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@media(max-width:1100px){header{padding:0 4%;height:80px}.edition,.brand-divider{display:none}nav{gap:22px}.hero{min-height:710px;height:calc(100svh - 80px)}.hero h1{font-size:78px}.hero-content{padding-top:85px}.orbit-label{right:7%;top:47%}.heading-row{gap:30px}.heading-row>p{max-width:280px}.section{padding:75px 5%}.chapter{padding:22px 19px}.model-card{padding:23px 18px}.model-price{gap:16px}.split-section{gap:5%}.library-tools{align-items:flex-start;flex-direction:column}.search input{width:250px}.hero-bottom{font-size:7px}.advanced-grid{gap:22px}footer .edition{display:none}}
@media(max-width:760px){html{scroll-padding-top:25px}header{height:74px;padding:0 6%}.brand{font-size:21px}.brand-mark{font-size:32px}.brand-mark span{font-size:21px}.header-cta{margin-left:auto;margin-right:18px;font-size:10px;padding:8px 12px}.header-cta span{margin-left:8px}.menu-button{display:block}nav{display:none;position:absolute;top:74px;left:0;right:0;flex-direction:column;background:#171b13;padding:20px 6%;border-bottom:1px solid var(--line);gap:0}nav.open{display:flex}nav a{padding:12px 0}.hero{height:auto;min-height:780px}.hero-art{background-position:63% 50%;opacity:.75}.hero-art:after{background:linear-gradient(90deg,#070a08b0,transparent),linear-gradient(0deg,#090b09,transparent 45%)}.hero-content{padding:75px 7% 130px}.hero .eyebrow{font-size:7px;letter-spacing:1.6px}.hero h1{font-size:clamp(56px,10.9vw,80px);letter-spacing:-3px;margin-top:32px}.hero p{font-size:13px}.hero-actions{gap:22px;flex-wrap:wrap}.hero .button{padding:15px 18px;font-size:11px;gap:20px}.text-link{font-size:11px}.hero-proof{font-size:8px;gap:14px;flex-wrap:wrap}.orbit-label{top:auto;bottom:90px;font-size:8px}.orbit-label small{font-size:6px}.hero-bottom{left:7%;right:7%;gap:25px}.hero-bottom>span:last-child{display:none}.evidence-strip{padding:19px 7%;flex-direction:column;gap:5px;font-size:10px}.evidence-strip a{font-size:9px}.section{padding:62px 7%}.section-top>.small{font-size:9px}.eyebrow{font-size:9px;letter-spacing:1.5px}.heading-row{display:block;margin-top:21px;margin-bottom:30px}h2{font-size:37px;letter-spacing:-1.7px}h2 em{letter-spacing:-1px}.heading-row>p{max-width:100%;font-size:12px;margin-top:20px}.chapter-grid{grid-template-columns:1fr 1fr}.chapter{min-height:173px;padding:21px 15px}.chapter h3{font-size:16px;margin-top:25px}.chapter p{font-size:10px}.chapter-arrow{right:15px;top:17px}.journey-footer{gap:10px;font-size:9px}.quiet-button{font-size:10px}.split-section{grid-template-columns:1fr;gap:35px}.split-section .lede{font-size:16px}.brief-card,.effort-panel,.calculator{padding:25px}.model-grid{grid-template-columns:1fr 1fr;gap:10px}.model-card{padding:23px 17px}.model-card h3{font-size:30px}.model-card p{min-height:65px;font-size:11px}.model-price{font-size:15px;gap:16px}.model-foot{flex-direction:column;gap:15px;font-size:11px}.model-foot small{font-size:9px}.before-after{grid-template-columns:1fr}.before{border-right:0;border-bottom:1px solid #3c4432}.before,.after{padding:25px}.before>p{font-size:21px;margin-top:20px}.after pre{font-size:11px}.annotations{grid-template-columns:1fr;gap:12px}.workshop-tabs{gap:6px}.workshop-tabs button{padding:9px 11px;font-size:9px}.pill{font-size:7px;padding:6px 9px}.builder-fields{grid-template-columns:1fr}.filters{gap:6px}.filters button{font-size:10px;padding:8px 