:root {
  --text-width: 58ch;
  --frame-padding: 30px;
  --question-width: 45ch;
  --img-max-height: 200px;
}

#exercise {
  touch-action: manipulation;
  max-width: 1000px;
  width: -moz-min-content;
  width: min-content;
}

/* override exercise.css */
#exercise .overlayLayerImage,
#exercise #finalBoard {
  display: block;
}

#exercise #sizer {
  width: calc(var(--text-width) + 2 * var(--frame-padding));
  max-width: 100vw;
}

#exercise #sizer,
#exercise #question-frame {
  font-size: 18px;
}

#exercise #question-frame {
  border-radius: 3px;
  background-color: white;

  max-width: 100vw;
  padding: 30px var(--frame-padding);
  margin: 40px auto 15px;

  display: flex;
  flex-direction: column;
  align-items: center;
}

#progress-counter {
  margin: 15px;
}

/***** TEXT *****/
#exercise #title {
  font-size: 28px;
  font-weight: 500;
  margin: 0;
}

#exercise #text {
  text-align: left;
  line-height: 1.25;
  margin: 1em 0;
}

#exercise #text > * {
  max-width: var(--text-width);
  margin-left: auto;
  margin-right: auto;
}

#exercise #text img {
  cursor: pointer;
}

#exercise #text .fmt-para {
  text-indent: 1em;
}

#exercise #text .dropdown {
  text-decoration: underline dashed;
  display: inline; /* otherwise would inherit text-indent */
  cursor: pointer;
}

ul, ol, li {
  /* overrides global */
  font-size: inherit;
  line-height: inherit;
  /* negates text indent from para */
  text-indent: 0;
}

/***** QUESTION *****/
#exercise #question {
  text-align: left;
  display: grid;
  justify-content: center;
  grid-template-columns: minmax(var(--question-width), auto);
  width: var(--text-width);
  max-width: 100%;

  font-size: 18px;
}

#exercise #question-title {
  font-size: 22px;
  font-weight: 500;
  margin: 15px 0;

  display: flex;
  flex-direction: column;
  align-items: center;
}

#exercise #options img {
  max-width: 100%;
}

/***** OPTIONS *****/
#exercise #options {
  gap: 10px;
  text-align: left;

  display: grid;
  grid-template-columns: minmax(var(--question-width), auto);
  justify-content: center;
}

#exercise .card {
  padding-left: 15px;
}

/***** STAR BOARD *****/
img.level {
  display: inline-block;
  width: 150px;
}

/***** EXPLANATION *****/
#exercise .explanation {
  display: flex;
  gap: 10px;
  align-items: center;
  text-align: left;
  font-style: italic;
  line-height: 1.15;

  border-top: none;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

#exercise .explanation .content {
  /* needed for wide explanation not to widen option */
  width: 0;
  flex-grow: 1;
}

#exercise .explained .card {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

#exercise .explanation > img {
  align-self: flex-start;
}

#exercise #text {
  z-index: 0;
  position: relative;
}

#exercise .explanation-inline {
  position: relative;
  background-color: #f8e187;
  box-shadow: 0 0 0 3px #f8e187;
  border-radius: 3px;
}

#exercise .explanation-inline .anchor {
  position: relative;
}

#exercise .explanation-inline .anchor::after,
#exercise .explanation-inline .anchor::before {
  --size: 1em;
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  transform: translate(60%, -60%);

  width: var(--size);
  height: var(--size);
  padding: 3px;
  border-radius: 50%;
}

#exercise .explanation-inline .anchor::after {
  z-index: 1;
  background-image: url("https://www.umimeto.org/asset/global/img/icons-umime/icon-bulb.svg");
  background-size: var(--size) var(--size);
  background-position: center;
  background-repeat: no-repeat;
}

#exercise .explanation-inline .anchor::before {
  z-index: -1;
  background-color: #f8e187;
}

/********************** WHITE SCREEN *****************************/
#exercise.whiteScreen {
  --frame-padding: 10px;
}

#exercise.whiteScreen #question-frame {
  padding: var(--frame-padding);
}
/********************** MOBILE SCREEN *****************************/
@media screen and (max-width: 599px) {

  :root {
    --frame-padding: 10px;
  }

  #exercise #question,
  #exercise #options {
    grid-template-columns: 1fr;
  }
}