/* Public UI revision. Tokens remain in tokens.css; these are composition/state rules.
   Header, discovery, collection and reading layouts have intentionally distinct rhythm. */
:root { --ink: #0d0d0d; --muted: #686868; --surface: #f7f7f7; --nav-duration: 180ms; }
:root[data-theme=dark] { --ink: #f9f9f9; --muted: #b0b0b0; --surface:#232323; }
.brand {font-size:24px;letter-spacing:-1px;font-weight:600}
.header {z-index:60}
.header-inner {gap:36px}
.desktop-nav {overflow:visible;gap:28px}
.header-actions {gap:12px}
.header-cta {min-height:36px;padding:9px 18px;gap:8px}
.header-cta .icon {width:14px;height:14px}
.header .icon-button {width:36px;height:36px}
.desktop-nav>a,.nav-group>summary {font-size:14px;line-height:20px;font-weight:400}
.nav-group>summary {cursor:pointer;list-style:none;display:flex;align-items:center;gap:4px;padding:20px 0;min-height:64px;transition:color var(--nav-duration)}
.nav-group>summary::-webkit-details-marker {display:none}
.nav-group>summary:hover,.nav-group[open]>summary,.nav-group>summary.is-current {color:var(--muted)}
.nav-chevron {display:none}
.nav-panel {position:absolute;inset-inline:0;top:100%;background:var(--bg);border-bottom:1px solid var(--line);padding:48px max(32px,calc((100vw - 1200px)/2)) 56px;display:grid;grid-template-columns:1fr 1.5fr;gap:100px;max-height:calc(100dvh - 64px);overflow-y:auto;box-shadow:0 20px 32px -32px #0006}
.nav-panel-intro {max-width:22rem;display:flex;flex-direction:column;gap:24px;align-items:flex-start}
.nav-panel-intro>p:nth-child(2) {text-wrap:balance}
.nav-panel-links {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 40px;align-content:start}
.nav-panel-links a {display:grid;grid-template-columns:minmax(0,1fr) 18px;gap:8px 12px;font-size:17px;line-height:24px;padding:0!important;white-space:normal}
.nav-panel-links a>span:last-of-type {grid-column:1/-1;grid-row:2;font-size:14px;line-height:22px}
.nav-panel-links a>.icon {grid-column:2;grid-row:1;width:16px;height:16px;align-self:center;transition:transform 180ms ease}
.nav-panel-links a:hover>.icon {transform:translateX(3px)}
.nav-shade {position:fixed;inset:var(--header) 0 0;z-index:50;border:0;background:#0002;width:100%;height:calc(100dvh - var(--header));cursor:default}
/* Native search dialog: top-level control, not a fake chat input. */
.site-dialog {border-radius:12px;width:min(800px,calc(100vw - 32px));padding:32px;margin:12vh auto auto;max-height:78dvh}
.site-dialog .dialog-heading {margin-bottom:32px}
.overlay-search {display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--line);padding:0 0 20px}
.overlay-search>.icon {color:var(--muted);width:24px;height:24px}
.overlay-search input {border:0;background:none;min-width:0;flex:1;font-size:24px;line-height:32px;letter-spacing:-.5px;padding:0}
.overlay-search input:focus {outline:none}
.overlay-search:focus-within {border-color:var(--ink)}
.search-suggestions {display:flex;flex-direction:column;align-items:stretch;gap:2px;padding-top:32px}
.search-suggestions>p {margin-bottom:14px}
.search-suggestions>a {display:flex;justify-content:space-between;align-items:center;padding:12px 0;font-size:17px;line-height:24px}
.search-suggestions>a:hover {color:var(--muted)}
.search-suggestions .icon {width:16px;height:16px}
.site-dialog .search-hint {margin-top:32px;font-size:12px}
kbd {font:inherit;border:1px solid var(--line);padding:2px 5px;border-radius:3px;margin-right:6px}
.mobile-dialog {padding:16px 24px 32px}
.mobile-dialog>.dialog-heading {margin-bottom:52px}
.mobile-dialog nav {gap:0}
.mobile-dialog nav a {padding:16px 0;font-size:28px;line-height:36px;letter-spacing:-.5px}
.mobile-dialog nav .icon {width:18px;height:18px;color:var(--muted)}
.mobile-nav-bottom {display:flex;align-items:center;flex-wrap:wrap;gap:20px;margin-top:48px;padding-top:24px;border-top:1px solid var(--line)}
/* Discovery shell: restrained title; the search box and subject links do the work. */
.home-page {padding-top:0;gap:80px}
.discovery {height:clamp(400px,calc(80svh - var(--header) - 40px),620px);display:flex;align-items:center;justify-content:center;flex:none}
.discovery-inner {width:100%;display:flex;flex-direction:column;align-items:center}
.discovery h1 {font-size:28px;line-height:34px;font-weight:600;letter-spacing:.1px;margin-bottom:26px;text-align:center}
.discovery-form {position:relative;width:100%;max-width:48rem;height:106px;border-radius:24px;border:1px solid var(--line);background:var(--bg);box-shadow:0 2px 3px #00000003,0 8px 36px #00000005;display:flex;align-items:flex-start;padding:16px;transition:box-shadow 180ms}
.discovery-form:focus-within {box-shadow:0 0 0 1px var(--ink),0 8px 36px #00000005}
.discovery-form input {width:100%;min-width:0;padding:0 40px 0 0;border:0;background:none;font-size:16px;line-height:26px;outline:none}
.discovery-form input::placeholder {color:var(--muted);opacity:1}
.discovery-submit {position:absolute;right:14px;bottom:12px;display:flex;align-items:center;justify-content:center;border:0;background:var(--ink);color:var(--bg);width:36px;height:36px;border-radius:50%;transition:opacity 180ms}
.discovery-submit:hover {opacity:.72}
.discovery-submit .icon {width:21px;height:21px;stroke-width:2}
.discovery-topics {display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:24px}
.discovery-topics a {font-size:14px;line-height:20px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:9px 14px;transition:background-color 180ms,color 180ms}
.discovery-topics a:hover {background:var(--subtle);color:var(--ink)}
/* The archive is denser than a landing page, with independently controlled card rhythm. */
.journal-page {padding-top:90px}
.journal-header {margin-bottom:56px}
.journal-header .type-h1 {letter-spacing:var(--type-h1-track)}
.journal-header .hero-summary {margin-top:20px;max-width:40rem;color:var(--muted)}
.category-nav {gap:4px;margin-bottom:24px}
.category-nav a {padding:10px 16px;line-height:20px;font-size:14px}
.category-nav a:first-child {margin-left:-16px}
.category-nav a.selected:first-child {margin-left:0}
.archive-controls {border-top:0;border-bottom:1px solid var(--line);padding:0 0 18px;gap:16px}
.archive-search {max-width:28rem}
.archive-search input {font-size:14px}
.archive-search button {font-size:13px}
.archive-sort {margin-left:auto;gap:6px}
.archive-sort select {font-size:13px}
.archive-sort>label {font-size:13px}
.media-toggle {font-size:13px;white-space:nowrap}
.view-switch {gap:0}
.view-switch .icon-button {width:36px;height:36px}
.results-meta {padding:18px 0 30px;font-size:12px;line-height:18px}
.card-grid.four {column-gap:24px;row-gap:52px}
.card-copy {padding-top:16px}
