body {
  font-family: Arial, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 20px;
  background: #fafafa;
}

h1 {
  font-size: 2em;
  font-weight: bold;
  margin-bottom: 20px;
  color: #222; /* normal text */
}

#pieces-container {
  display: flex;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding: 10px;
  max-width: 700px;
  justify-content: center;
  align-items: flex-start; /* make sure children stay at natural height */

  background: #fff;
  border: 2px solid #333;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}


.piece {
  cursor: grab;
  margin: 5px;
  display: inline-block;
  border: none;
}

canvas {
  border: 2px solid black;
  margin-bottom: 10px;
  background: #fff;
}

button {
  margin-top: 10px;
  padding: 6px 14px;
  border: none;
  background: #333;
  color: white;
  font-size: 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s ease;
}

button:hover {
  background: #555;
}

.piece {
  cursor: grab;
  margin: 5px;
  display: inline-block;
  border: none;

  /* prevent flexbox/stretching */
  width: auto !important;
  height: auto !important;
  max-width: none !important;
  max-height: none !important;
}