body {
    position: relative;
}

:root {
    --scale: 1;
}

article {
    padding-top: 110px;
}

.mainlogo {
    margin-left: 0px;
}
#aU, #Center, #aZ{
 color: rgba(113, 113, 113);
 /* color: rgba(0,0,0,0.3) */
}
#AC{
    color:rgba(0,0,0,0);
}
footer {
    position: relative;
    /* bottom:0px;
            left:0px; */
    background: rgba(52, 53, 54, 0.5);
    padding: 10px 0px;
    width: 100%;
    border-top: 1.5px solid rgba(255, 255, 0, 0.2);
}

@media screen and (max-width:768px) {
    article {
        padding-top: 115px;
    }

    footer {
        position: relative;
        margin-top: 3em;
    }
}

.card:hover {
    cursor: pointer;
}

/* siteGuide */
.siteGuide {
    margin: 0px auto 1em;
    color: black;
    font-size: 1.5em;
}

.siteGuide p {
    font-size: 1em;
    color: #eee;
}

.siteGuide p kbd {
    border: 1px solid #aaa;
    background: transparent;
    color: #eee;
    padding: 0 0.3em;
    margin: 0 0.2em 0.1em;
}

.siteGuide p kbd kbd {
    border: none;
}

.siteGuide .accessKeyDefine {
    padding: 1em 2em;
    background: #eee;
    border-radius: 6px;
}

.siteGuide .accessKeyDefine li {
    margin-bottom: 0.2em;
}

#sitemap div a {
    font-size: 1.5em;
    border: 1px solid #aaa;
    border-radius: 5px;
    background: #333;
    color: #eee;
    text-decoration: none;
    padding: .2em;
}

#sitemap div a:hover {
    background: #198754;
}

/*for tracker*/
#ball {
    width: 1em;
    aspect-ratio: 1;
    background-color: red;
    border: 1px solid transparent;
    border-radius: 100%;
    pointer-events: none;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 99999;
    transform: translate3d(var(--mouseX, 0), var(--mouseY, 0), 0) translate(-50%, -50%);
    transition: 0.5s ease-out;
    transition-property: transform, width, border, background-color;
}

body:has(button:hover) #ball,
body:has(a:hover) #ball {
    width: 5em;
    border-width: 3px;
    background-color: transparent;
    border-color: rgb(255 0 0 / 50%);
}

@media (prefers-reduced-motion: reduce) {
    #ball {
        display: none;
    }
}

@media(pointer:coarse) {
    #ball {
        display: none;
    }
}