/* Seller landing only; shared navigation, footer and design tokens are retained. */
body.bk-presentation {
  margin: 0;
  background: var(--bk-bg);
  color: var(--bk-ink);
  font-family: var(--bk-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.bk-presentation *, .bk-presentation *::before, .bk-presentation *::after { box-sizing: border-box; }
body.bk-presentation .bk-public-nav-spacer { display: none; }
.bk-presentation main a { color: var(--bk-green); text-decoration: none; }
.bk-presentation main a:hover { text-decoration: underline; text-underline-offset: 4px; }
.bk-presentation main :is(a, summary):focus-visible { outline: 3px solid var(--bk-gold-deep); outline-offset: 5px; }
.bk-presentation main section[id] { scroll-margin-top: 96px; }
.bk-pres-section { max-width: 1240px; margin: 0 auto; padding: 88px 48px; }
.bk-pres-eyebrow { margin: 0 0 18px; font-size: 10px; line-height: 1.5; font-weight: 700; letter-spacing: .17em; text-transform: uppercase; color: var(--bk-green); }
.bk-pres-title { margin: 0 0 24px; font-family: var(--bk-serif); font-weight: 600; font-size: clamp(2rem, 3.6vw, 3.15rem); letter-spacing: -.035em; line-height: 1.15; }
.bk-pres-subtitle { max-width: 590px; margin: 0; color: var(--bk-ink-soft); font-size: 15px; line-height: 1.8; }
.bk-section-intro { display: grid; grid-template-columns: 1.25fr .8fr; gap: 64px; align-items: end; margin-bottom: 42px; }
.bk-section-intro .bk-pres-title { margin-bottom: 0; }
.bk-section-intro .bk-pres-subtitle { padding-bottom: 4px; }
.bk-step-index { font-family: 'DM Mono', monospace; font-size: 11px; font-weight: 500; letter-spacing: .06em; color: var(--bk-green); }
.bk-text-link { display: inline-flex; gap: 14px; align-items: center; min-height: 44px; font-size: 13px; font-weight: 600; }
.bk-text-link span[aria-hidden] { font-size: 19px; }
.bk-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }

body.bk-presentation .bk-hero {
  position: relative; isolation: isolate; height: auto; min-height: min(820px, 100svh); max-height: none;
  display: flex; flex-direction: row; justify-content: flex-start; align-items: center; padding: 154px max(48px, calc((100vw - 1144px) / 2)) 108px;
  background: var(--bk-ink); color: var(--bk-surface);
}
.bk-pres-hero-photo { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: center; }
body.bk-presentation .bk-hero::after { content: ''; position: absolute; inset: 0; z-index: -1; pointer-events: none; background: linear-gradient(90deg, #101b15e8, #101b1596 42%, #101b1514 78%), linear-gradient(180deg, #101b1566, transparent 30%, #101b1555); }
body.bk-presentation .bk-hero__inner { width: 100%; max-width: 650px; margin: 0; display: block; }
.bk-hero__eyebrow { margin: 0 0 28px; font-size: 10px; letter-spacing: .16em; text-transform: uppercase; font-weight: 600; color: var(--bk-surface); }
body.bk-presentation .bk-hero h1 { max-width: 650px; margin: 0 0 24px; font-family: var(--bk-serif); font-weight: 600; font-size: clamp(2.8rem, 5.1vw, 4.6rem); line-height: 1.06; letter-spacing: -.035em; color: var(--bk-surface); }
.bk-hero h1 em { font-style: normal; color: var(--bk-gold); }
.bk-hero__lede { max-width: 485px; margin: 0 0 28px; color: var(--bk-surface); font-size: 15px; line-height: 1.8; }
.bk-hero__ctas, .bk-final-cta__ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.bk-presentation main :is(.bk-btn-primary, .bk-btn-secondary) { display: inline-flex; align-items: center; justify-content: center; gap: 16px; min-height: 50px; padding: 14px 20px; border-radius: 5px; font-size: 13px; font-weight: 600; line-height: 1.5; text-decoration: none; transition: background .15s, color .15s; }
