:root {
    --ink: #1b1917;
    --ink-secondary: #514b46;
    --ink-muted: #6d655f;
    --surface: #fbfaf8;
    --surface-raised: #fff;
    --surface-warm: #f2efea;
    --accent: #9f432b;
    --accent-hover: #7f321f;
    --accent-light: #f7e9e4;
    --border: #d8d2ca;
    --border-strong: #b9afa4;
    --code-bg: #292725;
    --code-text: #f5f1eb;
    --serif: "Newsreader", Georgia, serif;
    --sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --mono: "JetBrains Mono", Consolas, monospace;
    --max-w: 720px;
    --radius: 6px;
    --shadow-subtle: 0 8px 24px rgba(45, 37, 31, .06);
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: var(--surface);
    color: var(--ink);
    font-family: var(--sans);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
a { text-underline-offset: .18em; }
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
    border-radius: 2px;
    outline: 3px solid var(--accent);
    outline-offset: 4px;
}
::selection { background: #edd0c6; color: var(--ink); }

header, main, article, footer { max-width: var(--max-w); margin-inline: auto; }
header { padding: 3rem 1.5rem 2rem; }
.site-identity { display: flex; align-items: center; gap: 1.25rem; margin-bottom: 1rem; }
.avatar {
    display: flex;
    width: 64px;
    height: 64px;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-family: var(--serif);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -.02em;
}
.site-name { color: var(--ink); font-family: var(--serif); font-size: 1.65rem; font-weight: 600; letter-spacing: -.02em; line-height: 1.25; }
.site-name a { color: inherit; text-decoration: none; }
.site-tagline { margin-bottom: 1.5rem; color: var(--ink-secondary); font-family: var(--serif); font-size: 1.05rem; font-style: italic; line-height: 1.5; }
nav { display: flex; flex-wrap: wrap; gap: .75rem 1.75rem; padding-bottom: 1.5rem; border-bottom: 1.5px solid var(--border); }
nav a { color: var(--ink-secondary); font-size: .88rem; font-weight: 500; letter-spacing: .02em; text-decoration: none; transition: color .2s; }
nav a:hover, nav a.active { color: var(--accent-hover); }
nav a[aria-current="page"] { color: var(--accent); font-weight: 600; text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: .35rem; }

main, article { padding: 0 1.5rem 4rem; }
.about-page main { padding-top: 2rem; }
h1 { margin-bottom: 1.5rem; font-family: var(--serif); font-size: 2rem; font-weight: 600; letter-spacing: -.025em; line-height: 1.2; text-wrap: balance; }
.intro { padding: 2.5rem 0 2rem; }
.intro p { max-width: 65ch; color: var(--ink-secondary); font-size: 1rem; line-height: 1.8; }
.intro p + p { margin-top: .75rem; }
.intro a, .about-content a, .prose a { color: var(--accent); text-decoration-color: #cf9e8e; transition: color .2s, text-decoration-color .2s; }
.intro a:hover, .about-content a:hover, .prose a:hover { color: var(--accent-hover); text-decoration-color: currentColor; }
.section-label { margin-bottom: 1.25rem; padding-top: 2.25rem; color: var(--accent); font-family: var(--mono); font-size: .72rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; }

