/* Blog module styles. Shares the homepage tokens from css/style.css. */

main.blog-shell,
main.blog-post-shell {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 30px;
  display: block;
}

.blog-header {
  max-width: 820px;
  margin-bottom: 30px;
}

.blog-kicker {
  margin: 0 0 8px;
  color: var(--accent-strong);
  font-size: 0.84rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.blog-header h1,
.post-header h1 {
  margin: 0 0 12px;
  color: var(--text);
  font-size: 2.2rem;
  font-weight: 900;
}

.blog-header p,
.blog-side-section p,
.post-meta,
.post-summary,
.empty-state {
  color: var(--text-secondary);
}

.blog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 44px;
  align-items: start;
}

.blog-toolbar {
  display: grid;
  grid-template-columns: minmax(240px, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.blog-tag-filter,
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-chip {
  min-height: 30px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  color: var(--text-secondary);
  background: var(--surface);
  box-shadow: var(--glass-highlight);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 800;
  cursor: pointer;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.tag-chip:hover,
.tag-chip.active {
  color: var(--accent-strong);
  border-color: var(--line-strong);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

.post-list {
  display: grid;
  gap: 14px;
}

.post-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  color: inherit;
  background: var(--surface);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  box-shadow: var(--shadow-sm), var(--glass-highlight);
  overflow: hidden;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
}

.post-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.54), transparent 38%, rgba(255, 255, 255, 0.1) 76%, transparent);
  opacity: 0.65;
}

[data-theme="dark"] .post-card::before {
  opacity: 0.16;
}

.post-card:hover {
  color: inherit;
  transform: translateY(-5px);
  border-color: var(--line-strong);
  background: var(--surface-strong);
  box-shadow: var(--shadow-md), var(--glass-highlight);
}

.post-card > * {
  position: relative;
  z-index: 1;
}

.post-card-title {
  margin: 0;
  color: var(--text);
  font-size: 1.16rem;
  font-weight: 900;
  line-height: 1.4;
}

.post-card-meta,
.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
  font-size: 0.86rem;
  font-weight: 700;
}

.post-card-summary {
  margin: 0;
  color: var(--text-secondary);
}

.post-card-tags,
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.post-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border-radius: var(--radius-control);
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-size: 0.76rem;
  font-weight: 800;
}

.blog-sidebar,
.toc-panel {
  position: sticky;
  top: 92px;
}

.blog-side-section,
.toc-panel {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.blog-side-section h2,
.toc-panel h2 {
  margin: 0 0 12px;
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 900;
}

.blog-side-section code {
  color: var(--accent-strong);
  font-size: 0.88em;
}

.empty-state {
  padding: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-weight: 700;
}

main.blog-post-shell {
  display: grid;
  grid-template-columns: minmax(0, 820px) 240px;
  gap: 54px;
  align-items: start;
}

.post-article {
  min-width: 0;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 800;
}

.back-link:hover {
  color: var(--accent-strong);
}

.post-header {
  padding-bottom: 24px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.post-summary {
  margin: 12px 0 0;
  font-size: 1rem;
}

.markdown-content {
  color: var(--text);
  font-size: 1rem;
  line-height: 1.78;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
  color: var(--text);
  font-weight: 900;
  scroll-margin-top: 84px;
}

.markdown-content h1 {
  margin: 34px 0 12px;
  font-size: 1.72rem;
}

.markdown-content h2 {
  margin: 32px 0 12px;
  padding-top: 4px;
  font-size: 1.38rem;
}

.markdown-content h3 {
  margin: 26px 0 10px;
  font-size: 1.12rem;
}

.markdown-content p,
.markdown-content ul,
.markdown-content ol,
.markdown-content blockquote,
.markdown-content pre,
.markdown-content table,
.markdown-content figure {
  margin-bottom: 18px;
}

.markdown-content a {
  color: var(--accent-strong);
  border-bottom: 1px solid var(--accent-soft);
}

.markdown-content a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.markdown-content code {
  padding: 0.14em 0.34em;
  border-radius: 4px;
  color: var(--warm);
  background: var(--warm-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.9em;
}

.markdown-content pre {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--glass-highlight);
  overflow-x: auto;
}

.markdown-content pre code {
  padding: 0;
  color: inherit;
  background: transparent;
  font-size: 0.88rem;
}

.markdown-content blockquote {
  padding: 2px 0 2px 18px;
  border-left: 3px solid var(--line-strong);
  color: var(--text-secondary);
}

.markdown-content .callout {
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--glass-highlight);
}

.markdown-content .callout-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--accent-strong);
  font-weight: 900;
}

.markdown-content .callout-tip {
  border-left-color: var(--gold);
}

.markdown-content .callout-tip .callout-title {
  color: var(--gold);
}

.markdown-content .callout-warning,
.markdown-content .callout-caution {
  border-left-color: var(--warm);
}

.markdown-content .callout-warning .callout-title,
.markdown-content .callout-caution .callout-title {
  color: var(--warm);
}

.markdown-content img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 22px auto 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface-soft);
  box-shadow: var(--shadow-sm);
}

.markdown-content .math-display {
  max-width: 100%;
  margin: 22px 0;
  text-align: center;
  overflow-x: auto;
  overflow-y: hidden;
}

.markdown-content .math-display mjx-container[jax="CHTML"] {
  display: inline-block;
  min-width: max-content;
  margin: 0 auto;
  padding: 4px 0;
  text-align: initial;
}

.markdown-content mjx-container[jax="CHTML"][display="true"] {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  margin-left: auto;
  margin-right: auto;
  padding: 4px 0;
}

.markdown-content mjx-container {
  color: var(--text);
}

.markdown-content table {
  width: 100%;
  border-collapse: collapse;
  display: block;
  overflow-x: auto;
}

.markdown-content th,
.markdown-content td {
  padding: 10px 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.markdown-content th {
  color: var(--text);
  background: var(--accent-soft);
  font-weight: 900;
}

.toc-panel nav {
  display: grid;
  gap: 4px;
}

.toc-panel a {
  position: relative;
  display: block;
  padding: 6px 8px 6px 14px;
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 0.86rem;
  font-weight: 700;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.toc-panel a::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 0;
  width: 3px;
  border-radius: 999px;
  background: transparent;
  transition: background var(--dur) var(--ease);
}

.toc-panel a:hover {
  color: var(--accent-strong);
}

.toc-panel a.active {
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.toc-panel a.active::before {
  background: var(--accent);
}

.toc-panel .toc-h3 {
  padding-left: 26px;
  font-size: 0.82rem;
}

.blog-footer {
  padding-left: 24px;
}

@media (max-width: 980px) {
  .blog-layout,
  main.blog-post-shell {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .blog-sidebar,
  .toc-panel {
    position: static;
  }

  .toc-panel {
    display: none;
  }
}

@media (max-width: 560px) {
  main.blog-shell,
  main.blog-post-shell {
    padding: 30px 18px 24px;
  }

  .blog-header h1,
  .post-header h1 {
    font-size: 1.72rem;
  }

  .post-card {
    padding: 18px;
  }
}