:root{
  --ease-suave:cubic-bezier(.22,.61,.36,1);
  --ease-entrada:cubic-bezier(.16,1,.3,1);
  --ease-saida:cubic-bezier(.4,0,1,1);
  --dur-instant:90ms;
  --dur-fast:160ms;
  --dur-base:240ms;
  --dur-slow:420ms;
  --lift-hover:-2px;
  --press-scale:.97;
}