* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--space-8); scrollbar-color: var(--color-muted) var(--color-background); }
body { margin: 0; background: var(--color-background); color: var(--color-foreground); font-family: var(--font-body); font-size: var(--text-body); line-height: var(--leading-body); -webkit-font-smoothing: antialiased; caret-color: var(--color-primary); accent-color: var(--color-primary); }
::selection { background: var(--color-accent); color: var(--color-on-accent); }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 4px; }
button { font: inherit; cursor: pointer; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 5px; }
button:disabled { opacity: .5; cursor: not-allowed; }
svg { flex-shrink: 0; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
h1, h2 { font-weight: 600; letter-spacing: var(--tracking-display); }
h2 { font-size: var(--text-headline); line-height: var(--leading-headline); }
h3 { font-weight: 600; }
[hidden] { display: none !important; }
.container { width: min(calc(100% - var(--gutter) * 2), var(--container)); margin-inline: auto; }
.section-space { padding-block: var(--section-space); }
.skip-link { position: fixed; inset: var(--space-4) auto auto var(--space-4); z-index: 20; padding: var(--space-3) var(--space-5); background: var(--color-primary); color: var(--color-on-primary); transform: translateY(-200%); border-radius: var(--radius-control); }
.skip-link:focus { transform: translateY(0); }

.site-header { border-bottom: 1px solid var(--color-border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-8); min-height: 100px; }
.brand { display: inline-flex; align-items: center; gap: var(--space-2); font-size: 33px; font-weight: 600; letter-spacing: -.045em; text-decoration: none; line-height: 1; min-height: 44px; }
.brand-symbol { margin-top: 3px; }
.main-nav { display: flex; gap: var(--space-8); margin-left: auto; margin-right: var(--space-8); }
.main-nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: var(--text-small); text-decoration: none; }
.main-nav a:hover { text-decoration: underline; }
.main-nav a:active { color: var(--color-muted); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-4); min-height: 52px; padding: var(--space-3) var(--space-6); border: 1px solid transparent; border-radius: var(--radius-control); font-size: var(--text-small); font-weight: 600; line-height: 1.4; text-decoration: none; transition: transform var(--duration-feedback) var(--ease-out), opacity var(--duration-feedback) var(--ease-out); }
.button-primary { background: var(--color-primary); color: var(--color-on-primary); box-shadow: var(--shadow-sm); }
.button-primary:hover { opacity: .9; }
.button:active { transform: translateY(1px); }
.button-small { min-height: 44px; padding-inline: var(--space-5); }
.button-outline { border-color: var(--color-control-border); background: transparent; color: var(--color-foreground); }
.button-outline:hover { background: var(--color-surface-secondary); }

.hero { display: grid; grid-template-columns: .91fr 1.09fr; gap: var(--space-12); align-items: center; padding-block: var(--space-12) var(--space-16); }
.hero-copy { padding-block: var(--space-6); }
.hero-kicker { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-small); color: var(--color-muted); margin-bottom: var(--space-6); }
.signal-dot { width: 7px; height: 7px; border-radius: var(--radius-full); background: var(--color-primary); flex-shrink: 0; }
h1 { max-width: 9.5em; font-size: var(--text-display); line-height: var(--leading-display); }
.hero-description { max-width: 44ch; color: var(--color-muted); margin-top: var(--space-6); margin-bottom: var(--space-8); font-size: var(--text-body); line-height: var(--leading-body); }
.development-note { margin-top: var(--space-5); font-size: var(--text-caption); line-height: 1.6; color: var(--color-muted); }
.product-stage { position: relative; background: var(--color-surface-secondary); border-radius: var(--radius-media); padding-top: var(--space-6); overflow: hidden; }
.stage-heading { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); padding-inline: var(--space-6); font-size: var(--text-small); font-weight: 600; }
.illustrative-tag { color: var(--color-muted); font-size: 11px; font-weight: 400; border: 1px solid var(--color-control-border); border-radius: var(--radius-full); padding: var(--space-1) var(--space-2); white-space: nowrap; }
.bottle-composition { position: relative; margin-top: var(--space-3); }
.bottle { width: 100%; height: auto; }
.material-label { position: absolute; display: flex; flex-direction: column; font-size: var(--text-caption); line-height: 1.5; }