.card-copy :is(h2,h3) {font-size:var(--type-h5-size);line-height:var(--type-h5-line);letter-spacing:var(--type-h5-track);font-weight:var(--type-h5-weight);margin-bottom:14px;text-wrap:pretty}
.card-copy .meta {font-size:13px;line-height:20px;gap:6px 10px}
.journal-results .media {aspect-ratio:1}
.journal-results .story-card {display:flex;flex-direction:column}
.journal-results .story-link {height:100%}
.journal-results .card-copy {min-height:100px}
.journal-results.images-hidden .media {display:none}
.journal-results.images-hidden .story-card {border-top:1px solid var(--line)}
.journal-results.images-hidden .card-copy {padding-top:24px;padding-bottom:24px}
.journal-results.images-hidden.list-view .story-link {grid-template-columns:minmax(0,1fr)}
.journal-results.list-view .card-copy {min-height:0}
.journal-results.list-view .media {width:108px;height:108px}
.journal-results.list-view .story-link {grid-template-columns:108px minmax(0,1fr);padding-block:24px;gap:32px}
.journal-results.list-view .card-copy :is(h2,h3) {font-size:var(--type-h4-size);line-height:var(--type-h4-line)}
.pagination {margin-top:56px}
.section-heading>.type-h4 {font-weight:500}
.media {isolation:isolate}
.media img {transition:transform 450ms cubic-bezier(.2,.65,.3,1)}
a:hover>.media img {transform:scale(1.015)}
a:focus-visible>.media {outline:2px solid var(--focus);outline-offset:3px}
.featured-lead .lead-caption {padding-top:22px}
.featured-lead .lead-caption>h2 {max-width:48rem;margin-bottom:18px}
.home-page .side-stack {gap:64px}
.side-card .card-copy :is(h2,h3) {line-height:var(--type-h5-line)}
/* Reading page: title, summary, author line and body each have a defined measure. */
.article-page {padding-top:30px}
.breadcrumbs {margin-bottom:72px;font-size:13px}
.article-meta {margin-bottom:32px;gap:20px}
.article-header {margin-bottom:48px}
.article-header .type-h1 {max-width:54rem;margin:auto;white-space:normal}
.article-summary {font-size:17px;line-height:28px;max-width:38rem;margin-top:28px}
.article-tools {border-top:0;padding-top:0;min-height:42px;margin-bottom:40px}
.article-byline {display:flex;flex-direction:column;gap:4px}
.article-tools .text-link {font-size:13px}
.toc-rail {font-size:13px;line-height:20px;padding-right:16px}
.toc-rail>p {font-size:12px;margin-bottom:20px;color:var(--muted)}
.toc-rail nav {gap:0;border-left:1px solid var(--line)}
.toc-rail a {padding:8px 0 8px 16px;border-left:1px solid transparent;margin-left:-1px;line-height:20px}
.toc-rail a.active {border-left-color:var(--ink)}
.toc-rail .toc-sub {padding-left:28px}
.article-end {margin-top:64px}
.related {margin-top:120px}
/* Page composition remains data-driven. Product imagery uses the real editor, not a mock app. */
.editorial-page .hero {padding-top:32px}
.editorial-page .hero h1 {max-width:52rem;white-space:pre-line}
.editorial-page .hero-summary {max-width:37rem}
.page-studio .page-flow {gap:80px}
.page-studio .hero h1 {max-width:45rem}
.page-studio .hero-summary {max-width:32rem}
.page-studio .full-figure:first-of-type {padding:54px 7%;background:var(--surface);border-radius:var(--radius)}
.page-studio .full-figure:first-of-type .media {aspect-ratio:1.45;box-shadow:0 4px 24px #0000000d;border:1px solid var(--line)}
.page-studio .full-figure:first-of-type img {object-fit:cover;object-position:top}
.page-studio .full-figure:first-of-type figcaption {margin-top:24px;text-align:center}
.split-section {gap:48px}
.split-copy .type-h2 {max-width:30rem}
.split-copy .prose {max-width:30rem}
.callout {padding:104px 32px}
.callout h2 {max-width:44rem;text-wrap:balance}
.footer {margin-top:120px}
.footer-top {padding-top:56px}
.footer-links {font-size:14px;line-height:20px;gap:64px}
.footer-top>div:first-child>p {font-size:14px;line-height:24px;max-width:21rem}
.footer-bottom {font-size:12px;margin-top:80px}
@media(min-width:48rem) { .home-page{gap:96px} }
@container(min-width:44rem) {
 .home-page{gap:120px}
 .collection-auto{grid-template-columns:repeat(var(--collection-columns,3),minmax(0,1fr))}
 .home-page .discovery{margin-bottom:-56px}
 .journal-results.four{grid-template-columns:repeat(3,minmax(0,1fr))}
 .article-header .title-span{grid-column:2/span 10}
 .article-page .read-span{grid-column:3/span 8}
}
@container(min-width:60rem) {
 .journal-results.four{grid-template-columns:repeat(4,minmax(0,1fr))}
 .article-header .title-span{grid-column:3/span 8}
 .article-page .read-span{grid-column:4/span 6}
 .journal-results.list-view{grid-template-columns:minmax(0,1fr)}
 .split-section {gap:64px}
}
@media(max-width:63.749rem) { .nav-shade{display:none!important} .header-cta{display:none} }
@media(max-width:47.999rem) {
 .header-inner{gap:20px}.brand{font-size:23px}
 .home-page{padding-top:0;gap:64px}
 .discovery{height:clamp(470px,calc(80svh - var(--header)),620px)}
 .discovery h1{font-size:25px;line-height:32px;letter-spacing:0;max-width:19rem;margin-bottom:26px}
 .discovery-form{height:108px;border-radius:22px}
 .discovery-form input{font-size:16px}
 .discovery-topics{gap:8px;max-width:330px;margin-top:24px}
 .discovery-topics a{font-size:13px;padding:9px 12px}
 .featured-lead .lead-caption{padding-top:20px}.featured-lead .lead-caption h2{font-size:32px;line-height:36px;letter-spacing:-.96px}
 .home-page .side-stack{padding-inline:20px;gap:48px}
 .journal-page{padding-top:52px}.journal-header{margin-bottom:40px}
 .journal-header .hero-summary{font-size:16px;line-height:25px;margin-top:20px;max-width:19rem}
 .category-nav{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-right:calc(-1*var(--gutter));padding-right:var(--gutter);padding-bottom:4px;gap:4px}
 .category-nav::-webkit-scrollbar{display:none}.category-nav a{flex:none;white-space:nowrap;font-size:13px;padding:9px 13px;max-width:none}
 .category-nav a:first-child{margin-left:0}
 .archive-controls{gap:10px 12px;padding-bottom:12px}.archive-search{max-width:none;flex-basis:100%;border-bottom:1px solid var(--subtle);padding-bottom:8px}
 .archive-sort{margin-left:0}.archive-sort select{max-width:115px;font-size:12px}.archive-sort>label{font-size:12px}.media-toggle{font-size:12px;margin-left:auto}
 .view-switch{gap:0}.view-switch .icon-button{width:30px;height:34px}
 .results-meta{padding-block:16px 24px}
 .journal-results.four{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 16px}
 .journal-results .card-copy{padding-top:12px;min-height:0}.journal-results .card-copy :is(h2,h3){font-size:16px;line-height:22px;margin-bottom:12px}
 .journal-results .card-copy .meta{font-size:11px;line-height:17px;gap:2px 8px}
 .journal-results.list-view{grid-template-columns:minmax(0,1fr)}
 .journal-results.list-view .story-link{grid-template-columns:76px minmax(0,1fr);gap:20px;padding-block:20px}
