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@media(max-width:68.75rem){.container{width:calc(100% - 4rem)}.header-inner nav{gap:1.3rem}.hero{gap:3rem}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topic-card,.topic-card:nth-child(n+4){grid-column:auto}.topic-card:last-child{grid-column:1 / -1}.topic-card{min-height:260px}.topic-card h3{font-size:1.65rem}.card-top{margin-bottom:1.2rem}.topic-card p{max-width:360px}.understand-grid{gap:3rem}.workbook-intro{grid-template-columns:1fr .85fr;gap:2rem}.workbook-intro-icon{display:none}.article-layout{gap:3rem;grid-template-columns:190px minmax(0,1fr)}.hero-index{font-size:8rem}.footer-bottom{font-size:.875rem;align-items:start}.footer-bottom>span:last-of-type{max-width:480px}.help-layout{gap:2rem;grid-template-columns:1fr}.help-options{gap:1.5rem}.help-options>div+div{padding-left:1.5rem}}
@media(max-width:50rem){.container{width:calc(100% - 3rem)}.header-inner{min-height:80px}.brand-mark{width:2.7rem;height:2.7rem;font-size:2.3rem}.brand>span:last-child{font-size:1.65rem}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:6px;padding:.65rem;background:transparent;border:1px solid #b5c2b1;border-radius:6px;width:44px;height:44px;flex-shrink:0}.menu-toggle>span{display:block;width:20px;height:1px;background:var(--ink)}.header-inner nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--paper);padding:1rem 1.5rem 1.5rem;border-bottom:1px solid var(--line);box-shadow:0 10px 20px #24433e12;align-items:stretch;gap:.25rem}.header-inner nav.is-open{display:flex;flex-direction:column}.header-inner nav>a:not(.nav-help){padding:.7rem;border:0}.nav-dropdown summary{padding:.7rem}.dropdown-panel{position:static;box-shadow:none;border:0;border-left:1px solid var(--line);border-radius:0;margin:0 0 .6rem 1.2rem;width:auto;padding:0 .4rem;font-size:.875rem}.nav-help{margin-top:.5rem;width:fit-content}.hero{gap:2rem;padding-block:3rem 2rem}.hero h1{font-size:3.7rem}.hero-copy>p{font-size:1rem}.hero-visual img{min-height:380px;border-top-left-radius:150px}.hero-actions{gap:1rem}.hero-actions .button{font-size:.875rem;padding:.8rem 1rem}.image-caption{font-size:.875rem;gap:.4rem;max-width:100%}.caption-line{width:17px}.section-heading{align-items:start}.section-heading>p{max-width:190px;font-size:.875rem}.topics-section{padding-block:3rem}.understand-section{padding-block:3.5rem}.understand-grid{gap:2rem}.workbook-intro{padding-block:3.5rem}.workbook-note{padding:3rem 1.5rem 1.5rem;margin-left:0}.workbook-note p.note-title{font-size:1.9rem}.note-bottom{flex-direction:column;gap:.3rem}.help-layout{grid-template-columns:1fr}.help-options{padding-top:0;gap:1.5rem;grid-template-columns:1fr}.help-options>div+div{padding-left:0;padding-top:1.5rem;border-left:0;border-top:1px solid #577467}.help-section h2{font-size:2.5rem}.footer-main{flex-wrap:wrap;gap:1.4rem}.footer-main p{margin-left:auto}.footer-main>a:last-child{width:100%}.footer-bottom{flex-wrap:wrap;gap:.6rem 1.2rem}.footer-bottom>span:last-of-type{max-width:100%;order:3;width:100%}.footer-bottom>a{margin-left:auto}.topic-hero{padding-block:2.75rem}.hero-index{display:none}.topic-hero h1{font-size:3.3rem}.article-layout{display:block;padding-block:2rem}.article-nav{position:static;display:flex;flex-direction:row;flex-wrap:wrap;gap:.5rem 1.25rem;border-left:0;border-bottom:1px solid var(--line);padding:0 0 1.5rem;margin-bottom:2.5rem}.article-nav>.eyebrow{width:100%;margin-bottom:.25rem}.article-body{max-width:none}.article-body>section{margin-bottom:3rem}.product-grid{gap:1.25rem}.product-cover{padding:1.5rem;min-height:285px}.product-cover h2{font-size:2.05rem}.product-info{padding:1.25rem}.shop-status{align-items:start}.shop-hero h1{font-size:3.1rem}.shop-note{width:calc(100% - 3rem)}}
