@font-face { font-family: "Inter"; src: url("/assets/fonts/inter-latin-wght-normal.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }

:root {
  --bg: #fbfaf7;
  --ink: #1d1d1b;
  --muted: #6b6a65;          /* 5.4:1 on --bg */
  --rule: #d6d3cb;
  --surface: #f3f2ee;        /* mineral, subtle */
  --accent: #2f5d50;
  --margin: clamp(20px, 4vw, 56px);
  --gap: clamp(16px, 2vw, 28px);
  --max: 1440px;
  --figure: 960px;
  --space-fig: clamp(56px, 7vw, 96px);
  --space-section: clamp(120px, 14vw, 200px);
  --label-col: clamp(140px, 14vw, 220px);
  --ease: cubic-bezier(.2, .7, .2, 1);

  --font-display: "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --display-weight: 400;
  --display-track: -0.02em;
  --label-case: none;
  --label-track: 0;
  --label-size: 0.875rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { background: var(--bg); color: var(--ink); -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 400 1.0625rem/1.6 var(--font-body); }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.muted { color: var(--muted); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: var(--margin); top: 8px; background: var(--bg); padding: 8px 12px; z-index: 10; }

.eyebrow, .fig__num, dt, .card__tags, .pilot-label, .pipe__n, .chapter__h span {
  font-size: var(--label-size); letter-spacing: var(--label-track); text-transform: var(--label-case);
  color: var(--muted); font-weight: 400;
}

/* Header */
.site-header { display: flex; justify-content: space-between; align-items: baseline; padding: 28px var(--margin); max-width: var(--max); margin: 0 auto; }
.wordmark { font: var(--display-weight) 1.25rem/1 var(--font-display); letter-spacing: var(--display-track); text-decoration: none; }
.site-header ul { display: flex; gap: clamp(16px, 3vw, 40px); list-style: none; margin: 0; padding: 0; }
.site-header a { text-decoration: none; color: var(--muted); transition: color .2s; }
.site-header a:hover, .site-header a[aria-current] { color: var(--ink); }

main, .site-footer { max-width: var(--max); margin: 0 auto; padding: 0 var(--margin); }

/* Hero: one declarative statement, revealed line by line */
.hero { padding: clamp(64px, 14vh, 160px) 0 clamp(64px, 12vh, 140px); }
.statement {
  font: var(--display-weight) clamp(2rem, 4.6vw, 4.25rem)/1.08 var(--font-display);
  letter-spacing: var(--display-track); max-width: 20ch; margin: 16px 0 32px;
}
.line { display: inline; }
.js .line { display: inline-block; animation: rise .9s var(--ease) both; animation-delay: calc(var(--i) * 110ms + 100ms); }
@media (min-width: 960px) { .statement { max-width: none; } .line, .js .line { display: block; } }
@media (max-width: 959px) {
  .js .line { display: inline; animation: none; }
  .js .statement { animation: rise .9s var(--ease) both .1s; }
  .hero { padding-top: 48px; }
}
.loop { color: var(--muted); margin: 0; }
.loop span { padding: 0 .4em; }
@keyframes rise { from { opacity: 0; transform: translateY(0.4em); } to { opacity: 1; transform: none; } }

/* Section heads with a hairline rule */
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: var(--gap); border-top: 1px solid var(--ink); padding-top: 14px; margin-bottom: 32px; flex-wrap: wrap; }
.section-head h2 { font: var(--display-weight) 1.25rem/1.2 var(--font-display); letter-spacing: var(--display-track); margin: 0; }
.section-head p { margin: 0; font-size: .9375rem; }

/* Media: reserved space, quiet loading line, fade in on readiness */
.media { position: relative; display: block; aspect-ratio: var(--ar); background: var(--surface); overflow: hidden; }
.media img { width: 100%; height: 100%; object-fit: cover; object-position: left top; }
.media--contain img { object-fit: contain; object-position: center; padding: 6%; }
.media__bar { position: absolute; left: 0; bottom: 0; height: 1px; width: 100%; background: var(--ink); transform-origin: left; transform: scaleX(0); opacity: 0; }
.js .media:not(.is-loaded) img { opacity: 0; }
.js .media img { transition: opacity .7s var(--ease); }
.js .media:not(.is-loaded):not(.is-error) .media__bar { opacity: .5; animation: load 1.6s var(--ease) infinite; }
.media.is-error::after { content: "Image unavailable"; position: absolute; inset: auto 12px 12px; font-size: .8125rem; color: var(--muted); }
@keyframes load { 0% { transform: scaleX(0); } 60% { transform: scaleX(1); transform-origin: left; } 61% { transform-origin: right; } 100% { transform: scaleX(0); transform-origin: right; } }

