Brand / Cosmic Ink
Paper. Ink.
Room to think.
The visual reference for this site. These specimens use the same styles as the pages you read.
Read design.md →Warm paper. Clear signals.
Keep the reading surface quiet. Blue leads the eye; violet and red appear sparingly. Texture and cosmic detail belong in the artwork.
- Paper
#f3f0e9 - Ink
#171722 - Muted
#565363 - Line
#ccc7c0 - Blue
#3455db - Violet
#7050ba - Red spark
#bc3447
One family, different voices.
Martian Mono Variable / Self-hosted
Curiosity, made tangible.
A heading gives the idea a home.
This is the reading size: 21.25 pixels at your browser's default settings, on desktop and phone. Short lines and generous spacing make room for the next thought. Line lengths follow the text size when you zoom in or out.
Familiar pieces.
A useful callout adds context without competing with the explanation.
Show worked solution
Use native disclosures for answers. The reading experience still works without JavaScript.
| Learn | Notes |
|---|---|
| An ordered path through a topic | A standalone idea or reflection |
| Previous and next lesson | Back to the notes index |
Images explain an idea. Body text stays selectable. Keyboard focus stays visible. Motion respects the reader's preferences.
Figures that explain a step.
Keep labels selectable and describe the change beside the figure. Time runs downward. Comparisons stack on phones, and a selected path has a written label as well as color.
- 1 · Read the stock
Alice
Sees one ticket.Bob
Sees the same ticket. - 2 · Make one decision
A guarded update checks the stock as it changes it.
Before
1 ticket + 0 orders
After a committed purchase
0 tickets + 1 order
Find 27.
↓ Choose one range
- Below 20
Skip.
- 20 up to 40
Follow this branch.
- 40 and above
Skip.
Read the complete examples in One ticket, two buyers, Finding one row, and Versions and snapshots.
The approved direction.
ImageGen concepts guide the composition. The working site uses real text and accessible controls; the revised lesson phone view sets the large-text direction.
Learning library & course overview

Lesson reader

Standalone article