 .journal-results.list-view .media{width:76px;height:76px}
 .journal-results.list-view .card-copy :is(h2,h3){font-size:17px;line-height:23px}
 .article-page{padding-top:24px}.breadcrumbs{margin-bottom:48px;font-size:12px}
 .article-meta{font-size:12px;gap:16px;margin-bottom:28px}
 .article-summary{font-size:16px;line-height:26px;margin-top:24px}
 .article-header{margin-bottom:36px}.article-tools{margin-bottom:28px}
 .article-byline{gap:3px}.article-tools .meta{font-size:12px}
 .mobile-toc{font-size:13px;padding-block:12px 16px;border-top:1px solid var(--line);margin-bottom:32px}
 .prose p{font-size:17px;line-height:28px}
 .prose h2{margin-top:40px}
 .related{margin-top:80px}.related .card-grid{gap:32px 16px}
 .related .card-copy :is(h2,h3){font-size:16px;line-height:22px}
 .related .card-copy .meta{font-size:11px;line-height:17px}
 .editorial-page .hero{padding-top:0}.editorial-page .eyebrow{margin-bottom:24px}
 .editorial-page .page-flow{gap:64px}.editorial-page .hero-summary{font-size:16px;line-height:26px}
 .page-studio .full-figure:first-of-type{padding:24px 16px}.page-studio .full-figure:first-of-type .media{aspect-ratio:1.05}
 .page-studio .full-figure:first-of-type figcaption{font-size:12px;line-height:19px;margin-top:20px}
 .callout{padding:64px 24px}.callout h2{font-size:30px;line-height:36px}
 .footer{margin-top:80px}.footer-top{padding-top:40px}.footer-links{gap:36px}.footer-bottom{gap:16px;margin-top:56px;font-size:11px}
 .site-dialog{padding:24px;margin-top:8vh}.overlay-search{gap:12px}.overlay-search input{font-size:20px;line-height:28px}
 .search-suggestions{padding-top:24px}
}
@media(prefers-reduced-motion:reduce) { .media img{transition:none}a:hover>.media img{transform:none} }

/* ---- Editorial revision 2026-09-16: motion covers, news rows, composed sections, footer directory ---- */
.has-motion{position:relative}
.has-motion video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.motion-toggle{position:absolute;left:16px;bottom:16px;width:44px;height:44px;border-radius:50%;border:0;background:#0009;color:#fff;display:grid;place-items:center;cursor:pointer;opacity:0;transition:opacity 200ms linear}
.motion-toggle .icon{width:18px;height:18px}
.has-motion:hover .motion-toggle,.motion-toggle:focus-visible,.motion-toggle[aria-pressed=true]{opacity:1}
.motion-toggle .when-paused,.motion-toggle[aria-pressed=true] .when-playing{display:none}
.motion-toggle[aria-pressed=true] .when-paused{display:block}
@media(prefers-reduced-motion:reduce){.has-motion video[data-autoplay]{display:none}.motion-toggle{display:none}}
.news-list{display:grid;grid-template-columns:minmax(0,1fr);gap:32px 48px}
.row-card{border-bottom:0}
.row-card .story-link{display:grid;grid-template-columns:9rem minmax(0,1fr);gap:24px;align-items:center}
.row-card .media.thumb{aspect-ratio:1;width:100%}
.row-card .card-copy{padding:0}
.row-card .card-copy :is(h2,h3){margin-bottom:12px;font-size:var(--type-h5-size);line-height:var(--type-h5-line)}
@media(min-width:48rem){.news-list{grid-template-columns:repeat(2,minmax(0,1fr))}.row-card .story-link{grid-template-columns:12rem minmax(0,1fr);gap:32px}}
.article-section{margin-block:48px}
@media(min-width:63.75rem){.article-section:has(.compare,.testimonials,.full-figure){position:relative;z-index:1;background:var(--bg);width:calc(200% + var(--grid-gap));margin-left:calc(-50% - var(--grid-gap)/2);padding-block:8px}}
.article-section .compare,.article-section .testimonials{max-width:none}
.article-end-panel{width:100%;background:var(--surface);border-radius:var(--radius);padding:40px 32px;display:flex;flex-direction:column;gap:40px}
.article-end-panel .tag-list a{background:var(--line)}
.article-end-panel .author-note{border:0;padding:0}
.article-end-panel .author-note p+p{font-size:16px;line-height:24px;margin-top:8px}
/* Compare: CSS-selected tab, JavaScript syncs the two clips and draws one transport bar. */
.compare{display:grid;gap:28px}
.compare-title{text-align:center}
.compare-tabs{justify-self:center;display:inline-flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:100px;max-width:100%;overflow-x:auto}
.compare-tab{padding:10px 22px;border-radius:100px;font-size:15px;line-height:20px;white-space:nowrap;cursor:pointer;transition:background 200ms linear}
.compare-tab:hover{background:var(--subtle)}
.compare-choice:focus-visible+.compare-tab{outline:2px solid var(--focus);outline-offset:2px}
.compare-panel{display:none;gap:16px}
.compare-stage{position:relative;display:grid;grid-template-columns:1fr 1fr;background:var(--surface);border-radius:var(--radius);overflow:hidden}
.compare-cell{position:relative;border-right:1px solid var(--line)}
.compare-cell:last-of-type{border-right:0}
.compare-cell video{width:100%;object-fit:cover;display:block}
.compare-cell{display:grid;grid-template-rows:auto minmax(0,1fr)}
.compare-head{display:grid;gap:2px;padding:14px 16px;font-size:14px;line-height:18px;background:var(--surface)}
.compare-cell .compare-video{position:relative;inset:auto;aspect-ratio:1;height:auto}
.compare-name{font-size:18px;line-height:22px}
.compare-meta{font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
.compare-controls{position:absolute;inset:auto 0 0;z-index:1;display:flex;align-items:center;gap:16px;padding:16px 20px;color:#fff;background:linear-gradient(transparent,#0007)}
.compare-controls button{border:0;background:none;color:inherit;cursor:pointer;display:grid;place-items:center;width:32px;height:32px}
.compare-toggle .when-paused,.compare-toggle[aria-pressed=true] .when-playing{display:none}
.compare-toggle[aria-pressed=true] .when-paused{display:block}
.compare-time{font-variant-numeric:tabular-nums;font-size:14px}
.compare-progress{flex:1;height:4px;border-radius:2px;background:#fff5;overflow:hidden;max-width:24rem;cursor:pointer}
.compare-progress span{display:block;height:100%;width:0;background:#fff}
.compare-expand{margin-left:auto}
.compare-footer{display:flex;justify-content:space-between;gap:16px;font-size:11px;letter-spacing:.04em;text-transform:uppercase;padding-inline:4px}
/* Testimonials: radio-selected card with a stepper; the tab strip mirrors the selection. */
.testimonials{display:grid;gap:32px}
.testimonials-title{text-align:center}
.testimonial-cards{display:grid}
.testimonial-card{display:none;position:relative;margin:0;border:1px solid var(--line);border-radius:var(--radius);padding:32px 32px 40px;background:var(--bg);gap:40px}
.testimonial-card::after{content:"";position:absolute;left:12%;bottom:-9px;width:16px;height:16px;background:var(--bg);border-right:1px solid var(--line);border-bottom:1px solid var(--line);transform:rotate(45deg)}
.testimonial-head{display:flex;justify-content:space-between;align-items:center;gap:16px}