.material-label span { color: var(--color-muted); font-size: 11px; }
.material-label strong { font-weight: 600; }
.label-cap { top: 3%; left: 6%; }
.label-seal { top: 13%; right: 7%; }
.label-steel { top: 33%; right: 4%; }
.label-process { top: 58%; left: 4%; }
.label-finish { top: 72%; right: 7%; }
.stage-footer { display: flex; align-items: center; justify-content: center; gap: var(--space-2); padding: 0 var(--space-5) var(--space-6); font-size: var(--text-caption); color: var(--color-muted); }
.hypothesis-dot { width: 6px; height: 6px; border-radius: var(--radius-full); background: var(--color-hypothesis); }
@keyframes object-enter { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.bottle-composition { animation: object-enter 360ms var(--ease-out) both; }

.audience-band { border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.audience-inner { display: flex; justify-content: space-between; align-items: center; gap: var(--space-8); padding-block: var(--space-8); }
.audience-inner p { font-size: var(--text-small); line-height: 1.6; color: var(--color-muted); }
.audience-list { display: flex; gap: var(--space-20); align-items: center; font-size: var(--text-title); font-weight: 500; letter-spacing: -.025em; }

.section-intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: var(--space-20); align-items: end; margin-bottom: var(--space-12); }
.section-intro p { color: var(--color-muted); max-width: 43ch; line-height: var(--leading-body); }
.scenario-demo { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-media); box-shadow: var(--shadow-lg); overflow: hidden; }
.demo-topline { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-5) var(--space-8); border-bottom: 1px solid var(--color-border); }
.demo-product { display: flex; align-items: center; gap: var(--space-3); font-size: var(--text-small); font-weight: 600; }
.demo-notice { color: var(--color-muted); font-size: var(--text-caption); }
.scenario-tabs { display: flex; gap: var(--space-2); padding: var(--space-4) var(--space-8); background: var(--color-surface); border-bottom: 1px solid var(--color-border); }
.scenario-tabs button { min-height: 44px; padding: var(--space-2) var(--space-5); border: 1px solid transparent; border-radius: var(--radius-control); background: transparent; color: var(--color-muted); font-size: var(--text-small); font-weight: 500; transition: opacity var(--duration-feedback) var(--ease-out); }
.scenario-tabs button[aria-selected="true"] { background: var(--color-primary); color: var(--color-on-primary); }
.scenario-tabs button:hover { background: var(--color-surface-secondary); color: var(--color-foreground); }
.scenario-tabs button[aria-selected="true"]:hover { background: var(--color-primary); color: var(--color-on-primary); opacity: .9; }
.scenario-tabs button:active { opacity: .75; }
.scenario-panel { display: grid; grid-template-columns: 1fr 1fr; min-height: 405px; }
.scenario-story { background: var(--color-demo-surface); padding: var(--space-10) var(--space-12); }
.scenario-context { font-size: var(--text-caption); color: var(--color-muted); margin-bottom: var(--space-3); }
.scenario-story h3 { font-size: 30px; line-height: 1.2; letter-spacing: -.035em; max-width: 13em; }
.scenario-story > p:not(.scenario-context) { font-size: var(--text-small); line-height: 1.7; color: var(--color-muted); margin-top: var(--space-4); max-width: 41ch; }
.route-diagram { display: flex; align-items: center; margin-top: var(--space-10); padding-top: var(--space-6); border-top: 1px solid var(--color-control-border); }
.route-diagram > div { display: flex; flex-direction: column; align-items: center; gap: var(--space-3); font-size: var(--text-caption); }
.route-line { height: 1px; flex: 1; min-width: var(--space-4); margin: calc(var(--space-6) * -1) var(--space-3) 0; background: var(--color-control-border); position: relative; }
.route-line::after { content: ''; position: absolute; right: 0; top: -3px; width: 6px; height: 6px; border-top: 1px solid var(--color-control-border); border-right: 1px solid var(--color-control-border); transform: rotate(45deg); }
.decision-ledger { padding: var(--space-8) var(--space-10); }
.ledger-heading { font-size: var(--text-caption); color: var(--color-muted); }
.decision-ledger dl { margin: var(--space-3) 0 0; font-size: var(--text-small); }
.decision-ledger dl > div { display: flex; flex-direction: column; gap: var(--space-1); padding-block: var(--space-3); border-bottom: 1px solid var(--color-border); }
.decision-ledger dt { font-weight: 600; }
