@import url('/ax-tokens.css');
@font-face{font-family:'Source Sans 3';src:url('/fonts/SourceSans3-Regular.woff2') format('woff2');font-weight:400;font-display:optional}
@font-face{font-family:'Source Sans 3';src:url('/fonts/SourceSans3-Semibold.woff2') format('woff2');font-weight:600;font-display:optional}
@font-face{font-family:'Source Serif 4';src:url('/fonts/SourceSerif4-Regular.woff2') format('woff2');font-style:normal;font-weight:400 700;font-display:swap}
.ax-public{--site-width:1440px;--site-gutter:clamp(20px,3.5vw,56px);--site-section:clamp(48px,7vw,100px);margin:0;background:var(--ax-reading);color:var(--ax-text);font-family:var(--ax-font-research-sans);font-size:18px;line-height:1.6;color-scheme:light}
.ax-public *{box-sizing:border-box}
.ax-public{--blue:var(--ax-blue);--teal:var(--ax-welcome-teal);--muted:var(--ax-muted);--line:var(--ax-rule);--ink:var(--ax-text)}
.ax-public[data-site-page=research-article] .article-heading{padding-bottom:40px}
.ax-public[data-site-page=research-article] .article-layout{padding-top:36px}
.ax-public[data-site-page=research-article] #article-kind{margin-top:16px;margin-bottom:16px!important;font-size:15px;color:var(--ax-muted)}
.ax-public[data-site-page=research-article] .related-section{padding-top:30px}
.ax-public[data-site-page=research-article] .related-section>h2{margin-bottom:26px}
.ax-public [hidden]{display:none!important}
.ax-public a{color:var(--ax-link);text-decoration:none;text-underline-offset:4px}
.ax-public a:hover{text-decoration:underline}
.ax-public button,.ax-public input,.ax-public select{font:inherit}
.ax-public button,.ax-public a,.ax-public input,.ax-public summary,.ax-public select{touch-action:manipulation}
.ax-public button{cursor:pointer}
.ax-public :is(a,button,input,select,summary):focus-visible{outline:3px solid var(--ax-blue);outline-offset:4px}
.ax-public button:disabled{cursor:wait;opacity:.65}
.ax-public h1,.ax-public h2,.ax-public h3,.ax-public p{margin:0}
.ax-public h1,.ax-public h2,.ax-public h3{text-wrap:balance}
.ax-public h1{font-family:var(--ax-font-serif);font-size:clamp(40px,4.6vw,68px);line-height:1.08;font-weight:550;letter-spacing:-.03em}
.ax-public h2{font-family:var(--ax-font-serif);font-size:clamp(29px,3vw,42px);line-height:1.2;font-weight:550;letter-spacing:-.02em}
.ax-public h3{font-size:22px;line-height:1.3;font-weight:600}
.ax-public svg{display:block}
.ax-public :is(a,button)>svg,.ax-question-search svg,.ax-guide-search svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.6;flex:none}
.ax-visually-hidden{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.ax-public .skip-link{position:fixed;top:-100px;left:20px;z-index:50;padding:12px 20px;background:var(--ax-reading)}
.ax-public .skip-link:focus{top:10px}
.ax-section{width:min(var(--site-width),100%);margin-inline:auto;padding:var(--site-section) var(--site-gutter)}
.ax-lead{font-size:clamp(19px,1.6vw,23px);line-height:1.6;color:var(--ax-muted);max-width:62ch}
.ax-site-header{position:relative;display:flex;align-items:center;gap:clamp(20px,3vw,50px);min-height:104px;padding:6px var(--site-gutter);border-bottom:1px solid var(--ax-rule);background:var(--ax-reading);z-index:20}
.ax-site-header .brand{flex:none;display:block}
.ax-site-header .brand-logo-window{display:block;position:relative;width:154px;height:86px;overflow:hidden}
.ax-site-header .brand-logo-image{position:static;width:100%;height:100%;object-fit:contain;max-width:none;background:transparent;filter:contrast(1.35);mix-blend-mode:multiply}
.ax-site-header .desktop-nav{display:flex;align-items:center;gap:clamp(18px,2vw,30px);font-size:15px;line-height:1.4;white-space:nowrap}
.ax-site-header .desktop-nav a{color:var(--ax-text);padding-block:14px}
.ax-site-header .desktop-nav a[aria-current=page]{color:var(--ax-blue);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:8px}
.ax-site-header .header-actions{display:flex;gap:22px;align-items:center;margin-left:auto}
.ax-public .ax-site-header .ax-header-sign-out{border:0;background:transparent;color:var(--ax-link);font-size:14px;font-weight:600;min-height:44px;padding:7px 4px;white-space:nowrap;text-decoration:underline;text-underline-offset:4px}
.ax-public .mobile-nav .ax-header-sign-out{display:block;width:100%;text-align:left;padding:12px 4px;font-size:17px}
@media(max-width:900px){.ax-public .ax-site-header .header-actions>.ax-header-sign-out{display:none}}
.ax-languages{display:flex;gap:7px;align-items:center;font-size:13px;white-space:nowrap}
.ax-languages a{min-height:40px;display:grid;place-items:center;color:var(--ax-muted)}
.ax-languages a[aria-current=true]{color:var(--ax-blue);text-decoration:underline}
.ax-header-action{display:flex;align-items:center;gap:12px;font-size:14px;font-weight:600;white-space:nowrap;min-height:44px}
.ax-site-header .menu-toggle{display:none;min-height:44px;background:var(--ax-reading);color:var(--ax-text);border:1px solid var(--ax-rule);padding:8px 12px;font-size:14px}
.ax-site-header .mobile-nav{position:absolute;top:100%;left:0;right:0;background:var(--ax-reading);padding:16px var(--site-gutter);border-bottom:1px solid var(--ax-rule);box-shadow:0 10px 24px rgb(0 0 0 / .05)}
.ax-site-header .mobile-nav a{display:block;padding:12px 4px;color:var(--ax-text);font-size:18px}
.ax-button{display:inline-flex;align-items:center;justify-content:center;gap:16px;background:var(--ax-blue);color:var(--ax-reading)!important;border:1px solid var(--ax-blue);border-radius:4px;padding:13px 20px;font-size:16px;font-weight:600;min-height:48px;text-align:center}
.ax-button:hover{background:var(--ax-blue-hover);border-color:var(--ax-blue-hover);text-decoration:none!important}
.ax-text-link{display:inline-flex;align-items:center;gap:14px;min-height:44px;font-size:16px;font-weight:600}
.ax-home-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);max-width:1600px;margin-inline:auto;align-items:stretch}
.ax-home-intro{padding:50px var(--site-gutter) 42px;min-width:0}
.ax-home-intro h1 span{display:block}
.ax-home-intro .ax-lead{margin-top:22px;max-width:47ch}
.ax-question-search{margin-top:30px}
.ax-question-search>label,.ax-guide-search>label{display:block;font-size:15px;font-weight:600;margin-bottom:9px}
.ax-question-search>div,.ax-guide-search>div{display:flex;align-items:center;gap:12px;border:1px solid var(--ax-field-border);border-radius:5px;padding:6px 6px 6px 14px;background:var(--ax-reading)}
.ax-question-search input[type=search],.ax-guide-search input[type=search]{width:100%;min-width:0;border:0;background:transparent;color:var(--ax-text);font-size:16px;line-height:1.5;padding:7px 0;min-height:42px}
.ax-question-search input::placeholder,.ax-guide-search input::placeholder{color:var(--ax-muted);opacity:1}
.ax-question-search .ax-button{padding-inline:14px;font-size:14px;gap:10px;white-space:nowrap}
.ax-suggested{display:grid;gap:0;margin-top:22px}
.ax-suggested>p{font-size:14px;color:var(--ax-muted);margin-bottom:4px}
.ax-suggested>a{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:16px;line-height:1.5;min-height:43px;padding:8px 0}
.ax-suggested>a+a{border-top:1px solid var(--ax-rule)}
.ax-home-secondary{border-top:1px solid var(--ax-rule);margin-top:24px;padding-top:17px;display:flex;align-items:flex-start;flex-wrap:wrap;gap:10px}
.ax-home-secondary .enrolment-note{font-size:14px;line-height:1.5;color:var(--ax-muted);max-width:52ch;display:block}
.ax-example{background:var(--ax-blue);color:var(--ax-reading);padding:30px 34px;min-width:0;overflow:hidden}
.ax-example-heading{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;align-items:baseline}
.ax-example-heading h2{font-size:30px;line-height:1.24;max-width:28ch;color:inherit}
.ax-example-heading>p{font-size:13px;line-height:1.5;color:#e0e9ff;white-space:nowrap}
.ax-home-hero>.ax-example{padding-top:38px}
.ax-example-plot{margin:10px 0 0;min-width:0}
.ax-plot-frame{position:relative;min-width:0}
.ax-plot-overlay{display:none;position:absolute;inset:0;pointer-events:none}
.ax-plot-overlay span{position:absolute;white-space:nowrap;font:14px/1 'Source Sans 3',sans-serif;color:var(--ax-reading);transform:translateY(-.82em)}
.ax-plot-overlay [data-align=middle]{transform:translate(-50%,-.82em)}
.ax-plot-overlay [data-align=end]{transform:translate(-100%,-.82em)}
.ax-plot-overlay .is-chosen-label{color:var(--ax-graphite)}
.ax-plot{width:100%;height:auto;overflow:visible;fill:none}
.ax-plot-axis{stroke:#d7e3ff;stroke-width:1.1;opacity:.75}
.ax-plot-fit{stroke:var(--ax-reading);stroke-width:1.8}
.ax-plot-residual{stroke:var(--ax-welcome-teal);stroke-width:2;stroke-dasharray:5 5}
.ax-plot-vector{stroke:var(--ax-reading);stroke-width:2}
.ax-plot-projection{stroke:var(--ax-welcome-teal);stroke-width:3}
.ax-plot-point{fill:var(--ax-welcome-teal);stroke:var(--ax-blue);stroke-width:2}
.ax-plot-point-alt{fill:var(--ax-reading);stroke:var(--ax-welcome-teal);stroke-width:3}
.ax-plot-tick{fill:#e0e9ff;font:15px 'Source Sans 3',sans-serif}
.ax-plot-label{fill:var(--ax-reading);font:18px 'Source Sans 3',sans-serif}
.ax-plot-curve{fill:none;stroke:var(--ax-reading);stroke-width:2.5}
.ax-job{fill:var(--ax-blue);stroke:#a7bdff;stroke-width:1}
.ax-job.is-chosen{fill:var(--ax-welcome-teal)}
.ax-job.is-greedy{stroke:var(--ax-reading);stroke-width:3}
