hugo-theme-relearn/css/theme-neon.css

/* here in this showcase we use our own modified chroma syntax highlightning style;
   if you want to use a predefined style instead:
   - remove `markup.highlight.noClasses` from your config.toml
   - set `markup.highlight.style` to a predefined style name in your config.toml
   - remove the following `@import` of the self-defined chroma stylesheet */
@import "chroma-neon.css";

:root {
    --MAIN-TEXT-color: #e0e0e0; /* Color of text by default */
    --MAIN-TITLES-TEXT-color: #f300b2; /* Color of titles h2-h3-h4-h5-h6 */

    /* optional overwrites for specific headers */
    --MAIN-TITLES-H3-color: #00f3d3; /* Color of h3 headlines */
    --MAIN-TITLES-H4-color: #ffff00; /* Color of h4 headlines */

    --MAIN-LINK-color: #1c90f3; /* Color of links */
    --MAIN-LINK-HOVER-color: #4cabff; /* Color of hovered links */
    --MAIN-ANCHOR-color: #4cabff; /* color of anchors on titles */
    --MAIN-BG-color: #202020; /* color for code background */

    /* adjusted to neon chroma style */
    --CODE-BLOCK-color: #f8f8f2; /* fallback color for block code text */
    --CODE-BLOCK-BG-color: #000000; /* fallback color for block code background */
    --CODE-BLOCK-BORDER-color: #000000; /* color of block code border */

    --CODE-INLINE-color: #82e550; /* color for inline code text */
    --CODE-INLINE-BG-color: #282a36; /* color for inline code background */
    --CODE-INLINE-BORDER-color: #464646; /* color of inline code border */

    --TAG-BG-color: #04d1b5; /* Background color of menu header */

    --MENU-HOME-LINK-color: #323232; /* Color of the home button text */
    --MENU-HOME-LINK-HOVER-color: #5e5e5e; /* Color of the hovered home button text */

    --MENU-HEADER-BG-color: rgba( 0, 0, 0, 0 ); /* Background color of menu header */
    --MENU-HEADER-BORDER-color: rgba( 0, 0, 0, 0 ); /*Color of menu header border */

    --MENU-SEARCH-color: #e0e0e0; /* Color of search field text */
    --MENU-SEARCH-BG-color: #323232; /* Search field background color (by default borders + icons) */
    --MENU-SEARCH-BORDER-color: #e0e0e0; /* Override search field border color */

    --MENU-SECTIONS-ACTIVE-BG-color: rgba( 0, 0, 0, .166 ); /* Background color of the active section and its children */
    --MENU-SECTIONS-BG-color: linear-gradient( 165deg, #f300b2d3 0%, #1c90f3b3 65%, #00e3d3b3 100% ); /* Background color of side bar */
    --MENU-SECTIONS-LINK-color: #ffffff; /* Color of links in menu */
    --MENU-SECTIONS-LINK-HOVER-color: #d0d0d0;  /* Color of links in menu, when hovered */
    --MENU-SECTION-ACTIVE-CATEGORY-color: #56ffe8; /* Color of active category text */
    --MENU-SECTION-ACTIVE-CATEGORY-BG-color: #202020; /* Color of background for the active category (only) */

    --MENU-VISITED-color: #33a1ff; /* Color of 'page visited' icons in menu */
    --MENU-SECTION-HR-color: #bababa; /* Color of <hr> separator in menu */

    /* base styling for boxes */
    --BOX-CAPTION-color: rgba( 240, 240, 240, 1 ); /* color of the title text */
    --BOX-BG-color: rgba( 20, 20, 20, 1 ); /* color of the content background */
    --BOX-TEXT-color: initial; /* automatic color of the content text */

    /* optional base colors for colored boxes as in attachments and notice shortcode */
    --BOX-BLUE-color: rgba( 48, 117, 229, 1 );
    --BOX-GREEN-color: rgba( 42, 178, 24, 1 );
    --BOX-GREY-color: rgba( 128, 128, 128, 1 );
    --BOX-ORANGE-color: rgba( 237, 153, 9, 1 );
    --BOX-RED-color: rgba( 224, 62, 62, 1 );

