index.css

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Inconsolata&family=Merriweather+Sans:wght@300;400;600&display=swap');

html, body {
    position: relative;
    margin: 0;
}

body {
    font-family: 'Merriweather Sans', 'Roboto', sans-serif;
    font-size: 14px;
    font-weight: 300;
}

header {
    position: absolute;
    top: 0; left: 0;
    width: calc(100% - 48px);
    display: flex;
    padding: 12px 24px;
    z-index: 1000;
    transition: 0.2s linear background-color;
}

header:hover {
    background-color: #000000af;
    --logo-color: white;
}

header > * {
    align-self: center;
}

header > h1 {
    font-size: 18px;
    margin-block: 0;
    margin-left: 12px;
    flex-basis: 0;
    flex-grow: 1;
}

header > a {
    text-decoration: none;
    margin-left: 12px;
}

div[section] {
    position: relative;
    overflow: auto;
}

h1, h2, h3, h4, h5, h6 { width: fit-content; }
h1 { font-size: 42px; }
h2 { font-size: 32px; }
h3 { font-size: 24px; }
h4 {
    font-size: 18px;
    font-weight: 300;
}

[diagonal] {
    --diagonal-bg: #000000af;
    --diagonal-fg: #222222af;
    background-color: var(--diagonal-bg);
    background: repeating-linear-gradient(-45deg, var(--diagonal-fg), var(--diagonal-fg) 5px, var(--diagonal-bg) 5px, var(--diagonal-bg) 25px);
}

h1[diagonal] { padding: 18px; }

a {
    color: unset;
}

header > * {
    color: var(--logo-color);
    transition: 0.2s linear color;
}

code {
    font-family: 'Inconsolata', 'Consolas', monospace;
    font-size: 16px;
    background-color: #00000010;
    padding: 12px 15px;
    border-radius: 8px;
    user-select: all;
}

[underlined] {
    text-decoration: underline;
}

div.footer-top, div.footer-mid, div.footer-bot {
    display: flex;
}

div.footer-mid, div.footer-bot {
    margin-top: 24px;
}

div.footer-top > h1 {
    font-size: 18px;
    align-self: center;
    margin-block: 0;
    margin-left: 12px;
    flex-basis: 0;
    flex-grow: 1;
}

div.footer-mid {
    flex-grow: 4;
    flex-wrap: wrap;
}

div.footer-mid > div.col {
    flex: 1;
    flex-basis: 21%;
}

div.footer-mid > div.col > * {
    display: block;
    text-decoration: none;
}

div.footer-mid > div.col > h1 {
    font-size: 14px;
}

div.footer-bot {
    color: #afafaf;
}

a.logo {
    width: 32px;
    height: 32px;
    font-size: 0;
    mask-image: var(--icon);
    mask-size: cover;
    -webkit-mask-image: var(--icon);
    -webkit-mask-size: cover;
    background-color: white;
}

a.logo.github { --icon: url("./assets/ionicons/logo-github.svg"); }

a.logo.mangoplex {
    position: relative;
    width: 30px;
    height: 30px;
    border: 1px solid var(--logo-color);
    border-radius: 100%;
    order: 0;
    flex: 0 0 auto;
    transition: 0.2s linear border;
    background-color: transparent;
}

a.logo.mangoplex::before {
    content: '';
    position: absolute;
    left: 0; top: 0;
    width: 100%;
    height: 100%;
    mask-image: url("./assets/logo.svg");
    mask-size: cover;
    -webkit-mask-image: url("./assets/logo.svg");
    -webkit-mask-size: cover;
    background-color: var(--logo-color);
    border-radius: 100%;
    transition: 0.2s linear background-color;
}

@media screen and (min-width: 768px) {
    div[section] {
        padding: 36px 120px;
    }

    div[section][full] {
        min-height: calc(100vh - 72px);
    }
}

@media screen and (max-width: 768px) {
    div[section] {
        padding: 18px 32px;
    }

    div[section][full] {
        min-height: calc(100vh - 36px);
    }

    div.footer-mid > div.col {
        flex-basis: 50%;
    }
}