@media(max-width:36.25rem){.container{width:calc(100% - 2.5rem)}.preview-strip{font-size:.875rem;padding-block:.4rem}.hero{grid-template-columns:1fr;gap:2rem;padding-top:2.25rem}.hero h1{font-size:4.05rem;line-height:1.01}.hero-copy>.eyebrow{font-size:.875rem;margin-bottom:1rem}.hero-copy>p{max-width:100%;margin-top:1.3rem;font-size:1rem}.hero-actions{margin-top:1.4rem}.hero-visual{height:300px;padding-bottom:1.5rem}.hero-visual img{min-height:0;max-height:none;border-radius:105px 12px 12px 12px;object-position:center 54%}.image-caption{font-size:.875rem;bottom:-.1rem}.section-heading{display:block;margin-bottom:1.5rem}.section-heading h2{font-size:2.2rem}.section-heading>.eyebrow,.section-heading .eyebrow{font-size:.875rem}.section-heading>p{margin-top:1rem;max-width:none}.section-heading>p br{display:none}.topic-grid{grid-template-columns:1fr;gap:.8rem}.topic-card{min-height:0;padding:1.3rem}.card-top{margin-bottom:.7rem}.topic-card h3{font-size:1.8rem}.topic-card p{margin:.7rem 0 1.1rem;font-size:1rem;max-width:100%}.topic-card .text-link{font-size:.9rem}.understand-grid{grid-template-columns:1fr;gap:1.4rem}.understand-grid h2{font-size:2.55rem}.understand-copy .large-copy{font-size:1.2rem}.workbook-intro{grid-template-columns:1fr;gap:1.7rem}.workbook-intro h2{font-size:2.55rem}.workbook-note{border-top-left-radius:90px;padding:2.7rem 2rem 1.5rem}.workbook-note p.note-title{font-size:2.15rem}.note-bottom{flex-direction:row}.editorial-note{flex-direction:column;gap:.5rem}.editorial-note p{font-size:.875rem}.help-section{padding-block:2.75rem}.help-options{grid-template-columns:1fr;gap:1.4rem}.help-options>div+div{border-left:0;border-top:1px solid #577467;padding-left:0;padding-top:1.5rem}.help-options p{max-width:40rem;font-size:1rem}.help-options a.help-source{font-size:.875rem}.footer-main{display:block}.footer-main p{margin-top:1.4rem}.footer-main>a:last-child{margin-top:1.25rem}.footer-bottom{font-size:.875rem}.breadcrumb{font-size:.875rem;gap:.4rem}.topic-hero h1{font-size:2.6rem;overflow-wrap:break-word}.topic-hero .eyebrow{font-size:.875rem}.topic-hero p{font-size:1rem}.topic-meta{font-size:.875rem;gap:.8rem;flex-wrap:wrap}.topic-meta>span+span{padding-left:.8rem}.article-nav{font-size:.875rem}.article-body h2{font-size:2.05rem}.article-body .large-copy{font-size:1.1rem}.symptom-grid{grid-template-columns:1fr;gap:.75rem}.symptom p{font-size:1rem}.small-note{font-size:.875rem!important}.selftest-panel,.article-workbook{padding:1.3rem}.panel-heading{flex-wrap:wrap;gap:.65rem}.panel-heading .eyebrow{font-size:.875rem}.test-steps{gap:.5rem}.test-steps>div{flex-direction:column;align-items:start;gap:.3rem}.test-steps strong{font-size:.875rem}.workbook-price-row{align-items:start;flex-direction:column;gap:1rem}.workbook-price-row .button{width:100%}.outline-list strong{font-size:.9375rem}.outline-list li span{font-size:1rem}.content-details summary{font-size:.9rem}.shop-hero{padding-block:2.7rem 2rem;text-align:left}.shop-hero .eyebrow{font-size:.875rem}.shop-hero h1{font-size:2.65rem}.shop-hero>p{font-size:1rem}.shop-hero>p br{display:none}.shop-status{align-items:start;flex-direction:column;font-size:.875rem;gap:.6rem}.product-grid{grid-template-columns:1fr}.product-cover{padding:1.75rem;min-height:285px}.product-cover h2{font-size:2.65rem}.product-info{padding:1.5rem}.product-info>p{font-size:1rem}.product-bottom span{font-size:.875rem}.shop-note{text-align:left}.shop-note h2{font-size:2rem}.not-found h1{font-size:3rem}.brand small{font-size:.75rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

