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.gallery-credit{font-size:9px;color:var(--muted);margin:22px 0 0}.filter{min-height:36px}@media(max-width:480px){.hero h1{font-size:clamp(60px,21.5vw,88px)}.filter{min-height:40px}}

@media(max-width:360px){.header-inner>.brand{font-size:24px;gap:8px}.header-inner>.brand .wave{width:25px}.header-tools{gap:12px}.languages{font-size:9px;gap:7px}}

.hero-water{position:absolute;inset:0;width:100%;height:100%;z-index:-2;pointer-events:none}.hero-shade{z-index:-1}.hero-motion{position:absolute;top:24px;right:39px;z-index:3;display:grid;place-items:center;width:35px;height:35px;padding:0;color:#f6f4ed;background:#103b3559;border:1px solid #ffffff80;border-radius:50%;font:16px/1 var(--sans)}.hero-motion:hover{background:#103b35a6}.hero-motion[hidden],.hero-water[hidden]{display:none}@media(max-width:480px){.hero-motion{top:20px;right:27px;width:31px;height:31px}}
.filter-count{font-size:8px;opacity:.7;margin-left:5px}.topic-overview{padding-block:55px 60px;border-bottom:1px solid var(--line)}.topics-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:35px;margin-bottom:35px}.topics-heading .eyebrow{color:#59746a;margin-bottom:18px}.topics-heading h2{font-size:40px;line-height:1.16;margin-bottom:0}.topics-heading .text-link{white-space:nowrap;align-self:flex-end}.topic-tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}.topic-tiles>a{display:flex;flex-direction:column;border-top:1px solid #aebcab;padding-top:18px}.topic-tiles h3{font-size:25px;line-height:1.2;margin:17px 0 12px}.topic-tiles p{font-size:12px;color:#667269;line-height:1.8;flex:1}.topic-tile-count{font-size:10px;display:flex;justify-content:space-between;align-items:center;padding-top:12px;color:#59746a}.topic-tiles>a:hover h3{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}.topic-directory{padding-block:10px 80px}.topic-directory-group{display:grid;grid-template-columns:1fr 1.7fr;gap:8%;padding-block:45px 48px;border-top:1px solid var(--line);scroll-margin-top:35px}.topic-directory-heading .eyebrow{color:#59746a;margin-bottom:20px}.topic-directory-heading h2{font-size:39px;margin-bottom:20px}.topic-directory-heading p{font-size:13px;line-height:1.8;color:#667269;max-width:270px}.topic-directory-row{display:flex;align-items:center;justify-content:space-between;gap:25px;padding-block:22px;border-bottom:1px solid var(--line)}.topic-directory-row:first-child{padding-top:0}.topic-directory-row h3{font-size:27px;line-height:1.2;margin-bottom:8px}.topic-directory-row p{font-size:12px;color:#667269;line-height:1.8;margin-bottom:0}.topic-directory-row>span{font-size:23px;color:#59746a}.topic-directory-row:hover h3{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}.topic-editorial{border-top:1px solid var(--line);padding-top:40px}.topic-editorial .eyebrow{color:#59746a;margin-bottom:19px}.topic-editorial h2{font-size:38px;margin-bottom:15px}.topic-editorial p{font-size:14px;color:#667269;max-width:650px}.reading-body .citation{font-family:var(--sans);font-size:11px;vertical-align:super;text-decoration:none!important;white-space:nowrap}.source-list{padding-left:20px;margin:18px 0}.source-list li{padding-left:7px;scroll-margin-top:30px;margin-bottom:20px;font-size:11px;color:#59746a}.source-list li p{margin-top:4px}.source-box .source-explainer{font-size:11px;color:#64765f}.source-page .source-list p{font-size:13px}.source-page .source-list .source-explainer{font-size:12px;color:#667269}.source-page>section{border-top:1px solid var(--line);padding-top:12px}
@media(max-width:800px){.topics-heading h2{font-size:35px}.topics-heading{display:block}.topics-heading .text-link{margin-top:22px}.topic-tiles{grid-template-columns:repeat(2,1fr);gap:28px 24px}.topic-overview{padding-block:45px}.topic-directory-group{grid-template-columns:1fr;gap:20px;padding-block:30px 40px}.topic-directory-heading h2{font-size:35px;margin-bottom:13px}.topic-directory-heading p{max-width:100%}.topic-directory-row h3{font-size:27px}.topic-directory-row:first-child{padding-top:10px}.topic-directory{padding-bottom:50px}.topic-editorial h2{font-size:33px}}
