body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  color: #111;
  background: #fff;
}
.site-shell {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}
.site-header {
  padding: 2rem 0 1rem;
  border-bottom: 1px solid #e6e6e6;
}
.site-title {
  display: inline-block;
  font-size: 2rem;
  font-weight: 700;
  text-decoration: none;
  color: #111;
}
.site-description {
  margin: 0.3rem 0 0;
  color: #555;
}
.site-nav {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.site-nav a {
  color: #0366d6;
  text-decoration: none;
}
.site-nav a:hover {
  text-decoration: underline;
}
.site-content {
  padding: 2rem 0;
}
.site-footer {
  padding: 2rem 0 1rem;
  border-top: 1px solid #e6e6e6;
  color: #555;
  font-size: 0.95rem;
}
.page-intro {
  margin-bottom: 2rem;
}
.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.post-list-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid #eee;
}
.post-meta {
  margin: 0.5rem 0 1rem;
  color: #666;
  font-size: 0.95rem;
}
.post-author {
  margin: 0.5rem 0 0;
  color: #555;
  font-size: 0.95rem;
}
.post-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid #eee;
}
a {
  color: #0366d6;
}
a:hover {
  text-decoration: underline;
}
@media (max-width: 700px) {
  .site-shell { padding: 0 1rem; }
  .site-nav { gap: 0.75rem; }
}