:root {
  --duration-instant: 90ms; /* @kind other */
  --duration-fast: 140ms; /* @kind other */
  --duration-base: 220ms; /* @kind other */
  --duration-slow: 340ms; /* @kind other */

  --ease-express: cubic-bezier(0.2, 0.8, 0.2, 1); /* @kind other */
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1); /* @kind other */
  --ease-exit: cubic-bezier(0.4, 0, 1, 1); /* @kind other */
  --ease-overshoot: cubic-bezier(0.34, 1.4, 0.64, 1); /* @kind other */

  --transition-control: color var(--duration-fast) var(--ease-express),
    background-color var(--duration-fast) var(--ease-express),
    border-color var(--duration-fast) var(--ease-express),
    box-shadow var(--duration-fast) var(--ease-express),
    transform var(--duration-instant) var(--ease-express); /* @kind other */
}