:root {
    color-scheme: dark light;

    --primary-hue: 192;
    --secondary-hue: 41;
    --saturation: 100%;
    --lightness: 25%;

    --primary: hsl(var(--primary-hue), var(--saturation), var(--lightness));
    --secondary: hsl(var(--secondary-hue), var(--saturation), var(--lightness));
}

@font-face {
    font-family: "M PLUS 2";
    font-display: swap;
    src: url("MPLUS2.ttf"), local("M PLUS 2");
}

@font-face {
    font-family: "M PLUS 1 Code";
    font-display: swap;
    src: url("MPLUS1Code.ttf"), local("M PLUS 1 Code");
}

html {
    height: 100%;
    width: 100%;
    font-family: "M PLUS 2", sans-serif;
    line-height: 120%;
    text-rendering: optimizeLegibility;
}

h1 {
    font-size: 150%;
    line-height: 110%;
}

h2 {
    font-size: 115%;
}

h3 {
    font-size: 100%;
}

b {
    color: hsl(var(--secondary-hue), var(--saturation), 30%);
}

u {
    text-decoration-color: var(--secondary);
}

pre, code {
    font-family: "M PLUS 1 Code", monospace;
    color: var(--secondary);
    background-color: #eee;
    border-radius: 4px;
}

body {
    background: hsl(var(--primary-hue), 10%, 99%);
    display: grid;
    grid-template-rows: auto 1fr auto;
    height: 100%;
    width: 100%;
}

header {
    display: flex;
    flex-direction: row;
    align-items: center;        /* Vertical align */
    background: hsl(var(--secondary-hue), 10%, 74%);
    margin-bottom: 1rem;
    border-bottom: 1px solid black;
    padding: 0.5rem 0;

    font-size: 125%;
    line-height: 150%;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

header * {
    margin: 0.1rem 0.25rem auto;
}

header > * {
    display: flex;
    align-items: center;
}

header > .left {
    justify-content: left;
}

header > .fill {
    flex: 1;
}

header > .right {
    justify-content: right;
}

header p {
    margin: 0;
}

body > header svg,
body > header img {
    margin: 0.1rem;
    height: 2.5rem;
    width: 2.5rem;
}

footer {
    display: flex;
    background: hsl(var(--primary-hue), 10%, 94%);
    flex-direction: column;
    justify-content: center;
    text-align: center;
    font-height: 80%;
    padding: 0.5rem;
    border-top: 1px solid black;
}

#banners img {
    height: 1.5rem;
}

a {
    color: var(--secondary);
    text-decoration: none;
}

a:hover {
    color: var(--primary);
    background-color: #eee;
    border-radius: 4px;
}

a:visited {
    color: var(--primary);
}

#banners a,
header a,
header a:visited {
    color: currentcolor;
}

#banners a:hover,
header a:hover {
    background-color: transparent;
    border-radius: 0;
}

fieldset {
    background: hsl(var(--primary-hue), 10%, 90%);
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}

fieldset > * {
    padding-right: 0.5rem;
    border-right: 1px solid gray;
    margin-right: 0.5rem;
}

fieldset > :last-child {
    padding-right: initial;
    border-right: initial;
    margin-right: initial;
}

.field-row {
    display: flex;
    flex-direction: row;
}

.field-row label {
    margin-right: 1rem;
}

@media (min-width: 1140px) {
    body > main {
        margin-left: 14rem;
        margin-right: 4rem;
        max-width: 52rem;
    }
}

@media (min-width: 800px) and (max-width: 1140px) {
    body > main {
        margin-left: 6rem;
        margin-right: 4rem;
        max-width: 52rem;
    }
}

@media (max-width: 800px) {
    body > main {
        margin-left: 1rem;
        margin-right: 1rem;
    }
}

@media (prefers-color-scheme: dark) {
    body {
        background: hsl(var(--primary-hue), 10%, 17%);
    }

    fieldset {
        background: hsl(var(--primary-hue), 10%, 17%);
    }

    header {
        background: hsl(var(--secondary-hue), 10%, 12%);
    }

    footer {
        background: hsl(var(--primary-hue), 10%, 15%);
    }

    b {
        color: hsl(var(--secondary-hue), var(--saturation), 75%);
    }
}