body {
  font-family: Arial, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background-color: #f0f0f0;
  margin: 0;
}

#game-board {
  display: grid;
  grid-template-columns: repeat(3, 100px);
  grid-template-rows: repeat(3, 100px);
  gap: 5px;
  margin: 20px;
}

.cell {
  width: 100px;
  height: 100px;
  background-color: #fff;
  border: 2px solid #333;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3em;
  cursor: pointer;
  user-select: none;
}

.cell:hover {
  background-color: #e9e9e9;
}

#controls button {
  padding: 10px 20px;
  font-size: 1em;
  margin: 0 10px;
  cursor: pointer;
}

#status-display {
  font-size: 1.2em;
  font-weight: bold;
}