/* Evidence and project cards */
.post-list, .queue-list { list-style: none; }
.post-item { padding: 1.4rem 0; border-bottom: 1px solid var(--border); }
.post-item:first-child { border-top: 1px solid var(--border); }
.post-link { display: block; text-decoration: none; }
.post-link:hover .post-title { color: var(--accent-hover); }
.post-meta, .post-meta-top { display: flex; flex-wrap: wrap; align-items: center; gap: .45rem .75rem; margin-bottom: .45rem; }
.post-date, .reading-time, .post-reading-time { color: var(--ink-muted); font-family: var(--mono); font-size: .76rem; }
.post-tag { padding: .15rem .55rem; border: 1px solid #e4bdae; border-radius: 999px; background: var(--accent-light); color: var(--accent-hover); font-family: var(--mono); font-size: .66rem; font-weight: 500; letter-spacing: .02em; }
.post-title { margin-bottom: .35rem; color: var(--ink); font-family: var(--serif); font-size: 1.3rem; font-weight: 500; letter-spacing: -.01em; line-height: 1.35; transition: color .2s; }
.post-excerpt { color: var(--ink-secondary); font-size: .92rem; line-height: 1.65; }
.post-item.featured { position: relative; margin-inline: -1.5rem; padding: 1.5rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-raised); box-shadow: var(--shadow-subtle); }
.post-item.featured::before { position: absolute; inset: 0 auto 0 0; width: 3px; border-radius: var(--radius) 0 0 var(--radius); background: var(--accent); content: ""; }
.post-item.featured + .post-item { border-top: 0; }
.research-queue { margin-top: 2rem; padding: 1.25rem 1.5rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-raised); }
.research-queue .section-label { margin-bottom: .75rem; padding-top: 0; }
.research-publication { display: block; margin: .5rem 0 1rem; padding: 1.25rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-warm); color: var(--ink-secondary); text-decoration: none; }
.research-publication strong { display: block; margin: .25rem 0 .45rem; color: var(--ink); font-family: var(--serif); font-size: 1.2rem; font-weight: 500; line-height: 1.35; }
.publication-kicker, .publication-cta { color: var(--accent); font-family: var(--mono); font-size: .7rem; }
.publication-cta { display: block; margin-top: .7rem; text-decoration: underline; }
.research-publication:hover { border-color: var(--border-strong); }
.queue-item { padding: .75rem 0; border-top: 1px solid var(--border); }
.queue-item:first-child { border-top: 0; }
.queue-topic { font-family: var(--serif); font-size: 1.05rem; font-weight: 500; line-height: 1.35; }
.queue-condition { margin-top: .2rem; color: var(--ink-muted); font-family: var(--mono); font-size: .7rem; line-height: 1.5; }
.projects-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.project-card { padding: 1.25rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-raised); text-decoration: none; transition: border-color .2s, box-shadow .2s, transform .2s; }
.project-card:hover { border-color: var(--border-strong); box-shadow: 0 5px 18px rgba(45, 37, 31, .07); transform: translateY(-2px); }
.project-name { margin-bottom: .35rem; color: var(--ink); font-size: .95rem; font-weight: 600; }
.project-desc { color: var(--ink-secondary); font-size: .82rem; line-height: 1.55; }
.project-tech { margin-top: .65rem; color: var(--ink-muted); font-family: var(--mono); font-size: .7rem; }
.about-strip { margin-top: 3rem; padding: 2rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-warm); }
.about-strip h3 { margin-bottom: .75rem; font-family: var(--serif); font-size: 1.15rem; font-weight: 500; }
.about-strip p { color: var(--ink-secondary); font-size: .9rem; line-height: 1.7; }
.about-strip p + p { margin-top: .6rem; }
.connect-links { display: flex; flex-wrap: wrap; gap: 1.25rem; margin-top: 1rem; }
.connect-links a, .back-link { color: var(--accent); font-family: var(--mono); font-size: .78rem; text-decoration-thickness: 1px; }
.coming-soon { display: inline-block; margin-left: .5rem; padding: .15rem .5rem; border: 1px dashed var(--border-strong); border-radius: 3px; color: var(--ink-muted); font-family: var(--mono); font-size: .68rem; vertical-align: middle; }

/* About and article prose */
.about-content { max-width: 65ch; }
.about-content p { margin-bottom: 1.25rem; color: var(--ink-secondary); font-size: 1rem; line-height: 1.85; }
.about-content h2 { margin: 2rem 0 .75rem; font-family: var(--serif); font-size: 1.3rem; font-weight: 500; letter-spacing: -.01em; }
.focus-list { padding: 1rem 1.25rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-raised); list-style: none; }
.focus-list li { position: relative; padding: .3rem 0 .3rem 1.25rem; color: var(--ink-secondary); font-size: .92rem; }
.focus-list li::before { position: absolute; left: 0; color: var(--accent); content: "→"; }
.post-header { margin-bottom: 2rem; padding: 2rem 0 1.5rem; border-bottom: 1px solid var(--border); }
.post-header h1, article > .post-header h1 { margin-bottom: .75rem; }
.subtitle, .post-subtitle { max-width: 62ch; color: var(--ink-secondary); font-size: 1.05rem; line-height: 1.6; }
.prose { max-width: 68ch; }
.prose h2 { margin: 2.75rem 0 1rem; font-family: var(--serif); font-size: 1.45rem; font-weight: 500; letter-spacing: -.01em; line-height: 1.25; }
.prose h3 { margin: 2rem 0 .7rem; font-size: 1.05rem; line-height: 1.4; }
.prose p, .prose li { font-size: 1rem; line-height: 1.85; }
.prose p { margin-bottom: 1.25rem; }
.prose ul, .prose ol { margin: 0 0 1.25rem 1.4rem; }
.prose li { margin-bottom: .45rem; padding-left: .25rem; }
.prose strong { font-weight: 600; }
.prose em { font-family: var(--serif); }
.prose code { padding: .15em .4em; border-radius: 3px; background: var(--surface-warm); font-family: var(--mono); font-size: .85em; }
.prose pre { margin: 1.5rem 0; padding: 1.25rem 1.5rem; overflow-x: auto; border-radius: var(--radius); background: var(--code-bg); color: var(--code-text); font-family: var(--mono); font-size: .82rem; line-height: 1.7; }
.prose pre code { padding: 0; background: transparent; color: inherit; }
.prose img { display: block; height: auto; margin: 1.5rem 0; border: 1px solid var(--border); border-radius: var(--radius); }
.prose .img-caption, .img-caption { margin: -1rem 0 1.5rem; color: var(--ink-muted); font-family: var(--mono); font-size: .75rem; line-height: 1.5; text-align: center; }
.diagram-placeholder { margin: 2rem 0; padding: 2.5rem 2rem; border: 1px dashed var(--border-strong); border-radius: var(--radius); background: var(--surface-warm); color: var(--ink-muted); font-family: var(--mono); font-size: .82rem; text-align: center; }
.callout { margin: 1.75rem 0; padding: 1rem 1.25rem; border: 1px solid #e4c7bc; border-left: 4px solid var(--accent); border-radius: 0 var(--radius) var(--radius) 0; background: var(--accent-light); }
.callout p { margin: 0; color: var(--ink-secondary); font-size: .94rem; line-height: 1.7; }

