NINE REGISTERS
One font size. Three inks by three weights — heavier and blacker, never larger.
MOTION IS FEEDBACK
Never decoration. Success resolves once and persists — send it and see.
SCREENS, NOT PAGES
Every view fits the viewport; the underline slides, nothing scrolls.
ONE ACCENT
The single instance per view — this sheet just spent its.
A link rests in ink and warms on hover; the accent is rationed.
BUTTONS ARE NOT LINKS
Links navigate, buttons act — they never share a costume.
LIGHT AND DARK
Defaulting to your system, overruled by the toggle above. Chrome stays 13px.