.markdown h1,
.markdown h2,
.markdown h3,
.markdown h4 {
  margin-top: 1.6em;
  margin-bottom: 0.8em;
  line-height: 1.3;
  font-weight: 600;
  color: var(--text);
}

.markdown h1 {
  font-size: 26px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3em;
}

.markdown h2 {
  font-size: 20px;
}

.markdown h3 {
  font-size: 17px;
}

.markdown p,
.markdown li {
  line-height: 1.8;
  margin-bottom: 0.8em;
  color: #374151;
}

.markdown ul,
.markdown ol {
  padding-left: 1.4em;
}

.markdown pre {
  background: #f5f8f8;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  overflow: auto;
}

.markdown code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.markdown pre code {
  background: transparent;
  padding: 0;
}

.markdown :not(pre) > code {
  background: #f5f8f8;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}

.markdown img,
.markdown svg,
.markdown canvas {
  max-width: 100%;
  height: auto;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.markdown .katex-display {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 2px;
  margin: 1.1em 0;
}

.markdown .katex-display > .katex {
  display: inline-block;
  min-width: max-content;
}

.markdown table {
  border-collapse: collapse;
  width: max-content;
  min-width: min(100%, 600px);
}

.markdown th,
.markdown td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

.markdown th {
  background: #f5f8f8;
  font-weight: 600;
}

.markdown blockquote {
  margin: 14px 0;
  padding: 4px 14px;
  border-left: 3px solid var(--border-strong);
  color: var(--muted);
  background: #f5f8f8;
  border-radius: 0 4px 4px 0;
}

.markdown a {
  color: var(--accent);
  text-decoration: none;
}

.markdown a:hover {
  text-decoration: underline;
}

.markdown img {
  display: block;
  width: min(100%, 960px);
  margin: 14px auto;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
}

.frontmatter-card {
  margin-bottom: 18px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #f8fafc;
}

.frontmatter-title {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.3;
  font-weight: 600;
  color: #334155;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.frontmatter-grid {
  margin: 0;
}

.frontmatter-row {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 8px 10px;
  align-items: start;
  margin: 0;
  padding: 6px 0;
  border-top: 1px dashed #dbe2ea;
}

.frontmatter-row:first-child {
  border-top: none;
  padding-top: 0;
}

.frontmatter-row:last-child {
  padding-bottom: 0;
}

.frontmatter-row dt {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  color: #64748b;
  overflow-wrap: anywhere;
}

.frontmatter-row dd {
  margin: 0;
  min-width: 0;
  color: #334155;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.frontmatter-value {
  display: inline;
}

.frontmatter-empty {
  color: #94a3b8;
}

.frontmatter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.frontmatter-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid #d5dee8;
  background: #fff;
  color: #334155;
  font-size: 12px;
  line-height: 1.5;
  text-decoration: none;
}

.frontmatter-tag.is-link {
  border-color: #bfdbfe;
  color: #1d4ed8;
}

.frontmatter-tag.is-link:hover {
  background: #eff6ff;
}

.frontmatter-card.is-raw .frontmatter-raw {
  margin: 0;
  padding: 10px;
  border-radius: 8px;
  background: #fff;
}

@media (max-width: 720px) {
  .frontmatter-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

.table-scroll,
.diagram-scroll {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  margin: 14px 0;
  padding-bottom: 4px;
}

.diagram-scroll > .mermaid,
.diagram-scroll > svg,
.diagram-scroll > canvas {
  display: block;
  min-width: max-content;
}