/* Immersive enterprise homepage — architectural scale, cinematic depth, compact type. */
.immersive-home{--surface:#071923;--aqua:#62e3dd;--ivory:#f1f2ed;background:#04131f}
.immersive-home .site-header{height:86px;background:linear-gradient(180deg,rgba(2,12,18,.8),rgba(2,12,18,.05));border-bottom-color:rgba(255,255,255,.1)}
.immersive-home .site-header.is-scrolled{height:72px;background:rgba(3,16,24,.9)}
.immersive-home .header-inner{grid-template-columns:210px 1fr auto}.immersive-home .logo{width:190px}.immersive-home .nav{gap:27px}.immersive-home .nav a{font-size:12px}
.cinematic-hero{position:relative;min-height:940px;display:flex;align-items:flex-end;overflow:hidden;isolation:isolate;background:#03111a}
.hero-architecture{position:absolute;z-index:0;inset:-8%;background:#061925;transform:scale(1.08);will-change:transform}
.hero-architecture picture,.hero-architecture>img{position:absolute;inset:0;width:100%;height:100%}
.hero-architecture img{object-fit:cover;object-position:center 52%;}
.hero-atmosphere{position:absolute;z-index:1;inset:0;background:radial-gradient(circle at 73% 28%,rgba(97,229,221,.12),transparent 20%),linear-gradient(90deg,rgba(2,12,18,.88) 0%,rgba(3,18,26,.64) 42%,rgba(3,16,24,.12) 77%),linear-gradient(0deg,rgba(2,12,18,.84) 0%,transparent 46%,rgba(2,12,18,.28) 100%)}
.hero-grid{position:absolute;z-index:2;inset:0;opacity:.2;background-image:linear-gradient(rgba(166,239,234,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(166,239,234,.13) 1px,transparent 1px);background-size:12.5vw 12.5vw;mask-image:linear-gradient(90deg,#000,transparent 72%)}
.cinematic-hero::after{position:absolute;inset:0;z-index:3;content:"";pointer-events:none;box-shadow:inset 0 -140px 120px rgba(3,16,24,.52)}
.cinematic-hero-inner{position:relative;z-index:4;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(310px,.56fr);gap:9vw;align-items:end;padding:210px 0 126px}
.hero-statement{max-width:760px}.hero-statement h1{max-width:760px;margin:0 0 27px;font-size:clamp(48px,5.35vw,76px);font-weight:480;line-height:1.12;letter-spacing:-.055em;text-wrap:balance}.hero-statement h1 em{font-style:normal;color:#c8f8f2;font-weight:420}
.hero-statement>p:not(.eyebrow){max-width:610px;margin:0;color:rgba(239,249,248,.74);font-size:16px;line-height:1.9}.hero-statement .hero-actions{margin-top:37px}
.immersive-home .btn{min-height:48px;padding:0 24px;border-radius:0;font-size:11px;letter-spacing:.08em}.immersive-home .btn.primary{color:#05171d;background:var(--aqua);border-color:var(--aqua)}.immersive-home .btn.primary:hover{color:#05171d;background:#d4fff8;border-color:#d4fff8;box-shadow:0 14px 34px rgba(98,227,221,.2)}.immersive-home .btn.ghost{border-color:rgba(255,255,255,.34);background:rgba(2,14,21,.2);backdrop-filter:blur(10px)}
.hero-brief{align-self:end;margin-bottom:2px;border-top:1px solid rgba(198,239,235,.3);border-bottom:1px solid rgba(198,239,235,.18);backdrop-filter:blur(12px)}.hero-brief-head{display:flex;justify-content:space-between;padding:15px 0;color:#90d8d4;font-size:9px;letter-spacing:.16em}.hero-brief-head b{font-weight:500}
.hero-brief>a{min-height:69px;display:grid;grid-template-columns:28px 1fr;grid-template-rows:auto auto;column-gap:13px;align-content:center;border-top:1px solid rgba(255,255,255,.11);transition:padding .3s var(--ease),background .3s var(--ease)}.hero-brief>a:hover{padding-left:12px;background:rgba(101,228,221,.08)}.hero-brief>a>span{grid-row:1/3;color:var(--aqua);font-size:9px;padding-top:4px}.hero-brief strong{font-size:14px;font-weight:500;letter-spacing:.02em}.hero-brief small{margin-top:5px;color:rgba(255,255,255,.49);font-size:10px}
