25/assets/app.css

body {
    background: #222;
    margin: 0;
    background-image: linear-gradient(
        175deg,
        #212223,
        #222 350px,
        #302928 345px,
        #282828
    );
    font-family:
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Oxygen,
        Ubuntu,
        Cantarell,
        "Open Sans",
        "Helvetica Neue",
        sans-serif;
}

h1 {
    font-size: 1.75em;
    letter-spacing: -0.066em;
}

h2 {
    font-size: 1.33em;
}

p,
li {
    line-height: 1.66em;
}

h3,
h4 {
    font-size: 1em;
}

main {
    margin: 0 0 0 13em;
    max-width: 37em;
}

.cards {
    display: flex;
    flex-direction: column;
    gap: 1.33em;
}

.card {
    background-color: #fff;
    border: 2px solid #444;
    padding: 3em;
    border-radius: 9px;
    box-shadow: 0 0 5px #000;

    :first-child {
        margin-top: 0;
    }

    :last-child {
        margin-bottom: 0;
    }

    &.collapsed {
        border-top-left-radius: 0;
        border-top-right-radius: 0;
    }
}

pre {
    padding: 0.5em;
    background-color: #1e2025;
    color: #96df71;
    position: relative;
    margin: 1em 2em;
    overflow-y: auto;

    button {
        position: absolute;
        top: 2px;
        right: 2px;
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.breadcrumbs {
    border-radius: 8px 8px 0 0;
    padding: 1em;
    > .trail > span::after {
        content: "/";
    }
    background: #080808;
    background-image: linear-gradient(
        #080808 0,
        #080808 50%,
        #161616 50%,
        #080808 100%
    );
    color: #fff;

    a {
        color: #fff;
    }
}

.head {
    color: #fff;
    background-color: #345;

    padding: 1em 2em;
    border-radius: 0 0 8px 8px;
    margin-bottom: 1.5em;

    :first-child {
        margin-top: 0;
    }

    a {
        color: #fff;
    }
}

.skiplink {
    position: absolute;
    top: -1.75em;
    left: 1em;
    background-color: #ff0;
    color: #000;
    text-decoration: none;
    padding: 0.25em;
    transition: top 0.25s ease-out;

    &:focus {
        top: 1em;
    }
}

nav {
    display: flex;
    margin: 2em 0 1em;

    > ul {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        gap: 1.5em;
        background: #111;
        padding: 0.33em 1.5em 0.25em;
        border-radius: 0 1.33em 1.33em 0;
        border: 2px solid #333;
        border-left-width: 0;
        padding-left: 13em;
    }

    a {
        text-decoration: none;
        color: #fff;
        line-height: 1;
    }
}

.anders {
    img {
        position: fixed;
        top: 1em;
        left: 1em;
        aspect-ratio: 1;
        border-radius: 50%;
        width: 175px;

        &:hover {
            animation: 1s ease-out 0s infinite alternate burst;
        }
    }

    img + img {
        top: 12.5em;
        left: 5em;
        width: 125px;
    }

    img + img + img {
        top: 18.5em;
        left: 0.5em;
        width: 90px;
    }
}

.bookmarks {
    display: flex;
    flex-direction: column;
    gap: 2em;
}

@keyframes burst {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(0.8);
    }
}