.decision-ledger dd { margin: 0; color: var(--color-muted); font-size: var(--text-caption); }
.decision-outcome { display: flex; flex-direction: column; gap: var(--space-1); margin-top: var(--space-6); }
.decision-outcome span { font-size: var(--text-caption); color: var(--color-muted); }
.decision-outcome strong { font-size: var(--text-small); font-weight: 600; }
.demo-footnote { display: flex; align-items: flex-start; gap: var(--space-2); font-size: var(--text-caption); line-height: 1.6; color: var(--color-muted); padding: var(--space-4) var(--space-8); border-top: 1px solid var(--color-border); }
.demo-footnote svg { margin-top: 2px; }
.component-route { display: flex; align-items: center; justify-content: center; margin-top: var(--space-8); gap: 0; }
.component-sources { display: flex; flex-direction: column; gap: var(--space-2); font-size: var(--text-caption); }
.component-sources span { min-width: 86px; padding: var(--space-1) var(--space-3); border: 1px solid var(--color-control-border); border-radius: var(--radius-sm); text-align: center; }
.component-route svg { color: var(--color-control-border); }
.assembly-destination { padding: var(--space-4) var(--space-5); background: var(--color-primary); color: var(--color-on-primary); border-radius: var(--radius-control); font-size: var(--text-small); text-align: center; }
.assembly-destination small { font-size: var(--text-caption); color: var(--color-inverse-muted); }
.production-flow { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-3); margin-top: var(--space-6); font-size: var(--text-caption); }
.production-flow span { position: relative; padding: var(--space-2) var(--space-4); background: var(--color-surface); border-radius: var(--radius-control); }
.production-flow span:not(:last-child)::after { content: ''; position: absolute; width: 1px; height: var(--space-3); top: 100%; left: var(--space-5); background: var(--color-control-border); }

.intelligence-section { background: var(--color-inverse-surface); color: var(--color-on-inverse); padding-block: var(--space-20); }
.intelligence-inner { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-20); align-items: center; }
.intelligence-copy h2 { max-width: 14em; }
.intelligence-copy > p { color: var(--color-inverse-muted); font-size: 16px; line-height: 1.8; max-width: 45ch; margin-top: var(--space-6); }
.text-link { display: inline-flex; gap: var(--space-3); align-items: center; min-height: 44px; margin-top: var(--space-6); font-size: var(--text-small); text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.text-link:active { opacity: .8; }
.intelligence-section :focus-visible { outline-color: var(--color-accent); }
.evidence-view { background: color-mix(in srgb, var(--color-on-inverse) 5%, var(--color-inverse-surface)); color: var(--color-on-inverse); border: 1px solid var(--color-inverse-line); padding: var(--space-8); border-radius: var(--radius-group); }
.evidence-header { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); font-size: var(--text-small); font-weight: 600; margin-bottom: var(--space-4); }
.evidence-header svg { color: var(--color-inverse-muted); }
.evidence-row { display: flex; gap: var(--space-3); align-items: center; padding-block: var(--space-5); border-bottom: 1px solid var(--color-inverse-line); }
.evidence-row h3 { font-size: var(--text-small); font-weight: 500; margin-bottom: var(--space-1); }
.evidence-row p { color: var(--color-inverse-muted); font-size: var(--text-caption); line-height: 1.6; }
.evidence-marker { flex-shrink: 0; width: 7px; height: 7px; align-self: flex-start; margin-top: 8px; }
.marker-informed { background: var(--color-on-inverse); border-radius: var(--radius-full); }
.marker-sourced { border: 1px solid var(--color-accent); }
.marker-estimated { border: 1px solid var(--color-on-inverse); border-radius: var(--radius-full); }
.evidence-type { margin-left: auto; font-size: 10px; padding: 2px 7px; border: 1px solid var(--color-inverse-line); border-radius: var(--radius-full); color: var(--color-inverse-muted); }
.evidence-note { color: var(--color-inverse-muted); font-size: var(--text-caption); line-height: 1.7; margin-top: var(--space-5); }

.questions-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: var(--space-20); }
.questions-heading p { color: var(--color-muted); font-size: 16px; margin-top: var(--space-6); line-height: 1.7; }
.faq-list details { border-top: 1px solid var(--color-border); }
.faq-list details:last-child { border-bottom: 1px solid var(--color-border); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); min-height: 80px; padding-block: var(--space-5); list-style: none; cursor: pointer; font-size: 16px; font-weight: 500; }
