* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
}

body {
  background: #f4f4f4;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  text-align: center;
}

h1 {
  margin-bottom: 20px;
  color: #333;
}

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

.cell {
  width: 100px;
  height: 100px;
  background: #fff;
  border: 2px solid #444;
  font-size: 2.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: background 0.2s ease;
}

.cell:hover {
  background: #eee;
}

.status {
  margin-bottom: 15px;
  font-size: 1.2rem;
  color: #222;
}

button {
  padding: 10px 20px;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  background: #007bff;
  color: white;
  border-radius: 5px;
}

button:hover {
  background: #0056b3;
}