/* Work cards: title + grey category, AAT style */
.cards { list-style: none; margin: 0 0 clamp(96px, 16vh, 200px); padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(56px, 6vw, 88px) clamp(24px, 3.5vw, 56px); }
.card a { text-decoration: none; display: block; }
.card .media { aspect-ratio: 3 / 2; }
.card .media img { transition: opacity .7s var(--ease), transform .9s var(--ease); }
.card a:hover .media img { transform: scale(1.015); }
.card__meta { display: flex; justify-content: space-between; align-items: baseline; margin-top: 20px; }
.card__title { font: var(--display-weight) 1.1875rem/1.3 var(--font-display); letter-spacing: var(--display-track); }
.card__lock svg { width: 14px; height: 14px; fill: none; stroke: var(--muted); stroke-width: 1.3; }
.card__tags { display: flex; justify-content: space-between; gap: 8px; margin-top: 4px; font-size: .8125rem; }

/* Study page */
.pilot-label-unused { border: 1px dashed var(--rule); padding: 8px 12px; display: inline-block; margin-bottom: 40px; }
.study { border-top: 1px solid var(--ink); padding-top: 48px; }
.study__title { font: var(--display-weight) clamp(1.75rem, 3.6vw, 3.25rem)/1.1 var(--font-display); letter-spacing: var(--display-track); max-width: 22ch; margin: 12px 0 48px; }
.meta { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 var(--gap); margin: 0 0 clamp(48px, 8vh, 96px); }
.meta div { border-top: 1px solid var(--rule); padding-top: 12px; }
dt { margin-bottom: 4px; }
dd { margin: 0; font-size: .9375rem; line-height: 1.5; }

.chapter { display: grid; grid-template-columns: var(--label-col) minmax(0, 1fr); gap: var(--gap); border-top: 1px solid var(--rule); padding-top: 16px; margin: var(--space-section) 0 clamp(40px, 4vw, 56px); }
.chapter__h { font: var(--display-weight) 1.5rem/1.2 var(--font-display); letter-spacing: var(--display-track); margin: 0; }
.chapter__h span { display: block; margin-bottom: 6px; }
.chapter__body p { margin: 0; max-width: 68ch; }

/* Figures with rule-topped captions */
.fig { margin: 0 0 var(--space-fig); }
.study > .fig:not(.sequence):not(.zoom):not(.pipe):not(.video) { max-width: var(--figure); }

.fig figcaption { display: grid; grid-template-columns: 4.5rem 1fr; gap: 4px 12px; padding-top: 12px; margin-top: 12px; border-top: 1px solid var(--rule); font-size: .875rem; line-height: 1.5; max-width: 72ch; }

.fig--narrow { max-width: 300px; }
.fig--two-thirds { max-width: 66%; }
.study > .fig--two-thirds { max-width: min(66%, var(--figure)); }
@media (max-width: 959px) { .fig--two-thirds { max-width: none; } }
.review-note { grid-column: 2; color: #8a5a00; font-size: .8125rem; }

.sequence ol { list-style: none; margin: 0; padding: clamp(20px, 3vw, 40px); background: var(--surface); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap); }
.sequence li .media { box-shadow: 0 0 0 1px rgb(0 0 0 / .06); }
.sequence li p { margin: 12px 0 0; font-size: .875rem; display: flex; gap: 10px; }

.pair > .fig, .before-after > .fig { margin-bottom: 0; }
.pair, .before-after { margin-bottom: var(--space-fig); display: grid; grid-template-columns: 3fr 2fr; gap: var(--gap); align-items: start; }
.before-after { grid-template-columns: 1fr 1fr; }
.pair--board { grid-template-columns: auto 300px; justify-content: start; }

