/* =========================================================
   Joselu Cabrera Guillermo — personal site
   Plain HTML + CSS + a little JS. No build step.

   The look, in one paragraph:
   grey "garúa" paper (Lima's winter fog) instead of cream;
   indigo-black ink with cochineal carmine as the one accent;
   IM Fell (17th-century letterpress, the era of Fludd and Guaman Poma)
   for titles, Alegreya (Huerta Tipográfica, Argentina) for reading;
   the dark-brown band from Joselu's own event posters as the footer.
   The memorable thing is the arithmetic triangle on the home page:
   everything else stays quiet.
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  --paper: #e9ebe6;        /* garúa */
  --paper-2: #dfe2dc;
  --ink: #1b2036;          /* indigo-black */
  --ink-2: #4b5165;
  --faint: #7a808d;        /* the unvisited part of the triangle (3.3:1 on paper) */
  --rule: #c3c7c0;
  --carmine: #a3173f;      /* cochineal */
  --indigo: #2d3f8f;       /* links */
  --link: var(--indigo);
  --link-hover: var(--carmine);
  --cacao: #3b2119;        /* the band at the foot of Joselu's posters */
  --cacao-ink: #ecdfd2;
  --cacao-ink-2: #c4aea0;

  /* papers that black-and-white engravings are "printed" on */
  --tint-cochineal: #eac4cc;
  --tint-indigo: #c6cde6;
  --tint-ochre: #ead6a5;
  --tint-verdigris: #bfdad2;

  --display: "IM Fell French Canon", "IM Fell Double Pica", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --head: "IM Fell Double Pica", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --text: "Alegreya", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --type: "Courier Prime", "Courier New", Courier, monospace;

  --measure: 36em;
  --wrap: 1180px;
  --gutter: clamp(18px, 4vw, 48px);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #141826; --paper-2: #1c2133; --ink: #e8e4db; --ink-2: #a9adb9; --faint: #666d82;
    --rule: #30364a; --carmine: #f0869e; --indigo: #aab8f5; --link: #aab8f5; --link-hover: #f6a9ba;
    --cacao: #25150f; --cacao-ink: #e4d6c8; --cacao-ink-2: #b19c8e;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #141826; --paper-2: #1c2133; --ink: #e8e4db; --ink-2: #a9adb9; --faint: #666d82;
  --rule: #30364a; --carmine: #f0869e; --indigo: #aab8f5; --link: #aab8f5; --link-hover: #f6a9ba;
  --cacao: #25150f; --cacao-ink: #e4d6c8; --cacao-ink-2: #b19c8e;
  color-scheme: dark;
}

/* ---------- 2. Bilingual switch ----------
   Every piece of text exists twice: lang="en" and lang="es".
   The <html data-lang="…"> attribute decides which one shows. */
html[data-lang="en"] body [lang="es"],
html[data-lang="es"] body [lang="en"] { display: none !important; }
[hidden] { display: none !important; }

/* ---------- 3. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--text);
  font-size: clamp(1.125rem, 1.06rem + 0.25vw, 1.25rem);
  line-height: 1.55;
  font-variant-numeric: oldstyle-nums proportional-nums;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; font-size: inherit; touch-action: manipulation; }
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 0.16em; }
@media (hover: hover) and (pointer: fine) { a:hover { color: var(--link-hover); } }
:focus-visible { outline: 2px solid var(--carmine); outline-offset: 3px; }

h1, h2, h3 { font-weight: 400; font-synthesis: none; margin: 0 0 0.5em; }
h1 { font: 400 clamp(2.6rem, 1.9rem + 3vw, 4.4rem) / 1 var(--display); letter-spacing: -0.005em; }
h2 { font: 400 clamp(1.75rem, 1.5rem + 0.9vw, 2.35rem) / 1.08 var(--head); }
h3 { font: 400 1.45rem / 1.15 var(--head); }
p { margin: 0 0 1em; }
/* Reading text is justified; hyphenation keeps the spacing even in narrow columns.
   Headings, menus, buttons and the footer stay ranged left. */
main p, main li, main figcaption, main dd {
  text-align: justify; -webkit-hyphens: auto; hyphens: auto; hyphenate-limit-chars: 6 2 2;
  text-wrap: pretty;
}
main .go li, main .links li, main .lb-top p, main .odds { text-align: left; -webkit-hyphens: manual; hyphens: manual; }
main h1, main h2, main h3, main summary { text-align: left; -webkit-hyphens: manual; hyphens: manual; }
em, i { font-style: italic; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.measure { max-width: var(--measure); }
.muted { color: var(--ink-2); }
.label { font-style: italic; color: var(--ink-2); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip {
  position: absolute; left: -999px; top: 8px; z-index: 10;
  background: var(--ink); color: var(--paper); padding: 8px 12px;
}
.skip:focus { left: 8px; }

/* ---------- 4. Header ---------- */
.site-header .wrap {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: 10px 36px; padding-top: 26px; padding-bottom: 14px;
}
.brand { font: 400 1.5rem / 1.1 var(--head); color: var(--ink); text-decoration: none; }
.nav { display: flex; flex-wrap: wrap; gap: 2px 26px; }
.nav a {
  color: var(--ink); text-decoration: none; font-size: 1.05em;
  display: inline-block; padding: 6px 0; text-underline-offset: 0.32em;
}
.nav a[aria-current="page"] { color: var(--carmine); text-decoration: underline; text-decoration-thickness: 2px; }
@media (hover: hover) and (pointer: fine) { .nav a:hover { color: var(--carmine); } }
.tools { display: flex; align-items: center; gap: 14px; }
.seg { display: inline-flex; align-items: baseline; gap: 0; }
.seg button {
  background: none; border: 0; padding: 6px 2px; cursor: pointer; font-size: 0.98em;
  color: var(--link); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.16em;
}
.seg button + button::before { content: "/"; color: var(--ink-2); display: inline-block; margin: 0 0.4em; text-decoration: none; }
.seg button[aria-pressed="true"] { color: var(--ink); text-decoration: none; cursor: default; }
.icon-btn {
  display: inline-grid; place-items: center; width: 36px; height: 36px; padding: 0;
  background: none; border: 0; color: var(--ink); cursor: pointer;
}
@media (hover: hover) and (pointer: fine) {
  .seg button[aria-pressed="false"]:hover, .icon-btn:hover { color: var(--carmine); }
}

