/* Nitrile design language, tokens from https://katagami.ai/language/en-01a05fe2-99dc-72a3-8e04-23200da1edc6 */

:root {
  --bg: #F4F0E7;
  --surface: #FBF8F0;
  --recess: #EFEADF;
  --ink: #141311;
  --muted: #6B665D;
  --hair: rgba(20, 19, 17, .22);
  --accent: #168EA0;
  --accent-soft: #DCEBEC;

  --font-body: "Noto Sans", system-ui, sans-serif;
  --font-head: "Archivo Narrow", sans-serif;
  --font-mono: "Fragment Mono", ui-monospace, Menlo, monospace;

  --shadow-sm: 0 1px 0 rgba(20, 19, 17, .10);
  --shadow-md: 0 18px 48px rgba(20, 19, 17, .08);

  --ease: cubic-bezier(.2, .7, .1, 1);
  --dur: 140ms;

  --measure: 1320px;
  --gutter: 24px;
  --side: 32px;
}

@media (min-width: 1920px) { :root { --measure: 1560px; } }
@media (max-width: 767px)  { :root { --side: 16px; } }

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.55 var(--font-body);
  text-rendering: optimizeLegibility;
}

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

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--accent); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: -.02em;
  line-height: 1.05;
  margin: 0;
}

.measure {
  max-width: calc(var(--measure) + 2 * var(--side));
  margin: 0 auto;
  padding: 0 var(--side);
}

.skip {
  position: absolute; left: -9999px; top: 8px;
  background: var(--ink); color: var(--surface); padding: 8px 12px;
}
.skip:focus { left: 8px; }

/* Masthead, with a ruler of ticks along its lower edge */

.masthead {
  padding: 24px 0 20px;
  background:
    repeating-linear-gradient(90deg, var(--hair) 0 1px, transparent 1px 12px) bottom left / 100% 6px no-repeat,
    linear-gradient(var(--hair), var(--hair)) bottom left / 100% 1px no-repeat;
}

.masthead__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px 32px;
  flex-wrap: wrap;
}

.wordmark {
  font: 700 24px/1 var(--font-head);
  letter-spacing: -.01em;
  text-decoration: none;
}

.nav { display: flex; flex-wrap: wrap; gap: 4px 24px; font: 14.5px/1.4 var(--font-mono); }
.nav a { text-decoration: none; padding: 4px 0; }
.nav a:hover, .nav a[aria-current] { text-decoration: underline; }

/* Corner registration ticks: two opposite corners of a tray */

.ticks { position: relative; }
.ticks::before, .ticks::after {
  content: "";
  position: absolute;
  width: 9px; height: 9px;
  pointer-events: none;
}
.ticks::before { top: -5px; left: -5px; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.ticks::after  { bottom: -5px; right: -5px; border-bottom: 1px solid var(--ink); border-right: 1px solid var(--ink); }

/* Module heads, labels and pins */

.module-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-top: 8px;
  margin-bottom: 16px;
}
.module-head h2 { font-size: 30.9px; }
.module-head__more { font: 14.5px/1.4 var(--font-mono); white-space: nowrap; }

.module-label {
  display: flex; align-items: center; gap: 8px;
  margin: 0 0 12px;
  font: 12.5px/1 var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
}

.pin { display: inline-block; width: 6px; height: 6px; background: var(--accent); flex: none; }

.subhead { font-size: 20.7px; margin: 32px 0 8px; }

/* Buttons: square, hairline, capitals reserved for button caps */

.btn {
  display: inline-block;
  padding: 11px 18px;
  border: 1px solid var(--ink);
  background: transparent;
  font: 13px/1 var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.btn:hover { background: var(--recess); }
.btn--ink { background: var(--ink); color: var(--surface); }
.btn--ink:hover { background: #2b2925; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 0; }

/* Hero: the plate is the stage, the copy sits in its reserved quiet field */

.hero { padding: 48px 0 0; }

.hero__plate {
  margin: 0;
  border: 1px solid var(--ink);
  background: var(--surface);
  box-shadow: var(--shadow-md);
}

.hero__plate img {
  width: 100%;
  animation: stop-down 900ms var(--ease) both;
}

