body {
    width: 100%;
    height: 100vh;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    background: url('../images/back8.png') center center / cover no-repeat fixed;
    overflow: hidden;
    opacity: 0;
    transition: opacity .5s ease-in-out;
}

#graph {
    width: 90vw; 
    height: 90vh;
    border-radius: 20px;
    box-shadow: 10px 10px 20px #9b9eab, -10px -10px 20px #b7b5b5, inset 1px 1px 2px rgba(255, 255, 255, 1), inset -1px -1px 2px rgba(255, 255, 255, 1);
    background: url('../images/space3.png') center center / cover no-repeat fixed;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

#graph svg {

    display: block;
    width: 99%;
    height: 99%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.node {
    fill: #6688cc;
    stroke: #fff;
    stroke-width: 1.5px;
}

.node:hover {
    stroke: #000;
    stroke-width: 2px;
}

.link {
    stroke: #b6abcc;
    stroke-opacity: 0.75;
}

#earth-button-container2 {
    top: 3vw;
    left: 3vw;
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    margin-bottom: 20px;
    width: 6vw;
    height: 6vw;
    border-radius: 50%;
    box-shadow: 
        10px 10px 20px #9b9eab, 
        -10px -10px 20px #b7b5b5, 
        inset 1px 1px 2px rgba(255, 255, 255, 1),
        inset -1px -1px 2px rgba(255, 255, 255, 1); 
}

.button-style2 {
    width: 100%; 
    height: 100%; 
    cursor: pointer;
    display: flex; 
    justify-content: center;
    align-items: center;
}

.button-style2 img {
    width: auto; 
    height: 100%; 
    object-fit: contain;
    transition: transform 0.1s ease; 
}

.button-label2 {
    font-family: 'Orbitron', sans-serif;
    font-weight: bold;
    position: absolute;
    top: 50%; 
    left: 50%; 
    transform: translate(-50%, -50%); 
    color: white; 
    font-size: 1.5vw; 
    pointer-events: none; 
}

.button-style2:hover {
    transform: scale(1.1); 
    transition: transform 0.2s;
}

.button-style2:active {
    transform: scale(0.9); 
    transition: transform 0.2s;
}

.button-style3:hover {
    transform: scale(1.22); 
    transition: transform 0.2s;
}

.button-style3:active {
    transform: scale(0.8); 
    transition: transform 0.2s;
}