/* ==========================================================================
   read.css: the "reading" dialect for About, Articles and a single article.
   Paper, ink and one vermilion accent like the rest of the
   site, but built for long text: a serif body at a comfortable measure, hairline
   rules, mono for dates and labels, no cards.
   ========================================================================== */

:root { --serif: "IBM Plex Serif", Georgia, "Times New Roman", serif; }
.page-read { background: var(--paper); }

/* ---------- Page head ---------- */
.read-head { padding: clamp(48px, 8vw, 96px) 0 clamp(28px, 4vw, 48px); }
.read-head .label { display: block; margin-bottom: 14px; color: var(--accent-ink); }
.read-head h1 { max-width: 16ch; font-size: clamp(2.6rem, 6vw, 4.8rem); line-height: 1; letter-spacing: -0.045em; text-wrap: balance; }
.read-sub { max-width: 46ch; margin-top: 18px; color: var(--ink-2); font: 400 clamp(1.1rem, 1.8vw, 1.35rem)/1.55 var(--serif); }

/* ---------- Prose: everything Markdown produces ---------- */
.prose { max-width: 680px; color: var(--ink); font: 400 19px/1.72 var(--serif); overflow-wrap: break-word; }
.prose > * + * { margin-top: 1.15em; }
.prose h2, .prose h3, .prose h4 { position: relative; font-family: var(--sans); font-weight: 600; line-height: 1.2; letter-spacing: -0.02em; text-wrap: balance; scroll-margin-top: calc(var(--strip-h) + 24px); }
.prose h2 { margin-top: 2.5em; font-size: 1.75rem; }
.prose h3 { margin-top: 2.1em; font-size: 1.3rem; }
.prose h4 { margin-top: 1.9em; font-size: 1.05rem; }
.prose h2 + *, .prose h3 + *, .prose h4 + * { margin-top: 0.65em; }
.prose > :first-child { margin-top: 0; }
.prose .anchor { position: absolute; left: -1.1em; top: 0; color: var(--ink-3); font-weight: 400; text-decoration: none; opacity: 0; transition: opacity 0.15s; }
.prose h2:hover .anchor, .prose h3:hover .anchor, .prose h4:hover .anchor { opacity: 1; }
.prose a { color: inherit; text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.prose a:hover { color: var(--accent-ink); }
.prose strong { font-weight: 600; }
.prose del { color: var(--ink-3); }
.prose ul, .prose ol { padding-left: 1.45em; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: 0.4em; }
.prose li::marker { color: var(--accent-ink); }
.prose li > ul, .prose li > ol { margin-top: 0.4em; }
.prose li.task { margin-left: -1.45em; list-style: none; }
.prose .check { position: relative; display: inline-block; width: 0.8em; height: 0.8em; margin-right: 0.55em; border: 2px solid var(--ink); vertical-align: -0.05em; }
.prose .check.done { background: var(--ink); }
.prose .check.done::after { content: ""; position: absolute; left: 0.12em; top: 0; width: 0.22em; height: 0.42em; border: solid var(--paper); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.prose blockquote { padding: 2px 0 2px 22px; border-left: 4px solid var(--ink); color: var(--ink-2); font-style: italic; }
.prose blockquote > * + * { margin-top: 0.8em; }
.prose hr { height: 0; margin: 2.6em 0; border: 0; border-top: 1px solid var(--line-2); }
.prose code { padding: 0.1em 0.38em; border-radius: 2px; background: var(--paper-2); font: 500 0.86em var(--mono); }
.prose pre.code { position: relative; margin: 1.7em 0; padding: 18px 20px; overflow-x: auto; border-radius: var(--r); background: var(--t-bg); color: var(--t-fg); font: 400 14px/1.65 var(--mono); tab-size: 2; }
.prose pre.code code { padding: 0; background: none; color: inherit; font: inherit; white-space: pre; }
.prose pre.code[data-lang]::before { content: attr(data-lang); position: absolute; top: 6px; right: 12px; color: var(--t-dim); font: 500 11px/1 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; }
.prose figure { margin: 2em 0; }
.prose img { width: 100%; height: auto; border: 1px solid var(--line); background: var(--paper-2); }
.prose p > img { width: auto; max-width: 100%; vertical-align: middle; }
.prose figcaption { margin-top: 8px; color: var(--ink-3); font: 12.5px/1.5 var(--mono); }
.prose .table-wrap { margin: 1.7em 0; overflow-x: auto; }
/* A table fits the column and its cells wrap. (A fixed minimum width made even a table of two short columns scroll sideways on a phone and hid the last column; the box above still scrolls if something cannot shrink.) */
.prose table { width: 100%; border-top: 1px solid var(--ink); font: 400 16px/1.5 var(--sans); }
.prose th, .prose td { padding: 10px 16px 10px 0; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose th { color: var(--ink-3); font: 500 12px/1.6 var(--mono); }
.prose .al-center { text-align: center; } .prose .al-right { text-align: right; }
.prose.lede-first > p:first-child { color: var(--ink); font-size: 1.32em; line-height: 1.55; }