.bk-presentation main .bk-btn-primary { background: var(--bk-surface); color: var(--bk-green); border: 1px solid var(--bk-surface); }
.bk-presentation main .bk-btn-primary:hover { background: var(--bk-gold); border-color: var(--bk-gold); }
.bk-presentation main .bk-btn-secondary { background: transparent; color: var(--bk-surface); border: 1px solid #fffdf888; }
.bk-presentation main .bk-btn-secondary:hover { background: #fffdf814; }
.bk-hero__reassurance { max-width: 500px; margin: 18px 0 0; color: var(--bk-surface); font-size: 11px; line-height: 1.8; }
.bk-presentation main .bk-hero__example { display: inline-flex; gap: 14px; align-items: center; min-height: 44px; margin-top: 12px; color: var(--bk-surface); font-size: 12px; }
.bk-hero__example span { font-size: 18px; }

/* Full product presentation, using the same gallery as the actual listing. */
.bk-example { max-width: 1720px; }
.bk-product-example { position: relative; margin: 0 -24px; padding: 32px 24px; background: radial-gradient(ellipse at 41% 24%,var(--bk-showroom-light),var(--bk-showroom-mid) 41%,var(--bk-showroom-deep) 100%); color: var(--bk-ink); }
.bk-product-example.bk-showroom-page::before { display: none; }
.bk-presentation .bk-product-example .ssr-product { display: grid; grid-template-columns: minmax(0,1fr) minmax(300px,31%); gap: 54px; padding: 0; margin: 0; max-width: none; align-items: start; }
.bk-product-example .ssr-product__images { position: relative; top: auto; }
.bk-product-example .ssr-product__info { position: static; padding-top: 0; }
.bk-product-example .bk-gal { height: clamp(520px,43vw,720px); }
.bk-product-example .ssr-title { margin: 0 0 24px; font-size: clamp(32px,3vw,48px); }
.bk-product-example .ssr-price { margin-top: 0; }
.bk-product-example .ssr-meta { margin: 24px 0 0; }
.bk-product-example .ssr-desc { margin: 24px 0; }
.bk-example-fees { font-size: 12px; color: var(--bk-ink-soft); }
.bk-example-fees summary { cursor: pointer; list-style: none; }
.bk-example-fees p { margin-top: 12px; font-size: 12px; line-height: 1.8; }
.bk-example-purchase { display: flex; gap: 12px; }
.bk-product-example .bk-example-purchase button { flex: 1 1 0; min-width: 0; font: inherit; font-size: 13px; }
.bk-product-example .bk-example-purchase .bk-purchase-cta--secondary { opacity: 1; background: transparent; color: var(--bk-ink); border: 1px solid var(--bk-ink); }
.bk-example-demo-note { margin: 16px 0 8px; color: var(--bk-ink-soft); font-size: 10px; line-height: 1.7; }
.bk-example-origin { margin-top: 24px; border-bottom: 1px solid var(--bk-border); padding-bottom: 18px; }
.bk-example-origin summary { cursor: pointer; color: var(--bk-green); font-size: 13px; }
.bk-example-origin figure { display: flex; gap: 28px; align-items: center; margin: 24px 0 0; }
.bk-example-origin img { width: 170px; max-height: 280px; object-fit: contain; }
.bk-example-origin figcaption { font-size: 13px; }
@media(max-width:1000px) {
  .bk-presentation .bk-product-example .ssr-product { gap: 28px; grid-template-columns: minmax(0,1fr) 310px; }
  .bk-product-example .ssr-title { font-size: 33px; }
}
@media(max-width:760px) {
  .bk-product-example { margin: 0 -12px; padding: 24px 16px; }
  .bk-presentation .bk-product-example .ssr-product { display: flex; flex-direction: column; gap: 24px; padding: 0; }
