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:root{--ink:#17212c;--muted:#526171;--blue:#2447ff;--line:#d3dae2;--soft:#f1f4f7;--radius:6px;--font-sans:Nunito,system-ui,sans-serif;--font-mono:'IBM Plex Mono',ui-monospace,monospace;--fs-meta:12px;--fs-body:15px;--fs-lead:15.5px;--fw-heading:700;--fw-title:650;--usb-content-max:1300px;--usb-content-pad:32px;--fs-home-section:26px;--fs-home-lead:30px;--fs-home-card:22px;--fs-home-compact:19px;--fs-home-feed:16px;--lh-home-lead:1.15;--lh-home-card:1.25;--lh-home-compact:1.3;--lh-home-feed:1.35;--lh-meta:1.4}
*{box-sizing:border-box}body{margin:0;background:white;color:var(--ink);font-family:var(--font-sans);font-size:16px;line-height:1.55}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}button,input,select{font:inherit}button{cursor:pointer;color:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button:disabled{cursor:default;opacity:.55}[hidden]{display:none!important}img{display:block;max-width:100%}h1,h2,h3,p,figure{margin:0}h1,h2,h3{text-wrap:balance}h1{font-family:var(--font-sans);font-weight:var(--fw-heading);font-size:40px;line-height:1.12;letter-spacing:-.025em}h2{font-size:var(--fs-home-section);font-weight:var(--fw-title);line-height:1.2;letter-spacing:-.025em}h3{font-size:21px;font-weight:600;line-height:1.3;letter-spacing:-.015em}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--blue);outline-offset:4px}#main:focus,#workspace:focus,#workspace h1[tabindex="-1"]:focus{outline:none}.wrap{max-width:var(--usb-content-max);margin:auto;padding-left:var(--usb-content-pad);padding-right:var(--usb-content-pad)}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.skip{position:absolute;top:-100px;left:24px;padding:12px;background:white;z-index:30}.skip:focus{top:25px}.prototype-note{display:flex;justify-content:space-between;gap:20px;padding:4px 32px;background:#f2f4f6;color:var(--muted);font-size:var(--fs-meta);min-height:23px}
.material-meta,.news-meta,.result .type,.repo-meta,.repo-stars,.section-heading time,.opening-heading time,.port-fact span,.calc-result strong{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
/* Keep the home grid compatible with the installed shared-footer renderer. */
body[data-usb-home-focus="v1"] footer.usb-site-footer{--page-max:var(--usb-content-max);--page-pad:var(--usb-content-pad)}
/* The publisher fallback uses the same class names as the interactive feed. */
noscript .home-news .news-summary-copy{min-width:0;overflow-wrap:anywhere}
noscript .home-news .news-thumbnail{flex:0 0 80px}
noscript .home-news .news-meta{flex-wrap:wrap}
noscript .home-news .news-meta time{white-space:normal}
noscript .home-news :is(.news-body,.news-lead,.news-sources,.news-takeaway){overflow-wrap:anywhere}
.home-fallback-nav{padding-top:12px}
/* Two clear navigation levels; the five top links are deliberately separate from topics. */
.brand-line{min-height:70px;display:flex;align-items:center;gap:27px;flex-wrap:wrap}.brand{display:flex;gap:11px;align-items:center;white-space:nowrap}.brand svg{width:34px;height:34px;stroke:none}.brand strong{font-family:var(--font-sans);font-size:41px;line-height:1;font-weight:800;letter-spacing:-.04em}.brand-description{font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding-left:25px}.utilities{display:flex;gap:20px;margin-left:0}.global-search{display:flex;align-items:center;min-width:0;width:200px;margin-left:auto;border:1px solid var(--line);border-radius:4px;background:white}.global-search input{min-height:34px;font-size:13px;border:0;background:none;min-width:0;width:100%;padding:6px 9px;outline-offset:0}.global-search button{display:flex;align-items:center;justify-content:center;background:none;border:0;min-width:34px;min-height:34px;padding:8px}.global-search svg{width:16px;height:16px}.primary-nav a[aria-current=page]{color:var(--blue);box-shadow:inset 0 -2px var(--blue)}.section-title-row{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:6px 20px}.section-count{font-family:var(--font-mono);font-size:var(--fs-meta);color:var(--muted);margin:0}.section-title-row h1{min-width:0}.section-results.results{max-width:none;width:100%}.section-results{display:grid;grid-template-columns:1fr 1fr;gap:0 32px}.section-results .result :is(h2,h3){font-size:21px;line-height:1.3;font-weight:var(--fw-title)}.section-results .empty{grid-column:1/-1}.meta-footnote{font-size:12px;color:var(--muted);padding-top:18px;padding-bottom:18px}.utilities button{display:flex;gap:8px;align-items:center;min-height:44px;padding:8px 3px;border:0;background:none;font-size:12px}.utilities button:hover{color:var(--blue)}.utilities svg{width:19px;height:19px}.save-count{font-size:var(--fs-meta);min-width:18px;text-align:center;background:var(--blue);color:white;border-radius:20px}.primary-nav{display:flex;gap:34px;align-items:center;min-height:46px;border-bottom:2px solid var(--ink);font-size:14px;font-weight:500}.primary-nav a{display:flex;align-items:center;min-height:44px;padding:8px 0}
