body {
  font-family: Arial, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem;
  background-color: #f5f5f5;
}
 .palette {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}
 .color-swatch {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  position: relative;
  cursor: pointer;
}
 .color-code {
  position: absolute;
  bottom: 0.5rem;
  left: 0.5rem;
  background: rgba(255, 255, 255, 0.8);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9rem;
  user-select: none;
}
 button {
  padding: 0.5rem 1rem;
  font-size: 1rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}