/* Outcome statement */
.outcome { border-top: 1px solid var(--ink); padding-top: 14px; margin: clamp(56px, 8vh, 96px) 0; display: grid; grid-template-columns: var(--label-col) minmax(0, 1fr); gap: var(--gap); }
.outcome .eyebrow { margin: 0; }
.outcome__text { font: var(--display-weight) clamp(1.25rem, 2vw, 1.75rem)/1.3 var(--font-display); letter-spacing: var(--display-track); margin: 0; max-width: 44ch; }

/* Optional demo video: poster first, playback only on request */
.video { max-width: var(--figure); }
.video__frame { position: relative; }
.video__play { position: absolute; left: 16px; bottom: 16px; display: inline-flex; align-items: center; gap: 10px; padding: 10px 16px 10px 12px; border: 0; border-radius: 999px; background: var(--bg); color: var(--ink); font: inherit; font-size: .875rem; cursor: pointer; box-shadow: 0 2px 12px rgb(0 0 0 / .12); }
.video__play[aria-disabled="true"] { cursor: not-allowed; }
.video__play svg { width: 14px; height: 14px; fill: currentColor; }
.tag { font-weight: 500; }

/* Go deeper: optional sources, never required to follow the story */
.deeper { border-top: 1px solid var(--ink); padding-top: 14px; margin-top: clamp(96px, 14vh, 160px); display: grid; grid-template-columns: var(--label-col) minmax(0, 1fr); gap: var(--gap); }
.deeper__intro { margin: 0; }
.deeper__h { font: var(--display-weight) 1.5rem/1.2 var(--font-display); letter-spacing: var(--display-track); margin: 0 0 8px; }
.deeper__intro p { margin: 0; font-size: .9375rem; }
.deeper ul { list-style: none; margin: 0; padding: 0; }
.deeper li { display: grid; grid-template-columns: 1fr auto; gap: 4px 16px; padding: 16px 0; border-bottom: 1px solid var(--rule); }
.deeper li:first-child { padding-top: 4px; }
.deeper__type, .deeper__meta { font-size: var(--label-size); letter-spacing: var(--label-track); text-transform: var(--label-case); color: var(--muted); }
.deeper__meta { text-align: right; }
.deeper__title { grid-column: 1 / -1; font: var(--display-weight) 1.125rem/1.3 var(--font-display); letter-spacing: var(--display-track); text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 4px; }
.deeper__title:hover { text-decoration-color: var(--ink); }
.deeper__desc { grid-column: 1 / -1; font-size: .875rem; color: var(--muted); }

/* Context + detail: orient with the whole, read the part */
.zoom { display: grid; grid-template-columns: 1fr 2fr; gap: var(--gap); align-items: start; }
.zoom figcaption { grid-column: 1 / -1; }
.zoom__context { position: relative; }
.zoom__context img { filter: grayscale(1) contrast(.9); opacity: .55; }
.js .zoom__context .media.is-loaded img { opacity: .55; }
.zoom__mark { position: absolute; outline: 1.5px solid var(--ink); outline-offset: 2px; background: rgb(255 255 255 / .15); }
.zoom__detail .media { box-shadow: 0 0 0 1px var(--rule); }
@media (max-width: 959px) { .zoom { grid-template-columns: 1fr; } }

/* Pipeline diagram: typographic, ruled, responsive */
.pipe { background: var(--surface); padding: clamp(20px, 3vw, 40px); margin-block: 0 var(--gap); }
.pipe ol { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; }
.pipe li { border-top: 1px solid var(--ink); padding: 14px 16px 0 0; position: relative; }
.pipe li::after { content: ""; position: absolute; top: -4px; left: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--ink); }
.pipe h4 { font: var(--display-weight) 1.0625rem/1.25 var(--font-display); letter-spacing: var(--display-track); margin: 8px 0 6px; }
.pipe p { margin: 0; font-size: .875rem; line-height: 1.45; }
.pipe .pipe__rule { margin-top: 10px; color: var(--muted); font-style: italic; }
.pipe__end { font-size: .875rem; color: var(--muted); margin: 0 0 20px; }
.pipe__end--out { margin: 24px 0 0; text-align: right; color: var(--ink); }
.pipe__end--out::before { content: "\2192\00a0"; }
.pipe figcaption { border-color: color-mix(in srgb, var(--ink) 25%, transparent); margin-top: 28px; }