.testimonial-name{display:inline-flex;align-items:center;gap:10px;font-size:22px;line-height:28px;font-weight:600;letter-spacing:-.02em}
.testimonial-name img{width:28px;height:28px;border-radius:6px}
.testimonial-count{display:inline-flex;align-items:center;gap:12px}
.testimonial-step{cursor:pointer;color:var(--ink);display:inline-grid;place-items:center}
.testimonial-card blockquote{margin:0;text-wrap:pretty;hanging-punctuation:first}
.testimonial-card figcaption{font-size:16px;line-height:24px}
.testimonial-tabs{display:flex;justify-content:space-around;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:16px}
.testimonial-tab{cursor:pointer;padding:8px 4px}
.testimonial-tab:hover{color:var(--ink)}
@media(min-width:48rem){.testimonial-card{padding:48px 56px 56px;gap:56px}.testimonial-card blockquote{font-size:24px;line-height:32px}}
/* Footer directory: link groups flow into columns like a site index. */
.footer-top{grid-template-columns:minmax(0,1fr)}
.footer-groups{columns:2;column-gap:32px;font-size:15px;line-height:22px}
.footer-group{break-inside:avoid;display:flex;flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:40px}
.footer-group>span{margin-bottom:4px}
.footer-group .icon{width:12px;height:12px;margin-left:2px;vertical-align:-1px}
.footer-bottom{gap:24px 32px}
.footer-social{display:flex;gap:20px;align-items:center}
.footer-social a{display:inline-grid;place-items:center;width:20px;height:20px}
.footer-tools{display:flex;align-items:center;gap:20px;margin-left:auto}
.footer-bottom>a{margin-left:0}
@media(min-width:48rem){.footer-groups{columns:3;column-gap:48px}}
@media(min-width:63.75rem){.footer-groups{columns:5;column-gap:56px}}
.compare:has(.compare-choice:nth-of-type(1):checked) .compare-panel[data-panel="1"]{display:grid}
.compare:has(.compare-choice:nth-of-type(1):checked) .compare-tab:nth-of-type(1){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(1):checked) .testimonial-card[data-panel="1"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(1):checked) .testimonial-tab:nth-of-type(1){color:var(--ink)}
.compare:has(.compare-choice:nth-of-type(2):checked) .compare-panel[data-panel="2"]{display:grid}
.compare:has(.compare-choice:nth-of-type(2):checked) .compare-tab:nth-of-type(2){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(2):checked) .testimonial-card[data-panel="2"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(2):checked) .testimonial-tab:nth-of-type(2){color:var(--ink)}
.compare:has(.compare-choice:nth-of-type(3):checked) .compare-panel[data-panel="3"]{display:grid}
.compare:has(.compare-choice:nth-of-type(3):checked) .compare-tab:nth-of-type(3){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(3):checked) .testimonial-card[data-panel="3"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(3):checked) .testimonial-tab:nth-of-type(3){color:var(--ink)}
.compare:has(.compare-choice:nth-of-type(4):checked) .compare-panel[data-panel="4"]{display:grid}
.compare:has(.compare-choice:nth-of-type(4):checked) .compare-tab:nth-of-type(4){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(4):checked) .testimonial-card[data-panel="4"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(4):checked) .testimonial-tab:nth-of-type(4){color:var(--ink)}
.compare:has(.compare-choice:nth-of-type(5):checked) .compare-panel[data-panel="5"]{display:grid}
.compare:has(.compare-choice:nth-of-type(5):checked) .compare-tab:nth-of-type(5){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(5):checked) .testimonial-card[data-panel="5"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(5):checked) .testimonial-tab:nth-of-type(5){color:var(--ink)}
.compare:has(.compare-choice:nth-of-type(6):checked) .compare-panel[data-panel="6"]{display:grid}
.compare:has(.compare-choice:nth-of-type(6):checked) .compare-tab:nth-of-type(6){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(6):checked) .testimonial-card[data-panel="6"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(6):checked) .testimonial-tab:nth-of-type(6){color:var(--ink)}
.compare:has(.compare-choice:nth-of-type(7):checked) .compare-panel[data-panel="7"]{display:grid}
.compare:has(.compare-choice:nth-of-type(7):checked) .compare-tab:nth-of-type(7){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(7):checked) .testimonial-card[data-panel="7"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(7):checked) .testimonial-tab:nth-of-type(7){color:var(--ink)}
.compare:has(.compare-choice:nth-of-type(8):checked) .compare-panel[data-panel="8"]{display:grid}
.compare:has(.compare-choice:nth-of-type(8):checked) .compare-tab:nth-of-type(8){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(8):checked) .testimonial-card[data-panel="8"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(8):checked) .testimonial-tab:nth-of-type(8){color:var(--ink)}
.compare:has(.compare-choice:nth-of-type(9):checked) .compare-panel[data-panel="9"]{display:grid}
.compare:has(.compare-choice:nth-of-type(9):checked) .compare-tab:nth-of-type(9){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(9):checked) .testimonial-card[data-panel="9"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(9):checked) .testimonial-tab:nth-of-type(9){color:var(--ink)}
.compare:has(.compare-choice:nth-of-type(10):checked) .compare-panel[data-panel="10"]{display:grid}
.compare:has(.compare-choice:nth-of-type(10):checked) .compare-tab:nth-of-type(10){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(10):checked) .testimonial-card[data-panel="10"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(10):checked) .testimonial-tab:nth-of-type(10){color:var(--ink)}
.compare:has(.compare-choice:nth-of-type(11):checked) .compare-panel[data-panel="11"]{display:grid}
.compare:has(.compare-choice:nth-of-type(11):checked) .compare-tab:nth-of-type(11){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(11):checked) .testimonial-card[data-panel="11"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(11):checked) .testimonial-tab:nth-of-type(11){color:var(--ink)}
.compare:has(.compare-choice:nth-of-type(12):checked) .compare-panel[data-panel="12"]{display:grid}
.compare:has(.compare-choice:nth-of-type(12):checked) .compare-tab:nth-of-type(12){background:var(--subtle)}
.testimonials:has(.testimonial-choice:nth-of-type(12):checked) .testimonial-card[data-panel="12"]{display:grid}
.testimonials:has(.testimonial-choice:nth-of-type(12):checked) .testimonial-tab:nth-of-type(12){color:var(--ink)}

/* ---- Measured against openai.com (2026-09-16, 1440px): header 64px, nav 13px/500 with 16px side padding and
   60% dimming of siblings, panel links 30px/500, body 17px/28px, meta 14px/500 with 60% dates, pill CTAs 14px/500 36px ---- */
