:root {
    --background-color: black;
    --primary-color: white;
    --secondary-color: #ccc;
    --accent-color: rgb(93,230,255);
    
    /* --background-color: white; 
    --primary-color: black;
    --secondary-color: #666;
    --heading-color: #666;
    --accent-color: rgb(60, 72, 84); */
    
    --link-color: var(--accent-color);
    --body-copy-font-family: serif;
    --heading-font-family: sans-serif;
}

body {
    background-color: var(--background-color);
    color: var(--primary-color);
    font-family: var(--body-copy-font-family);
    margin: 0 auto 10rem;
    max-width: 768px;
    padding: 2rem 1rem 768px;
}

body header {
    font-family: monospace;
    margin-bottom: 60px;
    opacity: 0.6;
    font-size: large;
}

a:link {
    color: var(--link-color);
}
a:visited {
    color: var(--primary-color);
}

h1 {
    color: var(--heading-color);
    font-family: var(--heading-font-family);
}

h2 {
    color: var(--heading-color);
    font-family: var(--heading-font-family);
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-left: 1rem;
}

h3,
h4,
h5,
h6 {
    color: var(--heading-color);
    font-family: var(--heading-font-family);

    padding-left: 1rem;
}

article {
    font-family: var(--body-copy-font-family);
}

.post_layout article h1 {
    font-size: 2em;
}

article p {
    padding-left: 1rem;
}

article div.highlight {
    padding-left: 1rem;
}

article div.footnotes {
    border-top: 1px dotted var(--primary-color);
    margin-top: 2rem;
}

article footer {
    margin-top: 1rem;
}

blockquote {
    border-left: 1px dotted var(--secondary-color);
    font-style: italic;
}

footer {
    margin-top: 4rem;
    opacity: 0.6;
    text-align: center;
}

ul.contact {
    padding: 0;
}
ul.contact li {
    list-style-type: none;
    display: inline;
    text-transform: lowercase;
}

ul.contact li:nth-child(n + 2):before {
    content: "| ";
}

ul.article-list li {
    margin-top: 1rem;
}

section#bio {
    border: 0px solid var(--primary-color);
    min-height: 280px;
    display: block flow-root;
    padding: 1rem;
}

section#bio img.headshot {
    float: right;
    height: 250px;
    width: 250px;
    padding: 0 0 1rem 1rem;
}

/* phone-sized devices */
@media only screen and (max-width: 420px) {
    body {
        font-size: large;
        padding: 1rem 1rem 0;
    }

    section#bio img.headshot {
        display: block;
        float: none;
        height: 300px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 0px;
        width: 300px;
    }
}