.main_div {
    background-color: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.card {
    border-radius: 1rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.form-control {
    border-radius: 0.5rem;
}

.btn-primary {
    border-radius: 0.5rem;
}