body {
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(135deg, #4facfe, #00f2fe);
  margin: 0;
}

.game-container {
  text-align: center;
  background: #fff;
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

h1 {
  margin-bottom: 20px;
  font-size: 2rem;
}

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

.cell {
  width: 100px;
  height: 100px;
  background: #f1f1f1;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2.5rem;
  cursor: pointer;
  border-radius: 10px;
  transition: 0.2s;
}

.cell:hover {
  background: #e1e1e1;
}

.status {
  font-size: 1.2rem;
  margin: 10px 0;
}

button {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  background: #28a745;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  margin: 10px;
}

button:hover {
  opacity: 0.9;
}