.topic-bar{display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--line);margin-bottom:16px}.topics{display:grid;flex:0 1 auto;min-width:0;overflow-x:auto;scrollbar-width:thin;overscroll-behavior-x:contain;grid-template-columns:repeat(7,52px);justify-content:start;align-items:center;gap:16px;padding:8px 0;margin:0}.topics button{position:relative;display:flex;justify-content:center;align-items:center;justify-self:center;width:52px;height:48px;padding:10px;border:0;border-bottom:2px solid transparent;background:none;color:var(--ink)}.topics button:focus-visible{outline-offset:-3px}.topics button:hover{color:var(--blue);background:var(--soft)}.topics button[aria-pressed=true]{border-bottom-color:var(--blue);color:var(--blue);background:#edf1ff}.topics button svg{width:28px;height:28px;stroke-width:1.6}.topics button img{width:28px;height:28px}#topic-tooltip{position:fixed;z-index:40;width:max-content;max-width:min(200px,calc(100vw - 24px));padding:6px 9px;border-radius:5px;background:var(--ink);color:white;font-size:12px;line-height:1.3;text-align:center;box-shadow:0 3px 10px #17212c26}.topic-context{display:flex;flex:0 1 auto;min-width:0;align-items:center;gap:12px;margin-left:auto;font-size:13px}.topic-context p{min-width:0}.topic-context strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}.topic-context button{flex-shrink:0;white-space:nowrap}.topic-context button{border:0;background:none;color:var(--blue);font-size:13px;min-height:40px}
.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:22px}.section-heading>a{font-size:13px;line-height:1.4;font-weight:600;color:var(--blue);min-height:44px;display:flex;align-items:center}.section-heading time{font-size:12px;color:var(--muted);white-space:nowrap}.news-opening{scroll-margin-top:18px}.opening-heading{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin-bottom:20px}.opening-heading h2{font-size:var(--fs-home-section);font-weight:var(--fw-title)}.opening-heading time{font-size:12px;color:var(--muted)}.front-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) 270px;gap:28px;align-items:start}.front-grid>*{min-width:0}
/* Shared Nunito roles distinguish news, explanations and interface through weight and scale. */
.lead-meta{display:flex;align-items:start;justify-content:space-between;gap:12px;margin-bottom:12px}.lead-meta .bookmark{min-width:44px;min-height:44px;padding:12px;margin-top:-10px;margin-bottom:-10px}.lead-article .material-meta{margin:0}.material-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:var(--fs-meta);color:var(--muted);line-height:1.4}.material-meta>span:first-child{font-weight:600;color:var(--blue)}.material-meta>span+span:before{content:'·';margin-right:10px;color:#7a8794}.lead-article h3{font-family:var(--font-sans);font-size:var(--fs-home-lead);line-height:var(--lh-home-lead);font-weight:var(--fw-heading);letter-spacing:-.035em;text-wrap:pretty;overflow-wrap:anywhere}.lead-deck{font-size:var(--fs-lead);line-height:1.5;color:var(--muted);margin-top:12px;max-width:70ch}.lead-actions{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:13px}.read-link{font-size:13px;line-height:1.4;font-weight:600;color:var(--blue);display:inline-flex;gap:9px;align-items:center;min-height:44px}.bookmark{border:0;background:transparent;color:var(--muted);min-height:44px;min-width:44px;padding:12px;display:inline-flex;justify-content:center;align-items:center;flex-shrink:0}.bookmark svg{width:18px;height:18px}.bookmark:hover,.bookmark[aria-pressed=true]{color:var(--blue);background:#edf1ff;border-radius:4px}.bookmark[aria-pressed=true] svg{fill:#dfe5ff}
.port-comparison{margin-top:24px;background:#f3f5f8;border-top:2px solid var(--blue)}.comparison-header{display:flex;justify-content:space-between;gap:16px;padding:13px 18px 8px;font-size:var(--fs-meta);color:var(--muted)}.comparison-header>span:first-child{font-weight:500;color:var(--ink)}.port-panels{display:grid;grid-template-columns:1fr 1fr}.port-panel{padding:8px 18px 16px;min-width:0}.port-panel+ .port-panel{border-left:1px solid #d5dde7}.port-label{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:12px}.port-label strong{font-weight:500}.port-label>span{color:var(--muted)}.port-panel img{width:100%;height:132px;object-fit:contain;mix-blend-mode:multiply;margin:10px 0}.port-fact{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.port-fact strong{font-size:19px;line-height:1.2;font-weight:600;letter-spacing:-.02em}.port-fact span{font-size:var(--fs-meta);color:var(--muted)}.port-comparison figcaption{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #d5dde7;font-size:var(--fs-meta);color:var(--muted);padding:10px 18px}.port-comparison figcaption a{white-space:nowrap}.lead-figure{margin-top:22px}.lead-figure img{height:230px;width:100%;object-fit:contain;background:#090e18}.lead-figure figcaption{font-size:var(--fs-meta);margin-top:7px;color:var(--muted)}
