Could Germany invade Sweden after losing Norway?

Would Sweden join the Allies or be vulnerable to a German invasion after Norway stands?

Sweden could be drawn closer to the Allies, but a German invasion would be an unattractive and costly option against a mobilised Swedish defence.

Sweden would be heavily mobilised after Denmark and Norway, following its historical alert response. Germany lacks an attractive military route and would risk losing large numbers of troops by attacking Sweden rather than pursuing another strategic direction. If the attack pushed Sweden into the Allied camp, Germany would also enlarge the defended Scandinavian front it was trying to remove. The answer reinforces the importance of Scandinavian geography and preparedness in the scenario.