@media(max-width:480px){.topics-heading h2{font-size:32px}.topic-tiles{gap:28px 18px}.topic-tiles h3{font-size:23px}.topic-tiles p{font-size:11px}.topic-directory-row h3{font-size:25px}.filter-count{font-size:7px}.source-box{padding-inline:18px}.source-list{padding-left:17px}.source-list li{padding-left:3px}}

/* The opening trio leads; the topic map separates it from the full remaining collection. */
.featured-stories .card-link{display:flex;flex-direction:column;height:100%}.featured-stories .card-image{flex-shrink:0}.featured-stories .card-read{margin-top:auto}
.featured-stories{padding-block:20px 60px;scroll-margin-top:30px}.featured-stories .stories{grid-template-columns:repeat(3,minmax(0,1fr))}.featured-stories .card-image{aspect-ratio:1.35}.featured-stories+.topic-overview{padding-top:45px;border-top:1px solid var(--line)}
@media(max-width:800px){.featured-stories{padding-block:10px 45px}.featured-stories .stories{grid-template-columns:1fr;gap:38px}.featured-stories .card-image{aspect-ratio:1.6}.featured-stories .story-card h3,.featured-stories .story-card p{max-width:100%}.featured-stories .card-meta{font-size:9px}.featured-stories .story-card h3{font-size:34px}.featured-stories .story-card p{font-size:14px}.featured-stories+.topic-overview{padding-top:40px}}
@media(max-width:480px){.featured-stories .story-card h3{font-size:31px}.featured-stories .card-image{aspect-ratio:1.5}}

/* An accessible, deliberately non-proportional chronology with explicit evidence types. */
.reading-body .word-timeline{background:#e9ece1;border-top:3px solid #839a77;padding:32px 30px 25px;margin-block:45px}.word-timeline>.eyebrow{color:#59746a;font-size:9px;margin-bottom:18px}.reading-body .word-timeline>h2{font-size:35px;margin-bottom:18px}.reading-body .timeline-intro{font-size:14px;line-height:1.8;margin-bottom:30px}.timeline-events{list-style:none;margin:0;padding:0}.timeline-event{display:grid;grid-template-columns:118px minmax(0,1fr);gap:22px;position:relative;padding-bottom:30px}.timeline-event:not(:last-child)::before{content:'';position:absolute;left:129px;top:12px;bottom:-12px;width:1px;background:#b2bfaa}.timeline-date{font:22px/1.25 var(--serif);letter-spacing:-.03em;padding-top:1px}.timeline-detail{position:relative;padding-left:22px}.timeline-detail::before{content:'';position:absolute;left:-16px;top:5px;width:10px;height:10px;border:2px solid #376b59;border-radius:50%;background:#e9ece1}.timeline-device .timeline-detail::before{border-color:#9a6a45}.timeline-text .timeline-detail::before{background:#376b59}.timeline-dictionary .timeline-detail::before{border-radius:2px;background:#376b59}.timeline-kind{font-size:8px;line-height:1.6;letter-spacing:.1em;text-transform:uppercase;color:#59746a}.timeline-device .timeline-kind{color:#835737}.reading-body .timeline-detail h3{font-size:24px;line-height:1.2;margin:9px 0 12px}.reading-body .timeline-detail p{font-size:13px;line-height:1.8;margin:0}.reading-body .timeline-footnote{font-size:11px;line-height:1.8;border-top:1px solid #c1cbb7;padding-top:18px;margin:0;color:#59705f}
@media(max-width:600px){.reading-body .word-timeline{padding:26px 20px 23px;margin-block:35px}.reading-body .word-timeline>h2{font-size:31px}.timeline-event{grid-template-columns:1fr;gap:9px;padding-left:24px;padding-bottom:28px}.timeline-event:not(:last-child)::before{left:0;top:12px;bottom:-12px}.timeline-date{font-size:23px}.timeline-detail{position:static;padding-left:0}.timeline-detail::before{left:-6px;top:6px}.reading-body .timeline-detail h3{font-size:25px}.timeline-kind{font-size:8px}.reading-body .timeline-detail p{font-size:13px}.reading-body .timeline-intro{font-size:13px}}

/* Original explanatory diagram: symbolic counts, never presented as study measurements. */
