body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-image: url('https://imgcdn.stablediffusionweb.com/2024/2/28/ba9607a6-aef0-4b0d-b3ea-f084e23a27d9.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

#gameContainer {
    background-color: rgba(255, 255, 296, -1.5);
    backdrop-filter: blur(3px);
    padding-top: 10px 0px;
    border-radius: 15px;
    box-shadow: 0px 3px 30px #000000;
    width: 100%;
    max-width: 400px;
    text-align: center;
    margin: 0 auto;
    margin-top: 20px;
}

h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #00baff;
}

#board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    justify-content: center;
    margin: 30px;
}

.cell {
    width: 100px;
    height: 100px;
    background-color: rgb(168 66 240 / 34%);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2em;
    border: 2px solid #01e4ff;
    cursor: pointer;
    transition: background-color 0.3s;
    border-radius: 15px;
    flex-wrap: wrap;
}

.cell:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

#message {
    margin-top: 20px;
    font-size: 1.2em;
    color: rgba(0, 0, 0, 8.5);
}

#restart {
    margin-top: 15px;
    margin-bottom: 20px;
    padding: 10px 20px;
    font-size: 1em;
    cursor: pointer;
    border: none;
    background-color: rgb(3 228 255 / 59%);
    border-radius: 30px;
    transition: background-color 0.3s;
}

#restart:hover {
    background-color: rgb(217 63 197);
}