Jukuna

Adaptive exam prep for students in Japan, aimed at the point just above what they already know.

Client: Jukuna, an adaptive practice platform covering AP, IB, Digital SAT and IELTS tracks
Scope: Bilingual Japanese and English marketing site
Heroes built: Four explored, one shipped
Live: jukuna.vercel.app

The Jukuna home page as shipped, with the headline Every question, placed just above what each student knows beside a broken red ring. — What shipped Zen Old Mincho, IBM Plex Sans JP and Zen Kaku Gothic New

Takes

Four takes on one idea: the edge of what a student knows.

All four say the same thing and none of them say it the same way. Point at any of them to see it in full colour.Each one resolves into full colour as it reaches the middle of the screen.

Build

What is actually in it.

Type: Three Japanese faces held on one baseline: Zen Old Mincho, IBM Plex Sans JP and Zen Kaku Gothic New, on a fluid clamp() scale
Structure: A ten-section landing page plus four subpages. Hand-written HTML and CSS, no framework
Signature: A sticky scroll-driven sequence, "ONE DAY ON THE PLATFORM · 一日", whose sections are generated in JavaScript
Motion: Canvas 2D, a marquee, backdrop-filter, and a click-to-enter intro gate
Accessibility: prefers-reduced-motion handled
Language: Japanese and English throughout, not a translation layer bolted on