.reading-body .selection-explainer{margin-block:40px;padding:30px 26px;background:#e9ece1;border-top:3px solid #839a77}.selection-explainer>.eyebrow{font-size:9px;color:#59746a;margin-bottom:18px}.reading-body .selection-explainer>h2{font-size:34px;line-height:1.2}.reading-body .selection-intro{font-size:13px;line-height:1.8}.selection-legend{display:flex;gap:20px;flex-wrap:wrap;border-bottom:1px solid #bdc8b4;padding-bottom:20px;margin:22px 0}.selection-legend>span{display:flex;align-items:center;gap:8px;font-size:10px;color:#566959}.selection-bird{width:35px;height:32px;fill:#316650;flex-shrink:0}.selection-bird.beak-large{fill:#9a633b}.selection-bird .bird-beak{fill:#233e30}.selection-bird .bird-eye{fill:#f6f4ed}.selection-bird .bird-legs{fill:none;stroke:currentColor;stroke-width:1.4}.selection-stages{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.selection-stages>li{min-width:0}.reading-body .selection-stages h3{font-size:23px;line-height:1.2;margin:13px 0 20px;min-height:56px}.selection-flock{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px 2px;min-height:72px;align-content:start}.selection-flock .selection-bird{width:100%;max-width:38px;height:32px}.reading-body .selection-stages p{font-size:12px;line-height:1.8;margin-bottom:0}.reading-body .selection-stages .selection-count{font-size:10px;color:#395a45;border-block:1px solid #c2cbb9;padding-block:10px;margin-block:15px;min-height:57px}.reading-body .selection-footnote{font-size:11px;line-height:1.8;margin:26px 0 0;padding-top:18px;border-top:1px solid #bdc8b4;color:#59705f}
@media(max-width:650px){.reading-body .selection-explainer{padding:26px 20px}.reading-body .selection-explainer>h2{font-size:30px}.selection-stages{grid-template-columns:1fr;gap:28px}.selection-stages>li{border-bottom:1px solid #bdc8b4;padding-bottom:22px}.selection-stages>li:last-child{border:0;padding-bottom:0}.reading-body .selection-stages h3{min-height:0;font-size:27px;margin-block:10px 18px}.selection-flock{grid-template-columns:repeat(8,minmax(0,1fr));gap:4px;min-height:36px}.selection-legend{gap:12px}.reading-body .selection-stages .selection-count{min-height:0;margin-block:13px}.reading-body .selection-stages p{font-size:13px}}

/* Explanatory cards retain the distinction between observations, mechanisms and limits. */
.reading-body .editorial-explainer{margin-block:42px;padding:30px 26px;background:#e9ece1;border-top:3px solid #839a77}.editorial-explainer>.eyebrow{font-size:9px;color:#59746a;margin-bottom:18px}.reading-body .editorial-explainer>h2{font-size:34px;line-height:1.2}.reading-body .explanation-intro{font-size:14px;line-height:1.8}.explanation-steps{list-style:none;padding:0;margin:28px 0 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}.explanation-steps[data-steps="4"]{grid-template-columns:repeat(2,minmax(0,1fr))}.explanation-steps>li{min-width:0;border-top:1px solid #b8c4ae;padding-top:18px}.explanation-label{display:block;font-size:8px;line-height:1.6;letter-spacing:.08em;text-transform:uppercase;color:#59746a;overflow-wrap:anywhere}.reading-body .explanation-steps h3{font-size:24px;line-height:1.2;margin:10px 0 15px;overflow-wrap:break-word}.reading-body .explanation-steps p{font-size:13px;line-height:1.8;margin:0}.reading-body .explanation-footnote{font-size:11px;line-height:1.8;margin:27px 0 0;border-top:1px solid #bdc8b4;padding-top:18px;color:#59705f}.patina-layers{margin-block:27px 35px;border:1px solid #aab99d}.patina-layers>div{padding:20px;font-size:12px;line-height:1.6}.layer-air{background:#f5f5ec;color:#536858}.layer-products{background:linear-gradient(110deg,#3a7461,#7f9d72,#37665d);color:#fff;border-bottom:3px solid #76563e}.layer-metal{background:linear-gradient(100deg,#a9623d,#ce9a6c);color:#1d3528;font-weight:600}
@media(max-width:650px){.reading-body .editorial-explainer{padding:26px 20px}.reading-body .editorial-explainer>h2{font-size:30px}.explanation-steps,.explanation-steps[data-steps="4"]{grid-template-columns:1fr;gap:25px}.reading-body .explanation-steps h3{font-size:27px}.reading-body .explanation-steps p{font-size:14px}.explanation-label{min-height:32px;display:flex;align-items:center}.patina-layers>div{padding:17px;font-size:11px}}

/* Clearer destinations: identity first, full navigation on its own row. */
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/* Progress and section position share the existing left-hand contents column. */