.ax-job-label{fill:var(--ax-reading);font:15px 'Source Sans 3',sans-serif}
.ax-job-label.is-chosen-label{fill:var(--ax-graphite)}
.ax-readings{display:flex;gap:24px;margin:0 0 20px;padding:16px 0;border-block:1px solid #8aa6f0}
.ax-readings>div{flex:1;min-width:0}
.ax-readings dt{font-size:14px;line-height:1.4;color:#e0e9ff}
.ax-readings dd{margin:4px 0 0;font-size:30px;line-height:1.2;font-variant-numeric:tabular-nums;font-weight:500}
.ax-example-controls{display:flex;align-items:end;flex-wrap:wrap;gap:16px 22px}
.ax-range-control{flex:1;min-width:180px}
.ax-range-control>label{display:block;font-size:14px;margin-bottom:7px;color:#e0e9ff}
.ax-range-control>div{display:flex;align-items:center;gap:14px}
.ax-range-control input[type=range]{appearance:auto;accent-color:var(--ax-welcome-teal);width:100%;min-width:50px;min-height:44px;margin:0}
.ax-range-control input[type=number]{width:78px;min-height:44px;border:1px solid #adbef0;border-radius:3px;background:var(--ax-reading);color:var(--ax-text);font-size:16px;padding:8px;font-variant-numeric:tabular-nums}
.ax-reset{background:transparent;border:1px solid #a7bdff;color:var(--ax-reading);border-radius:3px;font-size:14px;padding:9px 12px;min-height:44px}
.ax-reset:hover{background:var(--ax-blue-hover)}
.ax-example :is(a,button,input,summary):focus-visible{outline-color:var(--ax-welcome-teal)}
.ax-public .ax-example-open{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:44px;color:var(--ax-reading);font-size:15px;font-weight:600;margin-top:18px}
.ax-control-error{flex-basis:100%;font-size:15px;color:var(--ax-reading);margin:0}
.ax-control-error:empty{display:none}
.ax-choice-control{border:0;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;flex:1}
.ax-choice-control legend{font-size:14px;margin-bottom:10px;color:#e0e9ff}
.ax-choice-control label{cursor:pointer;position:relative}
.ax-choice-control input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}
.ax-choice-control span{display:block;border:1px solid #a7bdff;border-radius:3px;font-size:15px;padding:10px 15px;min-height:44px}
.ax-choice-control input:checked+span{background:var(--ax-reading);color:var(--ax-blue);border-color:var(--ax-reading)}
.ax-choice-control input:focus-visible+span{outline:3px solid var(--ax-welcome-teal);outline-offset:3px}
.ax-example-observation{font-size:17px;line-height:1.6;margin-top:24px!important;max-width:62ch}
.ax-example-values{margin-top:22px;border-top:1px solid #8aa6f0;padding-top:12px}
.ax-example-values summary{cursor:pointer;font-size:15px;min-height:44px;display:list-item;padding-block:10px}
.ax-example-values>div{overflow:auto}
.ax-example-values table{border-collapse:collapse;width:100%;font-size:15px;text-align:left;margin-top:10px;font-variant-numeric:tabular-nums}
.ax-example-values caption{text-align:left;line-height:1.5;margin-bottom:14px;color:#e0e9ff}
.ax-example-values th,.ax-example-values td{padding:8px 12px;border-bottom:1px solid #8aa6f0;font-weight:400}
.ax-example-values thead th{font-weight:600}
.ax-example>noscript{font-size:15px}
.no-js .ax-example-controls,.no-js [data-copy-example],.no-js [data-print-guide]{display:none}
.ax-section-heading{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:32px}
.ax-section-heading>div{max-width:70ch}
.ax-section-heading p{font-size:18px;color:var(--ax-muted);line-height:1.65;max-width:65ch;margin-top:14px}
.ax-section-heading>a{display:flex;align-items:center;gap:16px;flex:none;min-height:44px;font-size:16px;font-weight:600}
.ax-subject-index{background:var(--ax-page);padding-block:32px}
.ax-subject-index .ax-section-heading{margin-bottom:20px}
.ax-subject-index h2{font-size:29px}
.ax-subject-links{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.ax-subject-links>a{position:relative;color:var(--ax-text);padding:5px 28px 5px 0;margin-right:28px;display:block}
.ax-subject-links>a+a{padding-left:28px;border-left:1px solid var(--ax-rule)}
.ax-subject-links h3{font-family:var(--ax-font-serif);font-size:23px}
.ax-subject-links p{font-size:16px;line-height:1.5;color:var(--ax-muted);margin-top:10px}
.ax-subject-links svg{position:absolute;right:0;bottom:10px;width:17px}
.ax-course-preview{padding-bottom:0}
.ax-course-rows{border-top:1px solid var(--ax-rule)}
.ax-course-rows>a{display:grid;grid-template-columns:minmax(120px,.7fr) minmax(220px,1fr) minmax(260px,1.3fr) 22px;gap:30px;align-items:center;padding:28px 0;border-bottom:1px solid var(--ax-rule);color:var(--ax-text)}
.ax-course-rows>a:hover{background:var(--ax-page);text-decoration:none}
.ax-subject-name{color:var(--ax-link);font-size:15px;font-weight:600}
.ax-course-rows h3{font-family:var(--ax-font-serif);font-size:29px}
.ax-course-rows p{color:var(--ax-muted);font-size:17px;line-height:1.5}
.ax-approach{padding-bottom:60px}
.ax-methods{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px;margin-top:38px}
.ax-methods article{border-top:2px solid var(--ax-text);padding-top:23px}
.ax-methods h3{font-family:var(--ax-font-serif);font-size:28px}
.ax-methods p{font-size:18px;color:var(--ax-muted);margin-top:14px}
.ax-method-name{display:inline-block;margin-top:24px;font-size:16px;color:var(--ax-link);font-weight:600}
.ax-research-section{background:var(--ax-page)}
.ax-research-list{display:grid;grid-template-columns:1fr 1fr;gap:40px 56px}
.ax-research-list .analysis-card{display:flex;flex-direction:column;border-top:1px solid var(--ax-button-border);padding:26px 0 0;background:transparent;min-width:0}
.ax-research-kind{font-size:14px;color:var(--ax-muted);margin-bottom:12px!important}
.ax-research-list h3{font-family:var(--ax-font-serif);font-size:28px;line-height:1.3;margin-bottom:14px}
.ax-research-list h3 a{color:var(--ax-text)}
.ax-research-list article>p:not(.ax-research-kind){color:var(--ax-muted);font-size:18px;line-height:1.6;margin-bottom:16px}
.ax-research-list .ax-text-link{margin-top:auto}
.ax-invitation{display:grid;grid-template-columns:1fr 1fr;align-items:start;gap:70px}
.ax-invitation p{font-size:19px;color:var(--ax-muted);margin-bottom:22px}
.ax-invitation .ax-text-link{margin-left:22px}
.ax-site-footer{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:38px 70px;max-width:var(--site-width);padding:50px var(--site-gutter) 28px;margin-inline:auto;border-top:1px solid var(--ax-rule);font-size:16px}
.ax-footer-brand{font-family:var(--ax-font-serif);font-size:28px;letter-spacing:.035em;color:var(--ax-text)!important}
.ax-footer-intro p{max-width:34ch;margin-top:14px;color:var(--ax-muted);font-size:16px;line-height:1.6}
.ax-site-footer nav{display:flex;flex-direction:column;gap:12px}
.ax-site-footer nav a{min-height:30px}
.ax-footer-note{grid-column:1/-1;font-size:14px;color:var(--ax-muted);border-top:1px solid var(--ax-rule);padding-top:20px}
.ax-page-intro{padding-bottom:34px}
.ax-page-intro>.ax-lead{margin-top:22px}
.ax-page-intro .ax-question-search{max-width:760px}
.ax-explore-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:42px;padding-top:20px;align-items:start}
.ax-subject-filter{display:flex;gap:12px;align-items:center;margin-top:22px;font-size:16px}
.ax-subject-filter select{border:1px solid var(--ax-field-border);background:var(--ax-reading);min-height:44px;max-width:240px;padding:8px 30px 8px 12px;color:var(--ax-text);border-radius:4px}
.ax-subject-apply{min-height:44px;padding:8px 14px;border:1px solid var(--ax-button-border);background:var(--ax-reading);color:var(--ax-link);border-radius:4px}
.ax-result-count{font-size:14px;color:var(--ax-muted);margin-bottom:12px!important}
.ax-question-list{position:sticky;top:20px;min-width:0}
.ax-question-list>a:not(.ax-text-link){position:relative;display:block;padding:20px 34px 20px 18px;border-top:1px solid var(--ax-rule);color:var(--ax-text)}
.ax-question-list>a[aria-current=page]{background:var(--ax-selected);color:var(--ax-selected-text);border-radius:4px}
.ax-question-list>a>span{display:block;font-size:13px;font-weight:500;color:var(--ax-muted);margin-bottom:7px}
.ax-question-list>a>strong{display:block;font-size:18px;line-height:1.45;font-weight:600}
.ax-question-list>a>svg{position:absolute;right:12px;top:50%;width:16px;height:16px}
.ax-question-detail{min-width:0}
.ax-question-detail>.ax-example{border-radius:6px}
.ax-example-note{color:var(--ax-muted);font-size:14px;margin-top:16px!important}
.ax-detail-actions{display:flex;flex-wrap:wrap;gap:12px 25px;align-items:center;border-bottom:1px solid var(--ax-rule);padding:16px 0 26px}
.ax-detail-actions button,.ax-print-action{min-height:44px;border:1px solid var(--ax-button-border);border-radius:4px;background:var(--ax-reading);color:var(--ax-link);font-size:15px;padding:9px 14px}
.ax-detail-actions [role=status]{font-size:14px;color:var(--ax-muted);flex-basis:100%}
.ax-detail-actions [role=status]:empty{display:none}
.ax-reasoning-notes{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:32px}
.ax-reasoning-notes section:first-child{grid-column:1/-1}
.ax-reasoning-notes h2{font-size:27px;margin-bottom:12px}
.ax-reasoning-notes p{font-size:18px;color:var(--ax-muted);line-height:1.7}
.ax-reasoning-notes p+p{margin-top:12px}
.ax-source-details{margin-top:32px;padding:14px 0;border-block:1px solid var(--ax-rule)}
