/* Styles specific to article pages */
.article-header {
  background: linear-gradient(160deg, #fff 60%, #eff6ff 100%);
  padding: 64px 0 48px;
  border-bottom: 1px solid #e2e8f0;
}

.breadcrumb {
  font-size: .85rem;
  color: #475569;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.breadcrumb a { color: #1d4ed8; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb__sep { color: #cbd5e1; }

.article-tag {
  display: inline-block;
  background: #eff6ff;
  color: #1d4ed8;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 99px;
  margin-bottom: 16px;
}

.article-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.15;
  margin-bottom: 16px;
  max-width: 760px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: .88rem;
  color: #475569;
  flex-wrap: wrap;
}

.article-meta__item { display: flex; align-items: center; gap: 6px; }

.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
  padding: 56px 0 88px;
}

/* Article body typography */
.article-body { max-width: 720px; }

.article-body h2 {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -.02em;
  margin: 40px 0 14px;
  color: #1e293b;
}

.article-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 28px 0 10px;
  color: #1e293b;
}

.article-body p {
  font-size: 1rem;
  color: #475569;
  line-height: 1.8;
  margin-bottom: 16px;
}

.article-body strong { color: #1e293b; }

.article-body ul, .article-body ol {
  margin: 0 0 16px 0;
  padding-left: 24px;
  color: #475569;
  line-height: 1.8;
}

.article-body li { margin-bottom: 6px; font-size: 1rem; }

.article-body a { color: #1d4ed8; text-decoration: underline; }
.article-body a:hover { color: #1e40af; }

.tip-box {
  background: #eff6ff;
  border-left: 4px solid #1d4ed8;
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  margin: 24px 0;
}
.tip-box p { color: #1e293b; margin: 0; font-size: .95rem; }
.tip-box strong { color: #1d4ed8; }

.warn-box {
  background: #fefce8;
  border-left: 4px solid #ca8a04;
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  margin: 24px 0;
}
.warn-box p { color: #1e293b; margin: 0; font-size: .95rem; }

/* Sidebar */
.article-sidebar { position: sticky; top: 80px; }

.sidebar-cta {
  background: #1d4ed8;
  color: #fff;
  border-radius: 12px;
  padding: 28px 24px;
  margin-bottom: 24px;
}
.sidebar-cta h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.sidebar-cta p { font-size: .88rem; opacity: .85; margin-bottom: 20px; line-height: 1.6; }
.sidebar-cta .btn {
  display: block;
  text-align: center;
  background: #fff;
  color: #1d4ed8;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 700;
  font-size: .9rem;
  text-decoration: none;
}
.sidebar-cta .btn:hover { background: #eff6ff; }

.sidebar-links {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 24px;
}
.sidebar-links h4 { font-size: .9rem; font-weight: 700; margin-bottom: 14px; color: #1e293b; }
.sidebar-links ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.sidebar-links li a {
  font-size: .85rem;
  color: #1d4ed8;
  text-decoration: none;
  line-height: 1.5;
  display: block;
}
.sidebar-links li a:hover { text-decoration: underline; }

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .88rem;
  font-weight: 600;
  color: #1d4ed8;
  margin-bottom: 48px;
}
.back-link:hover { text-decoration: underline; }

@media (max-width: 860px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
}