/* Publication record */
.publication-page main { padding-top: 2rem; }
.publication-lede { margin: -.5rem 0 2rem; color: var(--ink-secondary); }
.publication-entry { padding: 1.75rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-raised); box-shadow: var(--shadow-subtle); }
.publication-entry h2 { margin: .5rem 0 .75rem; font-family: var(--serif); font-size: 1.55rem; font-weight: 500; line-height: 1.3; }
.publication-byline { color: var(--ink-secondary); }
.publication-summary { margin: 1.25rem 0; color: var(--ink-secondary); }
.topic-list, .publication-actions { display: flex; flex-wrap: wrap; gap: .55rem; list-style: none; }
.topic-list li { padding: .15rem .55rem; border: 1px solid #e4bdae; border-radius: 999px; background: var(--accent-light); color: var(--accent-hover); font-family: var(--mono); font-size: .66rem; }
.publication-actions { margin: 1.5rem 0; }
.publication-actions a { padding: .5rem .75rem; border: 1px solid var(--border-strong); border-radius: var(--radius); color: var(--accent); font-family: var(--mono); font-size: .75rem; text-decoration: none; }
.publication-actions a:hover { border-color: var(--accent); color: var(--accent-hover); }
.citation-heading { margin: 1.75rem 0 .5rem; font-family: var(--serif); font-size: 1.1rem; font-weight: 500; }
.citation-block { padding: 1rem; overflow-x: auto; border-radius: var(--radius); background: var(--code-bg); color: var(--code-text); font-family: var(--mono); font-size: .72rem; line-height: 1.65; white-space: pre-wrap; }

/* Not found */
.not-found-page main { padding-top: 2rem; text-align: center; }
.error-code { margin-bottom: .5rem; color: var(--accent); font-family: var(--mono); font-size: .78rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; }
.error-message { max-width: 52ch; margin: 0 auto; color: var(--ink-secondary); }
.error-links { display: flex; flex-wrap: wrap; justify-content: center; gap: .75rem 1.5rem; margin-top: 1.75rem; }
.error-links a { color: var(--accent); font-family: var(--mono); font-size: .78rem; text-decoration-thickness: 1px; }
.error-links a:hover { color: var(--accent-hover); }

/* Experiment results */
.table-wrap { margin: 1.75rem 0; overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-raised); box-shadow: var(--shadow-subtle); scrollbar-color: var(--border-strong) var(--surface-warm); }
.table-wrap:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; font-variant-numeric: tabular-nums; }
caption { padding: .9rem 1rem .8rem; border-bottom: 1px solid var(--border); color: var(--ink); font-family: var(--serif); font-size: 1.05rem; font-weight: 600; text-align: left; }
caption::before { display: block; margin-bottom: .2rem; color: var(--accent); content: "Evidence"; font-family: var(--mono); font-size: .64rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; }
th, td { padding: .75rem .8rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { background: var(--surface-warm); color: var(--ink-secondary); font-family: var(--mono); font-size: .7rem; font-weight: 500; letter-spacing: .02em; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #faf6f2; }
tbody tr:focus-within { background: var(--accent-light); }
td:last-child { color: var(--ink); font-weight: 500; }
.back-link { display: block; margin-top: 2rem; padding-top: 2rem; border-top: 1px solid var(--border); text-decoration: none; }
.back-link:hover { color: var(--accent-hover); text-decoration: underline; }
footer { padding: 2rem 1.5rem; border-top: 1px solid var(--border); color: var(--ink-muted); font-family: var(--mono); font-size: .7rem; text-align: center; }

@media (max-width: 640px) {
    header { padding: 2rem 1.25rem 1.5rem; }
    main, article { padding: 0 1.25rem 3rem; }
    .about-page main, .publication-page main, .not-found-page main { padding-top: 1.5rem; }
    .publication-entry { padding: 1.25rem; }
    .site-name { font-size: 1.35rem; }
    h1 { font-size: 1.7rem; }
    .post-title { font-size: 1.15rem; }
    .projects-grid { grid-template-columns: 1fr; }
    .post-item.featured { margin-inline: -1.25rem; padding: 1.25rem; }
    .about-strip { padding: 1.5rem; }
    th, td { min-width: 8rem; padding: .65rem; }
}

@media (max-width: 400px) {
    .avatar { width: 52px; height: 52px; font-size: 1.2rem; }
    .site-identity { gap: .9rem; }
    nav { column-gap: 1rem; }
    .post-meta, .post-meta-top { align-items: flex-start; }
}

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

@media (forced-colors: active) {
    .avatar, .post-item.featured::before { forced-color-adjust: auto; }
    .post-tag, .callout, .post-item.featured, .project-card, .research-queue, .table-wrap { border-color: CanvasText; }
}