:root {
  --ink: #0a1823;
  --navy: #06111c;
  --navy-2: #0b1d2b;
  --paper: #f1f0e8;
  --muted: #87949c;
  --line: rgba(12, 31, 43, 0.18);
  --light-line: rgba(255, 255, 255, 0.14);
  --orange: #ef7043;
  --acid: #d8f261;
  --blue: #79a9bd;
  --mono: "DM Mono", monospace;
  --sans: "Manrope", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.noise {
  position: fixed; inset: 0; pointer-events: none; z-index: 99; opacity: .045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.88' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

.site-header {
  height: 82px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 4vw; position: absolute; top: 0; width: 100%; color: white; z-index: 20;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.brand { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; letter-spacing: .12em; }
.brand svg { width: 28px; fill: none; stroke: var(--orange); stroke-width: 2; margin-right: 4px; }
.brand b { font-weight: 600; color: var(--acid); }
.site-header nav { display: flex; align-items: center; gap: 34px; font: 400 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.site-header nav a { transition: color .25s; }
.site-header nav a:hover { color: var(--acid); }
.site-header .nav-cta { border-left: 1px solid rgba(255,255,255,.2); padding-left: 34px; }
.site-header .nav-cta span { color: var(--orange); margin-left: 7px; }
.menu-toggle { display: none; background: none; border: 0; padding: 10px; }
.menu-toggle span { display: block; width: 24px; height: 1px; background: white; margin: 6px; }

.hero {
  min-height: 800px; height: min(940px, 100vh); color: white; background: var(--navy);
  position: relative; overflow: hidden; display: grid; grid-template-columns: 43% 57%; align-items: center;
  padding: 110px 4vw 60px;
}
.hero::before {
  content: ""; position: absolute; width: 760px; height: 760px; border-radius: 50%;
  border: 1px solid rgba(113, 157, 177, .18); right: -110px; top: 60px;
  box-shadow: 0 0 0 120px rgba(113,157,177,.025), 0 0 0 240px rgba(113,157,177,.018);
}
.hero-copy { position: relative; z-index: 2; padding-left: 4vw; }
.eyebrow { font: 400 11px var(--mono); text-transform: uppercase; letter-spacing: .14em; color: #8697a2; display: flex; align-items: center; gap: 10px; }
.eyebrow > span { width: 28px; height: 1px; background: var(--orange); }
.eyebrow.light { color: #96a9b4; }
h1, h2 { margin: 0; font-weight: 500; letter-spacing: -.055em; line-height: .94; }
h1 { font-size: clamp(72px, 8vw, 130px); margin: 32px 0 30px; }
h1 em, h2 em { font-weight: 400; color: var(--orange); font-style: italic; font-family: Georgia, serif; }
.hero-deck { color: #afbbc2; font-size: clamp(16px, 1.3vw, 20px); max-width: 540px; line-height: 1.6; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 42px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; padding: 17px 19px; min-width: 220px; font: 500 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.button-primary { background: var(--orange); color: #fff; }
.button span { font-size: 16px; }
.text-link { font: 400 10px var(--mono); letter-spacing: .06em; text-transform: uppercase; border-bottom: 1px solid #536571; padding: 12px 0; }
.text-link span { color: var(--acid); margin-left: 9px; }
.hero-visual { position: relative; height: 680px; z-index: 1; }
.sun { position: absolute; width: 390px; height: 390px; background: #112b3d; border-radius: 50%; left: 25%; top: 13%; box-shadow: inset 0 0 90px rgba(89,140,163,.13); }
.vessel { position: absolute; width: 108%; left: -8%; top: 11%; overflow: visible; filter: drop-shadow(0 40px 35px rgba(0,0,0,.28)); }
.shadow { fill: rgba(0,0,0,.25); }
.float { animation: float 6s ease-in-out infinite; transform-origin: center; }
.waves path { animation: drift 8s ease-in-out infinite alternate; }
.waves path:nth-child(2) { animation-delay: -2s; }
.visual-tag { position: absolute; display: flex; gap: 9px; align-items: center; font: 400 9px var(--mono); text-transform: uppercase; letter-spacing: .08em; color: #8295a0; }
.visual-tag i { width: 7px; height: 7px; border: 1px solid var(--acid); border-radius: 50%; box-shadow: 0 0 0 4px rgba(216,242,97,.08); }
.visual-tag b { display: block; color: white; font-size: 12px; margin-bottom: 3px; }
.tag-power { right: 6%; top: 28%; }
.tag-cooling { left: 5%; bottom: 19%; }
.visual-caption { position: absolute; bottom: 5%; right: 6%; color: #4e6472; font: 9px var(--mono); letter-spacing: .15em; }
.coordinate { position: absolute; color: #354c5b; font: 9px var(--mono); letter-spacing: .15em; }
.coordinate-a { left: 6%; top: 11%; writing-mode: vertical-rl; }
.coordinate-b { right: 7%; bottom: 11%; }
.hero-index { position: absolute; bottom: 28px; left: 4vw; color: #70828e; font: 10px var(--mono); letter-spacing: .1em; }
.hero-index span { margin: 0 7px; color: var(--orange); }