/* Scroll reveal for figures only; text is never hidden */
.js .fig.reveal { opacity: 0; transform: translateY(16px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .fig.reveal.in-view { opacity: 1; transform: none; }

.site-footer { display: flex; justify-content: space-between; border-top: 1px solid var(--ink); padding-top: 16px; padding-bottom: 120px; margin-top: 120px; font-size: .875rem; }


@media (max-width: 959px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 639px) { .cards { grid-template-columns: 1fr; } }
@media (max-width: 959px) {
  .pair, .before-after, .pair--board, .chapter, .outcome, .deeper { grid-template-columns: 1fr; }
  .deeper li { grid-template-columns: 1fr auto; }
  .video { max-width: none; }
  .meta { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px var(--gap); }
  .sequence ol { grid-template-columns: 1fr; }
  .pipe ol { grid-template-columns: 1fr; gap: 20px; }
  .pipe li { border-top: 0; border-left: 1px solid var(--ink); padding: 0 0 0 18px; }
  .pipe li::after { top: 0; left: -4px; }
  .pipe__end--out { text-align: left; }
  .fig--wide { margin-inline: 0; }
}
@media (max-width: 520px) {
  .site-header { flex-direction: column; gap: 12px; }
  .fig figcaption { grid-template-columns: 1fr; }
  .review-note { grid-column: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .js .line, .js .statement, .js .media__bar { animation: none !important; }
  .js .media img, .js .fig.reveal { transition: none !important; opacity: 1 !important; transform: none !important; }
  .card a:hover .media img { transform: none; }
}

/* ---------------- Site draft additions ---------------- */
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.site-footer { flex-wrap: wrap; gap: 12px 32px; }
.site-footer__links { display: flex; gap: 24px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--ink); }
.more { color: var(--ink); text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 4px; }
.more::after { content: "\00a0\2192"; }
.more:hover { text-decoration-color: var(--ink); }
.section-head .more { font-size: .9375rem; }
.section { margin-bottom: var(--space-section); }

/* Prose from Markdown */
.prose p { margin: 0 0 1em; max-width: 68ch; }
.prose p:last-child { margin-bottom: 0; }
.prose ul, .prose ol { margin: 0 0 1em; padding-left: 1.2em; max-width: 66ch; }
.prose li { margin-bottom: .45em; }
.prose li::marker { color: var(--muted); }
.prose strong { font-weight: 600; }
.prose blockquote { margin: 1.25em 0; padding-left: 20px; border-left: 1px solid var(--ink); font: var(--display-weight) 1.125rem/1.5 var(--font-display); letter-spacing: var(--display-track); max-width: 60ch; }
.prose a { color: inherit; text-underline-offset: 3px; }
.prose code { font: inherit; }
.prose table { border-collapse: collapse; font-size: .9375rem; margin: 0 0 1em; }
.prose th, .prose td { text-align: left; padding: 8px 16px 8px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.prose th { font-weight: 400; color: var(--muted); }
.prose h4 { font: 600 1rem/1.4 var(--font-body); margin: 1.5em 0 .5em; }

/* Page heads */
.page-head { padding: clamp(48px, 10vh, 120px) 0 clamp(48px, 8vh, 96px); }
.page-title { font: var(--display-weight) clamp(2rem, 4vw, 3.5rem)/1.08 var(--font-display); letter-spacing: var(--display-track); margin: 14px 0 28px; max-width: 22ch; }
.lead { font-size: 1.1875rem; line-height: 1.55; max-width: 62ch; }
.lead p { max-width: none; }

/* Study header */
.study { border-top: 0; padding-top: clamp(32px, 6vh, 72px); }
.study__head { margin-bottom: clamp(40px, 6vh, 72px); }
.study__head .eyebrow { margin: 0; }
.study__title { margin-bottom: 28px; }
.tags { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { font-size: .8125rem; color: var(--muted); border: 1px solid var(--rule); border-radius: 999px; padding: 3px 12px; }
.context-note { margin: 20px 0 0; font-size: .9375rem; color: var(--muted); max-width: 68ch; }
.meta--study { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px var(--gap); margin-top: clamp(40px, 6vh, 64px); }
.meta--study dd p { margin: 0; }

