Why did you not use input type number for the INN field?

It is better not to use input type="number" for the TIN (Taxpayer Identification Number) field for several reasons:

• TIN is not a numeric value for arithmetic operations, but a string of digits. Using a numeric field can lead to the removal of leading zeros, which distorts the value.
• In input type="number" browsers may display arrows for changing the value, which is inappropriate for TIN.
• Entering long numbers can cause issues with accuracy and formatting.

It is better to use input type="text" with client-side and server-side validation, restricting input to digits only and a fixed length, for example, using regular expressions.