/* code colors (same names as the terminal on the software page) */
.prose .tk-c { color: #8b949e; font-style: italic; } .prose .tk-k { color: #ff7b72; } .prose .tk-s { color: #a5d6ff; } .prose .tk-n { color: #79c0ff; }
.prose .tk-f { color: #d2a8ff; } .prose .tk-p { color: #ffa657; } .prose .tk-h { color: #79c0ff; font-weight: 600; } .prose .tk-b { color: var(--accent-light); }
.prose .tk-ok { color: #3fb950; } .prose .tk-warn { color: #e3b341; }

/* ---------- Table of contents (a <details> so it can fold on a phone) ---------- */
.toc { border-top: 1px solid var(--ink); padding-top: 12px; }
.toc summary { list-style: none; cursor: pointer; color: var(--ink-3); font: 500 12px/1.4 var(--mono); letter-spacing: 0.02em; }
.toc summary::-webkit-details-marker { display: none; }
.toc summary::after { content: "+"; float: right; font-size: 16px; line-height: 1; }
.toc[open] summary::after { content: "\2212"; }
.toc ol { display: grid; gap: 2px; margin-top: 10px; }
.toc a { display: block; padding: 5px 0 5px 12px; border-left: 2px solid var(--line); color: var(--ink-2); font: 400 14.5px/1.35 var(--sans); }
.toc a:hover { color: var(--ink); border-left-color: var(--ink-3); }
.toc a[aria-current] { border-left-color: var(--accent); color: var(--ink); font-weight: 500; }
.toc .l3 a { padding-left: 26px; font-size: 13.5px; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 36px; padding-bottom: clamp(48px, 7vw, 88px); }
.about-side { display: grid; gap: 28px; align-content: start; min-width: 0; }
.about-side .portrait { width: min(100%, 260px); margin: 0; border: 1px solid var(--ink); background: var(--paper-2); }
.about-side .portrait img { display: block; width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: cover; }
.facts-list { border-top: 1px solid var(--ink); }
.facts-list div { display: grid; grid-template-columns: 78px minmax(0, 1fr); gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.facts-list dt { padding-top: 2px; color: var(--ink-3); font: 500 12px/1.6 var(--mono); }
.side-links a { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-weight: 500; }
.side-links a:hover { color: var(--accent-ink); }
.side-links a span { color: var(--ink-3); font: 12px/1 var(--mono); }
.side-links { border-top: 1px solid var(--ink); }
.about-main { min-width: 0; }
.load-note { color: var(--ink-3); font: 14px/1.5 var(--mono); }
.notice { max-width: 60ch; padding: 16px 18px; border: 1px dashed var(--line-2); color: var(--ink-2); font: 15px/1.6 var(--sans); }
.notice code { padding: 0.1em 0.38em; background: var(--paper-2); font: 500 0.9em var(--mono); }

