body {
  max-width: 800px;
  margin: 0 auto;
  padding: 16px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: #222;
  background: #fff;
}

header {
  border-bottom: 2px solid #00add8;
  margin-bottom: 24px;
}

header .logo {
  font-size: 1.5em;
  font-weight: bold;
  color: #00add8;
  text-decoration: none;
}

nav a {
  margin-right: 16px;
  color: #007d9c;
}

nav {
  padding: 8px 0;
}

h1, h2 {
  color: #00758d;
}

a {
  color: #007d9c;
}

pre {
  background: #f4f4f4;
  border-left: 3px solid #00add8;
  padding: 12px;
  overflow-x: auto;
}

code {
  font-family: Consolas, Menlo, monospace;
  font-size: 0.95em;
}

footer {
  border-top: 1px solid #ddd;
  margin-top: 40px;
  padding-top: 8px;
  font-size: 0.85em;
  color: #777;
}