Cirdia - Brand Guidelines

Client

Cirdia. Privacy By Design. Cirdia is a line of fitness sensors designed specifically to empower women in managing their health and personal data. The system provides comprehensive fitness tracking — monitoring steps, sleep patterns, heart rate, and body temperature — through two purpose-built sensors: one for daytime wear and a more comfortable device for nighttime. Every piece of data collected remains the sole property of the user. Cirdia came with a completed identity that needed a system — documentation thorough enough to operate without its designer in the room.

Process

A brand built around data privacy needs guidelines that reflect that same standard of precision. After completing the Cirdia identity — the logo system, the soft gradient palette, the fluid typographic language — every decision needed to be written up with its rationale, tested across both daytime and nighttime product contexts, and made self-operating for future designers, partners, and manufacturers. The guidelines were built in parallel with the identity — not as an afterthought. Every colour choice is documented with its psychological rationale and its specific application across light and dark product surfaces. Every typographic rule accounts for both the consumer-facing app and the clinical data reporting environment. The tone of voice section captures the balance Cirdia needed to strike — empowering without being clinical, trustworthy without being cold. The result is a 50+ page document that keeps Cirdia consistent across every touchpoint — from a product box to a Series A pitch deck — without a single briefing required.