Create AI_fitness_generator

src/AI_fitness_generator

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+import streamlit as st
+
+st.set_page_config(page_title="FitPlan AI", layout="centered")
+
+# ---------------- SESSION STATE ----------------
+if "step" not in st.session_state:
+    st.session_state.step = 1
+
+# ---------------- STEP 1: LANDING PAGE ----------------
+if st.session_state.step == 1:
+    st.title("💪 FitPlan AI")
+    st.subheader("Your Personalized Fitness Plan Generator")
+
+    st.markdown("""
+    Welcome to **FitPlan AI** 🚀  
+    Get a customized workout plan based on:
+    - Your fitness profile
+    - Your goals
+    - Available equipment
+    """)
+
+    if st.button("Generate My Plan"):
+        st.session_state.step = 2
+
+# ---------------- STEP 2: FITNESS PROFILE ----------------
+elif st.session_state.step == 2:
+    st.title("👤 Your Fitness Profile")
+
+    age = st.number_input("Age", min_value=10, max_value=80)
+    gender = st.selectbox("Gender", ["Male", "Female", "Other"])
+    weight = st.number_input("Weight (kg)")
+    height = st.number_input("Height (cm)")
+    experience = st.selectbox(
+        "Fitness Level",
+        ["Beginner", "Intermediate", "Advanced"]
+    )
+
+    if st.button("Next"):
+        st.session_state.profile = {
+            "age": age,
+            "gender": gender,
+            "weight": weight,
+            "height": height,
+            "experience": experience
+        }
+        st.session_state.step = 3
+
+# ---------------- STEP 3: SELECT GOAL ----------------
+elif st.session_state.step == 3:
+    st.title("🎯 Select Your Goal")
+
+    goal = st.radio(
+        "Choose your fitness goal:",
+        ["Increase Flexibility 🧘", 
+         "Build Muscle 💪", 
+         "Weight Loss / Get Lean 🔥"]
+    )
+
+    if st.button("Next"):
+        st.session_state.goal = goal
+        st.session_state.step = 4
+
+# ---------------- STEP 4: SELECT EQUIPMENT ----------------
+elif st.session_state.step == 4:
+    st.title("🏋️ Select Available Equipment")
+
+    equipment = st.multiselect(
+        "Select equipment you have access to:",
+        [
+            "Dumbbells",
+            "Barbell",
+            "Resistance Bands",
+            "Treadmill",
+            "Stationary Bike",
+            "Bench Press",
+            "Pull-up Bar",
+            "Kettlebells",
+            "Leg Press Machine",
+            "Cable Machine",
+            "Smith Machine",
+            "No Equipment (Bodyweight Only)"
+        ]
+    )
+
+    if st.button("Generate Plan"):
+        st.session_state.equipment = equipment
+        st.session_state.step = 5
+
+# ---------------- STEP 5: DISPLAY PLAN ----------------
+elif st.session_state.step == 5:
+    st.title("📄 Your Personalized Fitness Plan")
+
+    st.subheader("Profile Summary")
+    st.write(st.session_state.profile)
+    st.write("Goal:", st.session_state.goal)
+    st.write("Equipment:", st.session_state.equipment)
+
+    st.divider()
+
+    # Simple frontend demo output
+    if "Build Muscle" in st.session_state.goal:
+        st.success("💪 Suggested Plan: 4-Day Strength Split")
+        st.markdown("""
+        - Day 1: Chest + Triceps  
+        - Day 2: Back + Biceps  
+        - Day 3: Legs  
+        - Day 4: Shoulders + Core  
+        """)
+
+    elif "Flexibility" in st.session_state.goal:
+        st.success("🧘 Suggested Plan: 5-Day Mobility Routine")
+        st.markdown("""
+        - Dynamic Stretching  
+        - Yoga Flow  
+        - Hamstring & Hip Mobility  
+        - Shoulder Mobility  
+        - Core Stability  
+        """)
+
+    else:
+        st.success("🔥 Suggested Plan: 4-Day Fat Loss Program")
+        st.markdown("""
+        - HIIT Training  
+        - Strength + Cardio Mix  
+        - Core Workouts  
+        - 30 min Daily Cardio  
+        """)
+
+    if st.button("Start Over"):
+        st.session_state.step = 1