body {
  font-family: system-ui, -apple-system, sans-serif;
  max-width: 800px;
  margin: 40px auto;
  padding: 0 20px;
  line-height: 1.6;
  color: #222;
}

h1 { margin-bottom: 0.25em; }
h2 { margin-top: 2em; }
h3 { margin-top: 1.5em; font-size: 1em; }

table {
  border-collapse: collapse;
  width: 100%;
}

th, td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid #ddd;
}

th {
  font-weight: 600;
  border-bottom: 2px solid #aaa;
}

.r {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

a { color: #0366d6; }
a:hover { text-decoration: none; }

code {
  background: #f4f4f4;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.9em;
}

pre {
  background: #f4f4f4;
  padding: 16px;
  border-radius: 6px;
  overflow-x: auto;
  line-height: 1.4;
}

pre code {
  background: none;
  padding: 0;
}