.hero-coordinate{position:absolute;z-index:5;right:42px;top:50%;display:flex;align-items:center;gap:11px;color:rgba(255,255,255,.42);font-size:8px;letter-spacing:.15em;transform:rotate(90deg) translateX(50%);transform-origin:right center}.hero-coordinate i{width:38px;height:1px;background:rgba(113,226,220,.55)}
.cinematic-hero .hero-scroll{z-index:5;left:auto;right:max(5vw,72px);bottom:32px;display:flex;align-items:center;gap:14px;color:rgba(255,255,255,.5);font-size:8px;letter-spacing:.16em}.cinematic-hero .hero-scroll i{position:relative;width:54px;height:1px;background:rgba(255,255,255,.25)}.cinematic-hero .hero-scroll i::after{position:absolute;left:0;top:-1px;width:20px;height:3px;content:"";background:var(--aqua);animation:hero-line 2.2s var(--ease) infinite}
@keyframes hero-line{0%{transform:translateX(0);opacity:0}25%{opacity:1}70%{opacity:1}100%{transform:translateX(34px);opacity:0}}

.editorial-canvas{padding:145px 0 165px;color:#102c39;background:var(--ivory)}.editorial-canvas-grid{display:grid;grid-template-columns:90px 1.05fr .95fr;grid-template-rows:auto auto;gap:66px 7vw;align-items:start}.editorial-number{grid-row:1/3;color:#0b6c78;font:400 12px/1 "Avenir Next",sans-serif;letter-spacing:.18em;writing-mode:vertical-rl}.editorial-number::after{display:inline-block;width:1px;height:84px;margin-top:17px;content:"";background:#9eb6b5}.editorial-heading{grid-column:2/4}
.editorial-heading h2,.scene-lab-head h2,.system-copy h2,.digital-twin-head h2,.evidence-head h2{max-width:820px;margin:18px 0 0;font-size:clamp(38px,4.25vw,61px);font-weight:470;line-height:1.18;letter-spacing:-.05em;text-wrap:balance}.editorial-image{grid-column:2;position:relative;min-height:520px;overflow:hidden;background:#0a2632;transform-style:preserve-3d;transition:transform .45s var(--ease),box-shadow .45s var(--ease)}.editorial-image img{position:absolute;inset:-3%;width:106%;height:106%;object-fit:cover;filter:saturate(.78) contrast(1.04);transition:transform .8s var(--ease)}.editorial-image:hover img{transform:scale(1.035)}.editorial-image::after{position:absolute;inset:0;content:"";background:linear-gradient(0deg,rgba(3,17,25,.72),transparent 43%)}.editorial-image>span{position:absolute;z-index:2;left:25px;bottom:23px;color:#e5f8f5;font-size:9px;letter-spacing:.17em}.editorial-story{grid-column:3;padding:25px 3vw 0 0;color:#536d76;font-size:14px;line-height:1.95}.editorial-story p{margin-bottom:24px}.editorial-story .lead-copy{color:#143b48;font-size:19px;line-height:1.78}

.scene-lab{padding:150px 0;background:radial-gradient(circle at 85% 4%,rgba(50,147,153,.17),transparent 28%),#061821}.scene-lab-head,.digital-twin-head{display:grid;grid-template-columns:1.15fr .65fr;gap:10vw;align-items:end;margin-bottom:67px}.scene-lab-head>p,.digital-twin-head>div>p{margin:0;color:rgba(226,244,243,.58);font-size:14px;line-height:1.9}
.scene-console{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:710px;border:1px solid rgba(166,233,229,.18);background:#04131b;box-shadow:0 40px 100px rgba(0,0,0,.28)}.scene-nav{display:flex;flex-direction:column;border-right:1px solid rgba(166,233,229,.16)}.scene-nav button{position:relative;min-height:25%;display:grid;grid-template-columns:32px 1fr;grid-template-rows:auto auto;column-gap:12px;align-content:center;padding:28px 22px;border:0;border-bottom:1px solid rgba(166,233,229,.13);color:#dcefee;background:#071d27;text-align:left;cursor:pointer;transition:background .35s var(--ease),padding .35s var(--ease)}.scene-nav button::after{position:absolute;left:-1px;top:18%;bottom:18%;width:2px;content:"";background:var(--aqua);transform:scaleY(0);transition:transform .35s var(--ease)}.scene-nav button:hover,.scene-nav button.is-active{padding-left:29px;background:#0b2a35}.scene-nav button.is-active::after{transform:scaleY(1)}.scene-nav span{grid-row:1/3;color:var(--aqua);font-size:9px}.scene-nav b{font-size:17px;font-weight:500}.scene-nav small{margin-top:8px;color:#69838a;font-size:8px;letter-spacing:.11em}
