Now I'll implement the share functionality according to the specifications. Let me update each file:

I've successfully implemented all three contextual share prompts according to the specifications:

1. SIMULATOR (/simulator) - Added a bottom bar that appears after 5+ AI messages with:

• Border-top with dashed border styling
• Terminal icon with green color (#00ff88)
• "You just talked to AI from [year]" message
• Two buttons: "Challenge a friend" (with ExternalLink icon) and "Copy chat" (with ClipboardCopy icon)
• Uses Web Share API with Twitter fallback
• Mono text, no emojis

2. QUIZ (/quiz) - Enhanced the completion screen with:

• Large "CHALLENGE A FRIEND" button with Share2 icon as main CTA

• Dynamic share text based on score (no emojis):

  • 10/10: "Perfect score on the AI Museum Quiz. I'm an AI Curator."
  • 7-9/10: "I scored [X]/10 on the AI History Quiz. Can you beat me?"
  • 4-6/10: "I scored [X]/10 — AI history is harder than I thought."
  • 0-3/10: "Only [X]/10 on the AI quiz. This thing humbled me."
• Row of 4 share buttons: X/Twitter, WhatsApp, Copy, and Share2 (all with inline SVGs, 14x14)
• Social proof line with Users icon: "2,400+ have taken the quiz"

3. GRAVEYARD (/graveyard) - Added share functionality to memorial cards:

• Small Share2 button (12x12) in bottom-right with opacity-40 that goes to opacity-100 on hover
• Direct action on click → Twitter intent with "RIP [Project Name] ([birth year]–[death year]) — via @theaimuseum [url]"
• No dropdown, clean inline SVG implementation

All implementations use lucide-react-style inline SVGs, mono typography, and maintain the existing terminal aesthetic without any emojis.