.bk-shell{max-width:1180px;margin:0 auto;padding:0 1.5rem}.bk-hero{padding:clamp(2.75rem,5.5vw,4.25rem) 0 clamp(2.75rem,5.5vw,4rem)}.bk-kicker{letter-spacing:.12em;text-transform:uppercase;color:var(--teal);font-size:.8rem;font-weight:700}.bk h1{letter-spacing:-.03em;margin-top:.7rem;font-size:clamp(2rem,4.6vw,3.05rem);line-height:1.08}.bk h1 span{color:var(--teal)}.bk-lead{color:#ffffffbd;max-width:52ch;margin-top:1.1rem;font-size:clamp(1.02rem,1.35vw,1.12rem);line-height:1.7}.bk-main{padding:clamp(2.5rem,5vw,4rem) 0 clamp(2.5rem,5vw,3.5rem)}.bk-grid{grid-template-columns:360px minmax(0,1fr);align-items:start;gap:clamp(2rem,4vw,3.5rem);display:grid}.bk-cover img{border:1px solid var(--border);border-radius:12px;width:100%;height:auto;display:block;box-shadow:0 18px 40px #0a0a0a1f}.bk-quote{border-left:3px solid var(--teal);letter-spacing:-.01em;margin:0;padding-left:clamp(1rem,2vw,1.4rem);font-size:clamp(1.05rem,1.6vw,1.22rem);line-height:1.6}.bk-sections{flex-wrap:wrap;gap:.5rem;margin-top:1.6rem;list-style:none;display:flex}.bk-sections li{color:#374151;border:1px solid var(--border);background:#f6f9f8;border-radius:999px;padding:.4rem .75rem;font-size:.85rem;font-weight:600}.bk-dl{gap:.55rem;margin-top:1.75rem}.bk-dl-icon{flex-shrink:0;width:20px;height:20px}.bk-meta{color:var(--gray);margin-top:.7rem;font-size:.875rem}.bk-by{border:1px solid var(--border);color:#374151;background:#f6f9f8;border-radius:12px;margin-top:2rem;padding:1.25rem 1.4rem;font-size:.925rem;line-height:1.7}.bk-by-label{letter-spacing:.1em;text-transform:uppercase;color:var(--gray);font-size:.78rem;font-weight:700}.bk-by-name{color:var(--black);margin-top:.3rem;font-size:1.05rem;font-weight:700}.bk-by a{color:var(--teal-dark);text-underline-offset:2px;text-decoration:underline}.bk-by a:hover{color:var(--black)}.bk-credit{color:var(--gray);margin-top:1.1rem;font-size:.8rem;line-height:1.6}.bk-cta{padding:0 0 clamp(3rem,6vw,4.5rem)}.bk-cta-inner{border:1px solid var(--border);background:#f6f9f8;border-radius:16px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1.25rem 2rem;padding:clamp(1.5rem,3vw,2rem) clamp(1.5rem,3vw,2.25rem);display:flex}.bk-cta-inner p{letter-spacing:-.01em;font-size:clamp(1rem,1.5vw,1.12rem);font-weight:600}@media (max-width:860px){.bk-grid{grid-template-columns:min(260px,60vw);justify-content:center;gap:2rem}.bk-cta-inner{flex-direction:column;align-items:flex-start}.bk-cta-inner .btn{width:100%}}