.scene-viewport{position:relative;min-width:0;overflow:hidden;transform-style:preserve-3d;transition:transform .55s var(--ease)}.scene-viewport>img{position:absolute;z-index:0;inset:-2%;width:104%;height:104%;object-fit:cover;filter:brightness(.82) saturate(.94);transition:opacity .32s var(--ease),transform 1.2s var(--ease)}.scene-viewport.is-changing>img{opacity:.25;transform:scale(1.04)}.scene-viewport::after{position:absolute;z-index:1;inset:0;content:"";background:linear-gradient(90deg,rgba(2,14,20,.12),transparent 60%),linear-gradient(0deg,rgba(2,14,20,.82),transparent 58%);pointer-events:none}.scene-scan{position:absolute;z-index:2;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--aqua),transparent);box-shadow:0 0 20px var(--aqua);opacity:.5;animation:scene-scan 6s linear infinite}
@keyframes scene-scan{0%{transform:translateY(0);opacity:0}12%{opacity:.55}88%{opacity:.3}100%{transform:translateY(710px);opacity:0}}
.scene-hud-top{position:absolute;z-index:3;left:25px;right:25px;top:23px;display:flex;justify-content:space-between;color:#b6dad8;font-size:8px;letter-spacing:.15em}.scene-hud-top span{padding:8px 10px;border:1px solid rgba(124,229,223,.28);background:rgba(3,16,23,.5);backdrop-filter:blur(10px)}.scene-hud-top b{font-weight:500}.scene-hotspot{position:absolute;z-index:3;display:flex;align-items:center;gap:9px;color:#e4fbf9;font-size:9px;letter-spacing:.08em;transition:opacity .25s}.scene-hotspot i{position:relative;width:10px;height:10px;border:1px solid var(--aqua);border-radius:50%;background:rgba(99,228,220,.24);box-shadow:0 0 0 7px rgba(99,228,220,.09),0 0 18px rgba(99,228,220,.75)}.scene-hotspot i::after{position:absolute;left:4px;top:9px;width:1px;height:48px;content:"";background:linear-gradient(var(--aqua),transparent)}.hotspot-a{left:31%;top:29%}.hotspot-b{right:20%;top:39%}
.scene-caption{position:absolute;z-index:3;left:38px;right:38px;bottom:34px;max-width:660px}.scene-caption>p:first-child{margin:0 0 12px;color:var(--aqua);font-size:9px;letter-spacing:.18em}.scene-caption h3{max-width:650px;margin:0 0 13px;font-size:clamp(29px,3vw,43px);font-weight:470;line-height:1.19;letter-spacing:-.045em;text-wrap:balance}.scene-caption>p:not(:first-child){max-width:620px;margin:0;color:rgba(238,250,249,.68);font-size:13px;line-height:1.8}.scene-caption a{display:inline-flex;gap:9px;margin-top:19px;color:#cbf8f3;font-size:11px;letter-spacing:.05em}

.system-architecture{padding:130px 0 145px;overflow:hidden;background:#071d27}.system-architecture-grid{display:grid;grid-template-columns:.65fr 1.35fr;gap:6vw;align-items:center}.system-copy{max-width:470px}.system-copy>p:not(.section-tag){max-width:430px;margin:24px 0 0;color:rgba(227,244,242,.55);font-size:14px;line-height:1.9}.system-orbit{position:relative;width:min(100%,680px);aspect-ratio:1;margin-left:auto;border-radius:50%;background:radial-gradient(circle,rgba(73,196,190,.13),rgba(4,20,28,.1) 53%,transparent 54%)}.system-orbit svg{position:absolute;inset:4%;width:92%;height:92%;fill:none;stroke:rgba(111,226,219,.22);stroke-width:1}.system-orbit svg path{stroke-dasharray:5 12;animation:orbit-dash 18s linear infinite}@keyframes orbit-dash{to{stroke-dashoffset:-170}}
.orbit-core{position:absolute;z-index:2;left:50%;top:50%;width:190px;height:190px;display:grid;place-content:center;text-align:center;border:1px solid rgba(119,232,225,.37);border-radius:50%;background:radial-gradient(circle,rgba(36,125,128,.3),rgba(4,23,31,.94) 66%);transform:translate(-50%,-50%);box-shadow:0 0 90px rgba(80,211,204,.12),inset 0 0 35px rgba(80,211,204,.08)}.orbit-core small{margin-bottom:11px;color:var(--aqua);font-size:8px;letter-spacing:.2em}.orbit-core strong{font-size:21px;font-weight:450;line-height:1.4}