/* Chronology stays distinct from editorial selection. */
.news-section{padding-left:20px;border-left:1px solid var(--line);scroll-margin-top:20px}.news-section .section-heading{border-top:2px solid var(--ink);padding-top:12px;margin-bottom:2px}.news-section h2{font-size:18px;font-weight:var(--fw-title)}.news-item{padding:14px 0;border-bottom:1px solid var(--line)}.news-meta{display:flex;justify-content:space-between;gap:10px;font-size:var(--fs-meta);line-height:var(--lh-meta);color:var(--muted);margin-bottom:7px}.news-meta time{white-space:nowrap}.news-item h3{font-size:var(--fs-home-feed);line-height:var(--lh-home-feed);font-weight:600;letter-spacing:-.01em;text-wrap:pretty}.all-news{display:flex;justify-content:space-between;align-items:center;min-height:50px;color:var(--blue);font-size:13px;line-height:1.4;font-weight:600}
.news-picks-grid{display:grid;gap:18px}.supporting-column{padding-left:22px;border-left:1px solid var(--line)}.compact-news+.compact-news{padding-top:16px;border-top:1px solid var(--line)}.compact-meta{display:flex;align-items:start;justify-content:space-between;gap:8px;margin-bottom:8px}.compact-meta .bookmark{min-width:44px;min-height:44px;padding:12px;margin-top:-10px;margin-bottom:-10px}.compact-news h3{font-size:var(--fs-home-compact);line-height:var(--lh-home-compact);font-weight:600;text-wrap:pretty;overflow-wrap:anywhere}.compact-news .material-meta{font-size:var(--fs-meta);gap:7px}.explainer-section{border-top:2px solid var(--blue);padding-top:17px;margin-top:24px}.explainer-article h3{font-family:var(--font-sans);font-size:var(--fs-home-card);line-height:var(--lh-home-card);font-weight:var(--fw-title);margin-top:9px;letter-spacing:-.02em}.explainer-article .material-meta{font-size:var(--fs-meta)}.explainer-article .port-comparison{margin-top:14px;border-top:0}.explainer-article .comparison-header{padding:7px 9px;font-size:var(--fs-meta)}.explainer-article .comparison-header>span:first-child{display:none}.explainer-article .port-panel{padding:6px 9px 9px}.explainer-article .port-label{display:block;font-size:var(--fs-meta)}.explainer-article .port-label strong{display:block}.explainer-article .port-panel img{height:55px;margin:6px 0}.explainer-article .port-fact{display:block}.explainer-article .port-fact strong{font-size:14px}.explainer-article .port-fact span{display:block;font-size:var(--fs-meta);margin-top:3px}.explainer-article .port-comparison figcaption{padding:6px 9px;font-size:var(--fs-meta)}.explainer-article .port-comparison figcaption span{display:none}.explainer-article .lead-actions{margin-top:5px}.article-card{min-width:0}.story-image-link{display:block;overflow:hidden;background:var(--soft)}.story-image-link img{width:100%;height:100%;object-fit:cover}.article-card .material-meta{margin:0 0 10px}.article-card h3{font-size:var(--fs-home-card);font-weight:var(--fw-title);line-height:var(--lh-home-card);letter-spacing:-.02em}.story-description{font-size:var(--fs-body);line-height:1.5;color:var(--muted);margin-top:10px}.material-footer{display:flex;justify-content:space-between;align-items:start;gap:12px;flex-wrap:wrap;margin-top:10px}.image-credit{font-size:var(--fs-meta);line-height:1.4;color:var(--muted);min-width:0;max-width:43ch}.articles-section{margin-top:42px;padding-top:25px;border-top:2px solid var(--ink);scroll-margin-top:20px}.articles-section h2{font-size:var(--fs-home-section)}.article-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:26px}.article-grid .story-image-link{aspect-ratio:1.8;margin-bottom:17px}.article-grid .article-card h3{font-family:var(--font-sans);font-size:var(--fs-home-card);line-height:var(--lh-home-card);font-weight:var(--fw-title);letter-spacing:-.02em}.article-grid [data-material-id="memory"]{background:#eef2ff;padding:20px}.article-grid [data-material-id="memory"] .story-image-link{margin:-20px -20px 18px;aspect-ratio:2.15;background:#2447ff}.article-grid img[src*="model-memory"]{object-fit:contain}.article-grid img[src*="charging"]{object-fit:contain;padding:10px}.article-grid [data-material-id="power"] .story-image-link{background:#f1f4f7}
