:root{
/* Motion is near-absent: instant colour swaps only. No transforms,
   no bounces, no fades, no animated counters, no scroll reveals. */
--duration-instant:0ms; /* @kind other */
--duration-snap:80ms; /* @kind other */
--ease-linear:linear; /* @kind other */
--transition-color:color var(--duration-snap) var(--ease-linear),background-color var(--duration-snap) var(--ease-linear),border-color var(--duration-snap) var(--ease-linear);
}