@media(max-width:36.25rem){.brand small{display:none}}

/* Topic additions and progressive scroll animation: readable without JavaScript. */
.mist{background:#e7e8ef}
#ueberblick>p{font-size:1rem;line-height:1.7}#ueberblick p+p{margin-top:1rem}
.reflection-note li{padding-block:.35rem}
.symptom.is-revealing{animation:symptom-reveal .6s cubic-bezier(.2,.65,.3,1) both;animation-delay:var(--reveal-delay,0ms)}
@keyframes symptom-reveal{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:reduce){.symptom.is-revealing{animation:none!important}}
@media print{.symptom.is-revealing{animation:none!important;opacity:1!important;transform:none!important}}

/* Clear reading sizes and the purpose of the workbooks. */
.symptom p,.reflection-note ol,.product-info>p{font-size:1rem}
.reflection-intro{margin-top:.75rem;font-size:1rem}
.article-workbook .workbook-purpose,.shop-hero .workbook-purpose,.workbook-intro .workbook-purpose{font-size:1rem;line-height:1.65;margin:1.25rem 0 1.5rem;padding:.9rem 1rem;border-left:3px solid #839781;background:#ffffff70;text-align:left}
.workbook-purpose strong{color:var(--ink)}
.shop-hero .workbook-purpose{max-width:740px;margin-inline:auto}
/* A quieter workbook note follows the three primary support contacts. */
.help-workbooks{display:flex;align-items:center;justify-content:space-between;gap:2rem;border-top:1px solid #577467;margin-top:.75rem;padding-top:1.5rem}
.help-workbooks>div{max-width:760px}
.help-workbooks h3{font-family:var(--sans);font-size:1rem;font-weight:600;line-height:1.5;color:#edf0e8;margin-bottom:.4rem}
.help-workbooks p{font-size:1rem;line-height:1.65}
.help-workbooks p.help-workbooks-meta{font-size:.875rem;margin-top:.5rem;color:#c3d0bf}
.help-workbooks>a{flex-shrink:0;display:inline-flex;align-items:center;gap:.65rem;min-height:44px;font-size:.875rem;text-decoration:underline;text-underline-offset:5px;color:#edf0e8}
@media(max-width:56.25rem){.help-workbooks{flex-direction:column;align-items:flex-start;gap:.5rem}}

/* Original PDF covers and sample pages, in the existing brand. */
.product-real-cover{display:flex;align-items:center;justify-content:center;padding:2rem;min-height:0;border-bottom:1px solid var(--line)}
.product-real-cover img{width:min(100%,265px);height:auto;aspect-ratio:595/842;object-fit:contain;box-shadow:0 12px 26px #24433e20;border:1px solid #d8dfd8}
.product-info h2{font-size:clamp(1.8rem,2.3vw,2.35rem);line-height:1.15;margin:.85rem 0 1rem;overflow-wrap:anywhere}
.book-facts{display:flex;flex-wrap:wrap;gap:.4rem .8rem;font-size:.875rem;color:var(--accent)}
.book-facts span+span{border-left:1px solid #bcc9bd;padding-left:.8rem}
.book-format{display:flex;flex-direction:column;gap:.25rem;margin-top:1rem;font-size:.875rem;color:var(--muted)}
.book-sample-link{width:100%;font-size:1rem}.product-info .sample-meta{font-size:.875rem;margin:.6rem 0 1.4rem}
.sample-pages{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:1rem 0}.sample-pages figure{margin:0;min-width:0}.sample-pages img{width:100%;height:auto;border:1px solid var(--line)}.sample-pages figcaption{font-size:.875rem;margin-top:.5rem;line-height:1.45}.sample-details>p{font-size:.875rem;margin:1rem 0}.product-info .content-details summary{font-size:1rem}.book-format+.product-bottom{margin-top:1.1rem}.product-bottom span{font-size:.875rem}
@media(max-width:37.5rem){.product-real-cover{padding:1.5rem}.product-real-cover img{max-width:245px}.book-facts{gap:.4rem}.sample-pages{gap:.6rem}.product-info h2{font-size:1.9rem}}
.publisher-note{display:grid;grid-template-columns:1fr 1.2fr;gap:3rem;padding-block:2.5rem 4rem;border-top:1px solid var(--line);scroll-margin-top:1rem}.publisher-note h2{margin-top:1rem;font-size:clamp(2rem,3vw,2.8rem)}.publisher-note p{font-size:1rem}.publisher-note p strong{color:var(--ink)}.footer-bottom{flex-wrap:wrap}.topic-meta a{text-decoration:underline;text-underline-offset:3px}@media(max-width:43.75rem){.publisher-note{grid-template-columns:1fr;gap:1.5rem;padding-bottom:2.5rem}}

