.commerce-chapter { margin-top: 100px; scroll-margin-top: 128px; }
.commerce-intro { display: grid; grid-template-columns: 1.2fr 1fr; align-items: end; gap: 80px; margin: 0 8px 44px; }
.commerce-intro h2, .connected-intro h2 { font-size: clamp(2.4rem,4.4vw,3.75rem); }
.commerce-intro .section-copy { margin: 0; }
.commerce-products { display: grid; gap: 32px; }
.commerce-card { position: relative; isolation: isolate; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 50px; padding: 54px 64px; border-radius: 44px; min-height: 510px; }
.commerce-dark { background: #12334e; color: #fff; }
.commerce-light { background: #e9f0f6; color: var(--ink); }
.commerce-card:nth-child(even) .commerce-copy { order: 1; }
.commerce-card:nth-child(even) .commerce-art { order: 0; }
.product-label { color: var(--gold-ink); font-size: 13px; font-weight: 600; margin-bottom: 20px; }
.commerce-dark .product-label, .commerce-dark .category-eyebrow { color: #7fcaf0; }
.commerce-copy h3 { font-size: clamp(30px,3.2vw,43px); line-height: 1.12; letter-spacing: -.04em; margin: 0 0 24px; font-weight: 650; }
.commerce-copy>p:not(.product-label) { font-size: 17px; line-height: 1.65; color: var(--muted); max-width: 43ch; }
.commerce-dark .commerce-copy>p:not(.product-label) { color: #d7e2ec; }
.commerce-copy ul { padding: 0; margin: 25px 0 0; list-style: none; display: grid; gap: 12px; font-size: 16px; }
.commerce-copy li { padding-left: 18px; border-left: 2px solid var(--gold); }
.commerce-dark .service-link { color: #bfe3f7; }
.commerce-copy .service-link { margin-top: 26px; }
.commerce-art { min-width: 0; height: 390px; position: relative; }
.commerce-art .category-image { position: absolute; width: 110%; height: 100%; left: -5%; top: 0; }
.commerce-card:nth-child(even) .category-image img { animation-delay: -4s; }
.commerce-copy h3, #billing-info { scroll-margin-top: 140px; }
.connected-chapter { margin-top: 44px; padding: 64px; border-radius: 44px; scroll-margin-top: 128px; }
.connected-intro { max-width: 780px; margin-inline: auto; text-align: center; }
.connected-intro .category-eyebrow { justify-content: center; }
.connected-intro .section-copy { color: #d7e2ec; max-width: 65ch; margin-inline: auto; }
.connected-map { position: relative; margin-top: 40px; height: 410px; display: grid; grid-template-columns: 1fr .85fr 1fr; grid-template-rows: 1fr 1fr; gap: 28px 60px; align-items: center; }
.connection-lines { position: absolute; inset: 0; width: 100%; height: 100%; stroke: #587b96; stroke-width: 1.5; pointer-events: none; }
.connection-lines .connection-flow { stroke: #bfe3f7; stroke-width: 2.5; stroke-dasharray: 7 26; animation: connected-flow 9s linear infinite; animation-play-state: paused; }
@keyframes connected-flow { to { stroke-dashoffset: -198; } }
.scene-active .connection-flow { animation-play-state: running; }
.connected-node, .connected-hub { position: relative; z-index: 1; display: grid; justify-items: center; text-align: center; border-radius: 26px; padding: 24px 15px; transition: transform 850ms var(--art-ease), background-color 850ms var(--art-ease); }
.connected-node { background: #1c435f; min-height: 155px; border-bottom: 5px solid #09283f; }
.connected-node svg { width: 33px; height: 33px; color: #7fcaf0; margin-bottom: 12px; }
.connected-node>span { font-size: 18px; font-weight: 600; line-height: 1.3; }
.connected-node small { font-size: 13px; color: #d7e2ec; margin-top: 7px; }
.connected-node:hover { transform: perspective(800px) rotateY(-7deg) translateY(-5px); background: #28516e; }
.node-pos { grid-column: 1; grid-row: 1; }
.node-shop { grid-column: 3; grid-row: 1; }
.node-stock { grid-column: 1; grid-row: 2; }
.node-billing { grid-column: 3; grid-row: 2; }
.connected-hub { grid-column: 2; grid-row: 1 / 3; background: #e1f0fa; color: #173d60; padding-block: 35px; border-bottom: 7px solid #6cbfea; border-right: 4px solid #6cbfea; box-shadow: 0 18px 35px #071e3026; transform: perspective(800px) rotateY(calc(var(--scene-turn,0deg) * .5)); }
.connected-hub svg { width: 46px; height: 46px; margin-bottom: 14px; }
.connected-hub strong { font-size: 25px; letter-spacing: -.04em; }
.connected-hub>span { font-size: 14px; margin-top: 5px; }
