/* Base */
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  color: #222;
  background: #fff;
}

/* Layout */
.wrapper {
  max-width: 960px;
  margin: 2.5rem auto;
  padding: 0 1.5rem;
}

/* Headings */
h1 {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}
h2 {
  margin-top: 2.5rem;
  border-bottom: 1px solid #ddd;
  padding-bottom: 0.3rem;
}
h3 {
  margin-top: 2rem;
}

/* Text */
p {
  margin: 1rem 0;
}

/* Lists */
ul {
  padding-left: 1.4rem;
}

/* Code */
pre, code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}
pre {
  background: #f6f8fa;
  padding: 1rem;
  overflow-x: auto;
  border-radius: 6px;
}

/* Links */
a {
  color: #0969da;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Horizontal rule */
hr {
  margin: 2.5rem 0;
  border: none;
  border-top: 1px solid #ddd;
}

/* Tables */
table {
  border-collapse: collapse;
  margin: 1.5rem 0;
  width: 100%;
  font-size: 0.95rem;
}

th, td {
  border: 1px solid #ccc;
  padding: 0.5rem 0.75rem;
  text-align: left;
}

th {
  background: #f6f8fa;
  font-weight: 600;
}

tr:nth-child(even) td {
  background: #fafafa;
}