.quantity-input {
    width: 60px;
    text-align: center;
    border: 1px solid #ced4da;
    border-radius: 4px;
    padding: 2px;
    margin: 0 5px;
}

.minus-cart, .plus-cart {
    padding: 5px 10px;
    font-size: 16px;
    vertical-align: middle;
}

@media (max-width: 768px) {
    .quantity-input {
        width: 48px;
        font-size: 14px;
        padding: 2px 4px;
    }

    .minus-cart, .plus-cart {
        padding: 4px 8px;
        font-size: 14px;
    }

    .edit-product-btn {
        font-size: 14px;
        padding: 6px 10px;
    }

    .remove-cart {
        font-size: 12px;
        padding: 4px 8px;
    }

    .card-body h5 {
        font-size: 16px;
    }

    .card-body .text-muted.small,
    .card-body label {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .quantity-input {
        width: 42px;
        font-size: 13px;
    }

    .minus-cart, .plus-cart {
        padding: 3px 7px;
        font-size: 13px;
    }

    .edit-product-btn {
        font-size: 13px;
        padding: 5px 8px;
    }
}