/* Blog stylesheet - reading-focused layout */
*,*::before,*::after { box-sizing: border-box; }

body {
  font-family: Georgia, 'Times New Roman', serif;
  color: #1a1a1a;
  background: #fefefe;
  margin: 0;
  padding: 0;
  line-height: 1.7;
  opacity: 1;
}

/* Header */
.blog-header {
  border-bottom: 1px solid #eaeaea;
  padding: 1rem 0;
}
.blog-header-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.blog-title {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: #1a1a1a;
  text-decoration: none;
}
.blog-title:hover { color: #2563eb; }
.blog-nav a {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 0.9rem;
  color: #666;
  text-decoration: none;
  margin-left: 1.5rem;
}
.blog-nav a:hover { color: #2563eb; }

/* Main content area */
.blog-main {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Footer */
.blog-footer {
  border-top: 1px solid #eaeaea;
  padding: 1.5rem 0;
  margin-top: 3rem;
}
.blog-footer-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.5rem;
  text-align: center;
}
.blog-footer p {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 0.8rem;
  color: #999;
  margin: 0;
}
.blog-footer a { color: #999; text-decoration: none; }
.blog-footer a:hover { color: #2563eb; }

/* Blog index */
.blog-tag-header { margin-bottom: 2rem; }
.blog-tag-header h1 {
  font-size: 1.5rem;
  margin: 0 0 0.5rem;
  font-weight: 600;
}
.blog-tag-clear {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 0.85rem;
  color: #2563eb;
  text-decoration: none;
}
.blog-tag-clear:hover { text-decoration: underline; }

.blog-post-list { display: flex; flex-direction: column; gap: 2.5rem; }

.blog-post-card { border-bottom: 1px solid #f0f0f0; padding-bottom: 2rem; }
.blog-post-card:last-child { border-bottom: none; }
.blog-post-card-title {
  font-size: 1.4rem;
  margin: 0 0 0.4rem;
  line-height: 1.3;
}
.blog-post-card-title a {
  color: #1a1a1a;
  text-decoration: none;
}
.blog-post-card-title a:hover { color: #2563eb; }

.blog-post-card-meta {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 0.85rem;
  color: #888;
  margin-bottom: 0.6rem;
}
.blog-post-card-author { margin-left: 0.5rem; }

.blog-post-card-excerpt {
  font-size: 1rem;
  color: #444;
  margin: 0 0 0.8rem;
  line-height: 1.6;
}

.blog-post-card-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

/* Tags */
.blog-tag {
  font-family: system-ui, -apple-system, sans-serif;
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  background: #f3f4f6;
  color: #555;
  border-radius: 3px;
  text-decoration: none;
  white-space: nowrap;
}
.blog-tag:hover { background: #e5e7eb; color: #2563eb; }
.blog-tag-count {
  font-size: 0.7rem;
  color: #999;
  margin-left: 0.2rem;
}

/* Empty state */
.blog-empty {
  text-align: center;
  padding: 4rem 0;
  color: #999;
}
.blog-empty p { font-size: 1.1rem; }

/* Tags cloud (sidebar-like section at bottom of index) */
.blog-tags-cloud {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #eaeaea;
}
.blog-tags-cloud h3 {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: #666;
  margin: 0 0 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.blog-tags-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* Individual blog post */
.blog-post-header { margin-bottom: 2rem; }
.blog-post-title {
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 0.6rem;
  font-weight: 700;
}
.blog-post-meta {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 0.9rem;
  color: #888;
  margin-bottom: 0.8rem;
}
.blog-post-author { margin-left: 0.5rem; }
.blog-post-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.blog-post-body {
  font-size: 1.05rem;
  line-height: 1.8;
}
.blog-post-body h1 { font-size: 1.6rem; margin: 2rem 0 1rem; }
.blog-post-body h2 { font-size: 1.35rem; margin: 1.8rem 0 0.8rem; }
.blog-post-body h3 { font-size: 1.15rem; margin: 1.5rem 0 0.6rem; }
.blog-post-body p { margin: 0 0 1.2rem; }
.blog-post-body a { color: #2563eb; text-decoration: underline; }
.blog-post-body a:hover { color: #1d4ed8; }
.blog-post-body img { max-width: 100%; height: auto; border-radius: 4px; }
.blog-post-body blockquote {
  margin: 1.5rem 0;
  padding: 0.5rem 1.2rem;
  border-left: 3px solid #e5e7eb;
  color: #555;
  font-style: italic;
}
.blog-post-body code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.9em;
  background: #f5f5f5;
  padding: 0.15rem 0.35rem;
  border-radius: 3px;
}
.blog-post-body pre {
  background: #f8f8f8;
  border: 1px solid #eee;
  border-radius: 6px;
  padding: 1rem 1.2rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}
.blog-post-body pre code {
  background: none;
  padding: 0;
  font-size: 0.85rem;
}
.blog-post-body ul, .blog-post-body ol {
  margin: 0 0 1.2rem;
  padding-left: 1.5rem;
}
.blog-post-body li { margin-bottom: 0.3rem; }
.blog-post-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}
.blog-post-body th, .blog-post-body td {
  border: 1px solid #e5e7eb;
  padding: 0.5rem 0.8rem;
  text-align: left;
}
.blog-post-body th { background: #f9fafb; font-weight: 600; }
.blog-post-body hr {
  border: none;
  border-top: 1px solid #eaeaea;
  margin: 2rem 0;
}

/* Drawing embeds in blog posts */
.drawing-svg-preview { overflow: hidden; text-align: center; }
.drawing-svg-preview svg { display: inline-block; max-width: 100%; height: auto; background: #fefefe !important; }
.drawing-svg-preview svg rect[style] { fill: #fefefe !important; }
.drawing-embed-title { font-family: system-ui, sans-serif; font-size: 0.85rem; color: #888; margin: 0.3rem 0 1rem; text-align: center; font-weight: 500; }
.drawing-embed-missing { background: #f9f9f9; border: 1px dashed #ccc; border-radius: 8px; padding: 2rem; text-align: center; }
.drawing-missing-msg { color: #999; font-style: italic; }

/* Post navigation */
.blog-post-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #eaeaea;
  gap: 1rem;
}
.blog-nav-link {
  text-decoration: none;
  max-width: 48%;
}
.blog-nav-label {
  font-family: system-ui, -apple-system, sans-serif;
  display: block;
  font-size: 0.75rem;
  color: #999;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
}
.blog-nav-title {
  display: block;
  font-size: 0.95rem;
  color: #2563eb;
  font-weight: 500;
}
.blog-nav-link:hover .blog-nav-title { text-decoration: underline; }
.blog-nav-next { text-align: right; margin-left: auto; }

/* Pagination */
.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid #eaeaea;
  font-family: system-ui, -apple-system, sans-serif;
}
.blog-page-link {
  font-size: 0.9rem;
  color: #2563eb;
  text-decoration: none;
}
.blog-page-link:hover { text-decoration: underline; }
.blog-page-info {
  font-size: 0.85rem;
  color: #999;
}

/* Responsive */
@media (max-width: 640px) {
  .blog-main { padding: 1.5rem 1rem; }
  .blog-header-inner { padding: 0 1rem; }
  .blog-post-title { font-size: 1.5rem; }
  .blog-post-card-title { font-size: 1.2rem; }
  .blog-post-body { font-size: 1rem; }
  .blog-post-nav { flex-direction: column; }
  .blog-nav-link { max-width: 100%; }
  .blog-nav-next { text-align: left; }
}