/* http://meyerweb.com/eric/tools/css/reset/
   v2.0 | 20110126
   License: none (public domain)
*/
html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}

/* HTML5 display-role reset for older browsers */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
    display: block;
}
body {
    line-height: 1;
}
ol,
ul {
    list-style: none;
}
blockquote,
q {
    quotes: none;
}
blockquote:before,
blockquote:after,
q:before,
q:after {
    content: "";
    content: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}
/* --- End of CSS Reset --- */

/* DOS CGA Colors */
:root {
    --color-black: #000000;
    --color-blue: #0000aa;
    --color-green: #00aa00;
    --color-cyan: #00aaaa;
    --color-red: #aa0000;
    --color-magenta: #aa00aa;
    --color-brown: #aa5500;
    --color-light-gray: #aaaaaa;
    --color-dark-gray: #555555;
    --color-light-blue: #5555ff;
    --color-light-green: #55ff55;
    --color-light-cyan: #55ffff;
    --color-light-red: #ff5555;
    --color-light-magenta: #ff55ff;
    --color-light-brown: #ffff55;
    --color-white: #ffffff;
}

/* DOS Fonts from Old School Fonts */
@font-face {
    font-family: "fat";
    src: url("Web437_Tandy1K-I_225L.woff") format("woff");
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: "narrow";
    src: url("Web437_IBM_EGA_8x14.woff") format("woff");
    font-weight: normal;
    font-style: normal;
}

body {
    background-color: var(--color-blue);
    color: var(--color-light-gray);
    font-family: "narrow", monospace;
    overflow-x: hidden;
}
.title-wrap h1 {
    font-size: 1.4em;
    line-height: 1.6em;
}
.title-wrap h2 {
    color: var(--color-light-cyan);
    line-height: 1em;
    margin: 0;
}
h1 {
    color: var(--color-white);
    font-family: "fat";
    font-size: 1.6em;
    line-height: 1.3em;
}
h1 .pronouns {
    color: var(--color-light-gray);
}
h2 {
    color: var(--color-light-brown);
    font-size: 1.4em;
    margin: 0.8em 0;
}
h3 {
    color: var(--color-light-cyan);
    font-size: 1.3em;
    line-height: 1.5em;
    margin: 2em 0 1em 0;
}
h4 {
    color: var(--color-cyan);
    font-size: 1.2em;
    line-height: 1.5em;
    margin: 2em 0 1em 0;
}
.link-box {
    border-bottom: 5px double var(--color-light-cyan);
    border-left: 3px solid var(--color-light-cyan);
    border-right: 3px solid var(--color-light-cyan);
    border-top: 5px double var(--color-light-cyan);
    display: flex;
    justify-content: center;
    margin-top: 2rem;
    padding: 2rem 0;
    position: relative;
}
.main-menu {
    background-color: var(--color-blue);
    border-left: 3px solid var(--color-light-cyan);
    border-right: 3px solid var(--color-light-cyan);
    box-sizing: border-box;
    left: 50%;
    max-width: 90%;
    overflow: hidden;
    padding: 0 0.8rem;
    position: absolute;
    text-overflow: ellipsis;
    top: 0;
    transform: translate(-50%, -55%);
    white-space: nowrap;
}
.main-menu span {
    letter-spacing: 0.2rem;
    text-transform: uppercase;
}

ul.links {
    display: flex;
    gap: 3.6rem;
    list-style: none;
    margin: 0;
    padding: 0;
}
ul.links li {
    display: flex;
}
ul.links a {
    background-color: var(--color-light-gray);
    box-shadow: 0.8rem 0.8rem 0 0 var(--color-black);
    color: var(--color-black);
    display: block;
    padding: 0.4rem;
    text-decoration: none;
}
ul.links a::first-letter {
    color: var(--color-brown);
}
ul.links a:focus {
    background-color: var(--color-white);
    color: var(--color-brown);
}
ul.links li:has(a:active) a,
ul.links a:active {
    box-shadow: none !important;
    transform: translate(0.8rem, 0.8rem);
}

.bottom-bar {
    background-color: var(--color-light-gray);
    bottom: 0;
    color: var(--color-black);
    left: 0;
    padding: 0.5rem 1rem;
    position: fixed;
    right: 0;
}
.left {
    float: left;
    text-align: left;
}
.right {
    float: right;
    text-align: right;
}

a {
    color: var(--color-light-cyan);
}
p,
nav {
    color: var(--color-light-gray);
}
figcaption {
    margin: 1em;
}
.date {
    color: var(--color-light-gray);
}

.logo-wrap {
    color: var(--color-light-brown);
    margin-right: 0.4em;
    float: left;
    font-size: 4em;
}

img.logo {
    height: 3.2em;
    margin-bottom: 0.4em;
    margin-right: 1em;
    width: 3.2em;
}

.container {
    align-items: center;
    display: flex;
    flex-direction: column;
    margin: 0;
    justify-content: center;
}

article {
    justify-content: left;
}

article ul,
ol {
    list-style: disc;
}

/* The post index is a list of links, not prose -- no bullets. */
.post-index article ul {
    list-style: none;
}

/* Gutter for the ► marker, reserved on every row so nothing shifts as the
   selection moves. Positioned so the marker can anchor to the row. */
.post-index article ul li {
    padding-left: 1.4em;
    position: relative;
}

