Item details restrictions

Hi, I’m working on my first softr project - 2 sided marketplace.
I intend to have all of the items displayed on the main page, along with some limited info on them. When you click on a certain item, more information about it will be revealed.
I only want logged-in users to have access to this “item details” view.
While I have no trouble making the page visible only to logged-in users, I can’t figure out how to display the login page to those who are not logged in when clicking on the item.
How would you go about it?

Make the page visible to all users. Add a sign in block that is only visible to non-logged in users. Make the items details block visible only to logged in users.