body {
    margin: 0;
    padding: 10px;
    font-family: 'Arial', sans-serif;
    background: #f2f2f2;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Área principal de login */
.login-container {
    background: #ffffff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    width: 80%;
    max-width: 400px;
    text-align: center;
    margin-top: auto;
    margin-bottom: auto;
}

.login-container .logo {
    width: 180px;
    margin-bottom: 20px;
}

.login-container input {
    width: 100%;
    padding: 16px 20px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
    box-sizing: border-box;
    font-size: 1.1rem;
}

.login-container button {
    background-color: #3498db;
    color: white;
    padding: 16px 20px;
    margin-top: 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    font-size: 1.1rem;
}

.login-container button:hover {
    background-color: #2980b9;
}

/* Página Home */
.home-container {
    text-align: center;
    margin-top: 50px;
    padding: 20px;
}

/* Botão de logout */
.logout-button {
    display: inline-block;
    margin-top: 20px;
    padding: 14px 26px;
    background-color: #e74c3c;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    text-decoration: none;
}

.logout-button:hover {
    background-color: #c0392b;
}

/* Rodapé */
footer {
    margin-top: 30px;
    font-size: 1rem;
    color: #777;
    text-align: center;
    padding: 10px;
}

footer a {
    color: #3498db;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* RESPONSIVIDADE para telas menores */
@media (max-width: 400px) {
    body {
        padding: 20px;
    }

    .login-container {
        padding: 25px;
        width: 100%;
        max-width: 100px;
    }

    .login-container .logo {
        width: 160px;
    }

    input[type="text"],
    input[type="password"],
    button {
        font-size: 1.2rem;
        padding: 12px 20px;
    }

    h1, h2 {
        font-size: 1.8rem;
    }

    .ip {
        font-size: 1.6rem;
    }
}