:root {
    --lt-blue: rgb(69, 212, 243);
    --mid-blue: rgb(26, 169, 239);
    --dk-blue: rgb(63, 46, 231);
    --purple: rgb(161, 49, 232);
    --lilac: rgb(187, 121, 245);

    --background-color: #fff;
    --foreground-body-color: rgba(0, 0, 0, 0.8);
    --foreground-header-color: #000;

    --separator-color: #dfdfdf;
    --header-border-color: var(--separator-color);
    --footer-border-color: var(--separator-color);

    --box-shadow-color: rgba(230, 230, 230, 0.8);
    --header-box-shadow-color: var(--box-shadow-color);

    --font-family-body: Verdana, Helvetica, sans-serif;
    --font-family-heading: Museo_Slab, Tahoma, sans-serif;
    --font-family-site-heading: /*Krungthep,*/ Museo_Slab, Tahoma, sans-serif;
    --font-size-min: 7px;
    --font-size-max: 8px;

    --body-item-spacing: 1em;

    --content-width: 80rem;

    --transition-duration: 0.7s;

    --twitter-icon: url(/icons/twitter.svg);
    --github-icon: url(/icons/github.svg);
    --instagram-icon: url(/icons/instagram.svg);
    --rss-icon: url(/icons/rss.svg);
}
@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #000;
        --foreground-body-color: rgba(255, 255, 255, 0.8);
        --foreground-header-color: #fff;
        --separator-color: #222;
        --box-shadow-color: rgba(25, 25, 25, 0.8);

        --twitter-icon: url(/icons/twitter-dark.svg);
        --github-icon: url(/icons/github-dark.svg);
        --instagram-icon: url(/icons/instagram-dark.svg);
        --rss-icon: url(/icons/rss-dark.svg);
    }
}

a {
    color: var(--mid-blue);
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
    text-underline-offset: 0.12em;
}
a:visited { color: none; }

body {
    color: var(--foreground-body-color);
    font-size: 2rem;
    line-height: 1.2;
}

figcaption {
    font-size: 75%;
    margin-block-start: 0.2em;
    text-align: center;
}

figure {
    border-radius: 6px;
    display: inline-block;
    margin: 0;
    margin-block: 0 var(--body-item-spacing);
    margin-inline: 0;
    overflow: hidden;
    max-width: var(--content-width);
    width: 100%;
}

figure a,
figure a:hover {
    border: 0;
}

figure img {
    border-radius: 6px;
    height: auto;
    max-width: var(--content-width);
    width: 100%;
}

figure .youtube {
    border-radius: 6px;
    line-height: 1;
    overflow: hidden;
    max-width: var(--content-width);
    width: 100%;
}

footer.site {
    align-items: center;
    display: flex;
    flex-direction: column;
    font-size: 1.6rem;
    margin-block-start: 2rem;
    text-align: center;
}

footer.site > div {
    border-top: 1px solid var(--footer-border-color);
    padding-block-start: 2rem;
    max-width: var(--content-width);
    width: 100%;
}

footer.site ul {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    list-style: none;
}

footer.site .slogans li {
    margin-inline-start: 0.5em;
}

footer.site p {
    margin: 0;
}

footer.site p + p {
    margin-top: 0.25rem;
}

@media (max-width: 740px) {
    footer.site .slogans span {
        white-space: nowrap;
    }
}

h1, h2, h3, h4, h5, h6 {
    color: var(--foreground-header-color);
    font-family: var(--font-family-heading);
    margin-block: 1em 0.25em;
}

html {
    background-color: var(--background-color);
    color: var(--foreground-color);
    font-family: var(--font-family-body);
    font-size: clamp(var(--font-size-min), 1vw, var(--font-size-max));
}

main {
    max-width: var(--content-width);
    margin: 0 auto;
    margin-block-start: 10.5rem;
    width: 100%;
}

h1.site {
    color: var(--mid-blue);
}
@supports (background-clip: text) {
    h1.site {
        background:
            radial-gradient(circle at 20% 70%, var(--purple), transparent 40%),
            radial-gradient(circle at 30% 30%, var(--lt-blue), var(--mid-blue) 20%, transparent 80%),
            radial-gradient(ellipse at 95% 20%, var(--dk-blue), var(--mid-blue) 70%, transparent 80%),
            radial-gradient(circle at 100% 100%, var(--purple), var(--lilac) 100%),
            radial-gradient(circle at 45% 100%, var(--lilac), var(--purple) 60%),
            radial-gradient(ellipse at 50% 50%, var(--dk-blue), transparent 80%);
        background-clip: text;
        color: transparent;
    }
}

h1.site * { color: inherit; }

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: 0.08em;
}

header.site {
    display: flex;
    left: 0;
    position: fixed;
    top: 0.5rem;
    visibility: hidden;
    width: 100%;
    z-index: 10000;
}
header.site.visible {
    visibility: visible;
}
header.site.animated {
    animation: site-header-slide-in var(--transition-duration) ease-out;
}
@keyframes site-header-slide-in {
    from {
        top: -200px;
    }
    to {
        top: 0.5rem;
    }
}

header.site h1 {
    font-family: var(--font-family-site-heading);
    margin: 0;
}

header.site .grid {
    align-items: baseline;
    display: grid;
    gap: 0.5em;
    grid-template-columns: max-content auto max-content;
    grid-template-rows: max-content;
    grid-template-areas:
        "title menu social";
    max-width: var(--content-width);
    width: var(--content-width);
}
@media (max-width: 450px) {
    header.site .grid {
        grid-template-columns: repeat(2, max-content);
        grid-template-rows: repeat(2, max-content);
        grid-template-areas:
            "title social"
            "menu menu";
        max-width: var(--content-width);
        width: inherit;
    }
}

header.site .platter {
    margin: 0 auto;
    padding: 1.5rem 3rem;
}

header.site .grid nav:first-of-type {
    grid-area: menu;
    justify-content: start;
}

header.site .grid nav:last-of-type {
    grid-area: social;
    justify-content: end;
}

img {
    height: auto;
    max-width: 100%;
}

nav.site {
    align-items: center;
    display: flex;
    font-size: max(1.5rem, 80%);
    justify-content: start;
    letter-spacing: 0.12em;
    list-style: none;
    text-transform: lowercase;
}

nav.site li {
    color: var(--mid-blue);
    display: block;
    margin-inline-end: 0.5em;
}
nav.site .active { font-weight: bold; }

nav.bulleted li:first-child::before {
    color: var(--foreground-color);
    content: "";
    margin-inline-end: 0;
}

nav.bulleted li::before {
    color: var(--foreground-header-color);
    content: "•";
    font-size: 60%;
    font-weight: normal;
    opacity: 80%;
    margin-inline-end: 0.5em;
}

p {
    letter-spacing: 0.025em;
    line-height: 1.4;
}
p { margin-block-end: var(--body-item-spacing); }
p:last-child { margin-block-end: 0; }

/** SYNTAX HIGHLIGHTING **/

.highlight .line {
    display: grid;
    grid-template-columns: max-content auto;
}

.highlight .ln a {
    -webkit-user-select: none;
    -moz-use-select: none;
    -ms-user-select: none;
    user-select: none;
}

.highlight .cl {
    white-space: pre-wrap;
}

/** HELPER CLASSES **/

.centered { text-align: center; }
.nobreak { white-space: nowrap; }

.platter {
    background: var(--background-color);
    border: 1px solid var(--header-border-color);
    border-radius: 12px;
    box-shadow: 4px 5px 5px var(--header-box-shadow-color);
}

.visible { visibility: visible; }