Basic system is 2/1
What the heck was I supposed to answer on this? Nothing fits in perfectly playing 2/1 where -
1. 1NT shows 6-10 HCP, no 4-card major (I had 11 HCP)
2. 2♣ shows 12+ HCP and is 100% GF (I had 11 HCP)
3. 2♦ shows 6-9 HCP and 5+ ♦ (sometimes only 4 if that is the best bid available)
4. 2NT shows 10-12 HCP, no 4-card major or 5-card ♦ suit but otherwise balanced/semi-balanced, invitational
5. 3♦ shows 10-12 HCP, 5+ ♦, no 4-card major, game invitational
The hand is heavily skewed towards the minors.