.orbit-node{position:absolute;z-index:3;width:140px;min-height:94px;padding:18px;border:1px solid rgba(160,232,228,.24);background:rgba(7,31,41,.87);backdrop-filter:blur(12px);transition:transform .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease)}.orbit-node:hover{z-index:4;border-color:var(--aqua);background:#0c3541;transform:translateY(-5px)}.orbit-node span{display:block;color:var(--aqua);font-size:8px}.orbit-node b{display:block;margin:14px 0 5px;font-size:14px;font-weight:500}.orbit-node small{color:#6f9196;font-size:8px;letter-spacing:.12em}.node-power{left:4%;top:21%}.node-hydrogen{right:2%;top:16%}.node-bio{left:10%;bottom:13%}.node-digital{right:4%;bottom:19%}

.digital-twin-section{padding:145px 0;background:radial-gradient(circle at 70% 0,rgba(70,166,167,.14),transparent 25%),#03121a}.digital-twin-head>div:last-child{max-width:450px}.digital-twin-head .text-link{margin-top:18px}.twin-frame{overflow:hidden;border:1px solid rgba(159,232,228,.2);background:#061823;box-shadow:0 45px 110px rgba(0,0,0,.38)}.twin-frame-bar{height:50px;display:flex;justify-content:space-between;align-items:center;padding:0 20px;border-bottom:1px solid rgba(159,232,228,.17);color:#81aaa9;font-size:8px;letter-spacing:.14em}.twin-frame-bar span{display:flex;align-items:center;gap:9px;color:#bce8e4}.twin-frame-bar i{width:7px;height:7px;border-radius:50%;background:var(--aqua);box-shadow:0 0 13px var(--aqua)}.twin-frame-bar b{font-weight:500}.twin-frame iframe{display:block;width:100%;height:720px;border:0;background:#03111d}
.blueprint-stage{position:relative;min-height:660px;overflow:hidden;background:#02070d}.blueprint-stage>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;filter:saturate(1.04) contrast(1.08);transition:opacity .34s var(--ease),transform .75s var(--ease)}.blueprint-stage.is-changing>img{opacity:.35;transform:scale(1.035)}.blueprint-stage::after{position:absolute;inset:0;content:"";pointer-events:none;background:radial-gradient(circle at 74% 28%,rgba(41,142,255,.12),transparent 30%),linear-gradient(90deg,rgba(1,8,16,.7),transparent 58%),linear-gradient(0deg,rgba(1,8,16,.82),transparent 60%)}.blueprint-overlay{position:absolute;z-index:1;left:clamp(24px,4vw,58px);bottom:clamp(26px,4vw,52px);width:min(560px,calc(100% - 48px))}.blueprint-overlay p{margin:0;color:rgba(214,247,255,.7);font-size:12px;line-height:1.75}.blueprint-overlay>p:first-child{margin-bottom:13px;color:#7fe7ff;font-size:9px;letter-spacing:.2em}.blueprint-overlay h3{margin:0 0 12px;color:#fff;font-size:clamp(28px,3.2vw,45px);font-weight:460;line-height:1.2;letter-spacing:-.045em;text-wrap:balance}.blueprint-controls{display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid rgba(159,232,228,.17)}.blueprint-controls button{position:relative;min-height:72px;padding:12px;border:0;border-right:1px solid rgba(159,232,228,.13);background:#061923;color:#a6c5cc;font-size:12px;text-align:left;cursor:pointer;transition:background .3s var(--ease),color .3s var(--ease)}.blueprint-controls button:last-child{border-right:0}.blueprint-controls button::after{position:absolute;right:0;bottom:0;left:0;height:2px;content:"";background:#76ebff;transform:scaleX(0);transition:transform .3s var(--ease)}.blueprint-controls button span{display:block;margin-bottom:7px;color:#578195;font-size:8px;letter-spacing:.12em}.blueprint-controls button:hover,.blueprint-controls button.is-active{background:#0b2a3a;color:#e2faff}.blueprint-controls