OKR Framework Builder

Help me create quarterly OKRs for [TEAM/COMPANY]:

Company mission: [MISSION]
Quarter: [Q1/Q2/Q3/Q4] [YEAR]
Top priorities: [LIST 2-3]
Current challenges: [CHALLENGES]

Create:
- 3 company-level Objectives
- 3-5 Key Results per Objective (specific, measurable, time-bound)
- Scoring guidance (0-1.0 scale)
- Weekly check-in questions
- Grading rubric

Ensure OKRs are ambitious (70% achievement = success) and aligned top-down.