:root{--header:4rem;--ink-60:rgba(0,0,0,.6);--ink-44:rgba(0,0,0,.44);--ink-12:rgba(0,0,0,.12);--ink-4:rgba(0,0,0,.04);--type-p1-size:1.0625rem;--type-p1-line:1.75rem;--type-p1-track:-.01em;--type-meta-size:.875rem;--type-meta-line:1.225rem;--type-meta-weight:500;--type-h1-weight:480;--type-h2-weight:480;--type-h3-weight:480;--type-h4-weight:500;--type-h5-weight:500;--nav-ease:cubic-bezier(.33,1,.68,1)}
:root[data-theme=dark]{--ink-60:rgba(255,255,255,.6);--ink-44:rgba(255,255,255,.44);--ink-12:rgba(255,255,255,.12);--ink-4:rgba(255,255,255,.06)}
@media(min-width:48rem){:root{--gutter:2rem}}
.muted{color:var(--ink-60)}
body{font-size:var(--type-p1-size);line-height:var(--type-p1-line);letter-spacing:var(--type-p1-track);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}  /* the reference sets antialiased; macOS subpixel rendering reads a half-weight heavier */
.header{height:var(--header);z-index:60}
.header-inner{gap:20px;padding-inline:var(--gutter)}
.brand{font-size:22px;letter-spacing:-.6px;font-weight:600}
.desktop-nav{gap:0;align-items:stretch;height:100%;overflow:visible}
.desktop-nav>a,.nav-group>summary{display:inline-flex;align-items:center;height:100%;padding:0 16px;min-height:0;font-size:.8125rem;line-height:1.23rem;font-weight:500;letter-spacing:0;color:var(--ink);transition:color 250ms var(--nav-ease)}
.desktop-nav>a:hover,.nav-group>summary:hover,.nav-group[open]>summary,.desktop-nav>a[aria-current]{color:var(--ink)}
.desktop-nav:has(>:is(a,details):hover,>details[open])>:is(a,details):not(:hover,[open])>*{color:var(--ink-60)}
.nav-group>summary.is-current{color:var(--ink)}
.desktop-nav .nav-search{width:40px;height:40px;align-self:center;color:var(--ink-60);margin-left:4px}
.desktop-nav .nav-search:hover{background:none;color:var(--ink)}
.nav-search .when-open,.nav-search[aria-expanded=true] .when-closed{display:none}
.nav-search[aria-expanded=true] .when-open{display:block}
.header-actions{gap:12px}
.pill-button{display:none;align-items:center;gap:6px;height:36px;padding:0 20px;border-radius:40px;background:var(--ink-4);color:var(--ink);font-size:.875rem;line-height:1;font-weight:500;transition:background-color 250ms var(--nav-ease)}
.pill-button:hover{background:var(--ink-12)}
.pill-button .icon{width:12px;height:12px}
.header-cta{min-height:36px;height:36px;padding:0 20px;gap:4px;font-size:.875rem;line-height:1;font-weight:500}
.header-cta .icon{width:12px;height:12px;stroke-width:2}
.mobile-search{display:inline-flex}
@media(min-width:63.75rem){.pill-button{display:inline-flex}.mobile-search{display:none}}
/* Panel: a full-width sheet under the header whose height eases open; siblings of the hovered item recede. */
.nav-panel{position:fixed;inset-inline:0;top:var(--header);height:0;overflow:hidden;background:var(--bg);border:0;padding:0;display:block;max-height:calc(100dvh - var(--header));transition:height 300ms var(--nav-ease)}
.nav-group[open]>.nav-panel{height:var(--panel-height,auto)}
.nav-panel-inner{max-width:90rem;margin:auto;padding:32px var(--gutter);display:flex;align-items:flex-start;gap:120px}
.nav-eyebrow{font-size:.8125rem;line-height:1.23rem;font-weight:500;color:var(--ink-60);margin:0 0 12px}
.nav-panel ul{list-style:none;margin:0;padding:0}
.nav-primary li{margin-bottom:12px}
.nav-primary a{font-size:var(--type-h3-size);line-height:var(--type-h3-line);letter-spacing:var(--type-h3-track);font-weight:500;transition:color 250ms var(--nav-ease);padding:0!important;display:inline-block}
.nav-primary a:hover{color:var(--ink-60)}
.nav-secondary li{margin-bottom:8px}
.nav-secondary a{font-size:.8125rem;line-height:1.05rem;font-weight:600;letter-spacing:-.01em;padding:0!important;display:inline-block;transition:color 250ms var(--nav-ease)}
.nav-secondary a:hover{color:var(--ink-60)}
.nav-shade{background:rgba(255,255,255,.35);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
:root[data-theme=dark] .nav-shade{background:rgba(0,0,0,.35)}
/* Search: same sheet, one large underlined field. */
.search-panel{position:fixed;inset-inline:0;top:var(--header);background:var(--bg);z-index:59;padding:80px var(--gutter) 96px;animation:panel-in 300ms var(--nav-ease)}
@keyframes panel-in{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.search-panel-form{position:relative;max-width:668px;margin:auto;border-bottom:1px solid var(--ink-12);padding-bottom:8px}
.search-panel-form input{width:100%;border:0;background:none;outline:none;padding:0 48px 0 0;font-size:var(--type-h3-size);line-height:var(--type-h3-line);letter-spacing:var(--type-h3-track);font-weight:500;color:var(--ink)}
.search-panel-form input::placeholder{color:var(--ink-60);opacity:1}
.search-panel-form input::-webkit-search-cancel-button{display:none}
.search-panel-submit{position:absolute;right:0;top:50%;transform:translateY(-60%);width:32px;height:32px;border-radius:50%;border:0;background:var(--ink-44);color:#fff;display:grid;place-items:center;cursor:pointer}
.search-panel-submit .icon{width:16px;height:16px;stroke-width:2}
.search-open .nav-shade{display:block!important}
/* Hero prompt box: exact shadow stack (soft 6px, wide 80px bloom, 1px ring) and rolling placeholder. */
.discovery h1{font-size:2rem;line-height:1.2;font-weight:500;letter-spacing:-.02em;margin-bottom:40px}
.discovery-form{max-width:768px;height:104px;border-radius:24px;border:0;padding:16px 52px 16px 16px;background:var(--bg);box-shadow:0 3px 6px rgba(0,0,0,.04),0 4px 80px 8px rgba(0,0,0,.04),0 0 1px rgba(0,0,0,.62);transition:box-shadow 250ms var(--nav-ease)}
.discovery-form:focus-within{box-shadow:0 3px 6px rgba(0,0,0,.06),0 4px 80px 8px rgba(0,0,0,.05),0 0 1px rgba(0,0,0,.9)}
:root[data-theme=dark] .discovery-form{box-shadow:0 0 0 1px var(--ink-12)}
.discovery-form input{font-size:1rem;line-height:1.5rem;letter-spacing:-.01em;padding:0;position:relative;z-index:1;background:transparent}
.discovery-form input[data-rolling]::placeholder{color:transparent}
.discovery-form input[data-rolling]:placeholder-shown~.discovery-submit{background:var(--ink-4);color:var(--ink-44)}
.prompt-roll{position:absolute;inset:16px 52px auto 16px;height:1.5rem;overflow:hidden;pointer-events:none;color:var(--ink-60);font-size:1rem;line-height:1.5rem;letter-spacing:-.01em}
.prompt-roll div:not(.prompt-roll-track){height:1.5rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;opacity:0;transition:opacity 500ms ease-in-out}
.prompt-roll div.is-current{opacity:1}
.discovery-form input::-webkit-search-cancel-button{display:none}
.prompt-roll-track{transition:transform 500ms ease-in-out}
.discovery-form.has-text .prompt-roll,.discovery-form:focus-within .prompt-roll{opacity:0}