.reading-layout aside{max-height:calc(100svh - 60px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:#b8c4ae transparent}.reading-progress{max-width:200px;margin-bottom:24px;background:var(--paper)}.reading-progress-label{display:flex;justify-content:space-between;gap:15px;font-size:10px;line-height:1.5;color:#59746a}.reading-progress-value{font-weight:600;font-variant-numeric:tabular-nums}.reading-progress progress{display:block;appearance:none;border:0;border-radius:3px;overflow:hidden;width:100%;height:4px;margin-top:12px;background:#d8dfc7;color:#77945b}.reading-progress progress::-webkit-progress-bar{background:#d8dfc7;border-radius:3px}.reading-progress progress::-webkit-progress-value{background:#77945b;border-radius:3px}.reading-progress progress::-moz-progress-bar{background:#77945b;border-radius:3px}.reading-layout aside .article-toc{border-left:1px solid #bdc9b1;padding-left:16px;gap:0}.reading-layout aside .article-toc a{position:relative;display:block;padding:8px 0;max-width:none;font-size:11px;line-height:1.65}.article-toc a::before{content:'';position:absolute;left:-19px;top:14px;width:5px;height:5px;border-radius:50%;background:#c1cdb6}.reading-layout aside .article-toc a[aria-current="location"]{color:var(--ink);font-weight:700;text-decoration:none}.article-toc a[aria-current="location"]::before{width:7px;height:7px;left:-20px;background:#77945b}.article-toc a.is-past::before{background:#91a77a}.source-box{scroll-margin-top:30px}
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/* Full journal illustrations, never cropped by a fixed-height frame. */
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/* A short homepage introduces the collection; the collection has its own page. */
.topic-overview{position:relative;scroll-margin-top:30px}.legacy-anchor{position:absolute;top:0}.overview-actions{display:flex;align-items:center;gap:25px;margin-top:35px}.overview-actions p{font-size:12px;color:var(--muted);margin:0}.collection-heading{padding-bottom:40px}.story-collection{padding-top:0}.collection-count{font-size:11px;color:var(--muted);margin:18px 0 30px}.collection-heading .text-link{margin-top:8px}.topics-breadcrumb{padding-top:30px}.topics-breadcrumb .breadcrumbs{margin-bottom:25px}.topics-hero-scene{position:relative;isolation:isolate;min-height:480px;display:flex;align-items:flex-end;overflow:hidden;background:#26443d;color:#fff}.topics-hero-images{position:absolute;inset:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));z-index:-2;gap:3px}.topics-hero-images img{width:100%;height:100%;object-fit:cover}.topics-hero-scene::after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(0deg,rgba(8,29,25,.94),rgba(8,29,25,.54) 48%,rgba(8,29,25,.07))}.topics-hero-copy{padding:90px 50px 45px;max-width:900px}.topics-hero-copy .eyebrow{color:#eff1e3;font-size:10px}.topics-hero h1{font-size:clamp(55px,6.4vw,93px);margin:24px 0;line-height:.98}.topics-hero-copy p{font-size:16px;line-height:1.7;margin:0;color:#f0f0e6}.topics-hero figcaption{font-size:9px;color:var(--muted);margin-top:12px}.topic-jumps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:25px;padding-block:35px 40px}.topic-jumps a{border-bottom:1px solid var(--line);padding-bottom:15px;font-size:12px;display:flex;justify-content:space-between;align-items:center;gap:10px}.topic-jumps a span{white-space:nowrap;color:#59746a}.topic-jumps a:hover{border-color:var(--green)}
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.featured-stories .section-heading{margin-bottom:22px}.featured-connection{max-width:760px;font-size:15px;line-height:1.85;color:var(--muted);margin-bottom:35px}
@media(max-width:800px){.featured-connection{font-size:14px;margin-bottom:30px}}

/* The main address is a complete bilingual entry, with no automatic redirect. */
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/* Locally rendered activities and external editorial recommendations. */
.interactive-teaser{display:grid;grid-template-columns:1fr 1fr;gap:5rem;padding-block:5rem;border-top:1px solid var(--line,#d5d2c7)}