button.is-active::after{transform:scaleX(1)}.blueprint-controls button.is-active span{color:#7fe7ff}.twin-launch{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:28px 30px;background:linear-gradient(110deg,#04141e,#08212d)}.twin-launch>div{display:grid;gap:7px}.twin-launch span{color:#70cbd1;font-size:9px;letter-spacing:.16em}.twin-launch strong{font-size:16px;font-weight:500}.twin-launch small{color:#7f9da5;font-size:12px}.twin-frame iframe[hidden]{display:none}.twin-frame.is-twin-loaded .twin-launch{display:none}.twin-frame.is-twin-loaded iframe{height:720px}

.evidence-section{padding:145px 0 155px;color:#102d39;background:#eef0eb}.evidence-head{display:grid;grid-template-columns:150px 1fr auto;gap:35px;align-items:end;margin-bottom:58px}.evidence-head h2{max-width:800px;font-size:clamp(36px,3.8vw,55px)}.evidence-grid{display:grid;grid-template-columns:1.28fr .72fr;gap:18px}.evidence-feature{position:relative;min-height:610px;display:flex;align-items:flex-end;overflow:hidden;background:#09202b}.evidence-secondary{min-height:530px;margin-top:80px}.evidence-feature>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.72) brightness(.7);transition:transform .9s var(--ease),filter .5s var(--ease)}.evidence-feature:hover>img{transform:scale(1.035);filter:saturate(.88) brightness(.73)}.evidence-feature::after{position:absolute;inset:0;content:"";background:linear-gradient(0deg,rgba(3,16,22,.96),transparent 65%)}.evidence-feature>div{position:relative;z-index:2;padding:38px;color:#fff}.evidence-feature span{color:var(--aqua);font-size:8px;letter-spacing:.18em}.evidence-feature h3{max-width:620px;margin:18px 0 28px;font-size:clamp(24px,2.6vw,37px);font-weight:450;line-height:1.38;letter-spacing:-.035em}.evidence-feature b{color:#c9e9e6;font-size:10px;font-weight:500;letter-spacing:.08em}
.architectural-closing{position:relative;min-height:720px;display:flex;align-items:flex-end;overflow:hidden;padding:0;background:#04141d}.closing-image{position:absolute;inset:-7%;background:url('assets/premium-20260911/biomass-facility-1800.jpg') center/cover;filter:brightness(.55) saturate(.74);will-change:transform}.architectural-closing::after{position:absolute;inset:0;content:"";background:linear-gradient(90deg,rgba(2,14,20,.96),rgba(2,14,20,.28) 65%),linear-gradient(0deg,rgba(2,14,20,.86),transparent 58%)}.architectural-closing .closing-inner{position:relative;z-index:2;padding:0 0 95px}.architectural-closing .closing-inner h2{max-width:760px;font-size:clamp(39px,4.5vw,65px)}

@media(max-width:1100px){.cinematic-hero-inner{grid-template-columns:1fr;gap:55px}.hero-brief{max-width:560px;display:grid;grid-template-columns:1fr 1fr}.hero-brief-head{grid-column:1/3}.hero-brief>a:nth-child(even){border-left:1px solid rgba(255,255,255,.11);padding-left:18px}.hero-coordinate{display:none}.editorial-canvas-grid{grid-template-columns:45px 1fr 1fr;gap:50px 4vw}.editorial-image{min-height:450px}.scene-console{grid-template-columns:210px minmax(0,1fr)}.system-architecture-grid{grid-template-columns:1fr}.system-copy{max-width:680px}.system-orbit{margin:30px auto 0}.evidence-head{grid-template-columns:1fr}.evidence-head .text-link{justify-self:start}}