/* ---------- Article list ---------- */
.list-section { padding-bottom: clamp(48px, 7vw, 96px); }
.demo-note { margin: 24px 0 0; max-width: none; border-style: solid; border-color: var(--accent); }
.list-tools { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; margin-bottom: 22px; }
.tag-filter { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-btn { height: 34px; padding: 0 12px; border: 1px solid var(--line-2); border-radius: var(--r); font: 500 13px/1 var(--mono); transition: background-color 0.15s, color 0.15s, border-color 0.15s; }
.tag-btn:hover { border-color: var(--ink); }
.tag-btn[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.list-count { color: var(--ink-3); font: 12.5px/1 var(--mono); }
.post-list { border-top: 1px solid var(--ink); }
.post { position: relative; display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 8px 32px; padding: 28px 0 30px; border-bottom: 1px solid var(--line); }
.post time { padding-top: 6px; color: var(--ink-3); font: 500 13px/1.6 var(--mono); }
.post h2 { max-width: 30ch; font-size: clamp(1.45rem, 2.5vw, 2rem); line-height: 1.15; letter-spacing: -0.028em; text-wrap: balance; }
.post h2 a::after { content: ""; position: absolute; inset: 0; }
.post:hover h2 a, .post:focus-within h2 a { text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 5px; }
.post h2 a:focus-visible { outline-offset: 6px; }
.post p { max-width: 62ch; margin-top: 10px; color: var(--ink-2); font: 400 17px/1.62 var(--serif); }
.post .meta { margin-top: 12px; color: var(--ink-3); font: 12.5px/1.5 var(--mono); }
.post .meta a { position: relative; z-index: 1; text-decoration: underline; text-underline-offset: 3px; }   /* above the card's stretched title link */
.post .meta a:hover { color: var(--accent-ink); }
.post.skeleton .bar { height: 14px; background: var(--paper-2); }
.post.skeleton .bar + .bar { margin-top: 12px; width: 70%; }
.state { max-width: 58ch; padding: 40px 0 8px; }
.state h1 { margin-bottom: 12px; font-size: clamp(1.9rem, 4vw, 2.6rem); letter-spacing: -0.03em; }
.state h2 { margin-bottom: 10px; font-size: 1.6rem; }
.state p { color: var(--ink-2); font: 400 17px/1.6 var(--serif); }
.state .btn { margin-top: 18px; }
.state .dev { margin-top: 20px; }
.compact .post { padding: 20px 0 22px; }
.compact .post h2 { font-size: 1.3rem; }

/* ---------- One article ---------- */
.article-main { display: grid; grid-template-columns: minmax(0, 1fr); padding-bottom: clamp(48px, 7vw, 88px); }
.crumb { margin: clamp(28px, 4vw, 48px) 0 26px; font: 500 13px/1 var(--mono); }
.crumb a:hover { color: var(--accent-ink); }
.article-head { max-width: 760px; margin-bottom: clamp(24px, 4vw, 40px); }
.article-head .meta { color: var(--ink-3); font: 500 13px/1.6 var(--mono); }
.article-head .meta a { text-decoration: underline; text-underline-offset: 3px; }
.article-head .meta a:hover { color: var(--accent-ink); }
.article-head h1 { margin-top: 12px; font-size: clamp(2rem, 4.2vw, 3.2rem); line-height: 1.02; letter-spacing: -0.042em; text-wrap: balance; }
.standfirst { max-width: 56ch; margin-top: 20px; color: var(--ink-2); font: 400 clamp(1.15rem, 2vw, 1.4rem)/1.5 var(--serif); }
.article-head .tags { margin-top: 20px; }
.article-main .toc { margin: 0 0 32px; max-width: 680px; }
.article-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; max-width: 680px; margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--ink); }
.article-foot .btn { height: 38px; padding: 0 14px; font-size: 14px; }
.byline { max-width: 680px; margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--line); }
.byline h2 { margin-bottom: 8px; color: var(--ink-3); font: 500 12px/1.4 var(--mono); letter-spacing: 0.04em; text-transform: uppercase; }
.byline p { color: var(--ink-2); font: 400 1rem/1.6 var(--serif); }
.more { max-width: 760px; margin-top: clamp(48px, 7vw, 80px); }
.more h2 { margin-bottom: 14px; font-size: 1.15rem; }

/* ---------- Bottom of a reading page ---------- */
.read-cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px 32px; padding: 26px 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); margin-bottom: clamp(40px, 6vw, 72px); }
.read-cta p { max-width: 46ch; color: var(--ink-2); font: 400 17px/1.55 var(--serif); }
.read-cta .actions { display: flex; flex-wrap: wrap; gap: 10px; }
.page-read .foot { border-top: 1px solid var(--ink); padding: 26px 0 40px; }

