/* ===== estilo.css ===== */
/* vibe: RTFM / README de 486 — limpo, legível e sem frescura */

body {
  background-color: #f9f9f9;
  color: #111;
  font-family: "Courier New", Courier, monospace;
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

header {
  text-align: center;
  padding: 10px 0;
  border-bottom: 2px solid #000;
}

pre code {
  display: inline-block;
  text-align: left;
  background: #eee;
  padding: 8px 12px;
  border: 1px solid #aaa;
  font-size: 14px;
  line-height: 1.4;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 10px 0;
  display: flex;
  justify-content: center;
  gap: 20px;
}

nav ul li a {
  text-decoration: none;
  color: #004080;
  font-weight: bold;
  padding: 2px 6px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

nav ul li a:hover {
  border: 1px solid #004080;
  background-color: #e0e0e0;
}

main {
  max-width: 800px;
  margin: 30px auto;
  padding: 0 20px;
  background-color: #fff;
  border: 1px solid #ddd;
}

h1, h2, h3 {
  border-bottom: 1px solid #ccc;
  padding-bottom: 4px;
}

blockquote {
  border-left: 3px solid #999;
  padding-left: 10px;
  color: #444;
  font-style: italic;
  margin: 15px 0;
}

footer {
  text-align: center;
  border-top: 1px solid #000;
  padding: 10px;
  font-size: 14px;
  color: #555;
  background: #f0f0f0;
}