Internal · brand
Four systems.
Four complete design systems living in one stylesheet. Use the switcher in the nav, or press 1–4, to take over the whole site with each one. Systems 03 and 04 are ported from the founder's launch drafts; their stated rules are preserved rather than reinterpreted.
Shared DNA
One display voice, one workhorse, one data voice per system. IBM Plex Mono is the shared "protocol voice" across all four: the one thing that never changes.
Structure comes from 1px rules and space, never drop shadows or glassmorphism. Texture is grain or graph paper, never gradient decoration.
Every number, label and protocol line is monospaced and letter-spaced. If it's a measurement, it looks like one.
"ENDUURR's system", never "an Enduurr". Endurance only. Never general wellness or gym content. See BRAND.md.
System 01
Night Shift
Dark · campaign-native · defaultThe session that happens when nobody is watching. Anton condensed caps, film grain, one hard spotlight, and a single volt charge, the only colour allowed in the room. Zero border radius: nothing in this system is soft.
Protocol is a constant
Confident because of evidence, not volume.
30–60 g carbs/hr · 2–3 doses · 100–150 ml per sip
- R-01One accent, spent like money. Under 5% of any screen.
- R-02Anton for headlines only, always uppercase. Never body, never UI.
- R-03Hard cuts, 150–550ms. Nothing floats or bounces.
- R-04Photography: B/W, high contrast, sweat detail, side profiles.
System 02 · rebuilt
Start Line
Light · timing board · no serifThe replacement for the retired "First Light" system, which was warm paper plus serif italic, a look now so common in AI-adjacent products that it read as a template, and which collided with System 04 besides. This one is a race-results sheet instead: cold white, faint lane markings, tabular numerals and one electric timing blue. No serif anywhere, ever.
Protocol is a constant
Confident because of evidence, not volume.
30–60 g carbs/hr · 2–3 doses · 100–150 ml per sip
- R-01Cold white, never cream. Warmth is System 04's job.
- R-02No serif, in any weight, for any reason.
- R-03Display type is tight: negative tracking, tall stacks, left-locked.
- R-04Timing blue marks live data and one word per headline. Nothing else.
System 03 · ported from the founder's draft
Noir Protocol
Dark · pure monochrome · no accentDiscipline taken to its conclusion: no accent colour at all. Emphasis is scale, weight and restraint. The warm off-white is never pure #fff, the hairlines do all the layout work, and the left protocol rail carries the phases. The hardest of the four to execute and the most expensive-looking when it lands.
Protocol is a constant
Confident because of evidence, not volume.
Warm up: 20 min · 12 × 1 km @ 5K pace
- R-01Pure monochrome. No accent colour, ever. Emphasis = scale, weight, motion.
- R-02Anton for headlines only, always uppercase. Never for body or UI.
- R-03Every data point in mono with letter-spacing ≥ .14em: the "protocol voice".
- R-04Photography: B/W, high contrast, sweat detail. No smiling stock.
- R-05Hairlines do the layout work. No drop shadows, no glassmorphism.
- R-06Buttons widen their tracking on hover instead of changing colour.
System 04 · ported from the founder's draft
Lab Sheet
Light · the brand bible on graph paperContent as document: warm paper, a visible graph-paper grid, ruled frames with figure numbers, registration crosses, and one clinical accent reserved strictly for data and live states. The serif italic is the only softness allowed: one phrase per headline, maximum.
Protocol is a constant
Confident because of evidence, not volume.
20 km easy · 12 × 1 km @ 5K pace · 90 g/hr
- R-01Warm paper, black ink, one accent. Lactate red marks data, live states and figure numbers. Never headlines, never decoration.
- R-02Everything lives in a ruled frame. Content is a document: Fig. numbers, doc codes, registration crosses.
- R-03Serif italic is the only softness allowed: one phrase per headline, maximum.
- R-04The graph-paper grid is always visible at page level; frames sit on it like taped-down sheets.
- R-05Hover states invert to full ink: paper becomes ink, ink becomes paper.
Recommendation
Ship Noir Protocol as the brand system; keep Lab Sheet as the document system. That pairing is the one the Brand Bible argues for on its own: Section 2.6 asks for a brand that is "confident because of evidence, not volume," and a system with no accent colour at all is the most literal possible expression of that. Noir carries the campaign, the launch page, social and packaging. Lab Sheet carries anything where the working is shown: the journal, protocols, calculators, investor material, because "publish the research" reads more credibly on graph paper than on black.
Night Shift and Start Line are the range, not the identity. Night Shift is the louder, more commercial cousin of Noir, useful if the volt accent tests better in a feed, where pure monochrome can disappear. Start Line is the daylight, data-forward option for race-day pages and result-style content. Both are built on the same components, so keeping them costs nothing but a decision.
If you must ship exactly one: Noir Protocol. It is the most disciplined, the hardest to imitate, and the only one of the four whose central rule (no accent colour) is a strategy rather than a style.
Every system passes the same content test regardless of which is chosen: endurance only, no competitor brand names, no assumption stated as a conclusion. Colour is not what makes it ENDUURR. See BRAND.md.