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center;opacity:.35}.gravity-shade{background:linear-gradient(0deg,#03070b 2%,rgba(3,7,11,.05) 44%,#03070b 98%)}.asset-node text{font-size:11px}.chapter-tabs{left:24px;right:24px;bottom:5.5%;gap:13px;grid-template-columns:repeat(4,1fr)}.chapter-tabs button{font-size:10px;padding-top:10px;line-height:1.5}.chapter-tabs button span{display:block;margin-bottom:6px;margin-right:0;font-size:9px}.section-wrap{padding:82px 24px}.section-heading{margin-bottom:38px}.eyebrow{font-size:10px;letter-spacing:.18em}h2{font-size:35px;letter-spacing:-.05em}.section-heading h2{margin:19px 0}.section-heading>p:last-child{font-size:15px}.desktop-break{display:none}.engine-grid{grid-template-columns:1fr}.engine-card,.engine-card+.engine-card{padding:31px 0;border-left:0}.engine-card+.engine-card{border-top:1px solid var(--line)}.engine-card h3{font-size:28px;margin:22px 0 15px}.engine-card>p{min-height:0;max-width:400px;font-size:15px}.engine-card ul{margin:18px 0 24px;font-size:13px}.engine-card button{padding-top:15px}.engine-note{font-size:12px;line-height:1.8}.asset-tabs{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line)}.asset-tabs button,.asset-tabs button:first-child{padding:14px 12px;font-size:12px;text-align:center}.asset-tabs button:nth-child(odd){border-right:1px solid var(--line)}.asset-tabs button:nth-child(-n+2){border-bottom:1px solid var(--line)}.asset-tabs button[aria-selected="true"]{background:#112634;box-shadow:inset 0 -2px #9bdcff}.flywheel-panel{grid-template-columns:1fr;padding-top:16px;gap:12px}.flywheel-map{min-height:325px;height:350px;max-width:450px;width:100%;margin:auto}.flywheel-map svg{height:100%}.map-label span{font-size:8px}.map-label strong{font-size:12px}.map-origin{bottom:25%}.map-destination{top:10%;right:0}.map-caption{font-size:8px;bottom:0}.asset-details{padding-top:10px}.asset-details h3{font-size:29px}.asset-details>p:not(.eyebrow):not(.relationship-label){font-size:14px}.fine-note{font-size:11px}.case-top{display:block;margin-bottom:37px}.case-top h2{margin:18px 0 27px}.case-brand>span{font-size:25px}.case-body{grid-template-columns:1fr;gap:32px}.case-intro>p:first-child{font-size:20px}.case-intro>p:nth-child(2){font-size:14px}.case-tabs{gap:9px}.case-tabs button{font-size:10px}.case-tabs button span{font-size:9px}.case-tabs button:nth-child(3) span{font-size:8px}#caseDetail{padding:26px 23px;min-height:230px}#caseDetail h3{font-size:22px}.observatory-heading{display:block;margin-bottom:30px}.observatory-heading h2{margin-bottom:23px}.observatory-heading>p{font-size:14px}.article-grid{grid-template-columns:1fr;gap:28px}.article-card{min-height:250px;padding-top:24px}.article-card h3{font-size:27px;margin-top:26px}.article-card p{max-width:400px}.article-link{padding-top:28px}.conversation{padding:92px 24px 115px;min-height:650px}.conversation-content h2{font-size:41px}.conversation-content>p:not(.eyebrow){font-size:14px}.earth-video{object-position:63%}.conversation:after{background:linear-gradient(90deg,#03070bdd,rgba(3,7,11,.65),transparent)}.site-footer{padding:47px 24px 95px}.footer-top{display:block}.footer-wordmark{font-size:31px}.footer-top p{font-size:9px;margin-top:18px;max-width:none}.footer-bottom{display:grid;gap:17px;font-size:10px;margin-top:27px;padding-top:22px}.preview-tools{left:12px;bottom:10px;max-width:calc(100% - 24px)}.preview-tools button{font-size:9px;padding:7px 9px;gap:11px}.dialog-inner{padding:15px 25px 35px}.dialog-inner h2{font-size:33px}.dialog-close{padding:15px 20px}.dialog-copy p{font-size:15px}.brief-dialog input,.brief-dialog select,.brief-dialog textarea{font-size:16px}.brief-actions .button{font-size:12px}}
