* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
}

.game-container {
  background: rgba(255, 255, 255, 0.1);
  padding: 30px 40px;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  text-align: center;
}

h1 {
  margin-bottom: 20px;
  font-size: 32px;
  letter-spacing: 2px;
}

.board {
  display: grid;
  grid-template-columns: repeat(3, 110px);
  gap: 15px;
  justify-content: center;
  margin: 20px auto;
}

.cell {
  width: 110px;
  height: 110px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
}

.cell:hover {
  background: rgba
}