.footer-legal{display:flex;align-items:center;flex-wrap:wrap;gap:.25rem 1.25rem;max-width:100%}.footer-legal a{display:inline-flex;align-items:center;min-height:2.75rem;text-decoration:underline;text-underline-offset:3px}
.legal-page{padding-block:3.5rem 5rem}.legal-heading{max-width:52rem;margin-bottom:3rem}.legal-heading h1{font-size:clamp(2.5rem,6vw,4.5rem);margin-top:1rem}.legal-heading>p{margin-top:1.25rem;font-size:1rem;max-width:45rem}.legal-heading .legal-date{font-size:.875rem}.legal-content{max-width:48rem}.legal-content section+section{margin-top:2.5rem;padding-top:2rem;border-top:1px solid var(--line)}.legal-content h2{font-size:clamp(1.65rem,3vw,2.2rem);line-height:1.2;margin-bottom:1rem;letter-spacing:-.025em}.legal-content p,.legal-content address{font-size:1rem;line-height:1.75;overflow-wrap:anywhere}.legal-content address{font-style:normal;color:var(--muted)}.legal-content address+p{margin-top:1rem}.legal-content a{text-decoration:underline;text-underline-offset:3px;color:var(--ink)}.legal-content strong{color:var(--ink)}
@media(max-width:36.25rem){.legal-page{padding-block:2.5rem 3rem}.legal-heading{margin-bottom:2rem}.legal-content section+section{margin-top:2rem;padding-top:1.5rem}}

/* Reflow, touch targets and keyboard access across reading sizes. */
.hero>*,.understand-grid>*,.workbook-intro>*,.publisher-note>*,.article-body,.topic-hero-inner>div,.help-options>*{min-width:0}
.breadcrumb,.topic-meta,.article-body,.product-info,.help-section,.footer-bottom{overflow-wrap:anywhere}
.article-nav a{display:flex;align-items:center;min-height:2.75rem}
.source-list a,.help-options a.help-source{display:inline-block;min-height:2.75rem;padding-block:.4rem}
.article-nav{gap:.25rem}
.article-sources p{line-height:1.75}
.product-real-cover:focus-visible{outline-offset:-5px}
@media(max-width:50rem){
  .header-inner{gap:1rem;padding-block:.5rem}
  .header-inner nav{flex-wrap:nowrap;justify-content:flex-start;max-height:calc(100vh - var(--header-height));max-height:calc(100dvh - var(--header-height));overflow-y:auto;overscroll-behavior:contain}
  .dropdown-panel{width:auto;max-width:100%}
  .site-header:not(.navigation-ready){position:static}
  .site-header:not(.navigation-ready) .header-inner{flex-wrap:wrap}
  .site-header:not(.navigation-ready) .menu-toggle{display:none}
  .site-header:not(.navigation-ready) nav{display:flex;flex-direction:column;position:static;flex:0 0 100%;max-height:none;overflow:visible;padding:.5rem 0;box-shadow:none;border:0}
  .article-nav{gap:.25rem 1rem}
}
@media(max-width:36.25rem){
  .brand>span:last-child{font-size:clamp(1.2rem,6vw,1.65rem)}
  .selftest-panel,.article-workbook{padding:clamp(.875rem,4vw,1.3rem)}
  .reflection-note{padding:1rem}
  .product-info{padding:clamp(1rem,4vw,1.5rem)}
  .book-facts span+span{border:0;padding-left:0}
  .book-facts{column-gap:.8rem}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:.75rem}
  .footer-bottom>a{margin-left:0}
}

.shop-legal-note{margin-bottom:1.5rem;font-size:.875rem;line-height:1.7}.shop-legal-note a{display:inline-flex;align-items:center;min-height:2.75rem;text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}.legal-content h3{margin:1.25rem 0 .6rem}

/* Purchase controls share the established workbook styling. */
.product-actions{display:grid;gap:.75rem}.product-actions .button{width:100%;min-height:3rem;white-space:normal;text-align:center}.product-bottom{flex-wrap:wrap}.product-bottom strong{white-space:nowrap}
.shop-download-note{margin-bottom:1.5rem}.shop-download-note>div{padding:1rem 1.25rem;background:#eff3ec;border-left:3px solid #9bb298;border-radius:0 8px 8px 0}.shop-download-note p{font-size:1rem;overflow-wrap:anywhere}.shop-download-note strong{color:var(--ink)}.shop-download-note a{text-decoration:underline;text-underline-offset:3px}

/* Keep the expanded welcome text and topic labels readable. */
.hero-copy>p+p{margin-top:1rem}.topic-card .text-link{line-height:1.5;overflow-wrap:anywhere}