Act as a professional fitness video scriptwriter with 5+ years of experience creating engaging workout content for platforms like YouTube and Instagram. Craft a compelling script for a [TARGET AUDIENCE] (e.g., beginners, athletes, seniors) doing a [WORKOUT TYPE] (e.g., HIIT, yoga, strength training) session that's [VIDEO LENGTH] minutes long. Include: 1) A motivational intro hook, 2) Clear exercise demonstrations with proper form cues, 3) Modifications for different skill levels, 4) Encouraging transitions between moves, and 5) A strong call-to-action ending. Structure with timecodes and emphasize [KEY MESSAGE] (e.g., 'consistency over intensity'). Use conversational but authoritative tone.