/* Global variables. */
.simple {
    .pagination {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 1rem;
        margin-bottom: 1rem;
        ul {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            list-style-type: none;
            margin: 0;
            padding: 0;
        }
        li {
            margin: 0 0.5rem;
        }
    }


    /* Set sans-serif & mono fonts */
    --sans-font: -apple-system, BlinkMacSystemFont, "Avenir Next", Avenir,
    "Nimbus Sans L", Roboto, "Noto Sans", "Segoe UI", Arial, Helvetica,
    "Helvetica Neue", sans-serif;
    --mono-font: Consolas, Menlo, Monaco, "Andale Mono", "Ubuntu Mono", monospace;
    --standard-border-radius: 5px;

    /* Default (light) theme */
    --bg: #fff;
    --accent-bg: #f5fbff;
    --text: #212121;
    --text-light: #585858;
    --border: #898EA4;
    --accent: #0d4da1;
    --accent-hover: #1281e2;
    --accent-text: var(--bg);
    --code: #d81b60;
    --preformatted: #444;
    --marked: #ffdd33;
    --disabled: #efefef;

    /* Dark theme */
    @media (prefers-color-scheme: dark) {
        color-scheme: dark;
        --bg: #212121;
        --accent-bg: #2b2b2b;
        --text: #dcdcdc;
        --text-light: #ababab;
        --accent: #0d4da1;
        --accent-hover: #1281e2;
        --accent-text: var(--bg);
        --code: #f06292;
        --preformatted: #ccc;
        --disabled: #111;
        /* Add a bit of transparency so light media isn't so glaring in dark mode */
        img,
        video {
            opacity: 0.8;
        }
    }

    /* Reset box-sizing */

    *, *::before, *::after {
        box-sizing: border-box;
    }

    /* Reset default appearance */

    textarea,
    select,
    input,
    progress {
        appearance: none;
        -webkit-appearance: none;
        -moz-appearance: none;
    }

    /* Set the font globally */
    font-family: var(--sans-font);
    scroll-behavior: smooth;

    /* Make the body a nice central block */

        color: var(--text);
        background-color: var(--bg);
        font-size: 1.15rem;
        line-height: 1.5;
        display: grid;
        grid-template-columns: 1fr min(45rem, 90%) 1fr;
        margin: 0;

    & > * {
        grid-column: 2;
    }

    /* Make the header bg full width, but the content inline with body */

    & > header {
        background-color: var(--accent-bg);
        border-bottom: 1px solid var(--border);
        text-align: center;
        padding: 0 0.5rem 2rem 0.5rem;
        grid-column: 1 / -1;
    }

    & > header > *:only-child {
        margin-block-start: 2rem;
    }

    & > header h1 {
        max-width: 1200px;
        margin: 1rem auto;
    }

    & > header p {
        max-width: 40rem;
        margin: 1rem auto;
    }

    /* Add a little padding to ensure spacing is correct between content and header > nav */

    main {
        padding-top: 1.5rem;
    }

    & > footer {
        margin-top: 4rem;
        padding: 2rem 1rem 1.5rem 1rem;
        color: var(--text-light);
        font-size: 0.9rem;
        text-align: center;
        border-top: 1px solid var(--border);
    }

    /* Format headers */

    h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 2.6rem;
        margin-top: 3rem;
    }

    h3 {
        font-size: 2rem;
        margin-top: 3rem;
    }

    h4 {
        font-size: 1.44rem;
    }

    h5 {
        font-size: 1.15rem;
    }

    h6 {
        font-size: 0.96rem;
    }

    p {
        margin: 1.5rem 0;
    }

    /* Prevent long strings from overflowing container */

    p, h1, h2, h3, h4, h5, h6 {
        overflow-wrap: break-word;
    }

    /* Fix line height when title wraps */

    h1,
    h2,
    h3 {
        line-height: 1.1;
    }

    /* Reduce header size on mobile */
    @media only screen and (max-width: 720px) {
        h1 {
            font-size: 2.5rem;
        }

        h2 {
            font-size: 2.1rem;
        }

        h3 {
            font-size: 1.75rem;
        }

        h4 {
            font-size: 1.25rem;
        }
    }

    /* Format links & buttons */

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

    a:hover {
        text-decoration: none;
    }

    button,
    .button,
    a.button, /* extra specificity to override a */
    input[type="submit"],
    input[type="reset"],
    input[type="button"],
    label[type="button"] {
        border: 1px solid var(--accent);
        background-color: var(--accent);
        color: var(--accent-text);
        padding: 0.5rem 0.9rem;
        text-decoration: none;
        line-height: normal;
    }

    .button[aria-disabled="true"],
    input:disabled,
    textarea:disabled,
    select:disabled,
    button[disabled] {
        cursor: not-allowed;
        background-color: var(--disabled);
        border-color: var(--disabled);
        color: var(--text-light);
    }

    input[type="range"] {
        padding: 0;
    }

    /* Set the cursor to '?' on an abbreviation and style the abbreviation to show that there is more information underneath */

    abbr[title] {
        cursor: help;
        text-decoration-line: underline;
        text-decoration-style: dotted;
    }

    button:enabled:hover,
    .button:not([aria-disabled="true"]):hover,
    input[type="submit"]:enabled:hover,
    input[type="reset"]:enabled:hover,
    input[type="button"]:enabled:hover,
    label[type="button"]:hover {
        background-color: var(--accent-hover);
        border-color: var(--accent-hover);
        cursor: pointer;
    }

