body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f9f9f9;
  color: #333;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

nav {
  margin-bottom: 2em;
  background-color: #e8f0f8;
  padding: 0.5em 1em;
  border-radius: 8px;
}

nav .menu {
  list-style: none;
  display: flex;
  gap: 1.5em;
  margin: 0;
  padding: 0;
}

nav .menu li {
  display: inline;
}

nav .menu a {
  text-decoration: none;
  font-weight: bold;
  color: #004477;
}
nav .menu a:hover {
  text-decoration: underline;
}


.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 2em;
  background-color: #ffffff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
}

header {
  text-align: center;
  padding-bottom: 1em;
  border-bottom: 2px solid #ddd;
}

h1 {
  font-size: 2em;
  color: #004466;
  margin-bottom: 0.2em;
}

.subtitulo {
  font-size: 1.1em;
  color: #666;
}

section {
  margin-top: 2em;
}

h2 {
  font-size: 1.5em;
  color: #003344;
  margin-bottom: 0.5em;
}

h3 {
  font-size: 1.2em;
  color: #005577;
  margin-top: 1em;
}

ul {
  list-style: disc inside;
  margin-left: 1em;
}

code {
  background-color: #eef;
  padding: 0.1em 0.3em;
  border-radius: 3px;
  font-family: monospace;
  color: #004;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1em;
}

table, th, td {
  border: 1px solid #ccc;
}

th, td {
  padding: 0.5em;
  text-align: left;
}

th {
  background-color: #eef;
  color: #003344;
}

a {
  color: #0055aa;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}