body {
  font-family: Arial, Helvetica, sans-serif;
  background: #ffffff;
  color: #111111;
  margin: 0;
}

.page {
  max-width: 900px;
  margin: 40px auto;
  padding: 0 20px 40px;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 24px;
}

#stage-parent {
  margin-bottom: 20px;
}

#konva-stage {
  width: 720px;
  height: 420px;
  border: 1px solid #cccccc;
  background: #f8f8f8;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

button {
  padding: 10px 16px;
  font-size: 1rem;
  cursor: pointer;
  border: 1px solid #111111;
  background: #ffffff;
}

button:hover {
  background: #f0f0f0;
}

.input-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

label {
  font-size: 1rem;
}

input[type="number"] {
  width: 70px;
  padding: 8px;
  font-size: 1rem;
  border: 1px solid #111111;
}

.current-readout,
.mapping-guide {
  margin: 8px 0;
  font-size: 1rem;
}

#colourName {
  font-weight: 700;
}