/* Fundo com degrade amarelo e preto */
body {
    margin: 0;
    height: 100vh;
    background: linear-gradient(to bottom, yellow, black);
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, sans-serif;
}

/* Caixa de login centralizada */
.login-container {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
    text-align: center;
}

.login-container input {
    display: block;
    margin: 10px auto;
    padding: 10px;
    width: 80%;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.login-container button {
    padding: 10px 20px;
    background-color: black;
    color: yellow;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

#mensagem {
    margin-top: 10px;
    font-weight: bold;
}