/* At a glance */
.glance ol { list-style: none; margin: 0 0 clamp(48px, 7vh, 88px); padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--gap); }
.glance li { border-top: 1px solid var(--ink); padding-top: 14px; }
.glance h3 { font: var(--display-weight) 1.125rem/1.3 var(--font-display); letter-spacing: var(--display-track); margin: 8px 0 8px; }
.glance .prose { font-size: .9375rem; line-height: 1.5; }
.glance .prose ul { padding-left: 1em; }
.outcome__text p { max-width: 48ch; }
.outcome__text ul { font: 400 1rem/1.5 var(--font-body); letter-spacing: 0; }

/* Study footer nav */
.study-nav { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap); border-top: 1px solid var(--ink); margin-top: var(--space-section); padding-top: 16px; }
.study-nav a { text-decoration: none; display: grid; gap: 4px; }
.study-nav__next { text-align: right; }
.study-nav__t { font: var(--display-weight) 1.375rem/1.25 var(--font-display); letter-spacing: var(--display-track); }
.study-nav a:hover .study-nav__t { text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.study-back { margin: 24px 0 0; }

/* Cards: angle line */
.card__angle { display: block; margin-top: 6px; font-size: .9375rem; line-height: 1.45; color: var(--ink); }
.card__tags { margin-top: 10px; }
.card[hidden] { display: none; }
.filters[hidden] { display: none; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 40px; }
.filters button { font: inherit; font-size: .875rem; background: transparent; color: var(--muted); border: 1px solid var(--rule); border-radius: 999px; padding: 6px 14px; cursor: pointer; }
.filters button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.cards--archive { margin-bottom: 0; }
.card--archive .media img { object-position: center; }
.card--archive a:hover .card__title { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.card__desc { display: block; margin-top: 10px; font-size: .9375rem; line-height: 1.5; }
.card__desc p { margin: 0 0 .6em; }

/* Editorial work list: one study per row */
.filters-bar { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin: 0 0 20px; }
.filters-bar .filters { margin: 0; }
.filters__count { margin: 0; font-size: .875rem; }
.work-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.work-item { border-bottom: 1px solid var(--rule); }
.work-item[hidden] { display: none; }
.work-item a { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(24px, 4vw, 64px); align-items: center; padding: clamp(20px, 2.4vw, 32px) 0; text-decoration: none; }
.work-item__media .media { aspect-ratio: 3 / 2; }
.work-item__media .media img { transition: opacity .7s var(--ease), transform .9s var(--ease); }
.work-item a:hover .media img { transform: scale(1.015); }
.work-item__body { display: grid; gap: 10px; align-content: center; max-width: 52ch; }
.work-item__meta, .work-item__tags { font-size: var(--label-size); letter-spacing: var(--label-track); text-transform: var(--label-case); color: var(--muted); }
.work-item__title { display: flex; align-items: baseline; gap: 12px; font: var(--display-weight) clamp(1.375rem, 2.2vw, 1.875rem)/1.2 var(--font-display); letter-spacing: var(--display-track); }
.work-item a:hover .work-item__title { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 5px; }
.work-item__angle { font-size: 1.0625rem; line-height: 1.5; }

/* Home pillars and strip */
.pillars { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--gap) clamp(24px, 3vw, 48px); align-items: start; }
.pillars__find { grid-column: span 2; }

.pillars__find .prose p { max-width: 64ch; }
.pillars__stack { display: grid; gap: 32px; }
.pillar { border-top: 1px solid var(--rule); padding-top: 14px; }
.pillars h3 { font: var(--display-weight) 1.25rem/1.25 var(--font-display); letter-spacing: var(--display-track); margin: 0 0 10px; }
.pillars .prose { font-size: .9375rem; line-height: 1.55; }
.strip { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
.strip a { text-decoration: none; display: grid; gap: 8px; font-size: .8125rem; color: var(--muted); }
.strip .media { aspect-ratio: 1 / 1; }
.chapter--home { margin-top: 0; margin-bottom: var(--space-section); }

