.topic-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.topic-hero,
.topics-index-hero {
  padding: 36px 0 40px;
}

.topic-hero-card {
  padding: 40px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(96,165,250,0.08) 0%, rgba(167,139,250,0.06) 100%);
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 24px 80px rgba(0,0,0,0.24);
}

.topic-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  margin-bottom: 22px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 1.3px;
  text-transform: uppercase;
}

.topic-kicker-emoji {
  font-size: 1rem;
}

.topic-hero-card h1 {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: clamp(2.5rem, 6vw, 4.6rem);
  font-weight: 400;
  line-height: 1.02;
  margin-bottom: 20px;
}

.topic-highlight {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.topic-description {
  max-width: 760px;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-mid);
}

.topic-meta-row {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.topic-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topic-author img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.12);
}

.topic-author-name {
  font-size: 0.88rem;
  font-weight: 700;
}

.topic-author-role,
.topic-slug-tag {
  font-size: 0.76rem;
  color: var(--text-dim);
}

.topic-content-section,
.topic-articles-section,
.topic-related-section,
.topics-index-grid-section {
  padding: 0 0 36px;
}

.topic-content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(280px, 0.9fr);
  gap: 18px;
}

.topic-main-card,
.topic-side-card,
.topic-placeholder-card,
.topic-related-card,
.topics-index-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.18);
}

.topic-main-card,
.topic-side-card {
  padding: 28px;
}

.topic-section-title {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  font-weight: 400;
  line-height: 1.12;
  margin-bottom: 16px;
}

.topic-main-card p,
.topic-section-head p,
.topic-placeholder-card p,
.topic-related-card p,
.topics-index-card p {
  color: var(--text-mid);
  line-height: 1.8;
}

.topic-callout {
  margin-top: 24px;
  padding: 18px 20px;
  border-left: 3px solid var(--accent);
  border-radius: 0 14px 14px 0;
  background: rgba(255,255,255,0.03);
}

.topic-callout p {
  margin: 0;
}

.topic-facts {
  list-style: none;
  display: grid;
  gap: 16px;
}

.topic-facts li {
  display: grid;
  gap: 6px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.topic-facts li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.topic-facts span,
.topics-index-path,
.topic-placeholder-pill,
.topics-index-headline {
  font-size: 0.72rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.topic-facts span,
.topics-index-path {
  color: var(--text-dim);
}

.topic-facts strong {
  font-size: 0.95rem;
  line-height: 1.5;
}

.topic-section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.topic-section-head p {
  max-width: 520px;
}

.topic-placeholder-grid,
.topic-related-grid,
.topics-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.topic-placeholder-card,
.topic-related-card,
.topics-index-card {
  padding: 24px;
}

.topic-placeholder-pill {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--accent);
  font-weight: 700;
}

.topic-placeholder-card h3,
.topic-related-card h3,
.topics-index-card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.topic-related-card,
.topics-index-card {
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.topic-related-card:hover,
.topics-index-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-2);
  box-shadow: 0 18px 42px rgba(0,0,0,0.26);
}

.topic-related-icon,
.topics-index-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(255,255,255,0.06);
  font-size: 1.6rem;
  margin-bottom: 14px;
}

.topic-related-link,
.topics-index-link {
  display: inline-flex;
  margin-top: 14px;
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 700;
}

.topics-index-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
}

.topics-index-headline {
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 10px;
}

code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.86em;
  color: var(--text);
}

.topic-section-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
}

.topic-article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.topic-article-card,
.topic-empty-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.18);
}

.topic-article-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.topic-article-thumb {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 22px 22px 0 0;
}

.topic-article-body,
.topic-empty-card {
  padding: 22px;
}

.topic-article-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 0.72rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.topic-article-type {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(96,165,250,0.12);
  color: var(--accent);
}

.topic-article-body h3,
.topic-empty-card h3 {
  font-size: 1.08rem;
  margin-bottom: 10px;
}

.topic-article-body p,
.topic-empty-card p {
  color: var(--text-mid);
  line-height: 1.75;
}

.topic-article-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}

/* When tags are a direct child of the card (outside the anchor),
   add padding so they align with the card body content. */
.topic-article-card > .topic-article-tags {
  padding: 0 22px 22px;
  margin-top: -6px;
}

.topic-article-tags span,
.topic-article-tags a {
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  color: var(--text-mid);
  font-size: 0.75rem;
  text-decoration: none;
  transition: background 0.18s ease, color 0.18s ease;
}

.topic-article-tags a:hover {
  background: rgba(96,165,250,0.18);
  color: #fff;
}

.related-article-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

@media (max-width: 900px) {
  .topic-content-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .topic-shell {
    padding: 0 20px;
  }

  .topic-hero-card,
  .topic-main-card,
  .topic-side-card,
  .topic-placeholder-card,
  .topic-related-card,
  .topics-index-card {
    padding: 22px;
  }

  .topic-hero,
  .topics-index-hero {
    padding-top: 24px;
  }

  .topic-meta-row,
  .topics-index-card-top {
    align-items: flex-start;
    flex-direction: column;
  }
}