.discovery-submit{right:12px;bottom:12px;width:36px;height:36px;background:var(--ink);color:var(--bg);transition:background-color 250ms var(--nav-ease),color 250ms var(--nav-ease)}
.discovery-submit .icon{width:16px;height:16px;stroke-width:2.2}
.discovery-topics{gap:8px;margin-top:24px}
.discovery-topics a{height:40px;display:inline-flex;align-items:center;padding:0 12px;font-size:.875rem;line-height:1;font-weight:500;color:var(--ink);border:1px solid var(--ink-12);box-shadow:0 4px 6px rgba(0,0,0,.02),0 0 2px rgba(0,0,0,.05);background:var(--bg)}
.discovery-topics a:hover{background:var(--ink-4)}
/* Cards and section heads. */
.section-heading>.type-h4,.section-heading>.type-h3{font-size:1.375rem;line-height:1.26;letter-spacing:-.01em;font-weight:500}
.section-heading .text-link{font-size:.875rem;font-weight:500}
.card-copy .meta,.lead-caption .meta{font-size:.875rem;line-height:1.225rem;font-weight:500;gap:8px 12px}
.card-copy .meta .muted,.lead-caption .meta .muted{color:var(--ink-60)}
.card-copy :is(h2,h3){font-weight:500}
/* Recent news rows, measured from the reference at 1440: 216px thumbnail, 36px to a 20px title, 24px to the meta line. */
.row-card .story-link{grid-template-columns:7.5rem minmax(0,1fr);gap:20px;align-items:center}
.row-card .media.thumb{border-radius:8px}
.row-card .card-copy :is(h2,h3){font-size:1.0625rem;line-height:1.4;margin-bottom:16px;max-width:26rem}
.row-card .card-copy .meta{gap:8px 16px}
.news-list{gap:24px}
@media(min-width:48rem){.news-list{gap:22px 24px}.row-card .story-link{grid-template-columns:12rem minmax(0,1fr);gap:32px}.row-card .card-copy :is(h2,h3){font-size:1.1875rem;line-height:1.35;margin-bottom:20px}}
.collection-auto{grid-template-columns:repeat(max(3,var(--collection-columns,3)),minmax(0,1fr))}
/* Motion toggle: 24px translucent disc top-right, shown on hover; the lead keeps a 40px disc visible. */
.motion-toggle{left:auto;right:16px;top:16px;bottom:auto;width:24px;height:24px;background:var(--ink-44);color:#fff}
.motion-toggle .icon{width:14px;height:14px}
.motion-toggle:hover{background:var(--ink-60)}
.featured-lead .motion-toggle{width:28px;height:28px;opacity:1;right:16px;top:16px}
.featured-lead .motion-toggle .icon{width:15px;height:15px}
.motion-toggle .icon,.compare-toggle .icon{stroke:none}
:root[data-theme=dark] .motion-toggle{background:rgba(0,0,0,.44)}
/* Article head: meta 14px/500 with a 60% category, 64px title, summary at body size. */
.article-header{margin-top:24px}
.article-meta{font-size:.875rem;line-height:1.225rem;font-weight:500;gap:16px;margin-bottom:32px}
.article-meta time{color:var(--ink)}
.article-meta a{color:var(--ink-60)}
.article-meta a:hover{color:var(--ink)}
.article-summary{font-size:var(--type-p1-size);line-height:var(--type-p1-line);letter-spacing:var(--type-p1-track);max-width:36rem;margin-top:32px}
.article-tools{border-top:1px solid var(--ink-12);padding-top:16px;min-height:0;margin-top:56px;margin-bottom:48px}
.article-tools .meta{font-size:.875rem;font-weight:500;line-height:1.225rem}
.toc-rail{font-size:12px;line-height:15px}
.toc-rail a{color:var(--ink-60)}
.toc-rail a.active{color:var(--ink);border-left-color:var(--ink)}
.prose h2{font-size:1.875rem;line-height:2.475rem;letter-spacing:-.01em;font-weight:500}
.footer-groups{font-size:.8125rem;line-height:1.23rem;font-weight:500}
.footer-group>span{color:var(--ink-60);font-weight:500}
.footer-bottom{font-size:.8125rem;font-weight:500}
.news-list{margin-top:24px}
/* Home sections after the news list follow the reference: three-up collections, then a full-width quiet band. */
.callout{background:var(--surface);border-radius:var(--radius);padding:112px 24px;gap:32px}
.callout h2{font-size:clamp(2rem,calc(1.5rem + 1.6vw),3rem);line-height:1.15;letter-spacing:-.02em;font-weight:480;max-width:40rem}
.callout .button{background:var(--ink-4);color:var(--ink);height:40px;min-height:40px;padding:0 20px;font-size:.875rem;font-weight:500;border:0}
.callout .button:hover{background:var(--ink-12);opacity:1}
.callout p{font-size:var(--type-p1-size);line-height:var(--type-p1-line);color:var(--ink-60)}
/* Footer: five dense columns, no rule, 13px/500 links on a 36px pitch, icons left, legal centre, pill right. */
.footer{margin-top:160px;padding-bottom:40px}
.footer-top{border-top:0;padding-top:64px}
.footer-groups{font-size:.8125rem;line-height:1.25rem;font-weight:500}
.footer-group{gap:16px;margin-bottom:48px}
.footer-group>span{margin-bottom:8px}
.footer-bottom{margin-top:96px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;font-size:.875rem;font-weight:500}
.footer-social{display:flex;gap:28px;justify-self:start}
.footer-social a{width:18px;height:18px}
.footer-social .icon{width:18px;height:18px}
.footer-legal{display:flex;gap:12px;justify-self:center;color:var(--ink);white-space:nowrap}
.footer-legal a{text-decoration:underline;text-underline-offset:3px}
.footer-pill{display:inline-flex;justify-self:end;height:44px;padding:0 20px 0 16px;gap:10px;font-size:.9375rem}
.footer-pill .icon{width:18px;height:18px}
.footer-pill span+span{color:var(--ink-60);margin-left:-4px}
.footer-legal .footer-note{display:inline}
@media(max-width:47.999rem){.footer-bottom{grid-template-columns:1fr;justify-items:start}.footer-legal,.footer-pill{justify-self:start}}
/* Recent news another 20% smaller; footer as five explicit columns. */
@media(min-width:48rem){.news-list{gap:22px 24px}.row-card .story-link{grid-template-columns:11rem minmax(0,1fr);gap:30px}.row-card .card-copy :is(h2,h3){font-size:1.125rem;line-height:1.4;margin-bottom:18px}}
.footer-groups{columns:auto;column-gap:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px}
.footer-col{display:flex;flex-direction:column}
.footer-group{gap:18px;margin-bottom:56px}
.footer-group>span{margin-bottom:6px}
@media(min-width:48rem){.footer-groups{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(min-width:63.75rem){.footer-groups{grid-template-columns:repeat(5,minmax(0,1fr));gap:0 24px}}
.footer-legal{gap:12px}
.footer-tools{display:flex;align-items:center;gap:12px;justify-self:end;margin-left:0}
.footer-pill{cursor:default}
.footer-pill span+span{margin-left:0}
.footer-pill .muted{color:var(--ink-60)}
@media(max-width:47.999rem){.footer-tools{justify-self:start}}

/* Scroll cost: off-screen sections are skipped; media are promoted to their own layers. */
.footer,.related,.callout,.split-section,.testimonials{content-visibility:auto;contain-intrinsic-size:auto 600px}
.has-motion video,.compare-video{will-change:transform;transform:translateZ(0)}

/* Cookie preferences dialog and the footer's text-style button. */