@keyframes stop-down {
  from { clip-path: inset(46% 46% 46% 46%); }
  to   { clip-path: inset(0 0 0 0); }
}

.hero__copy {
  position: absolute;
  top: 50%;
  left: 5%;
  width: 28%;
  transform: translateY(-50%);
}

.hero__copy h1 { font-size: clamp(52px, 6.4vw, 96px); font-weight: 700; line-height: .92; }
.hero__copy .lede { margin: 20px 0 0; max-width: 34ch; }

.readout {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin: 32px 0 0;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}
.readout div { padding: 16px 16px 16px 0; }
.readout div + div { padding-left: 16px; border-left: 1px solid var(--hair); }
.readout dt {
  font: 12.5px/1 var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
}
.readout dd { margin: 8px 0 0; font: 400 30px/1 var(--font-mono); font-variant-numeric: tabular-nums; }

/* Bench: one dominant slab, a narrow gutter, sealed air between */

.bench, .works, .writing { padding: 96px 0 0; }
.writing { padding-bottom: 96px; }

.bench__grid, .writing__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  align-items: start;
}
.slab   { grid-column: 1 / span 8; min-width: 0; }
.gutter { grid-column: 10 / span 3; min-width: 0; }

.bench .slab, .slab--dominant {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow-md);
}

/* Packet strips */

.strip { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--hair); }

.strip__row {
  display: grid;
  gap: 0 16px;
  align-items: baseline;
  padding: 12px 8px;
  border-bottom: 1px solid var(--hair);
  transition: background-color var(--dur) var(--ease);
}
.strip__row:hover { background: var(--recess); }
.strip__row a { text-decoration: none; }
.strip__row a:hover { text-decoration: underline; text-decoration-color: var(--accent); }

.strip--talks .strip__row { grid-template-columns: 48px 56px 1fr 48px; }
.strip--talks time, .strip__rail, .strip__flag {
  font: 14.5px/1.4 var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.strip--talks time, .strip__flag { color: var(--muted); }
.strip__rail { color: var(--ink); }
.strip__flag { text-align: right; }

.strip__row.is-pinned { background: var(--accent-soft); }
.strip__row.is-pinned a { position: relative; font-weight: 500; }
.strip__row.is-pinned a::before {
  content: "";
  position: absolute;
  left: -11px; top: .55em;
  width: 6px; height: 6px;
  background: var(--accent);
}

.strip--projects { margin-top: 32px; }
.strip--projects .strip__row { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.strip--projects a { font-weight: 500; }
.strip__note { color: var(--muted); font-size: 15.5px; }

.strip--articles .strip__row { padding-left: 0; }

/* Gutter: plate and transcript channel */

.plate { margin: 0 0 24px; border: 1px solid var(--hair); background: var(--surface); }

.transcript {
  margin: 0;
  padding: 16px;
  background: var(--recess);
  border: 1px solid var(--hair);
  font: 13.5px/1.6 var(--font-mono);
  overflow-x: auto;
  white-space: pre;
}
.transcript .prompt { color: var(--muted); }
.transcript a { text-decoration-color: var(--accent); }

/* Featured project tray */

.feature {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  align-items: center;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--hair);
}
.feature__plate { grid-column: 1 / span 7; margin: 0; background: var(--surface); }
.feature__copy  { grid-column: 8 / span 5; padding: 24px 16px 24px 8px; }
.feature__copy h3 { font-size: 37.7px; margin-bottom: 12px; }
.feature__copy h3 a { text-decoration: none; }
.feature__copy p:not(.module-label) { margin: 0 0 24px; }

/* Publication ledger with filled meters */

.ledger { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--hair); }
.ledger li {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr) 40px;
  gap: 16px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--hair);
}
.ledger__meter { height: 6px; border: 1px solid var(--hair); }
.ledger__meter span { display: block; height: 100%; background: var(--accent); }
.ledger__count { font: 14.5px/1 var(--font-mono); text-align: right; font-variant-numeric: tabular-nums; }

.gutter__intro { margin: 0 0 16px; color: var(--muted); font-size: 15.5px; }
.stack { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--hair); }
.stack li { padding: 16px 0; border-bottom: 1px solid var(--hair); }
.stack a { display: block; font-weight: 500; margin-bottom: 4px; }
.stack span { display: block; font-size: 15.5px; color: var(--muted); }