11px}.example-grid{grid-template-columns:1fr 1fr;gap:10px}.example-card{padding:20px 16px;min-height:245px}.example-card h3{font-size:18px}.example-card p{font-size:11px}.example-card .eyebrow{font-size:7px;letter-spacing:1px}.habit-grid{grid-template-columns:1fr}.advanced-grid{grid-template-columns:1fr;gap:25px}.quiz{grid-template-columns:1fr;gap:15px;padding:25px}.source-policy{grid-template-columns:1fr;gap:17px}.source-row{grid-template-columns:20px 1fr 15px;gap:10px;font-size:11px}.source-row small{display:none}.closing{padding:70px 7%}.closing h2{font-size:42px}footer{flex-wrap:wrap;padding:30px 7%;gap:18px}footer>span{font-size:8px}footer>a:last-child{width:100%;font-size:9px}dialog{padding:35px 23px}dialog h2{font-size:29px}dialog pre{padding:16px;font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.hero-art{transform:none!important}}
/* Long-form reading and persistent orientation. */
header{position:sticky;top:0}.hero-art{animation:arrive 2s var(--ease) both,horizon-drift 28s 2s ease-in-out infinite alternate}.heading-row>p,.split-section>div>p,details p,details li,.advanced-grid p{font-size:14px}.example-card p,.habit p{font-size:13px}.after pre,dialog pre{font-size:13px}.complete,.copy-button,.quiet-button{min-height:36px}.migration-comparison{margin-top:28px}.migration-row{padding:12px 0;border-top:1px solid var(--line)}.migration-row b{font-size:13px;font-weight:500;color:#d1d8c0}.migration-row p{margin:4px 0}.example-card .eyebrow{pointer-events:none}@keyframes horizon-drift{from{transform:scale(1)}to{transform:scale(1.035)}}
@media(max-width:760px){html{scroll-padding-top:95px}.heading-row>p,.split-section>div>p,details p,details li,.advanced-grid p,.habit p{font-size:14px}.example-card p{font-size:12px}.before p{font-size:22px}.after pre,dialog pre{font-size:12px}.example-card{min-height:255px}.source-row{min-height:48px}.workshop-tabs button,.filters button{min-height:40px}.hero-art{animation:none}.hero-proof{color:#b5bca9}.hero .eyebrow{color:#d8dccf}}
@media(prefers-reduced-motion:reduce){.hero-art{animation:none!important}}
/* Interactive edition */
.language-control{margin-left:20px}.language-control select{padding:6px 3px;border:0;background:none;margin:0;color:var(--ink);font-size:11px;width:49px}.language-control option{background:var(--bg)}.learning-paths{margin-top:30px}.learning-paths>div{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:15px}.learning-paths a{border:1px solid var(--line);padding:17px 20px;transition:border-color .2s}.learning-paths a:hover{border-color:var(--accent)}.learning-paths b{display:block;font-size:13px;font-weight:500}.learning-paths small{font-size:10px}.model-finder,.prompt-challenge,.mission-control{display:grid;grid-template-columns:1fr 1fr;gap:40px;background:#1b2116;border:1px solid #3b4630;padding:32px;margin:30px 0}.model-finder p,.prompt-challenge p,.mission-control p{font-size:13px}.model-finder label{display:block;font-size:12px;margin-top:18px}.model-finder label:first-child{margin-top:0}#finder-result{border-top:1px solid #414c34;margin-top:23px;padding-top:22px}#finder-result b{display:block;font:500 36px var(--display);margin:10px 0}#finder-result b span{color:var(--accent);font-size:25px}#finder-result a{font-size:12px;color:#e0c397}.brief-switches{display:flex;flex-wrap:wrap;gap:9px}.brief-switches label{display:flex;gap:9px;align-items:center;border:1px