.footer-link-button{border:0;background:none;padding:0;font:inherit;color:inherit;text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.cookie-dialog{max-width:36rem;width:calc(100% - 2rem)}
.cookie-intro{font-size:.9375rem;line-height:1.5rem;color:var(--ink-60);margin:0 0 24px}
.cookie-intro a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.cookie-row{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:16px 0;border-top:1px solid var(--ink-12);font-size:.9375rem;line-height:1.4rem}
.cookie-row>span{display:grid;gap:2px}
.cookie-row .muted{font-size:.8125rem}
.cookie-row input{width:40px;height:24px;appearance:none;border-radius:12px;background:var(--ink-12);position:relative;flex:none;cursor:pointer;transition:background 200ms}
.cookie-row input::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform 200ms}
.cookie-row input:checked{background:var(--ink)}
.cookie-row input:checked::after{transform:translateX(16px)}
.cookie-row input:disabled{opacity:.5;cursor:default}
.cookie-actions{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;margin-top:24px}
.cookie-actions .button{height:40px;min-height:40px;padding:0 18px;font-size:.875rem}

/* Article end panel, as measured: spans the container, content aligned to the reading column, quiet pills. */
.article-end{margin-top:72px}
.article-end-panel{border-radius:8px;padding:60px 24px 72px;gap:56px}
.article-end-panel .tag-list{gap:10px}
.article-end-panel .tag-list a{background:var(--ink-4);font-size:.875rem;line-height:1.4rem;font-weight:500;padding:8px 12px;border-radius:32px}
.article-end-panel .tag-list a:hover{background:var(--ink-12)}
.article-end-panel .author-note .meta{font-size:.875rem;font-weight:500;color:var(--ink-60)}
.article-end-panel .author-note p+p{font-size:var(--type-p1-size);line-height:var(--type-p1-line);margin-top:12px}
@media(min-width:63.75rem){.article-end-panel{width:calc(200% + var(--grid-gap));margin-left:calc(-50% - var(--grid-gap)/2);padding-left:calc(50% + var(--grid-gap)/2);padding-right:calc(50% + var(--grid-gap)/2)}}  /* percentages resolve against the reading column, not the widened panel */

/* The contents rail yields to anything wide: structurally (end panel sits below its grid row) and dynamically (collision class). */
.article-end-grid{margin-top:0}
.toc-rail{transition:opacity 200ms var(--nav-ease)}
.toc-rail.is-collided{opacity:0;pointer-events:none}

/* Media boxes are isolated paint/layout units; the governor in interface.js owns playback. */
.has-motion,.compare-stage{contain:layout paint}
.card-grid,.news-list,.side-stack{content-visibility:auto;contain-intrinsic-size:auto 480px}

/* Masthead and footer metrics from the reference captures (×0.72): 17px wordmark, search icon 24px further out,
   footer link pitch 34px, tighter bottom row, 43px language pill with 16px text and a gray region. */
.brand{font-size:19px;letter-spacing:-.5px;font-weight:600}
.desktop-nav .nav-search{margin-left:16px;color:var(--ink-60)}
.desktop-nav .nav-search .icon{width:20px;height:20px;stroke-width:1.4}
.footer{margin-top:120px;padding-bottom:36px}
.footer-top{padding-top:56px}
.footer-groups{line-height:1.25rem}
.footer-group{gap:14px;margin-bottom:44px}
.footer-group>span{margin-bottom:2px}
.footer-bottom{margin-top:72px;font-size:.9375rem}
.footer-social{gap:22px}
.footer-social a,.footer-social .icon{width:18px;height:18px}
.footer-social a:hover{color:var(--ink-60)}
.footer-pill{height:43px;padding:0 20px;gap:10px;font-size:1rem;line-height:1;font-weight:500;background:var(--ink-4)}
.footer-pill .icon{width:20px;height:20px;stroke-width:1.6}
.footer-legal{font-size:1rem}
.footer-legal .footer-link-button{font-size:1rem}
/* Hero height from the reference capture: heading→box 40px, box→pills 24px, hero ends ~216px under the pills. */
.discovery{height:auto;padding:200px 0 176px}
.home-page .discovery{margin-bottom:-56px}
.discovery h1{margin-bottom:28px}
.discovery-topics a{color:var(--ink-60)}
.discovery-topics a:hover{color:var(--ink)}
.desktop-nav .nav-search{margin-left:2px}
@media(max-width:47.999rem){.discovery{padding:120px 0 96px}}
.discovery{padding:210px 0 136px}
.discovery h1{margin-bottom:12px}
.desktop-nav .nav-search{margin-left:14px}

/* Navigation groups are link + hover panel (the label navigates; the panel opens on hover, focus or the menu button). */
.nav-group{display:inline-flex;align-items:stretch;position:relative}
.nav-group>.nav-trigger{display:inline-flex;align-items:center;height:100%;padding:0 16px;font-size:.8125rem;line-height:1.23rem;font-weight:450;letter-spacing:0;color:var(--ink);transition:color 250ms var(--nav-ease)}
.desktop-nav>a{font-weight:450}
.nav-menu-button{position:absolute;right:2px;top:50%;width:20px;height:20px;transform:translateY(-50%);border:0;background:none;color:var(--ink);padding:0;display:grid;place-items:center;opacity:0;pointer-events:none}
.nav-menu-button:focus-visible{opacity:1;pointer-events:auto;outline:2px solid var(--focus);outline-offset:2px}
.nav-menu-button .icon{width:10px;height:10px}
.desktop-nav:has(>:is(a,.nav-group):hover,>.nav-group[data-open])>:is(a,.nav-group):not(:hover,[data-open])>*{color:var(--ink-60)}
.nav-group[data-open]>.nav-trigger,.nav-group>.nav-trigger:hover{color:var(--ink)}
.nav-group[data-open]>.nav-panel{height:var(--panel-height,auto)}
.nav-panel-inner{padding:66px var(--gutter) 40px;gap:132px}
.nav-eyebrow{font-weight:400;margin-bottom:24px}
.nav-primary li{margin-bottom:0}
.nav-primary a{font-size:1.75rem;line-height:2.1rem;font-weight:480;letter-spacing:-.01em;display:block;padding:8px 0 25px!important}
.nav-secondary li{margin-bottom:14px}
.nav-secondary a{font-size:.8125rem;line-height:1.05rem;font-weight:600}

/* Index pages (journal, category indexes) after the reference: text tabs, Filter/Sort as quiet tools, list rows with a
   meta column, divider rules; the category index opens in list view. */
.journal-header{margin-bottom:24px}
.journal-page .type-h1{font-size:clamp(2.5rem,calc(2rem + 2vw),4rem);line-height:1.05;letter-spacing:-.03em;font-weight:480}
.index-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px 32px;margin:40px 0 24px}
.index-tabs{display:flex;flex-wrap:wrap;gap:0 28px;font-size:1.25rem;line-height:1.5rem;font-weight:450;margin:0;padding:0;border:0;overflow:visible}
.index-tabs a{color:var(--ink-60);padding:6px 0;background:none;border:0;border-radius:0;font:inherit;transition:color 200ms var(--nav-ease)}
.index-tabs a:hover,.index-tabs a.selected{color:var(--ink);background:none}
.index-tools{display:flex;align-items:center;gap:28px;margin:0;padding:0;border:0;flex-wrap:wrap}
.index-tool{display:inline-flex;align-items:center;gap:6px;font-size:1rem;line-height:1.5rem;font-weight:450;color:var(--ink);cursor:pointer;list-style:none;position:relative}