/* Inverse video on the selected entry, same as the homepage buttons. */
.post-index article a:focus {
    background-color: var(--color-light-gray);
    color: var(--color-black);
    outline: none;
}

/* CP437 0x10 */
.post-index article a:focus::before {
    color: var(--color-light-brown);
    content: "\25BA";
    left: 0.2em;
    position: absolute;
}

.container-viewport {
    height: 100vh;
}

.content,
.license {
    padding: 2em 0;
    width: 600px;
}

hr {
    border-top-style: hidden;
    border-left-style: hidden;
}

li {
    font-family: "narrow", monospace;
    font-size: 1.2em;
    margin-bottom: 0.4em;
}

p {
    font-family: "narrow", monospace;
    font-size: 1.2em;
    line-height: 1.2em;
    margin-bottom: 0.6em;
}

nav {
    margin-top: 2em;
}

nav a[rel="prev"] {
    text-align: left;
    margin-left: 0.5em;
}

nav a[rel="next"] {
    text-align: right;
    margin-right: 0.5em;
}

.license {
    color: var(--color-light-gray);
    font-size: 0.8em;
    margin: 2.4em 0;
}

article img {
    display: block;
    margin: 1em auto;
    max-width: 100%;
    max-height: 70vh;
    width: auto;
    height: auto;
}

article pre {
    background-color: var(--color-black);
    color: var(--color-light-green);
    font-size: 0.8rem;
    margin-bottom: 1rem;
    overflow-x: auto;
    padding: 0.8em;
}

article b,
i,
em {
    color: var(--color-white);
}

.license img {
    display: block;
    margin: 0 auto;
}

/* DOS TUI scrollbar. Mouse-driven devices only -- touch devices get native
   overlay scrollbars, and forcing a 16px bar there just steals screen width. */
@media (pointer: fine) {
    /* Firefox et al: no pseudo-elements, so two-tone is the best we get.
       Scoped, because Chrome 121+ discards ::-webkit-scrollbar rules on any
       element that also sets scrollbar-color. */
    @supports not selector(::-webkit-scrollbar) {
        html {
            scrollbar-color: var(--color-light-gray) var(--color-black);
        }
    }

    html {
        scrollbar-gutter: stable;
    }

    ::-webkit-scrollbar {
        width: 16px;
        height: 16px;
    }

    /* the shaded track: a 2x2 checkerboard is a 50% dither, i.e. the DOS ▒ */
    ::-webkit-scrollbar-track {
        background-color: var(--color-black);
        background-image: repeating-conic-gradient(
            var(--color-light-gray) 0% 25%,
            var(--color-black) 0% 50%
        );
        background-size: 4px 4px;
    }

    /* the solid █ thumb */
    ::-webkit-scrollbar-thumb {
        background-color: var(--color-light-gray);
    }
    ::-webkit-scrollbar-thumb:active {
        background-color: var(--color-white);
    }

    /* the ▲ / ▼ / ◄ / ► buttons. The arrow fill is hardcoded --color-black;
       var() does not work inside a data URI. */
    ::-webkit-scrollbar-button:vertical:decrement,
    ::-webkit-scrollbar-button:vertical:increment,
    ::-webkit-scrollbar-button:horizontal:decrement,
    ::-webkit-scrollbar-button:horizontal:increment {
        background-color: var(--color-light-gray);
        background-position: center;
        background-repeat: no-repeat;
        background-size: 8px 8px;
        display: block;
    }
    ::-webkit-scrollbar-button:vertical:decrement,
    ::-webkit-scrollbar-button:vertical:increment {
        height: 16px;
    }
    ::-webkit-scrollbar-button:horizontal:decrement,
    ::-webkit-scrollbar-button:horizontal:increment {
        width: 16px;
    }
    ::-webkit-scrollbar-button:active {
        background-color: var(--color-white);
    }
    ::-webkit-scrollbar-button:vertical:decrement {
        background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 8 8"><path d="M4 1L7 6H1Z" fill="%23000000"/></svg>');
    }
    ::-webkit-scrollbar-button:vertical:increment {
        background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 8 8"><path d="M4 7L1 2H7Z" fill="%23000000"/></svg>');
    }
    ::-webkit-scrollbar-button:horizontal:decrement {
        background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 8 8"><path d="M1 4L6 1V7Z" fill="%23000000"/></svg>');
    }
    ::-webkit-scrollbar-button:horizontal:increment {
        background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 8 8"><path d="M7 4L2 7V1Z" fill="%23000000"/></svg>');
    }

    ::-webkit-scrollbar-corner {
        background-color: var(--color-black);
    }

    /* 16px is overbearing next to 0.8rem code */
    article pre::-webkit-scrollbar {
        height: 12px;
    }
    article pre::-webkit-scrollbar-button:horizontal:decrement,
    article pre::-webkit-scrollbar-button:horizontal:increment {
        width: 12px;
    }
}

@media screen and (max-width: 600px) {
    .content,
    .license {
        width: 80%;
    }

    ul.links {
        align-items: center;
        flex-direction: column;
        gap: 1.2rem;
        width: 100%;
    }

    .bottom-bar {
        display: none;
    }
}