/* GitHub Stars is a named editorial section, with real repositories and dated counts. */
.github-section{margin-top:42px;padding:27px 0 24px;border-top:2px solid var(--ink);border-bottom:1px solid var(--line);scroll-margin-top:20px}.github-heading{display:flex;justify-content:space-between;align-items:center;gap:24px}.github-heading-title{display:flex;align-items:center;gap:13px}.github-heading h2{font-size:var(--fs-home-section)}.github-heading-title p{font-size:var(--fs-meta);color:var(--muted);margin-top:2px}.github-heading button{background:transparent;border:0;min-height:44px;padding:8px 0;color:var(--blue);font-size:13px;line-height:1.4;font-weight:600}.github-intro{display:flex;justify-content:space-between;align-items:baseline;gap:32px;margin:25px 0 22px}.github-intro h3{font-family:var(--font-sans);font-weight:var(--fw-heading);font-size:27px}.github-intro p{max-width:52ch;font-size:14px;color:var(--muted)}.github-projects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.repo-card{border-top:1px solid var(--line);padding-top:16px;display:flex;flex-direction:column}.repo-meta{display:flex;justify-content:space-between;gap:10px;font-size:var(--fs-meta);line-height:var(--lh-meta);color:var(--muted)}.repo-meta>span:first-child{overflow-wrap:anywhere}.repo-stars{display:flex;align-items:center;gap:4px;white-space:nowrap}.repo-stars svg{width:13px;height:13px;fill:currentColor;stroke-width:0}.repo-card h3{margin-top:16px;font-size:var(--fs-home-card);line-height:var(--lh-home-card);letter-spacing:-.02em;font-weight:var(--fw-title)}.repo-card h3 span{font-size:17px;color:var(--blue)}.repo-card>p{font-size:var(--fs-body);line-height:1.5;color:var(--muted);margin-top:12px}.repo-use{font-size:12px;color:var(--blue);font-weight:500;margin-top:18px}.repo-card .repo-limit{font-size:12px;color:var(--muted);margin-top:8px}.repo-footer{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:auto;padding-top:12px}.github-source{font-size:var(--fs-meta);color:var(--muted);margin-top:20px;max-width:95ch}.github-section.standalone{margin-top:4px}.github-section.standalone .github-heading h2{font-size:40px}.github-section.standalone .github-intro h3{font-size:32px}
.practical{display:grid;grid-template-columns:1fr 2fr;gap:46px;align-items:start;padding:35px 0;border-bottom:1px solid var(--line)}.practical h2{font-size:var(--fs-home-section)}.practical-links{display:grid;grid-template-columns:1fr 1fr;gap:0 28px}.practical-links a{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding:12px 0;font-size:14px;line-height:1.4;min-height:52px}.practical-links a span{color:var(--blue)}.follow{display:flex;align-items:center;flex-wrap:wrap;gap:18px;padding:30px 0;border-bottom:1px solid var(--line)}.follow h2{font-size:22px}.follow p{font-size:13px;color:var(--muted);margin-right:auto}.follow>a{font-size:14px;min-height:42px;padding:9px 0;color:var(--blue)}footer{display:flex;align-items:center;flex-wrap:wrap;gap:24px;min-height:90px;font-size:12px;color:var(--muted)}.footer-brand{font-family:var(--font-sans);font-size:24px;letter-spacing:-.04em;font-weight:800;color:var(--ink)}footer>span{margin-left:auto}footer a{min-height:36px;display:inline-flex;align-items:center}
#notification{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:12px 20px;border-radius:5px;font-size:14px;max-width:calc(100% - 32px);width:max-content;z-index:20;box-shadow:0 5px 20px #17212c26}#notification:empty{display:none}.primary-link{display:inline-flex;align-items:center;min-height:44px;color:var(--blue);font-size:14px;font-weight:500}.full-search{display:inline-flex;min-height:44px;align-items:center;margin-top:20px;color:var(--blue);font-weight:500}
/* Additional prototype states share the page instead of interrupting it. */
#workspace{padding:6px 0 45px;min-height:65vh}.back{background:none;border:0;color:var(--blue);padding:6px 0;min-height:44px;font-size:14px;font-weight:650;margin-bottom:0}.panel-intro{max-width:72ch;color:var(--muted);margin:6px 0 8px}.search-field{display:flex;gap:10px;max-width:760px;margin:22px 0}.search-field input{border:1px solid #929aaa;border-radius:8px;min-height:52px;padding:12px 16px;width:100%;min-width:0}.search-field button,.solid-button{background:var(--blue);color:white;border:0;padding:12px 22px;border-radius:8px;font-weight:750}.solid-button:hover,.search-field button:hover{background:#1934c9;color:white}.results{max-width:850px}.result{display:flex;gap:20px;justify-content:space-between;padding:20px 0;border-bottom:1px solid var(--line);align-items:start}.result>div{min-width:0}.result :is(h2,h3){font-size:21px;line-height:1.3;font-weight:var(--fw-title);letter-spacing:-.015em}.result p{color:var(--muted);font-size:var(--fs-body);margin-top:8px}.result .bookmark{flex-shrink:0}.result .type{font-size:12px;color:var(--muted);margin-top:7px}.empty{background:var(--soft);padding:24px;border-radius:var(--radius);max-width:760px}.empty p{margin:8px 0 16px;color:var(--muted)}.empty a{color:var(--blue)}.demo-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:48px;max-width:1040px}.demo-controls{background:var(--soft);padding:26px;border-radius:var(--radius)}fieldset{border:0;margin:0 0 24px;padding:0}legend{font-weight:800;margin-bottom:12px}.choices{display:flex;gap:8px;flex-wrap:wrap}.choices label{display:flex;align-items:center;gap:7px;padding:9px 12px;border:1px solid var(--line);background:white;border-radius:6px;cursor:pointer}.choices label:has(input:checked){background:#e5eaff;border-color:var(--blue);color:var(--blue)}input[type=radio]{accent-color:var(--blue)}.calc-result{border-top:1px solid var(--line);padding-top:20px}.calc-result strong{font-size:42px;letter-spacing:-.03em;line-height:1.1;display:block}.calc-result p{font-size:14px;color:var(--muted);margin-top:8px}.calc-bar{margin-top:18px;height:16px;background:#d9dfeb;border-radius:3px}.calc-bar span{display:block;height:100%;background:var(--blue);border-radius:3px;}.demo-context h2{margin-bottom:12px}.demo-context p{margin-bottom:20px;color:var(--muted)}.demo-context ol{padding-left:22px}.demo-context li{margin:12px 0}.demo-context a{color:var(--blue);font-weight:750}.story-list{max-width:940px}.story-page{max-width:820px}.story-page h2{margin-top:28px;margin-bottom:12px}.story-page p{margin-bottom:16px;color:var(--muted)}.story-page li{margin:14px 0}.story-page a{color:var(--blue)}.story-page .bookmark{float:right}.draft-note{font-size:13px;background:var(--soft);padding:12px 16px;border-radius:6px;margin-bottom:22px;color:var(--muted)}
@media(max-width:1100px){:root{--usb-content-pad:26px}.brand-description{display:none}.topics{gap:12px}.front-grid{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:26px}.news-section{grid-column:1/-1}.news-section #news-list{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.news-section{padding-left:20px}.port-panel{padding:7px 12px 12px}.port-panel img{height:112px}.port-label{font-size:var(--fs-meta)}.port-fact{display:block}.port-fact span{display:block;margin-top:4px}.article-grid{grid-template-columns:1fr 1fr;gap:26px}.article-grid>.article-card:last-child{grid-column:1/-1}.article-grid>.article-card.has-image:last-child{display:grid;grid-template-columns:180px minmax(0,1fr);gap:24px}.article-grid>.article-card:last-child .story-image-link{aspect-ratio:1.25;margin:0}.github-projects{gap:20px}.repo-meta{flex-wrap:wrap}}
@media(max-width:760px){
 :root{--usb-content-pad:20px;--fs-home-section:24px;--fs-home-lead:26px;--fs-home-compact:18px;--fs-home-feed:18px}.prototype-note{padding:4px 20px;font-size:var(--fs-meta);min-height:22px}.prototype-note span{display:none}.brand-line{min-height:58px;gap:4px 12px;padding:12px 0 8px}.global-search{order:3;width:200px;flex-basis:auto;margin:4px 0 0 auto}.global-search input{min-height:44px;padding:8px;font-size:14px}.global-search button{min-height:44px;min-width:44px}.section-results{grid-template-columns:1fr}.utilities{margin-left:auto}.brand strong{font-size:32px}.brand svg{width:28px;height:28px}.brand{gap:9px}.brand-description{display:none}.utilities{gap:6px}.utilities button{padding:8px;min-height:44px;min-width:44px}.utilities button span:not(.save-count){display:none}.utilities svg{width:20px;height:20px}.primary-nav{display:flex;flex-wrap:wrap;gap:0 23px;font-size:13px;min-height:44px;padding-bottom:4px}.primary-nav a{min-height:44px;padding:8px 0}
 .topic-bar{gap:8px;margin-bottom:12px}.topics{grid-template-columns:repeat(7,44px);gap:4px;padding:5px 0;flex:1 1 auto}.topics button{width:44px;height:44px;padding:8px}.topics button svg{width:26px;height:26px}.topics button img{width:26px;height:26px}.topic-context{flex:0 1 auto;max-width:45%;gap:6px;font-size:12px}.topic-context button{min-height:44px;padding:4px}.topic-context button{font-size:12px}