@media(max-width:760px){.immersive-home .site-header,.immersive-home .site-header.is-scrolled{height:72px}.immersive-home .header-inner{grid-template-columns:1fr auto}.immersive-home .logo{width:160px}.cinematic-hero{min-height:810px}.hero-architecture{inset:-4%;background-position:62% center}.hero-atmosphere{background:linear-gradient(90deg,rgba(2,12,18,.94),rgba(3,18,26,.45)),linear-gradient(0deg,rgba(2,12,18,.94),transparent 50%)}.hero-grid{background-size:25vw 25vw}.cinematic-hero-inner{padding:155px 0 80px;gap:42px}.hero-statement h1{font-size:clamp(40px,12.4vw,55px);line-height:1.15;letter-spacing:-.055em}.hero-statement>p:not(.eyebrow){font-size:15px;line-height:1.8}.hero-statement .hero-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}.hero-brief{grid-template-columns:1fr;margin-right:20px}.hero-brief-head{grid-column:1}.hero-brief>a:nth-child(even){border-left:0;padding-left:0}.hero-brief>a:hover{padding-left:8px}.cinematic-hero .hero-scroll{display:none}.editorial-canvas{padding:92px 0 100px}.editorial-canvas-grid{grid-template-columns:1fr;gap:34px}.editorial-number{display:none}.editorial-heading,.editorial-image,.editorial-story{grid-column:1}.editorial-heading h2,.scene-lab-head h2,.system-copy h2,.digital-twin-head h2,.evidence-head h2{font-size:clamp(34px,10vw,45px);line-height:1.22}.editorial-image{min-height:390px}.editorial-story{padding:0}.editorial-story .lead-copy{font-size:18px}.scene-lab{padding:95px 0}.scene-lab-head,.digital-twin-head{grid-template-columns:1fr;gap:28px;margin-bottom:42px}.scene-console{display:block;min-height:0}.scene-nav{display:grid;grid-template-columns:1fr 1fr;border-right:0}.scene-nav button{min-height:100px;padding:17px;border-right:1px solid rgba(166,233,229,.13)}.scene-nav button:hover,.scene-nav button.is-active{padding-left:21px}.scene-viewport{min-height:610px}.scene-caption{left:22px;right:22px;bottom:24px}.scene-caption h3{font-size:30px}.scene-caption>p:not(:first-child){font-size:12px}.scene-hotspot{display:none}.scene-hud-top{left:15px;right:15px}.scene-scan{animation-duration:7s}.system-architecture{padding:90px 0}.system-orbit{width:620px;max-width:none;left:50%;margin:15px 0 0;transform:translateX(-50%) scale(.68)}.digital-twin-section{padding:95px 0}.twin-frame{width:100%}.twin-frame-bar b{display:none}.blueprint-stage{min-height:490px}.blueprint-overlay{bottom:26px}.blueprint-overlay h3{font-size:30px}.blueprint-controls{grid-template-columns:repeat(3,1fr)}.blueprint-controls button:nth-child(3){border-right:0}.blueprint-controls button:nth-child(-n+3){border-bottom:1px solid rgba(159,232,228,.13)}.twin-launch{align-items:flex-start;flex-direction:column;padding:24px 22px}.twin-launch .btn{width:100%}.twin-frame iframe,.twin-frame.is-twin-loaded iframe{height:610px}.evidence-section{padding:92px 0}.evidence-grid{grid-template-columns:1fr}.evidence-feature,.evidence-secondary{min-height:480px;margin:0}.evidence-feature>div{padding:26px}.evidence-feature h3{font-size:27px}.architectural-closing{min-height:620px}.architectural-closing .closing-inner{padding-bottom:70px}}
@media(prefers-reduced-motion:reduce){.hero-architecture,.closing-image,.scene-viewport{transform:none!important}.scene-scan{display:none}.system-orbit svg path{animation:none}.scene-viewport>img{transition:none}}


/* 2026-09-11 visual correction v2: photographic scenes and energy-flow interaction. */
.hero-architecture img{object-position:center 50%;filter:contrast(1.035) saturate(.98)}
.scene-nav button{overflow:hidden;isolation:isolate}
.scene-nav button::before{position:absolute;z-index:-1;inset:0;content:"";opacity:0;background-position:center;background-size:cover;filter:grayscale(.25) brightness(.28);transform:scale(1.04);transition:opacity .4s var(--ease),transform .7s var(--ease)}
.scene-nav button[data-scene="energy"]::before{background-image:url('assets/premium-20260911/resources-sunset-1200.jpg')}
.scene-nav button[data-scene="hydrogen"]::before{background-image:url('assets/photo-20260911-v2/hydrogen-plant-1672.jpg')}
.scene-nav button[data-scene="biomass"]::before{background-image:url('assets/photo-20260911-v2/agriculture-base-900.jpg')}
