body {
  font-family: sans-serif;
  line-height: 1.6;
}

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3 {
  line-height: 1.25;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.markdown-content p,
.markdown-content ul,
.markdown-content pre {
  margin: 0.75rem 0;
}

.markdown-content .video-embed {
  max-width: 640px;
  margin: 1rem auto;
}

.markdown-content .video-embed video {
  display: block;
  width: 100%;
  max-width: 100%;
  border-radius: 6px;
  border: 1px solid #e3e8ee;
  background: #000;
}

.markdown-content .image-embed {
  max-width: 860px;
  margin: 1rem auto;
}

.markdown-content .image-embed img {
  display: block;
  width: 100%;
  max-width: 100%;
  border-radius: 6px;
  border: 1px solid #e3e8ee;
  background: #fff;
}

.markdown-content nav.toc {
  padding: 0.75rem 1rem;
  border: 1px solid #d8dee4;
  border-radius: 6px;
  background: #f7f9fb;
}

.markdown-content nav.toc h2 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
}

.markdown-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.95em;
}

.markdown-content pre {
  overflow-x: auto;
  padding: 0.8rem 1rem;
  border-radius: 6px;
  border: 1px solid #e3e8ee;
  background: #f6f8fa;
}

.markdown-content pre code {
  display: block;
  white-space: pre;
}

.markdown-content .tok-comment {
  color: #6a737d;
}

.markdown-content .tok-keyword {
  color: #005cc5;
  font-weight: 600;
}

.markdown-content .tok-string {
  color: #0a7a34;
}

.markdown-content .tok-number {
  color: #b31d28;
}

.markdown-content .tok-variable {
  color: #6f42c1;
}

.markdown-content .tok-builtin {
  color: #116329;
  font-weight: 600;
}

.footnotes {
  margin-top: 2rem;
  font-size: 0.95em;
}

.footnote-backref {
  margin-left: 0.4rem;
}