summary::-webkit-details-marker { display: none; }
.faq-list summary:hover { color: var(--color-muted); }
.faq-list summary:active { opacity: .8; }
.faq-list summary svg { transition: transform var(--duration-feedback) var(--ease-out); }
.faq-list details[open] summary svg { transform: rotate(45deg); }
.faq-list details > p { padding-bottom: var(--space-6); padding-right: var(--space-8); color: var(--color-muted); font-size: var(--text-small); line-height: 1.75; }

.closing-section { background: var(--color-surface-secondary); padding-block: var(--space-16); }
.closing-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-12); }
.closing-inner p { font-size: var(--text-small); color: var(--color-muted); margin-bottom: var(--space-4); }
.closing-inner h2 { font-size: 36px; }
.closing-inner .button { flex-shrink: 0; }
.site-footer { padding-top: var(--space-12); padding-bottom: max(var(--space-6), env(safe-area-inset-bottom)); }
.footer-main { display: flex; align-items: center; gap: var(--space-12); padding-bottom: var(--space-12); }
.footer-main .brand { font-size: 29px; }
.footer-main > p { color: var(--color-muted); font-size: var(--text-caption); line-height: 1.7; }
.footer-status { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--color-muted); font-size: var(--text-caption); margin-left: auto; }
.footer-bottom { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-5); border-top: 1px solid var(--color-border); padding-top: var(--space-5); color: var(--color-muted); font-size: 11px; }
.footer-bottom > span { padding-top: var(--space-3); }
.footer-bottom > a { display: inline-flex; min-height: 44px; align-items: center; text-decoration: none; }
.footer-bottom > a:hover { text-decoration: underline; }
.footer-bottom > a:active { opacity: .8; }
.privacy-note { max-width: 48ch; margin-left: auto; }
.privacy-note summary { display: flex; align-items: center; min-height: 44px; cursor: pointer; list-style: none; }
.privacy-note summary:hover { text-decoration: underline; }
.privacy-note summary:active { opacity: .8; }
.privacy-note p { padding-bottom: var(--space-4); font-size: var(--text-caption); line-height: 1.7; }

@media (min-width: 1441px) { .hero { gap: var(--space-16); } }
@media (max-width: 1199px) {
  .hero { gap: var(--space-8); }
  .hero-kicker { font-size: 12px; }
  .hero-description { font-size: 16px; }
  .main-nav { margin-right: 0; }
  .stage-heading { font-size: 12px; padding-inline: var(--space-5); }
  .illustrative-tag { font-size: 9px; }
  .material-label { font-size: 10px; }
  .material-label span { font-size: 9px; }
  .audience-list { gap: var(--space-12); font-size: 21px; }
  .scenario-story { padding-inline: var(--space-8); }
  .decision-ledger { padding-inline: var(--space-8); }
  .intelligence-inner { gap: var(--space-12); }
  .evidence-view { padding: var(--space-6); }
  .evidence-type { display: none; }
}
@media (max-width: 1023px) {
  .header-inner { min-height: 88px; }
  .hero { grid-template-columns: 1fr 1fr; gap: var(--space-6); padding-block: var(--space-10) var(--space-12); }
  h1 { font-size: 48px; }
  .hero-kicker { max-width: 26ch; }
  .product-stage { padding-top: var(--space-4); }
  .stage-heading { flex-wrap: wrap; gap: var(--space-1); }
  .illustrative-tag { border: 0; padding: 0; }
  .material-label { font-size: 9px; }
  .material-label span { font-size: 8px; }
  .label-cap { left: 4%; }
  .label-steel { right: 2%; }
  .label-process { left: 3%; }
  .stage-footer { padding-inline: var(--space-3); padding-bottom: var(--space-4); }
  .audience-list { gap: var(--space-8); font-size: var(--text-body); }
  .section-intro { gap: var(--space-10); }
  .section-intro p { font-size: 16px; }
  .scenario-story h3 { font-size: 26px; }
  .scenario-story { padding: var(--space-8) var(--space-6); }
  .decision-ledger { padding: var(--space-6); }
  .route-diagram > div { font-size: 11px; }
  .intelligence-copy > p { font-size: var(--text-small); }
  .questions-section { gap: var(--space-12); }
  .closing-inner h2 { font-size: 30px; }
}
@media (max-width: 819px) {
  .hero { grid-template-columns: 1fr; gap: var(--space-10); }
  .hero-copy { padding-block: var(--space-2) 0; max-width: 610px; }
  .hero-kicker { max-width: none; margin-bottom: var(--space-5); }
  h1 { font-size: 60px; max-width: 11.2em; }
  .hero-description { max-width: 49ch; font-size: var(--text-body); }
  .desktop-break { display: none; }
  .product-stage { width: 100%; max-width: 670px; margin-inline: auto; padding-top: var(--space-6); }
