@font-face{font-family:DM Sans;src:url(/fonts/sans.woff2) format("woff2");font-weight:100 900;font-display:swap}@font-face{font-family:Newsreader;src:url(/fonts/serif.woff2) format("woff2");font-weight:200 800;font-display:swap}:root{--bg:#f4f4ec;--surface:#fffef9;--ink:#253326;--muted:#65715f;--line:#d7dcca;--accent:#3e5734;--tint:#e6edda;--highlight:#e9edb2;--shadow:0 18px 70px #27301d16;--reader-size:20px;color-scheme:light}:root[data-theme=dark]{--bg:#172019;--surface:#202b22;--ink:#edf0df;--muted:#b3c0a8;--line:#3a493b;--accent:#c8dfa7;--tint:#2d3c2c;--highlight:#405537;--shadow:0 18px 70px #0005;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:DM Sans,Arial,sans-serif;font-size:15px;line-height:1.6}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer;color:inherit}button:disabled{opacity:.4;cursor:default}a{color:inherit;text-underline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}button{border:0;background:none}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:500}svg{width:20px;height:20px;vertical-align:middle;flex:none;stroke-width:1.7}button svg{pointer-events:none}button span{pointer-events:none}[hidden]{display:none!important}.skip-link{position:fixed;top:-80px;left:16px;z-index:1000;background:var(--ink);color:var(--bg);padding:12px}.skip-link:focus{top:10px}.site-header{border-bottom:1px solid var(--line);height:82px;display:flex;align-items:center;justify-content:space-between;padding:0 max(28px,calc((100vw - 1280px)/2));gap:20px;background:var(--bg)}.brand{text-decoration:none;font-size:25px;letter-spacing:-1.3px;font-weight:550;display:flex;align-items:center;gap:12px;white-space:nowrap}.brand-mark{width:30px;height:35px}.brand small{font-size:14px;letter-spacing:-.3px;font-weight:400;align-self:flex-end;margin-bottom:7px;color:var(--muted)}.header-nav{display:flex;align-items:center;gap:26px}.nav-link{padding:8px 0;text-decoration:none;font-size:13px}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border:1px solid var(--line);border-radius:50%;background:var(--surface)}.eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:1.8px;font-weight:650;color:var(--muted)}.landing{max-width:1280px;margin:auto;padding:72px 28px 44px}.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:88px;align-items:center}.hero-copy .eyebrow{display:flex;align-items:center;gap:8px}.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block}.hero-copy h1{font-family:Newsreader,Georgia,serif;font-size:clamp(52px,5.3vw,78px);line-height:1.02;letter-spacing:-2.8px;margin:25px 0 26px;max-width:650px}.hero-copy h1 em{font-style:normal;color:var(--accent)}.hero-description{max-width:450px;font-size:17px;line-height:1.7;color:var(--muted)}.hero-links{display:flex;align-items:center;gap:24px;margin-top:28px}.text-button{padding:4px 0;border-bottom:1px solid currentColor;font-size:13px;display:inline-flex;align-items:center;gap:10px}.subtle-note{font-size:12px;color:var(--muted)}.add-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:28px}.add-card h2{font-family:Newsreader,Georgia,serif;font-size:32px;letter-spacing:-.8px;line-height:1.2}.add-intro{color:var(--muted);font-size:13px;margin-top:8px}.input-tabs{display:flex;gap:2px;border-bottom:1px solid var(--line);margin:23px 0 20px}.input-tabs button{flex:1;font-size:13px;padding:11px 8px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px;display:flex;gap:7px;justify-content:center;align-items:center}.input-tabs [aria-selected=true]{color:var(--accent);border-color:var(--accent);font-weight:600}.dropzone{border:1px dashed #a9b599;border-radius:11px;padding:25px 