:root {
    --bg-main: #ffffff;
    --bg-dim: #f8f8f8;
    --bg-alt: #f0f0f0;

    --blue-subtle-bg: #b5d0ff;
    --cyan-subtle-bg: #c0efff;
    --bg-hl-alt-intense: #e8dfd1;

    --fg-main: #000000;
    --fg-dim: #282828;
    --fg-alt: #505050;

    --fg-special-cold: #093060;
    --fg-special-mild: #184034;
    --fg-special-warm: #5d3026;
    --fg-special-calm: #61284f;

    --red: #a60000;
    --green: #005e00;
    --yellow: #813e00;
    --blue: #0031a9;
    --magenta: #721045;
    --cyan: #00538b;

    --blue-alt-other: #0000c0;
    --yellow-nuanced-fg: #3f3000;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg-main: #000000;
        --bg-dim: #100f10; /* #110b11 */
        --bg-alt: #191a1b; /* #181a20 */

        --blue-subtle-bg: #10387c;
        --cyan-subtle-bg: #00415e;
        --bg-hl-alt-intense: #282e46;

        --fg-main: #ffffff;
        --fg-dim: #e0e6f0;
        --fg-alt: #a8a8a8;

        --fg-special-cold: #c6eaff;
        --fg-special-mild: #bfebe0;
        --fg-special-warm: #f8dec0;
        --fg-special-calm: #fbd6f4;

        --red: #ff8059;
        --green: #44bc44;
        --yellow: #eecc00;
        --blue: #2fafff;
        --magenta: #feacd0;
        --cyan: #00d3d0;

        --blue-alt-other: #00bcff;
        --yellow-nuanced-fg: #dfdfb0;

    }
}

::selection { background-color: var(--bg-hl-alt-intense); }

html {
    color: var(--fg-main);
    background-color: var(--bg-main);
    font-family: "Iosevka Aile", sans-serif;
}

body {
    margin: 2ch;
    max-width: 80ch;
    line-height: 1.5;
}
@media only screen and (min-width: 600px) { body { margin: 3.2ch; } }
/* @media only screen and (min-width: 720px) { body { margin: 4ch; } } */
@media only screen and (min-width: 84ch) { body { margin: 4ch auto; } }
/* @media only screen and (min-width: 960px) { body { margin: 8ch auto; } } */
/* @media only screen and (min-width: 1200px) { body { margin: 9.6ch auto; } } */
/* @media only screen and (min-width: 1440px) { body { margin: 12ch auto; } } */

h1 { color: var(--fg); }
h2 { color: var(--fg-special-warm); }
h3 { color: var(--fg-special-cold); }
h4 { color: var(--fg-special-mild); }
h5 { color: var(--fg-special-calm); }
h6 { color: var(--yellow-nuanced-fg); }
h1, h2, h3, h4, h5, h6, .title { font-family: "Iosevka Etoile", serif; }
.title {
    color: var(--fg-special-cold);
    border-bottom: 1px solid var(--bg-alt);
}
.subtitle {
    font-size: 0.56em;
    font-style: italic;
    font-weight: normal;
    color: var(--fg-special-mild);
}

hr { color: var(--fg-alt); }

a { color: var(--blue-alt-other); }
a:hover, a:focus {
    color: var(--fg-dim);
    background-color: var(--blue-subtle-bg);
}

a:visited { color: var(--cyan); }
a:visited:hover, a:visited:focus {
    color: var(--fg-dim);
    background-color: var(--cyan-subtle-bg);
}

img { display: block; max-width: 100%; }

#org-div-home-and-up { float: right; padding-top: 1ch; }

pre {
    color: #ffffff;
    padding: 0.6em;
    display: block;
    overflow-x: auto;
    white-space: pre;
    word-break: break-all;
    background-color: #100f10;
    font-family: "Iosevka", monospace;
}
pre:before {
    right: 8px;
    display: none;
    color: #ffffff;
    padding: 0 0.4ch;
    position: absolute;
    background-color: #000000;
}
.o-src-container ::selection,
pre ::selection { background-color: #282e46; }

pre.src { position: relative; }
pre.src:hover:before { display: inline; }
pre.src-c:before { content:"C" }
pre.src-sh:before { content:"sh" }
pre.src-go:before { content:"Go" }
pre.src-org:before { content:"Org" }
pre.src-perl:before { content:"Perl" }
pre.src-raku:before { content:"Raku" }
pre.src-python:before { content:"Python" }
pre.src-emacs-lisp:before { content:"Emacs Lisp" }

code {
    font-size: 1rem; /* code size should be same as body */
    padding: 0 0.4ch;
    color: var(--fg-special-calm);
    background-color: var(--bg-alt);
}

table {
    width: 100%;
    margin-bottom: 1em;
    border-collapse: collapse;
}
tbody tr:nth-child(odd) td, tbody tr:nth-child(odd) th {
    background-color: var(--bg-dim);
}
td, th { padding: .25em .5em; border: 1px solid var(--bg-alt); }

.underline { text-decoration: underline; }

#table-of-contents {
    border-bottom: 1px solid var(--bg-alt);
    margin-bottom: 2ch;
}

#postamble {
    margin-top: 1.6em;
    border-top: 0.1em solid var(--fg-special-cold);
}

.note {
    background-color: var(--cyan-subtle-bg);
    padding: 0 0.4ch;
}

form, input {
    color: var(--fg-main);
    background-color: var(--bg-main);
    margin: .25em;
    padding: .25em;
}