  .stage-heading { font-size: var(--text-small); padding-inline: var(--space-6); }
  .illustrative-tag { border: 1px solid var(--color-control-border); padding: var(--space-1) var(--space-2); font-size: 11px; }
  .material-label { font-size: 13px; }
  .material-label span { font-size: 11px; }
  .stage-footer { padding-bottom: var(--space-6); }
  .label-cap { left: 6%; }
  .label-steel { right: 4%; }
  .label-process { left: 4%; }
  .audience-inner { align-items: flex-start; gap: var(--space-6); }
  .audience-list { flex-wrap: wrap; gap: var(--space-2) var(--space-6); justify-content: flex-end; }
  .audience-inner > p { min-width: 230px; }
  .scenario-tabs { padding-inline: var(--space-5); }
  .scenario-tabs button { padding-inline: var(--space-4); font-size: 13px; }
  .scenario-panel { grid-template-columns: 1fr 1fr; }
  .scenario-story { padding: var(--space-8) var(--space-6); }
  .route-line { margin-inline: var(--space-2); }
  .component-route svg { width: 40px; }
  .component-sources span { min-width: 70px; }
  .assembly-destination { padding: var(--space-3); font-size: 12px; }
  .intelligence-inner { grid-template-columns: 1fr; gap: var(--space-10); }
  .intelligence-copy { display: grid; grid-template-columns: 1fr 1fr; column-gap: var(--space-10); }
  .intelligence-copy > p { margin-top: 0; }
  .text-link { grid-column: 1 / -1; margin-top: var(--space-5); }
  .evidence-view { padding: var(--space-8); }
  .evidence-type { display: block; }
  .questions-section { grid-template-columns: 1fr; gap: var(--space-10); }
  .questions-heading { display: flex; justify-content: space-between; gap: var(--space-6); align-items: center; }
  .questions-heading p { margin-top: 0; font-size: var(--text-small); }
  .closing-inner { flex-direction: column; align-items: flex-start; gap: var(--space-8); }
}
@media (max-width: 599px) {
  .header-inner { min-height: 80px; gap: var(--space-3); }
  .brand { font-size: 28px; gap: 5px; }
  .brand-symbol { width: 28px; height: 28px; }
  .main-nav { display: none; }
  .header-inner .button { font-size: 11px; padding-inline: var(--space-3); min-height: 44px; gap: var(--space-2); }
  .header-inner .button svg { width: 15px; }
  .hero { padding-block: var(--space-8) var(--space-10); gap: var(--space-8); }
  .hero-copy { padding: 0; }
  .hero-kicker { font-size: 11px; margin-bottom: var(--space-5); }
  h1 { font-size: 44px; max-width: 10em; }
  .hero-description { font-size: 16px; line-height: 1.7; margin-top: var(--space-5); margin-bottom: var(--space-6); max-width: none; }
  .development-note { margin-top: var(--space-4); font-size: 11px; max-width: 38ch; }
  .product-stage { border-radius: var(--radius-group); padding-top: var(--space-4); }
  .stage-heading { padding-inline: var(--space-4); font-size: var(--text-caption); }
  .illustrative-tag { font-size: 11px; padding: 3px 5px; }
  .bottle-composition { margin-top: var(--space-4); }
  .material-label { font-size: var(--text-caption); line-height: 1.35; }
  .material-label span { font-size: var(--text-caption); }
  .label-cap { left: 4%; top: -1%; }
  .label-seal { right: 5%; top: 9%; }
  .label-steel { right: 2%; top: 29%; }
  .label-process { left: 3%; top: 45%; }
  .label-finish { right: 5%; top: 64%; }
  .stage-footer { padding-inline: var(--space-3); padding-bottom: var(--space-4); gap: 5px; }
  .audience-inner { flex-direction: column; gap: var(--space-5); padding-block: var(--space-6); }
  .audience-inner > p { min-width: 0; font-size: 13px; }
  .audience-inner > p br { display: none; }
  .audience-list { width: 100%; gap: var(--space-5); justify-content: flex-start; font-size: 16px; }
  .section-intro { grid-template-columns: 1fr; gap: var(--space-5); margin-bottom: var(--space-8); }
  .section-intro p { font-size: 16px; max-width: 34ch; }
  .scenario-demo { border-radius: var(--radius-group); }
  .demo-topline { padding: var(--space-4); align-items: center; gap: var(--space-2); }
  .demo-product { font-size: 12px; gap: var(--space-2); }
  .demo-product svg { width: 16px; height: 20px; }
  .demo-notice { font-size: 11px; text-align: right; max-width: 13ch; line-height: 1.5; }
  .scenario-tabs { padding: var(--space-3); gap: var(--space-1); justify-content: space-between; }
  .scenario-tabs button { padding: var(--space-2); font-size: 11px; line-height: 1.45; }
  .scenario-tabs button:nth-child(2) { max-width: 115px; }
  .scenario-panel { grid-template-columns: 1fr; min-height: 0; }
  .scenario-story { padding: var(--space-6); }
  .scenario-story h3 { font-size: 26px; max-width: 12em; }