12px 21px;text-align:center;background:var(--bg)}.dropzone.dragging{background:var(--tint);border-color:var(--accent)}.upload-icon{display:inline-flex;align-items:center;justify-content:center;width:43px;height:43px;background:var(--tint);border-radius:11px;margin-bottom:12px;color:var(--accent)}.dropzone p{font-size:13px;color:var(--muted);margin-bottom:15px}.primary-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:var(--accent);color:var(--surface);border:1px solid var(--accent);border-radius:7px;padding:12px 22px;font-size:13px;font-weight:550;min-height:46px}:root[data-theme=dark] .primary-button{color:var(--bg)}.primary-button:hover{filter:brightness(1.1)}.secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--line);background:var(--surface);border-radius:7px;padding:10px 16px;font-size:13px}.file-note{font-size:11px;color:var(--muted);margin-top:11px}.privacy-line{display:flex;gap:7px;align-items:flex-start;margin-top:18px;font-size:11px;color:var(--muted)}.privacy-line svg{width:14px;height:14px;margin-top:2px}.doi-form{min-height:204px;display:flex;flex-direction:column;justify-content:center}.doi-form label{font-size:12px;font-weight:600;margin-bottom:9px}.doi-form input,.search-input,.filter-select{color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:7px;padding:12px;width:100%;min-width:0}.doi-form .primary-button{margin-top:13px;width:100%}.doi-note{font-size:11px;color:var(--muted);margin-top:13px}.form-error{padding:12px 14px;border:1px solid #bc8064;background:#bc806410;border-radius:8px;font-size:13px;margin-top:15px}.preparing{padding:28px 0}.preparing h3{font-family:Newsreader,Georgia,serif;font-size:25px;margin:15px 0 7px}.progress-track{height:6px;background:var(--line);border-radius:8px;margin:23px 0 12px;overflow:hidden}.progress-bar{height:100%;background:var(--accent);transition:width .2s}.prep-bottom{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted)}.prep-spinner{width:32px;height:32px;border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin 1.1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.example-section{margin-top:76px;border-top:1px solid var(--line);padding-top:35px;display:grid;grid-template-columns:1fr 1.8fr;gap:70px;align-items:center}.example-label h2{font-family:Newsreader,Georgia,serif;font-size:33px;line-height:1.2;margin:10px 0 12px;letter-spacing:-.8px}.example-label p{font-size:13px;color:var(--muted);max-width:270px}.example-text{font-family:Newsreader,Georgia,serif;font-size:27px;line-height:1.65;padding:0 8px;position:relative}.example-text .eyebrow{font-family:DM Sans,Arial,sans-serif;margin-bottom:14px;font-size:10px}.term{display:inline;padding:0;border-radius:2px;border-bottom:1px dotted var(--accent);background:var(--tint);color:inherit;font-family:inherit;font-size:inherit;font-weight:inherit;line-height:inherit;text-align:left}.term:hover,.term[aria-expanded=true]{background:var(--highlight);border-bottom-color:transparent}.term-popover{position:fixed;width:340px;max-width:calc(100vw - 24px);z-index:80;background:var(--surface);border:1px solid var(--line);padding:22px;border-radius:12px;box-shadow:0 14px 44px #0003;line-height:1.6}.term-popover h3{font-size:23px;font-family:Newsreader,Georgia,serif;line-height:1.2;margin:8px 25px 11px 0}.term-popover p{font-size:13px}.term-popover .popover-close{position:absolute;right:10px;top:10px}.term-popover .reference-link{display:block;font-size:11px;margin-top:14px;color:var(--muted)}.definition-note{font-size:10px!important;color:var(--muted);border-top:1px solid