body {
  font-family: "Work Sans", sans-serif;
  background-color: #000000; /* Tomorrow AMOLED background - pure black */
  color: #ffffff; /* White text for contrast */
  padding: 1rem;
  line-height: 1.5;
}

#chord-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.chord-card {
  border: 1px solid #2a2a29; /* Very dark border, almost invisible */
  border-radius: 8px;
  padding: 1rem;
  background-color: #111111; /* Very dark card background */
  width: max-content;
}

.chord-card h2 {
  margin-top: 0;
  font-size: 1.2rem;
  color: #ffffff; /* White heading */
}

.fretboard {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  margin-left: .5rem;
  border: .5px;
  background-color: #222222; /* Dark fretboard background */
}

.fretboard .fret {
  background-color: #111111!important; /* Very dark fret */
}

.fret-row {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: stretch;
  gap: 2px;
}

.fret {
  width: 2.1rem;
  height: 1.6rem;
  box-sizing: border-box;
  border: .5px solid #333333; /* Dark fret border */
  border-left: 2px solid #222222;
  border-right: 2px solid #222222;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  text-align: center;
  line-height: 1.6rem;
  font-weight: bold;
  background-color: #2a2a2a; /* Darker fret */
  position: relative;
  color: transparent;
}

.fret[data-dot]::after {
  content: '';
  width: 0.55rem;
  height: 0.55rem;
  background-color: #ffcd56; /* Tomorrow Yellow - bright accent */
  border: 1px solid #f7bb33;
  border-radius: 50%;
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: rgba(255, 205, 86, 0.7);
  border-color: #f7bb33;
}

.fret:empty {
  background-color: #2a2a2a; /* Darker empty fret */
}

.alternatives {
  margin-top: 1rem;
}

.alternatives h3 {
  color: #ffffff; /* White alternative heading */
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.alternatives-container {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.alternative-fretboard {
  margin-inline: 1.8rem;
}

.alternative-fretboard .fret {
  width: 1.8rem;
  height: 1.3rem;
}