#logo {
    max-width: 400px;
    width: 100%;
    height: auto; 
    margin: 150px auto 0 auto;

    justify-content: center;
    align-items: center;
}
#nameImage {
    width: 100%;
    display: block;
    position: relative;
    overflow: hidden;
    transition: all 0.2s ease-in-out;
    transform-origin: center center;
    cursor: pointer;
    animation: jump 3s ease-in-out infinite;
    z-index: 1;
}
#shadow {
    filter: blur(5px);
    width: 35%;
    display: block;
    position: relative;
    overflow: hidden;
    transition: all 0.2s ease-in-out;
    transform-origin: center center;
    cursor: pointer;
    margin: auto;
    z-index: 0;
}
#nameImage.pressed {
    transform: scale(0.95);
    filter: brightness(0.7);
}
#nameImage:active {
    filter: brightness(0.5);
}

#backgroundImage {
    position: fixed;
    top: -300px;
    left: 0;
    width: 100%;
    height: 120%;
    object-fit: cover;
    object-position: top;
    z-index: -1;

    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 70%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 50%, transparent 100%);

    filter: blur(5px);
    transform: translateY(var(--parallax-offset, 0));
    transition: all 1s ease-in-out;
    animation: fadeIn 3s ease-in-out forwards;
    will-change: transform;
}
#backgroundImage.hidden {
    transform: translateY(calc(var(--parallax-offset, 0) - 100px));
    filter: blur(30px) brightness(50%);
} 

@keyframes jump {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(20px);
    }
    100% {
        transform: translateY(0);
    }
}
@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}