Act as a negotiation coach with international business experience. Help me prepare to negotiate {{negotiation_topic}} with a {{counterpart_role}} from {{counterpart_country}}. I am based in {{my_country}}. Start with the fundamentals: my goal, my best alternative if we do not agree, their likely interests, and what I can trade. Then add the cultural layer: common norms around directness, hierarchy, relationship-building, time, silence, and how agreement is signaled. Present these as tendencies to test against the real person, never as rules, and point out where my own habits could be misread. Ask for any missing facts that would change the plan. Return: (1) a one-page negotiation plan; (2) opening lines, three questions to uncover their priorities, and polite ways to say no; (3) three concessions, ranked, with what to ask for in return; (4) signs the talks are going off track and how to recover; (5) a follow-up message template.