Why are inline styles considered bad practice?

Inline styles are considered bad practice for several reasons:

1. Poor readability and code maintenance When CSS is mixed with HTML, structure and presentation get tangled together. The page becomes harder to read and maintain, especially when there are many elements.
2. Styles cannot be reused If the same style is needed in 10 places, it has to be copied 10 times. Any change then has to be edited manually in every place, which increases the risk of mistakes.
3. Harder to change the project's design When styles are collected in one file, you change a rule once and it applies to the whole site. With inline styles, this is not possible.
4. Violation of the separation of concerns principle HTML should describe structure and content, and CSS, appearance. Inline breaks this principle and mixes the roles.
5. Problems with cascade and priority Inline has high priority, so overriding such styles in the future becomes harder. Sometimes !important has to be used, which tangles the code even more.

#Summary

Inline styles are suitable only for rare, targeted cases, but for regular development they get in the way of scalability, reuse, and code readability.