import streamlit as st

st.set_page_config(page_title="Simple Calculator", layout="centered")

st.title("🧮 Simple Calculator")

# Input fields
col1, col2 = st.columns(2)
with col1:
    num1 = st.number_input("First Number", value=0.0)
with col2:
    num2 = st.number_input("Second Number", value=0.0)

# Operation selection
operation = st.selectbox("Operation", ["Addition", "Subtraction", "Multiplication", "Division"])

# Calculate button
if st.button("Calculate"):
    try:
        if operation == "Addition":
            result = num1 + num2
        elif operation == "Subtraction":
            result = num1 - num2
        elif operation == "Multiplication":
            result = num1 * num2
        elif operation == "Division":
            result = num1 / num2 if num2 != 0 else "Error: Division by zero!"
        
        st.success(f"Result: **{result}**")
    except Exception as e:
        st.error(f"Error: {str(e)}")

# Optional footer
st.markdown("---")
st.caption("Made with Streamlit 🎈 • Hosted on Hugging Face Spaces 🤗")