:root {
  color-scheme: light dark;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 16px;
}
.site-header {
  border-bottom: 1px solid #e6e6e6;
}
.brand {
  font-weight: 600;
  text-decoration: none;
  padding: 12px 0;
  display: inline-block;
}
.nav a {
  margin-left: 12px;
  text-decoration: none;
}
.page-title {
  margin: 16px 0 8px;
}
.muted {
  color: #666;
  margin: 0 0 16px;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.card {
  display: block;
  border: 1px solid #e6e6e6;
  border-radius: 12px;
  padding: 16px;
  text-decoration: none;
  color: inherit;
}
.card:hover {
  border-color: #bbb;
}
.card h2 {
  margin: 0 0 6px;
  font-size: 18px;
}
.card p {
  margin: 0;
  font-size: 14px;
  color: #444;
}