opencode/packages/ui/src/components/animated-number.css

[data-component="animated-number"] {
  display: inline-flex;
  align-items: baseline;
  vertical-align: baseline;
  line-height: inherit;
  font-variant-numeric: tabular-nums;

  [data-slot="animated-number-value"] {
    display: inline-flex;
    flex-direction: row-reverse;
    align-items: baseline;
    justify-content: flex-end;
    line-height: inherit;
    width: var(--animated-number-width, 1ch);
    overflow: hidden;
    transition: width var(--tool-motion-spring-ms, 560ms) var(--tool-motion-ease, cubic-bezier(0.22, 1, 0.36, 1));
  }

  [data-slot="animated-number-digit"] {
    display: inline-block;
    width: 1ch;
    height: 1em;
    line-height: 1em;
    overflow: hidden;
    vertical-align: baseline;
    -webkit-mask-image: linear-gradient(
      to bottom,
      transparent 0%,
      #000 var(--tool-motion-mask, 18%),
      #000 calc(100% - var(--tool-motion-mask, 18%)),
      transparent 100%
    );
    mask-image: linear-gradient(
      to bottom,
      transparent 0%,
      #000 var(--tool-motion-mask, 18%),
      #000 calc(100% - var(--tool-motion-mask, 18%)),
      transparent 100%
    );
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
  }

  [data-slot="animated-number-strip"] {
    display: inline-flex;
    flex-direction: column;
    transform: translateY(calc(var(--animated-number-offset, 10) * -1em));
    transition-property: transform;
    transition-duration: var(--animated-number-duration, 560ms);
    transition-timing-function: var(--tool-motion-ease, cubic-bezier(0.22, 1, 0.36, 1));
  }

  [data-slot="animated-number-strip"][data-animating="false"] {
    transition-duration: 0ms;
  }

  [data-slot="animated-number-cell"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1ch;
    height: 1em;
    line-height: 1em;
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-component="animated-number"] [data-slot="animated-number-value"] {
    transition-duration: 0ms;
  }

  [data-component="animated-number"] [data-slot="animated-number-strip"] {
    transition-duration: 0ms;
  }
}