solid #596548;padding:10px 13px;font-size:12px;cursor:pointer}.brief-switches input{accent-color:var(--accent);width:17px;height:17px}.brief-switches label:has(input:checked){border-color:#c8d2b3;background:#2d3824}#brief-coverage{font-size:11px;color:#c8d2b3}#assembled-brief{max-height:350px;overflow:auto;padding:18px;background:#10150d;font-size:12px;min-height:100px}.mission-buttons{display:flex;gap:10px}.mission-buttons button{background:none;border:1px solid #606e4e;padding:11px 15px;font-size:12px;flex:1}.mission-buttons button.correct{background:#344328;border-color:#bac89b}.mission-buttons button:disabled{cursor:default}.back-to-guide{position:fixed;bottom:20px;right:22px;background:#d4dcc1;color:#20271a;border:1px solid #9eaa87;border-radius:4px;font-size:12px;padding:10px 15px;z-index:25;opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s}.back-to-guide.show{opacity:1;pointer-events:auto;transform:none}.copy-button:disabled{opacity:.5;cursor:default}
@media(max-width:1100px){nav{gap:16px}.language-control{margin-left:10px}.header-cta{padding:10px 13px}}
@media(max-width:760px){.language-control{margin-left:auto;margin-right:15px}.header-cta{display:none}.learning-paths>div{grid-template-columns:1fr}.model-finder,.prompt-challenge,.mission-control{grid-template-columns:1fr;gap:20px;padding:24px}.back-to-guide{bottom:15px;right:15px;padding:9px 13px}.back-to-guide span{display:none}.mission-buttons button{font-size:11px;padding:10px}.model-finder p,.prompt-challenge p,.mission-control p{font-size:14px}}
@media(prefers-reduced-motion:reduce){.back-to-guide{transition:none}}
.dialog-meta{flex-wrap:wrap}.dialog-meta>span{width:100%}.filters button{padding-inline:12px}.library-tools{flex-wrap:wrap}.language-control select{min-height:36px}.example-card .card-link{line-height:1.6}
@media(max-width:760px){html[lang=fr] .hero h1,html[lang=nl] .hero h1{font-size:45px;letter-spacing:-2.5px}html[lang=fr] h2,html[lang=nl] h2{font-size:34px}html[lang=fr] .hero .eyebrow,html[lang=nl] .hero .eyebrow{max-width:300px;line-height:1.8}.example-grid{grid-template-columns:1fr}.example-card{min-height:195px}.example-card p{font-size:14px}.hero-proof{line-height:1.7}.model-price{gap:12px}.model-card .eyebrow{font-size:8px}}
/* Practice lab: chapter-led learning and a distinct assessment state. */
#practice{scroll-margin-top:110px;align-items:start}
.quiz-intro h3{font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.12;margin:18px 0}
.quiz-intro>p{font-size:.92rem;max-width:45ch}
.quiz-select-label{display:grid;gap:8px;margin:24px 0 14px;font-size:.8rem}
#quiz-chapter{width:100%;max-width:100%;padding:12px;background:var(--paper,#f4f0e8);color:#242721;border:1px solid #a6aaa1;border-radius:4px}
.quiz-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:16px 0}
.quiz-stage{min-width:0}
#quiz-progress{display:block;width:100%;height:5px;accent-color:#b75331;margin:12px 0 24px}
#quiz-feedback{font-size:.9rem;line-height:1.6}
#quiz-feedback p{margin:10px 0}
#quiz-question:focus{outline:2px solid #b75331;outline-offset:6px}
.quiz-score{font-size:2.5rem;margin:16px 0}.quiz-score span{font-size:1rem}
#quiz-results summary{font-size:.95rem;line-height:1.5}
#quiz-results details p{font-size:.9rem}
@media(max-width:600px){#practice{padding:24px 18px}.quiz-actions>button{max-width:100%;white-space:normal}#quiz-position{line-height:1.7}}