Every value on this page traces to either tokens.json or the breadcrumb skill's own spec -- nothing hardcoded, nothing eyeballed. Hover any block of text in the page source to see the token cited in a CSS comment next to it.
Background, border, shadow, padding, and both text styles on this card are each a direct token.json lookup -- see the CSS for the exact token name behind every property.
surface-raised-primary + border-primary + elevation-b-40Full transparency -- values NOT from tokens.json
font-family: 'Breuer Condensed' -- the family name isn't a JSON field (tokens.json strips it as redundant, since every typography entry uses the same one). It comes from loading this same package's fonts.css in the <head>.--px-page (16/32/32/40px per breakpoint) -- not in tokens.json (page-margin isn't part of the Supernova export), but is documented directly in breadcrumb/SKILL.md's own breakpoint table, and used here exactly as specified there.--duration-fast-3 / --ease-standard -- referenced by name in breadcrumb's CSS template but not numbered there. Motion tokens aren't part of the Supernova export at all; these are the actual values already live in every other page's :root (verified against template.html).box-sizing: border-box reset -- a CSS mechanic, not a design decision, so not a token to begin with.