.ticker { background: var(--acid); color: #182319; overflow: hidden; padding: 13px 0; white-space: nowrap; }
.ticker-track { width: max-content; animation: ticker 28s linear infinite; display: flex; align-items: center; }
.ticker span { font: 500 10px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.ticker i { width: 5px; height: 5px; background: var(--orange); border-radius: 50%; margin: 0 34px; }

.section { padding: 120px 8vw; }
.section-label { display: flex; gap: 14px; align-items: center; font: 500 10px var(--mono); text-transform: uppercase; letter-spacing: .13em; margin-bottom: 80px; color: #53636c; }
.section-label::after { content: ""; height: 1px; background: var(--line); flex: 1; margin-left: 16px; }
.section-label span { color: var(--orange); }
.section-label.light { color: #94a5af; }
.section-label.light::after { background: var(--light-line); }
.thesis-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10vw; align-items: start; }
h2 { font-size: clamp(55px, 6.3vw, 104px); }
.thesis-copy { max-width: 560px; font-size: 20px; line-height: 1.7; color: #3c4b53; padding-top: 12px; }
.thesis-copy p { margin-top: 0; }
.thesis-copy .caveat { font: 400 11px/1.7 var(--mono); color: #718088; border-left: 2px solid var(--orange); padding-left: 20px; margin-top: 40px; text-transform: uppercase; letter-spacing: .02em; }
.pressure-cards { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 100px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stat-card { padding: 42px 3vw 38px 0; position: relative; }
.stat-card + .stat-card { border-left: 1px solid var(--line); padding-left: 3vw; }
.stat-number { font-size: clamp(60px, 6vw, 90px); font-weight: 500; letter-spacing: -.07em; }
.stat-unit { color: var(--orange); font: 500 10px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.stat-card p { color: #596870; max-width: 260px; min-height: 50px; line-height: 1.5; font-size: 13px; }
.stat-card a { font: 400 9px var(--mono); text-transform: uppercase; letter-spacing: .08em; border-bottom: 1px solid #bbc0ba; padding-bottom: 4px; }

.system { background: var(--navy); color: white; }
.system-heading, .model-intro, .roadmap-intro { display: grid; grid-template-columns: 1fr .65fr; gap: 8vw; align-items: end; }
.system-heading p, .model-intro p, .roadmap-intro p { font-size: 18px; line-height: 1.7; color: #91a1aa; max-width: 520px; }
.fleet-map { margin-top: 100px; border: 1px solid var(--light-line); min-height: 420px; position: relative; padding: 70px 4vw; display: flex; align-items: center; }
.node { text-align: center; position: relative; z-index: 2; }
.node strong, .node small { display: block; font-family: var(--mono); }
.node strong { font-size: 10px; letter-spacing: .1em; margin-top: 14px; }
.node small { font-size: 8px; color: #6f848f; margin-top: 7px; }
.shore-node { width: 180px; }
.node-icon { width: 80px; height: 80px; border: 1px solid #365163; margin: auto; display: flex; align-items: flex-end; justify-content: center; gap: 5px; padding: 19px; }
.node-icon span { width: 9px; background: var(--blue); }
.node-icon span:nth-child(1) { height: 24px; }.node-icon span:nth-child(2) { height: 38px; }.node-icon span:nth-child(3) { height: 30px; }
.main-line { flex: 1; height: 1px; background: #314b5b; position: relative; }
.main-line::before, .main-line::after { content: ""; position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--acid); top: -3px; }
.main-line::after { right: 0; }
.main-line span { position: absolute; top: -25px; left: 50%; transform: translateX(-50%); font: 8px var(--mono); color: #627a87; white-space: nowrap; }
.vessel-nodes { width: 56%; display: grid; grid-template-columns: repeat(2, 1fr); gap: 55px 30px; position: relative; }
.vessel-nodes::before, .vessel-nodes::after { content: ""; position: absolute; background: #314b5b; }
.vessel-nodes::before { width: 1px; height: calc(100% - 40px); left: 50%; top: 20px; }
.vessel-nodes::after { height: 1px; width: calc(100% - 120px); left: 60px; top: 50%; }
.mini-vessel { width: 82px; height: 46px; border: 1px solid #4a6675; margin: auto; transform: skewX(-13deg); position: relative; background: #0b1c28; }
.mini-vessel::before { content: ""; position: absolute; width: 58px; height: 5px; left: 10px; top: 11px; background: #294958; box-shadow: 0 9px #294958; }
.mini-vessel span { width: 6px; height: 6px; background: var(--acid); position: absolute; right: 8px; bottom: 5px; border-radius: 50%; }
.warning .mini-vessel { opacity: .45; border-style: dashed; }
.warning .mini-vessel span { background: var(--orange); }
.workload-shift { position: absolute; right: 3vw; bottom: 18px; color: var(--acid); font: 8px var(--mono); letter-spacing: .1em; }
.workload-shift span { color: var(--orange); margin-right: 8px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 70px; }
.feature { padding: 20px 2.5vw 10px 0; }
.feature + .feature { border-left: 1px solid var(--light-line); padding-left: 2.5vw; }
.feature > span { font: 9px var(--mono); color: var(--orange); }
.feature h3 { font-size: 16px; font-weight: 600; margin: 20px 0 14px; }
.feature p { font-size: 12px; line-height: 1.65; color: #788b95; }