    .button:focus-visible,
    button:focus-visible:where(:enabled),
    input:enabled:focus-visible:where(
  [type="submit"],
  [type="reset"],
  [type="button"]
) {
        outline: 2px solid var(--accent);
        outline-offset: 1px;
    }

    /* Format navigation */

    header > nav {
        font-size: 1rem;
        line-height: 2;
        padding: 1rem 0 0 0;
    }

    /* Use flexbox to allow items to wrap, as needed */

    header > nav ul,
    header > nav ol {
        align-content: space-around;
        align-items: center;
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        list-style-type: none;
        margin: 0;
        padding: 0;
    }

    /* List items are inline elements, make them behave more like blocks */

    header > nav ul li,
    header > nav ol li {
        display: inline-block;
    }

    header > nav a,
    header > nav a:visited {
        margin: 0 0.5rem 1rem 0.5rem;
        border: 1px solid var(--border);
        border-radius: var(--standard-border-radius);
        color: var(--text);
        display: inline-block;
        padding: 0.1rem 1rem;
        text-decoration: none;
    }

    header > nav a:hover,
    header > nav a.current,
    header > nav a[aria-current="page"] {
        border-color: var(--accent);
        color: var(--accent);
        cursor: pointer;
    }

    /* Reduce nav side on mobile */
    @media only screen and (max-width: 720px) {
        header > nav a {
            border: none;
            padding: 0;
            text-decoration: underline;
            line-height: 1;
        }
    }

    /* Consolidate box styling */

    aside, details, pre, progress {
        background-color: var(--accent-bg);
        border: 1px solid var(--border);
        border-radius: var(--standard-border-radius);
        margin-bottom: 1rem;
    }

    aside {
        font-size: 1rem;
        width: 30%;
        padding: 0 15px;
        margin-inline-start: 15px;
        float: right;
    }

    *[dir="rtl"] aside {
        float: left;
    }

    /* Make aside full-width on mobile */
    @media only screen and (max-width: 720px) {
        aside {
            width: 100%;
            float: none;
            margin-inline-start: 0;
        }
    }

    article, fieldset, dialog {
        border: 1px solid var(--border);
        padding: 1rem;
        border-radius: var(--standard-border-radius);
        margin-bottom: 1rem;
    }

    article h2:first-child,
    section h2:first-child {
        margin-top: 1rem;
    }

    section {
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        padding: 2rem 1rem;
        margin: 3rem 0;
    }

    /* Don't double separators when chaining sections */

    section + section,
    section:first-child {
        border-top: 0;
        padding-top: 0;
    }

    section:last-child {
        border-bottom: 0;
        padding-bottom: 0;
    }

    details {
        padding: 0.7rem 1rem;
    }

    summary {
        cursor: pointer;
        font-weight: bold;
        padding: 0.7rem 1rem;
        margin: -0.7rem -1rem;
        word-break: break-all;
    }

    details[open] > summary + * {
        margin-top: 0;
    }

    details[open] > summary {
        margin-bottom: 0.5rem;
    }

    details[open] > :last-child {
        margin-bottom: 0;
    }

    /* Format tables */

    table {
        border-collapse: collapse;
        margin: 1.5rem 0;
    }

    figure > table {
        width: max-content;
        margin: 0;
    }

    td,
    th {
        border: 1px solid var(--border);
        text-align: start;
        padding: 0.5rem;
    }

    th {
        background-color: var(--accent-bg);
        font-weight: bold;
    }

    tr:nth-child(even) {
        /* Set every other cell slightly darker. Improves readability. */
        background-color: var(--accent-bg);
    }

    table caption {
        font-weight: bold;
        margin-bottom: 0.5rem;
    }

    /* Format forms */

    textarea,
    select,
    input,
    button,
    .button {
        font-size: inherit;
        font-family: inherit;
        padding: 0.5rem;
        margin-bottom: 0.5rem;
        border-radius: var(--standard-border-radius);
        box-shadow: none;
        max-width: 100%;
        display: inline-block;
    }

    textarea,
    select,
    input {
        color: var(--text);
        background-color: var(--bg);
        border: 1px solid var(--border);
    }

    label {
        display: block;
    }

    textarea:not([cols]) {
        width: 100%;
    }

    /* Add arrow to drop-down */

    select:not([multiple]) {
        background-image: linear-gradient(45deg, transparent 49%, var(--text) 51%),
        linear-gradient(135deg, var(--text) 51%, transparent 49%);
        background-position: calc(100% - 15px), calc(100% - 10px);
        background-size: 5px 5px, 5px 5px;
        background-repeat: no-repeat;
        padding-inline-end: 25px;
    }

