@font-face {
    font-family: 'VGA';
    src: url('http://sciops.net/downloads/vga/VGAMedium.woff2') format('woff2'),
        url('http://sciops.net/downloads/vga/VGAMedium.woff') format('woff');
    font-weight: 300;
    font-style: normal;
}
@font-face {
    font-family: "BQN386";
    src: url("../font/BQN386.woff2");
}
:root {
    --font-family: 'BQN386', monospace;
    --line-height: 1.20rem;
    --border-thickness: 2px;
    --text-color: #000;
    --text-color-alt: #666;
    --background-color: #fff;
    --background-color-alt: #eee;

    --font-weight-normal: 500;
    --font-weight-medium: 600;
    --font-weight-bold: 800;

    font-family: var(--font-family);
    font-optical-sizing: auto;
    font-weight: var(--font-weight-normal);
    font-style: normal;
    font-variant-numeric: tabular-nums lining-nums;
    font-size: 18px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --text-color: #fff;
        --text-color-alt: #aaa;
        --background-color: #000;
        --background-color-alt: #111;
    }
}

* {
    box-sizing: border-box;
}


* + * {
    margin-top: var(--line-height);
}

html {
    display: flex;
    width: 100%;
    margin: auto;
    padding: 0;
    flex-direction: column;
    justify-content: center;
    justify-content: center;
    background: var(--background-color);
    color: var(--text-color);
}

body {
    position: relative;
    width: 100%;
    margin: 0;
    padding: var(--line-height) 2ch;
    max-width: calc(min(80ch, round(down, 100%, 1ch)));
    line-height: var(--line-height);
    overflow-x: hidden;
}

@media screen and (max-width: 480px) {
    :root {
        font-size: 14px;
    }
    body {
        padding: var(--line-height) 1ch;
    }
}

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    margin: calc(var(--line-height) * 2) 0 var(--line-height);
    line-height: var(--line-height);
}

h1 {
    font-size: 2rem;
    line-height: calc(2 * var(--line-height));
    margin-bottom: calc(var(--line-height) * 2);
    text-transform: uppercase;
}
h2 {
    font-size: 1rem;
    text-transform: uppercase;
}

hr {
    position: relative;
    display: block;
    height: var(--line-height);
    margin: calc(var(--line-height) * 1.5) 0;
    border: none;
    color: var(--text-color);
}
hr:after {
    display: block;
    content: "";
    position: absolute;
    top: calc(var(--line-height) / 2 - var(--border-thickness));
    left: 0;
    width: 100%;
    border-top: calc(var(--border-thickness) * 3) double var(--text-color);
    height: 0;
}

a {
    text-decoration-thickness: var(--border-thickness);
}

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

p {
    margin-bottom: var(--line-height);
}

strong {
    font-weight: var(--font-weight-bold);
}
em {
    font-style: italic;
}

sub {
    position: relative;
    display: inline-block;
    margin: 0;
    vertical-align: sub;
    line-height: 0;
    width: calc(1ch / 0.75);
    font-size: .75rem;
}

table {
    position: relative;
    top: calc(var(--line-height) / 2);
    width: calc(round(down, 100%, 1ch));
    border-collapse: collapse;
    margin: 0 0 calc(var(--line-height) * 2);
}

th, td {
    border: var(--border-thickness) solid var(--text-color);
    padding:
        calc((var(--line-height) / 2))
        calc(1ch - var(--border-thickness) / 2)
        calc((var(--line-height) / 2) - (var(--border-thickness)))
    ;
    line-height: var(--line-height);
    vertical-align: top;
    text-align: left;
}
table tbody tr:first-child > * {
    padding-top: calc((var(--line-height) / 2) - var(--border-thickness));
}


th {
    font-weight: 700;
}
.width-min {
    width: 0%;
}
.width-auto {
    width: 100%;
}

.header {
    margin-bottom: calc(var(--line-height) * 2);
}
.header h1 {
    margin: 0;
}
.header tr td:last-child {
    text-align: right;
}

p {
    word-break: break-word;
    word-wrap: break-word;
    hyphens: auto;
}

img, video {
    display: block;
    width: 100%;
    object-fit: contain;
    overflow: hidden;
}
img {
    font-style: italic;
    color: var(--text-color-alt);
}

details {
    border: var(--border-thickness) solid var(--text-color);
    padding: calc(var(--line-height) - var(--border-thickness)) 1ch;
    margin-bottom: var(--line-height);
}

summary {
    font-weight: var(--font-weight-medium);
    cursor: pointer;
}
details[open] summary {
    margin-bottom: var(--line-height);
}

details ::marker {
    display: inline-block;
    content: '▶';
    margin: 0;
}
details[open] ::marker {
    content: '▼';
}