.vessel-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 8vw; align-items: center; }
.spec-panel h2 { margin: 25px 0 35px; }
.spec-panel > p { color: #56666e; line-height: 1.7; max-width: 520px; }
.spec-list { margin-top: 45px; border-top: 1px solid var(--line); }
.spec-list > div { display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); padding: 14px 0; }
.spec-list span { font: 9px var(--mono); letter-spacing: .08em; color: #75838a; }
.spec-list strong { font: 500 10px var(--mono); }
.cutaway { background: #d9d9d0; min-height: 590px; padding: 55px 7%; position: relative; overflow: hidden; }
.cutaway::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(0deg,transparent,transparent 39px,rgba(12,31,43,.05) 40px),repeating-linear-gradient(90deg,transparent,transparent 39px,rgba(12,31,43,.05) 40px); }
.cutaway-title { position: relative; font: 500 9px var(--mono); letter-spacing: .1em; margin-bottom: 60px; }
.cutaway-title span { float: right; color: #718087; }
.deck { position: relative; height: 74px; border: 1px solid #829098; background: rgba(241,240,232,.78); padding: 17px 20px 12px 58px; margin-top: 7px; }
.deck > span { position: absolute; left: 18px; top: 17px; color: var(--orange); font: 9px var(--mono); }
.deck b, .deck small { display: block; font-family: var(--mono); }
.deck b { font-size: 11px; letter-spacing: .05em; }.deck small { color: #6a7981; margin-top: 6px; font-size: 8px; }
.deck.compute { height: 125px; background: #132735; color: white; border-color: #132735; }
.deck.compute i { display: inline-block; width: 11%; height: 40px; margin: 12px 2% 0 0; border: 1px solid #47606e; background: repeating-linear-gradient(0deg,#203d4d 0,#203d4d 2px,transparent 2px,transparent 6px); }
.deck.compute i:last-child { margin-right: 0; }
.deck.cooling { border-left: 5px solid var(--blue); }
.deck.ballast { border-left: 5px solid var(--orange); }
.waterlines { position: absolute; left: -5%; right: -5%; bottom: 17px; }
.waterlines span { display: block; border-top: 1px solid #7798a9; height: 9px; transform: rotate(-1deg); opacity: .7; }

