#puzzle-container {
  margin: 20px auto;
  display: flex;
  flex-wrap: wrap;
  border: 2px solid #333;
  position: relative;
  transition: all 0.3s ease;
}

.piece {
  box-sizing: border-box;
  border: 1px solid #ccc;
  background-repeat: no-repeat;
  cursor: grab;
}

html, body {
  touch-action: none;       /* Désactive les comportements tactiles natifs */
  overscroll-behavior: none; /* Évite les rebonds/scroll */
  user-select: none;
  margin: 0;
  padding: 0;
}

.piece {
  user-select: none;
}