/* ==========================================================================
   ToolNova Blog & Article Styles
   ========================================================================== */

.blog-hero {
  padding: 3.5rem 0 2.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin: 3rem 0;
}

@media (min-width: 1024px) {
  .article-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
  }
}

.article-header {
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
}

.article-category {
  display: inline-block;
  margin-bottom: 1rem;
}

.article-title {
  font-size: 2.5rem;
  line-height: 1.2;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.article-author {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--text-main);
}
.author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.toc-box {
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 2rem 0;
}
.toc-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.9375rem;
}
.toc-list li a {
  color: var(--text-muted);
  text-decoration: none;
}
.toc-list li a:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* Rich Article Prose */
.article-content {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: #334155;
}
.article-content p {
  margin-bottom: 1.5rem;
}
.article-content h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.015em;
  margin: 2.75rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.article-content h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 2rem 0 0.75rem;
}
.article-content ul, .article-content ol {
  margin: 1.25rem 0 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--bg-page);
  padding: 1rem 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.75rem 0;
  font-style: italic;
  color: #475569;
}
.article-content pre {
  background: #0f172a;
  color: #f8fafc;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  margin: 1.5rem 0;
}
.article-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-page);
  border: 1px solid var(--border);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  color: #d946ef;
}

/* In-Article Tool Callout Box */
.tool-callout {
  background: linear-gradient(135deg, #eff6ff 0%, #f5f3ff 100%);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin: 2.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.tool-callout-text h4 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1e3a8a;
  margin-bottom: 0.35rem;
}
.tool-callout-text p {
  margin-bottom: 0;
  font-size: 0.9375rem;
  color: #3b82f6;
}

/* Author Box */
.author-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 3.5rem 0 2rem;
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.author-box-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}
.author-box-info h4 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}
.author-box-info p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 0;
}

/* Blog Sidebar */
.blog-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.sidebar-widget {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.sidebar-widget-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.sidebar-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.sidebar-link-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.sidebar-link-item a {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-main);
}
.sidebar-link-item a:hover {
  color: var(--primary);
}
.sidebar-link-item span {
  font-size: 0.75rem;
  color: var(--text-muted);
}