body {
  font-family: system-ui, sans-serif;
  max-width: 720px;
  margin: 2rem auto;
  padding: 0 1rem;
  background: #fafafa;
  color: #333;
  line-height: 1.6;
}

nav,footer {
  margin: 1rem 0;
}

h1, h2, h3, h4, h5, h6 {
  color: #222;
  font-weight: bold;
  margin-top: 3rem;
  margin-bottom: 0.8rem;
  line-height: 1.5;
}

h1 {
  border-bottom: 2px solid #ddd;
}

code {
  background: #f0f0f0;
  padding: 0.1rem 0.3rem;
  border-radius: 4px;
  font-size: 0.9rem;
}

pre {
  background: #0d1117;
  padding: 1rem;
  overflow-x: auto;
  border-radius: 8px;
}

pre > code {
  background: none;
  padding: 0;
  color: #c9d1d9;
}

a {
  color: #0066cc;
}


ul, ol {
  margin: 1rem 0;
  padding-left: 2rem;
}

li {
  margin-bottom: 0.8rem;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  margin-bottom: 1.5rem;
}

table {
  width: 100%;
  margin-bottom: 1.5rem;
  border-collapse: collapse;
}

table, th, td {
  border: 1px solid #ccc;
}

th, td {
  padding: 0.8rem;
  text-align: left;
}

th {
  background: #eee;
}

hr {
  margin: 1rem 0;
  border: none;
  height: 0;
  border-top: 1px solid #ccc;
}