/* Chain offering: shared homepage entry and dedicated landing page. */
.chain-kicker, .chain-number { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.chain-kicker { margin: 0 0 24px; }
.chain-button { display: inline-flex; align-items: center; justify-content: space-between; gap: 20px; max-width: 100%; padding: 15px 22px; border: 1px solid var(--espresso); border-radius: 999px; background: var(--espresso); color: var(--cream); font: 500 15px/1.4 var(--sans); text-decoration: none; }
.chain-button:hover { background: var(--espresso-2); color: var(--cream); }
.chain-button-light { background: var(--cream); color: var(--espresso); border-color: var(--cream); }
.chain-button-light:hover { background: var(--cream-3); color: var(--espresso); }
.chain-button:focus-visible, .chain-text-link:focus-visible { outline: 2px solid #b75929; outline-offset: 5px; }
.chain-home { background: var(--espresso); color: var(--cream); padding: 64px 0; }
.chain-home-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 72px; align-items: center; }
.chain-home .chain-kicker { color: #e6b28b; margin-bottom: 18px; }
.chain-home h2 { font: 400 clamp(36px, 4.5vw, 62px)/1.06 var(--serif); letter-spacing: -.025em; margin: 0; }
.chain-home h2 em { font-weight: 400; }
.chain-home-copy > p { max-width: 43ch; color: #eee3d6; font-size: 17px; line-height: 1.65; margin: 0 0 24px; }
.chain-home-note { display: block; font-size: 13px; margin-top: 14px; color: #d1bdab; }
.chain-pricing-note { margin: 26px 0 0; padding: 20px 24px; border: 1px solid var(--rule); font-size: 15px; text-align: center; line-height: 1.6; }
.chain-pricing-note a { text-decoration: underline; text-underline-offset: 3px; }
.chain-wrap { max-width: 1360px; margin-inline: auto; padding-inline: 48px; }
.chain-hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; padding-block: 76px; }
.chain-hero h1 { font: 400 clamp(48px, 5.6vw, 82px)/1.02 var(--serif); letter-spacing: -.035em; margin: 0 0 28px; }
.chains-page h1 em, .chains-page h2 em { font-weight: 400; }
.chain-lead { font-size: 19px; line-height: 1.6; max-width: 43ch; color: var(--espresso-2); margin: 0 0 30px; }
.chain-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 20px 24px; }
.chain-text-link { font-size: 15px; text-decoration: underline; text-underline-offset: 5px; }
.chain-hero-note { font-size: 13px; color: var(--gray); max-width: 43ch; margin: 28px 0 0; }
.chain-hero-image { margin: 0; position: relative; background: var(--cream-2); }
.chain-hero-image img { display: block; width: 100%; height: auto; aspect-ratio: 1 / 1.1; object-fit: cover; }
.chain-hero-image figcaption { display: flex; justify-content: space-between; gap: 12px; padding: 18px 22px; background: #a74724; color: #fff8ec; font: 400 22px/1.2 var(--serif); }
.chain-benefits { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; padding-block: 12px 80px; }
.chain-benefits > div { border-top: 1px solid var(--rule); padding-top: 24px; }
.chain-number { color: var(--espresso-2); }
.chain-benefits h2 { font: 400 30px/1.1 var(--serif); letter-spacing: -.02em; margin: 18px 0 14px; }
.chain-benefits p { font-size: 16px; line-height: 1.65; color: var(--gray); margin: 0; }
.chain-pilot { background: var(--espresso); color: var(--cream); padding-block: 80px; scroll-margin-top: 90px; }
.chain-pilot-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 96px; }
.chain-pilot .chain-kicker, .chain-pilot .chain-number { color: #e6b28b; }
.chains-page h2 { text-wrap: balance; }
