body {
  font-family: Arial, sans-serif;
  background: #834a29;
  color: #e5e7eb;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.game {
  text-align: center;
}

.board {
  display: grid;
  grid-template-columns: repeat(3, 100px);
  gap: 10px;
  margin: 20px 0;
}

.cell {
  width: 100px;
  height: 100px;
  background: #1e293b;
  font-size: 2.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.cell:hover {
  background: #334155;
}

.cell.disabled {
  cursor: not-allowed;
  background: #020617;
}

button {
  padding: 10px 20px;
  font-size: 1rem;
  cursor: pointer;
}