:root{
  /* Everything settles like a drawer closing: quick out, long soft landing. No bounce. */
  --ease-drawer:cubic-bezier(.2,.7,.2,1); /* @kind other */
  --ease-out:cubic-bezier(.16,1,.3,1); /* @kind other */
  --ease-in-out:cubic-bezier(.6,0,.4,1); /* @kind other */
  --dur-instant:90ms; /* @kind other */
  --dur-fast:160ms; /* @kind other */
  --dur-base:260ms; /* @kind other */
  --dur-slow:480ms; /* @kind other */
  --dur-reveal:900ms; /* @kind other */
  --transition-control:background-color var(--dur-fast) var(--ease-drawer),color var(--dur-fast) var(--ease-drawer),border-color var(--dur-fast) var(--ease-drawer),box-shadow var(--dur-fast) var(--ease-drawer); /* @kind other */
}