.scene-nav button[data-scene="compute"]::before{background-image:url('assets/photo-20260911-v2/green-compute-1672.jpg')}
.scene-nav button:hover::before,.scene-nav button.is-active::before{opacity:.34;transform:scale(1)}
.scene-nav button.is-active{box-shadow:inset 0 0 36px rgba(88,231,222,.09)}
.scene-viewport>img{filter:brightness(.76) saturate(.96) contrast(1.035)}
.scene-viewport[data-active-scene="biomass"]>img{object-position:center 48%}
.scene-viewport[data-active-scene="compute"]>img{object-position:center 58%}

.system-architecture{background:radial-gradient(circle at 74% 45%,rgba(41,143,148,.16),transparent 31%),#061923}
.system-orbit{width:min(100%,720px);background:radial-gradient(circle,rgba(50,183,180,.14),rgba(4,20,28,.06) 52%,transparent 53%);box-shadow:inset 0 0 120px rgba(53,188,186,.035)}
.system-orbit::before,.system-orbit::after{position:absolute;inset:9%;border:1px solid rgba(112,229,221,.09);border-radius:50%;content:"";animation:halo-turn 26s linear infinite}
.system-orbit::before{border-top-color:rgba(119,240,231,.56);border-right-color:rgba(119,240,231,.22)}
.system-orbit::after{inset:20%;border-bottom-color:rgba(119,240,231,.42);animation-direction:reverse;animation-duration:19s}
@keyframes halo-turn{to{transform:rotate(360deg)}}
.system-orbit svg{z-index:1;stroke:rgba(111,226,219,.2)}
.system-orbit svg circle{stroke-dasharray:2 9}
.system-orbit svg .flow-path{stroke-width:1.25;stroke-dasharray:7 12;animation:orbit-dash 14s linear infinite}
.system-orbit svg .flow-path-b,.system-orbit svg .flow-path-c{stroke:rgba(107,229,220,.28);stroke-dasharray:3 13;animation-duration:10s}
.orbit-core{width:252px;height:252px;padding:34px;border-color:rgba(119,232,225,.46);background:radial-gradient(circle at 50% 42%,rgba(43,148,146,.35),rgba(4,23,31,.97) 67%);transition:box-shadow .35s var(--ease),border-color .35s var(--ease)}
.orbit-core strong{font-size:26px;line-height:1.25}
.orbit-core p{min-height:58px;margin:14px 0 10px;color:rgba(226,246,244,.58);font-size:11px;line-height:1.65}
.orbit-core a{display:inline-flex;justify-content:center;gap:7px;color:#bdf5ef;font-size:9px;letter-spacing:.08em}
.orbit-core a span{transition:transform .25s var(--ease)}.orbit-core a:hover span{transform:translateX(4px)}
.orbit-node{appearance:none;color:#fff;text-align:left;font-family:inherit;cursor:pointer}
.orbit-node:hover,.orbit-node:focus-visible,.orbit-node.is-active{z-index:4;border-color:var(--aqua);background:linear-gradient(135deg,rgba(13,62,73,.98),rgba(5,30,40,.95));box-shadow:0 15px 42px rgba(0,0,0,.32),inset 0 0 24px rgba(98,227,221,.08);transform:translateY(-5px);outline:0}
.orbit-node.is-active::after{position:absolute;right:13px;top:13px;width:6px;height:6px;border-radius:50%;content:"";background:var(--aqua);box-shadow:0 0 14px var(--aqua)}
.orbit-signal{position:absolute;z-index:2;width:8px;height:8px;border-radius:50%;background:#b8fff8;box-shadow:0 0 8px #80f1ea,0 0 22px #4edbd4;pointer-events:none}
.signal-a{left:20%;top:50%;animation:signal-a 5.5s var(--ease) infinite}.signal-b{right:20%;top:50%;animation:signal-b 6.5s var(--ease) 1.2s infinite}
@keyframes signal-a{0%,100%{transform:translate(0,0);opacity:0}16%{opacity:1}50%{transform:translate(210px,-185px);opacity:1}84%{opacity:1}100%{transform:translate(340px,0);opacity:0}}
@keyframes signal-b{0%,100%{transform:translate(0,0);opacity:0}16%{opacity:1}50%{transform:translate(-195px,185px);opacity:1}84%{opacity:1}100%{transform:translate(-335px,0);opacity:0}}
.orbit-status{position:absolute;left:50%;bottom:2%;display:flex;gap:18px;color:#557f84;font-size:8px;letter-spacing:.16em;transform:translateX(-50%)}.orbit-status span{color:#7fe3de}.orbit-status b{font-weight:500}
