/* Fonte moderna */
body {
  
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: #1f2933;
  line-height: 1.6;
  margin: 0 auto;
  max-width: 1000px;
  padding: 40px;
}

/* Títulos */
h1, h2, h3, h4 {
  color: #0f172a;
  margin-top: 2em;
}

/* Links */
a {
  color: #2563eb;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Blocos */
pre, code {
  background: #e5e7eb;
  padding: 4px 6px;
  border-radius: 6px;
}

/* Seções */
.section {
  background: white;
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}