/* ---------- 5. Sections, buttons ---------- */
main { display: block; }
section { padding-top: clamp(40px, 6vw, 84px); padding-bottom: clamp(24px, 3vw, 40px); }
.page-head { padding-top: clamp(44px, 7vw, 96px); padding-bottom: clamp(12px, 2vw, 24px); }
.page-head p { max-width: var(--measure); color: var(--ink-2); font-size: 1.08em; }

.btn {
  display: inline-block; font: 500 1rem / 1.2 var(--text); text-decoration: none; cursor: pointer;
  padding: 10px 18px 11px; border: 1.5px solid var(--ink); background: none; color: var(--ink);
}
.btn.primary { background: var(--ink); color: var(--paper); }
.btn, .controls .again { -webkit-tap-highlight-color: transparent; transition: transform 120ms ease-out; }
.btn:active, .controls .again:active { transform: scale(0.97); }
@media (hover: hover) and (pointer: fine) {
  .btn:hover { border-color: var(--carmine); color: var(--carmine); }
  .btn.primary:hover { background: var(--carmine); border-color: var(--carmine); color: var(--paper); }
}
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

/* ---------- 6. Plates (historical images) ---------- */
.plate { margin: 0; }
.plate .mat { background: var(--paper-2); padding: clamp(12px, 2vw, 22px); }
.plate[data-tint] .mat { background: var(--tint, var(--paper-2)); }
.plate[data-tint] img { mix-blend-mode: multiply; filter: grayscale(1) contrast(1.08); }
.plate[data-tint][data-aged] img { filter: grayscale(1) brightness(1.2) contrast(1.45); }
.plate[data-tint="cochineal"] { --tint: var(--tint-cochineal); }
.plate[data-tint="indigo"]    { --tint: var(--tint-indigo); }
.plate[data-tint="ochre"]     { --tint: var(--tint-ochre); }
.plate[data-tint="verdigris"] { --tint: var(--tint-verdigris); }
.plate img { margin: 0 auto; max-height: 560px; width: auto; }
.plate figcaption { margin-top: 10px; font-size: 0.9rem; line-height: 1.45; color: var(--ink-2); }
.plate figcaption a { color: inherit; }

/* ---------- 7. Home ---------- */
.hero {
  display: grid; grid-template-columns: 1fr; gap: clamp(40px, 6vw, 88px); align-items: start;
  padding-top: clamp(36px, 6vw, 88px);
}
@media (min-width: 900px) { .hero { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); } }
.hero h1 { font-size: clamp(3rem, 1.6rem + 5vw, 5.6rem); line-height: 0.94; margin-bottom: 0.32em; }
.role { font-style: italic; font-size: 1.22em; color: var(--ink-2); margin-bottom: 1.3em; }
.lede { font-size: 1.08em; line-height: 1.5; max-width: 32em; }
.hero .lede + p { max-width: 34em; }
.go { list-style: none; padding: 0; margin: 1.5em 0 0; display: flex; flex-wrap: wrap; gap: 6px 28px; font-size: 1.1em; }
.go a { color: var(--ink); text-decoration-color: var(--carmine); text-decoration-thickness: 2px; text-underline-offset: 0.26em; }
@media (hover: hover) and (pointer: fine) { .go a:hover { color: var(--carmine); } }

/* The arithmetic triangle: the one loud thing on the site */
.tri { margin: 0; container-type: inline-size; }
.tri-intro { font-size: 1.02em; margin: 0 0 14px; }
.tri pre {
  margin: 0 0 18px; white-space: pre; overflow: hidden;
  font-family: var(--type); font-weight: 400; line-height: 1.2;
  font-size: 12px;
  font-size: min(15px, calc(100cqi / var(--cols, 45) / 0.6));
  color: var(--faint); font-variant-numeric: normal;
}
.tri pre .p { color: var(--carmine); font-weight: 700; }
.tri pre .cur { color: var(--paper); background: var(--carmine); font-weight: 700; }
.tri pre .new { animation: ink-in 260ms cubic-bezier(0.23, 1, 0.32, 1); }
@keyframes ink-in { from { color: var(--faint); background-color: transparent; } }
.controls { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.controls .btn { min-width: 6.5em; text-align: center; }
.controls .again {
  background: none; border: 0; padding: 10px 4px; cursor: pointer; color: var(--ink-2);
  text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.18em;
}
@media (hover: hover) and (pointer: fine) { .controls .again:hover { color: var(--carmine); } }
.seq { margin-left: auto; font: 400 0.95rem / 1 var(--type); letter-spacing: 0.14em; color: var(--ink-2); white-space: nowrap; }
.odds { font-size: 1.12em; margin: 20px 0 0; }
.odds .frac { font: 400 2.25rem / 1 var(--head); color: var(--carmine); font-variant-numeric: lining-nums; margin-left: 0.15em; }
.odds .pct { color: var(--ink-2); font-size: 0.9em; margin-left: 0.3em; font-variant-numeric: lining-nums tabular-nums; }
.tri figcaption {
  margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--rule);
  font-size: 0.95rem; line-height: 1.45; color: var(--ink-2); max-width: 36em;
}
.tri figcaption p { margin: 0 0 0.5em; }
.tri .stop { font-style: italic; }

