:root {
    --clr-text: #ebdbb2;
    --clr-brand: #fabd2f;
    --clr-bg-0: #282828;
    --clr-bg-1: #1d2021;
    color-scheme: dark;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

*:focus-visible {
    outline: 2px solid var(--clr-brand);
}

::selection {
    background-color: var(--clr-text);
    color: var(--clr-bg-0);
}

body {
    font-family: system-ui;
    background-color: var(--clr-bg-0);
    color: var(--clr-text);
    padding: 1rem;
    max-width: 1000px;
    margin: 0 auto;
    line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1;
    code {
        font-size: inherit;
    }
}

a {
    font-weight: bold;
    color: inherit;
    text-decoration-color: var(--clr-brand);
}

p code {
    background-color: #1d2021;
    padding: 0.25rem 0.5rem;
    border-radius: 0.5rem;
    font-size: 1rem;
}

pre code {
    border-radius: 0.5rem;
    font-size: 1rem;
}

h1, h2, h3, h4, h5, h6 {
    isolation: isolate;
    position: relative;
    max-width: max-content;

    background: var(--clr-bg-1);

    border-radius: 0 0.5rem 0.5rem 0;
    padding: 0.33em 0.5em;
    &::before {
        content: "";
        position: absolute;
        width: 3em;
        top: 0;
        bottom: 0;
        left: -3em;
        z-index: -1;
        background: linear-gradient(to left, var(--clr-bg-1), transparent);
        border-radius: 0.5rem 0 0 0.5rem;
    }
}

h2 {
    position: sticky;
    top: 0;
    z-index: 10;
}

table-of-contents h2 {
    position: initial;
}

table-of-contents {
    background: var(--clr-bg-1);
    border-radius: 0.5rem;
    padding: 1.5rem;
    display: block;
    max-width: max-content;
}

table-of-contents ul:first-of-type {
    font-size: 1.1em;
    padding-left: 1.5rem;
    margin: 0;
}

table-of-contents li: {
    margin-bottom: 0.25em;
}

table-of-contents h2 {
    padding-inline: 0;
    margin: 0;
    &::before {
        all: initial;
    }
}

h3 {
    font-size: 1.4em;
}