var(--line);padding-top:10px;margin-top:14px}.how-section{margin-top:66px;padding-top:36px;border-top:1px solid var(--line)}.how-section h2{font-family:Newsreader,Georgia,serif;font-size:34px;margin:10px 0 30px;letter-spacing:-.9px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}.step-number{font-family:Newsreader,Georgia,serif;font-size:24px;color:var(--muted);margin-bottom:11px}.steps h3{font-size:15px;margin-bottom:9px}.steps 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strong{font-weight:600;display:block;margin-bottom:3px}.fallback-note details{margin-top:6px;font-size:11px;color:var(--muted)}.original-frame{background:#fff;position:relative;border:1px solid #ddd;line-height:0;min-height:140px}.original-frame canvas{max-width:100%;display:block}.original-frame .hotspot{position:absolute;background:#96ab671c;border-bottom:1px dotted #435e3488;padding:0;min-height:2px;border-radius:1px}.hotspot:hover,.hotspot[aria-expanded=true]{background:#bfd38088}.source-options{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:12px 0 26px;font-size:10px;color:var(--muted)}.source-options button{font-size:11px;padding:0;display:flex;gap:7px;align-items:center}.source-options svg{width:14px;height:14px}.transcript{font-size:12px;color:var(--muted);margin-top:20px;border-top:1px solid var(--line);padding-top:14px}.transcript summary{cursor:pointer;margin-bottom:14px}.transcript .article-text{font-size:calc(var(--reader-size) - 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19px;box-shadow:var(--shadow);max-width:calc(100vw - 30px);font-size:12px;text-align:center}.danger-button{color:#a94735!important}:root[data-theme=dark] .danger-button{color:#efab94!important}@media(min-width:1600px){.hero-grid{gap:115px}.landing{padding-top:84px}.hero-copy h1{font-size:82px}.reader-content{padding-left:70px;padding-right:70px}}@media(max-width:1150px){.hero-grid{gap:45px}.reader-layout{grid-template-columns:180px minmax(0,1fr)}.reader-context{display:none}.reader-content{padding-left:35px;padding-right:35px}.reader-heading h1{font-size:30px}.hero-copy h1{font-size:64px}.paper-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:850px){.site-header{height:72px;padding:0 24px}.header-nav{gap:18px}.nav-how{display:none}.landing{padding-top:48px}.hero-grid{grid-template-columns:1fr 1fr;gap:30px}.hero-copy h1{font-size:51px;letter-spacing:-1.8px}.hero-description{font-size:15px}.add-card{padding:21px}.add-card h2{font-size:28px}.example-section{gap:34px;grid-template-columns:1fr 1.5fr;margin-top:55px}.example-text{font-size:23px}.example-label h2{font-size:29px}.hero-links{gap:15px;flex-wrap:wrap}.steps{gap:25px}.reader-heading{gap:20px;padding:25px 23px}.reader-heading h1{font-size:27px}.reader-toolbar{padding:10px 20px}.reader-layout{grid-template-columns:155px minmax(0,1fr)}.reader-sidebar{padding:24px 10px}.reader-content{padding:25px}.tool-right{gap:8px}.font-controls,.reader-actions .add-another{display:none}}@media(max-width:640px){.site-header{height:68px;padding:0 18px;gap:12px}.brand{font-size:23px;gap:8px}.brand small{font-size:11px;margin-bottom:6px}.brand-mark{width:25px;height:29px}.header-nav{gap:15px}.nav-link{font-size:11px}.nav-terms{display:none}.icon-button{width:35px;height:35px}.landing{padding:35px 20px 32px}.hero-grid{grid-template-columns:1fr;gap:32px}.hero-copy .eyebrow{font-size:9px;letter-spacing:1.4px}.hero-copy h1{font-size:54px;letter-spacing:-2px;max-width:450px;margin:22px 0 20px}.hero-description{font-size:15px;max-width:400px}.hero-links{margin-top:22px;gap:21px}.hero-links .subtle-note{font-size:10px}.add-card{padding:22px}.add-card