.music-theory-page {
  flex: 1;
  display: flex;
  background: #120A1A;
}

.music-theory-slice {
  width: 100%;
  background: #120A1A;
  color: #FEFFE5;
}

.music-theory-shell {
  gap: 2rem;
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.music-theory-copy {
  display: grid;
  gap: 0.5rem;
}

.music-theory-title {
  color: #FEFFE5;
  font-weight: 320;
}

.music-theory-help {
  color: #AC9D7C;
  font-weight: 160;
}

.music-selector-label,
.music-fret-labels,
.music-string-tuning {
  color: #AC9D7C;
  font-weight: 80;
}

.music-theory-selectors {
  display: grid;
  gap: 0.5rem;
}

.music-random-button {
  justify-self: start;
  margin-left: 12ch;
  border: 0;
  background: transparent;
  padding: 0.5rem 1ch;
  color: #FEFFE5;
  font: inherit;
  font-weight: 160;
  line-height: 1;
  cursor: pointer;
}

.music-random-button:hover,
.music-random-button:focus-visible {
  color: #E36325;
  font-weight: 320;
  outline: none;
}

.music-selector {
  display: grid;
  grid-template-columns: 12ch 3ch 18ch 3ch;
  align-items: center;
}

.music-selector[data-root-control] {
  grid-template-columns: 12ch 3ch 4ch 3ch;
}

.music-selector-step,
.music-tuning-step,
.music-fret-note,
.music-piano-key {
  border: 0;
  background: transparent;
  padding: 0;
  font: inherit;
  line-height: 1;
  cursor: pointer;
}

.music-selector-step,
.music-tuning-step {
  color: #AC9D7C;
  font-weight: 80;
}

.music-selector-step {
  width: 3ch;
  text-align: center;
}

.music-selector-step:hover,
.music-selector-step:focus-visible,
.music-tuning-step:hover,
.music-tuning-step:focus-visible {
  color: #E36325;
  font-weight: 160;
  outline: none;
}

.music-selector-value {
  padding: 0 1ch;
  color: #FEFFE5;
  font-weight: 160;
}

.music-root-value {
  font-weight: 320;
}

.music-theory-board,
.music-theory-keyboard {
  min-width: 0;
  overflow-x: auto;
}

.music-theory-board {
  padding-bottom: 0.5rem;
}

.music-fret-row {
  display: grid;
  grid-template-columns: 7ch repeat(12, 3ch) 1ch;
  min-width: 44ch;
  min-height: 1em;
  align-items: center;
  line-height: 1;
}

.music-fret-labels span {
  text-align: center;
}

.music-string-tuning {
  display: grid;
  grid-template-columns: 1ch 3ch 1ch;
  align-items: center;
}

.music-string-label {
  color: var(--music-note-color);
  text-align: center;
}

.music-string-label.is-on {
  font-weight: 320;
}

.music-string-label.is-off {
  font-weight: 80;
}

.music-fret-note {
  position: relative;
  width: 100%;
  min-height: 1em;
  padding-left: 1ch;
  color: var(--music-note-color);
  text-align: left;
}

.music-fret-note::before {
  content: "│";
  position: absolute;
  left: 0;
  color: #AC9D7C;
  font-weight: 80;
}

.music-fret-end {
  color: #AC9D7C;
  font-weight: 80;
}

.music-fret-note.is-open-marker::before {
  color: var(--music-marker-color);
  font-weight: 640;
}

.music-fret-note.is-harmonic::after {
  content: "│";
  position: absolute;
  top: 0;
  left: 100%;
  z-index: 1;
  color: var(--music-marker-color);
  font-weight: 640;
}

.music-fret-note.is-off {
  color: transparent;
}

.music-fret-note.is-off:hover,
.music-fret-note.is-off:focus-visible {
  color: var(--music-note-color);
  font-weight: 80;
  outline: none;
}

.music-fret-note.is-on,
.music-piano-key.is-on {
  color: var(--music-note-color);
  font-weight: 320;
}

.music-fret-note.is-on:hover,
.music-fret-note.is-on:focus-visible,
.music-piano-key.is-on:hover,
.music-piano-key.is-on:focus-visible {
  font-weight: 640;
  outline: none;
}

.music-piano-frame {
  display: grid;
  grid-template-columns: repeat(43, 1ch);
  grid-template-rows: repeat(4, 1em);
  width: 43ch;
  min-width: 43ch;
  line-height: 1;
}

.music-piano-row,
.music-piano-border {
  display: contents;
}

.music-piano-border-segment,
.music-piano-key-end {
  color: #AC9D7C;
  font-weight: 80;
  line-height: 1;
  white-space: pre;
}

.music-piano-border-segment.is-on,
.music-piano-key-end.is-on {
  color: var(--music-note-color);
  font-weight: 320;
}

.music-piano-border-segment.is-hovered,
.music-piano-key-end.is-hovered {
  color: var(--music-note-color);
  font-weight: 640;
}

.music-piano-key {
  min-height: 0;
  color: var(--music-note-color);
  line-height: 1;
  text-align: center;
}

.music-piano-sharp {
  z-index: 1;
  height: 2em;
  background: #120A1A;
  white-space: pre;
}

.music-piano-natural {
  display: grid;
  grid-template-columns: 1ch 2ch;
  grid-template-rows: repeat(2, 1em);
  height: 2em;
}

.music-piano-natural::before {
  content: "│\A│";
  grid-column: 1;
  grid-row: 1 / span 2;
  color: #AC9D7C;
  font-weight: 80;
  line-height: 1;
  white-space: pre;
}

.music-piano-natural-label {
  grid-column: 1 / span 3;
  grid-row: 2;
  text-align: center;
}

.music-piano-natural.is-on::before {
  color: var(--music-note-color);
  font-weight: 320;
}

.music-piano-natural.is-hovered {
  color: var(--music-note-color);
  font-weight: 640;
}

.music-piano-natural.is-hovered::before {
  color: var(--music-note-color);
  font-weight: 640;
}

.music-piano-natural.is-off {
  color: transparent;
}

.music-piano-natural.is-off:hover,
.music-piano-natural.is-off:focus-visible {
  color: var(--music-note-color);
  font-weight: 640;
  outline: none;
}

.music-piano-sharp.is-off {
  color: #AC9D7C;
  font-weight: 80;
}

.music-piano-sharp.is-off:hover,
.music-piano-sharp.is-off:focus-visible {
  color: var(--music-note-color);
  font-weight: 640;
  outline: none;
}

@media (max-width: 860px) {
  .music-theory-shell {
    gap: 1.5rem;
    padding-top: 2rem;
    padding-bottom: 2rem;
  }
}