.areas { list-style: none; padding: 0; margin: 0; columns: 2 18em; column-gap: 48px; }
.areas li { break-inside: avoid; padding: 10px 0 12px; border-top: 1px solid var(--rule); }
.areas a { font: 400 1.35rem / 1.2 var(--head); color: var(--ink); text-decoration: none; }
.areas span { display: block; color: var(--ink-2); font-size: 0.95em; margin-top: 2px; }
@media (hover: hover) and (pointer: fine) { .areas a:hover { color: var(--carmine); } }

.two-col { display: grid; gap: 48px; grid-template-columns: 1fr; }
@media (min-width: 900px) { .two-col { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 72px; } }
.news { list-style: none; padding: 0; margin: 0; }
.news li { display: grid; grid-template-columns: 5.8rem 1fr; gap: 14px; padding: 11px 0 12px; border-top: 1px solid var(--rule); }
.news time { font-style: italic; color: var(--ink-2); }
@media (max-width: 520px) { .news li { grid-template-columns: 1fr; gap: 0; } }

.byline { display: flex; gap: 18px; align-items: center; margin-bottom: 20px; }
.byline p { margin: 0; color: var(--ink-2); line-height: 1.4; }
.portrait {
  position: relative; width: 112px; height: 112px; flex: none; overflow: hidden; border-radius: 50%;
  background: var(--tint-ochre); display: grid; place-items: center; font: 1.6rem var(--head); color: #3b2a10;
}
.portrait img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.links { list-style: none; padding: 0; margin: 0; }
.links li { display: flex; justify-content: space-between; align-items: baseline; gap: 14px; padding: 9px 0; border-top: 1px solid var(--rule); }
.links a { overflow-wrap: anywhere; text-align: right; font-variant-numeric: lining-nums; }

/* Every tile keeps its own proportions and all four share one height:
   one row on wide screens; on phones a row you swipe through. */
.strip { display: flex; gap: 14px; align-items: flex-start; margin-top: 22px; }
.strip a { flex: var(--ar, 0.8) 1 0; min-width: 0; display: block; }
.strip img { width: 100%; height: auto; }
@media (max-width: 640px) {
  .strip {
    gap: 10px; overflow-x: auto; scroll-snap-type: x mandatory; overscroll-behavior-x: contain;
    margin-inline: calc(-1 * var(--gutter)); padding-inline: var(--gutter); scroll-padding-inline: var(--gutter);
    scrollbar-width: none;
  }
  .strip::-webkit-scrollbar { display: none; }
  .strip a { flex: none; height: min(62vw, 300px); aspect-ratio: var(--ar, 0.8); scroll-snap-align: start; }
  .strip img { width: 100%; height: 100%; object-fit: contain; }
}
.section-lede { max-width: var(--measure); }

/* ---------- 8. Research ---------- */
.area {
  display: grid; gap: clamp(22px, 4vw, 60px); grid-template-columns: 1fr; align-items: start;
  padding: clamp(32px, 5vw, 60px) 0; border-top: 1px solid var(--rule);
}
.area:first-of-type { border-top: 0; }
@media (min-width: 900px) {
  .area { grid-template-columns: 300px minmax(0, 1fr); }
  .area:nth-of-type(even) { grid-template-columns: minmax(0, 1fr) 300px; }
  .area:nth-of-type(even) .plate { order: 2; }
}
.area .plate img { max-height: 340px; }
.keywords { font-style: italic; color: var(--ink-2); font-size: 0.95em; }

.cards { display: grid; grid-template-columns: 1fr; gap: 0 56px; }
@media (min-width: 800px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.card { padding: 16px 0 20px; border-top: 1px solid var(--rule); }
.card h3 { margin: 4px 0 0.35em; }
.card p { margin: 0; color: var(--ink-2); }
.status { font-style: italic; color: var(--carmine); font-size: 0.95em; }

/* Toolkit entries: status line, title, short description, optional "More about this project" */
.projects { list-style: none; padding: 0; margin: 0; max-width: 40em; }
.project { padding: 16px 0 22px; border-top: 1px solid var(--rule); }
.project h3 { margin: 4px 0 0.4em; }
.project p { margin: 0 0 0.7em; }
details.more summary {
  display: inline-block; cursor: pointer; list-style: none; padding: 4px 0; color: var(--link);
  text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.16em;
}
details.more summary::-webkit-details-marker { display: none; }
details.more summary::after { content: " +"; }
details.more[open] summary::after { content: " \2212"; }
details.more[open] summary { margin-bottom: 8px; }
@media (hover: hover) and (pointer: fine) { details.more summary:hover { color: var(--link-hover); } }
@media (pointer: coarse) { details.more summary { min-height: 44px; display: inline-flex; align-items: center; } }
.entries { list-style: none; padding: 0; margin: 0; }
.entries li { display: grid; grid-template-columns: 7rem 1fr; gap: 14px; padding: 12px 0; border-top: 1px solid var(--rule); }
.entries .when { font-style: italic; color: var(--ink-2); }
@media (max-width: 520px) { .entries li { grid-template-columns: 1fr; gap: 2px; } }
.talk { font-weight: 500; }
.todo { background: var(--tint-ochre); color: #3b2a10; padding: 0 4px; }

