Elegance

Elegance is beauty that shows unusual effectiveness and simplicity... In engineering, a solution may be considered elegant if it uses a non-obvious method to produce a solution which is highly effective and simple. An elegant solution may solve multiple problems at once, especially problems that are not thought to be inter-related.[6] Elegance can arguably be measured for engineering problems as the ratio of problem complexity to that of solution complexity. https://en.wikipedia.org/wiki/Elegance