.chain-pilot h2, .chain-section-intro h2, .chain-final h2 { font: 400 clamp(36px, 4vw, 56px)/1.08 var(--serif); letter-spacing: -.025em; margin: 0 0 24px; }
.chain-pilot-intro > p:not([class]) { max-width: 43ch; margin: 0 0 28px; color: #eee3d6; font-size: 17px; line-height: 1.65; }
.chain-pilot-note { color: #d1bdab; font-size: 13px; max-width: 43ch; margin: 18px 0 0; }
.chain-steps { list-style: none; padding: 0; margin: 0; }
.chain-steps li { display: grid; grid-template-columns: 28px 1fr; gap: 18px; border-top: 1px solid #665346; padding: 26px 0; }
.chain-steps li:first-child { padding-top: 22px; }
.chain-steps h3 { font: 400 29px/1.15 var(--serif); margin: 0 0 12px; }
.chain-steps p { font-size: 16px; color: #eee3d6; line-height: 1.65; margin: 0; }
.chain-practical, .chain-faq { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; padding-block: 80px; }
.chain-practical-rows > div { border-top: 1px solid var(--rule); padding: 24px 0; }
.chain-practical-rows h3 { font-size: 17px; font-weight: 600; margin: 0 0 12px; }
.chain-practical-rows p { font-size: 16px; line-height: 1.65; color: var(--gray); margin: 0; }
.chain-faq { padding-top: 0; }
.chain-faq details { border-top: 1px solid var(--rule); padding-block: 22px; }
.chain-faq details:last-child { border-bottom: 1px solid var(--rule); }
.chain-faq summary { cursor: pointer; font-size: 17px; font-weight: 500; padding-right: 8px; }
.chain-faq summary:focus-visible { outline: 2px solid var(--espresso); outline-offset: 5px; }
.chain-faq details p { font-size: 16px; line-height: 1.65; color: var(--gray); margin: 18px 0 0; }
.chain-final { text-align: center; padding-block: 64px 96px; border-top: 1px solid var(--rule); }
.chain-final > p:not([class]) { font-size: 18px; max-width: 43ch; margin: 0 auto 28px; color: var(--gray); }
.chain-final > .chain-text-link { display: table; margin: 24px auto 0; }
.chain-skip { position: fixed; top: 8px; left: 8px; z-index: 100; padding: 12px 20px; background: var(--espresso); color: var(--cream); transform: translateY(-150%); }
.chain-skip:focus { transform: none; color: var(--cream); }
@media (min-width: 769px) and (max-width: 1100px) {
  .nav .nav-links { gap: 18px; font-size: 13px; }
  .nav .nav-inner { padding-inline: 24px; }
}
@media (max-width: 1000px) {
  .chain-wrap { padding-inline: 32px; }
  .chain-hero, .chain-home-grid { gap: 36px; }
  .chain-pilot-grid, .chain-practical, .chain-faq { gap: 40px; }
}
@media (max-width: 800px) {
  .chain-hero { grid-template-columns: 1fr; padding-block: 48px; }
  .chain-hero h1 { font-size: clamp(48px, 9vw, 70px); }
  .chain-hero-image img { aspect-ratio: 4 / 3; }
  .chain-benefits { grid-template-columns: 1fr; gap: 28px; padding-bottom: 56px; }
  .chain-benefits h2 { margin-block: 14px 10px; }
  .chain-home-grid, .chain-pilot-grid, .chain-practical, .chain-faq { grid-template-columns: 1fr; gap: 32px; }
  .chain-home, .chain-pilot { padding-block: 48px; }
  .chain-home-copy > p { max-width: 50ch; }
  .chain-practical { padding-block: 56px; }
  .chain-faq { padding-bottom: 56px; }
  .chain-section-intro h2 { margin-bottom: 0; }
}
@media (max-width: 480px) {
  .chain-wrap { padding-inline: 24px; }
  .chain-lead { font-size: 17px; }
  .chain-kicker { font-size: 10px; letter-spacing: .09em; }
  .chain-hero-image figcaption { padding: 16px; font-size: 20px; }
  .chain-button { font-size: 14px; padding: 14px 18px; gap: 12px; }
  .chain-final { padding-block: 48px 64px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}