body {
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f4f4f4;
    font-family: Arial, sans-serif;
}

.titulo-sombra {
    font-size: 40px;
    color: #333;
    text-shadow: 3px 3px 5px rgba(0, 0, 0, 0.3);
}