    *[dir="rtl"] select:not([multiple]) {
        background-position: 10px, 15px;
    }

    /* checkbox and radio button style */

    input[type="checkbox"],
    input[type="radio"] {
        vertical-align: middle;
        position: relative;
        width: min-content;
    }

    input[type="checkbox"] + label,
    input[type="radio"] + label {
        display: inline-block;
    }

    input[type="radio"] {
        border-radius: 100%;
    }

    input[type="checkbox"]:checked,
    input[type="radio"]:checked {
        background-color: var(--accent);
    }

    input[type="checkbox"]:checked::after {
        /* Creates a rectangle with colored right and bottom borders which is rotated to look like a check mark */
        content: " ";
        width: 0.18em;
        height: 0.32em;
        border-radius: 0;
        position: absolute;
        top: 0.05em;
        left: 0.17em;
        background-color: transparent;
        border-right: solid var(--bg) 0.08em;
        border-bottom: solid var(--bg) 0.08em;
        font-size: 1.8em;
        transform: rotate(45deg);
    }

    input[type="radio"]:checked::after {
        /* creates a colored circle for the checked radio button  */
        content: " ";
        width: 0.25em;
        height: 0.25em;
        border-radius: 100%;
        position: absolute;
        top: 0.125em;
        background-color: var(--bg);
        left: 0.125em;
        font-size: 32px;
    }

    /* Makes input fields wider on smaller screens */
    @media only screen and (max-width: 720px) {
        textarea,
        select,
        input {
            width: 100%;
        }
    }

    /* Set a height for color input */

    input[type="color"] {
        height: 2.5rem;
        padding: 0.2rem;
    }

    /* do not show border around file selector button */

    input[type="file"] {
        border: 0;
    }

    /* Misc body elements */

    hr {
        border: none;
        height: 1px;
        background: var(--border);
        margin: 1rem auto;
    }

    mark {
        padding: 2px 5px;
        border-radius: var(--standard-border-radius);
        background-color: var(--marked);
        color: black;
    }

    mark a {
        color: #0d47a1;
    }

    img,
    video {
        max-width: 100%;
        height: auto;
        border-radius: var(--standard-border-radius);
    }

    figure {
        margin: 0;
        display: block;
        overflow-x: auto;
    }

    figure > img,
    figure > picture > img {
        display: block;
        margin-inline: auto;
    }

    figcaption {
        text-align: center;
        font-size: 0.9rem;
        color: var(--text-light);
        margin-block: 1rem;
    }

    blockquote {
        margin-inline-start: 2rem;
        margin-inline-end: 0;
        margin-block: 2rem;
        padding: 0.4rem 0.8rem;
        border-inline-start: 0.35rem solid var(--accent);
        color: var(--text-light);
        font-style: italic;
    }

    cite {
        font-size: 0.9rem;
        color: var(--text-light);
        font-style: normal;
    }

    dt {
        color: var(--text-light);
    }

    /* Use mono font for code elements */

    code,
    pre,
    pre span,
    kbd,
    samp {
        font-family: var(--mono-font);
        color: var(--code);
    }

    kbd {
        color: var(--preformatted);
        border: 1px solid var(--preformatted);
        border-bottom: 3px solid var(--preformatted);
        border-radius: var(--standard-border-radius);
        padding: 0.1rem 0.4rem;
    }

    pre {
        padding: 1rem 1.4rem;
        max-width: 100%;
        overflow: auto;
        color: var(--preformatted);
    }

    /* Fix embedded code within pre */

    pre code {
        color: var(--preformatted);
        background: none;
        margin: 0;
        padding: 0;
    }

    /* Progress bars */
    /* Declarations are repeated because you */
    /* cannot combine vendor-specific selectors */

    progress {
        width: 100%;
    }

    progress:indeterminate {
        background-color: var(--accent-bg);
    }

    progress::-webkit-progress-bar {
        border-radius: var(--standard-border-radius);
        background-color: var(--accent-bg);
    }

    progress::-webkit-progress-value {
        border-radius: var(--standard-border-radius);
        background-color: var(--accent);
    }

    progress::-moz-progress-bar {
        border-radius: var(--standard-border-radius);
        background-color: var(--accent);
        transition-property: width;
        transition-duration: 0.3s;
    }

    progress:indeterminate::-moz-progress-bar {
        background-color: var(--accent-bg);
    }

    dialog {
        max-width: 40rem;
        margin: auto;
    }

    dialog::backdrop {
        background-color: var(--bg);
        opacity: 0.8;
    }

    @media only screen and (max-width: 720px) {
        dialog {
            max-width: 100%;
            margin: auto 1em;
        }
    }

    /* Superscript & Subscript */
    /* Prevent scripts from affecting line-height. */

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

    sup {
        top: -0.4em;
    }

    sub {
        top: 0.3em;
    }

    /* Classes for notices */

    .notice {
        background: var(--accent-bg);
        border: 2px solid var(--border);
        border-radius: var(--standard-border-radius);
        padding: 1.5rem;
        margin: 2rem 0;
    }
}