  .scenario-story > p:not(.scenario-context) { font-size: 13px; margin-top: var(--space-3); }
  .scenario-context { font-size: 11px; margin-bottom: var(--space-3); }
  .route-diagram { margin-top: var(--space-6); padding-top: var(--space-5); }
  .route-diagram > div { gap: var(--space-2); }
  .decision-ledger { padding: var(--space-6); }
  .decision-ledger dl > div { flex-direction: row; justify-content: space-between; gap: var(--space-4); padding-block: var(--space-4); }
  .decision-ledger dt { font-size: 12px; max-width: 11ch; flex-shrink: 0; }
  .decision-ledger dd { font-size: 11px; text-align: right; max-width: 20ch; }
  .decision-outcome { margin-top: var(--space-5); }
  .decision-outcome strong { font-size: 13px; }
  .demo-footnote { padding: var(--space-4); font-size: var(--text-caption); }
  .component-route { margin-top: var(--space-6); }
  .component-route svg { width: 80px; }
  .component-sources span { min-width: 80px; }
  .assembly-destination { padding: var(--space-4); }
  .intelligence-section { padding-block: var(--space-16); }
  .intelligence-inner { gap: var(--space-8); }
  .intelligence-copy { display: block; }
  .intelligence-copy > p { margin-top: var(--space-5); font-size: 15px; line-height: 1.8; }
  .text-link { margin-top: var(--space-5); font-size: 12px; }
  .evidence-view { padding: var(--space-5); }
  .evidence-header { font-size: 12px; margin-bottom: var(--space-2); }
  .evidence-row { gap: var(--space-3); padding-block: var(--space-4); }
  .evidence-row h3 { font-size: 13px; }
  .evidence-row p { font-size: 11px; }
  .evidence-type { display: none; }
  .evidence-note { font-size: 11px; }
  .questions-heading { display: block; }
  .questions-heading p { margin-top: var(--space-5); }
  .questions-heading p br { display: none; }
  .faq-list summary { font-size: 14px; min-height: 76px; }
  .faq-list details > p { font-size: 13px; padding-right: 0; }
  .closing-section { padding-block: var(--space-12); }
  .closing-inner { gap: var(--space-6); }
  .closing-inner h2 { font-size: 30px; }
  .closing-inner h2 br { display: none; }
  .closing-inner p { font-size: 12px; }
  .footer-main { flex-wrap: wrap; gap: var(--space-6); padding-bottom: var(--space-8); }
  .footer-main > p { margin-left: auto; font-size: 10px; }
  .footer-status { flex-basis: 100%; margin-left: 0; font-size: 11px; }
  .footer-bottom { flex-wrap: wrap; gap: var(--space-2) var(--space-4); }
  .footer-bottom > span { flex: 1; }
  .privacy-note { order: 3; flex-basis: 100%; margin-left: 0; max-width: none; }
  .privacy-note p { max-width: 45ch; }
}
@media (max-width: 359px) {
  .header-inner .button { font-size: 10px; padding-inline: var(--space-2); }
  .header-inner .button svg { display: none; }
  h1 { font-size: 40px; }
  .hero-kicker { font-size: 10px; }
  .stage-heading { flex-direction: column; align-items: flex-start; gap: var(--space-1); }
  .illustrative-tag { border: 0; padding: 0; }
  .label-cap { top: -3%; }
  .label-seal { top: 5%; }
  .label-steel { top: 26%; }
  .label-process { top: 42%; }
  .label-finish { top: 62%; }
  .audience-list { gap: var(--space-4); font-size: 14px; }
  .scenario-tabs button { font-size: 10px; padding-inline: 6px; }
  .decision-ledger, .scenario-story { padding: var(--space-5); }
  .component-route svg { width: 60px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

.atlas-section { background: var(--color-background); }
.atlas-intro { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); align-items: end; gap: var(--space-16); margin-bottom: var(--space-10); }
.atlas-kicker { color: var(--color-muted); font-size: var(--text-small); font-weight: 600; margin-bottom: var(--space-4); }
.atlas-intro h2 { max-width: 15ch; }
.atlas-intro > p { max-width: 47ch; color: var(--color-muted); font-size: 16px; line-height: 1.75; padding-bottom: var(--space-1); }
.atlas-picker { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--space-2); margin-bottom: var(--space-6); }
.atlas-product { position: relative; display: flex; align-items: center; gap: var(--space-2); min-height: 110px; padding: var(--space-3); text-align: left; color: var(--color-foreground); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-control); transition: background var(--duration-feedback) var(--ease-out), border-color var(--duration-feedback) var(--ease-out), transform var(--duration-feedback) var(--ease-out); }
.atlas-product:hover { background: var(--color-surface-secondary); border-color: var(--color-control-border); }
.atlas-product:active { transform: translateY(1px); }
.atlas-product.is-active { background: var(--color-primary); color: var(--color-on-primary); border-color: var(--color-primary); }