@media(max-width:370px){.hero h1{font-size:32px}.hero-copy{padding-left:20px;padding-right:20px}.hero{min-height:750px}.hero .eyebrow{font-size:8px}.gravity-copy h2{font-size:31px}.gravity-copy>p:last-child{font-size:12px}.chapter-tabs{gap:8px}.case-tabs{gap:4px}.case-tabs button span{font-size:8px}.preview-tools button{gap:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.js-ready .reveal{opacity:1;transform:none}.hero-image{transform:none!important}.gravity-scroll{height:auto;min-height:0}.gravity-sticky{position:relative;min-height:850px}.spiral-trace,.map-light{display:none}.gravity-copy{top:16%}}

/* Keep the concept controls clear of the narrative navigation. */
@media(min-width:761px){.hero-bottom{bottom:72px}}
@media(max-width:760px){.hero-image{background-position:75% center}.hero-bottom{bottom:80px}.orbit-visual{top:38%;height:43%}.chapter-tabs{bottom:10.5%}}

/* Public launch refinements */
.contact-email{display:block;width:fit-content;margin:24px auto 0;color:#bce6ff;font-size:14px;text-underline-offset:5px}.contact-email:hover{text-decoration:underline}.case-read-link{display:inline-flex;margin-top:26px;align-items:center;gap:20px}.brief-actions{flex-wrap:wrap}.brief-actions .button{white-space:normal}
@media(min-width:761px) and (max-width:1180px){.site-header nav a:nth-child(3){display:inline}.site-header nav{gap:22px}}
@media(max-width:760px){.gravity-sticky{height:100svh;min-height:0}.gravity-copy{top:13%}.orbit-visual{top:43%;height:38%}.chapter-tabs{bottom:7%;}.gravity-copy h2{font-size:clamp(27px,4.6vh,35px)}.contact-email{font-size:13px}.preview-tools{bottom:12px}}
@media(max-width:760px) and (max-height:700px){.gravity-copy{top:12%}.gravity-copy .eyebrow{font-size:8px;margin-bottom:14px}.chapter-number{margin-bottom:14px}.gravity-copy h2{font-size:27px}.gravity-copy>p:last-child{font-size:12px;line-height:1.6;max-width:90%}.orbit-visual{top:46%;height:31%}.chapter-tabs{bottom:8%}}
@media(prefers-reduced-motion:reduce) and (max-width:760px){.gravity-sticky{height:780px;min-height:0}.gravity-copy{top:10%}.orbit-visual{top:39%;height:38%}.chapter-tabs{bottom:8%}}

@media(max-width:760px){.orbit-visual{min-height:0}.gravity-svg{min-height:0;max-height:100%;align-self:stretch}}

/* Responsive refinement: intrinsic layouts, touch input and notched screens. */
:root{--safe-left:env(safe-area-inset-left,0px);--safe-right:env(safe-area-inset-right,0px);--safe-bottom:env(safe-area-inset-bottom,0px)}
body.modal-open{position:fixed;width:100%;left:0;right:0}
.site-header{padding-left:max(3.2vw,var(--safe-left));padding-right:max(3.2vw,var(--safe-right))}
.section-wrap{padding-left:max(7vw,var(--safe-left));padding-right:max(7vw,var(--safe-right))}
.hero-copy,.engine-card,.asset-details,.case-intro,.case-explorer,.article-card{min-width:0}
h1,h2,h3,.contact-email,.text-button{overflow-wrap:break-word}
button,.button,.text-button{min-height:44px}
.contact-email{min-height:44px;display:flex;align-items:center}
.conversation-content .contact-email{margin-left:0;margin-right:0}
.preview-tools{left:max(12px,var(--safe-left));bottom:calc(12px + var(--safe-bottom));max-width:calc(100% - 24px - var(--safe-left) - var(--safe-right))}
