syntax clear

syntax match UserHeader /^>>> USER/ containedin=ALL
syntax match AssistantHeader /^>>> ASSISTANT/ containedin=ALL

hi def link UserHeader orangebg
hi def link AssistantHeader bluebg

syntax match H1 '^#\s.*$'
syntax match H2 '^##\s.*$'
syntax match H3 '^###\s.*$'

hi def link H1 base3
hi def link H2 base2
hi def link H3 base2

syntax region CodeBlock start='^\s*```.*$' end='^\s*```$' keepend

syntax match  InlineCode '`[^`]\+`' containedin=ALL

hi def link markdownCodeBlock cyan
hi def link markdownInlineCode cyan