/* Base typography */
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  margin: 2.5rem;
  color: #222;
}

/* Headings */
h1, h2, h3 {
  line-height: 1.25;
  margin-top: 2.2rem;
}

h1 {
  font-size: 2.2rem;
  border-bottom: 3px solid #ddd;
  padding-bottom: 0.3rem;
}

h2 {
  font-size: 1.6rem;
  border-bottom: 1px solid #eee;
}

/* Lists */
ul, ol {
  margin-left: 1.5rem;
}

/* Code blocks */
pre {
  background: #f6f8fa;
  padding: 1rem;
  overflow-x: auto;
  border-radius: 6px;
}

code {
  background: #f6f8fa;
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
}

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

th, td {
  border: 1px solid #ddd;
  padding: 0.6rem;
}

th {
  background: #f0f0f0;
  text-align: left;
}

/* Links */
a {
  color: #0066cc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Print tweaks (PDF) */
@media print {
  body {
    margin: 1.5cm;
  }
}