/* ---------- Contents lists on long pages (Research, the attention model, course and group pages) ----------
   Set like the contents page of an old book: an italic title, plain entries, and on Research
   a dotted leader after each area. Sub-entries are run in on one line. */
:where(main [id]) { scroll-margin-top: 18px; }
.toc { margin: 30px 0 0; max-width: 30em; }
.toc-title { font: italic 400 1.3rem / 1.2 var(--head); color: var(--ink); margin: 0 0 6px; }
.toc ol { list-style: none; padding: 0; margin: 0; }
main .toc li { text-align: left; -webkit-hyphens: manual; hyphens: manual; }
.toc > ol > li { padding: 3px 0; }
.toc > ol > li.toc-gap { margin-top: 12px; }
.toc a { color: var(--link); text-decoration: none; }
.toc > ol > li > a { display: flex; align-items: baseline; }
.toc-lead { flex: 1 1 1.5em; min-width: 1.5em; margin: 0 0 0 0.45em; border-bottom: 2px dotted var(--faint); transform: translateY(-0.28em); }
.toc .toc-sub { margin: 1px 0 2px 1em; font-size: 0.92em; line-height: 1.45; }
.toc .toc-sub li { display: inline; }
.toc .toc-sub li:not(:last-child)::after { content: ";"; color: var(--ink-2); margin-right: 0.3em; }
.toc .toc-weeks { display: flex; align-items: baseline; }
.toc .toc-weeks ol { text-wrap: balance; }
.toc .toc-weeks li:not(:last-child)::after { content: none; }
.toc .toc-weeks a { display: inline-block; min-width: 1.5em; padding: 2px 0; text-align: center; }
.toc-sub-label { color: var(--ink-2); font-style: italic; margin-right: 0.35em; }
@media (hover: hover) and (pointer: fine) {
  .toc a:hover { color: var(--link-hover); }
  .toc a:hover .toc-t, .toc .toc-sub a:hover { text-decoration: underline; text-decoration-thickness: 1px; }
}
@media (pointer: coarse) { .toc > ol > li { padding: 5px 0; } .toc .toc-weeks a { padding: 6px 0; } }
@media print { .toc { display: none; } }

/* ---------- Course and reading-group pages (groups/, courses/, templates/course-or-group.html) ---------- */
.crumb { margin: 0 0 10px; font-style: italic; font-size: 0.98em; }
.crumb a { color: var(--ink-2); }
@media (hover: hover) and (pointer: fine) { .crumb a:hover { color: var(--link-hover); } }
.facts { margin: 26px 0 0; max-width: var(--measure); }
.facts > div { display: grid; grid-template-columns: 8.5rem minmax(0, 1fr); align-items: baseline; padding: 9px 0; border-top: 1px solid var(--rule); }
.facts dt { font-style: italic; color: var(--ink-2); padding-right: 14px; }
.facts dd { margin: 0; text-align: left; }
.poster { margin: 0; }
.poster img { display: block; width: auto; max-width: 100%; max-height: 560px; margin: 0 auto; box-shadow: 0 1px 2px rgb(27 32 54 / 0.18), 0 10px 28px -12px rgb(27 32 54 / 0.35); }
.poster figcaption { margin-top: 14px; font-size: 0.9rem; line-height: 1.45; color: var(--ink-2); text-align: center; }
.poster figcaption a { color: inherit; }
.rules, .weeks, #materials .entries { max-width: 50em; }
.rules { margin: 18px 0 26px; }
.rules > div { display: grid; grid-template-columns: 11rem minmax(0, 1fr); column-gap: 18px; align-items: baseline; padding: 12px 0; border-top: 1px solid var(--rule); }
.rules dt { font: 400 1.22rem / 1.25 var(--head); }
.rules dd { margin: 0; }
.weeks { list-style: none; padding: 0; margin: 18px 0 0; }
.week { display: grid; grid-template-columns: 7rem minmax(0, 1fr); column-gap: 14px; align-items: start; padding: 18px 0 20px; border-top: 1px solid var(--rule); }
.week > * { grid-column: 2; }
.week > .week-n { grid-column: 1; grid-row: 1; font-style: italic; color: var(--ink-2); }
.week > .week-n, .week > h3 { align-self: baseline; }
.week h3 { margin: 0 0 0.35em; }
.week p { margin: 0 0 0.6em; }
.readings { list-style: none; padding: 0; margin: 0; }
.readings.refs { max-width: var(--measure); margin: 0 0 1em; }
main .readings li { padding-left: 1.4em; text-indent: -1.4em; margin: 0 0 0.3em; text-align: left; -webkit-hyphens: none; hyphens: none; }
@media (max-width: 620px) {
  .facts > div { grid-template-columns: 7rem minmax(0, 1fr); }
  .rules > div { grid-template-columns: 1fr; }
  .week { grid-template-columns: 1fr; }
  .week > .week-n { grid-column: 1; grid-row: auto; padding-bottom: 2px; }
  .week > * { grid-column: 1; }
}

.split { display: grid; gap: clamp(24px, 4vw, 60px); grid-template-columns: 1fr; align-items: center; }
@media (min-width: 900px) { .split { grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr); } }
.split .plate img { max-height: 520px; }
.hero > *, .two-col > *, .split > *, .area > * { min-width: 0; }