  .bk-product-example .ssr-product__images { width: 100%; }
  .bk-product-example .bk-gal { height: 400px; }
  .bk-product-example.bk-showroom-page .ssr-product__info>.ssr-title { position: static; clip-path: none; width: auto; height: auto; margin: 0 0 24px; white-space: normal; overflow: visible; font-size: 33px; }
  .bk-product-example.bk-showroom-page .ssr-product__info .ssr-price { display: flex; }
  .bk-example-origin figure { flex-direction: column; align-items: flex-start; }
}

/* Previous image comparison styles retained for the original-photo disclosure. */
.bk-example__comparison { display: grid; grid-template-columns: .72fr 1.8fr; gap: 28px; align-items: start; }
.bk-example__original { margin: 0; }
.bk-example__original figcaption, .bk-example__result-label { display: flex; align-items: center; gap: 14px; min-height: 54px; margin-bottom: 18px; font-size: 13px; font-weight: 600; }
.bk-example__original figcaption .bk-step-index, .bk-example__result-label .bk-step-index { align-self: start; padding-top: 3px; }
.bk-example__original figcaption small, .bk-example__result-label small { display: block; margin-top: 3px; font-size: 11px; font-weight: 400; color: var(--bk-ink-soft); }
.bk-example__original-frame { height: 338px; overflow: hidden; background: var(--bk-img-bg); }
.bk-example__original-frame img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center 50%; }
.bk-example__original-frame--chair img { object-fit: cover; object-position: center 61%; }
.bk-example__input { display: flex; justify-content: space-between; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--bk-border); font-size: 12px; }
.bk-example__input strong { color: var(--bk-green); font-size: 17px; line-height: 1.3; }
.bk-example__caption { margin: 12px 0 0; color: var(--bk-ink-soft); font-size: 11px; line-height: 1.7; }
.bk-example__product { display: grid; grid-template-columns: .9fr 1fr; border: 1px solid var(--bk-border); background: var(--bk-surface); }
.bk-example__showcase { display: flex; align-items: center; position: relative; min-width: 0; min-height: 460px; padding: 45px 16px 44px; background: var(--bk-img-bg); }
.bk-example__showcase img { display: block; width: 100%; height: auto; max-height: 385px; object-fit: contain; }
.bk-example__showcase--chair { overflow: hidden; }
.bk-example__showcase--chair img { position: absolute; width: auto; max-width: none; height: 175%; max-height: none; left: 50%; top: 50%; transform: translate(-50%, -52.8%); }
.bk-example__image-label { position: absolute; top: 15px; left: 15px; padding: 5px 8px; font-size: 9px; background: var(--bk-surface); color: var(--bk-green); }
.bk-example__image-note { position: absolute; left: 12px; right: 12px; bottom: 15px; text-align: center; font-size: 9px; color: var(--bk-ink-soft); }
.bk-example__image-label, .bk-example__image-note { z-index: 1; }
.bk-example__product-content { padding: 28px 23px 20px; min-width: 0; }
.bk-example__product-content .bk-pres-eyebrow { margin-bottom: 14px; font-size: 9px; }
.bk-example__product-content h3 { margin: 0 0 16px; font-family: var(--bk-serif); font-weight: 600; font-size: clamp(1.5rem, 2.4vw, 2rem); line-height: 1.17; letter-spacing: -.025em; }
.bk-example__description { margin: 0 0 18px; color: var(--bk-ink-soft); font-size: 12px; line-height: 1.8; }
.bk-example__facts { margin: 0; font-size: 10px; }
.bk-example__facts div { display: flex; justify-content: space-between; gap: 10px; padding: 7px 0; border-top: 1px solid var(--bk-border-hair); }
