* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background: linear-gradient(to top, #87CEFA, #00BFFF);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  text-align: center;
}

h1 {
  color: white;
  margin-bottom: 20px;
}

#scoreboard {
  font-size: 20px;
  color: white;
  margin-bottom: 20px;
}

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

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

.cell.X {
  color: #ff6347; /* Tomato color for X */
}

.cell.O {
  color: #4682b4; /* SteelBlue color for O */
}

button {
  background-color: #ff8c00;
  color: white;
  padding: 10px 20px;
  border: none;
  cursor: pointer;
  font-size: 16px;
  border-radius: 5px;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #e07b00;
}