Wolfram|Alpha is unable to evaluate this improper integral

I want to solve this integral$$\int_{0}^{\frac{\pi}{2}} e^{-(\pi \tan(x) - 1)^2} \, dx$$

I tried Wolfram alpha but it is unable to evaluateI tried this codeIntegrate[Exp[-(Pi*Tan[x] - 1)^2], {x, 0, Pi/2}]

However, Wolfram Alpha is unable to evaluate it.

I have never used any (CAS) or software,If Wolfram Alpha is unable to evaluate it, does that mean Mathematica will also be unable to evaluate it?