body {
    background-color: #f5f5f5;
}

.login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 20px;
    background-color: #ffffff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

.logo {
    display: block;
    margin: 0 auto 20px;
}

.form-control {
    margin-bottom: 15px;
}

.btn-dark {
    width: 100%;
}