body {
  background-image: url("img/matrix-code.gif");
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-position: center;
  color: #00ff00;
  font-family: 'Courier New', monospace;
  margin: 0;
  padding: 0;
}


header, section, footer {
  background-color: rgba(0, 0, 0, 0.7); /* fundo escurecido p/ contraste */
  padding: 40px 20px;
  text-align: center;
}

h1 {
  font-size: 40px;
  margin-bottom: 10px;
}

h2 {
  font-size: 28px;
  margin-bottom: 20px;
}

ul {
  list-style: none;
  padding: 0;
  font-size: 18px;
  line-height: 1.8;
}

.destaque {
  color: #fff;
  font-size: 20px;
  margin-top: 20px;
}

.botao {
  background-color: #00ff00;
  color: #000;
  padding: 15px 30px;
  text-decoration: none;
  font-weight: bold;
  border-radius: 10px;
  font-size: 20px;
  display: inline-block;
  margin: 20px 0;
}

footer {
  background-color: rgba(0, 0, 0, 0.7);
  font-size: 14px;
}

hr {
  width: 60%;
  border-color: #00ff00;
  margin: 20px auto;
}