.connected-explanation { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; border-top: 1px solid #587b9660; padding-top: 30px; margin-top: 30px; }
.connected-explanation h3 { margin: 0 0 12px; font-size: 20px; letter-spacing: -.025em; }
.connected-explanation p { font-size: 16px; line-height: 1.65; color: #d7e2ec; }
.connected-actions { display: flex; align-items: center; gap: 35px; margin-top: 20px; }
.connected-actions .service-link { color: #bfe3f7; margin-top: 0; flex: none; }
.connected-actions>span { font-size: 13px; color: #d7e2ec; max-width: 45ch; }
/* Opacity + independent translate preserve the existing parallax and 3D rotations. */
.motion-ready .category-image { opacity: var(--image-presence,1); translate: 0 var(--image-offset,0px); scale: calc(.94 + var(--image-presence,1) * .06); transition: opacity 850ms var(--art-ease), translate 1100ms var(--art-ease), scale 1100ms var(--art-ease), rotate 1200ms var(--art-ease); }
body.page-idle .connection-flow, body.swal2-shown .connection-flow { animation-play-state: paused; }
body.motion-off .category-image { opacity: 1; translate: none; scale: none; }
body.motion-off .connected-hub { transform: none; }
@media (max-width:1100px) {
  .commerce-card { padding: 44px; gap: 28px; }
  .commerce-art { height: 330px; }
  .connected-chapter { padding: 44px; }
  .connected-map { column-gap: 25px; }
  .connected-node>span { font-size: 16px; }
}
@media (min-width:801px) and (max-width:1000px) {
  .nav-links { gap: 10px; }
  .nav-links a { font-size: 12px; }
  .brand { font-size: 22px; }
  .nav { gap: 12px; }
  .nav-cta { padding-inline: 14px; font-size: 13px; }
}
@media (max-width:800px) {
  .commerce-chapter { margin-top: 64px; scroll-margin-top: 108px; }
  .commerce-intro { display: block; margin: 0 8px 28px; }
  .commerce-intro h2, .connected-intro h2 { font-size: clamp(31px,8.6vw,39px); }
  .commerce-intro .section-copy { margin-top: 22px; }
  .commerce-products { gap: 24px; }
  .commerce-card { display: flex; flex-direction: column; gap: 14px; padding: 32px 24px 24px; border-radius: 32px; min-height: 0; }
  .commerce-card .commerce-copy, .commerce-card:nth-child(even) .commerce-copy { order: 0; width: 100%; }
  .commerce-card .commerce-art, .commerce-card:nth-child(even) .commerce-art { order: 1; width: 100%; height: 280px; }
  .commerce-copy h3 { font-size: 30px; margin-bottom: 20px; }
  .commerce-copy>p:not(.product-label) { font-size: 16px; }
  .commerce-copy ul { font-size: 15px; gap: 10px; }
  .product-label { font-size: 12px; margin-bottom: 14px; }
  .commerce-copy .service-link { font-size: 16px; margin-top: 20px; }
  .commerce-copy h3, #billing-info { scroll-margin-top: 120px; }
  .connected-chapter { margin-top: 24px; padding: 34px 24px; border-radius: 32px; scroll-margin-top: 108px; }
  .connected-intro { text-align: left; }
  .connected-intro .category-eyebrow { justify-content: start; }
  .connected-map { height: auto; grid-template-columns: 1fr 1fr; grid-template-rows: auto; gap: 18px 12px; margin-top: 30px; }
  .connection-lines { display: none; }
  .connected-map::before { content: ''; position: absolute; top: 60px; bottom: 60px; left: 50%; border-left: 2px dashed #7fcaf080; }
  .connected-hub { grid-column: 1 / -1; grid-row: 2; width: 78%; margin: 0 auto; padding: 22px 16px; }
  .node-pos { grid-column: 1; grid-row: 1; }
  .node-shop { grid-column: 2; grid-row: 1; }
  .node-stock { grid-column: 1; grid-row: 3; }
  .node-billing { grid-column: 2; grid-row: 3; }
  .connected-node { min-height: 158px; padding: 18px 10px; border-radius: 20px; }
  .connected-node>span { font-size: 15px; }
  .connected-node small { font-size: 12px; }
  .connected-hub strong { font-size: 24px; }
  .connected-hub svg { width: 34px; height: 34px; margin-bottom: 7px; }
  .connected-explanation { grid-template-columns: 1fr; gap: 25px; }
  .connected-explanation h3 { font-size: 19px; }
  .connected-explanation p { font-size: 15px; }
  .connected-actions { display: grid; gap: 13px; }
}
@media (prefers-reduced-motion:reduce) {
  .motion-ready .category-image { opacity: 1; translate: none; scale: none; }
  .connection-flow { animation: none !important; }
  .connected-hub { transform: none; }
}