.model { background: #e7e6dd; }
.model-intro p { color: #53636b; }
.product-stack { margin-top: 90px; border-top: 1px solid var(--line); }
.product-stack article { display: grid; grid-template-columns: 70px 1fr auto; align-items: center; gap: 20px; border-bottom: 1px solid var(--line); padding: 28px 0; }
.product-no { font: 9px var(--mono); color: var(--orange); }
.product-stack h3 { margin: 0 0 7px; font-size: 19px; }
.product-stack p { margin: 0; color: #69777e; font-size: 12px; }
.product-stack article > strong { font: 500 8px var(--mono); border: 1px solid #aeb5b1; padding: 7px 10px; letter-spacing: .1em; }
.economics { margin-top: 100px; background: var(--navy-2); color: white; display: grid; grid-template-columns: .7fr 1.3fr; gap: 6vw; padding: 54px 4vw; }
.micro-label { color: var(--orange); font: 9px var(--mono); letter-spacing: .12em; }
.economics-copy h3 { font-size: 28px; line-height: 1.25; margin: 25px 0 14px; }
.economics-copy p { color: #748994; font: 8px/1.6 var(--mono); text-transform: uppercase; }
.economics-grid { display: grid; grid-template-columns: 1fr 1fr; }
.economics-grid div { border-left: 1px solid var(--light-line); padding: 5px 2vw 25px; }
.economics-grid div:nth-child(n+3) { border-top: 1px solid var(--light-line); padding-top: 25px; }
.economics-grid span, .economics-grid strong { display: block; }
.economics-grid span { font: 8px var(--mono); color: #82959f; text-transform: uppercase; letter-spacing: .05em; }
.economics-grid strong { font-size: 33px; letter-spacing: -.04em; margin-top: 12px; }
.economics-grid small { font: 8px var(--mono); color: var(--acid); margin-left: 3px; }

.roadmap { background: #101f28; color: white; }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 90px; border-top: 1px solid var(--light-line); }
.timeline article { padding: 30px 2.5vw 10px 0; min-height: 260px; position: relative; }
.timeline article + article { border-left: 1px solid var(--light-line); padding-left: 2.5vw; }
.timeline article::before { content: ""; width: 8px; height: 8px; background: var(--acid); border-radius: 50%; position: absolute; top: -4px; left: 0; box-shadow: 0 0 0 5px rgba(216,242,97,.08); }
.timeline article + article::before { left: 2.5vw; }
.phase, .time { font: 8px var(--mono); letter-spacing: .1em; }.phase { color: var(--orange); }.time { float: right; color: #687b86; }
.timeline h3 { margin: 45px 0 15px; font-size: 18px; }.timeline p { color: #7f919a; font-size: 12px; line-height: 1.6; min-height: 62px; }.timeline strong { font: 500 10px var(--mono); color: var(--acid); }

.requirements-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 10vw; }
.requirements-heading p { color: #63727a; max-width: 400px; line-height: 1.7; }
.requirements-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { list-style: none; cursor: pointer; padding: 26px 0; display: grid; grid-template-columns: 50px 1fr auto; font-size: 17px; font-weight: 600; }
summary::-webkit-details-marker { display: none; }
summary span { font: 9px var(--mono); color: var(--orange); }
summary i { font: normal 17px var(--mono); color: #7b888e; transition: transform .25s; }
details[open] summary i { transform: rotate(45deg); }
details p { margin: -5px 50px 26px; color: #66757c; font-size: 13px; line-height: 1.7; }

.sources { padding-top: 20px; }
.sources-intro { display: grid; grid-template-columns: 1fr .7fr; gap: 10vw; align-items: end; }
.sources-intro p { color: #63727a; line-height: 1.7; max-width: 470px; }
.source-links { margin-top: 80px; border-top: 1px solid var(--line); }
.source-links a { display: grid; grid-template-columns: 130px 1fr auto; padding: 22px 0; border-bottom: 1px solid var(--line); align-items: center; transition: padding .25s, background .25s; }
.source-links a:hover { padding-left: 14px; background: rgba(255,255,255,.35); }
.source-links span { font: 8px var(--mono); color: var(--orange); letter-spacing: .1em; }
.source-links strong { font-size: 14px; }.source-links i { font-style: normal; color: var(--orange); }

.contact { min-height: 690px; background: var(--navy); color: white; display: flex; align-items: center; justify-content: center; text-align: center; position: relative; overflow: hidden; padding: 100px 5vw; }
.contact-content { position: relative; z-index: 2; max-width: 900px; }
.contact .eyebrow { justify-content: center; }.contact h2 { margin: 30px 0; font-size: clamp(70px, 8vw, 125px); }.contact p { color: #889ba6; max-width: 590px; margin: 0 auto 35px; line-height: 1.7; }
.button-light { background: var(--acid); color: #172118; }
.contact-orbit { position: absolute; width: 650px; height: 650px; border: 1px solid #183242; border-radius: 50%; }
.contact-orbit::before, .contact-orbit::after { content: ""; position: absolute; border: 1px solid #132a39; border-radius: 50%; }
.contact-orbit::before { inset: 80px; }.contact-orbit::after { inset: 160px; }
.contact-orbit span { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--orange); }
.contact-orbit span:nth-child(1) { left: 51px; top: 130px; }.contact-orbit span:nth-child(2) { right: 104px; bottom: 74px; background: var(--acid); }.contact-orbit span:nth-child(3) { right: 7px; top: 303px; background: var(--blue); }

footer { background: #040c13; color: #70838d; padding: 35px 4vw; display: flex; align-items: center; justify-content: space-between; font: 8px var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.footer-brand { color: white; font-size: 9px; }.footer-brand b { color: var(--acid); }

