* {
  box-sizing: border-box;
}

#outer {
  min-height: auto;
  min-height: 100dvh;
  --odd-max-width: 7rem;
}

#heading {
  grid-column: 1 / span 7;
}

#messageWrapper {
  height: 3rem;

  display: flex;
  justify-content: center;
  align-items: center;
}

#message {
  font-size: 1.2rem;
}

.rhythmWrapper {
  width: 100%;

  display: flex;
  align-items: center;
  justify-content: center;
}

#oddStaff {
  position: relative; /* for guideBar */
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#playButton {
  margin-left: 1rem;
}

.odd, .guideHBeat {
  /* ff needs this else highlighted word answer is squashed. */
  width: 100%;
  max-width: var(--odd-max-width);
}

.guideHBeat {
  max-width: calc(var(--odd-max-width) / 2);
}

.odd {
  cursor: pointer;

  background-color: var(--color-primary-fill);
  border: 0.12rem solid var(--color-primary-border);

  padding: 0.25rem;

  display: flex;
  align-items: center;
  justify-content: center;
}

.odd:first-child {
  margin-left: 0;
}

.odd:last-child {
  margin-right: 0;
}

.noteOdd {
  flex: 2;
  padding: 0;
}

.noteOdd.halfBeat {
  flex: 1;
}

.odd.blankAfterOneBeatRhythm {
  flex: 0;
  width: 0;
  border: 0;
  margin: 0;
  padding: 0;
}

.halfBeat > div > img.rhythmImgOdd {
  padding-top: 40%;
  padding-bottom: 40%;
}

.oddFixer {
  /* height: 100%; */

  display: flex;
  align-items: center;
  justify-content: center;

  flex: 1;
}

.oddSpacer {
  flex: 0.3;
}

.oddSpacer.clef {
  flex: 0.1;
}

.oddSpacer.systemClassic {
  flex: 0.5;
}

.oddSpacer.appWords {
  flex: 0;
}

.odd.checking {
  cursor: default;
  pointer-events: none;
  border: none;
  border-bottom: 0.12rem solid var(--color-secondary-text);

  display: flex;
}

.rhythmImgOdd {
  box-sizing: border-box;

  opacity: var(--rhythm-img-opacity);
  pointer-events: none;

  display: flex;

  /* bg images are for container holding a 60% height rhy img */
  /* Want top,bot padding 20% of container == 3 parts of image + 2 parts margin. */
  padding: 20%;
  width: 100%;
}

#buttonWrapper {
  margin-top: 2rem;
  width: 100%;

  display: grid;
  grid-gap: 0.5rem;
  grid-template-columns: auto auto;
}

#rightButtons {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-end;
}

#doneButton, #nextButton {
  margin-left: 0.5rem;
  height: 4rem;
  width: 6rem;
}

#doneButton.down {
  background-color: var(--color-emphasis-border);
}

@media screen and (min-width: 0) and (max-width: 640px) {
  .oddSpacer, .oddSpacer.systemClassic {
    flex: 0;
  }

  .systemClassic > .rhythmImgOdd {
    padding: 20%;
  }
}

@media screen and (min-width: 640px) and (max-width: 1024px) {
  .oddSpacer, .oddSpacer.systemClassic {
    flex: 0;
  }
}

@media screen and (min-width: 1024px) {
  .oddSpacer, .oddSpacer.systemClassic {
    flex: 0;
  }
}

.retracted {
  display: none;
}