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

* {
    margin: 0;
}

html {
    -moz-text-size-adjust: none;
    -webkit-text-size-adjust: none;
    text-size-adjust: none;
    tab-size: 4;
    font-size: 1.2em;
}

body {
    margin: 0;
}

:root {
    color-scheme: light dark;
    --color-black: black;
    --color-white: white;
    --color-fg: light-dark(var(--color-black), var(--color-white));
    --color-bg: light-dark(var(--color-white), var(--color-black));
    --color-accent: light-dark(
	color-mix(in hsl, rebeccapurple, black 10%),
	color-mix(in hsl, rebeccapurple, white 30%)
    );
    --color-border: light-dark(#aaaaaa, #555555);
    --color-bg-box: light-dark(#f0f0f0, #303030);
    --font-family-serif: "Alegreya", "Noto Serif SC", serif;
    --font-family-sans: "Alegreya Sans", "Noto Sans SC", system-ui, --apple-system, sans-serif;
    --font-family-mono: "IBM Plex Mono", monospace;
    --border-dashed: dashed 0.1rem var(--color-border);
    @media (prefers-contrast: less) {
	--_color-black: hsl(0, 0%, 10%);
	--_color-white: hsl(0, 0%, 85%);
    }
}

body {
    font-family: var(--font-family-serif);
    width: clamp(10rem, 90%, 55rem);
    margin-inline: auto;
    color: var(--color-fg);
    background-color: var(--color-bg);
}

main {
    max-width: 70ch;
    line-height: 1.4;
}

img {
    max-width: 100%;
    height: auto;
}

h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
    text-wrap: balance;
    font-weight: 500;
    line-height: 1;
}

h1 {
    margin-block-start: 3.0rem;
    margin-block-end: 1.3rem;
    font-size: 2.6rem;
}

h2 {
    margin-block-start: 2.1rem;
    margin-block-end: 1.2rem;
    font-size: 2.0rem;
}

h3 {
    margin-block-start: 1.4rem;
    margin-block-end: 1.2rem;
    font-size: 1.3rem;
}

p {
    overflow-wrap: break-word;
    line-height: 1.4;
    margin-block-end: 0.8rem;
}

ul, ol {
    padding-inline-start: 1rem;
    margin-block-end: 0.8rem;
}

li {
    ul, ol {
        margin-block-end: 0;
    }
}

pre,
code {
    font-family: var(--font-family-mono);
    font-weight: 500;
    background-color: var(--color-bg-box);
    font-size: 0.85rem;
}

pre {
    margin-block-end: 0.5rem;
    padding: 0.5rem;
}

header {
    margin-block-start: 1rem;
    margin-block-end: 2rem;
}

footer {
    font-size: 0.875rem;
    text-align: center;
}

blockquote {
    margin-block-end: 0.8rem;
    padding: 0 1rem;
    border-inline-start: solid 0.1rem var(--color-border);
}

article.tweet {
    border: var(--border-dashed);
    + article.tweet {
        border-top: 0;
    }
    div.date {
        font-family: var(--font-family-mono);
        font-size: 0.9em;
        font-weight: 200;
        border-right: var(--border-dashed);
        border-bottom: var(--border-dashed);
        width: fit-content;
        padding: 0 0.25rem;
    }
    div.content {
        padding: 0.8rem 0.6rem 0 0.8rem;
    }
}