*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #f7f8fa;
    --surface: #ffffff;
    --text: #1b1f27;
    --text-soft: #454c59;
    --muted: #6b7280;
    --line: #e3e6ec;
    --accent: #0e9488;
    --accent-strong: #0b7e73;
    --max-width: 42rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0e1116;
        --surface: #151a22;
        --text: #e8edf5;
        --text-soft: #c4ccda;
        --muted: #8b96a8;
        --line: #262e3a;
        --accent: #2dd4bf;
        --accent-strong: #5eead4;
    }
}

html { -webkit-text-size-adjust: 100%; }

body {
    background: var(--bg);
    color: var(--text);
    font: 1.0625rem/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    text-rendering: optimizeLegibility;
}

a { color: var(--accent-strong); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover, a:focus { color: var(--accent); }

/* Keyboard users get the same visible ring on every theme: themes recolour
   --accent, they never have to restate this rule. */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    background: var(--accent);
    color: #04211d;
    padding: .6rem 1rem;
    border-radius: 0 0 .4rem 0;
    z-index: 10;
}
.skip-link:focus { left: 0; }

.site-header {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 1.25rem 1rem;
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: .75rem;
    border-bottom: 1px solid var(--line);
}
.site-brand a { color: var(--text); text-decoration: none; font-size: 1.375rem; font-weight: 700; }
.site-nav a { color: var(--muted); text-decoration: none; margin-left: 1rem; }
.site-nav a:first-child { margin-left: 0; }
.site-nav a:hover, .site-nav a:focus { color: var(--accent-strong); }

main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 1.25rem 3rem;
}

.site-description { color: var(--text-soft); margin-bottom: 2rem; }

.post-list { list-style: none; }
.post-summary {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--line);
}
.post-summary:first-child { padding-top: 0; }
.post-summary h2 { font-size: 1.25rem; line-height: 1.4; margin-bottom: .35rem; }
.post-summary h2 a { text-decoration: none; color: var(--text); }
.post-summary h2 a:hover, .post-summary h2 a:focus { color: var(--accent-strong); }

.post-meta { color: var(--muted); font-size: .875rem; margin-bottom: .5rem; }
.post-meta a { color: var(--muted); }
.post-meta a:hover, .post-meta a:focus { color: var(--accent-strong); }

.post-excerpt { color: var(--text-soft); }
.empty { color: var(--muted); }

article h1 { font-size: 1.75rem; line-height: 1.3; margin-bottom: .5rem; }

.post-body { margin-top: 1.5rem; }
.post-body p { margin: 0 0 1.1rem; }
.post-body a { word-break: break-word; }
.post-body img { max-width: 100%; height: auto; border-radius: .4rem; }
.post-body pre {
    overflow-x: auto;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: .4rem;
    padding: .9rem;
}
.post-body blockquote {
    margin: 0 0 1.1rem;
    padding-left: 1rem;
    border-left: 3px solid var(--line);
    color: var(--text-soft);
}

.post-media {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}
.post-media-item { border-radius: .4rem; overflow: hidden; background: var(--surface); }
.post-media-item img,
.post-media-item video { display: block; width: 100%; height: auto; border-radius: .4rem; }
.post-media-item audio { width: 100%; }
.post-media-item figcaption {
    padding: .5rem .1rem 0;
    color: var(--muted);
    font-size: .8125rem;
}
.post-media-cw {
    margin-top: 1.5rem;
    border: 1px solid var(--line);
    border-radius: .4rem;
    padding: .75rem 1rem;
}
.post-media-cw summary { cursor: pointer; font-weight: 600; color: var(--text-soft); }
.post-media-cw .post-media { margin-top: 1rem; }

.post-replies { margin-top: 2.5rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.reply-list { padding-left: 1.5rem; }
.blog-reply { margin: 1rem 0; }
.blog-reply header { color: var(--muted); font-size: .9rem; }

.post-pager {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
    font-size: .9375rem;
}
.post-pager a { text-decoration: none; }

.back-link { margin-top: 2rem; font-size: .9375rem; }

.site-footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.5rem 1.25rem 2.5rem;
    color: var(--muted);
    font-size: .8125rem;
}

.archive-year {
    font-size: 1.1rem;
    margin: 2rem 0 .5rem;
    padding-bottom: .35rem;
    border-bottom: 1px solid var(--line);
}
.archive-year:first-of-type { margin-top: 0; }
.archive-entry {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: .6rem;
    padding: .6rem 0;
    border-bottom: none;
}
.archive-entry time { color: var(--muted); font-size: .8125rem; flex: 0 0 auto; }
.archive-entry a { text-decoration: none; color: var(--text); }
.archive-entry a:hover, .archive-entry a:focus { color: var(--accent-strong); }