.reveal { opacity: 1; transform: none; transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes float { 0%,100%{transform:translateY(0) rotate(.1deg)}50%{transform:translateY(-9px) rotate(-.3deg)} }
@keyframes drift { from{transform:translateX(-10px)}to{transform:translateX(8px)} }
@keyframes ticker { to { transform: translateX(-50%); } }

@media (max-width: 980px) {
  .site-header nav { display: none; position: absolute; top: 82px; left: 0; right: 0; padding: 30px 5vw; background: var(--navy); flex-direction: column; align-items: flex-start; border-bottom: 1px solid var(--light-line); }
  .site-header.nav-open nav { display: flex; }.menu-toggle { display: block; }
  .hero { height: auto; min-height: 940px; grid-template-columns: 1fr; padding-top: 155px; }
  .hero-copy { padding-left: 0; }.hero-visual { height: 520px; margin-top: -30px; }.vessel { left: -1%; width: 100%; }.sun { width: 310px; height: 310px; }
  .thesis-grid, .vessel-layout, .requirements-grid, .sources-intro, .system-heading, .model-intro, .roadmap-intro { grid-template-columns: 1fr; gap: 45px; }
  .pressure-cards { grid-template-columns: 1fr; }.stat-card + .stat-card { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; }.stat-card p { min-height: 0; }
  .fleet-map { padding: 60px 2vw; }.shore-node { width: 130px; }.vessel-nodes { width: 65%; }
  .feature-grid, .timeline { grid-template-columns: 1fr 1fr; }.feature:nth-child(3) { border-left: 0; padding-left: 0; }.timeline article:nth-child(3) { border-left: 0; padding-left: 0; }.timeline article:nth-child(3)::before { left: 0; }
  .economics { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .site-header { padding: 0 20px; }.brand { font-size: 10px; }
  .hero { min-height: 820px; padding: 130px 20px 40px; display: block; }.hero h1 { font-size: 62px; }.hero-deck { font-size: 15px; }.hero-actions { align-items: flex-start; flex-direction: column; gap: 12px; margin-top: 28px; }
  .hero-visual { height: 340px; margin-top: 5px; }.sun { width: 220px; height: 220px; left: 22%; }.vessel { top: 3%; width: 118%; left: -8%; }.visual-tag { display: none; }.hero-index { display: none; }.coordinate { display: none; }
  .section { padding: 80px 20px; }.section-label { margin-bottom: 55px; } h2 { font-size: 53px; }
  .thesis-copy { font-size: 16px; }.pressure-cards { margin-top: 65px; }.stat-number { font-size: 64px; }
  .fleet-map { min-height: 620px; flex-direction: column; padding: 35px 15px; }.main-line { height: 50px; width: 1px; flex: none; }.main-line span { left: 14px; top: 20px; transform: none; }.main-line::before { left: -3px }.main-line::after { right: auto; left: -3px; bottom: 0; top: auto; }
  .shore-node { width: 100%; }.node-icon { width: 65px; height: 65px; padding: 14px; }.vessel-nodes { width: 100%; flex: 1; gap: 40px 15px; }.workload-shift { right: 15px; }
  .feature-grid, .timeline { grid-template-columns: 1fr; }.feature + .feature { border-left: 0; border-top: 1px solid var(--light-line); padding: 25px 0; }.timeline article + article, .timeline article:nth-child(3) { border-left: 0; border-top: 1px solid var(--light-line); padding-left: 0; }.timeline article + article::before { left: 0; }.timeline article { min-height: 220px; }
  .cutaway { min-height: 520px; padding: 40px 20px; }.deck { padding-left: 47px; }.deck.compute i { width: 10%; }
  .product-stack article { grid-template-columns: 38px 1fr; }.product-stack article > strong { display: none; }
  .economics { padding: 38px 20px; }.economics-grid { grid-template-columns: 1fr; }.economics-grid div { border-left: 0; border-top: 1px solid var(--light-line); padding: 20px 0; }
  .source-links a { grid-template-columns: 85px 1fr auto; gap: 8px; }.source-links strong { font-size: 11px; }
  .contact { min-height: 590px; }.contact h2 { font-size: 61px; }.contact-orbit { width: 480px; height: 480px; }
  footer { flex-direction: column; gap: 18px; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}
