.book-hero[data-astro-cid-xzppfon5]{min-height:100vh;display:flex;align-items:center;background:var(--black);color:var(--white);padding:6rem var(--section-pad-x) 4rem;overflow:hidden}.book-hero-inner[data-astro-cid-xzppfon5]{display:grid;grid-template-columns:1fr 1fr;gap:clamp(3rem,6vw,6rem);align-items:center;max-width:1200px;margin:0 auto;width:100%}.book-cover-wrap[data-astro-cid-xzppfon5]{display:flex;justify-content:center;perspective:800px}.book-cover-img[data-astro-cid-xzppfon5]{max-width:600px;width:100%;height:auto;box-shadow:0 20px 60px #00000080,0 0 80px #a31f3414;transform:rotateY(-6deg) rotateX(2deg);transition:transform .5s ease,box-shadow .5s ease}.book-cover-wrap[data-astro-cid-xzppfon5]:hover .book-cover-img[data-astro-cid-xzppfon5]{transform:rotateY(0) rotateX(0) scale(1.03);box-shadow:0 30px 80px #0009,0 0 100px #a31f341f}.book-hero-text[data-astro-cid-xzppfon5]{padding-right:2rem}.book-hero-title[data-astro-cid-xzppfon5]{font-size:clamp(3.5rem,7vw,6rem);margin-bottom:.75rem;line-height:.95}.book-hero-subtitle[data-astro-cid-xzppfon5]{font-family:var(--font-heading);font-size:clamp(1.8rem,4vw,3rem);font-weight:400;text-transform:uppercase;color:#4a7cbf;margin-top:-.25rem;margin-bottom:1rem;letter-spacing:.05em}.book-hero-author[data-astro-cid-xzppfon5]{font-family:var(--font-body);font-size:1.2rem;font-weight:500;margin-bottom:.25rem}.book-hero-publisher[data-astro-cid-xzppfon5]{font-size:.9rem;color:var(--gray-400)}.book-divider[data-astro-cid-xzppfon5]{border:none;border-top:1px solid var(--gray-800);margin:1rem 0}.book-hero-desc[data-astro-cid-xzppfon5]{font-size:1rem;line-height:1.5;color:var(--gray-400);margin-bottom:.6rem;max-width:52ch}.book-hero-desc[data-astro-cid-xzppfon5]:last-of-type{margin-bottom:1rem}.book-cta[data-astro-cid-xzppfon5]{display:inline-block;font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;border:1px solid var(--white);padding:.9rem 2rem;color:var(--white);transition:background-color .2s,color .2s}.book-cta[data-astro-cid-xzppfon5]:hover{background:var(--white);color:var(--black);opacity:1}.related-description[data-astro-cid-xzppfon5]{font-size:1.05rem;line-height:1.8;color:var(--gray-600);max-width:60ch;margin-bottom:1.5rem}@media(max-width:768px){.book-hero-inner[data-astro-cid-xzppfon5]{grid-template-columns:1fr;text-align:center}.book-cover-img[data-astro-cid-xzppfon5]{max-width:260px;transform:none}.book-hero-text[data-astro-cid-xzppfon5]{padding:0}}.promo-section[data-astro-cid-xzppfon5]{background:var(--black);color:var(--white);padding:5rem var(--section-pad-x) 6rem;border-top:1px solid var(--gray-800)}.promo-inner[data-astro-cid-xzppfon5]{max-width:960px;margin:0 auto;text-align:center}.promo-heading[data-astro-cid-xzppfon5]{font-family:var(--font-display);font-size:clamp(2rem,4vw,3.2rem);line-height:1.02;text-transform:uppercase;margin:.75rem 0 2.5rem}.promo-embed[data-astro-cid-xzppfon5]{position:relative;width:100%;aspect-ratio:16 / 9;box-shadow:0 20px 60px #00000080}.promo-embed[data-astro-cid-xzppfon5] iframe[data-astro-cid-xzppfon5]{position:absolute;inset:0;width:100%;height:100%;border:0}.chapters-section[data-astro-cid-xzppfon5]{background:var(--pure-white);color:var(--black);padding:6rem 0 2rem}.chapters-intro[data-astro-cid-xzppfon5]{max-width:900px;margin:0 auto 3rem;padding-left:var(--section-pad-x);padding-right:var(--section-pad-x)}.chapters-heading[data-astro-cid-xzppfon5]{font-family:var(--font-display);font-size:clamp(2rem,4vw,3.2rem);line-height:1.02;text-transform:uppercase;margin-bottom:1.25rem}.chapters-lede[data-astro-cid-xzppfon5]{color:var(--gray-600);font-size:1.05rem;line-height:1.65;max-width:60ch}.chapters[data-astro-cid-xzppfon5]{max-width:760px;margin:0 auto;padding:0 var(--section-pad-x);list-style:none;counter-reset:chapter}.chapter[data-astro-cid-xzppfon5]{padding:4.5rem 0;border-top:1px solid var(--gray-200);opacity:0;transform:translateY(32px);transition:opacity .7s ease,transform .7s ease}.chapter[data-astro-cid-xzppfon5]:last-child{border-bottom:1px solid var(--gray-200)}.chapter[data-astro-cid-xzppfon5].is-visible{opacity:1;transform:none}.chapter-num[data-astro-cid-xzppfon5]{display:inline-block;font-family:var(--font-body);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.2em;color:var(--accent);margin-bottom:1rem}.chapter-title[data-astro-cid-xzppfon5]{font-family:var(--font-display);font-size:clamp(1.8rem,3.5vw,2.6rem);line-height:1.05;text-transform:uppercase;margin-bottom:1.25rem}.chapter-body[data-astro-cid-xzppfon5]{font-size:1.1rem;line-height:1.65;color:var(--gray-800)}@media(prefers-reduced-motion:reduce){.chapter[data-astro-cid-xzppfon5]{opacity:1;transform:none;transition:none}}