    --BOX-BLUE-TEXT-color: var(--BOX-BLUE-color);
    --BOX-GREEN-TEXT-color: var(--BOX-GREEN-color);
    --BOX-GREY-TEXT-color: var(--BOX-GREY-color);
    --BOX-ORANGE-TEXT-color: var(--BOX-ORANGE-color);
    --BOX-RED-TEXT-color: var(--BOX-RED-color);
}

body a#logo,
body #logo svg,
body #logo svg * {
  color: var(--INTERNAL-MENU-SEARCH-BORDER-color);
  fill: var(--INTERNAL-MENU-SEARCH-BORDER-color) !important;
}

body a#logo{
    color: #fff;
    text-shadow:
        0 0  1px #fff,
        0 0  2px #fff,
        0 0  6px var(--INTERNAL-MENU-SECTIONS-LINK-HOVER-color),
        0 0  8px var(--INTERNAL-MENU-SECTIONS-LINK-HOVER-color);
}

body h1 {
    color: #fff;
    text-shadow:
        0 0  1px #fff,
        0 0  2px #fff,
        0 0  4px #fff,
        0 0  8px #fff,
        0 0  3px var(--INTERNAL-MAIN-TITLES-H1-color),
        0 0  6px var(--INTERNAL-MAIN-TITLES-H1-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H1-color);
}

body h2 {
    color: #fff;
    text-shadow:
        0 0  1px #fff,
        0 0  2px #fff,
        0 0  8px #808080,
        0 0  4px var(--INTERNAL-MAIN-TITLES-H2-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H2-color),
        0 0 10px var(--INTERNAL-MAIN-TITLES-H2-color);
}

body h3 {
    color: #fff;
    text-shadow:
        0 0  1px #fff,
        0 0  2px #fff,
        0 0  8px #808080,
        0 0  4px var(--INTERNAL-MAIN-TITLES-H3-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H3-color),
        0 0 10px var(--INTERNAL-MAIN-TITLES-H3-color);
}

body h4 {
    color: #fff;
    text-shadow:
        0 0  1px #fff,
        0 0  2px #fff,
        0 0  8px #808080,
        0 0  4px var(--INTERNAL-MAIN-TITLES-H4-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H4-color),
        0 0 10px var(--INTERNAL-MAIN-TITLES-H4-color);
}

body h5 {
    color: #fff;
    text-shadow:
        0 0  1px #fff,
        0 0  2px #fff,
        0 0  8px #808080,
        0 0  4px var(--INTERNAL-MAIN-TITLES-H5-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H5-color),
        0 0 10px var(--INTERNAL-MAIN-TITLES-H5-color);
}

body h6 {
    color: #fff;
    text-shadow:
        0 0  1px #fff,
        0 0  2px #fff,
        0 0  8px #808080,
        0 0  4px var(--INTERNAL-MAIN-TITLES-H6-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H6-color),
        0 0 10px var(--INTERNAL-MAIN-TITLES-H5-color);
}

body #sidebar ul li.active > a {
    color: #fff;
    text-shadow:
        0 0  1px #fff,
        0 0  2px #fff,
        0 0  8px #808080,
        0 0  4px var(--INTERNAL-MENU-SECTION-ACTIVE-CATEGORY-color),
        0 0  8px var(--INTERNAL-MENU-SECTION-ACTIVE-CATEGORY-color);
}

body #sidebar select:hover,
body #sidebar a:hover {
    color: #fff;
    text-shadow:
        0 0  1px #fff,
        0 0  2px #fff,
        0 0  8px #808080,
        0 0  4px var(--INTERNAL-MENU-SECTIONS-LINK-HOVER-color),
        0 0  8px var(--INTERNAL-MENU-SECTIONS-LINK-HOVER-color);
}

body h1 a,
body h2 a,
body h3 a,
body h4 a,
body h5 a,
body h6 a,
body .anchor {
    text-shadow: none;
}

body div.box {
    box-shadow:
        0 0  1px #fff,
        0 0  2px #fff,
        0 0  4px #808080,
        0 0  4px var(--VARIABLE-BOX-color),
        0 0  8px var(--VARIABLE-BOX-color);
}

body div.box > .box-label {
    text-shadow:
        0 0  1px #fff,
        0 0  2px #fff,
        0 0  4px #808080,
        0 0  4px var(--VARIABLE-BOX-CAPTION-color),
        0 0  8px var(--VARIABLE-BOX-CAPTION-color);
}

body div.box.transparent {
    box-shadow: none;
}

@media print {
    #body h1,
    #body h2,
    #body h3,
    #body h4,
    #body h5,
    #body h6 {
        color: #fff;
        text-shadow: none;
    }
    #body div.box,
    #body div.box > .box-label {
        box-shadow: none;
        text-shadow: none;
    }
}