:root {
  --page-bg: #f6f6f6;
  --text: #111;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--page-bg);
  color: var(--text);
}

.app {
  /*
    Sized to fit the 4-octave keyboard (C2 start) without horizontal scrolling.
    (The 5-octave view will still scroll, as intended.)
  */
  max-width: 1260px;
  margin: 24px auto;
  padding: 16px;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 14px;
}

/* scale/chord highlighter on the left + right-side panels */
.topbar .scaleChordRow {
  flex-basis: 100%;
  width: 100%;
  display: flex;
  gap: 12px 16px;
  align-items: stretch;
  flex-wrap: wrap; /* allows stacking on smaller screens */
}

/* Left panel (highlighter) stays content-sized */
.topbar .scaleChordPanel {
  flex: 0 0 auto;
  width: fit-content;
  max-width: 100%;
  align-self: stretch;
}

/* Right column: stacks "Currently displayed" + "Keyboard Controls" */
.topbar .rightPanels {
  flex: 1 1 360px;
  min-width: 320px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-self: stretch;
  height: 100%;
}

/* Make the 'Currently displayed' panel grow so the *combined* right column height
   matches the left panel, keeping the layout symmetrical. */
.topbar .rightPanels .analysis {
  flex: 1 1 auto;
  margin-top: 0;
  display: flex;
  flex-direction: column;
}

/* Controls panel sits under the analysis panel */
.topbar .rightPanels .controlsPanel {
  flex: 0 0 auto;
  margin-top: 0;
}

/* Remove extra top spacing when panels live in the topbar row */
.topbar .chordsPanel { margin-top: 0; }



.control label {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
  opacity: 0.85;
}

.colorPicker {
  width: 56px;
  height: 38px;
  padding: 0;
  border: 1px solid #ccc;
  border-radius: 10px;
  background: white;
  cursor: pointer;
}

select {
  height: 38px;
  padding: 0 10px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.2);
  background: white;
  cursor: pointer;
  font-weight: 600;
}

.swatches {
  display: flex;
  gap: 8px;
  align-items: center;
}

.swatch {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,0.2);
  cursor: pointer;
  background: #ddd;
}
.swatch:focus {
  outline: 2px solid rgba(0,0,0,0.35);
  outline-offset: 2px;
}

button {
  height: 38px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.2);
  background: white;
  cursor: pointer;
  font-weight: 700;
}
button:active { transform: translateY(1px); }

.btnSubtle {
  font-weight: 700;
  opacity: 0.9;
}

.segmented {
  display: inline-flex;
  border: 1px solid rgba(0,0,0,0.2);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
}

.segBtn {
  border: 0;
  border-right: 1px solid rgba(0,0,0,0.12);
  border-radius: 0;
  height: 38px;
  padding: 0 12px;
  background: transparent;
  font-weight: 800;
  cursor: pointer;
}
.segBtn:last-child { border-right: 0; }
.segBtn.isActive {
  background: rgba(0,0,0,0.06);
}

.fingerControl {
  min-width: 320px;
}

.fingerRow {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.checkInline {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  opacity: 0.9;
  user-select: none;
}
.checkInline input { transform: translateY(1px); }

.scalebar {
  display: flex;
  gap: 10px;
  align-items: end;
  flex-wrap: wrap;
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.stage {
  background: white;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 16px;
  padding: 14px;
}

.mount {
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 4px;
}

/* analysis panel */
.analysis {
  margin-top: 14px;
  background: white;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 16px;
  padding: 14px;
}

.analysisHeader {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
}

.analysisTitle {
  font-size: 16px;
  font-weight: 800;
}

.analysisSubtitle {
  font-size: 13px;
  opacity: 0.75;
}

.analysisGrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.analysisCard {
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 14px;
  padding: 12px;
  background: #fbfbfc;
  min-height: 72px;
}

.analysisCardWide {
  grid-column: 1 / -1;
}

/* If the wide chord card is used outside the analysis grid, don't force it to span columns */
.currentChordPanel .analysisCardWide {
  grid-column: auto;
}

.analysisLabel {
  font-size: 12px;
  opacity: 0.75;
  margin-bottom: 8px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.analysisBody {
  font-size: 14px;
  line-height: 1.45;
  word-break: break-word;
}

.chordList {
  margin: 0;
  padding-left: 18px;
}
.chordList li { margin: 4px 0; }
.chordPrimary { font-weight: 900; }
.chordAlt { opacity: 0.85; }
.muted { opacity: 0.75; }

@media (max-width: 980px) {
  .analysisGrid { grid-template-columns: 1fr; }
  .analysisCardWide { grid-column: auto; }
  .fingerControl { min-width: 0; width: 100%; }
}

.hint {
  margin-top: 10px;
  font-size: 13px;
  opacity: 0.8;
}

.endnotes {
  margin: 10px auto 0;
  max-width: 1260px;   /* match .app width */
  font-size: 13px;
  opacity: 0.8;
  text-align: center;
}


/* chord panel */
.chordsPanel {
  margin-top: 14px;
  background: white;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 16px;
  padding: 14px;
}

.chordsHeader {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
}

.chordsTitle {
  font-size: 16px;
  font-weight: 800;
}

.chordsSubtitle {
  font-size: 13px;
  opacity: 0.75;
}

.chordbar {
  display: flex;
  gap: 10px;
  align-items: end;
  flex-wrap: wrap;
  margin-top: 10px;
}

.app-title {
  text-align: center;
  font-size: 42px;
  font-weight: 700;
  margin: 26px 0 18px;
  letter-spacing: 0.5px;
}

.app-subtitle {
  font-size: 14px;
  font-weight: 400;
  opacity: 0.7;
  margin-top: 10px;
}

.hidden {
  display: none;
}