/* ---------- Attention model (attention.html) ---------- */
.att { --a: 0.65; --l: 0.75; --zone: color-mix(in srgb, var(--tint-indigo) 60%, transparent); padding-top: clamp(16px, 3vw, 32px); }
:root[data-theme="dark"] .att { --zone: color-mix(in srgb, var(--indigo) 18%, transparent); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .att { --zone: color-mix(in srgb, var(--indigo) 18%, transparent); } }
.att-label { font-style: italic; color: var(--ink-2); margin: 0 0 6px; text-align: left; }
.att-sub { margin-top: 14px; }
.att-controls { display: grid; grid-template-columns: 1fr; gap: 22px 56px; }
@media (min-width: 860px) { .att-controls { grid-template-columns: 1fr 1fr; } }
.att-ctl { border-top: 1px solid var(--rule); padding-top: 12px; min-width: 0; }
.att .filters { margin: 0 0 4px; gap: 0 22px; }
.att .filters button { text-align: left; }
.att-note { font-size: 0.95em; color: var(--ink-2); margin: 4px 0 6px; max-width: var(--measure); }
.att .again { background: none; border: 0; padding: 6px 0; cursor: pointer; color: var(--ink-2); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
@media (hover: hover) and (pointer: fine) { .att .again:hover { color: var(--link-hover); } }
.att-check { display: flex; gap: 8px; align-items: baseline; margin: 0 0 8px; cursor: pointer; text-align: left; }
.att-check input { accent-color: var(--carmine); width: 1.05em; height: 1.05em; flex: none; transform: translateY(2px); }
.att-key { font-size: 0.92em; color: var(--ink-2); margin: 10px 0 0; text-align: left; }
.att-slider { display: grid; grid-template-columns: 8.5em minmax(0, 1fr) 2.8em; align-items: center; gap: 12px; margin: 4px 0; }
.att-slider input[type="range"] { width: 100%; margin: 0; min-height: 30px; accent-color: var(--carmine); }
.att-slider output { font-variant-numeric: lining-nums tabular-nums; text-align: right; }

/* The shared scale: the one moving picture on the page */
.att-outcome { margin-top: clamp(30px, 4vw, 48px); padding-top: 14px; border-top: 1.5px solid var(--ink); }
.att-row, .att-axis { display: grid; grid-template-columns: 4.6em minmax(0, 1fr) 6.6em; gap: 14px; align-items: center; }
.att-row { min-height: 46px; }
.att-row-name { font: 400 1.25rem / 1 var(--head); }
.att-row-num { font-variant-numeric: lining-nums tabular-nums; text-align: right; white-space: nowrap; }
.att-row-num b, .att-cr b { color: var(--carmine); font-weight: 600; }
.att-track {
  position: relative; height: 32px; border-left: 1px solid var(--ink-2); border-right: 1px solid var(--ink-2);
  background: linear-gradient(to right, var(--zone) calc((1 - var(--l)) * 100%), transparent calc((1 - var(--l)) * 100%) calc(var(--l) * 100%), var(--zone) calc(var(--l) * 100%));
}
.att-track::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; border-top: 1px solid var(--rule); }
.att-arrow { position: absolute; top: 50%; height: 0; border-top: 2px solid var(--carmine); transition: left 220ms cubic-bezier(0.23, 1, 0.32, 1), width 220ms cubic-bezier(0.23, 1, 0.32, 1); }
.mk { position: absolute; top: 50%; width: 13px; height: 13px; border-radius: 50%; transform: translate(-50%, -50%); transition: left 220ms cubic-bezier(0.23, 1, 0.32, 1); }
.mk.before { border: 1.5px solid var(--ink); background: var(--paper); }
.mk.after { background: var(--carmine); }
.mk.all { width: 10px; height: 10px; border-radius: 0; border: 1.5px solid var(--ink-2); background: var(--paper); transform: translate(-50%, -50%) rotate(45deg); }
.att-axis { margin-top: 2px; font-size: 0.82em; line-height: 1.15; color: var(--ink-2); font-style: italic; align-items: start; }
.att-zones { display: grid; grid-template-columns: calc((1 - var(--l)) * 100%) minmax(0, 1fr) calc((1 - var(--l)) * 100%); text-align: center; }
.att-zones > span { overflow: hidden; padding: 0 2px; }
.att-legend { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; font-size: 0.9em; color: var(--ink-2); margin: 14px 0 0; }
.att-li { display: inline-flex; align-items: center; gap: 7px; margin-right: 16px; white-space: nowrap; }
.att-legend .mk { position: static; display: inline-block; transform: none; flex: none; }
.att-legend .mk.all { transform: rotate(45deg); }
.att-verdict { font: 400 1.5rem / 1.25 var(--head); margin: 20px 0 6px; max-width: 32em; text-align: left; -webkit-hyphens: manual; hyphens: manual; }
.att-all { color: var(--ink-2); max-width: var(--measure); }
@media (max-width: 620px) {
  .att-row { grid-template-columns: minmax(0, 1fr) auto; grid-template-areas: "name num" "track track"; gap: 2px 10px; padding-bottom: 6px; }
  .att-row-name { grid-area: name; } .att-row-num { grid-area: num; } .att-track { grid-area: track; }
  .att-axis { grid-template-columns: minmax(0, 1fr); }
  .att-axis > span:not(.att-zones) { display: none; }
}