.preview-tools button{min-height:44px;font-size:11px;padding:10px 12px;gap:12px}
.site-footer{padding-bottom:calc(105px + var(--safe-bottom))}
.hero{height:auto;min-height:max(790px,100svh);max-height:none}
.hero-copy{padding-bottom:190px}
.hero-bottom{bottom:calc(80px + var(--safe-bottom))}
.hero h1{overflow-wrap:anywhere}
#nav a{display:flex;align-items:center;min-height:44px}
#nav .nav-cta{flex-shrink:0}
dialog{position:fixed;inset:auto;top:calc(var(--dialog-viewport-top,0px) + 12px);left:50%;transform:translateX(-50%);margin:0;width:min(760px,calc(100% - 24px - var(--safe-left) - var(--safe-right)));max-height:calc(var(--dialog-viewport-height,100dvh) - 24px - var(--safe-bottom));overscroll-behavior:contain;-webkit-overflow-scrolling:touch;scroll-padding-block:70px 24px}
.dialog-inner{overflow-wrap:anywhere}
.brief-dialog input,.brief-dialog select,.brief-dialog textarea{font-size:16px;min-width:0;max-width:100%}
.brief-dialog select{padding-right:26px}
.brief-actions{gap:18px}
@media(max-width:1024px){
  html{scroll-padding-top:90px}
  .site-header,.site-header.is-scrolled{height:76px;padding:0 max(24px,var(--safe-right)) 0 max(24px,var(--safe-left));gap:20px}
  .wordmark{font-size:clamp(22px,3.4vw,30px)}
  .menu-toggle{display:flex;align-items:center;justify-content:space-between;gap:22px;background:none;border:0;padding:10px 0 10px 12px;font-size:14px;min-width:88px;min-height:48px}
  .site-header nav{display:none;position:absolute;top:76px;left:0;right:0;padding:20px max(24px,var(--safe-right)) 28px max(24px,var(--safe-left));background:#061018;border-bottom:1px solid var(--line);max-height:calc(100dvh - 76px - var(--safe-bottom));overflow-y:auto;overscroll-behavior:contain}
  .site-header nav.is-open{display:flex;flex-direction:column;align-items:stretch;gap:12px}
  .site-header nav a,.site-header nav a:nth-child(3){display:flex;font-size:16px;min-height:48px;flex-shrink:0}
  .nav-cta{justify-content:space-between;font-size:15px;padding:14px}
  .section-wrap{padding-left:max(24px,var(--safe-left));padding-right:max(24px,var(--safe-right))}
  .engine-card{padding-right:22px}.engine-card+.engine-card{padding-left:22px}
  .case-body{grid-template-columns:1fr;gap:32px}
  .case-top{gap:24px}.case-brand{flex-shrink:0}
  .case-tabs button span{font-size:12px}
  .asset-tabs button{min-height:48px}
  .flywheel-panel{grid-template-columns:1fr;gap:20px}
  .flywheel-map{min-height:0;height:auto;aspect-ratio:640/570;width:min(100%,450px);margin:auto}
  .map-destination{right:0}
  .asset-details{max-width:650px}
  .hero-copy{padding-bottom:190px}
}
@media(max-width:700px){
  .engine-grid,.article-grid{grid-template-columns:1fr}
  .engine-card,.engine-card+.engine-card{padding:31px 0;border-left:0}
  .engine-card+.engine-card{border-top:1px solid var(--line)}
  .hero{min-height:100svh}
  .hero-copy{padding:140px max(24px,var(--safe-right)) 190px max(24px,var(--safe-left))}
  .hero-bottom{left:max(24px,var(--safe-left));right:max(24px,var(--safe-right))}
  .hero h1{font-size:clamp(30px,8.2vw,56px)}
  .case-tabs{gap:8px}
  .case-tabs button,.case-tabs button span,.case-tabs button:nth-child(3) span{font-size:11px}
  .case-tabs button{padding:14px 4px;text-align:center;overflow-wrap:anywhere;min-width:0}
  .contact-email{font-size:14px}
  .dialog-inner{padding:16px 24px 32px}
  .brief-actions .button{width:100%;font-size:14px}
  .preview-tools button{font-size:11px}
}
/* Compact screens use a chapter explorer in normal document flow.
