Lululemon isn't broken, but the brand has clearly hit a tougher chapter.Lululemon Athletica (LULU +1.24%) spent years as one of the most consistent growth stories in retail. The company built a premium brand, expanded into new categories, and delivered industry-leading margins. Investors rarely questioned its ability to drive higher sales and steady earnings growth.But the last few quarters shifted that narrative. U.S. demand softened, product execution looked uneven, and competition intensified. As a resul ...