.sub-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 48px 24px;
  color: #fff;
  text-align: center;
}

.sub-hero h1 {
  color: #fff;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  max-width: 800px;
  margin: 0 auto 12px;
}

.sub-hero p {
  max-width: 640px;
  margin: 0 auto;
  opacity: 0.9;
  font-size: 1.05rem;
}

.article-split {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px;
}

.article-sidebar {
  position: sticky;
  top: 80px;
  align-self: start;
}

.sidebar-nav {
  background: var(--surface);
  border-radius: var(--cozy-radius);
  padding: 24px;
  border: 1px solid var(--border);
}

.sidebar-nav h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 16px;
}

.sidebar-nav a {
  display: block;
  padding: 8px 0;
  font-size: 14px;
  color: var(--primary);
  border-bottom: 1px solid var(--border);
}

.sidebar-nav a:last-child {
  border-bottom: none;
}

.article-body h2 {
  font-size: 1.5rem;
  margin: 32px 0 16px;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body p {
  color: var(--muted);
  margin-bottom: 16px;
}

.article-body ul {
  margin-bottom: 16px;
  padding-left: 1.5rem;
  color: var(--muted);
}

.article-body li {
  margin-bottom: 8px;
}

.article-img {
  max-width: 480px;
  max-height: 300px;
  border-radius: var(--cozy-radius);
  margin: 24px 0;
  object-fit: cover;
  box-shadow: var(--soft-shadow);
}

.pull-quote {
  background: var(--warm-beige);
  padding: 24px 28px;
  border-radius: var(--cozy-radius);
  border-left: 4px solid var(--accent);
  font-family: var(--font-serif);
  font-style: italic;
  margin: 24px 0;
  color: var(--text);
}

@media (max-width: 768px) {
  .article-split {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }

  .article-img {
    max-width: 100%;
  }
}

@media (max-width: 375px) {
  .article-split {
    overflow-x: hidden;
  }

  .article-img {
    max-width: 100%;
    max-height: 220px;
  }
}