@charset "UTF-8";
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25px;font-size:13px}.footer-nav a{text-decoration:none}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:28px;padding-top:20px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.status-toast{position:fixed;right:24px;bottom:24px;max-width:min(440px,calc(100vw - 48px));padding:15px 22px;background:#143f47;color:white;z-index:150;border-radius:3px;box-shadow:0 8px 30px #0002;font-size:14px;opacity:0;transform:translateY(10px);transition:.2s;pointer-events:none}.status-toast.visible{opacity:1;transform:translateY(0)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}body[data-page=models]{--accent:#50358c;--wash:#ece5f1}body[data-page=learning]{--accent:#674184;--wash:#eee6ef}body[data-page=research]{--accent:#286149;--wash:#e7eee0}body[data-page=visuals]{--accent:#a44431;--wash:#f1e8df}body[data-page=assessment]{--accent:#925135;--wash:#f0e9df}
@media(min-width:1500px){.hero-home .hero-media{margin-right:-45px}.hero-home h1{font-size:88px}}
@media(max-width:1100px){.desktop-nav{gap:17px}.desktop-nav .wide-link{display:none}.hero-grid{gap:28px}.article-layout{gap:45px;grid-template-columns:minmax(0,1fr) 210px}.intro-grid{gap:40px}.hero-home h1{font-size:clamp(3rem,6vw,5.3rem)}.wrap{width:calc(100% - 56px)}}
@media(max-width:820px){.wrap{width:calc(100% - 40px)}.header-inner{min-height:86px}.desktop-nav>a{display:none}.menu-panel{top:75px;right:20px}.hero{padding:42px 0}.hero-grid,.hero-home .hero-grid{grid-template-columns:1fr;gap:28px}.hero-home h1{font-size:clamp(3.7rem,12vw,5.8rem);max-width:620px}.hero-copy{max-width:650px}.hero-copy .dek{max-width:620px}.hero-media,.hero-home .hero-media{margin:10px 8px 18px 0;max-width:680px}.hero-media img{aspect-ratio:3/2}.hero-home .hero-media::after{bottom:2px;left:10px}.hero-meta{margin-top:23px}.section{padding:55px 0}.section-head{display:block}.section-head p{margin-top:22px;max-width:650px}.intro-grid{grid-template-columns:1fr;gap:15px}.intro-grid .intro{font-size:19px}.article-layout{grid-template-columns:1fr;gap:35px}.margin-note{max-width:650px}.split-tool{grid-template-columns:1fr}.quote-band .wrap{grid-template-columns:1fr;gap:25px}.quote-band p{max-width:580px}.story-step{padding:0 15px;gap:10px}.story-step strong{font-size:20px}.story-step .step-no{font-size:22px}.activity-grid{gap:15px}.activity-card{padding:22px}.activity-card::before{left:22px;right:22px}.activity-card h3{font-size:26px}.workbench{padding:27px}.process-grid{grid-template-columns:1fr 1fr}.process-item:nth-child(3){border-left:0}.process-item:nth-child(n+3){border-top:1px solid var(--line)}.chapter-list{gap:0 30px}.footer-top{grid-template-columns:1fr 1fr;gap:30px}}
@media(max-width:560px){body{font-size:16px}.wrap{width:calc(100% - 36px)}.brand-words{font-size:19px}.brand-words small{font-size:8px}.brand-mark{grid-template-columns:12px 12px}.brand-mark i{height:17px}.header-inner{gap:15px}.nav-button{padding:9px 12px;gap:10px;font-size:12px}.menu-panel{grid-template-columns:1fr;max-height:75vh;overflow:auto;padding:18px 24px;right:18px;width:calc(100vw - 36px)}.menu-panel a{font-size:14px;padding:8px 0}h1{font-size:47px;letter-spacing:-.045em}.hero-home h1{font-size:clamp(2.5rem,12.5vw,3.125rem)}.hero-copy .dek{font-size:18px}.hero{padding-top:34px}.eyebrow{font-size:10px;letter-spacing:.14em;margin-bottom:20px}.hero-media::before{inset:14px -9px -10px 15px}.hero-media figcaption{font-size:10px}.hero-home .hero-media::after{font-size:16px;max-width:240px;bottom:-12px}.hero-meta{font-size:11px;gap:10px}.hero-meta