* {
    box-sizing: border-box;
    font-family: sans-serif;
}

body {
    background-color: black;
    color: white;
}

header, main section, footer {
    background-color: hsla(0, 0%, 0%, 0.6);
}

#record-disc {
    position: fixed;
    z-index: -1;
    top: -200px;
    left: 0;
    bottom: 0;
    right: 0;
    margin: auto;
    aspect-ratio: 1 / 1;
    width: 75vw;
    border-radius: 1000px;
    border: 3px solid white;
    background-color: black;
    animation: disc-spin 5s linear 0s infinite forwards;
}

#record-disc p {
    position: absolute;
    top: 15%;
    margin-left: auto;
    margin-right: auto;
    left: 0;
    right: 0;
    transform: rotate(180deg);
    font-size: 5vw;
}

#disc-label {
    position: absolute;
    margin: auto;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    aspect-ratio: 1 / 1;
    width: 33%;
    border-radius: 1000px;
    background-color: white;
}

#disc-hole {
    position: absolute;
    margin: auto;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    aspect-ratio: 1 / 1;
    width: 20%;
    border-radius: 1000px;
    background-color: black;
}

@keyframes disc-spin {
    0% {transform: perspective(1000px) rotateX(60deg) rotateZ(0deg);}
    100% {transform: perspective(1000px) rotateX(60deg) rotateZ(360deg);}
}

h1, h2, p, ul {
    margin: 0;
    padding: 0;
}

h1, h2, p, a {
    text-align: center;
}

p, a {
    text-shadow: -2px 2px black;
}

a {
    text-decoration: none;
}

h1, h2 {
    padding: 2em 1em 1em 1em;
    text-shadow: -1px 1px chartreuse;
}

main section {
    margin-bottom: 3em;
}

main section ul {
    list-style-type: none;
}

main section ul li a {
    display: block;
    padding: 2em 1em;
    font-weight: bold;
    text-transform: uppercase;
    color: white;
}

footer {
    padding: 2em 1em;
}

footer p a {
    color: chartreuse;
}

@media screen and (min-width: 800px) {

    #content {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        max-width: 1200px;
        height: 750px;
        margin: 40px auto auto auto;
    }

    main {
        display: flex;
    }

    main section {
        flex: 1;
        margin: 0;
    }

    h1, h2 {
        text-align: left;
    }

    main section ul li a {
        padding: 2em 2em;
        text-align: right;
        transition: all 0.25s ease-in-out;
    }

    main section ul li a:hover {
        text-shadow: -2px 3px black;
        transform: translateY(-2px);
        color: chartreuse;
    }

    footer {
        position: relative;
        bottom: 0;
    }

    footer p a:hover {
        text-shadow: none;
        text-decoration: underline;
    }
}