body {
  font-family: sans-serif;
  background-color: #f0f0f0;
  text-align: center;
  padding-top: 50px;
}

.container {
  display: inline-block;
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

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

.cell {
  width: 100px;
  height: 100px;
  background-color: #e0e0e0;
  font-size: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 8px;
  transition: background-color 0.2s;
}

.cell:hover {
  background-color: #d0d0d0;
}

.cell.taken {
  cursor: not-allowed;
}

#status {
  font-weight: bold;
  margin: 15px 0;
}

button {
  padding: 10px 20px;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

button:hover {
  background-color: #0056b3;
}