body {
  font-family: Arial, sans-serif;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
  background-color: #f0f0f0;
}
#game-container {
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}
.game-board-grid {
  display: grid;
  grid-template-columns: repeat(15, 1fr);
  width: 450px; /* 15 * 30px */
  height: 450px; /* 15 * 30px */
  border: 1px solid black;
  margin-top: 20px;
}
.board-cell {
  width: 30px;
  height: 30px;
  border: 1px solid #ccc;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}
.board-cell:hover {
  background-color: #e0e0e0;
}
.board-cell > div {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid #333;
}
.last-move {
  box-shadow: 0 0 5px 3px rgba(255, 255, 0, 0.7); /* Yellow glow */
}
#messages {
  margin-top: 10px;
  font-size: 0.9em;
  color: #555;
}
#player-info {
  margin-top: 10px;
  font-weight: bold;
}