details :last-child {
    margin-bottom: 0;
}

pre {
    white-space: pre;
    overflow-x: auto;
    margin: var(--line-height) 0;
    overflow-y: hidden;
    width: 100%;
}
figure pre {
    margin: 0;
}

pre, code {
    font-family: var(--font-family);
}

code {
    font-weight: var(--font-weight-medium);
}

figure {
    margin: calc(var(--line-height) * 2) 3ch;
    overflow-x: auto;
    overflow-y: hidden;
}

figcaption {
    display: block;
    font-style: italic;
    margin-top: var(--line-height);
}

ul, ol {
    padding: 0;
    margin: 0 0 var(--line-height);
}

ul {
    list-style-type: square;
    padding: 0 0 0 2ch;
}
ol {
    list-style-type: none;
    counter-reset: item;
    padding: 0;
}
ol ul,
ol ol,
ul ol,
ul ul {
    padding: 0 0 0 3ch;
    margin: 0;
}
ol li:before { 
    content: counters(item, ".") ". ";
    counter-increment: item;
    font-weight: var(--font-weight-medium);
}

li {
    margin: 0;
    padding: 0;
}

li::marker {
    line-height: 0;
}

::-webkit-scrollbar {
    height: var(--line-height);
}

input, button, textarea {
    border: var(--border-thickness) solid var(--text-color);
    padding:
        calc(var(--line-height) / 2 - var(--border-thickness))
        calc(1ch - var(--border-thickness));
    margin: 0;
    font: inherit;
    font-weight: inherit;
    height: calc(var(--line-height) * 2);
    width: auto;
    overflow: visible;
    background: var(--background-color);
    color: var(--text-color);
    line-height: normal;
    -webkit-font-smoothing: inherit;
    -moz-osx-font-smoothing: inherit;
    -webkit-appearance: none;
}

input[type=checkbox],
input[type=radio] {
    display: inline-grid;
    place-content: center;
    vertical-align: top;
    width: 2ch;
    height: var(--line-height);
    cursor: pointer;
}
input[type=checkbox]:checked:before,
input[type=radio]:checked:before {
    content: "";
    width: 1ch;
    height: calc(var(--line-height) / 2);
    background: var(--text-color);
}
input[type=radio],
input[type=radio]:before {
    border-radius: 100%;
}

button:focus, input:focus {
    --border-thickness: 3px;
    outline: none;
}

input {
    width: calc(round(down, 100%, 1ch));
}
::placeholder {
    color: var(--text-color-alt);
    opacity: 1;
}
::-ms-input-placeholder {
    color: var(--text-color-alt);
}
button::-moz-focus-inner {
    padding: 0;
    border: 0
}

button {
    text-transform: uppercase;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
}

button:hover {
    background: var(--background-color-alt);
}
button:active {
    transform: translate(2px, 2px);
}

label {
    display: block;
    width: calc(round(down, 100%, 1ch));
    height: auto;
    line-height: var(--line-height);
    font-weight: var(--font-weight-medium);
    margin: 0;
}

label input {
    width: 100%;
}

.tree, .tree ul {
    position: relative;
    padding-left: 0;
    list-style-type: none;
    line-height: var(--line-height);
}
.tree ul {
    margin: 0;
}
.tree ul li {
    position: relative;
    padding-left: 1.5ch;
    margin-left: 1.5ch;
    border-left: var(--border-thickness) solid var(--text-color);
}
.tree ul li:before {
    position: absolute;
    display: block;
    top: calc(var(--line-height) / 2);
    left: 0;
    content: "";
    width: 1ch;
    border-bottom: var(--border-thickness) solid var(--text-color);
}
.tree ul li:last-child {
    border-left: none;
}
.tree ul li:last-child:after {
    position: absolute;
    display: block;
    top: 0;
    left: 0;
    content: "";
    height: calc(var(--line-height) / 2);
    border-left: var(--border-thickness) solid var(--text-color);
}

.grid {
    --grid-cells: 0;
    display: flex;
    gap: 1ch;
    width: calc(round(down, 100%, (1ch * var(--grid-cells)) - (1ch * var(--grid-cells) - 1)));
    margin-bottom: var(--line-height);
}

