/* Book presentation follows the existing Wissensfunke typography and palette. */
.book-teaser{background:#e8eff7;border-top:1px solid #172c4120}
.book-teaser-grid{display:grid;grid-template-columns:1.25fr 1fr;align-items:center;gap:60px}
.book-teaser .book-figure{margin:0}
.book-teaser .eyebrow{margin-bottom:22px}
.book-figure{margin:38px 0}
.book-figure img{display:block;width:100%;height:auto;max-height:none;object-fit:contain;border-radius:9px}
.book-figure figcaption{font-size:13px;line-height:1.55;color:#526578;margin-top:12px;max-width:760px}
.book-breadcrumb{padding-top:32px;font-size:14px;color:#1969bd}
.book-breadcrumb a:hover{text-decoration:underline}
.book-article{padding:55px 0 20px;max-width:1000px}
.book-heading{max-width:850px}
.book-heading h1{font-size:clamp(37px,4.6vw,62px);font-weight:550;line-height:1.12;letter-spacing:-.04em;margin:0 0 24px}
.book-byline{font-size:14px;border-left:3px solid #2677f1;padding-left:12px}
.book-page .book-subtitle{font-size:21px;line-height:1.65;color:#51677e;margin:25px 0 35px}
.book-article>p,.book-section>p{max-width:760px;font-size:18px;line-height:1.8;margin:0 auto 24px}
.book-section{margin:65px auto 0}
.book-section h2{max-width:760px;margin:0 auto 28px;font-size:clamp(28px,3vw,38px);line-height:1.2;font-weight:550;letter-spacing:-.025em}
.book-portrait{width:min(100%,640px);margin:38px auto}
.book-experiments,.book-characters{list-style:none;padding:0;margin:30px auto;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;max-width:850px}
.book-experiments li,.book-characters li{padding:24px;background:#e8eff7;border:1px solid #d4e1ee;border-radius:6px;color:#526578;line-height:1.75;overflow-wrap:anywhere}
.book-experiments strong,.book-characters strong{display:block;color:#172c41;margin-bottom:8px;font-size:17px}
.book-page .book-status{border-left:3px solid #2677f1;background:#e8eff7;padding:16px 20px;font-size:15px;color:#214e7c}
.book-original-cover{max-width:340px;margin:48px auto 28px}
.book-page .book-credit{font-size:12px;line-height:1.6;border-top:1px solid #172c4120;padding-top:20px}
.book-return{padding:10px 0 65px;max-width:1000px}
@media(max-width:900px){.book-teaser-grid{gap:30px}}
@media(max-width:620px){.book-teaser-grid{grid-template-columns:1fr;gap:28px}.book-article{padding-top:35px}.book-section{margin-top:44px}.book-article>p,.book-section>p{font-size:17px}.book-page .book-subtitle{font-size:19px}.book-experiments,.book-characters{grid-template-columns:1fr}.book-experiments li,.book-characters li{padding:20px}.book-figure{margin:28px 0}.book-portrait,.book-original-cover{margin:28px auto}.book-heading h1{overflow-wrap:anywhere}}