body {
    height: 100vh;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;

    /* Fundo harmonizado com o painel */
    background: linear-gradient(135deg, #f1f1f1 0%, #ffffff 40%, #e5e5e5 100%);
}

.login-card {
    width: 380px;
    background: #ffffff;
    padding: 35px 40px;
    border-radius: 18px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    text-align: center;
    animation: fadeIn 0.5s ease;
}

.login-card img {
    max-width: 160px;
    margin-bottom: 20px;
}

.form-control {
    border-radius: 10px;
    padding: 12px;
    font-size: 15px;
}

.btn-login {
    width: 100%;
    background: #d50000;
    color: #fff;
    font-weight: bold;
    padding: 12px;
    border: none;
    border-radius: 10px;
    transition: 0.2s;
}

.btn-login:hover {
    background: #b80000;
}

.alert {
    font-size: 14px;
    padding: 8px;
    border-radius: 6px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}