 .opening-heading{margin-bottom:16px;gap:10px}.opening-heading time{font-size:var(--fs-meta)}.front-grid{display:flex;flex-direction:column;gap:20px}.supporting-column{padding:0;border:0;width:100%}.news-picks-grid{gap:14px}.compact-news+.compact-news{padding-top:12px}.compact-meta{margin-bottom:6px}.compact-news .bookmark{min-width:44px;min-height:44px;padding:12px;margin-top:-10px;margin-bottom:-10px}.explainer-section{margin-top:22px}.explainer-article .port-panel img{height:75px}.explainer-article .port-fact strong{font-size:16px}.lead-section,.news-section{width:100%}.lead-article .material-meta{font-size:var(--fs-meta);margin:0}.lead-meta{margin-bottom:10px}.lead-meta .bookmark{min-width:44px;min-height:44px;padding:12px;margin-top:-10px;margin-bottom:-10px}.lead-article .lead-actions{display:none}.lead-article h3{letter-spacing:-.03em;max-width:none}.lead-deck{font-size:15px;line-height:1.45;margin-top:10px}.lead-actions{margin-top:8px}.read-link{min-height:40px;font-size:13px}.bookmark{min-height:44px;min-width:44px}
 .port-comparison{margin-top:19px}.comparison-header{display:block;padding:11px 13px 8px;font-size:var(--fs-meta)}.comparison-header>span+span{display:block;margin-top:3px}.port-panels{grid-template-columns:1fr}.port-panel{display:grid;grid-template-columns:115px minmax(0,1fr);grid-template-rows:auto auto;gap:6px 14px;padding:12px 13px;align-items:center}.port-panel+ .port-panel{border-left:0;border-top:1px solid #d5dde7}.port-panel img{grid-column:1;grid-row:1/3;height:78px;margin:0;width:115px}.port-label{grid-column:2;grid-row:1;display:block;font-size:var(--fs-meta)}.port-label strong{display:block;margin-top:3px}.port-fact{grid-column:2;grid-row:2;display:block}.port-fact strong{font-size:18px}.port-fact span{font-size:var(--fs-meta);margin-top:2px;display:block}.port-comparison figcaption{padding:9px 13px;font-size:var(--fs-meta);display:block}.port-comparison figcaption span{display:none}.lead-figure{margin-top:12px}.lead-figure img{height:128px;max-height:none;object-fit:contain}.lead-figure figcaption{font-size:var(--fs-meta);margin-top:4px}
 .news-section{padding:0;border-left:0}.news-section #news-list{display:block}.news-section .section-heading{padding-top:16px;margin-bottom:0}.news-section h2{font-size:var(--fs-home-section)}.news-item{padding:15px 0}.news-meta{font-size:var(--fs-meta);margin-bottom:6px}.all-news{min-height:48px;font-size:13px}
 .section-heading{margin-bottom:18px;align-items:baseline;gap:14px}.article-card .material-meta{font-size:var(--fs-meta);gap:7px;margin-bottom:8px}.material-meta>span+span:before{margin-right:7px}.material-footer{margin-top:10px}.image-credit{font-size:var(--fs-meta)}
 .articles-section{margin-top:32px;padding-top:22px}.articles-section h2{font-size:var(--fs-home-section)}.article-grid{grid-template-columns:1fr;gap:28px}.article-grid>.article-card:last-child{grid-column:auto}.article-grid>.article-card.has-image:last-child{display:block}.article-grid>.article-card:last-child .story-image-link{aspect-ratio:2.2;margin-bottom:16px}.article-grid .story-image-link{aspect-ratio:1.9}.article-grid [data-material-id="memory"]{padding:18px}.article-grid [data-material-id="memory"] .story-image-link{margin:-18px -18px 16px;aspect-ratio:1.8}.article-grid .material-meta{font-size:var(--fs-meta)}
 .github-section{margin-top:32px;padding:23px 0}.github-heading{gap:12px;align-items:start}.github-heading-title{gap:9px}.github-heading-title>img{width:32px;height:32px}.github-heading-title p{font-size:var(--fs-meta)}.github-heading button{white-space:nowrap}.github-intro{display:block;margin:23px 0 18px}.github-intro h3{font-size:28px;line-height:1.15}.github-intro p{font-size:14px;margin-top:12px}.github-projects{grid-template-columns:1fr;gap:22px}.repo-card{padding-top:15px}.repo-meta{font-size:var(--fs-meta);flex-wrap:nowrap}.repo-card h3{margin-top:14px}.repo-use{margin-top:14px}.repo-card .repo-limit{font-size:13px}.github-source{font-size:var(--fs-meta)}.github-section.standalone .github-heading h2{font-size:34px}.github-section.standalone .github-intro h3{font-size:30px}
 .practical{display:block;padding:28px 0}.practical h2{margin-bottom:13px}.practical-links{grid-template-columns:1fr;gap:0}.practical-links a{font-size:15px;padding:14px 0}.follow{gap:12px 18px;padding:25px 0}.follow h2{font-size:24px;width:100%}.follow p{width:100%;margin-bottom:6px}.follow>a{padding:8px 0}footer{gap:12px 22px;padding-top:20px;padding-bottom:24px;min-height:0;font-size:var(--fs-meta)}footer>span{margin-left:0;width:100%}.footer-brand{font-size:22px}
 #workspace{padding-top:0}#workspace h1{font-size:30px}.panel-intro{font-size:15px}.result :is(h2,h3){font-size:21px;line-height:1.3;font-weight:var(--fw-title)}.demo-layout{grid-template-columns:1fr;gap:28px}.demo-controls{padding:20px}.demo-context{font-size:15px}.search-field{gap:8px}.search-field button{padding:10px 13px}.story-page .bookmark{float:none;margin-bottom:12px}
}