.ax-source-details summary{font-size:17px;font-weight:600;cursor:pointer;padding:10px 0}
.ax-source-details p,.ax-source-details li{font-size:16px;color:var(--ax-muted);margin-top:12px}
.ax-source-details ul{padding-left:20px}
.ax-guide-link{padding:30px 0 0}
.ax-guide-link h2{font-size:27px;margin-bottom:12px}
.ax-guide-link p{font-size:18px;color:var(--ax-muted);margin-bottom:10px}
.ax-guide-search{max-width:760px;margin-top:28px}
.ax-guide-index{display:grid;grid-template-columns:1fr 1fr;gap:48px 64px;padding-top:24px}
.ax-guide-index section>h2{font-size:28px;margin-bottom:16px}
.ax-guide-index section>a{display:block;position:relative;border-top:1px solid var(--ax-rule);padding:20px 30px 20px 0;color:var(--ax-text)}
.ax-guide-index h3{font-size:21px}
.ax-guide-index p{font-size:17px;color:var(--ax-muted);margin-top:10px}
.ax-guide-index a>svg{position:absolute;top:25px;right:0;width:18px;height:18px}
.ax-guide-layout{display:grid;grid-template-columns:250px minmax(0,780px);gap:70px;align-items:start}
.ax-guide-nav{position:sticky;top:24px;max-height:calc(100vh - 48px);overflow:auto;padding:4px}
.ax-back-link{display:inline-flex;min-height:44px;align-items:center;font-size:16px}
.ax-guide-nav section{margin-top:24px}
.ax-guide-nav h2{font-family:var(--ax-font-research-sans);font-size:14px;font-weight:600;letter-spacing:0;line-height:1.4;color:var(--ax-muted);margin-bottom:8px}
.ax-guide-nav section>a{display:block;padding:9px 10px;font-size:16px;line-height:1.45;border-radius:3px;color:var(--ax-text)}
.ax-guide-nav a[aria-current=page]{color:var(--ax-selected-text);background:var(--ax-selected);font-weight:600}
.ax-guide-article{min-width:0}
.ax-guide-article h1{font-size:clamp(36px,4vw,52px);max-width:28ch}
.ax-guide-article>.ax-lead{margin-top:22px}
.ax-print-action{margin-top:24px}
.ax-guide-article>section{margin-top:38px;scroll-margin-top:24px}
.ax-guide-article>section h2{font-size:29px;margin-bottom:17px}
.ax-guide-article>section h2 a{color:inherit}
.ax-guide-article>section p{font-size:19px;line-height:1.85;max-width:70ch}
.ax-related-guides{margin-top:48px;border-top:1px solid var(--ax-rule);padding-top:25px}
.ax-related-guides h2{font-size:27px;margin-bottom:18px}
.ax-related-guides>a{display:flex;gap:24px;align-items:center;justify-content:space-between;padding:10px 0;font-size:17px}
.ax-mobile-back{display:none}
.ax-availability{background:var(--ax-page);padding-block:38px}
.ax-availability h2{font-size:29px;margin-bottom:14px}
.ax-availability p{color:var(--ax-muted);max-width:70ch;margin-bottom:12px}
@media(max-width:600px){.ax-plot-overlay{display:block}.ax-plot-frame svg text{visibility:hidden}}
@media(min-width:1601px){.ax-home-intro{padding-left:80px}.ax-home-hero>.ax-example{padding-right:60px}}
@media(max-width:1200px){.ax-site-header{gap:24px}.ax-header-action{display:none}.ax-home-intro h1{font-size:54px}.ax-question-search>div{flex-wrap:wrap}.ax-question-search input[type=search]{width:calc(100% - 40px)}.ax-question-search .ax-button{flex:1}.ax-course-rows>a{grid-template-columns:110px 1fr 1.3fr 20px;gap:24px}.ax-explore-layout{grid-template-columns:235px minmax(0,1fr);gap:28px}}
@media(max-width:900px){.ax-site-header{min-height:86px}.ax-site-header .desktop-nav{display:none}.ax-site-header .menu-toggle{display:block}.ax-site-header .brand-logo-window{width:132px;height:72px}.ax-site-header .brand-logo-image{width:100%;height:100%;position:static}.ax-home-hero{grid-template-columns:1fr}.ax-home-intro{padding-top:40px;padding-bottom:32px}.ax-home-intro h1{font-size:clamp(43px,7.5vw,65px)}.ax-home-intro .ax-lead{max-width:60ch}.ax-question-search>div{flex-wrap:nowrap}.ax-question-search input[type=search]{width:100%}.ax-question-search .ax-button{flex:none}.ax-home-hero>.ax-example{margin-inline:var(--site-gutter);border-radius:5px;padding-top:28px}.ax-home-hero .ax-example-plot{max-width:600px;margin-inline:auto}.ax-subject-index{margin-top:40px}.ax-subject-links{grid-template-columns:1fr 1fr;gap:24px 0}.ax-subject-links>a{margin-right:24px}.ax-subject-links>a:nth-child(3){padding-left:0;border-left:0}.ax-section-heading{align-items:flex-start;gap:20px}.ax-section-heading>a{flex-shrink:0}.ax-course-rows>a{grid-template-columns:1fr 1.3fr 20px;gap:12px 24px}.ax-course-rows .ax-subject-name{grid-column:1/-1}.ax-course-rows h3{font-size:26px}.ax-methods{gap:24px}.ax-methods h3{font-size:25px}.ax-invitation{gap:40px}.ax-site-footer{gap:34px;grid-template-columns:1.2fr 1fr 1fr}.ax-explore-layout{grid-template-columns:1fr;gap:24px}.ax-question-list{position:static;display:grid;grid-template-columns:1fr 1fr;gap:0 16px}.ax-result-count{grid-column:1/-1}.ax-question-list>a:not(.ax-text-link){padding:16px 34px 16px 12px}.ax-question-list>a>strong{font-size:17px}.ax-question-detail .ax-example-plot{max-width:640px;margin-inline:auto}.ax-guide-layout{grid-template-columns:210px minmax(0,1fr);gap:36px}}
@media(max-width:600px){.ax-public{font-size:17px}.ax-site-header .header-actions{gap:14px}.ax-home-intro h1{font-size:clamp(32px,9.5vw,38px);line-height:1.13;letter-spacing:-.025em}.ax-home-intro .ax-suggested{display:none}.ax-home-intro{padding-top:32px}.ax-home-intro .ax-lead{font-size:19px;margin-top:20px}.ax-question-search>div{flex-wrap:wrap;padding:8px 12px}.ax-question-search input[type=search]{width:calc(100% - 38px)}.ax-question-search .ax-button{width:100%;margin-top:4px}.ax-suggested>a{font-size:16px;min-height:52px}.ax-example{padding:22px 18px}.ax-example-heading h2{font-size:27px;max-width:24ch}.ax-example-heading>p{font-size:13px}.ax-readings{gap:18px;padding-block:14px}.ax-readings dd{font-size:27px}.ax-readings dt{font-size:14px}.ax-plot-tick{font-size:19px}.ax-plot-label{font-size:21px}.ax-job-label{font-size:19px}.ax-range-control{min-width:100%;flex-basis:100%}.ax-example-controls{gap:12px}.ax-range-control>div{gap:12px}.ax-reset{min-height:44px}.ax-section-heading{display:block}.ax-section-heading>a{margin-top:16px}.ax-subject-index{padding-block:28px}.ax-subject-links{grid-template-columns:1fr;gap:0}.ax-subject-links>a,.ax-subject-links>a+a{margin:0;padding:20px 30px 20px 0;border-left:0;border-top:1px solid var(--ax-rule)}.ax-subject-links p{margin-top:8px}.ax-subject-links svg{bottom:25px}.ax-course-rows>a{grid-template-columns:1fr 20px;padding-block:23px}.ax-course-rows h3{font-size:26px}.ax-course-rows p{grid-column:1;font-size:17px}.ax-course-rows>a>svg{grid-column:2;grid-row:2/4}.ax-methods{grid-template-columns:1fr;gap:30px;margin-top:30px}.ax-methods p{font-size:18px}.ax-method-name{margin-top:15px}.ax-research-list{grid-template-columns:1fr;gap:32px}.ax-research-list h3{font-size:27px}.ax-invitation{grid-template-columns:1fr;gap:24px}.ax-invitation .ax-text-link{margin:12px 0 0;display:flex}.ax-site-footer{grid-template-columns:1fr 1fr;gap:28px;font-size:15px}.ax-footer-intro{grid-column:1/-1}.ax-footer-note{font-size:14px}.ax-question-list{grid-template-columns:1fr}.ax-question-list>a:not(.ax-text-link){padding-block:15px}.ax-question-list>a>span{font-size:14px}.ax-question-list>a>strong{font-size:18px}.ax-subject-filter{flex-wrap:wrap}.ax-subject-filter label{width:100%}.ax-subject-filter select{flex:1;max-width:none;min-width:0}.ax-reasoning-notes{grid-template-columns:1fr;gap:26px}.ax-reasoning-notes section:first-child{grid-column:auto}.ax-guide-index{grid-template-columns:1fr;gap:36px}.ax-guide-search>div{flex-wrap:wrap;padding:10px 12px}.ax-guide-search input[type=search]{width:calc(100% - 38px)}.ax-guide-search .ax-button{width:100%;margin-top:5px}.ax-guide-layout{display:block}.ax-guide-nav{display:none}.ax-mobile-back{display:inline-flex;margin-bottom:20px}.ax-guide-article h1{font-size:38px}.ax-guide-article>section p{font-size:18px}.ax-guide-article>section h2{font-size:27px}.ax-guide-article>.ax-lead{font-size:20px}}
@media(prefers-reduced-motion:no-preference){.ax-public :is(a,button){transition:color 160ms,background-color 160ms,border-color 160ms}}
@media(forced-colors:active){.ax-example{background:Canvas;color:CanvasText;border:1px solid CanvasText}.ax-plot-axis,.ax-plot-fit,.ax-plot-vector,.ax-plot-curve{stroke:CanvasText}.ax-plot-residual,.ax-plot-projection{stroke:LinkText}.ax-plot-point,.ax-plot-point-alt{fill:LinkText;stroke:CanvasText}.ax-plot-label,.ax-plot-tick,.ax-job-label{fill:CanvasText}.ax-readings,.ax-example-values,.ax-example-values td,.ax-example-values th{border-color:CanvasText}.ax-example :is(p,dt,dd,label,a,summary){color:CanvasText!important}.ax-job.is-chosen{fill:Highlight}.ax-job.is-greedy{stroke:CanvasText}.ax-question-list>a[aria-current],.ax-guide-nav a[aria-current]{outline:2px solid Highlight}}
@media print{.ax-site-header,.ax-site-footer,.ax-guide-nav,.ax-print-action,.ax-mobile-back,.ax-related-guides{display:none!important}.ax-public{font-size:11pt;background:var(--ax-reading);color:#000}.ax-section,.ax-guide-layout{display:block;width:auto;padding:0;margin:0}.ax-guide-article h1{font-size:28pt}.ax-guide-article>.ax-lead{font-size:13pt}.ax-guide-article>section{margin-top:22pt;break-inside:avoid}.ax-guide-article>section h2{font-size:17pt}.ax-guide-article>section p{font-size:11pt;line-height:1.65}.ax-guide-article a{color:#000;text-decoration:none}@page{size:A4;margin:20mm}}

