Marketing identity layer and brand book

A demo built for a specific brief. Not client work: the material shown is sample data, so what is on display is the mechanism.

I built a marketing brand book demo for a placeholder energy and water platform, treating the mark and two anchor colors as fixed: the mark is never drawn, each layout reserves a slot with clear space of half its height and a 28 px / 8 mm minimum. Ramps are computed in OKLab around the anchors (30 steps across purple, green and neutral, anchors kept exact), plus two data accents and four gradients; 13 text pairings are measured for contrast. The graphic language comes from one day of placeholder 15-minute data: the load line, the overnight gap above target (198.8 kWh a day, the only green fill, once per layout) and the 96-interval grid, with four seamless patterns and 12 icons on one grid and stroke. 23 applied layouts (social post and story, LinkedIn banner, profile and a 5-slide carousel whose line runs continuously across slides, email, 3 ad sizes, roll-up banner, sticker, business card front and back, A5 flyer, A3 poster, 3 slides, one light web hero) come from one set of composition rules and pass every check. A 10-section book outline says what each section holds and why. Pages print to A4.