h2{font-size:30px}.input-tabs{margin:19px 0 18px}.dropzone{padding:22px 12px}.example-section{margin-top:43px;padding-top:27px;grid-template-columns:1fr;gap:22px}.example-label h2{font-size:31px;margin:9px 0}.example-label p{max-width:100%}.example-text{font-size:25px;padding:0}.example-text .eyebrow{font-size:9px}.how-section{margin-top:39px;padding-top:25px}.how-section h2{font-size:31px;margin-bottom:24px}.steps{grid-template-columns:1fr;gap:22px}.step{display:grid;grid-template-columns:38px 1fr;column-gap:10px}.step-number{grid-row:1/3;font-size:26px}.steps h3{margin-bottom:6px}.steps p{max-width:100%}.library-section{margin-top:35px;padding-top:25px}.section-title-row{gap:10px;align-items:baseline}.section-title-row h2{font-size:31px}.section-title-row .subtle-note{font-size:10px}.paper-grid{grid-template-columns:1fr;gap:12px}.paper-card{padding:20px;gap:13px}.empty-library{padding:19px;align-items:flex-start;font-size:12px}.site-footer{flex-direction:column;padding:22px 20px;gap:12px}.reader-heading{padding:22px 19px;display:block}.reader-heading h1{font-size:29px;margin:11px 0;line-height:1.2}.reader-heading .eyebrow{font-size:9px}.reader-actions{margin-top:16px}.reader-actions button{padding:7px 12px;font-size:11px}.reader-actions .add-another{display:inline-flex}.reader-meta{font-size:11px;line-height:1.6}.reader-toolbar{padding:10px 14px;gap:8px;flex-wrap:wrap}.view-tabs{flex:1}.view-tabs button{flex:1;justify-content:center;font-size:11px;padding:8px 10px;gap:5px}.view-tabs svg{width:13px;height:13px}.tool-right{justify-content:space-between;width:100%}.tool-right .secondary-button{font-size:10px;padding:7px 10px;background:none;border:0;min-height:32px}.tool-right .font-controls{display:flex;padding:0 4px;height:32px;gap:1px}.font-controls button{padding:3px 6px;font-size:12px}.font-controls output{min-width:31px}.reader-layout{display:block}.reader-sidebar{display:none;border:0;border-bottom:1px solid var(--line);padding:20px;max-height:45vh;overflow:auto}.reader-sidebar.open{display:block}.page-list{margin-top:12px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));max-height:none;position:static}.sidebar-note{margin-top:12px}.mobile-contents{display:inline-flex;align-items:center;gap:6px;font-size:10px;padding:7px 3px}.mobile-contents svg{width:14px;height:14px}.reader-content{padding:25px 20px 30px}.reading-kicker{gap:8px;align-items:flex-start}.reading-label{font-size:9px;text-align:right;max-width:140px}.reading-kicker .eyebrow{font-size:9px;letter-spacing:1px}.article-heading{font-size:28px;margin:14px 0 19px}.article-text{font-size:var(--reader-size);line-height:1.8}.source-label{font-size:9px;line-height:1.5}.fallback-note{padding:14px;font-size:11px}.source-options{gap:12px;font-size:9px;line-height:1.6}.source-options button{font-size:10px;white-space:nowrap}.page-navigation button{font-size:11px;gap:4px}.page-navigation svg{width:15px;height:15px}.page-navigation select{font-size:10px;min-width:105px}.dialog-header{padding:20px}.dialog-header h2{font-size:29px}.dialog-header .eyebrow{font-size:9px}.glossary-tools{padding:20px 20px 14px}.dialog-body{padding:22px 20px}.glossary-filters{gap:8px}.filter-select{font-size:10px;padding:9px}.term-popover{padding:19px;width:320px}.term-popover h3{font-size:24px}.term-popover p{font-size:12px}.figure-caption{padding:15px;font-size:calc(var(--reader-size) - 2px)}.figure-page-grid{grid-template-columns:1fr}.image-dialog .dialog-header h2{font-size:22px}.image-dialog .original-frame{min-width:680px}.toast{font-size:11px;width:max-content}}@media(max-width:360px){.brand