.ks-book-detail-page{background:#08090a}
.ks-book-detail-hero{
    position:relative;overflow:hidden;padding:82px 0;border-bottom:1px solid rgba(214,168,63,.10);
    background:
      radial-gradient(circle at 72% 38%,rgba(214,168,63,.09),transparent 30rem),
      radial-gradient(circle at 91% 76%,rgba(255,42,36,.038),transparent 18rem),
      #08090a
}
.ks-book-detail-hero__grid{
    position:absolute;inset:0;opacity:.30;pointer-events:none;
    background-image:linear-gradient(rgba(214,168,63,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(214,168,63,.028) 1px,transparent 1px);
    background-size:42px 42px
}
.ks-book-detail-hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(250px,360px) 1fr;gap:72px;align-items:center}
.ks-book-detail-cover{
    position:relative;aspect-ratio:2/3;overflow:hidden;border-radius:24px;border:1px solid rgba(242,204,107,.25);
    background:#111;box-shadow:0 34px 100px rgba(0,0,0,.48),0 0 44px rgba(214,168,63,.08)
}
.ks-book-detail-cover img{width:100%;height:100%;object-fit:cover}
.ks-book-detail-cover__placeholder{
    width:100%;height:100%;display:grid;place-content:center;text-align:center;
    background:radial-gradient(circle at 50% 35%,rgba(214,168,63,.13),transparent 13rem),#0d0e10
}
.ks-book-detail-cover__placeholder span{color:#7f6d43;font-size:12px;font-weight:850;letter-spacing:.24em}
.ks-book-detail-cover__placeholder strong{margin-top:6px;color:var(--ks-gold-bright);font-size:32px;letter-spacing:.08em}
.ks-book-detail-category{
    display:inline-flex;padding:7px 10px;border:1px solid rgba(214,168,63,.22);border-radius:999px;
    color:var(--ks-gold-bright);font-size:10px;font-weight:850;letter-spacing:.13em;text-transform:uppercase
}
.ks-book-detail-hero h1{max-width:900px;margin:18px 0 0;color:var(--ks-ivory);font-size:clamp(50px,6vw,90px);line-height:.94;letter-spacing:-.055em}
.ks-book-detail-author{margin:18px 0 0;color:#888279;font-size:15px}.ks-book-detail-author strong{color:#c9c1b7}
.ks-book-detail-deck{max-width:800px;margin:28px 0 0;color:#9f988f;font-size:18px;line-height:1.8}
.ks-book-detail-actions{display:flex;flex-wrap:wrap;gap:11px;margin-top:32px}
.ks-book-detail-path{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:38px;color:#69645e;font-size:10px;font-weight:850;letter-spacing:.11em}
.ks-book-detail-path b{color:rgba(214,168,63,.52)}
.ks-book-detail-layout{padding:80px 0 100px;background:linear-gradient(180deg,#0a0b0c,#08090a)}
.ks-book-detail-layout__inner{display:grid;grid-template-columns:230px minmax(0,850px);gap:70px;justify-content:center;align-items:start}
.ks-book-toc{position:sticky;top:calc(var(--ks-header-height) + 28px)}
.ks-book-toc__box{
    display:grid;gap:4px;padding:20px;border:1px solid rgba(214,168,63,.13);border-radius:18px;
    background:linear-gradient(180deg,rgba(255,255,255,.022),rgba(255,255,255,.006))
}
.ks-book-toc__label{margin-bottom:7px;color:var(--ks-gold-bright);font-size:10px;font-weight:850;letter-spacing:.13em;text-transform:uppercase}
.ks-book-toc a{padding:8px 9px;border-radius:8px;color:#817b73;font-size:12px;transition:color .14s ease,background .14s ease}
.ks-book-toc a:hover,.ks-book-toc a.is-active{color:var(--ks-ivory);background:rgba(214,168,63,.06)}
.ks-book-article{min-width:0}
.ks-book-section{position:relative;padding:0 0 58px;margin:0 0 58px;border-bottom:1px solid rgba(214,168,63,.10);scroll-margin-top:calc(var(--ks-header-height) + 34px)}
.ks-book-section__number{color:var(--ks-red);font-size:10px;font-weight:850;letter-spacing:.14em}
.ks-book-section h2{margin:8px 0 24px;color:var(--ks-ivory);font-size:clamp(31px,4vw,48px);line-height:1.05;letter-spacing:-.035em}
.ks-book-prose{color:#b4ada3;font-size:17px;line-height:1.92}
.ks-book-prose p{margin:0 0 20px}.ks-book-prose strong,.ks-book-prose b{color:#e7dfd4}.ks-book-prose h3,.ks-book-prose h4{color:var(--ks-ivory);line-height:1.25}
.ks-book-prose ul,.ks-book-prose ol{padding-left:24px}.ks-book-prose li{margin:8px 0}
.ks-book-prose blockquote{margin:28px 0;padding:20px 24px;border-left:2px solid var(--ks-gold);background:rgba(214,168,63,.045);color:#cdc5ba}
.ks-book-prose a{color:var(--ks-gold-bright);text-decoration:underline;text-underline-offset:3px}
.ks-book-video-cta{
    display:flex;align-items:center;justify-content:space-between;gap:32px;padding:34px;border:1px solid rgba(214,168,63,.20);
    border-radius:22px;background:radial-gradient(circle at 90% 50%,rgba(255,42,36,.04),transparent 18rem),rgba(255,255,255,.015)
}
.ks-book-video-cta h2{margin:10px 0 0;color:var(--ks-ivory);font-size:30px;letter-spacing:-.025em}
.ks-book-video-cta p{max-width:600px;margin:10px 0 0;color:#8e887f}
.ks-book-not-found{min-height:68vh;display:grid;align-items:center;text-align:center;padding:80px 0}
.ks-book-not-found h1{margin:14px 0 0;color:var(--ks-ivory);font-size:clamp(42px,7vw,78px);letter-spacing:-.05em}
.ks-book-not-found p{margin:16px 0 26px;color:#8d877e}
@media(max-width:950px){.ks-book-detail-hero__inner{grid-template-columns:240px 1fr;gap:42px}.ks-book-detail-layout__inner{grid-template-columns:1fr}.ks-book-toc{position:static}.ks-book-toc__box{display:flex;overflow-x:auto;gap:6px}.ks-book-toc__label{display:none}.ks-book-toc a{flex:0 0 auto}}
@media(max-width:700px){.ks-book-detail-hero{padding:58px 0}.ks-book-detail-hero__inner{grid-template-columns:1fr}.ks-book-detail-cover{width:min(72vw,320px);margin:auto}.ks-book-detail-hero h1{font-size:clamp(46px,14vw,70px)}.ks-book-detail-layout{padding:58px 0 74px}.ks-book-video-cta{align-items:flex-start;flex-direction:column;padding:26px}}