.ax-public .course-main{padding-top:52px}.ax-public .course-intro h1{font-size:clamp(40px,4.6vw,62px);color:var(--ax-text)}.ax-public .course-title{font-size:clamp(36px,4.2vw,56px);max-width:24ch;color:var(--ax-text)}.ax-public .course-sign-in{background:transparent;border:0;color:var(--ax-link);font:600 15px var(--ax-font-research-sans);min-height:44px;white-space:nowrap}.ax-public .course-intro p{max-width:65ch}.ax-public .course-main .course-list{margin-bottom:70px}

/* Desktop public discovery: an entry, an experiment, a course, then its evidence. */
.ax-public.course-catalogue .course-main{width:min(1320px,calc(100% - 2 * var(--site-gutter)))}
.ax-public.course-catalogue .course-intro{max-width:860px;padding-bottom:8px}
.ax-public.course-catalogue .course-intro h1{font-size:clamp(36px,3.5vw,52px);margin-bottom:20px}
.ax-public.course-catalogue .course-intro p{font-size:20px;line-height:1.65;margin-bottom:12px}
.ax-public.course-catalogue .course-row h2{font-size:30px;line-height:1.3}
.ax-public.course-catalogue .course-row .module-question{font-size:18px;line-height:1.6;margin-top:8px}
.ax-public.course-catalogue .course-row :is(.module-foundations,.module-language){font-size:15px;line-height:1.65;margin-top:6px}
.ax-public.course-overview .axiovum-body-unit :is(p,li){overflow-wrap:anywhere}
.ax-public.course-catalogue .axiovum-scroll-hint{font-size:14px;line-height:1.5;margin:0 0 10px;color:var(--ax-muted)}
.ax-public.course-catalogue .axiovum-table-scroll{max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain;-webkit-overflow-scrolling:touch}
.ax-public.course-catalogue .axiovum-table-scroll:focus-visible{outline:3px solid var(--ax-blue);outline-offset:4px}
.ax-public.course-catalogue .axiovum-2026-table{min-width:680px}
@media(min-width:1001px){
 .ax-public[data-site-page=home] .ax-home-hero{max-width:1440px;padding:48px var(--site-gutter);gap:clamp(32px,4vw,64px);align-items:center}
 .ax-public[data-site-page=home] .ax-home-intro{padding:12px 0}
 .ax-public[data-site-page=home] .ax-home-intro h1{font-size:clamp(46px,4.1vw,62px);line-height:1.08;max-width:16ch}
 .ax-public[data-site-page=home] .ax-home-intro .ax-lead{font-size:21px;line-height:1.65;max-width:44ch}
 .ax-public[data-site-page=home] .ax-knowledge-map{border-radius:8px;padding:28px 26px 22px}
 .ax-public[data-site-page=home] .ax-graph-heading{align-items:start}
 .ax-public[data-site-page=home] .ax-graph-heading h2{font-size:26px}
 .ax-public[data-site-page=home] .ax-graph-viewport{height:280px}
 .ax-public[data-site-page=home] .ax-graph-selection{min-height:0;padding-top:18px}
 .ax-public[data-site-page=home] .ax-graph-selection h3{font-size:23px}
 .ax-public[data-site-page=home] .ax-graph-basis{font-size:12px}
 .ax-public[data-site-page=home] .ax-subject-index{margin-top:42px;border-radius:0;background:var(--ax-reading);padding-top:0;padding-bottom:42px}
 .ax-public[data-site-page=home] .ax-course-preview{padding-bottom:var(--site-section)}
 .ax-public[data-site-page=home] .ax-approach{background:var(--ax-page)}
 .ax-public[data-site-page=home] .ax-research-section{background:var(--ax-reading)}
}

