I realized that my login URL is very weird, with a lot of letters and numbers (like an encrypted text).
When I go to
app/design/frontend/base/default/layout/customer.xml and check the item
<customer_logged_out>, the reference for top.links looks fine:
But in my website the URL is something like: https://example.com/customer/account/login/referer/aHR0cDovL2Rldi5iZWx(...)/
My question is: Is that correct?
I am having some CSS problems (classes based on top links) and when I navigate to https://example.com/customer/account/login/ everything works fine and looks like I should use this login screen instead of the first link.