small{display:none}.header-nav{gap:10px}.hero-copy h1{font-size:49px}.landing{padding-left:17px;padding-right:17px}.view-tabs button{padding:8px;font-size:10px}.reader-content{padding:22px 16px}.tool-right{gap:4px}.tool-right .secondary-button{padding:6px 4px}.font-controls button{padding:3px 4px}.font-controls output{min-width:27px}.reader-heading h1{font-size:26px}.reading-label{max-width:125px}}.author-detail{font-size:11px;color:var(--muted);margin-top:9px;max-width:950px}.author-detail summary{cursor:pointer}.author-detail p{margin-top:9px;line-height:1.7}.author-detail a{display:inline-block;margin-top:9px}.article-text{max-width:780px}.textLayer{color-scheme:only light;position:absolute;text-align:initial;inset:0;overflow:clip;line-height:1;letter-spacing:normal;word-spacing:normal;text-size-adjust:none;forced-color-adjust:none;transform-origin:0 0;--min-font-size:1;--text-scale-factor:calc(var(--total-scale-factor) * var(--min-font-size));--min-font-size-inv:calc(1 / var(--min-font-size))}.textLayer :is(span,br){color:transparent;position:absolute;white-space:pre;cursor:text;transform-origin:0% 0%;user-select:text}.textLayer>:not(.markedContent),.textLayer .markedContent span:not(.markedContent){z-index:1;--font-height:0;font-size:calc(var(--text-scale-factor) * var(--font-height));--scale-x:1;--rotate:0deg;transform:rotate(var(--rotate)) scaleX(var(--scale-x)) scale(var(--min-font-size-inv))}.textLayer .markedContent{display:contents}.textLayer .source-term{color:transparent;background:#96ab671c;font:inherit;border-bottom:1px dotted #435e3488;border-radius:0;line-height:1;vertical-align:baseline}.textLayer .source-term:hover,.textLayer .source-term[aria-expanded=true]{background:#bfd38088}.textLayer .source-term:focus-visible{outline-color:#344a28;outline-width:1px;outline-offset:1px}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}.prep-spinner{border-color:var(--accent)}}.simplify-notice{border:1px solid var(--line);border-radius:8px;padding:20px 24px;margin:0 0 30px;background:var(--surface)}.simplify-notice>strong{font-size:15px}.simplify-notice>p{font-size:13px;line-height:1.6;margin:8px 0 12px;color:var(--muted)}.simplify-notice .rewrite-status{font-weight:600;color:var(--ink)}.rewrite-controls{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}.rewrite-controls .text-button{font-size:12px}.rewritten-passage{margin-bottom:24px}.passage-source{border-left:2px solid var(--line);padding:3px 0 3px 14px;font-family:DM Sans,Arial,sans-serif;font-size:12px}.passage-source summary{cursor:pointer;color:var(--muted)}.passage-source>div{font-size:16px;line-height:1.65;padding:14px 0;font-family:Newsreader,Georgia,serif}.rewrite-caution,.unprocessed-note{font-size:13px!important;color:var(--muted);font-family:DM Sans,Arial,sans-serif!important}.rewrite-waiting{padding:35px 20px;border:1px dashed var(--line);border-radius:8px;text-align:center}.rewrite-waiting .prep-spinner{margin:0 auto 20px}.rewrite-waiting p,.simplify-footnote{font-size:13px;color:var(--muted);line-height:1.6}.simplify-footnote{border-top:1px solid var(--line);padding-top:18px}.wiki-link{display:block;margin-bottom:8px;color:var(--accent)}.view-tabs{flex-wrap:wrap}.view-tabs button{white-space:nowrap}@media(max-width:600px){.view-tabs{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:4px}.view-tabs button{font-size:11px;padding:10px 6px;justify-content:center}.reader-toolbar{flex-wrap:wrap}.header-nav .nav-how{display:none}.header-nav .nav-wiki{font-size:12px}.simplify-notice{padding:18px}.rewrite-controls .text-button{font-size:11px}}