index.css

:root {
    --highlight: var(--orange);
    --highlight-dim: #EA5C1F1a;


    --blue: #00ABE7;
    --dark-blue: #0037e7;
    --orange: #EA5C1F;
    --green: #00e7b0;
    --purple: #b615ff;

    --primary: #F6F5F4;
    --secondary: #1C1F21;
    --tertiary: #f9d0bf;
    --quaternary: var(--secondary);
    --quinary: #45505E;
}


@media (prefers-color-scheme:dark) {
    :root {
        --highlight: var(--blue) !important;
        --highlight-dim: #00ABE71a;

        --primary: #1A1E23;
        --secondary: #EFEDE6;
        --tertiary: #232C37;
        --quaternary: #E7E4DA;
        --quinary: #BFB8B0;
        --senary: #415166;
    }
}

html {
    background: linear-gradient(135deg, var(--tertiary) 13.54%, var(--primary) 62.5%);
    background-color: var(--primary);
}

body {
    color: var(--quinary);
    max-width: 600px;
    padding: 7rem 20px 3.5rem 20px;
    margin: 0 auto;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 2;
}

p {
    margin-top: 0;
}

nav {
    margin: 0 0 0.5rem 0;
}

footer {
    margin: 0.5rem 0 0 0;
}

a,
a:visited {
    color: var(--highlight);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

nav a,
nav a:visited,
footer a,
footer a:visited {
    transition: 100ms linear;
    color: var(--quinary);
    margin: 0 0.5rem 0 0;
}

nav a:hover,
footer a:hover {
    text-decoration: none;
    color: var(--highlight);
}

h1,
h2,
h3 {
    margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin-bottom: 0 !important;
    color: var(--quaternary);
}

*:target {
    padding: 0.25rem 0 0.25rem 1rem;
    border-left: 2px solid var(--highlight);
}

#logo {
    display: inline-block;
    height: 1.25rem;
    width: 1.25rem;
    margin: 0 1rem 0 0;
    background-color: var(--highlight);
}

blockquote {
    margin: 1rem 0;
    font-style: italic;
    padding: 0.5rem 1rem;
}

@media screen and (max-width: 800px) {
    body {
        padding: 20px;
    }

    blockquote {
        margin: 0;
    }
}

cite {
    display: block;
}

pre {
    border: 2px solid var(--highlight-dim);
    padding: 10px 20px;
    border-radius: 6px;
}

pre code {
    color: var(--secondary);
    margin: 0;
    padding: 0;
    background-color: transparent;
}

code {
    background-color: var(--highlight-dim);
    color: var(--highlight);
    padding: 0.25rem;
    border-radius: 6px;
}

pre span[id] {
    display: inline-block;
    margin: 0.25rem 0;
}

img,
video {
    max-width: 100%;
    max-height: 600px;
    display: block;
    background-color: var(--tertiary);
}


.divider {
    margin: 0 auto;

    text-align: center;
    font-style: italic;
    font-size: 30pt;
    color: var(--quinary);

    display: block;
}

::selection {
    background-color: var(--highlight);
    color: var(--primary);
}