/* About */
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { display: grid; grid-template-columns: 9rem 1fr 1fr; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--rule); font-size: .9375rem; }
.link-list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 28px; }

/* Lab */
.lab-list { list-style: none; margin: 0 0 var(--space-section); padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(40px, 5vw, 72px) var(--gap); }
.lab-list li { border-top: 1px solid var(--ink); padding-top: 14px; }
.lab-list h2 { font: var(--display-weight) 1.5rem/1.2 var(--font-display); letter-spacing: var(--display-track); margin: 8px 0 6px; }
.lab__status { font-size: .8125rem; color: var(--muted); margin: 0 0 14px; }

/* Forms */
.form { display: grid; gap: 18px; max-width: 560px; }
.form label { display: grid; gap: 6px; font-size: .875rem; color: var(--muted); }
.form input, .form textarea { font: inherit; font-size: 1rem; color: var(--ink); background: #fff; border: 1px solid var(--rule); border-radius: 2px; padding: 11px 12px; }
.form input:focus-visible, .form textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--ink); }
.form__note, .form__hint { margin: 0; font-size: .8125rem; }
.button { font: inherit; justify-self: start; background: var(--ink); color: var(--bg); border: 0; border-radius: 999px; padding: 11px 22px; cursor: pointer; }
.button[disabled] { opacity: .45; cursor: not-allowed; }
.hp { position: absolute; left: -9999px; }
.form--unlock { margin-bottom: var(--space-section); }

@media (max-width: 1099px) {
  .glance ol, .pillars { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 32px; }
  .pillars__find { grid-column: 1 / -1; }
  .strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 759px) {
  .glance ol, .pillars, .lab-list, .meta--study { grid-template-columns: 1fr; }
  .pillars__find .prose { column-count: 1; }
  .work-item a { grid-template-columns: 1fr; gap: 16px; }
    .timeline li { grid-template-columns: 1fr; gap: 2px; }
  .study-nav { grid-template-columns: 1fr; }
  .study-nav__next { text-align: left; }
  .lead { font-size: 1.0625rem; }
}
/* Simple pages (About, Contact): tighter rhythm after the page head */
.page-head ~ .chapter { margin-top: clamp(48px, 5vw, 80px); }
.page-head + .chapter { margin-top: 0; }

.sequence ol:has(> li:nth-child(4)) { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 959px) { .sequence ol:has(> li:nth-child(4)) { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .sequence ol:has(> li:nth-child(4)) { grid-template-columns: 1fr; } }

/* At-a-glance cards: subtle surface to chunk the text */
.glance ol { gap: 12px; }
.glance li { background: var(--surface); border-top: 0; padding: 20px 22px 24px; }
.glance li .pipe__n { display: block; border-bottom: 1px solid var(--rule); padding-bottom: 10px; }

/* Continuation of a chapter after an inline figure */
.chapter--cont { border-top: 0; padding-top: 0; margin-top: 0; }
.study > .fig + .chapter--cont, .study > .pair + .chapter--cont, .study > .sequence + .chapter--cont { margin-top: 0; }

/* Inline figures: same left edge and max width as the text column */
.chapter__body > .fig, .chapter__body > .pair { max-width: 68ch; margin: clamp(28px, 3vw, 40px) 0; }
.chapter__body > :first-child { margin-top: 0; }
.chapter__body > :last-child { margin-bottom: 0; }
.chapter__body .fig ol, .chapter__body .fig ul { padding: 0; margin: 0; max-width: none; list-style: none; }
.chapter__body .fig li { margin: 0; }
.chapter__body .fig p { max-width: none; }
.chapter__body .pair { grid-template-columns: 1fr 1fr; align-items: start; }
.chapter__body .pair > .fig { margin: 0; }
.chapter__body .pipe { padding: clamp(18px, 2.4vw, 28px); }
.chapter__body .pipe ol { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0 14px; }
.chapter__body .pipe li { padding-right: 0; }
.chapter__body .pipe h4 { font-size: .9375rem; }
.chapter__body .pipe p { font-size: .8125rem; }
@media (max-width: 1099px) {
  .chapter__body .pipe ol { grid-template-columns: 1fr; gap: 18px; }
  .chapter__body .pipe li { border-top: 0; border-left: 1px solid var(--ink); padding: 0 0 0 18px; }
  .chapter__body .pipe li::after { top: 0; left: -4px; }
}
.chapter__body .pipe__end--out { text-align: left; }
.chapter__body .video { max-width: 68ch; }
@media (max-width: 759px) { .chapter__body .pair { grid-template-columns: 1fr; } }

