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

body {
  background-color: #000; /* fundo preto */
  font-family: Arial, sans-serif;
  color: #fff; /* texto branco */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.conteudo {
  flex: 1;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  padding: 60px 20px 80px;
}

h1 {
  font-size: 56px;
  font-weight: bold;
  margin-bottom: 25px;
}

.subtitulo {
  font-size: 20px;
  font-style: italic;
  color: #ccc; /* cinzento claro para contraste */
  margin-bottom: 30px;
}

.caixa-imagem img {
  width: 100%;
  max-width: 760px;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
}

footer {
  background-color: #111; /* ligeiramente mais claro que o fundo */
  color: #fff;
  text-align: center;
  padding: 35px 20px;
}

footer p {
  font-size: 18px;
  font-weight: bold;
  margin: 12px 0;
}