/* Exploration-first home: concise invitation, four live examples, deeper routes. */
.ax-home-actions{display:flex;gap:14px 26px;flex-wrap:wrap;align-items:center;margin-top:32px}
.ax-home-open-note{font-size:15px;color:var(--ax-muted);margin-top:18px!important}
.ax-home-playground{max-width:1120px;padding-block:64px;border-top:1px solid var(--ax-rule)}
.ax-home-playground>.ax-section-heading{margin-bottom:24px}
.ax-playground-tabs{display:flex;gap:8px 28px;flex-wrap:wrap;margin-bottom:24px;border-bottom:1px solid var(--ax-rule)}
.ax-playground-tabs a{min-height:48px;padding:10px 0;font-size:16px;color:var(--ax-muted);border-bottom:2px solid transparent}
.ax-playground-tabs a[aria-selected=true]{color:var(--ax-link);border-color:var(--ax-link);font-weight:600}
.ax-home-playground [role=tabpanel]{border-radius:8px;outline-offset:5px}
.ax-home-playground .ax-example{border-radius:8px;padding:30px 40px}
.ax-home-playground .ax-example-plot{max-width:650px;margin:12px auto}
.ax-home-playground .ax-example-heading h2{max-width:32ch;font-size:30px}
.ax-home-playground>.ax-example-note{font-size:14px;color:var(--ax-muted);margin-top:16px}
.ax-home-next{display:grid;grid-template-columns:1fr 1fr;gap:60px;border-top:1px solid var(--ax-rule)}
.ax-home-next h2{max-width:18ch}
.ax-home-next>div{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.ax-home-next .enrolment-note{font-size:15px;color:var(--ax-muted);margin-top:14px;max-width:52ch}
@media(max-width:1000px){.ax-home-next{grid-template-columns:1fr;gap:28px}}

