.product-hero{border-bottom:1px solid var(--color-border);background:radial-gradient(circle at 80% 38%,var(--color-glow),transparent 30%),var(--grid-pattern);background-size:auto,4rem 4rem}.product-hero__grid{grid-template-columns:minmax(0,1.1fr) minmax(18rem,.65fr);align-items:center;gap:clamp(2rem,7vw,6rem);padding-block:clamp(3.5rem,8vw,7rem);display:grid}.product-breadcrumbs{color:var(--color-text-subtle);flex-wrap:wrap;gap:.45rem;margin-bottom:1.5rem;font-size:.82rem;display:flex}.product-breadcrumbs a{color:var(--color-text-muted);text-decoration:none}.product-breadcrumbs a:hover{color:var(--color-accent-strong)}.product-lead{max-width:45rem;color:var(--color-text-muted);font-size:clamp(1.05rem,2vw,1.2rem);line-height:1.7}.product-meta{flex-wrap:wrap;gap:.5rem;margin-top:1.5rem;display:flex}.product-meta span{border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text-muted);font:600 .72rem/1.3 var(--font-code);border-radius:999px;padding:.38rem .7rem}.product-price{justify-items:start;gap:.15rem;margin-top:1.75rem;display:grid}.product-price span{color:var(--color-text-subtle);font:600 .72rem/1.3 var(--font-code);letter-spacing:.08em;text-transform:uppercase}.product-price strong{letter-spacing:-.045em;font-size:clamp(2rem,4vw,3rem);line-height:1}.product-price small{color:var(--color-text-muted);margin-top:.3rem;font-size:.82rem;line-height:1.5}.product-actions{flex-wrap:wrap;gap:.75rem;margin-top:2rem;display:flex}.product-status{max-width:42rem;color:var(--color-text-subtle);margin-top:1rem;font-size:.88rem;line-height:1.6}.product-cover{border:1px solid var(--color-border-strong);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-card);margin:0;padding:1rem}.product-cover img{border:1px solid var(--color-border);border-radius:calc(var(--radius-lg) - .5rem);width:100%;height:auto;display:block}.product-cover figcaption{color:var(--color-text-subtle);text-align:center;margin-top:.7rem;font-size:.78rem}.product-section__heading{justify-content:space-between;align-items:end;gap:2rem;margin-bottom:2rem;display:flex}.product-section__heading h2,.product-learning h2,.product-author h2,.product-final-cta h2{letter-spacing:-.045em;max-width:18ch;margin:.4rem 0 0;font-size:clamp(2rem,4vw,3.5rem);line-height:1.08}.product-section__heading>p{max-width:34rem;color:var(--color-text-muted);margin:0;line-height:1.7}.product-audience-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;display:grid}.product-audience-grid article{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);padding:clamp(1.5rem,3vw,2.2rem)}.product-audience-grid article>span{color:var(--color-accent-strong);font:600 .72rem/1.4 var(--font-code);letter-spacing:.12em}.product-audience-grid h3{letter-spacing:-.035em;margin:1.2rem 0 .7rem;font-size:clamp(1.35rem,2.4vw,2rem)}.product-audience-grid p{color:var(--color-text-muted);margin:0;line-height:1.7}.product-not-for{border:1px solid var(--color-border);border-left:3px solid var(--color-accent);background:var(--color-surface-soft);margin-top:1rem;padding:1.25rem 1.4rem}.product-not-for p{color:var(--color-text-muted);margin:.35rem 0 0;line-height:1.7}.product-preview{border-block:1px solid var(--color-border);background:var(--color-surface-soft);margin-top:clamp(4rem,8vw,7rem);padding-block:clamp(4rem,7vw,6rem)}.product-preview__grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start;gap:1rem;display:grid}.product-preview figure{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg);margin:0;padding:1rem}.product-preview img{border:1px solid var(--color-border);border-radius:var(--radius-md);width:100%;height:auto;display:block}.product-preview figcaption{color:var(--color-text-subtle);margin-top:.7rem;font-size:.78rem;line-height:1.5}.product-chapters{border:1px solid var(--color-border);grid-template-columns:repeat(2,minmax(0,1fr));margin:0;padding:0;list-style:none;display:grid}.product-chapters li{border-bottom:1px solid var(--color-border);background:var(--color-surface);grid-template-columns:3rem minmax(0,1fr);gap:1rem;padding:1.4rem;display:grid}.product-chapters li:nth-last-child(-n+2){border-bottom:0}.product-chapters span{color:var(--color-accent-strong);font:600 .78rem/1.4 var(--font-code)}.product-chapters h3{margin:0 0 .4rem;font-size:1.15rem}.product-chapters p{color:var(--color-text-muted);margin:0;font-size:.92rem;line-height:1.6}.product-mid-cta{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface-soft);justify-content:space-between;align-items:center;gap:2rem;margin-top:1rem;padding:1.25rem 