/* Blog-specific styles extending main theme */

/* Blog listing page */
.blog-hero {
  padding: 10rem 2rem 4rem;
  text-align: center;
  position: relative;
}
.blog-hero::before {
  content: '';
  position: absolute; top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at 50% 30%, rgba(108,245,194,0.05) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 60%, rgba(192,132,252,0.03) 0%, transparent 50%);
  pointer-events: none;
}
.blog-hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -1.5px;
  margin-bottom: 1rem;
}
.blog-hero h1 span {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.blog-hero p {
  color: var(--text-dim);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto;
}

/* Blog grid */
.blog-grid {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem 6rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}
.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(108,245,194,0.08);
}
.blog-card-cover {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.blog-card-cover svg {
  width: 100%;
  height: 100%;
}
.blog-card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.blog-card-num {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}
.blog-card-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}
.blog-card-body p {
  color: var(--text-dim);
  font-size: 0.88rem;
  line-height: 1.6;
  flex: 1;
}
.blog-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}
.blog-tag {
  background: var(--accent-dim);
  color: var(--accent);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.72rem;
  font-weight: 600;
}
.blog-tag.purple { background: rgba(192,132,252,0.12); color: var(--accent2); }
.blog-tag.blue { background: rgba(96,165,250,0.12); color: var(--accent3); }
.blog-tag.orange { background: rgba(251,146,60,0.12); color: var(--accent4); }
.blog-tag.pink { background: rgba(244,114,182,0.12); color: var(--accent5); }

/* Article page */
.article-wrapper {
  max-width: 820px;
  margin: 0 auto;
  padding: 8rem 2rem 6rem;
}
.wiki-page {
  max-width: 1240px;
  margin: 0 auto;
  padding: 8rem 2rem 6rem;
}
.wiki-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}
.wiki-sidebar {
  position: sticky;
  top: 88px;
}
.wiki-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.wiki-panel h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}
.wiki-panel p {
  font-size: 0.84rem;
  color: var(--text-dim);
  margin-bottom: 0;
}
.wiki-toc {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.wiki-toc a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.84rem;
  line-height: 1.4;
  padding: 0.4rem 0.55rem;
  border-radius: 8px;
  transition: all 0.2s;
}
.wiki-toc a:hover,
.wiki-toc a.active {
  background: var(--accent-dim);
  color: var(--accent);
}
.wiki-toc a.toc-h3 {
  padding-left: 1.2rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.wiki-content {
  min-width: 0;
}
.wiki-content .article-wrapper {
  max-width: none;
  padding: 0;
}
.wiki-loading {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  color: var(--text-dim);
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.article-back {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}
.article-back:hover { color: var(--accent); }
.article-num {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  background: var(--accent-dim);
  padding: 4px 12px;
  border-radius: 20px;
}
.article-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}
.article-wrapper h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.25;
  margin-bottom: 1rem;
}
.article-wrapper .article-subtitle {
  color: var(--text-dim);
  font-size: 1.1rem;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

/* Article content */
.article-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin: 3rem 0 1.2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.article-content h2:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}
.article-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 2rem 0 0.8rem;
  color: var(--accent);
}
.article-content h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}
.article-content p {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.2rem;
}
.article-content strong {
  color: var(--text);
  font-weight: 600;
}
.article-content ul, .article-content ol {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.2rem;
  padding-left: 1.5rem;
}
.article-content li { margin-bottom: 0.4rem; }
.article-content li strong { color: var(--text); }

/* Tables in articles */
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.88rem;
}
.article-content th {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.article-content td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
}
.article-content tr:hover td {
  background: rgba(108,245,194,0.03);
}

/* Code blocks in articles */
.article-content pre {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-dim);
}
.article-content code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent);
}
.article-content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* Blockquotes */
.article-content blockquote {
  border-left: 3px solid var(--accent);
  background: var(--accent-dim);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-dim);
  font-size: 0.92rem;
}
.article-content blockquote strong {
  color: var(--accent);
}

/* Excalidraw-style diagram container */
.sketch-diagram {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin: 2rem 0;
  overflow-x: auto;
  text-align: center;
}
.sketch-diagram svg {
  max-width: 100%;
  height: auto;
}
.sketch-diagram .diagram-caption {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--mono);
  margin-top: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Info cards in articles */
.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
}
.info-card h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}
.info-card.accent-border { border-left: 3px solid var(--accent); }
.info-card.purple-border { border-left: 3px solid var(--accent2); }
.info-card.blue-border { border-left: 3px solid var(--accent3); }
.info-card.orange-border { border-left: 3px solid var(--accent4); }

/* Metric grid */
.metric-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.metric-item {
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  padding: 1rem;
  text-align: center;
}
.metric-item .mv {
  font-family: var(--mono);
  font-size: 1.6rem;
  font-weight: 700;
}
.metric-item .ml {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 0.25rem;
}

/* Article navigation */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.article-nav a {
  display: block;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.2s;
}
.article-nav a:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.article-nav .nav-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.3rem;
}
.article-nav .nav-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}
.article-nav a:last-child { text-align: right; }

/* Responsive */
@media (max-width: 768px) {
  .blog-grid { grid-template-columns: 1fr; }
  .article-wrapper { padding: 6rem 1.25rem 4rem; }
  .article-nav { grid-template-columns: 1fr; }
  .metric-row { grid-template-columns: 1fr 1fr; }
  .wiki-page { padding: 6rem 1.25rem 4rem; }
  .wiki-layout { grid-template-columns: 1fr; }
  .wiki-sidebar { position: static; }
}