:root{
  /* Quiet motion. Fades and 2–6px offsets only — no bounce, no spring, no scale-in. */
  --duration-instant:90ms; /* @kind other */
  --duration-fast:150ms; /* @kind other */
  --duration-base:220ms; /* @kind other */
  --duration-slow:400ms; /* @kind other */
  --duration-glow:2400ms; /* @kind other */

  --ease-out:cubic-bezier(0.2,0.6,0.2,1); /* @kind other */
  --ease-in-out:cubic-bezier(0.4,0,0.2,1); /* @kind other */
  --ease-standard:var(--ease-out); /* @kind other */

  --transition-control:background-color var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out),border-color var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out),transform var(--duration-instant) var(--ease-out); /* @kind other */
  --lift-press:translateY(1px); /* @kind other */
}