:root {
  --color-flash: yellow;
  --color-reset: red;
  --color-active-shadow: orange; }

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%; }

body {
  overflow: hidden;
  background: transparent no-repeat;
  color: black;
  font-size: 100vh;
  font-family: monospace;
  position: relative; }

body #counter, body #converter {
  position: absolute;
  width: 100%;
  padding: 0 0.1em;
  line-height: 1em;
  box-sizing: border-box; }

body #counter {
  top: 0;
  left: 0;
  height: 100%;
  text-align: right; }

body #converter {
  display: none;
  top: 50%;
  text-align: left; }

body #cover {
  position: absolute;
  width: 100%;
  height: 100%; }

body.two-line {
  font-size: 50vh; }

body.two-line #counter, body.two-line #converter {
  height: 50%; }

body.two-line #converter {
  display: block; }

.notBeingUpdated {
  transition: color 0.5s, text-shadow 0.5s; }

.beingUpdated {
  color: var(--color-flash);
  text-shadow: 0 0 4vh var(--color-active-shadow);
  transition: color 0, text-shadow 0; }

.isResetting {
  color: var(--color-reset);
  text-shadow: 0 0 4vh var(--color-active-shadow); }