body {
    --color-text: #090909;
    --color-text-gray: #767676;
    --color-link-hover: red;
    --color-background: white;
    --color-background-blockquote: #f4f4f4;
    --color-background-popup: white;
    --color-popup-border: var(--color-text);
    --color-guidelines: lightgray;

    --font-header-name: "IBM Plex Serif";
    --font-header-links: "IBM Plex Serif";
    --font-headings: "IBM Plex Serif";
    --font-summary: "IBM Plex Serif";
    --font-body: "IBM Plex Serif";
    --font-mono: "Fira Mono";

    background-color: var(--color-background);
    color: var(--color-text);
    transition: background-color 0.2s, color 0.2s;

    font-family: 'Times New Roman', Times, serif;
    font-family: var(--font-body);
    font-weight: 400;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: Arial, Helvetica, sans-serif;
    font-family: var(--font-headings);
    font-weight: 500;
    margin: 32px auto 8px;
}

h1 {
    font-size: 1.5em;
    line-height: 1.1em;
}

h2 {
    font-size: 1.3em;
}

h3 {
    font-size: 1.23em;
}

h4 {
    font-size: 1em;
}

code {
    font-family: 'Courier New', Courier, monospace;
    font-family: var(--font-mono);
    font-size: 0.9em;
    line-height: 1em;
    letter-spacing: -0.5px;
}

p,
li,
ul {
    font-family: 'Times New Roman', Times, serif;
    font-family: var(--font-body);
    font-weight: 400;
    letter-spacing: -0.1px;
}

p,
li {
    font-size: 1.2em;
    line-height: 1.5em;
}

p, table {
    margin: 0px auto 20px auto;
}

li {
    margin: 0px auto 10px auto;
}

ul {
    margin: 0px auto 30px;
}

a,
a:visited {
    color: var(--color-text);
}

a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

sup,
sub {
    vertical-align: baseline;
    position: relative;
    top: -0.4em;
}

sub {
    top: 0.4em;
}

blockquote {
    max-width: 100%;
    padding: 24px 16px 4px 16px;
    background-color: var(--color-background-blockquote);
}

.boxshadow {
    box-shadow: 4px 4px 16px var(--color-text-gray);
}

.footnotes {
    margin-top: 60px;
    font-size: 0.7em;
}

.footnotes ol {
    padding-inline-start: 16px;
    padding-inline-end: 16px;
}

.header {
    margin: 30px auto 60px auto;
}

.header-name {
    margin: 0px auto 4px auto;
    font-family: Arial, Helvetica, sans-serif;
    font-family: var(--font-header-name);
    font-size: 2.2em;
    font-weight: 500;
    font-style: italic;
    letter-spacing: 0px;
    text-align: center;
}

.header-name a,
.header-link-container a {
    text-decoration: none;
}

.header-name a:hover,
.header-link-container a:hover {
    text-decoration: underline;
}

.header-link-container {
    display: flex;
    justify-content: center;
}

.header-link {
    margin: 0px 10px;
    font-size: 1.1em;
    font-weight: 400;
    letter-spacing: 0px;
}

.main-content {
    margin: 0px auto;
    width: 90%;
    max-width: 600px;
}

.main-entry-container,
.main-entry-container-snippet {
    display: inline-flex;
    width: 100%;
}

.main-entry-container {
    margin: 0px auto 16px auto;
}

.main-entry-container-snippet {
    margin: 0px auto 12px auto;
}

.main-entry-image-container,
.main-entry-image-container-snippet,
.main-entry-text {
    flex: auto;
    display: inline-block;
    margin: 8px;
    vertical-align: top;
}

.main-entry-image-container,
.main-entry-image-container-snippet {
    width: 25%;
    text-align: center;
}

.main-entry-image {
    padding: 4px;
    border: 1px solid lightgray;
    border-radius: 4px;
}

.main-entry-text,
.main-entry-text-snippet {
    text-align: left;
}

.main-entry-text {
    width: 50%;
}

.main-entry-text-snippet {
    width: 50%;
}

.hidden {
    display: none;
}

.main-entry-title {
    margin: 0px auto 6px auto;
    line-height: 1.1em;
    font-size: 1.4em;
    font-weight: 500;
}

.main-entry-title-snippet {
    margin: 0px auto 5px auto;
    line-height: 1.05em;
    font-size: 1.15em;
}