/* The two agents */
.att-agents { display: grid; grid-template-columns: 1fr; gap: 28px 56px; margin-top: clamp(26px, 4vw, 44px); }
@media (min-width: 860px) { .att-agents { grid-template-columns: 1fr 1fr; } }
.att-agent { border-top: 1px solid var(--rule); padding-top: 12px; min-width: 0; }
.att-agent h3 { margin: 0 0 10px; }
.att-sal { display: grid; grid-template-columns: 1.4em minmax(0, 1fr) 2.6em; gap: 2px 10px; align-items: center; margin: 0 0 8px; }
.att-ev { font-weight: 700; color: var(--ink); }
.att-sal:not(.on) .att-ev { color: var(--faint); text-decoration: line-through; }
.att-bar { position: relative; height: 10px; background: var(--paper-2); }
.att-bar > span { position: absolute; left: 0; top: 0; bottom: 0; background: var(--faint); transition: width 220ms cubic-bezier(0.23, 1, 0.32, 1); }
.att-sal.on .att-bar > span { background: var(--ink); }
.att-bar::after { content: ""; position: absolute; top: -5px; bottom: -5px; left: calc(var(--a) * 100%); border-left: 2px solid var(--carmine); }
.att-num { font-variant-numeric: lining-nums tabular-nums; text-align: right; }
.att-why { grid-column: 2 / 4; font-size: 0.85em; font-style: italic; color: var(--ink-2); text-align: left; }
.att-says { margin: 12px 0 10px; text-align: left; }
.att-cr { margin: 0 0 10px; }
.att-cr > div { display: grid; grid-template-columns: 5.2em minmax(0, 1fr); padding: 5px 0; border-top: 1px solid var(--rule); }
.att-cr dt { font-style: italic; color: var(--ink-2); }
.att-cr dd { margin: 0; font-variant-numeric: lining-nums tabular-nums; text-align: left; }
.att-adjust, .att-tt { border-top: 1px solid var(--rule); padding: 8px 0; }
.att-adjust summary, .att-tt summary { cursor: pointer; padding: 4px 0; }
@media (hover: hover) and (pointer: fine) { .att-adjust summary:hover, .att-tt summary:hover { color: var(--link-hover); } }
.att-group { border: 0; padding: 0; margin: 10px 0 4px; min-width: 0; }
.att-group legend { font-style: italic; color: var(--ink-2); padding: 0; margin-bottom: 2px; font-size: 0.95em; }
.att-agent .att-slider { grid-template-columns: 5.9em minmax(0, 1fr) 2.6em; }
.att-agent .att-slider label { font-variant-numeric: lining-nums; white-space: nowrap; font-size: 0.95em; }
.att-derived { font-size: 0.9em; color: var(--ink-2); text-align: left; font-variant-numeric: lining-nums; }
.att-tt-note { font-size: 0.9em; color: var(--ink-2); max-width: 30em; }
.att-table { border-collapse: collapse; font-variant-numeric: lining-nums tabular-nums; font-size: 0.92em; margin-top: 6px; }
.att-table th, .att-table td { padding: 2px 9px; text-align: center; }
.att-table th { font-weight: 400; font-style: italic; color: var(--ink-2); border-bottom: 1px solid var(--rule); }
.att-table td:nth-child(n+5) { text-align: right; }
.att-table tr.out td { color: var(--faint); text-decoration: line-through; }

/* ---------- Normal science and revolutions (kuhn.html) ----------
   The grid is the memorable thing; the controls borrow the attention model's look. */
.kuhn { padding-top: clamp(16px, 3vw, 32px); }
.kuhn-stage { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px;
  grid-template-areas: "start" "grid" "status" "run" "chart" "params"; }
.kuhn-start { grid-area: start; } .kuhn-grid-wrap { grid-area: grid; } .kuhn-status { grid-area: status; }
.kuhn-run { grid-area: run; } .kuhn-chart-wrap { grid-area: chart; } .kuhn-params { grid-area: params; }
@media (min-width: 900px) {
  .kuhn-stage { grid-template-columns: minmax(0, 470px) minmax(0, 1fr); gap: 20px 56px;
    grid-template-areas: "grid start" "grid status" "grid run" "chart chart" "params params"; grid-template-rows: auto auto 1fr auto auto; }
  .kuhn-params { max-width: 46em; }
}
.kuhn-ctl { border-top: 1px solid var(--rule); padding-top: 12px; min-width: 0; }
.kuhn .filters { margin: 0 0 4px; gap: 0 22px; }
.kuhn-grid-wrap { min-width: 0; width: 100%; max-width: 520px; align-self: start; }
.kuhn-grid { display: block; width: 100%; aspect-ratio: 1; background: var(--paper-2); }
.kuhn-status { min-width: 0; }
.kuhn-status-head { font: 400 1.5rem / 1.2 var(--head); margin: 0 0 6px; text-align: left; }
main .kuhn-status-body { color: var(--ink-2); margin: 0; max-width: var(--measure); min-height: 4.7em; text-align: left; -webkit-hyphens: manual; hyphens: manual; }
@media (max-width: 620px) { main .kuhn-status-body { min-height: 6.2em; } }
.kuhn-buttons { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 22px; margin: 0 0 10px; }
.kuhn-play { min-width: 8.5em; text-align: center; }
.kuhn .again { background: none; border: 0; padding: 6px 0; cursor: pointer; color: var(--ink-2); font-size: 1em;
  text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.18em; -webkit-tap-highlight-color: transparent; }
@media (hover: hover) and (pointer: fine) { .kuhn .again:hover { color: var(--link-hover); } }
@media (pointer: coarse) { .kuhn .again { min-height: 44px; } }
.kuhn .att-slider { grid-template-columns: 12.5em minmax(0, 1fr) 2.8em; }
.kuhn-year.att-slider { grid-template-columns: 4em minmax(0, 1fr) 2.8em; }
.kuhn-speed { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0 18px; margin-top: 6px; }
.kuhn-speed .att-label { margin: 0; }
.kuhn-seed-row { grid-column: 2 / 4; display: flex; flex-wrap: wrap; align-items: center; gap: 4px 18px; }
.kuhn-seed input { font: inherit; font-variant-numeric: lining-nums tabular-nums; width: 8em; padding: 5px 8px;
  color: var(--ink); background: var(--paper); border: 1px solid var(--rule); border-radius: 0; }
.kuhn-seed input:focus-visible { outline: 2px solid var(--carmine); outline-offset: 1px; }
.kuhn-params .att-note { margin-top: 10px; }
@media (max-width: 560px) {
  .kuhn .att-slider:not(.kuhn-year) { grid-template-columns: minmax(0, 1fr) 2.8em; gap: 0 12px; margin: 8px 0; }
  .kuhn .att-slider:not(.kuhn-year) label { grid-column: 1 / -1; }
  .kuhn-seed-row { grid-column: 1 / -1; }
}
.kuhn-chart-wrap { margin: 0; min-width: 0; border-top: 1.5px solid var(--ink); padding-top: 14px; }
.kuhn-chart { display: block; width: 100%; height: 300px; cursor: pointer; touch-action: pan-y; }
.kuhn-chart-wrap figcaption { margin-top: 10px; font-size: 0.9em; color: var(--ink-2); text-align: left; }
.kuhn-legend { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 22px; }
.kuhn-li { display: inline-flex; align-items: center; gap: 8px; }
.kuhn-sw { display: inline-block; width: 22px; height: 12px; flex: none; }
.sw-pre { background: var(--paper-2); box-shadow: inset 0 0 0 1px var(--rule); }
.sw-normal { background: linear-gradient(90deg, #2d3f8f 0 50%, #c9962c 50% 100%); }
.sw-crisis { background: repeating-linear-gradient(-45deg, var(--ink-2) 0 1px, transparent 1px 5px); box-shadow: inset 0 0 0 1px var(--rule); }
.sw-rev { width: 2px; height: 16px; background: var(--carmine); margin: 0 10px; }
.kuhn-hint { display: block; margin-top: 6px; font-style: italic; }
@media print { .kuhn-stage { display: none; } }

