What was the 'grim and gritty' trend in comics, and how did Marvel participate?

The 'grim and gritty' trend, influenced by films like *Taxi Driver* and *New York, New York*, emphasized darker themes, morally ambiguous characters, and realistic violence. Marvel embraced this trend, particularly in titles like *Daredevil*, *The Punisher*, and *Elektra*. While some found it excessive, it broadened the appeal of superhero comics to a wider audience.