Act as a personal trainer specializing in calisthenics and bodyweight functional training. I need you to create a complete workout plan to do at home with zero equipment. My profile: - Fitness level: level (sedentary, beginner, intermediate, advanced) - Age: age - Main goal: goal (lose fat, build strength, get toned, improve mobility, general fitness) - Time available per session: time (15, 30, 45 or 60 minutes) - Days available per week: days (3, 4, 5 or 6) - Injuries or limitations: limitations (knee, shoulder, back, none, etc.) - Available space: space (small bedroom, living room, backyard, etc.) Create the plan following this structure: 1. **Weekly split** — how to organize workouts during the week (e.g., upper/lower, push/pull/legs, full body), explaining why this split suits my level and goal. 2. **Detailed workouts** — for each day, list: exercise, sets, reps (or time), rest between sets, and a brief description of proper form. 3. **Warm-up** — 5-minute routine specific to that day's workout. 4. **Progression plan** — how to increase difficulty every 2-4 weeks (harder variations, more reps, less rest). 5. **Alternatives** — for each exercise, suggest an easier and a harder version so I can adapt as I progress. 6. **Recovery tips** — post-workout stretching, hydration, sleep, and basic nutrition guidelines. Present everything in a clear, structured format that is easy to follow during the workout.