:root{
  /* Calm confidence: things fade and settle. Nothing bounces. */
  --ease-standard:cubic-bezier(.32,.72,.24,1); /* @kind other */
  --ease-out:cubic-bezier(.16,.84,.32,1); /* @kind other */
  --ease-in:cubic-bezier(.5,0,.9,.3); /* @kind other */

  --duration-instant:90ms; /* @kind other */
  --duration-fast:180ms; /* @kind other */
  --duration-base:280ms; /* @kind other */
  --duration-slow:480ms; /* @kind other */
  --duration-reveal:720ms; /* @kind other */

  --transition-color:color var(--duration-fast) var(--ease-standard),background-color var(--duration-fast) var(--ease-standard),border-color var(--duration-fast) var(--ease-standard); /* @kind other */
  --transition-reveal:opacity var(--duration-reveal) var(--ease-out),transform var(--duration-reveal) var(--ease-out); /* @kind other */

  --press-scale:0.99; /* @kind other */
  --lift-y:-1px;
}