1.4rem;display:flex}.product-mid-cta strong{margin-bottom:.35rem;font-size:1.05rem;display:block}.product-mid-cta p{max-width:46rem;color:var(--color-text-muted);margin:0;line-height:1.6}.product-mid-cta .button{flex:none}.product-learning{border-block:1px solid var(--color-border);background:var(--color-surface);margin-top:clamp(4rem,8vw,7rem);padding-block:clamp(4rem,7vw,6rem)}.product-learning__grid{grid-template-columns:minmax(0,1fr) minmax(18rem,.8fr);align-items:center;gap:clamp(2rem,7vw,6rem);display:grid}.product-learning p:not(.eyebrow){max-width:46rem;color:var(--color-text-muted);line-height:1.7}.product-learning__steps{gap:.7rem;display:grid}.product-learning__steps span,.product-learning__steps strong{border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);padding:1rem 1.1rem}.product-learning__steps strong{border-color:var(--color-accent-strong);box-shadow:inset 3px 0 0 var(--color-accent)}.product-learning__steps i{color:var(--color-text-subtle);text-align:center;font-style:normal}.product-author{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);grid-template-columns:minmax(0,1fr) minmax(18rem,.8fr);align-items:center;gap:clamp(2rem,7vw,5rem);padding:clamp(1.5rem,4vw,3rem);display:grid}.product-author__copy p:not(.eyebrow){max-width:44rem;color:var(--color-text-muted);line-height:1.7}.product-author img{border:1px solid var(--color-border);border-radius:var(--radius-md);width:100%;height:auto;display:block}.product-faq{border-top:1px solid var(--color-border)}.product-faq details{border-bottom:1px solid var(--color-border);background:var(--color-surface)}.product-faq summary{cursor:pointer;padding:1.2rem 1.35rem;font-weight:750}.product-faq p{max-width:56rem;color:var(--color-text-muted);margin:0;padding:0 1.35rem 1.35rem;line-height:1.7}.product-final-cta{border-block:1px solid var(--color-border);background:var(--color-surface);margin-top:clamp(4rem,8vw,7rem);padding-block:clamp(3.5rem,7vw,5.5rem)}.product-final-cta .container{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:3rem;display:grid}.product-final-cta p:last-child{max-width:44rem;color:var(--color-text-muted);margin-bottom:0}@media (width<=850px){.product-hero__grid,.product-learning__grid,.product-author,.product-final-cta .container{grid-template-columns:1fr}.product-cover{max-width:30rem;margin-inline:auto}.product-audience-grid,.product-preview__grid{grid-template-columns:1fr 1fr}.product-chapters{grid-template-columns:1fr}.product-chapters li,.product-chapters li:nth-child(odd){border-right:0;border-bottom:1px solid var(--color-border)}.product-chapters li:last-child{border-bottom:0}.product-chapters li:nth-last-child(2){border-bottom:1px solid var(--color-border)}.product-mid-cta{flex-direction:column;align-items:flex-start}.product-mid-cta .button{flex:none}}@media (width<=580px){.product-hero__grid{padding-block:3rem}.product-hero__copy h1{font-size:var(--size-title-media);line-height:var(--leading-title);letter-spacing:var(--tracking-title)}.product-actions,.product-actions .button,.product-final-cta .button{width:100%}.product-section__heading{flex-direction:column;align-items:start;gap:.5rem}.product-audience-grid,.product-preview__grid{grid-template-columns:1fr}.product-preview figure{padding:.75rem}.product-chapters li{grid-template-columns:2.5rem minmax(0,1fr)}}.product-page{padding-bottom:3rem}.product-hero{background:var(--color-bg)}.product-hero__grid{grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:2.5rem;padding-block:2.5rem}.product-hero__copy h1{max-width:none;font-size:var(--size-title-media);line-height:var(--leading-title);letter-spacing:var(--tracking-title);margin:.65rem 0}.product-tagline{margin:.75rem 0;font-size:clamp(1.1rem,2vw,1.4rem);font-weight:750;line-height:1.4}.product-lead{margin:.75rem 0;font-size:1rem;line-height:1.65}.product-page .eyebrow{font:var(--type-eyebrow);letter-spacing:var(--tracking-eyebrow);text-transform:uppercase;color:var(--color-accent-strong)}.product-meta{margin-top:1rem}.product-price{margin-top:1.2rem}.product-price strong{color:var(--color-accent-strong);font-size:2.5rem}.product-actions{margin-top:1.25rem}.product-cover{justify-self:center;max-width:21rem;padding:.6rem}.product-section{margin-top:2.5rem}.product-section__heading{align-items:start;gap:1.5rem;margin-bottom:1.25rem}.product-section__heading h2,.product-learning h2,.product-author h2,.product-final-cta h2{letter-spacing:-.025em;max-width:32ch;font-size:clamp(1.5rem,2.5vw,2rem);line-height:1.25}.product-section__heading>p{max-width:30rem;font-size:.9rem}.product-audience-grid