/* Colophon */

.colophon {
  padding: 32px 0 48px;
  border-top: 1px solid var(--ink);
  font: 14.5px/1.5 var(--font-mono);
}
.colophon__row { display: flex; flex-wrap: wrap; gap: 8px 32px; justify-content: space-between; }
.colophon p { margin: 0; }
.colophon__links { display: flex; gap: 20px; }
.colophon__copy { color: var(--muted); width: 100%; }

/* Inner pages */

.doc { padding: 48px 0 96px; }

.crumbs {
  display: flex; gap: 8px;
  margin-bottom: 24px;
  font: 14.5px/1.4 var(--font-mono);
  color: var(--muted);
}

.doc-head { padding-top: 8px; margin-bottom: 32px; max-width: 900px; }
.doc-head h1 { font-size: clamp(40px, 5vw, 68px); font-weight: 700; line-height: .95; }
.doc-head--talk h1 { font-size: clamp(34px, 4.2vw, 56px); line-height: 1; }
.doc-head__lede { margin: 16px 0 0; max-width: 62ch; color: var(--muted); }
.doc-head__lede p { margin: 0; }

.readout--compact { grid-template-columns: repeat(auto-fit, minmax(160px, max-content)); margin: 0 0 48px; }
.readout--compact div { padding-right: 32px; }
.readout--compact dd { white-space: nowrap; font-size: 20.7px; display: flex; align-items: center; gap: 8px; }

.bench__grid--doc { margin-top: 0; }
.bench__grid--doc .slab   { grid-column: 1 / span 7; }
.bench__grid--doc .gutter { grid-column: 9 / span 4; }
.slab.prose { max-width: none; }

.prose { max-width: 70ch; }
.prose > :first-child { margin-top: 0; }
.prose > :last-child { margin-bottom: 0; }
.prose p, .prose ul, .prose ol { margin: 0 0 1em; }
.prose h2 { font-size: 25.3px; margin: 1.6em 0 .5em; }
.prose h3 { font-size: 20.7px; margin: 1.4em 0 .4em; }
.prose code {
  font: 14.5px var(--font-mono);
  background: var(--recess);
  padding: 1px 4px;
}
.prose pre { background: var(--recess); border: 1px solid var(--hair); padding: 16px; overflow-x: auto; }
.prose pre code { background: none; padding: 0; }
.prose img { border: 1px solid var(--hair); }
.prose__lead { font-size: 19px; line-height: 1.5; }

/* Full talk log */

.year + .year .strip { border-top: 0; }
.strip__year { font: 14.5px/1.4 var(--font-mono); letter-spacing: 0; }
.strip--log .strip__row { scroll-margin-top: 24px; }
.year { scroll-margin-top: 24px; }

.gutter--sticky { position: sticky; top: 24px; }

.year-index {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--hair);
  font: 14.5px/1.4 var(--font-mono);
}
.year-index li {
  display: flex; justify-content: space-between;
  padding: 8px 12px 8px 0;
  border-bottom: 1px solid var(--hair);
}
.year-index li:nth-child(even) { padding-left: 12px; border-left: 1px solid var(--hair); }
.year-index span { color: var(--muted); }

.stack--nav li { padding: 12px 0; }
.stack__dir {
  display: block;
  font: 12.5px/1 var(--font-mono) !important;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 6px;
}
.gutter__more { margin: 24px 0 0; }

/* Project register */

.register { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--hair); }
.register__row {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--hair);
}
.register__row--featured {
  padding: 24px;
  margin: 24px 0;
  background: var(--surface);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow-md);
}
.register__plate { grid-column: 1 / span 4; display: block; border: 1px solid var(--hair); background: var(--surface); }
.register__row--featured .register__plate { grid-column: 1 / span 6; }
.register__copy { grid-column: 5 / span 8; }
.register__row--featured .register__copy { grid-column: 7 / span 6; }
.register__copy h2 { font-size: 30.9px; margin-bottom: 8px; }
.register__row--featured h2 { font-size: 37.7px; }
.register__copy h2 a { text-decoration: none; }
.register__copy h2 a:hover { text-decoration: underline; text-decoration-color: var(--accent); }
.register__copy p { margin: 0 0 12px; max-width: 62ch; }
.register__links { display: flex; flex-wrap: wrap; gap: 8px 20px; font: 14.5px/1.4 var(--font-mono); }