span+span::before{margin-right:10px}.button{padding:12px 16px;font-size:13px;gap:13px}.story-strip .wrap{grid-template-columns:1fr;padding-block:10px}.story-step,.story-step:first-child{padding:16px 0;border-left:0;border-top:1px solid var(--line);gap:20px}.story-step:first-child{border-top:0}.story-step span{font-size:12px}.story-step strong{font-size:23px}.chapter-list{grid-template-columns:1fr}.chapter-link{padding:22px 0}.chapter-link h3{font-size:27px}.section-head h2{font-size:35px}.article-section h3{font-size:28px}.article-section p{font-size:16px}.workbench{padding:22px 18px;box-shadow:4px 5px 0 #e6e7db;margin-right:4px}.workbench h3{font-size:28px}.workbench::before{width:60px;right:22px}.example-columns{grid-template-columns:1fr}.control-row{gap:8px}.choice-button,.tab{font-size:12px;padding:10px 12px}.tab-list{gap:7px}.output-paper{padding:18px}.prompt-text{font-size:13px}.process-item{padding:20px 14px}.process-item h4{font-size:23px}.process-item p{font-size:13px}.filter-bar{grid-template-columns:1fr;gap:15px}.activity-grid{grid-template-columns:1fr}.activity-card{padding:24px}.download-row{grid-template-columns:45px 1fr 18px;gap:18px;padding:24px 0}.file-icon{width:42px;height:55px;font-size:9px}.download-row h3{font-size:24px}.download-row p{font-size:12px}.quote-band{padding:50px 0}.quote-band h2{font-size:36px}.next-chapter{padding:30px 0;gap:20px}.next-chapter a{font-size:26px}.next-chapter svg{width:28px;height:28px;flex-shrink:0}.footer-top{grid-template-columns:1fr;gap:24px}.footer-top p{max-width:400px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:6px}.demo-toolbar{display:block}.demo-toolbar .button{margin-top:14px}.demo-frame{height:650px}.sample-response{font-size:17px;padding:20px}.rubric-grid th,.rubric-grid td{min-width:165px}.result-count{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
@media print{.site-header,.site-footer,.next-chapter,.actions,.hero-media,.copy-button,.status-toast,.filter-bar,.nav-button{display:none}.wrap{width:100%;max-width:none}.hero,.section{padding:20px 0}.hero-grid,.article-layout,.split-tool,.activity-grid{display:block}.workbench,.activity-card{box-shadow:none;break-inside:avoid;margin:15px 0}body{background:white;font-size:11pt}h1{font-size:28pt}h2{font-size:22pt}h3{font-size:17pt}.prompt-text{max-height:none;overflow:visible}.tab-panel[hidden]{display:block}.demo-frame{display:none}}
/* Small semantic components shared by the teaching exercises. */
.source-details{margin-top:26px;font-size:13px}.source-details summary{cursor:pointer;color:var(--accent);font-weight:650}.source-details .source-list li{font-size:12px;line-height:1.65}.source-details a{overflow-wrap:anywhere}.rating-fieldset{border:0;padding:0;margin:24px 0 0}.rating-fieldset legend{font-weight:650;font-size:14px;margin-bottom:15px}.rating-fieldset .radio{margin-bottom:10px}.process-item h3{font-size:25px;letter-spacing:-.03em;margin:10px 0}.example-block .tool-label{font:700 11px/1.5 var(--sans);color:var(--accent);text-transform:uppercase;letter-spacing:.1em}.output-paper h3{font-size:25px}.button:disabled{cursor:default;opacity:.5;transform:none}.workbench>h2{font-size:clamp(2rem,3.2vw,3.1rem)}
@media(max-width:380px){.nav-button{font-size:0;gap:0;padding:11px;min-width:44px;min-height:44px;justify-content:center}.nav-button svg{width:18px;height:18px;flex-shrink:0}.hero-meta{gap:7px}.hero-meta span+span::before{margin-right:7px}}
@media(max-width:820px){.hero-home .hero-media figcaption{display:none}}