.atlas-product svg { display: block; width: 62px; height: 62px; flex: 0 0 62px; color: currentColor; }
.atlas-product strong, .atlas-product small { display: block; }
.atlas-product strong { font-size: 14px; line-height: 1.35; }
.atlas-product small { color: var(--color-muted); font-size: 11px; line-height: 1.45; margin-top: 3px; }
.atlas-product.is-active small { color: var(--color-on-primary); opacity: .8; }
.atlas-workbench { display: grid; grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr); overflow: clip; border: 1px solid var(--color-border); border-radius: var(--radius-media); background: var(--color-surface); box-shadow: var(--shadow-md); }
.atlas-focus { display: flex; flex-direction: column; background: var(--color-surface-secondary); min-width: 0; padding: var(--space-8); }
.atlas-focus-head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); font-size: 12px; color: var(--color-muted); }
.atlas-focus-head span:last-child { font-variant-numeric: tabular-nums; }
.atlas-product-stage { position: relative; display: grid; place-items: center; min-height: 330px; isolation: isolate; }
.atlas-product-stage::before { content: ''; position: absolute; width: min(76%, 280px); aspect-ratio: 1; border-radius: 50%; background: color-mix(in srgb, var(--color-surface) 68%, var(--color-surface-secondary)); z-index: -1; }
.atlas-product-stage svg { display: block; width: min(85%, 300px); height: auto; color: var(--color-foreground); filter: drop-shadow(0 22px 18px rgb(22 59 50 / 12%)); }
@keyframes atlas-object-enter { from { opacity: .3; transform: translateY(10px) scale(.97); } to { opacity: 1; transform: translateY(0) scale(1); } }
.atlas-product-stage svg.is-changing { animation: atlas-object-enter 360ms var(--ease-out) both; }
.atlas-stage-ring { position: absolute; width: min(90%, 310px); height: min(90%, 310px); border: 1px solid color-mix(in srgb, var(--color-foreground) 12%, transparent); border-radius: 50%; z-index: -1; }
.atlas-focus-copy > p:first-child { color: var(--color-muted); font-size: 12px; margin-bottom: var(--space-2); }
.atlas-focus-copy h3 { font-size: clamp(2rem, 2.6vw, 2.75rem); line-height: 1.12; letter-spacing: var(--tracking-display); }
.atlas-focus-copy > p:last-child { max-width: 36ch; margin-top: var(--space-4); color: var(--color-muted); font-size: 15px; line-height: 1.75; }
.atlas-evidence-note { display: flex; align-items: flex-start; gap: var(--space-2); margin-top: auto; padding-top: var(--space-8); color: var(--color-hypothesis); font-size: 12px; line-height: 1.55; }
.atlas-evidence-note .hypothesis-dot { margin-top: 6px; flex: 0 0 auto; }
.atlas-journey { min-width: 0; padding: var(--space-8); }
.atlas-journey-head { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-6); padding-bottom: var(--space-6); border-bottom: 1px solid var(--color-border); }
.atlas-journey-head p { color: var(--color-muted); font-size: 12px; margin-bottom: var(--space-2); }
.atlas-journey-head h3 { font-size: 24px; line-height: 1.25; }
.atlas-journey-head > span { flex: 0 0 auto; color: var(--color-muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.atlas-journey-body { display: grid; grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr); gap: var(--space-6); padding-top: var(--space-6); }
.atlas-steps { position: relative; display: flex; flex-direction: column; gap: var(--space-1); }
.atlas-steps::before, .atlas-steps::after { content: ''; position: absolute; width: 2px; top: 24px; bottom: 24px; left: 15px; pointer-events: none; }
.atlas-steps::before { background: var(--color-border); }
.atlas-steps::after { background: var(--color-primary); transform-origin: top; transform: scaleY(var(--atlas-progress)); transition: transform var(--duration-enter) var(--ease-out); }
.atlas-step { position: relative; z-index: 1; display: flex; align-items: center; gap: var(--space-3); width: 100%; min-height: 58px; padding: var(--space-2); text-align: left; border: 1px solid transparent; border-radius: var(--radius-control); background: transparent; color: var(--color-foreground); transition: background var(--duration-feedback) var(--ease-out), border-color var(--duration-feedback) var(--ease-out); }
.atlas-step:hover { background: var(--color-surface-secondary); }
.atlas-step.is-active { background: var(--color-surface-secondary); border-color: var(--color-border); }
.atlas-step-node { display: block; width: 16px; height: 16px; border: 2px solid var(--color-control-border); background: var(--color-surface); border-radius: 50%; flex: 0 0 16px; }