.grid > *,
.grid > input {
    flex: 0 0 calc(round(down, (100% - (1ch * (var(--grid-cells) - 1))) / var(--grid-cells), 1ch));
}
.grid:has(> :last-child:nth-child(1)) { --grid-cells: 1; }
.grid:has(> :last-child:nth-child(2)) { --grid-cells: 2; }
.grid:has(> :last-child:nth-child(3)) { --grid-cells: 3; }
.grid:has(> :last-child:nth-child(4)) { --grid-cells: 4; }
.grid:has(> :last-child:nth-child(5)) { --grid-cells: 5; }
.grid:has(> :last-child:nth-child(6)) { --grid-cells: 6; }
.grid:has(> :last-child:nth-child(7)) { --grid-cells: 7; }
.grid:has(> :last-child:nth-child(8)) { --grid-cells: 8; }
.grid:has(> :last-child:nth-child(9)) { --grid-cells: 9; }

/* DEBUG UTILITIES */

.debug .debug-grid {
    --color: color-mix(in srgb, var(--text-color) 10%, var(--background-color) 90%);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    background-image:
        repeating-linear-gradient(var(--color) 0 1px, transparent 1px 100%),
        repeating-linear-gradient(90deg, var(--color) 0 1px, transparent 1px 100%);
    background-size: 1ch var(--line-height);
    margin: 0;
}

.debug .off-grid {
    background: rgba(255, 0, 0, 0.1);
}

.debug-toggle-label {
    text-align: right;
}

.smalldot { background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPSc1JyBoZWlnaHQ9JzUnPgo8cmVjdCB3aWR0aD0nNScgaGVpZ2h0PSc1JyBmaWxsPScjZmZmJy8+CjxyZWN0IHdpZHRoPScxJyBoZWlnaHQ9JzEnIGZpbGw9JyNjY2MnLz4KPC9zdmc+"); background-repeat: repeat; }

.dots-1 { background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPScxMCcgaGVpZ2h0PScxMCc+CiAgPHJlY3Qgd2lkdGg9JzEwJyBoZWlnaHQ9JzEwJyBmaWxsPSd3aGl0ZScgLz4KICA8cmVjdCB4PScwJyB5PScwJyB3aWR0aD0nMScgaGVpZ2h0PScxJyBmaWxsPSdibGFjaycgLz4KPC9zdmc+"); background-repeat: repeat; }

.dots-2 { background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPScxMCcgaGVpZ2h0PScxMCc+CiAgPHJlY3Qgd2lkdGg9JzEwJyBoZWlnaHQ9JzEwJyBmaWxsPSd3aGl0ZScgLz4KICA8cmVjdCB4PScwJyB5PScwJyB3aWR0aD0nMicgaGVpZ2h0PScyJyBmaWxsPSdibGFjaycgLz4KPC9zdmc+"); background-repeat: repeat; }

.dots-3 { background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPScxMCcgaGVpZ2h0PScxMCc+CiAgPHJlY3Qgd2lkdGg9JzEwJyBoZWlnaHQ9JzEwJyBmaWxsPSd3aGl0ZScgLz4KICA8cmVjdCB4PScwJyB5PScwJyB3aWR0aD0nMycgaGVpZ2h0PSczJyBmaWxsPSdibGFjaycgLz4KPC9zdmc+Cg=="); background-repeat: repeat; }

.dots-6 { background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPScxMCcgaGVpZ2h0PScxMCc+CiAgPHJlY3Qgd2lkdGg9JzEwJyBoZWlnaHQ9JzEwJyBmaWxsPSd3aGl0ZScgLz4KICA8cmVjdCB4PScwJyB5PScwJyB3aWR0aD0nNicgaGVpZ2h0PSc2JyBmaWxsPSdibGFjaycgLz4KPC9zdmc+"); background-repeat: repeat; }

.diagonal-stripe-1 { background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPScxMCcgaGVpZ2h0PScxMCc+CiAgPHJlY3Qgd2lkdGg9JzEwJyBoZWlnaHQ9JzEwJyBmaWxsPSd3aGl0ZScvPgogIDxwYXRoIGQ9J00tMSwxIGwyLC0yCiAgICAgICAgICAgTTAsMTAgbDEwLC0xMAogICAgICAgICAgIE05LDExIGwyLC0yJyBzdHJva2U9J2JsYWNrJyBzdHJva2Utd2lkdGg9JzEnLz4KPC9zdmc+Cg=="); background-repeat: repeat; }

.diagonal-stripe-2 { background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPScxMCcgaGVpZ2h0PScxMCc+CiAgPHJlY3Qgd2lkdGg9JzEwJyBoZWlnaHQ9JzEwJyBmaWxsPSd3aGl0ZScvPgogIDxwYXRoIGQ9J00tMSwxIGwyLC0yCiAgICAgICAgICAgTTAsMTAgbDEwLC0xMAogICAgICAgICAgIE05LDExIGwyLC0yJyBzdHJva2U9J2JsYWNrJyBzdHJva2Utd2lkdGg9JzInLz4KPC9zdmc+"); background-repeat: repeat; }