html, body {
    margin: 0;
    padding: 0;
    color: white;
    font-family: Courier;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

#gameContainer {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
}
        
.message-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 10px;
    border: 2px solid #fff;
    text-align: center;
    z-index: 1000;
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

.fade-out {
    animation: fadeOut 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}