body {
    background-color: #000000; /* cor amarela de fundo */
    color: #000000; /* texto preto */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.caixa-principal {
    background-color: #962626;
    width: 90%;
    max-width: 600px;
    text-align: center;
    padding: 20px;
    border-radius: 10px; 
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.2);
}

h1 {
    color: #000000;
}

button {
    background-color: #000000;
    color: #ffffff;
    border: none;
    border-radius: 15px;
    padding: 15px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #292727;
    color: #ffffff;
}