.index-tool::-webkit-details-marker{display:none}
.index-tool .icon{width:16px;height:16px}
.index-filter{position:relative}
.index-filter-panel{position:absolute;right:0;top:calc(100% + 12px);z-index:20;background:var(--bg);border:1px solid var(--ink-12);border-radius:12px;padding:16px;min-width:22rem;box-shadow:0 12px 40px rgba(0,0,0,.08);display:grid;gap:12px}
.index-sort select{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}
.index-tools .view-switch{display:flex;gap:4px}
.index-tools .view-switch .icon-button{width:32px;height:32px;color:var(--ink-60)}
.index-tools .view-switch .icon-button.selected{color:var(--ink);background:none}
.results-meta{margin:0 0 8px}
.index-list{display:block}
.index-row{border-top:1px solid var(--ink-12);border-bottom:0;padding:0}
.index-row .story-link{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;padding:40px 0 44px}
.index-row-meta{display:grid;gap:12px;align-content:start;font-size:.875rem;line-height:1.225rem;font-weight:500}
.index-row-meta time{color:var(--ink-60);font-weight:500}
.index-row-body{display:grid;gap:16px;max-width:52rem}
.index-row-title{font-size:1.375rem;line-height:1.75rem;letter-spacing:-.01em;font-weight:500;margin:0;transition:color 250ms var(--nav-ease)}
.index-row .story-link:hover .index-row-title{color:var(--ink-60)}
.index-row-excerpt{font-size:var(--type-p1-size);line-height:var(--type-p1-line);letter-spacing:var(--type-p1-track);margin:0;color:var(--ink)}
.index-list .index-row:last-child{border-bottom:1px solid var(--ink-12)}
@media(min-width:48rem){.index-row .story-link{grid-template-columns:minmax(0,3fr) minmax(0,10fr);gap:32px;padding:48px 0 52px}}
@media(min-width:63.75rem){.index-row .story-link{grid-template-columns:23% minmax(0,1fr);gap:0}}
/* Corrections against the reference captures: panel-only triggers look like the links; index spacing/sizes; rules that
   darken on hover; footer legal line set like the footer links. */
.nav-group>button.nav-trigger{background:none;border:0;cursor:pointer;font-family:inherit}
.nav-menu-button{display:none}
.journal-page .type-h1{font-size:3.625rem;line-height:1.05;letter-spacing:-.03em;font-weight:480}
.journal-header{margin-bottom:0}
.index-page .index-bar{margin:28px 0 0}
.index-page .index-tabs{font-weight:400}
.index-page .index-list{margin-top:74px}
.index-row{border-top-color:rgba(0,0,0,.08);transition:border-color 250ms var(--nav-ease)}
.index-list .index-row:last-child{border-bottom-color:rgba(0,0,0,.08)}
.index-row:hover,.index-row:hover+.index-row{border-top-color:var(--ink)}
.index-list .index-row:last-child:hover{border-bottom-color:var(--ink)}
.index-row .story-link:hover .index-row-title{color:var(--ink)}
@media(min-width:63.75rem){.index-row .story-link{padding:56px 0 60px}}
.footer-legal,.footer-legal .footer-link-button{font-size:.875rem;line-height:1.225rem;font-weight:500}
.footer-legal{gap:12px}
/* Index rows measured against the reference: no rule above the first row, 148px row pitch, 21px titles, 36px category→date. */
.index-list.list-view .index-row>.story-link{padding:36px 0 40px;grid-template-columns:23% minmax(0,1fr);gap:0;align-items:start}
.index-page .index-list{margin-top:0}
.index-list .index-row:first-child{border-top-color:transparent}
.index-list .index-row:first-child:hover{border-top-color:transparent}
.index-row-title{font-size:1.3125rem;line-height:1.7rem}
.index-row-meta{gap:16px}
.nav-eyebrow{margin-bottom:34px}
.nav-primary{min-width:25rem}
@media(max-width:47.999rem){.index-list.list-view .index-row>.story-link{grid-template-columns:minmax(0,1fr);gap:12px;padding:28px 0 32px}}
/* From the 10:00 captures: panel eyebrow→links 53px, bottom 24px, second column follows the first column's width;
   index title clamps like the reference, excerpt measure 52rem, tabs→first row 120px. */
.nav-eyebrow{margin-bottom:19px}
.nav-primary{min-width:0}
.nav-panel-inner{gap:120px;padding-bottom:24px}
.nav-primary a{padding:6px 0 22px!important}
.journal-page .type-h1{font-size:clamp(2.5rem,calc(1.5rem + 2.4vw),3.5rem)}
.index-page .index-list{margin-top:26px}
.index-row-body{max-width:52rem}
.index-list.list-view .index-row>.story-link{padding:40px 0 44px}
/* Panel, from the live probe at 1440: panel padding 32/32, eyebrow 13px/500 60%, eyebrow→links 12px, 30px links on a
   53px pitch (line 39.6 + 13), small links 13px/600 on a 28px pitch, second column 120px after the first. */
.nav-panel-inner{padding:32px var(--gutter) 32px;gap:120px;align-items:flex-start}
.nav-eyebrow{font-size:.8125rem;line-height:1.23rem;font-weight:500;color:var(--ink-60);margin:0 0 12px}
.nav-primary a{font-size:1.875rem;line-height:2.475rem;letter-spacing:-.01em;font-weight:480;padding:0!important;display:block}
.nav-primary li{margin:0 0 13px}
.nav-primary li:last-child{margin-bottom:0}
.nav-secondary{padding-top:19px}
.nav-secondary li{margin:0 0 11px}
.nav-secondary a{font-size:.8125rem;line-height:1.05rem;font-weight:600}
/* Index rows, from the live probe at 1440: bottom rule 12% → 44% on hover, 32px padding, 285px meta column + 32px
   inset, 18px/500 title (mb 16), 14px/400 summary on 22.96 line, tabs 18px/500 with 24px gaps, rows start 32px under the tabs. */
.index-page .index-bar{margin:19px 0 0}
.index-tabs{font-size:1.125rem;line-height:1.485rem;letter-spacing:-.01em;font-weight:500;gap:0 24px}
.index-page .index-tabs{font-weight:500}
.index-tabs a{padding:0}
.index-tool{font-size:1rem;font-weight:500}
.index-page .index-list{margin-top:32px}
.index-row,.index-list .index-row:first-child,.index-list .index-row:last-child{border-top:0;border-bottom:1px solid rgba(0,0,0,.12);transition:border-color 250ms var(--nav-ease)}
.index-row:hover,.index-row:hover+.index-row,.index-list .index-row:first-child:hover,.index-list .index-row:last-child:hover{border-top:0;border-bottom-color:rgba(0,0,0,.44)}
.index-list.list-view .index-row>.story-link{grid-template-columns:17.813rem minmax(0,1fr);gap:0;padding:32px 0;align-items:baseline}
.index-row-meta{gap:16px;font-size:.875rem;line-height:1.225rem;font-weight:500}
.index-row-body{padding-left:32px;max-width:calc(40.4375rem + 32px);gap:16px}
.index-row-title{font-size:1.125rem;line-height:1.485rem;letter-spacing:-.01em;font-weight:500}
.index-row-excerpt{font-size:.875rem;line-height:1.435rem;letter-spacing:-.01em;font-weight:400}
.journal-page .type-h1{font-size:3.5rem;line-height:1.05}
@media(max-width:47.999rem){.index-list.list-view .index-row>.story-link{grid-template-columns:minmax(0,1fr);gap:12px;padding:28px 0}.index-row-body{padding-left:0}}
.nav-secondary{padding-top:7px}
.index-page .index-list{margin-top:24px}
.index-row-body{max-width:40.4375rem}