The defining decision of the system: the page and its cards sit one barely-perceptible step apart. Depth is carried by radius, border and the upward glow — never by lightening a surface. Check the four steps below read as separate without reading as contrasted.
Total luminance spread across all four is smaller than a single step in most dark UI kits. That is intentional and must survive review.
Three text weights of grey, each with a defined job. Nothing dimmer than
#9595BB is permitted for text that carries meaning.
The same content at three surface levels. Confirm separation comes from corner radius and the 1px border, not from fill.
Default card: #0F0F15 fill, 24px radius, 1px #2B2848 border,
padding 32px 32px 48px.
Raised / hovered card: #1C1C27. This is the entire hover delta for a card —
nothing scales, nothing brightens.
There is no light theme. The system ships none, and one must not be derived. The three light-surface exceptions are catalogued in colors-theme-light.html.