.main-entry-title a,
.main-entry-title-snippet a {
    font-family: Arial, Helvetica, sans-serif;
    font-family: var(--font-headings);
    text-decoration: none;
}

.main-entry-summary,
.main-entry-summary-snippet {
    margin: 0px;
    color: var(--color-text);
    font-family: 'Times New Roman', Times, serif;
    font-family: var(--font-summary);
    font-weight: 300;
    line-height: 1.2em;
}

.main-entry-summary {
    font-size: 1.05em;
}

.main-entry-summary-snippet {
    font-size: 0.95em;
}

.project-list-entry-container {
    margin: 0px auto 12px;
}

.project-list-entry-title,
.project-list-entry-title a {
    font-size: 1.05em;
    line-height: 0.5em;
    word-spacing: -1px;
}

.project-list-entry-date {
    color: var(--color-text-gray);
    font-size: 0.8em;
}

.article-title {
    margin: 0px auto 4px auto;
    font-size: 1.7em;
}

.content-date {
    margin: 0px auto 32px auto;
    font-size: 1em;
    color: var(--color-text-gray);
}

.article-image-container {
    margin: 30px auto;
    text-align: center;
}

.article-image-half {
    width: 50%;
    max-width: 300px;
}

.article-image {
    max-width: 100%;
    height: auto;
}

.article-fullwidth {
    width: 100%;
    height: auto;
}

.article-image-caption {
    font-family: 'Times New Roman', Times, serif;
    font-family: var(--font-body);
    font-style: italic;
    font-weight: 300;
    font-size: 1.1em;
}

.footer {
    margin: 50px auto 40px auto;
    color: var(--color-text-gray);
    font-size: 0.9em;
    text-align: center;
}

#footer-copyright {
    font-family: 'IBM Plex Serif', 'Times New Roman', Times, serif;
    font-family: var(--font-body);
    font-size: 1em;
}

#dark-mode-toggle {
    font-size: 1.1em;
}

/* footnotes.js */

.bottom-panel {
    position: fixed;
    font-size: 0.9rem;
    bottom: 0;
    left: 0;
    right: 0;
}

.popup-wrapper {
    display: none;
    max-width: 560px;
    margin: 0 auto;
    background-color: var(--color-background-popup);
    border-top: 4px solid var(--color-popup-border);
}

#popup-index {
    padding: 1.25rem 0 0 1.25rem;
}

#popup-close {
    padding: 1.25rem;
    margin-left: auto;
    cursor: pointer;
}

#popup-close:hover {
    background-color: var(--color-background-popup);
}

#popup-content {
    max-width: 500px;
    text-align: left;
    padding: 1.25rem 0 1.25rem 0.9rem;
}

/* special centering that ignores containing element width */
.center {
    margin-left: 50%;
    transform: translateX(-50%);
}

@media (max-width: 570px) {
    ul {
        padding-left: 20px;
    }

    .header {
        margin: 20px auto 50px auto;
    }

    .header-link {
        margin: 0px 10px;
    }

    #main-list {
        text-align: center;
    }

    .main-entry-container,
    .main-entry-container-snippet {
        max-width: 300px;
        margin: 0px auto 32px auto;
        border-left: 3px solid var(--color-guidelines);
        flex-wrap: wrap;
    }

    .main-entry-image-container {
        margin: 0px auto 8px auto;
        width: 100%;
        text-align: left;
        padding-left: 16px;
    }

    .main-entry-image-container-snippet {
        display: none;
    }

    .main-entry-text {
        margin: 0px auto;
        padding-left: 16px;
        width: 100%;
        max-width: 400px;
    }

    .main-entry-title-snippet {
        margin-bottom: 8px;
        font-weight: 500;
    }

    .project-list-entry-container {
        margin: 0px auto 10px;
    }
}

/* fix for jumping content with scrollbar */
@media screen and (min-width: 960px) {
    html {
        margin-left: calc(100vw - 100%);
        margin-right: 0;
    }
}

/* dark mode */
body.dark {
    --color-text: #EEEEEE;
    --color-text-gray: #767676;
    --color-link-hover: #CA3E47;
    --color-background: #1C1C1C;
    --color-background-blockquote: #2C2C2C;
    --color-background-popup: #272822;
    --color-guidelines: var(--color-text-gray);
}