   The orbital visual still animates; chapter content can grow without clipping. */
@media(max-width:1024px),(max-height:600px),(prefers-reduced-motion:reduce){
  .gravity-scroll{height:auto;min-height:0}
  .gravity-sticky{position:relative;top:auto;height:auto;min-height:0;overflow:visible;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);align-items:center;gap:32px;padding:110px max(5vw,var(--safe-right)) calc(96px + var(--safe-bottom)) max(5vw,var(--safe-left))}
  .gravity-copy{position:relative;inset:auto;width:auto;min-width:0;grid-column:1}
  .gravity-copy h2{font-size:clamp(30px,4.3vw,54px);max-width:none}
  .gravity-copy>p:last-child{font-size:16px;line-height:1.8;max-width:460px}
  .gravity-copy .eyebrow{font-size:11px}
  .chapter-number{margin:22px 0 18px}
  .orbit-visual{position:relative;inset:auto;grid-column:2;width:100%;height:auto;aspect-ratio:1;min-height:0;max-width:540px;justify-self:center}
  .gravity-svg{width:100%;height:100%;min-height:0;max-height:100%;overflow:visible}
  .chapter-tabs{position:relative;inset:auto;grid-column:1/-1;gap:16px;margin:0;min-width:0}
  .chapter-tabs button{font-size:13px;min-height:64px;padding:14px 4px 12px;min-width:0}
  .chapter-tabs button span{display:block;font-size:11px;margin:0 0 6px}
}
@media(max-width:700px){
  .gravity-sticky{grid-template-columns:minmax(0,1fr);gap:20px;padding:80px max(24px,var(--safe-right)) calc(90px + var(--safe-bottom)) max(24px,var(--safe-left))}
  .gravity-copy,.orbit-visual{grid-column:1}
  .gravity-copy h2{font-size:clamp(30px,7.5vw,40px)}
  .gravity-copy>p:last-child{font-size:15px}
  .orbit-visual{width:min(100%,420px)}
}
@media(max-width:480px){.chapter-tabs{grid-template-columns:1fr 1fr;gap:10px 20px}.case-tabs{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.case-tabs button{min-height:68px}.case-tabs button span{margin-top:10px}}
@media(max-height:600px){
  .site-header,.site-header.is-scrolled{height:64px}
  .site-header nav{top:64px;max-height:calc(100dvh - 64px - var(--safe-bottom))}
  .hero-copy{padding-top:120px}
}
.wordmark,.footer-wordmark,.scroll-cue,.footer-bottom a{display:inline-flex;align-items:center;min-height:44px}

.gravity-copy{scroll-margin-top:16px}
/* Let enlarged text reflow without pushing controls beyond the viewport. */
.contact-email,.footer-wordmark{display:inline-block;max-width:100%;overflow-wrap:anywhere;white-space:normal}
.preview-tools button{min-width:0;overflow-wrap:anywhere}
@media(max-width:1024px){
  .site-header,.site-header.is-scrolled{height:auto;min-height:76px;padding-top:8px;padding-bottom:8px}
  .wordmark{min-width:0;white-space:normal;overflow-wrap:anywhere;line-height:1.15}
  .menu-toggle{flex-shrink:0;min-width:max-content;line-height:1.2}
  .site-header nav{top:100%}
}
@media(max-height:600px){.site-header,.site-header.is-scrolled{min-height:64px}}