.ax-home-next .ax-expert-note{font-size:16px;line-height:1.6;color:var(--ax-muted);margin-top:18px;max-width:42ch}

/* Shared public navigation must fit on every route, including comparison and guides. */
.ax-nojs-navigation{display:none}
.no-js .ax-site-header .menu-toggle{display:none}
.no-js .ax-focus-reading-control{display:none!important}
@media(max-width:900px){
 .ax-nojs-navigation{display:flex;flex-wrap:wrap;gap:0 20px;padding:8px 20px;border-bottom:1px solid var(--ax-rule);background:var(--ax-reading);font-size:15px}
 .ax-nojs-navigation a{display:flex;align-items:center;min-height:44px}
 .ax-public .ax-site-header{gap:14px;padding-inline:20px}
 .ax-public .ax-site-header .brand-logo-window{width:100px;height:65px}
 .ax-public .ax-site-header .brand-logo-image{width:100%;height:100%;position:static}
 .ax-public .ax-site-header .header-actions{gap:10px;row-gap:0;min-width:0;flex-shrink:1;flex-wrap:wrap;justify-content:flex-end}
 .ax-public .ax-site-header .menu-toggle{white-space:nowrap;padding-inline:10px}
 .ax-public .ax-site-header .ax-header-action{font-size:12px;padding-inline:10px}
 .ax-public .ax-site-header .ax-languages{font-size:12px;gap:4px}
}
@media(max-width:360px){
 .ax-public .ax-site-header{gap:8px;padding-inline:16px}
 .ax-public .ax-site-header .brand-logo-window{width:68px}
 .ax-public .ax-site-header .header-actions{gap:6px;row-gap:0}
}

/* Availability statement, launch notifications, curriculum process summary */
.ax-availability-callout{display:block;margin-top:18px}
.ax-availability-callout h2{font-size:29px;margin-bottom:14px}
.ax-availability-statement{color:var(--ax-muted);max-width:62ch;margin:0 0 16px;font-size:16px;line-height:1.55}
.ax-availability-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.ax-availability-note{margin-top:12px;font-size:14px;line-height:1.5;color:var(--ax-muted);max-width:56ch}
.ax-hero-availability{margin-top:22px;font-size:15px;line-height:1.55;color:var(--ax-muted);max-width:54ch}
.course-availability{margin-top:14px;font-size:15px;line-height:1.55;color:var(--ax-muted);max-width:60ch}
.course-enrolment-state{margin-top:10px;font-size:14px;line-height:1.5;color:var(--ax-muted)}

.ax-interest-section{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:start;border-top:1px solid var(--ax-rule);padding-block:38px}
.ax-interest-intro h2{font-size:29px;margin-bottom:12px}
.ax-interest-intro p{color:var(--ax-muted);max-width:44ch}
.ax-interest-form{display:grid;gap:14px;max-width:46ch}
.ax-interest-field{display:grid;gap:6px}
.ax-interest-field label{font-size:14px;font-weight:600}
.ax-interest-field input{font:inherit;padding:11px 13px;border:1px solid var(--ax-rule);background:var(--ax-page);color:inherit;min-height:44px;width:100%;box-sizing:border-box}
.ax-interest-field input:focus-visible{outline:2px solid currentColor;outline-offset:2px}
.ax-interest-form .ax-button{justify-self:start;min-height:44px}
.ax-interest-consent{font-size:13px;line-height:1.55;color:var(--ax-muted);margin:0;max-width:52ch}
.ax-interest-feedback{margin:0;font-size:14px;line-height:1.5}
.ax-interest-feedback:empty{display:none}
.ax-interest-feedback[data-status=error]{color:var(--ax-error-text)}
.ax-interest-form.is-compact{gap:10px;max-width:40ch}

.ax-interest-page{max-width:60ch}
.ax-interest-page h1{font-size:clamp(28px,4vw,40px);line-height:1.18}
.ax-interest-page .ax-lead{margin-top:18px}
.ax-interest-confirm{margin-top:26px}
.ax-interest-withdraw{margin-top:18px}
.ax-text-button{font:inherit;background:none;border:0;padding:0;color:var(--ax-muted);text-decoration:underline;cursor:pointer;min-height:44px}
.ax-text-button:focus-visible{outline:2px solid currentColor;outline-offset:2px}

.ax-process-summary{border-top:1px solid var(--ax-rule);padding-block:38px}
.ax-process-claims{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,17rem),1fr));gap:30px;margin-top:26px}
.ax-process-claims h3{font-size:19px;margin-bottom:10px}
.ax-process-claims p{color:var(--ax-muted);font-size:16px;line-height:1.6}

