/* styles.css */
body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #ff9a9e, #fad0c4);
    overflow: hidden;
    position: relative;
    animation: backgroundColorChange 30s infinite alternate;
  }
  
  @keyframes backgroundColorChange {
    0% {
      background: linear-gradient(135deg, #ff9a9e, #fad0c4);
    }
    10% {
      background: linear-gradient(135deg, #a1c4fd, #c2e9fb);
    }
    20% {
      background: linear-gradient(135deg, #ffecd2, #fcb69f);
    }
    30% {
      background: linear-gradient(135deg, #ff9a9e, #fecfef);
    }
    40% {
      background: linear-gradient(135deg, #a18cd1, #fbc2eb);
    }
    50% {
      background: linear-gradient(135deg, #fad0c4, #ffd1ff);
    }
    60% {
      background: linear-gradient(135deg, #fbc2eb, #a18cd1);
    }
    70% {
      background: linear-gradient(135deg, #ffecd2, #fcb69f);
    }
    80% {
      background: linear-gradient(135deg, #c2e9fb, #a1c4fd);
    }
    90% {
      background: linear-gradient(135deg, #fad0c4, #ff9a9e);
    }
    100% {
      background: linear-gradient(135deg, #ff9a9e, #fad0c4);
    }
  }
  
  .title-bar {
    position: absolute;
    top: 0;
    width: 100%;
    padding: 20px;
    text-align: center;
    font-size: 24px;
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    z-index: 2;
  }
  
  .footer-bar {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 10px;
    text-align: center;
    font-size: 14px;
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    z-index: 2;
  }
  
  #game {
    text-align: center;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    padding: 20px;
    position: relative;
    z-index: 1;
  }
  
  #board {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    grid-template-rows: repeat(3, 100px);
    gap: 5px;
    margin-bottom: 20px;
  }
  
  .cell {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100px;
    height: 100px;
    background-color: #fff;
    border: 2px solid #ddd;
    border-radius: 10px;
    font-size: 24px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s;
  }
  
  .cell:hover {
    background-color: #f0f0f0;
    transform: scale(1.05);
  }
  
  .cell.x::after {
    content: 'X';
    color: #ff6347;
    font-size: 2em;
    animation: pop-in 0.3s;
  }
  
  .cell.o::after {
    content: 'O';
    color: #4682b4;
    font-size: 2em;
    animation: pop-in 0.3s;
  }
  
  @keyframes pop-in {
    0% {
      transform: scale(0);
    }
    100% {
      transform: scale(1);
    }
  }
  
  #status {
    margin-bottom: 10px;
    font-size: 20px;
  }
  
  #restart {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    background-color: #fff;
    border: 2px solid #ddd;
    border-radius: 5px;
    transition: background-color 0.3s;
  }
  
  #restart:hover {
    background-color: #f0f0f0;
  }
  
  .background-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
  }
  
  @keyframes move-bg {
    0% {
      transform: translateX(0);
    }
    100% {
      transform: translateX(-100%);
    }
  }
  
  .background-animation::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 100%;
    background: linear-gradient(to right, rgba(255, 255, 255, 0.2) 25%, rgba(255, 255, 255, 0) 50%, rgba(255, 255, 255, 0.2) 75%);
    animation: move-bg 20s linear infinite;
  }
  
  .confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: #ff6347;
    animation: fall 2s linear infinite;
  }
  
  @keyframes fall {
    0% {
      transform: translateY(-100vh);
      opacity: 1;
    }
    100% {
      transform: translateY(100vh);
      opacity: 0;
    }
  }
  
  @keyframes confetti-animation {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }