HealthCare.gov, the website for health insurance under President Barack Obama's health care law, has been revamped as its second enrollment season approaches. But things are still complicated, since other major provisions of the Affordable Care Act are taking effect for the first time. A look at some of the website and program changes ahead. Old: 76 online screens to muddle through in insurance application. New: 16 screens — for the basic application that most new customers will use. But about a third of those new customers are expected to have more complicated cases, and how they'll fare remains to be seen.