/* Testimonials. There is no empty-state styling because an empty list renders
   no markup at all: a reserved card outline would imply quotes we do not have. */
.ax-testimonials{border-top:1px solid var(--ax-rule);padding-block:38px}
.ax-testimonial-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,19rem),1fr));gap:26px;margin-top:26px}
.ax-testimonial{margin:0;border:1px solid var(--ax-rule);background:var(--ax-reading);padding:24px}
.ax-testimonial blockquote{margin:0;font-size:17px;line-height:1.65}
.ax-testimonial blockquote p{margin:0}
.ax-testimonial figcaption{margin-top:14px;font-size:14px;font-weight:600}
.ax-testimonial-context,.ax-testimonial-disclosure{margin:6px 0 0;font-size:13px;color:var(--ax-muted)}
.ax-testimonial-disclosure{font-weight:600}
.ax-testimonial-note{margin-top:22px;font-size:14px;color:var(--ax-muted);max-width:70ch}

/* Review status. Status is carried by border weight and wording, not colour
   alone, so the four states stay distinguishable without colour vision. */
.ax-review-status{border:1px solid var(--ax-rule);padding:18px 20px;margin:24px 0 0;max-width:70ch}
.ax-review-status.is-reviewed{border-color:var(--ax-feedback-mark);background:var(--ax-feedback-bg)}
.ax-review-heading{font-size:15px;font-weight:600;margin:0}
.ax-review-status.is-reviewed .ax-review-heading{color:var(--ax-feedback-ink)}
.ax-review-detail{margin:8px 0 0;color:var(--ax-muted);font-size:15px;line-height:1.6}
.ax-review-warning{margin:0 0 12px;padding-bottom:12px;border-bottom:1px solid var(--ax-rule);font-size:15px;font-weight:600;line-height:1.55}
.ax-review-dimensions{margin:12px 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:8px 12px}
.ax-review-dimensions li{border:1px solid var(--ax-rule);background:var(--ax-reading);padding:2px 10px;font-size:13px}
.ax-review-date,.ax-review-revision{margin:10px 0 0;font-size:13px;color:var(--ax-muted)}
.ax-review-revision code{font-size:12px;letter-spacing:.04em}
.ax-review-status .ax-text-link{display:inline-block;margin-top:12px;font-size:14px}
.ax-review-generated{color:var(--ax-muted);font-size:15px;line-height:1.6;max-width:70ch}

/* Educator enquiry. The student-data refusal is given the weight of a warning
   rather than a hint, because it has to be read before anything is typed. */
.ax-educator-page{max-width:74ch}
.ax-educator-page h1{font-size:clamp(28px,4vw,40px);line-height:1.18}
.ax-educator-scope{margin-top:18px;color:var(--ax-muted);font-size:15px;line-height:1.6;max-width:66ch}
.ax-educator-enquiry{border-top:1px solid var(--ax-rule);padding-block:34px}
.ax-educator-warning{border-block:1px solid var(--ax-rule);padding:12px 0;margin:0 0 24px;font-size:15px;line-height:1.6;font-weight:600;max-width:62ch}
.ax-educator-form{display:grid;gap:18px;max-width:52ch}
.ax-educator-form label{display:grid;gap:6px;font-size:14px}
.ax-educator-form label>span:first-child{font-weight:600}
.ax-educator-hint{font-size:13px;color:var(--ax-muted);font-weight:400;line-height:1.5}
.ax-educator-form input,.ax-educator-form select,.ax-educator-form textarea{font:inherit;padding:11px 13px;border:1px solid var(--ax-rule);background:var(--ax-page);color:inherit;min-height:44px;width:100%;box-sizing:border-box}
.ax-educator-form textarea{min-height:120px;resize:vertical;line-height:1.55}
.ax-educator-form input:focus-visible,.ax-educator-form select:focus-visible,.ax-educator-form textarea:focus-visible{outline:2px solid currentColor;outline-offset:2px}
.ax-educator-form .ax-button{justify-self:start;min-height:44px}
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.ax-educator-feedback{margin:0;font-size:15px;line-height:1.5}
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.ax-educator-unavailable{font-size:15px;line-height:1.6;color:var(--ax-muted);max-width:60ch}
.ax-educator-today{border-top:1px solid var(--ax-rule);padding-block:34px}
.ax-educator-links{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:16px}

@media(max-width:700px){
 .ax-interest-section{grid-template-columns:1fr;gap:24px}
 .ax-availability-actions{gap:14px}
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/* Open Research Index — the public site shares one warm editorial world. */
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 --ax-tag-text:#173d68;
 --ax-rule:#cbc6bc;
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.ax-public h1{font-size:clamp(2.7rem,5.5vw,6rem)}
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.ax-public :is(svg,canvas){background:transparent}
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.ax-public .ax-site-header .brand-logo-window{width:130px;height:66px}
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.ax-public .ax-site-header .desktop-nav a{font-weight:400}
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.ax-open-index-copy h1 span{display:block}
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.ax-open-index-copy .ax-home-actions{margin-top:26px}
.ax-index-geometry{align-self:center;margin:0;min-width:0;color:#245d9d}
.ax-index-geometry svg{width:100%;height:auto;overflow:visible}
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.ax-index-geometry figcaption{margin-top:10px;text-align:right;color:#606875;font:italic 15px 'Source Serif 4',Georgia,serif}
.ax-geometry-curve{stroke:#91abc8;stroke-width:1.25}
.ax-geometry-dash{stroke:#91abc8;stroke-width:1;stroke-dasharray:6 7}
.ax-geometry-axis,.ax-geometry-proof,.ax-feature-geometry path{stroke:#7497be;stroke-width:1.05}
.ax-geometry-nodes circle,.ax-feature-geometry circle{fill:#f6f1e7;stroke:#245d9d;stroke-width:1.3}

.ax-learning-method{display:grid;grid-template-columns:minmax(260px,.72fr) minmax(480px,1.28fr);gap:clamp(42px,7vw,100px);padding-top:56px;padding-bottom:60px;border-bottom:1px solid var(--ax-rule);align-items:start}
.ax-learning-method>header h2{max-width:15ch;margin-top:10px;font-size:clamp(38px,4vw,58px);line-height:1.03;letter-spacing:-.035em;text-wrap:balance}
.ax-learning-method>header>p:last-child{max-width:48ch;margin-top:22px;color:var(--ax-muted);font-size:18px;line-height:1.6}
.ax-learning-example{min-width:0;border-top:1px solid var(--ax-text);border-bottom:1px solid var(--ax-text);padding:22px 0 20px}
.ax-learning-example-label{margin:0 0 15px;color:var(--ax-link);font-size:12px;font-weight:600;letter-spacing:.1em}
.ax-learning-example h3{max-width:28ch;font:400 clamp(27px,2.4vw,36px)/1.16 'Source Serif 4','Noto Serif SC',Georgia,serif;letter-spacing:-.02em;text-wrap:balance}
.ax-learning-example ol{list-style:none;counter-reset:learning-step;margin:24px 0 0;padding:0;border-top:1px solid var(--ax-rule)}
.ax-learning-example li{counter-increment:learning-step;display:grid;grid-template-columns:48px minmax(150px,.42fr) minmax(0,1fr);gap:18px;align-items:start;padding:18px 0;border-bottom:1px solid var(--ax-rule)}
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.ax-learning-example li strong{font-size:15px;line-height:1.5}
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.ax-learning-handoff{margin:18px 0 0;font:italic 17px/1.55 'Source Serif 4','Noto Serif SC',Georgia,serif;color:var(--ax-text)}

