from tkinter import *
from tkinter import ttk

def option_selected(event):
    selected = selected_conversion.get()
    print(f"You selected: {selected}")

# Main GUI window
root = Tk()
root.title("Styled Dropdown Example")
root.geometry("300x150")
root.configure(bg="#f0f4f8")

# Dropdown options
conversion_options = ["cm to inches", "m to feet", "km to miles"]

# Variable to store selected option
selected_conversion = StringVar()
selected_conversion.set(conversion_options[0])

# Style the combobox
style = ttk.Style()
style.theme_use("clam")  # Use 'clam' for better customization support
style.configure("CustomCombobox.TCombobox",
                fieldbackground="#e6f2ff",
                background="#004C99",
                foreground="#000000",
                font=("Helvetica", 12),
                padding=5)

# Create styled combobox
dropdown = ttk.Combobox(root,
                        textvariable=selected_conversion,
                        values=conversion_options,
                        style="CustomCombobox.TCombobox",
                        state="readonly")
dropdown.bind("<<ComboboxSelected>>", option_selected)
dropdown.pack(pady=30)

root.mainloop()