body {
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  background: linear-gradient(135deg, #74ebd5, #9face6);
}

.container {
  text-align: center;
  background: white;
  padding: 20px;
  border-radius: 20px;
  box-shadow: 0px 4px 15px rgba(0,0,0,0.2);
}

h1 {
  margin-bottom: 20px;
}

#game-board {
  display: grid;
  grid-template-columns: repeat(3, 100px);
  grid-gap: 10px;
  margin-bottom: 20px;
}

.cell {
  width: 100px;
  height: 100px;
  background: #f2f2f2;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2.5rem;
  font-weight: bold;
  cursor: pointer;
  border-radius: 10px;
  transition: background 0.3s;
}

.cell:hover {
  background: #e6e6e6;
}

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

#reset {
  padding: 10px 20px;
  border: none;
  background: #4cafef;
  color: white;
  border-radius: 10px;
  cursor: pointer;
  transition: 0.3s;
}

#reset:hover {
  background: #3a9bdc;
}