/* NADIR long-form article layout — TOC, breadcrumbs, reading time */

.nadir-article .article-shell {
  padding-block: 0 4rem;
}

.article-hero {
  padding-block: 2rem 0.5rem;
}

.article-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  font-size: 0.82rem;
  color: var(--text3);
}

.article-breadcrumb li + li::before {
  content: "›";
  margin-right: 0.5rem;
  color: var(--text3);
  opacity: 0.7;
}

.article-breadcrumb a {
  color: var(--text2);
}

.article-breadcrumb a:hover {
  color: var(--accent-bright);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin-top: 0.75rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text3);
}

.article-meta__reading {
  color: var(--accent-bright);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

@media (min-width: 960px) {
  .article-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 3rem;
  }
}

.article-sidebar {
  position: relative;
}

@media (min-width: 960px) {
  .article-sidebar {
    position: sticky;
    top: calc(var(--header-height, 72px) + 1.5rem);
  }
}

.article-toc-toggle {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-elev-2);
  color: var(--text);
  font-family: var(--display);
  font-size: 0.9rem;
  cursor: pointer;
}

@media (min-width: 960px) {
  .article-toc-toggle {
    display: none;
  }
}

.article-toc {
  margin-top: 0.75rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-elev-2);
}

@media (max-width: 959px) {
  .article-toc {
    display: none;
    margin-top: 0.5rem;
  }

  .article-toc.is-open {
    display: block;
  }
}

.article-toc__label {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text3);
  margin: 0 0 0.75rem;
}

.article-toc__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.article-toc__list a {
  display: block;
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--text2);
  padding: 0.25rem 0;
  border-left: 2px solid transparent;
  padding-left: 0.65rem;
  transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease;
}

.article-toc__list a:hover,
.article-toc__list a.is-active {
  color: var(--accent-bright);
  border-left-color: var(--accent);
}

.article-toc__list .toc-h3 a {
  padding-left: 1.25rem;
  font-size: 0.78rem;
  color: var(--text3);
}

.article-layout .prose-article {
  max-width: 68ch;
}

.article-layout .prose-article h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

.article-featured-card {
  display: grid;
  gap: 0.75rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(249, 115, 22, 0.35);
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.08), transparent 55%);
}

.article-featured-card h2 {
  font-size: 1.35rem;
  margin: 0;
}

.article-featured-card p {
  color: var(--text2);
  margin: 0;
  max-width: 62ch;
}

.article-footer-cta {
  padding-top: 0;
}

@media (prefers-reduced-motion: reduce) {
  .article-toc__list a {
    transition: none;
  }
}