px;
}
.cb-extcls > summary::-webkit-details-marker { display: none; }
.cb-extcls > summary::before {
  content: "▸";
  color: var(--cb-ink-soft);
  transition: transform 0.15s;
  display: inline-block;
}
.cb-extcls[open] > summary::before { transform: rotate(90deg); }
.cb-extcls > summary code { color: var(--cb-brand-2); font-weight: 600; }
.cb-extcls .cb-count {
  font-size: 0.8rem;
  color: var(--cb-ink-soft);
  font-weight: 400;
}
.cb-method-list {
  list-style: none; padding: 10px 0 0; margin: 0;
}
.cb-method-list li {
  padding: 6px 0;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--cb-ink-soft);
  border-bottom: 1px dashed var(--cb-line);
}
.cb-method-list li:last-child { border-bottom: 0; }
.cb-method-list li code {
  color: var(--cb-ink);
  font-weight: 600;
}
.cb-extcls__src { margin: 10px 0 0; font-size: 0.85rem; }

.cb-callout {
  padding: 10px 14px;
  background: var(--cb-surface-alt, var(--cb-bg));
  border-left: 3px solid var(--cb-brand-2);
  border-radius: 4px;
  margin: 12px 0;
  font-size: 0.95rem;
}
.cb-callout--warn { border-left-color: #d97706; }