Simulate a transcript of a closed-door negotiation session between three fictional nations regarding a new transcontinental trade agreement. Nation A is a manufacturing powerhouse with lax environmental regulations. Nation B is a tech leader demanding strict carbon tariffs. Nation C holds the shipping lanes and is threatening sanctions unless granted favorable access. Create a dialogue that demonstrates anchoring, framing, multi-party logrolling, and the use of BATNA (Best Alternative to a Negotiated Agreement). The scenario should end in a fragile compromise that satisfies none of the parties perfectly.