/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Fonte e cores */
body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: #f8f9fa;
  color: #333;
  line-height: 1.6;
  padding: 20px;
}

/* Cabeçalho */
header {
  background-color: #007bff;
  color: white;
  padding: 20px;
  border-radius: 8px;
  text-align: center;
  margin-bottom: 20px;
}

/* Navegação */
nav {
  background-color: #e9ecef;
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 20px;
}

nav h2 {
  margin-bottom: 10px;
}

nav ul {
  list-style: none;
  padding-left: 15px;
}

nav ul li {
  margin-bottom: 5px;
}

nav ul li a {
  color: #007bff;
  text-decoration: none;
}

nav ul li a:hover {
  text-decoration: underline;
}

/* Conteúdo principal */
main {
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  margin-bottom: 20px;
}

section {
  margin-bottom: 40px;
}

h2 {
  color: #343a40;
  margin-bottom: 10px;
}

h3 {
  margin-top: 20px;
  color: #495057;
}

p {
  margin-bottom: 15px;
}

blockquote {
  background-color: #f1f1f1;
  border-left: 5px solid #007bff;
  padding: 10px 15px;
  font-style: italic;
  margin: 15px 0;
}

/* Voltar ao topo */
small a {
  display: inline-block;
  margin-top: 10px;
  color: #6c757d;
  font-size: 0.9em;
  text-decoration: none;
}

small a:hover {
  text-decoration: underline;
}

/* Rodapé */
footer {
  padding: 20px;
  border-radius: 8px;
}

footer a {
  color: #007bff;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

ul {
  padding-left: 20px;
}

/* Marcações */
mark {
  background-color: #fff3cd;
  padding: 0 5px;
}

code {
  background-color: #e9ecef;
  padding: 2px 4px;
  border-radius: 4px;
  font-family: monospace;
}