/* ---------- Animations (toolkit, attention.html, kuhn.html) ----------
   Square videos with the text on screen; one per language, the other is hidden like any other text. */
.anim { margin: 0; min-width: 0; }
.anim video { display: block; width: 100%; height: auto; aspect-ratio: 1; background: var(--paper-2); }
.anims { list-style: none; padding: 0; margin: 18px 0 8px; display: grid; gap: 22px; }
.anims .anim { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; }
@media (min-width: 700px) { .anims .anim { grid-template-columns: minmax(0, 330px) minmax(0, 1fr); gap: 0 22px; align-items: start; } }
.anim figcaption { text-align: left; }
.anim figcaption h4 { font: 400 1.22rem / 1.2 var(--head); margin: 0 0 0.35em; }
main .anim figcaption p { margin: 0 0 0.5em; text-align: left; -webkit-hyphens: manual; hyphens: manual; }
.anim-single { max-width: 560px; margin-top: 16px; }
.anim-single figcaption { margin-top: 8px; font-size: 0.92em; color: var(--ink-2); }

/* How the model works */
.att-how h3 { margin: 1.6em 0 0.4em; }
/* Formulas: set like a LaTeX equation environment, in Latin Modern Math */
math { font-family: "Latin Modern Math Subset", "Latin Modern Math", "STIX Two Math", "Cambria Math", math; font-size: 1.08em; }
math[display="block"] { display: block math; margin: 14px 0 20px; font-size: 1.22em; overflow-x: auto; overflow-y: hidden; max-width: 100%; padding: 4px 0; text-align: center; }
.att-how math[display="block"] { max-width: var(--measure); }
@media (max-width: 620px) { math[display="block"] { font-size: 1.06em; } }

/* ---------- 9. Visual work: the darkroom ---------- */
body.darkroom {
  --paper: #1d1512; --paper-2: #2a201b; --ink: #efe5d9; --ink-2: #b6a799; --faint: #7d6d62;
  --rule: #3e312a; --link: #f2b3c0; --link-hover: #ffffff; --carmine: #f08aa1;
  color-scheme: dark;
}
.filters { display: flex; flex-wrap: wrap; gap: 4px 26px; margin: 4px 0 30px; }
.filters button {
  background: none; border: 0; padding: 8px 0; cursor: pointer; color: var(--ink-2); font-size: 1.05em;
  text-decoration: none; text-underline-offset: 0.32em;
}
.filters button[aria-pressed="true"] { color: var(--ink); text-decoration: underline; text-decoration-color: var(--carmine); text-decoration-thickness: 2px; }
.filters .count { font-size: 0.8em; margin-left: 0.35em; color: var(--ink-2); font-variant-numeric: lining-nums; }
@media (hover: hover) and (pointer: fine) { .filters button:hover { color: var(--ink); } }

.gallery { columns: 3 280px; column-gap: 20px; }
.work { break-inside: avoid; margin: 0 0 22px; }
.work button { all: unset; display: block; width: 100%; cursor: zoom-in; }
.work button:focus-visible { outline: 2px solid var(--carmine); outline-offset: 3px; }
.work figcaption { font-size: 0.92rem; line-height: 1.35; color: var(--ink-2); padding: 9px 1px 0; }
.work figcaption strong { display: block; color: var(--ink); font-weight: 500; font-size: 1.06em; }
.work figcaption .meta { display: block; margin-top: 2px; }
.work figcaption time { display: block; font-style: italic; }
.empty { color: var(--ink-2); font-style: italic; }
@media (max-width: 600px) {
  .gallery { columns: 2; column-gap: 12px; }
  .work { margin-bottom: 16px; }
  .work figcaption { font-size: 0.82rem; }
}

