body {
  font-family: sans-serif;
  text-align: center;
  background: #2a2a2a;
  padding: 20px;
}

h1 {
  color: #fff;
}

.controls {
  margin-bottom: 30px;
}

.controls label {
  color: #fff;
  margin-right: 10px;
  font-size: 16px;
}

.controls select {
  padding: 8px 12px;
  font-size: 14px;
  border-radius: 5px;
  border: none;
  background: #fff;
  color: #333;
  cursor: pointer;
}

.piano {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  margin-top: 50px;
  background: #111;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
}

.key {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid #222;
  border-radius: 5px;
  user-select: none;
  transition: all 0.05s;
  position: relative;
  min-height: 1em;
}

/* Sharp keys may show Carnatic swara labels if they correspond to the chosen scale */
.key.sharp.sa-root {
  color: #fff;
  font-size: 14px;
}

.key.has-label .key-label {
  position: relative;
  display: inline-flex;
}

.key.has-label .key-label sub {
  font-size: 0.65em;
  display: inline-block;
  vertical-align: text-bottom;
  line-height: 1;
  position: relative;
  top: 0.18em;
}

.key.lower.has-label .key-label::after,
.key.upper.has-label .key-label::after {
  position: absolute;
  content: '•';
  font-size: 12px;
  color: currentColor;
  pointer-events: none;
  left: 50%;
  transform: translateX(-50%);
}

.key.black.has-label .key-label::after {
  color: #777;
}

.key.lower.has-label .key-label::after {
  top: 100%;
  margin-top: -2px;
}

.key.upper.has-label .key-label::after {
  bottom: 100%;
  margin-bottom: -5px;
}

/* White keys */
.key.white {
  width: 60px;
  height: 250px;
  background: linear-gradient(135deg, #fff 0%, #f5f5f5 100%);
  color: #333;
  margin: 0 -1px;
  padding-bottom: 15px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.4), inset 0 -1px 3px rgba(0, 0, 0, 0.1);
}

.key.white:active {
  background: linear-gradient(135deg, #e0e0e0 0%, #d5d5d5 100%);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5), inset 0 1px 3px rgba(0, 0, 0, 0.2);
  transform: translateY(2px);
}

/* Black keys */
.key.black {
  width: 40px;
  height: 160px;
  background: linear-gradient(135deg, #222 0%, #111 100%);
  color: #fff;
  position: relative;
  z-index: 10;
  margin: 0 -20px;
  padding-top: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.8), inset 0 1px 2px rgba(255, 255, 255, 0.1);
  align-self: flex-start;
}

.key.black:active {
  background: linear-gradient(135deg, #111 0%, #000 100%);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.9), inset 0 1px 2px rgba(255, 255, 255, 0.05);
  transform: translateY(2px);
}

.key.sa-root.white {
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.4), inset 0 -1px 3px rgba(0, 0, 0, 0.1);
}

.key.sa-root.black {
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.8), inset 0 1px 2px rgba(255, 255, 255, 0.1);
}

.key.sa-root:not(.sharp) {
  color: #d84315;
  font-weight: 700;
}