.interactive-teaser h2{font-size:clamp(2rem,4vw,3.5rem);line-height:1.1;margin:.8rem 0 1.5rem}.interactive-teaser p{max-width:40rem;margin-bottom:2rem}.interactive-teaser-links{display:grid;align-content:center}.interactive-teaser-links a{padding:1.3rem 0;border-bottom:1px solid #ccc8bc;display:flex;justify-content:space-between;gap:1rem;text-decoration:none;font-size:1.2rem}.experiment-jumps{display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;margin:2rem 0}.experiment-jumps a{padding:.7rem 0}.experiments-page{max-width:1100px}.experiment{padding:2.3rem;background:#eeece2;border:1px solid #d8d4c6;margin:3rem 0;scroll-margin-top:8rem}.experiment h2{font-size:clamp(1.7rem,3vw,2.7rem);line-height:1.15;margin:.7rem 0 1.2rem}.experiment h3{font-size:1.3rem}.experiment p{line-height:1.65}.experiment-controls{display:flex;flex-wrap:wrap;align-items:center;gap:1rem;margin:1.4rem 0}.experiment-controls[hidden],.trace-answers[hidden]{display:none}.experiment-controls label{display:block;flex:1 1 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#716f60}.moth-field.dark-bark{background-color:#42453e;background-image:repeating-radial-gradient(ellipse at 20% 10%,transparent 0 9px,#d4c7aa33 10px 12px,transparent 13px 21px)}.experiment .moth{position:absolute;display:grid;place-items:center;width:44px;height:44px;min-height:44px;padding:5px;border:2px solid transparent;background:transparent;border-radius:50%}.moth svg{width:32px;height:28px;fill:currentColor}.experiment .moth-light{color:#d9d3be}.experiment .moth-dark{color:#42453e}.experiment .moth:hover{background:transparent}.experiment .moth.found{outline:2px solid #a04f32;outline-offset:1px;background:#ffffff44}.population-bar{height:30px;display:flex;border:1px solid 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#202a24}.comparison-label{display:none;position:absolute;bottom:7px;background:#142a24;color:white;padding:3px 8px;font:600 .8rem system-ui}.is-interactive .comparison-label{display:block}.before-label{left:7px}.after-label{right:7px}.comparison-figure figcaption{font-size:.75rem;line-height:1.6;margin-top:.6rem}.clock-axis{display:flex;justify-content:space-between;gap:.5rem;font-size:.7rem;border-bottom:2px solid #315a4c;padding:1rem 0}.clock-axis span{max-width:20%;overflow-wrap:anywhere}.clock-item{position:relative;border-bottom:1px solid #c8ccbf;padding:1.5rem 0 1rem}.clock-item h3{margin:.4rem 0}.clock-item p{margin:.5rem 0}.clock-item a{font-size:.9rem}.clock-dot{position:absolute;top:0;left:50%;width:9px;height:9px;background:#365c52;border-radius:50%;transform:translateX(-50%)}.clock-dot:before{content:'';position:absolute;width:1px;height:14px;top:-8px;background:#365c52;left:4px}.clock-item[hidden],.clock-empty[hidden]{display:none}.trace-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem}.trace-card{min-width:0;background:#f9f7f0;padding:1rem}.trace-card img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;margin-bottom:.7rem}.trace-answers{display:grid;gap:.5rem}.trace-answers button{text-align:left;font-size:.87rem;line-height:1.4}.trace-answers button[aria-pressed=true]{background:#d9e5dc;border:2px solid #315a4c}.trace-explanation{margin-top:1rem;font-size:.9rem}.experiment details summary{cursor:pointer;padding:.7rem 0;min-height:44px}.trace-result{font-size:.9rem;font-weight:600}.watch-section{margin:3rem 0;padding-top:2rem;border-top:1px solid #c8c5b9;scroll-margin-top:7rem}.watch-section h2{margin:.8rem 0 1rem}.watch-card{background:#e8ede5;border-left:3px solid #496851;padding:1.5rem;margin:1.4rem 0}.watch-card h3{margin:.4rem 0 .8rem;font-size:1.4rem}.watch-meta,.watch-availability{font-size:.8rem}.watch-question{font-size:.94rem}.watch-section .small{font-size:.8rem;line-height:1.65}.reading-body .experiment{padding:1.5rem}.reading-body .trace-cards{grid-template-columns:1fr}.reading-body .experiment h2{font-size:1.8rem}.main-nav{flex-wrap:wrap}.main-nav a{white-space:nowrap}
@media(max-width:800px){.interactive-teaser{grid-template-columns:1fr;gap:2rem;padding-block:3rem}.experiment{padding:1.2rem;margin:2rem 0}.trace-cards{grid-template-columns:1fr}.experiment-controls{gap:.7rem}.experiment-controls label{flex-basis:100%}.moth-field{height:280px}.reading-body .experiment{padding:1rem}.watch-card{padding:1.1rem}.clock-axis{font-size:.63rem}}