/* ---------- Responsive ---------- */
@media (min-width: 980px) {
  .toc summary { cursor: default; }
  .toc summary::after { display: none; }
  .about-grid { grid-template-columns: 260px minmax(0, 680px); gap: 80px; align-items: start; }
  .about-side { position: sticky; top: calc(var(--strip-h) + 28px); max-height: calc(100vh - var(--strip-h) - 48px); overflow-y: auto; scrollbar-width: thin; }
}
@media (min-width: 1180px) {
  .article-main { grid-template-columns: 220px minmax(0, 680px); column-gap: 64px; justify-content: center; }
  .article-main > .crumb, .article-main > .article-head, .article-main > .prose, .article-main > .article-foot, .article-main > .byline, .article-main > .more { grid-column: 2; }
  .article-main > .toc { grid-column: 1; grid-row: 3; position: sticky; top: calc(var(--strip-h) + 28px); align-self: start; margin: 0; }
  .article-main > .prose { grid-row: 3; }
}
@media (max-width: 760px) {
  .prose { font-size: 17.5px; }
  .prose .anchor { display: none; }
  .post { grid-template-columns: minmax(0, 1fr); gap: 4px; padding: 22px 0 24px; }
  .post time { padding-top: 0; }
  .prose h2 { font-size: 1.5rem; }
}

/* The candidate summary (agents.html): plain sections and a fact sheet, all readable with no script */
.agents { padding-bottom: clamp(48px, 7vw, 96px); }
.agents .prose section + section { margin-top: 2.2em; }
.agents .prose h2 { margin-top: 0; }
.agents .prose section > * + * { margin-top: 1.1em; }
.agents .prose section > h2 + * { margin-top: 0.65em; }
.agents .prose section > h3 { margin-top: 1.7em; }
.agents .prose section > h3 + * { margin-top: 0.6em; }
.agents .prose section > .job + .job { margin-top: 0; }
.agents .prose h3 { margin-top: 1.5em; font-size: 1.1rem; }
.sheet { border-top: 1px solid var(--ink); }
.sheet div { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 4px 20px; padding: 11px 0; border-bottom: 1px solid var(--line); font: 400 16px/1.6 var(--sans); }
.sheet dt { padding-top: 2px; color: var(--ink-3); font: 500 13px/1.6 var(--mono); }
.sheet dd { margin: 0; overflow-wrap: anywhere; }
.job { padding: 14px 0 16px; border-bottom: 1px solid var(--line); }
.job:first-of-type { border-top: 1px solid var(--ink); }
.agents .prose .job h3 { margin: 0; font-size: 1.1rem; }
.job .when { margin-top: 4px; color: var(--ink-3); font: 500 13px/1.6 var(--mono); }
.job p:last-child { margin-top: 8px; }
.agent-note { padding: 18px 20px; border: 1px solid var(--ink); background: var(--white); }
.agent-note p:last-child { margin-bottom: 0; }
.small-print { margin-top: 2.4em; color: var(--ink-3); font: 400 14px/1.6 var(--sans); }
@media (max-width: 560px) { .sheet div { grid-template-columns: minmax(0, 1fr); } }

/* The 404 page: the site as a short directory listing, then a game */
.post .where { padding-top: 6px; color: var(--ink-3); font: 500 13px/1.6 var(--mono); overflow-wrap: anywhere; }
.lost-title { margin-bottom: 14px; font-size: 1.3rem; letter-spacing: -0.02em; }
.lost-game { padding-block: clamp(40px, 6vw, 72px) clamp(48px, 8vw, 96px); }
.lost-game .keepie { max-width: 560px; }
.lost-game p { max-width: 52ch; margin-bottom: 18px; color: var(--ink-2); font: 400 17px/1.6 var(--serif); }
@media (max-width: 760px) { .post .where { padding-top: 0; } }

/* "Download my CV": full width under the facts in the side column */
.cv-btn { width: 100%; justify-content: space-between; margin: 18px 0 4px; }
.cv-btn > span:first-child { display: inline-flex; align-items: center; gap: 10px; }
.cv-btn .cv-tag { font: 500 11px/1 var(--mono); letter-spacing: 0.06em; opacity: 0.72; }