/* Reset e configuração básica */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  background-color: #f9f9f9;
  color: #333;
}

/* Container principal */
.container {
  max-width: 800px;
  margin: 40px auto;
  padding: 20px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* Cabeçalhos */
h1,
h2,
h3 {
  color: #000000;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.25rem;
}

/* Parágrafos e listas */
p,
li {
  font-size: 1rem;
  margin-bottom: 0.75em;
}

ul {
  margin-left: 20px;
}

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

th,
td {
  border: 1px solid #ddd;
  padding: 8px;
  text-align: left;
}

th {
  background-color: #e9ecef;
}

/* Links */
a {
  color: #000000;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Botões */
.button {
  display: inline-block;
  padding: 10px 20px;
  margin-top: 1em;
  background-color: #000000;
  color: #fff;
  text-decoration: none;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.button:hover {
  background-color: #333333;
}

/* Rodapé */
.footer {
  text-align: center;
  padding: 20px 0;
  font-size: 0.9rem;
  color: #777;
}

/* Responsividade */
@media (max-width: 600px) {
  .container {
    margin: 20px;
    padding: 15px;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.25rem;
  }
}