.bk-example__facts dt { color: var(--bk-ink-soft); }
.bk-example__facts dd { margin: 0; text-align: right; }
.bk-example__price { margin: 16px 0; padding-top: 12px; border-top: 1px solid var(--bk-border); }
.bk-example__price strong { display: block; font-family: var(--bk-serif); font-size: 30px; line-height: 1.2; font-weight: 600; }
.bk-example__price span { display: block; margin-top: 7px; color: var(--bk-ink-soft); font-size: 9px; line-height: 1.6; }
.bk-example__delivery { display: flex; gap: 10px; padding: 12px; margin-top: 14px; background: var(--bk-green-pale); color: var(--bk-green); }
.bk-example__delivery svg { width: 23px; height: 23px; flex-shrink: 0; }
.bk-example__delivery strong { display: block; font-size: 11px; }
.bk-example__delivery span { display: block; margin-top: 3px; font-size: 10px; line-height: 1.6; }
.bk-example__product-content .bk-text-link { margin-top: 6px; font-size: 11px; }
.bk-example__footnote { margin: 18px 0 0; max-width: 880px; color: var(--bk-ink-soft); font-size: 10px; line-height: 1.7; }
.bk-example__validation { display: flex; align-items: center; gap: 18px; border-top: 1px solid var(--bk-border); margin-top: 30px; padding-top: 25px; }
.bk-example__check { display: grid; place-items: center; flex-shrink: 0; width: 34px; height: 34px; border-radius: 50%; background: var(--bk-green-pale); color: var(--bk-green); font-size: 16px; }
.bk-example__validation p { margin: 0; color: var(--bk-ink-soft); font-size: 12px; }
.bk-example__validation strong { color: var(--bk-green); }

.bk-delivery { background: var(--bk-green); color: var(--bk-surface); }
.bk-delivery .bk-pres-eyebrow { color: var(--bk-gold); }
.bk-delivery .bk-pres-title { color: var(--bk-surface); }
.bk-delivery .bk-pres-subtitle { color: var(--bk-surface); }
.bk-delivery__steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; }
.bk-delivery__steps li { padding-top: 22px; border-top: 1px solid #fffdf84d; }
.bk-delivery__steps .bk-step-index { color: var(--bk-gold); }
.bk-delivery h3 { color: var(--bk-surface); font-family: var(--bk-serif); font-size: 23px; line-height: 1.3; font-weight: 500; margin: 18px 0 12px; }
.bk-delivery__steps p { margin: 0; font-size: 13px; line-height: 1.8; color: var(--bk-surface); }
.bk-delivery__bottom { display: flex; justify-content: space-between; gap: 40px; align-items: center; border-top: 1px solid #fffdf84d; padding-top: 20px; margin-top: 34px; }
.bk-delivery__bottom p { margin: 0; max-width: 650px; font-size: 11px; color: var(--bk-surface); }
.bk-presentation main .bk-delivery .bk-text-link { color: var(--bk-surface); white-space: nowrap; }
.bk-process { display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; margin-top: 38px; }
.bk-process article { padding-top: 24px; border-top: 1px solid var(--bk-border); }
.bk-process h3 { font-family: var(--bk-serif); font-size: 23px; font-weight: 500; line-height: 1.3; margin: 17px 0 12px; }
.bk-process p { margin: 0; color: var(--bk-ink-soft); font-size: 13px; line-height: 1.8; }
.bk-diffusion { display: grid; grid-template-columns: 1fr 1.35fr; gap: 60px; align-items: center; padding: 32px; margin-top: 45px; background: var(--bk-surface); border: 1px solid var(--bk-border); }
.bk-diffusion .bk-pres-eyebrow { font-size: 9px; margin-bottom: 12px; }
.bk-diffusion h3 { margin: 0; font-family: var(--bk-serif); font-size: 25px; line-height: 1.25; font-weight: 500; }
.bk-diffusion p { font-size: 12px; line-height: 1.8; margin: 0; }