.atlas-step.is-active .atlas-step-node { border-color: var(--color-primary); background: var(--color-accent); box-shadow: 0 0 0 3px var(--color-surface); }
.atlas-step strong, .atlas-step small { display: block; }
.atlas-step strong { font-size: 13px; line-height: 1.4; }
.atlas-step small { margin-top: 2px; color: var(--color-muted); font-size: 11px; line-height: 1.3; }
.atlas-detail { position: sticky; top: var(--space-6); align-self: start; min-height: 360px; display: flex; flex-direction: column; padding: var(--space-6); border-radius: var(--radius-group); background: var(--color-surface-secondary); }
.atlas-detail-eyebrow { color: var(--color-muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.atlas-detail h4 { margin: var(--space-6) 0 var(--space-4); font-size: 24px; line-height: 1.2; font-weight: 600; letter-spacing: -.02em; text-wrap: balance; }
.atlas-detail > p { color: var(--color-muted); font-size: 14px; line-height: 1.7; }
.atlas-decision { margin-top: auto; padding-top: var(--space-6); }
.atlas-decision span { display: block; color: var(--color-muted); font-size: 11px; margin-bottom: var(--space-2); }
.atlas-decision strong { display: block; font-size: 14px; line-height: 1.5; }
.atlas-next { display: inline-flex; align-items: center; align-self: flex-start; gap: var(--space-2); min-height: 44px; margin-top: var(--space-5); padding: 0; border: 0; background: transparent; color: var(--color-primary); font-size: 13px; font-weight: 600; }
.atlas-next:hover { text-decoration: underline; text-underline-offset: 4px; }
.atlas-next:active { opacity: .75; }
.atlas-disclaimer { display: flex; align-items: flex-start; max-width: 86ch; margin-top: var(--space-5); color: var(--color-muted); font-size: 12px; line-height: 1.6; }
.closing-note { display: block; max-width: 46ch; margin-top: var(--space-4); color: var(--color-muted); font-size: 14px; line-height: 1.6; }

@media (max-width: 1199px) {
  .atlas-picker { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .atlas-product { min-height: 88px; }
  .atlas-product-stage { min-height: 290px; }
  .atlas-journey-body { gap: var(--space-3); }
  .atlas-focus, .atlas-journey { padding: var(--space-6); }
}
@media (max-width: 819px) {
  .atlas-intro { grid-template-columns: 1fr; gap: var(--space-5); }
  .atlas-intro h2 { max-width: 19ch; }
  .atlas-workbench { grid-template-columns: 1fr; }
  .atlas-focus { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0 var(--space-8); }
  .atlas-focus-head { grid-column: 1 / -1; }
  .atlas-product-stage { grid-row: 2 / 4; min-height: 250px; }
  .atlas-focus-copy { grid-column: 2; align-self: center; }
  .atlas-evidence-note { grid-column: 2; padding-top: var(--space-4); }
  .atlas-journey-body { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-6); }
}
@media (max-width: 599px) {
  .atlas-intro { margin-bottom: var(--space-8); }
  .atlas-intro > p { font-size: 15px; }
  .atlas-picker { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-2); }
  .atlas-product { min-height: 114px; padding: var(--space-3); flex-direction: column; align-items: flex-start; gap: var(--space-1); }
  .atlas-product:last-child { grid-column: 1 / -1; min-height: 78px; flex-direction: row; align-items: center; gap: var(--space-3); }
  .atlas-product svg { width: 38px; height: 38px; flex-basis: 38px; }
  .atlas-product strong { font-size: 13px; }
  .atlas-product small { font-size: 12px; }
  .atlas-workbench { border-radius: var(--radius-group); }
  .atlas-focus { display: block; padding: var(--space-5); }
  .atlas-product-stage { min-height: 220px; }
  .atlas-product-stage svg { width: min(70%, 210px); }
  .atlas-stage-ring { width: 220px; height: 220px; }
  .atlas-focus-copy h3 { font-size: 32px; }
  .atlas-focus-copy > p:last-child { font-size: 14px; }
  .atlas-evidence-note { margin-top: var(--space-2); padding-top: var(--space-5); }
  .atlas-journey { padding: var(--space-5); }
  .atlas-journey-head h3 { font-size: 20px; }
  .atlas-journey-body { grid-template-columns: 1fr; gap: var(--space-5); }
  .atlas-step { min-height: 52px; }
  .atlas-step strong { font-size: 13px; }
  .atlas-step small { font-size: 11px; }
  .atlas-detail { position: static; min-height: 0; padding: var(--space-5); }
  .atlas-detail h4 { margin-top: var(--space-4); font-size: 22px; }
  .atlas-decision { padding-top: var(--space-5); }
  .atlas-disclaimer { font-size: 11px; }
}
@media (max-width: 359px) {
  .atlas-product { min-height: 122px; }
}
@media (prefers-reduced-motion: reduce) {
  .atlas-product-stage svg.is-changing { animation: none; }
  .atlas-steps::after { transition: none; }
}