article{padding:1.1rem}.product-audience-grid svg{color:var(--color-accent-strong)}.product-audience-grid h3{margin:.75rem 0 .5rem;font-size:1.1rem;line-height:1.4}.product-audience-grid p,.product-not-for{font-size:.9rem}.product-preview{margin-top:2.5rem;padding-block:2rem}.product-preview__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;max-width:54rem;margin-inline:auto}.product-preview figure{padding:.75rem}.product-preview img{object-fit:contain;background:#fff;max-height:30rem}.product-preview figcaption a{min-height:44px;color:var(--color-accent-strong);align-content:center;display:block}.product-chapters{border:0;gap:0 1.5rem}.product-chapters li{background:0 0;grid-template-columns:2rem minmax(0,1fr);gap:.75rem;padding:1rem 0}.product-chapters li:nth-child(odd){border-right:0}.product-chapters h3{font-size:1rem;line-height:1.4}.product-chapters p{font-size:.85rem}.product-mid-cta{gap:1.25rem;font-size:.9rem}.product-learning{margin-top:2.5rem;padding-block:2rem}.product-learning__grid{grid-template-columns:1fr;gap:1.25rem}.product-learning__comparison{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem;display:grid}.product-learning__comparison article{border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1.25rem}.product-learning__comparison article:last-child{border-color:var(--color-accent-strong)}.product-learning__comparison svg{color:var(--color-accent-strong)}.product-learning__comparison h3{margin:.65rem 0;font-size:1.1rem}.product-learning__comparison ul{color:var(--color-text-muted);padding-left:1.2rem;font-size:.9rem;line-height:1.8}.product-author{flex-direction:row-reverse;justify-content:flex-end;gap:1.5rem;padding:1.5rem;display:flex}.product-author img{object-fit:cover;border-radius:50%;flex-shrink:0;width:6rem;height:6rem}.product-author__copy p{margin:.65rem 0;font-size:.95rem}.product-faq summary{min-height:44px;padding:1rem}.product-faq p{padding:0 1rem 1rem;font-size:.95rem}.product-final-cta{margin-top:2.5rem;padding-block:2rem}.product-final-cta .container{gap:1.5rem}.product-page a:focus-visible,.product-page summary:focus-visible{outline:2px solid var(--color-accent-strong);outline-offset:4px}@media (width<=850px){.product-hero__grid{grid-template-columns:1fr;gap:1.5rem}.product-cover{max-width:17rem}.product-section__heading{flex-direction:column;gap:.65rem}.product-final-cta .container{grid-template-columns:1fr}}@media (width<=580px){.product-hero__grid{padding-block:1.5rem}.product-hero__copy h1{font-size:var(--size-title-media);line-height:var(--leading-title);letter-spacing:var(--tracking-title)}.product-cover{max-width:13rem}.product-audience-grid,.product-preview__grid,.product-learning__comparison{grid-template-columns:1fr}.product-preview__grid{max-width:22rem}.product-author{align-items:flex-start;gap:1rem;padding:1rem}.product-author img{width:3.5rem;height:3.5rem}.product-chapters li{grid-template-columns:1.5rem minmax(0,1fr)}.product-actions .button{white-space:normal}}.product-preview__grid{grid-template-columns:repeat(3,minmax(0,1fr));max-width:none}.product-preview figcaption strong{color:var(--color-text);margin-top:.35rem;font-size:1rem;display:block}.product-preview figcaption>span{margin-top:.4rem;display:block}.product-sample-dialog{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);width:min(58rem,100% - 2rem);max-height:90dvh;color:var(--color-text);padding:1.25rem;overflow:auto}.product-sample-dialog::backdrop{background:#000c}.product-sample-dialog__toolbar,.product-sample-dialog__navigation{justify-content:space-between;align-items:center;gap:.75rem;display:flex}.product-sample-dialog__toolbar h2{margin:0;font-size:1.2rem}.product-sample-dialog button{border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);min-height:44px;color:var(--color-text);font:inherit;cursor:pointer;padding:.5rem .8rem}.product-sample-dialog button:disabled{opacity:.4;cursor:default}.product-sample-dialog button:focus-visible{outline:2px solid var(--color-accent-strong);outline-offset:3px}.product-sample-dialog>p{color:var(--color-text-muted);font-size:.9rem}.product-sample-dialog>img{border-radius:var(--radius-md);background:#fff;width:100%;height:auto;margin-top:1rem;display:block}@media (width<=580px){.product-preview__grid{grid-template-columns:1fr;max-width:22rem}.product-sample-dialog{width:calc(100% - 1rem);padding:.75rem}.product-sample-dialog__toolbar h2{font-size:1rem}.product-sample-dialog__navigation{gap:.4rem;font-size:.85rem}}