@media(max-width:371px){.brand-line{padding-top:8px;padding-bottom:4px}.topic-bar{margin-left:-14px;margin-right:-14px}.topics{gap:0}.primary-nav{gap:0 18px;font-size:12px}.lead-figure img{height:80px}.port-panel{grid-template-columns:102px minmax(0,1fr);gap:6px 10px}.port-panel img{width:102px}.port-fact strong{font-size:16px}.repo-meta{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.mobile-deck{display:none}
@media(max-width:760px){.primary-nav{gap:0 13px;font-size:12px}.topic-bar{margin-bottom:12px}.desktop-deck{display:none}.mobile-deck{display:inline}.lead-actions{margin-top:4px}.lead-actions .read-link{min-height:32px}.lead-actions .bookmark{min-height:44px;min-width:44px;padding:12px}}

#ranking-status{font-size:14px;color:var(--muted);margin-bottom:16px}
.ranked-news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.more-ranked{margin-top:32px;padding-top:22px;border-top:1px solid var(--line)}.ranked-news-grid .compact-news+.compact-news{padding-top:0;border-top:0}
@media(max-width:760px){.ranked-news-grid{grid-template-columns:1fr;gap:20px}.ranked-news-grid .compact-news+.compact-news{padding-top:16px;border-top:1px solid var(--line)}}

@media(max-width:760px){.lead-figure.is-illustration{display:none}}

/* Existing published section layout: reading column and independent selection rail. */
.workbench-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:0 32px;align-items:start;padding-bottom:36px}
.workbench-main{min-width:0;grid-column:1;grid-row:2}.compact-feed-head{grid-column:1;grid-row:1;min-height:47px;border-bottom:1px solid var(--line);margin-bottom:16px}
#workspace .compact-feed-head h1,.compact-selection-head h2{margin:0;font-size:16px;font-weight:700;line-height:1.2}.compact-selection-head{min-height:47px;flex-shrink:0}
.workbench-rail{grid-column:2;grid-row:1 / span 2;min-width:0;position:sticky;top:20px;max-height:calc(100dvh - 40px);display:flex;flex-direction:column}
.workbench-rail-list{overflow-y:auto;min-height:0;scrollbar-width:thin;overscroll-behavior:contain;border-bottom:1px solid var(--line)}
.workbench-rail-list a{display:flex;gap:10px;align-items:flex-start;border-top:1px solid var(--line);border-left:2px solid transparent;text-align:left;width:100%;padding:14px 10px}
.workbench-rail-list a[aria-current=true]{border-left-color:var(--blue);color:var(--blue)}.workbench-rail-list a>span:last-child{flex:1;min-width:0}.workbench-rail-list strong{display:block;font-size:14px;line-height:1.45;font-weight:600}.workbench-rail-list small{display:block;font:12px/1.5 var(--font-mono);color:var(--muted);margin-top:5px}
.workbench-list-icon{flex:0 0 22px;color:var(--muted);padding-top:2px}.workbench-list-icon :is(svg,img){width:20px;height:20px}
.news-reader-article{min-width:0;padding-bottom:12px;overflow-wrap:anywhere}.news-reader-article h2{margin:10px 0 12px;font-size:24px;line-height:1.25;font-weight:700;letter-spacing:-.025em;text-wrap:pretty}.news-reader-article h2[tabindex]:focus{outline:none}.news-reader-article p{margin:12px 0;font-size:16px;line-height:1.65;text-wrap:pretty}.news-reader-article .news-reader-lead{font-size:17px;line-height:1.55;color:var(--muted)}.news-reader-article figure{margin:18px 0}.news-reader-article figure img{width:100%;height:auto;max-height:360px;object-fit:contain}.news-reader-article figcaption{font-size:12px;line-height:1.45;margin-top:7px;color:var(--muted)}
.news-reader-body h3{margin:20px 0 10px;font-size:20px}.news-reader-body :is(a),.news-reader-sources a,.workbench-primary-link{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.news-reader-body ul,.news-reader-body ol{padding-left:24px}.news-reader-body li{margin:8px 0}.news-reader-body pre{max-width:100%;overflow:auto;font-size:13px;background:var(--soft);padding:12px}.news-reader-body table{display:block;overflow-x:auto;border-collapse:collapse;max-width:100%;font-size:14px}.news-reader-body td,.news-reader-body th{padding:8px;border:1px solid var(--line)}.news-reader-sources{border-top:1px solid var(--line);padding:14px 0;margin:20px 0;font-size:14px}.news-reader-sources h3{font-size:16px;margin-bottom:10px}.news-reader-sources a{display:block;margin:8px 0}.workbench-primary-link{font-size:14px;display:inline-block;min-height:44px;padding:8px 0}
.news-reader-following-heading{display:flex;justify-content:space-between;gap:16px;align-items:baseline;margin-bottom:16px}.news-reader-following-heading h2{font-size:20px}.news-reader-following-heading span{font-size:12px;color:var(--muted)}.news-reader-following .news-reader-article{border-top:1px solid var(--line);padding-top:16px}.workbench-footer-link{border:0;border-top:1px solid var(--line);background:transparent;color:var(--blue);padding:14px 0;min-height:44px;width:100%;text-align:left}
