:root {
  /* Mechanical, not playful. No bounce, no overshoot, no spring. */
  --dur-1: 120ms; /* @kind other */
  --dur-2: 180ms; /* @kind other */
  --dur-3: 240ms; /* @kind other */
  --dur-4: 380ms; /* @kind other */
  --ease-standard: cubic-bezier(0.2, 0.7, 0.2, 1); /* @kind other */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1); /* @kind other */
  --ease-in: cubic-bezier(0.4, 0, 1, 1); /* @kind other */
  --dur-water: 2400ms; /* @kind other */
}