.tag-list { list-style: none; }
.tag-list li {
    display: flex;
    justify-content: space-between;
    padding: .6rem 0;
    border-bottom: 1px solid var(--line);
}
.tag-list a { text-decoration: none; color: var(--text); }
.tag-list a:hover, .tag-list a:focus { color: var(--accent-strong); }
.tag-count { color: var(--muted); font-size: .875rem; }

@media (max-width: 30rem) {
    .site-header { padding-top: 1.5rem; }
    article h1 { font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}

/* On paper the navigation leads nowhere, so it goes; link targets inside the
   post do not survive the trip either, so they are spelled out. */
@media print {
    body { background: #fff; color: #000; font-size: 11pt; }
    .skip-link, .site-nav, .post-pager, .back-link, .fediverse-thread-link { display: none; }
    a { color: #000; }
    .post-body a[href^="http"]::after { content: " (" attr(href) ")"; font-size: .85em; word-break: break-all; }
    .post-body pre, .post-media-item { break-inside: avoid; }
}


/* theme: ledger */
/* Ledger - technical notes and devlogs.
 *
 * The generator stamps every post with an ISO-style timestamp. Here that
 * timestamp is the alignment device: metadata, headings and navigation are
 * monospaced and sit on one column, prose is sans and sits on another, and
 * code breaks out past the reading measure because a wrapped command line is
 * a bug report waiting to happen.
 *
 * System faces only - no web font is fetched, so an offline copy of the site
 * looks the same as the served one. */

:root {
    --bg: #f4f5f7;
    --surface: #ffffff;
    --text: #12161c;
    --text-soft: #39424e;
    --muted: #59636f;
    --line: #dde1e7;
    --accent: #1b4fd8;
    --accent-strong: #163fae;
    --max-width: 40rem;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
    --font-body: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1319;
        --surface: #161b23;
        --text: #dce2ea;
        --text-soft: #b4becb;
        --muted: #8792a0;
        --line: #232b35;
        --accent: #88abff;
        --accent-strong: #a9c4ff;
    }
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
}

.site-brand a, .site-nav a, .post-meta, .post-summary h2, article h1,
.archive-year, .archive-entry, .tag-list, .post-pager, .back-link,
.site-footer, .blog-reply header, .post-media-item figcaption {
    font-family: var(--font-mono);
}

.site-header {
    padding-top: 1.5rem;
    border-bottom: 1px solid var(--text);
}
.site-brand a { font-size: 1.125rem; font-weight: 600; letter-spacing: -.02em; }
.site-brand a::before { content: "$ "; color: var(--muted); }
.site-nav { font-size: .8125rem; }
.site-nav a { text-transform: lowercase; }
.site-nav a::before { content: "/"; color: var(--line); margin-right: .15rem; }

.site-description { border-left: 2px solid var(--accent); padding-left: .9rem; }

.post-summary { padding: 1.25rem 0; }
.post-summary h2 { font-size: 1.0625rem; font-weight: 600; letter-spacing: -.01em; }
.post-meta { font-size: .8125rem; font-variant-numeric: tabular-nums; }
.post-meta time { color: var(--accent-strong); }
.post-meta a { text-decoration: none; }
.post-meta a:hover, .post-meta a:focus { text-decoration: underline; }

article h1 { font-size: 1.5rem; font-weight: 600; letter-spacing: -.02em; }

.post-body h2, .post-body h3 { font-family: var(--font-mono); letter-spacing: -.01em; margin: 1.75rem 0 .6rem; }
.post-body code { font-family: var(--font-mono); font-size: .9375em; background: var(--surface); border: 1px solid var(--line); padding: 0 .2rem; }
.post-body pre {
    border-radius: 0;
    border: 1px solid var(--line);
    border-left: 3px solid var(--accent);
    font-size: .875rem;
    line-height: 1.5;
}
.post-body pre code { background: none; border: none; padding: 0; }
.post-body blockquote { border-left: 3px solid var(--line); }
.post-media-item, .post-media-item img, .post-media-item video, .post-body img { border-radius: 0; }
.post-media-cw { border-radius: 0; }

/* Code and figures are allowed past the reading measure, but only once the
   viewport can pay for it. */
@media (min-width: 56rem) {
    .post-body pre, .post-media { margin-inline: -4rem; }
    .post-body pre { padding-inline: 4rem; }
}

/* The archive is the actual ledger: one fixed timestamp column, entries
   aligned against it. */
.archive-year {
    font-size: .875rem;
    letter-spacing: .1em;
    border-bottom: 1px solid var(--text);
}
.archive-entry { font-size: .9375rem; gap: 1rem; }
.archive-entry time { flex: 0 0 10.5rem; font-variant-numeric: tabular-nums; color: var(--accent-strong); }

.tag-list li { border-bottom: 1px dashed var(--line); font-size: .9375rem; }
.tag-count { font-variant-numeric: tabular-nums; }

.post-pager { font-size: .8125rem; border-top: 1px solid var(--text); }
.site-footer { font-size: .75rem; }