.ax-ai-evidence{display:grid;grid-template-columns:minmax(260px,.72fr) minmax(520px,1.28fr);gap:clamp(42px,7vw,100px);padding-top:52px;padding-bottom:54px;border-bottom:1px solid var(--ax-rule)}
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.ax-ai-evidence-intro>p:not(.ax-index-number){max-width:52ch;margin-top:18px;color:var(--ax-muted);font-size:17px;line-height:1.6}
.ax-ai-evidence-intro .ax-button{margin-top:22px}
.ax-ai-evidence-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--ax-rule)}
.ax-ai-evidence-grid article{min-width:0;padding:22px 22px 8px 0}
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.ax-ai-evidence-grid p{margin-top:12px;color:var(--ax-muted);font-size:15px;line-height:1.6}

.ax-index-path{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding-top:30px;padding-bottom:34px;border-bottom:1px solid var(--ax-rule)}
.ax-index-path article{display:flex;flex-direction:column;min-width:0;padding:0 clamp(20px,3vw,42px)}
.ax-index-path article:first-of-type{padding-left:0}
.ax-index-path article:last-of-type{padding-right:0}
.ax-index-path article+article{border-left:1px solid var(--ax-rule)}
.ax-index-path h3{margin-top:10px;font:400 clamp(27px,2.3vw,38px)/1.12 'Source Serif 4','Noto Serif SC',Georgia,serif;letter-spacing:-.025em}
.ax-index-path ul{list-style:none;margin:18px 0 20px;padding:0;color:var(--ax-muted);font-size:17px;line-height:1.52}
.ax-index-path .ax-text-link{margin-top:auto;align-self:flex-start}

.ax-feature-directory{display:grid;grid-template-columns:minmax(0,.9fr) minmax(520px,1.1fr);gap:clamp(45px,7vw,100px);padding-top:56px;padding-bottom:60px;border-bottom:1px solid var(--ax-rule)}
.ax-home-feature{position:relative;min-width:0;padding-right:clamp(0px,2vw,30px);border-right:1px solid var(--ax-rule)}
.ax-home-feature h2{max-width:17ch;font-size:clamp(39px,4vw,58px);line-height:1.02;letter-spacing:-.035em}
.ax-home-feature>p{max-width:45ch;margin-top:22px;color:var(--ax-muted);font-size:19px;line-height:1.55}
.ax-home-feature>.ax-text-link{margin-top:22px}
.ax-feature-geometry{max-width:360px;margin:28px auto 0}
.ax-feature-geometry svg{width:100%;height:auto}
.ax-directory-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:18px}
.ax-directory-heading h2{font-size:clamp(26px,2.3vw,34px)}
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.ax-directory-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--ax-rule)}
.ax-directory-grid article{min-width:0;padding:24px 24px 22px 0;border-bottom:1px solid var(--ax-rule)}
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.ax-directory-grid p{min-height:3.2em;margin-top:9px;color:var(--ax-muted);font-size:16px;line-height:1.5}
.ax-directory-grid .ax-text-link{margin-top:12px;font-size:15px}

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.ax-secondary-explore h2{max-width:22ch;font-size:clamp(29px,3vw,42px)}
.ax-secondary-explore p{max-width:60ch;margin-top:15px;color:var(--ax-muted);font-size:17px}
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.ax-secondary-explore nav svg{width:17px}

.ax-article-pathways{margin-top:45px;padding-top:30px;border-top:1px solid var(--ax-rule)}
.ax-article-pathways>p{margin-top:13px;color:var(--ax-muted)}
.ax-article-pathways>div{display:grid;grid-template-columns:1fr 1fr;margin-top:24px;border-top:1px solid var(--ax-rule)}
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.ax-reveal-pending{opacity:.001;transform:translateY(14px)}
.ax-reveal-complete{opacity:1;transform:none}
@media(prefers-reduced-motion:no-preference){
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}
@media(prefers-reduced-motion:reduce){
 .ax-reveal-pending{opacity:1;transform:none}
}

@media(max-width:1100px){
 .ax-public .ax-site-header .desktop-nav{gap:16px}
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 .ax-home-feature{display:grid;grid-template-columns:1fr minmax(260px,.55fr);gap:0 36px;border-right:0;border-bottom:1px solid var(--ax-rule);padding:0 0 42px}
 .ax-home-feature h2,.ax-home-feature>p,.ax-home-feature>.ax-text-link{grid-column:1}
 .ax-feature-geometry{grid-column:2;grid-row:1/6;align-self:center}
}
@media(max-width:960px){
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 .ax-public .ax-site-header .menu-toggle{display:block}
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 .ax-public .ax-site-header .mobile-nav .ax-focus-reading-control{display:flex}
}
@media(max-width:900px){
 .ax-public .ax-site-header .header-actions>.ax-focus-reading-control{display:none}
 .ax-public .ax-site-header .mobile-nav .ax-focus-reading-control{display:flex}
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 .ax-index-geometry{width:min(680px,100%);margin-inline:auto}
 .ax-index-path{grid-template-columns:1fr}
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 .ax-index-path article+article{border-left:0;border-top:1px solid var(--ax-rule)}
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 .ax-secondary-explore{grid-template-columns:1fr}
}
@media(max-width:640px){
 .ax-public{--site-gutter:20px}
 .ax-public .ax-site-header{min-height:68px}
 .ax-public .ax-site-header .brand-logo-window{width:92px;height:56px}
 .ax-open-index-hero{padding-top:38px;padding-bottom:28px;gap:28px}
 .ax-open-index-copy h1{font-size:clamp(2.55rem,11.5vw,4rem);line-height:1.02}
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 .ax-open-index-copy .ax-lead{margin-top:21px}
 .ax-index-geometry figcaption{text-align:left}
 .ax-learning-method{padding-top:40px;padding-bottom:42px}
 .ax-learning-method>header h2{font-size:clamp(34px,10vw,46px)}
 .ax-learning-example{padding-top:18px}
 .ax-learning-example li{grid-template-columns:34px minmax(0,1fr);gap:7px 10px}
 .ax-learning-example li strong{grid-column:2}
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 .ax-ai-evidence{padding-top:40px;padding-bottom:42px}
 .ax-index-path{padding-top:12px;padding-bottom:14px}
 .ax-index-path ul{columns:1}
 .ax-feature-directory{padding-top:42px;padding-bottom:42px}
 .ax-home-feature{display:block;padding-bottom:34px}
 .ax-home-feature h2{font-size:clamp(36px,11vw,48px)}
 .ax-feature-geometry{margin-top:26px}
 .ax-directory-heading{align-items:flex-start}
 .ax-directory-grid{grid-template-columns:1fr}
 .ax-directory-grid article,.ax-directory-grid article:nth-child(even){padding:21px 0;border-left:0}
 .ax-directory-grid p{min-height:0}
 .ax-secondary-explore{padding-top:38px;padding-bottom:38px}
 .ax-article-pathways>div{grid-template-columns:1fr}
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@media(forced-colors:active){
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