/* The viewer fills the screen: tap anywhere outside the image and its caption to close,
   swipe left or right (touch) or use the arrows / arrow keys to move between works. */
dialog.lightbox {
  position: fixed; inset: 0; width: 100%; height: 100%; max-width: none; max-height: none; margin: 0;
  border: 0; color: #efe5d9; background: #160f0c;
  padding: max(12px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right)) max(14px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));
  overscroll-behavior: contain; touch-action: pan-y pinch-zoom;
}
dialog.lightbox[open] { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; gap: 10px; }
dialog.lightbox::backdrop { background: rgba(22, 15, 12, 0.6); }
html:has(dialog.lightbox[open]) { overflow: hidden; }
.lb-top, .lightbox .bar { width: 100%; max-width: 1100px; margin-inline: auto; }
.lb-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.viewer-position { color: #b6a799; font-style: italic; font-size: 0.95rem; margin: 0; }
.lightbox .stage { position: relative; min-height: 0; height: 100%; }
.lightbox .stage > * {
  position: absolute; inset: 0; margin: auto; width: auto; height: auto; max-width: 100%; max-height: 100%;
  user-select: none; -webkit-user-select: none; -webkit-user-drag: none;
}
.lightbox .bar { display: grid; grid-template-columns: 48px minmax(0, 1fr) 48px; align-items: center; gap: 12px; }
.lightbox .caption { text-align: center; font-size: 0.98rem; line-height: 1.35; }
.lightbox .caption strong { display: block; font-weight: 500; }
.lightbox .caption .meta, .lightbox .caption time { display: block; opacity: 0.8; }
.lightbox button {
  min-width: 44px; min-height: 44px; padding: 8px 14px; cursor: pointer; font: inherit;
  background: none; color: #efe5d9; border: 1px solid #5a4a40; -webkit-tap-highlight-color: transparent;
}
.lightbox .lb-arrow { padding: 0; width: 48px; height: 48px; font-size: 1.2rem; }
.lightbox button:active { transform: scale(0.96); }
@media (hover: hover) and (pointer: fine) { .lightbox button:hover { border-color: #f2b3c0; color: #f2b3c0; } }
@media (max-width: 600px) {
  .lightbox .bar { grid-template-columns: 44px minmax(0, 1fr) 44px; gap: 8px; }
  .lightbox .lb-arrow { width: 44px; height: 44px; }
  .lightbox .caption { font-size: 0.9rem; }
}

/* ---------- 10. CV ---------- */
.cv-section { display: grid; grid-template-columns: 1fr; gap: 6px 40px; padding: 26px 0; border-top: 1px solid var(--rule); }
@media (min-width: 900px) { .cv-section { grid-template-columns: 220px minmax(0, 1fr); } }
.cv-section h2 { font-size: 1.5rem; }
.cv-section ul { list-style: none; padding: 0; margin: 0; }
.cv-section li { display: grid; grid-template-columns: 7.5rem 1fr; gap: 14px; padding: 5px 0; }
.cv-section .when { font-style: italic; color: var(--ink-2); }
@media (max-width: 520px) { .cv-section li { grid-template-columns: 1fr; gap: 0; } }

/* ---------- 11. Credits ---------- */
.credits { display: grid; grid-template-columns: 1fr; gap: 26px 56px; }
@media (min-width: 800px) { .credits { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.credit { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 18px; align-items: start; }
.credit .thumb { background: var(--paper-2); padding: 6px; }
.credit .thumb img { width: 100%; height: 84px; object-fit: contain; }
.credit .label { display: block; }
.credit h3 { font-size: 1.2rem; margin-bottom: 0.25em; }
.credit p { font-size: 0.95rem; margin: 0; color: var(--ink-2); }
@media (max-width: 600px) { .credit { grid-template-columns: 70px minmax(0, 1fr); } }

/* ---------- 12. 404 ---------- */
.lost { display: grid; grid-template-columns: 1fr; gap: clamp(32px, 5vw, 72px); align-items: start; padding-top: clamp(36px, 6vw, 88px); }
@media (min-width: 900px) { .lost { grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr); } }
.lost > * { min-width: 0; }
#random-plate .mat { height: clamp(300px, 46vw, 460px); display: block; }
#random-plate .mat img { width: 100%; height: 100%; max-height: none; object-fit: contain; }
#random-plate figcaption { min-height: 4.4em; }
.redraw {
  background: none; border: 0; padding: 8px 0; cursor: pointer; color: var(--link);
  text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.18em;
}

/* ---------- 13. Footer: the band at the foot of the posters ---------- */
.site-footer { background: var(--cacao); color: var(--cacao-ink); margin-top: clamp(56px, 8vw, 110px); font-size: 0.95rem; line-height: 1.4; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 36px; padding-top: 30px; padding-bottom: 36px; }
.site-footer a { color: inherit; }
@media (hover: hover) and (pointer: fine) { .site-footer a:hover { color: #ffffff; } }
.site-footer .who { font: 400 1.15rem / 1.2 var(--head); }

/* ---------- 14. Touch, motion, print ---------- */
@media (pointer: coarse) {
  .nav a, .seg button, .filters button, .btn, .controls .again, .redraw { min-height: 44px; }
  .nav a { display: inline-flex; align-items: center; }
  .icon-btn { width: 44px; height: 44px; }
}
@media (max-width: 640px) {
  .site-header .wrap { gap: 4px 20px; padding-top: 18px; }
  .brand { flex-basis: 100%; font-size: 1.35rem; }
  .nav { gap: 0 18px; }
  .tools { margin-left: auto; }
  .seq { margin-left: 0; width: 100%; padding-top: 4px; }
  .links li { flex-wrap: wrap; }
  .links a { text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media print {
  :root, :root[data-theme="dark"] { --paper: #fff; --paper-2: #fff; --ink: #000; --ink-2: #333; --rule: #bbb; --link: #000; color-scheme: light; }
  .site-header, .site-footer, .skip, .actions { display: none !important; }
  body { font-size: 10.5pt; }
  .wrap { padding: 0; max-width: none; }
  .page-head { padding: 0 0 12pt; }
  h1 { font-size: 26pt; }
  .cv-section { grid-template-columns: 110pt 1fr; padding: 10pt 0; }
  .cv-section li { grid-template-columns: 72pt 1fr; break-inside: avoid; }
  a { text-decoration: none; }
}