.system-orbit.is-pulsing .orbit-core{border-color:#a2fff7;box-shadow:0 0 110px rgba(80,211,204,.23),inset 0 0 42px rgba(80,211,204,.14)}
.closing-image{background-image:url('assets/photo-20260911-v2/hydrogen-plant-1672.jpg');filter:brightness(.5) saturate(.76)}

@media(max-width:760px){.system-orbit{left:auto;width:100%;max-width:520px;aspect-ratio:auto;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:28px auto 0;padding:0;background:none;box-shadow:none;transform:none}.system-orbit::before,.system-orbit::after,.system-orbit>svg,.system-orbit .orbit-signal,.system-orbit .orbit-status{display:none}.system-orbit .orbit-core{position:relative;left:auto;top:auto;grid-column:1/-1;justify-self:center;width:238px;height:238px;padding:30px;transform:none}.system-orbit .orbit-node{position:relative;inset:auto!important;width:100%;min-height:96px;padding:16px;touch-action:manipulation}.system-orbit .orbit-node b{margin:10px 0 4px}.orbit-core strong{font-size:24px}.orbit-core p{font-size:10px}.scene-nav button::before{opacity:.15}.scene-nav button.is-active::before{opacity:.3}}
@media(prefers-reduced-motion:reduce){.system-orbit::before,.system-orbit::after,.orbit-signal{animation:none}.orbit-node:hover,.orbit-node:focus-visible,.orbit-node.is-active{transform:none}}

/* 2026-09-12 chapter navigation: orientation without adding another content block. */
.chapter-rail{position:fixed;z-index:38;right:22px;top:50%;display:grid;gap:7px;transform:translateY(-50%)}
.chapter-rail a{position:relative;width:46px;height:36px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(183,242,246,.16);color:rgba(255,255,255,.66);background:rgba(3,16,24,.68);box-shadow:0 8px 20px rgba(0,0,0,.12);backdrop-filter:blur(12px);transition:width var(--motion-ui) var(--ease-silk),color var(--motion-ui) var(--ease-silk),background var(--motion-ui) var(--ease-silk),border-color var(--motion-ui) var(--ease-silk)}
.chapter-rail span{font-size:8px;letter-spacing:.15em}.chapter-rail b{position:absolute;right:40px;width:86px;padding:7px 9px;color:rgba(255,255,255,.9);background:rgba(3,16,24,.76);font-size:9px;font-weight:500;letter-spacing:.08em;text-align:right;opacity:0;transform:translateX(8px);pointer-events:none;transition:opacity var(--motion-ui) var(--ease-silk),transform var(--motion-ui) var(--ease-silk)}
.chapter-rail a:hover,.chapter-rail a:focus-visible,.chapter-rail a.is-active{width:54px;color:#04131f;background:var(--aqua);border-color:rgba(255,255,255,.6)}.chapter-rail a:hover b,.chapter-rail a:focus-visible b,.chapter-rail a.is-active b{opacity:1;transform:none}.chapter-rail a.is-active b{color:rgba(255,255,255,.92)}
.scene-viewport>img{transition:opacity var(--motion-scene) var(--ease-silk),transform 1.35s var(--ease-silk),filter var(--motion-scene) var(--ease-silk)}.scene-viewport.is-changing>img{opacity:.16;transform:scale(1.055);filter:brightness(.56) saturate(.72)}

/* Keep the four system cards on mirrored coordinates around the orbit center. */
.system-orbit{--orbit-node-inline:4%;--orbit-node-block:16%}
.system-orbit .node-power{left:var(--orbit-node-inline);right:auto;top:var(--orbit-node-block);bottom:auto}
.system-orbit .node-hydrogen{left:auto;right:var(--orbit-node-inline);top:var(--orbit-node-block);bottom:auto}
.system-orbit .node-bio{left:var(--orbit-node-inline);right:auto;top:auto;bottom:var(--orbit-node-block)}
.system-orbit .node-digital{left:auto;right:var(--orbit-node-inline);top:auto;bottom:var(--orbit-node-block)}
.system-orbit .orbit-node:hover,.system-orbit .orbit-node:focus-visible,.system-orbit .orbit-node.is-active{transform:none}

@media(max-width:1180px){.chapter-rail{display:none}}
@media(prefers-reduced-motion:reduce){.chapter-rail a,.chapter-rail b{transition:none}}