#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    display: none;
    flex-direction: column;
    color: white;
    font-family: Arial, sans-serif;
    }
    
    .logo-flip {
    width: 100px;
    height: 100px;
    animation: flip 1.5s infinite;
    border-radius: 20%;
    }
    
    @keyframes flip {
    0% {
        transform: perspective(1000px) rotateY(0);
    }
    50% {
        transform: perspective(1000px) rotateY(180deg);
    }
    100% {
        transform: perspective(1000px) rotateY(360deg);
    }
    }
    
    .wait-message {
    margin-top: 20px;
    font-size: 1.5rem;
    }