.mobile-publication-block{display:none}.mobile-workbench-dialog{position:fixed;inset:auto 0 0;margin:0 auto;width:100%;max-width:600px;max-height:80dvh;padding:0 16px max(16px,env(safe-area-inset-bottom));border:1px solid var(--line);border-radius:16px 16px 0 0;background:white;color:var(--ink);overflow:hidden}.mobile-workbench-dialog[open]{display:flex;flex-direction:column}.mobile-workbench-dialog::backdrop{background:rgb(0 0 0 / .45)}.mobile-workbench-dialog-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-shrink:0;min-height:64px}.mobile-workbench-dialog-head h2{font-size:15px;line-height:1.4}.mobile-workbench-dialog-head button{min-height:44px;padding:8px;background:none;border:0;font-size:13px}.mobile-workbench-dialog .workbench-rail-list{overflow-y:auto;min-height:0}.workbench-rail-list a:focus-visible{outline-offset:-3px}
@media(max-width:760px), (pointer:coarse) and (max-width:1000px) and (max-height:500px){
 .workbench-layout{grid-template-columns:minmax(0,1fr)}.workbench-rail{display:none}.workbench-main{grid-column:1;grid-row:3;scroll-margin-top:12px}.news-reader-article h2{font-size:22px}.news-reader-article p{font-size:15px}.news-reader-article .news-reader-lead{font-size:16px}.news-reader-article figure img{max-height:300px}
 .mobile-publication-block{display:block;grid-column:1;grid-row:2;min-width:0;margin:8px 0 16px}.mobile-publication-heading{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:4px;font-size:12px}.mobile-publication-heading span{color:var(--muted);font:12px var(--font-mono)}.mobile-publication-strip{display:flex;gap:8px;min-width:0;overflow-x:auto;overscroll-behavior-x:contain;padding:4px 0 10px;scrollbar-width:thin;scroll-snap-type:x proximity}.mobile-publication-card{display:flex;flex:0 0 230px;flex-direction:column;justify-content:space-between;gap:8px;min-width:0;min-height:96px;padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius);background:white;scroll-snap-align:start}.mobile-publication-card[aria-current=true]{border-color:var(--blue);box-shadow:inset 0 -2px var(--blue)}.mobile-publication-meta{color:var(--muted);font:12px/1.4 var(--font-mono)}.mobile-publication-card strong{display:-webkit-box;overflow:hidden;font-size:13px;line-height:1.35;font-weight:650;-webkit-box-orient:vertical;-webkit-line-clamp:3}.mobile-publication-all{flex:0 0 132px;min-width:132px;border-style:dashed;text-align:left;font-size:12px}.mobile-publication-all strong{display:block;overflow:visible}.mobile-publication-card:focus-visible{outline-offset:-3px}
}

/* Thumbnails identify the actual publication. */

.reading-thumbnail{display:block;flex:0 0 64px;width:64px;height:44px;object-fit:cover;border-radius:3px;background:var(--soft)}
.compact-news::after,.news-item::after{content:'';display:block;clear:both}.compact-news>.reading-thumbnail,.news-item>.reading-thumbnail{float:right;margin:3px 0 8px 12px}.mobile-publication-card .reading-thumbnail{float:none;width:56px;height:40px;flex-basis:auto}.mobile-publication-card:has(.reading-thumbnail){display:grid;grid-template-columns:minmax(0,1fr) 56px}.mobile-publication-card .reading-thumbnail{grid-column:2;grid-row:1/3}.mobile-publication-card :is(strong,.mobile-publication-meta){grid-column:1}
.publication-layout .workbench-main{grid-row:1}.publication-layout .workbench-rail{grid-row:1}#workspace .news-reader-article>h1{font:700 28px/1.25 var(--font-sans);letter-spacing:-.025em;margin:10px 0 12px;text-wrap:pretty}
@media(max-width:760px){#workspace .news-reader-article>h1{font-size:24px}.publication-layout .workbench-main{grid-row:1}}

/* Mobile review: preserve the page structure, expose the existing list control. */
html:has(.mobile-workbench-dialog[open]){overflow:hidden}
.mobile-picker-link{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:6px 0;border:0;background:none;font:600 12px/1.4 var(--font-sans);color:var(--blue);text-align:left}
.mobile-picker-link span{color:inherit;font:inherit}
@media(max-width:760px), (pointer:coarse) and (max-width:1000px) and (max-height:500px){
 .compact-feed-head{min-height:0;padding-bottom:12px;margin-bottom:0}
 .mobile-publication-block{margin-top:0}
 .mobile-publication-heading{margin-bottom:0}
}

/* The homepage preview shares catalogue records and keeps navigation compact. */
.github-preview .repo-card{display:flex;flex-direction:column}
.github-preview .repo-meta{flex-wrap:wrap;gap:8px 16px}
.github-preview .repo-card>p{margin-bottom:16px}
 .github-preview .repo-footer{justify-content:flex-end;margin-top:auto;min-height:44px}
.github-preview .github-projects{margin-top:24px}
@media(max-width:760px){.github-preview .github-projects{gap:16px;margin-top:20px}.github-preview .repo-card h3{margin-top:10px}}