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p{margin:0;color:#bdc5bb;font-size:.72rem;line-height:1.7}.riverbend__studies{display:grid;gap:110px;margin-top:110px}.riverbend__stack{display:grid;grid-template-columns:.65fr 1.35fr;gap:70px;margin-top:80px;padding-top:70px;border-top:1px solid var(--rb-line)}.riverbend__stack h3{max-width:500px;margin:0;font:600 2.6rem/1 var(--display);text-transform:uppercase}.riverbend__stack dl{display:grid;grid-template-columns:1fr 1fr;margin:0;border-top:1px solid var(--rb-line);border-left:1px solid var(--rb-line)}.riverbend__stack dl div{display:flex;flex-direction:column;gap:7px;padding:22px;border-right:1px solid var(--rb-line);border-bottom:1px solid var(--rb-line)}.riverbend__stack dt{color:var(--rb-rust);font:600 .52rem var(--mono);letter-spacing:.08em;text-transform:uppercase}.riverbend__stack dd{margin:0;font:600 1.02rem 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#3a3f41;background:transparent;color:#b6b8b8;cursor:pointer}.lightbox button:hover{border-color:var(--signal);color:#fff}.lightbox__image{display:grid;max-height:calc(100vh - 215px);place-items:center;overflow:hidden;background:#050607}.lightbox__image img{width:100%;max-height:calc(100vh - 215px);object-fit:contain}.lightbox__video{aspect-ratio:16 / 9;background:#050607}.lightbox__video iframe{display:block;width:100%;height:100%;border:0}.video-lightbox__panel{width:min(1280px,96vw)}.video-lightbox__meta span:last-child{min-width:92px}.lightbox__footer{border-top:1px solid var(--line)}.lightbox__footer>p{max-width:850px;margin:0;color:#8e9293;font-size:.7rem;line-height:1.55}.lightbox__footer>div{display:flex;gap:12px;align-items:center}.lightbox__footer span{min-width:52px;color:#828687;font:500 .58rem var(--mono);text-align:center}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@media (max-width: 1150px){.hero{grid-template-columns:1fr;padding-block:80px}.hero__copy{max-width:800px}.hero__media{max-width:940px}.model-grid{grid-template-columns:1fr 1fr}.flow{grid-template-columns:1.2fr .2fr .7fr}.flow__outputs{grid-column:3;margin-top:20px}.flow__arrow:nth-of-type(2){display:none}.appliance{grid-template-columns:1fr .75fr;gap:50px}}@media (max-width: 900px){.site-header{align-items:center;min-height:68px;padding-inline:20px}.brand{padding-top:0}.menu-toggle{display:block}.site-nav{position:absolute;top:68px;right:0;left:0;display:none;align-items:stretch;min-width:0;padding:10px 20px 20px;border-bottom:1px solid var(--line-light);background:#0b0d0f}.site-nav--open{display:flex;flex-direction:column;gap:0}.project-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;width:100%;padding:0 0 12px}.project-nav__link{justify-content:center;min-height:52px;padding:13px 10px;border-color:var(--line-light)}.sub-nav{display:grid;grid-template-columns:1fr 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h1{font-size:clamp(3.25rem,15vw,4rem);letter-spacing:-.055em}.hero__lead{margin-top:30px}.hero__actions{align-items:stretch;flex-direction:column}.button{width:100%}.hero__specs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.hero__specs dt{font-size:1.05rem}.hero figcaption{align-items:flex-start;flex-direction:column}.signal-strip{justify-content:flex-start;overflow-x:auto}.statement,.themes,.sources,.history{padding-block:90px}.statement h2,.section-heading h2,.appliance h2,.history h2,.roadmap h2{font-size:clamp(2.9rem,15vw,4.5rem)}.theme-card,.theme-card:nth-child(n){grid-column:1 / -1}.theme-card__meta{padding-bottom:20px}.system,.validation{padding:90px 16px}.model-grid{grid-template-columns:1fr}.model-grid article{min-height:245px}.config-panel{margin-top:48px}.config-panel__intro{padding:34px 25px}.config-list li{grid-template-columns:32px 1fr;gap:8px;min-height:95px;padding:18px}.config-list small{grid-column:2}.flow{display:block;margin-block:50px}.flow__sources{grid-template-columns:1fr}.flow__arrow{height:70px;transform:rotate(90deg)}.flow__outputs{margin-top:0}.source-table__head{display:none}.source-table__row{grid-template-columns:1fr;gap:8px}.source-table__row span:last-child{color:#686d6f}.state-demo{padding:24px 16px}.state-demo>div{grid-template-columns:65px 1fr;padding-block:12px}.state-demo b{display:none}.appliance{padding-block:90px}.check-list{grid-template-columns:1fr}.appliance__diagram{padding:18px}.stack-layer{padding:20px}.status-card header{grid-template-columns:auto 1fr}.status-card header small{display:none}.safety-note{grid-template-columns:1fr}.roadmap{gap:35px;padding-block:75px}.riverbend{padding:90px 16px}.riverbend__header,.riverbend__lead,.riverbend__evidence,.riverbend__m1,.riverbend__stack{grid-template-columns:1fr}.riverbend__header{gap:38px}.riverbend__header h2{font-size:clamp(4rem,21vw,6.4rem)}.riverbend__status{min-width:0}.riverbend__lead{gap:28px;padding-block:46px}.riverbend__intro{font-size:2.65rem}.riverbend__study>header{grid-template-columns:1fr;gap:20px}.riverbend__study>header a{justify-self:start}.riverbend__embed iframe{min-height:560px}.riverbend__study>footer{flex-direction:column}.riverbend__pillars{grid-template-columns:1fr;margin-top:55px}.riverbend__pillars article{min-height:235px}.riverbend__evidence{margin-top:60px}.riverbend__m1{gap:18px}.riverbend__studies{gap:75px;margin-top:65px}.riverbend__stack{margin-top:55px;padding-top:55px}.riverbend__stack dl{grid-template-columns:1fr}.riverbend__footer{align-items:flex-start;flex-direction:column;gap:28px;margin-top:60px}.site-footer__links{display:grid;grid-template-columns:1fr 1fr;gap:18px}.lightbox{padding:0}.lightbox__panel{width:100vw;max-height:100vh;border:0}.lightbox__image,.lightbox__image img{max-height:calc(100vh - 260px)}.lightbox__footer{align-items:flex-start;flex-direction:column}}