@font-face
{
    font-family: "Fundamental Prose Text";
    src: url("/fonts/FundamentalProse-Text.otf") format("opentype");
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face
{
    font-family: "Fundamental Prose Display";
    src: url("/fonts/FundamentalProse-Display.otf") format("opentype");
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face
{
    font-family: "Fundamental Prose Subhead";
    src: url("/fonts/FundamentalProse-Subhead.otf") format("opentype");
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face
{
    font-family: "Fundamental Mono";
    src: url("/fonts/FundamentalMono-Code.otf") format("opentype");
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

:root
{
    color-scheme: light;
    font-family: "Fundamental Prose Text", "New York", "Iowan Old Style", Georgia, serif;
    --paper: #f3efe6;
    --paper-bright: #fbfaf6;
    --ink: #1e2428;
    --muted: #72726b;
    --line: #d9d3c7;
    --accent: #94533f;
    --accent-soft: #ead6c8;
}

*
{
    margin: 0;
    box-sizing: border-box;
}

body
{
    background: var(--paper);
    color: var(--ink);
    line-height: 1.6;
}

main
{
    max-width: 42rem;
    margin: 0 auto;
    padding: 4rem 1.5rem 6rem;
}

header.site
{
    margin-bottom: 3rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--line);
}

header.site a
{
    color: var(--muted);
    font-size: 0.9rem;
    text-decoration: none;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

h1
{
    margin-bottom: 1.5rem;
    font-family: "Fundamental Prose Display", "New York", Georgia, serif;
    font-size: 2.1rem;
    font-weight: 500;
    line-height: 1.2;
}

h2
{
    margin: 2.5rem 0 0.75rem;
    font-family: "Fundamental Prose Subhead", "New York", Georgia, serif;
    font-size: 1.35rem;
    font-weight: 500;
}

p
{
    margin: 1rem 0;
}

a
{
    color: var(--accent);
}

code
{
    font-family: "Fundamental Mono", ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 0.9em;
    background: var(--paper-bright);
    padding: 0.1em 0.3em;
    border: 1px solid var(--line);
    border-radius: 0.25rem;
}

pre
{
    margin: 1.25rem 0;
    padding: 1rem 1.25rem;
    overflow-x: auto;
    background: var(--paper-bright);
    border: 1px solid var(--line);
    border-radius: 0.6rem;
}

pre code
{
    background: none;
    border: none;
    padding: 0;
    font-size: 0.85rem;
    line-height: 1.55;
}

ul.lessons
{
    list-style: none;
    padding: 0;
}

ul.lessons li
{
    margin: 0.75rem 0;
    padding: 1rem 1.25rem;
    background: var(--paper-bright);
    border: 1px solid var(--line);
    border-radius: 0.6rem;
}

ul.lessons li span
{
    display: block;
    color: var(--muted);
    font-size: 0.85rem;
}

p.seen-in
{
    margin-top: 3rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.9rem;
}

button.copy-markdown
{
    margin-bottom: 1rem;
    padding: 0.4rem 0.9rem;
    font-family: "Fundamental Mono", ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 0.8rem;
    color: var(--accent);
    background: var(--paper-bright);
    border: 1px solid var(--line);
    border-radius: 0.4rem;
    cursor: pointer;
}

button.copy-markdown:hover
{
    background: var(--accent-soft);
}