/* Responsive styles */
@media (max-width: 576px) {
    .container {
        margin-top: 20px;
        padding: 15px;
        width: 95%;
    }

    h1 {
        font-size: 1.8rem;
    }

    p {
        font-size: 0.9rem;
    }

    .form-group {
        margin-bottom: 0.8rem;
    }

    .form-group label {
        font-size: 0.9rem;
    }

    .form-group input {
        padding: 0.3rem 0.6rem;
    }

    .btn-primary {
        padding: 8px;
        font-size: 0.9rem;
    }

    .alert {
        padding: 10px;
        font-size: 0.9rem;
    }

    .register-link {
        margin-top: 10px;
        font-size: 0.9rem;
    }
}

@media (min-width: 577px) and (max-width: 768px) {
    .container {
        margin-top: 30px;
        width: 80%;
    }
}