.register--text { margin-top: 32px; }
.register--text .register__copy { grid-column: 1 / -1; }

.project-plate img { width: 100%; aspect-ratio: 21 / 9; object-fit: cover; }
.project-plate {
  margin: 0 0 48px;
  border: 1px solid var(--ink);
  background: var(--surface);
  box-shadow: var(--shadow-md);
}

.evidence { margin: 48px 0 0; }
.evidence img { width: auto; max-width: 100%; max-height: 460px; border: 1px solid var(--hair); background: var(--surface); }
.evidence figcaption { margin-top: 8px; font: 13px/1.4 var(--font-mono); color: var(--muted); }

/* Articles */

.publication + .publication { margin-top: 48px; }
.publication { scroll-margin-top: 24px; }
.ledger--compact li { grid-template-columns: minmax(0, 1fr) 56px 28px; gap: 12px; }
.ledger--compact .ledger__name { font-size: 15.5px; }

/* 768 to 1180 is its own layout: gutter drops beneath the slab */

@media (max-width: 1180px) {
  .slab, .gutter { grid-column: 1 / -1; }
  .gutter { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--gutter); }
  .gutter .module-head, .gutter__intro { grid-column: 1 / -1; }
  .gutter .stack { grid-column: 1 / -1; }
  .plate { margin: 0; }

  .feature__plate, .feature__copy { grid-column: 1 / -1; }
  .feature__copy { padding: 8px 0 0; }

  .hero__copy { width: 30%; }
  .hero__copy .lede { font-size: 15.5px; }
}

@media (max-width: 1000px) {
  .hero__copy {
    position: static;
    width: auto;
    transform: none;
    padding: 32px 24px 8px;
    border-bottom: 1px solid var(--hair);
    background: var(--surface);
  }
  .hero__plate { display: flex; flex-direction: column-reverse; }
  .hero__copy .lede { font-size: 17px; max-width: 60ch; }

  .readout { grid-template-columns: repeat(3, 1fr); }
  .readout div:nth-child(n+4) { display: none; }
}

@media (max-width: 767px) {
  .hero { padding-top: 24px; }
  .bench, .works, .writing { padding-top: 64px; }
  .writing { padding-bottom: 64px; }
  .gutter { grid-template-columns: minmax(0, 1fr); }
  .bench .slab { padding: 16px; }
  .strip--talks .strip__row { grid-template-columns: 44px 1fr; }
  .strip--talks time { display: none; }
  .strip__flag { display: none; }
  .strip--projects .strip__row { grid-template-columns: 1fr; }
  .ledger li { grid-template-columns: minmax(0, 1fr) 72px 32px; }
  .feature { padding: 16px; }
  .feature__copy h3 { font-size: 30.9px; }
  .module-head h2 { font-size: 25.3px; }
  .readout dd { font-size: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero__plate img { animation: none; }
  * { transition: none !important; }
}

/* Inner pages at narrower widths */

@media (max-width: 1180px) {
  .gutter--sticky { position: static; }
  .gutter--sticky .plate { display: none; }
  .gutter--sticky { display: block; }
  .year-index { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
  .year-index li:nth-child(even) { padding-left: 0; border-left: 0; }
  .register__row--featured .register__plate { grid-column: 1 / -1; }
  .register__row--featured .register__copy { grid-column: 1 / -1; }
  .doc .bench__grid--doc { display: flex; flex-direction: column; }
  .doc .gutter--sticky { order: -1; width: 100%; }
}

@media (max-width: 767px) {
  .doc { padding: 32px 0 64px; }
  .register__plate, .register__copy { grid-column: 1 / -1; }
  .register__row--featured { padding: 16px; }
  .register__copy h2, .register__row--featured h2 { font-size: 25.3px; }
  .project-plate { margin-bottom: 32px; }
  .readout--compact { margin-bottom: 32px; }
  .slab--dominant { padding: 16px; }
}