.study > .sequence { margin-top: clamp(32px, 4vw, 56px); }
.study > .sequence + .chapter--cont { margin-top: 0; }

.video__frame video { display: block; width: 100%; height: auto; aspect-ratio: var(--ar); background: var(--surface); }

/* Go deeper: videos expand and play in place; reports open in a new tab */
.deeper li { display: block; padding: 0; }
.deeper__item { display: grid; grid-template-columns: 1fr auto; gap: 4px 16px; padding: 16px 0; color: inherit; text-decoration: none; }
.deeper details > summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 1fr auto; gap: 4px 16px; }
.deeper details > summary::-webkit-details-marker { display: none; }
.deeper details { padding: 16px 0; display: block; }
.deeper details > summary .deeper__meta::before { content: "\25B6\00a0"; font-size: .7em; }
.deeper details[open] > summary .deeper__meta::before { content: "\25BC\00a0"; }
.deeper summary:hover .deeper__title, .deeper__link:hover .deeper__title { text-decoration-color: var(--ink); }
.deeper__player { margin-top: 16px; max-width: 68ch; }
.deeper__player video { display: block; width: 100%; height: auto; background: var(--surface); }

/* Every single figure sits on the subtle surface so stacked figures read as separate units */
.study .fig:not(.sequence):not(.pipe):not(.video):not(.zoom) { background: var(--surface); padding: clamp(14px, 1.6vw, 20px); }
.study .fig:not(.sequence):not(.pipe):not(.video):not(.zoom) > .media { box-shadow: 0 0 0 1px rgb(0 0 0 / .06); }
.study .fig:not(.sequence):not(.pipe):not(.video):not(.zoom) figcaption { border-top: 0; margin-top: 12px; padding-top: 0; }
.study .video { background: var(--surface); padding: clamp(14px, 1.6vw, 20px); }
.study .video figcaption { border-top: 0; margin-top: 12px; padding-top: 0; }
.chapter__body .pair { gap: 12px; }

.study .zoom { background: var(--surface); padding: clamp(14px, 1.6vw, 20px); gap: 12px; }
.study .zoom figcaption { border-top: 0; margin-top: 4px; padding-top: 0; }

/* Sequences: one panel holds the frames and the figure caption */
.sequence { background: var(--surface); padding: clamp(20px, 3vw, 40px); }
.sequence ol { background: none; padding: 0; }
.sequence > figcaption { border-top: 0; margin-top: clamp(16px, 2vw, 24px); padding-top: 0; }

@media (min-width: 521px) { .sequence ol:has(> li:nth-child(2):last-child) { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* Work: call-out to earlier brand and design work */
.callout { margin-top: clamp(72px, 10vw, 140px); }
.callout__lead { margin: 0 0 32px; max-width: 62ch; }
.callout .strip .media { aspect-ratio: 3 / 2; }
.strip .media img { object-position: center; transition: opacity .7s var(--ease), transform .9s var(--ease); }
.strip a:hover .media img { transform: scale(1.03); }
.strip a:hover span:last-child { color: var(--ink); }

/* Earlier-work feature pages: brief header, then the visuals */
.study--archive .study__title { margin-bottom: 20px; }
.study--archive .outcome { margin-top: 0; }
.study--archive > .fig { margin-bottom: clamp(32px, 4vw, 56px); }

/* Silent loops: autoplay in view, with a pause control */
.loop__toggle { position: absolute; right: 12px; bottom: 12px; font: inherit; font-size: .8125rem; padding: 6px 14px; border: 0; border-radius: 999px; background: rgb(251 250 247 / .92); color: var(--ink); cursor: pointer; box-shadow: 0 1px 8px rgb(0 0 0 / .12); }
.loop__toggle[hidden] { display: none; }
@media (prefers-reduced-motion: reduce) { .strip a:hover .media img { transform: none; } }