.bk-diffusion .bk-diffusion__note { color: var(--bk-ink-soft); font-size: 10px; margin-top: 10px; }

.bk-section--tinted { background: var(--bk-surface); }
.bk-pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 32px; }
.bk-pricing__card { padding: 28px 24px; background: var(--bk-bg); border: 1px solid var(--bk-border); }
.bk-pricing__value { font-family: var(--bk-serif); font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 600; color: var(--bk-green); margin-bottom: 14px; }
.bk-pricing__title { font-size: 14px; font-weight: 600; margin: 0 0 10px; }
.bk-pricing__desc { font-size: 12px; color: var(--bk-ink-soft); line-height: 1.8; margin: 0; }
.bk-pricing-note { margin: 24px 0 0; font-size: 11px; line-height: 1.9; color: var(--bk-ink-soft); }
.bk-pricing-note strong { color: var(--bk-ink); }
.bk-highlight-box { padding: 18px 20px; border-left: 2px solid var(--bk-green); background: var(--bk-green-pale); font-size: 12px; line-height: 1.8; }
.bk-workspace { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; }
.bk-workspace__details { display: grid; gap: 24px; }
.bk-workspace__details article { padding-top: 20px; border-top: 1px solid var(--bk-border); }
.bk-workspace__details h3 { font-family: var(--bk-serif); font-weight: 500; font-size: 21px; margin: 0 0 10px; }
.bk-workspace__details p { font-size: 12px; line-height: 1.8; color: var(--bk-ink-soft); margin: 0; }
.bk-faq-list { max-width: 820px; margin: 0 auto; }
.bk-faq-item { border-bottom: 1px solid var(--bk-border); padding: 20px 0; }
.bk-faq-item:first-child { border-top: 1px solid var(--bk-border); }
.bk-faq-item summary { position: relative; list-style: none; cursor: pointer; padding-right: 30px; font-family: var(--bk-serif); font-size: 18px; font-weight: 500; line-height: 1.4; }
.bk-faq-item summary::-webkit-details-marker { display: none; }
.bk-faq-item summary::after { content: '+'; position: absolute; right: 3px; top: -2px; color: var(--bk-green); font-family: var(--bk-sans); font-size: 22px; }
.bk-faq-item[open] summary::after { content: '−'; }
.bk-faq-item p { margin: 14px 0 0; max-width: 750px; color: var(--bk-ink-soft); font-size: 13px; line-height: 1.9; }
.bk-final-cta { background: var(--bk-ink); padding: 76px 32px; color: var(--bk-surface); text-align: center; }
.bk-final-cta__inner { max-width: 800px; margin: 0 auto; }
.bk-final-cta .bk-pres-eyebrow { color: var(--bk-gold); }
.bk-final-cta h2 { font-family: var(--bk-serif); font-weight: 500; line-height: 1.08; font-size: clamp(2.5rem, 4.5vw, 4rem); color: var(--bk-surface); margin: 0 0 24px; letter-spacing: -.03em; }
.bk-final-cta__lede { max-width: 570px; margin: 0 auto 28px; font-size: 14px; line-height: 1.8; }
.bk-final-cta__ctas { justify-content: center; }
.bk-final-cta__note { font-size: 10px; line-height: 1.9; margin: 24px 0 0; }
.bk-final-cta__legal { margin: 14px 0 0; font-size: 11px; }
.bk-presentation main .bk-final-cta__legal a { color: var(--bk-surface); text-decoration: underline; text-underline-offset: 3px; }
.bk-pres-signature { margin: 0; padding: 24px; text-align: center; color: var(--bk-ink-soft); font-size: 12px; }
.bk-pres-signature a { color: var(--bk-green); }

/* Keep the established immersive header over the hero. */
body.bk-presentation #site-nav.navbar--transparent:not(.bk-nav--menu-open):not(.bk-nav--search-open) { background: transparent !important; border-color: transparent !important; box-shadow: none !important; color: var(--bk-surface) !important; backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }
body.bk-presentation #site-nav.navbar--transparent:not(.bk-nav--menu-open):not(.bk-nav--search-open) :is(.bk-nav__brand, .bk-wordmark__k, .bk-nav__drop-trigger, .bk-nav__icon, .bk-nav__icon svg, .bk-nav__burger) { color: var(--bk-surface) !important; text-shadow: 0 1px 8px #0005; }
body.bk-presentation #site-nav.navbar--transparent:not(.bk-nav--menu-open):not(.bk-nav--search-open) .bk-nav__burger span { background: var(--bk-surface) !important; }

@media (max-width: 1000px) {
  .bk-pres-section { padding: 64px 28px; }
  .bk-section-intro { gap: 32px; }
  .bk-example__comparison { grid-template-columns: .65fr 1.6fr; gap: 20px; }
  .bk-example__product { grid-template-columns: 1fr; }
  .bk-example__showcase { min-height: 300px; padding: 32px 30px 38px; }
  .bk-example__showcase img { height: 260px; }
  .bk-example__showcase--chair img { height: 175%; }
  .bk-example__product-content { padding: 24px; }
  .bk-example__product-content h3 { font-size: 28px; }
  .bk-example__original-frame { height: 340px; }
  .bk-delivery__steps, .bk-process { gap: 22px; }
  .bk-workspace { gap: 40px; }
}
@media (max-width: 700px) {
  body.bk-presentation .bk-hero { min-height: 780px; padding: 220px 24px 88px; align-items: flex-end; }
  .bk-pres-hero-photo { object-position: 78% center; }
  body.bk-presentation .bk-hero::after { background: linear-gradient(180deg, #101b1555, #101b1533 22%, #101b15c7 48%, #101b15f2 90%); }
  body.bk-presentation .bk-hero h1 { font-size: clamp(2.55rem, 8.5vw, 3.6rem); }
  .bk-hero__eyebrow { font-size: 9px; margin-bottom: 20px; }
  .bk-hero__lede { font-size: 14px; line-height: 1.75; }
  .bk-hero__ctas { flex-direction: column; align-items: stretch; }
  .bk-hero__reassurance { font-size: 10px; }
  .bk-pres-section { padding: 52px 22px; }
  .bk-pres-title { font-size: 32px; }
  .bk-section-intro { grid-template-columns: 1fr; gap: 20px; margin-bottom: 30px; }
  .bk-pres-subtitle { font-size: 14px; }
  .bk-example__comparison { grid-template-columns: 1fr; gap: 24px; }
  .bk-example__original-frame { height: 310px; }
  .bk-example__original-frame img { object-fit: contain; }
  .bk-example__original-frame--chair img { object-fit: cover; }
  .bk-example__original figcaption, .bk-example__result-label { min-height: 44px; margin-bottom: 12px; }
  .bk-example__showcase { min-height: 330px; }
  .bk-example__showcase img { height: 290px; }
  .bk-example__showcase--chair img { height: 175%; }
  .bk-example__product-content { padding: 24px; }
  .bk-example__description { font-size: 13px; }
  .bk-example__facts { font-size: 12px; }
  .bk-example__price span, .bk-example__delivery span { font-size: 11px; }
  .bk-example__delivery strong, .bk-example__product-content .bk-text-link { font-size: 12px; }
  .bk-example__validation { align-items: start; gap: 12px; }
  .bk-delivery__steps, .bk-process, .bk-pricing, .bk-workspace { grid-template-columns: 1fr; gap: 26px; }
  .bk-delivery h3, .bk-process h3 { font-size: 24px; margin-top: 12px; }
  .bk-delivery__bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
  .bk-diffusion { grid-template-columns: 1fr; gap: 20px; margin-top: 32px; padding: 24px; }
  .bk-pricing__card { padding: 24px; }
  .bk-pricing__value { font-size: 36px; }
  .bk-pricing__desc { font-size: 13px; }
  .bk-faq-item summary { font-size: 17px; }
  .bk-final-cta { padding: 58px 22px; }
  .bk-final-cta__ctas { flex-direction: column; }
  .bk-final-cta__note { font-size: 11px; }
}