@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;600;700&family=Libre+Caslon+Display&display=swap');

:root{color-scheme:dark;--ink:#e8eee7;--muted:#a6bec2;--accent:#d4e7bb;--line:rgba(166,198,201,.22);--serif:'Libre Caslon Display',Georgia,serif;--sans:'DM Sans',system-ui,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:#051821;color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.8;background-image:radial-gradient(ellipse at 80% 5%,#18465466,transparent 24%),linear-gradient(#102f3b 0%,#0b303e 23%,#082431 48%,#061c28 70%,#030e16 100%)}a{color:inherit;text-decoration:none}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:7px}::selection{background:#d4e7bb;color:#082632}p{margin:0 0 1.3em}h1,h2,h3{font-weight:400;margin:0}h1,h2{font-family:var(--serif);line-height:1.03;letter-spacing:-.025em}h1{font-size:clamp(66px,7.4vw,116px)}h1 em{font-style:normal;color:#b9d4d3}h2{font-size:clamp(44px,5vw,76px)}h3{font-family:var(--serif);font-size:29px;line-height:1.15;margin-bottom:16px}.section{position:relative;max-width:1440px;margin:auto;padding:120px clamp(28px,8vw,124px);scroll-margin-top:20px}.eyebrow{font-size:11px;font-weight:600;letter-spacing:.19em;text-transform:uppercase;color:var(--accent);margin-bottom:30px}.lead{font-size:21px;line-height:1.65;color:#d3e1df}.text-link{font-size:13px;display:inline-flex;gap:22px;align-items:center;border-bottom:1px solid #7da3a5;padding:5px 0;color:#d4e5df}.text-link:hover{color:var(--accent);border-color:var(--accent)}.button{display:inline-flex;align-items:center;justify-content:center;gap:35px;padding:14px 26px;background:var(--accent);color:#142c31;font-size:13px;font-weight:600;line-height:1.7;border:1px solid transparent;cursor:pointer;transition:background .2s,transform .2s}.button:hover{background:#e9f4d8;transform:translateY(-2px)}.button-small{padding:10px 19px;gap:24px}.header{height:95px;position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:0 clamp(25px,5vw,76px);background:#0b2531e8;border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.wordmark{font-weight:600;font-size:25px;letter-spacing:-1px}.wordmark span{font-weight:400;color:#a1b8bc}.header nav{display:flex;align-items:center;gap:40px}.science-nav{font-size:12px;color:#c3d3d2}.science-nav:hover{color:var(--accent)}.skip{position:fixed;top:-100px;left:20px;padding:12px 20px;background:var(--accent);color:#082632;z-index:100}.skip:focus{top:10px}.ocean-light{position:absolute;top:95px;left:0;right:0;height:1400px;pointer-events:none;overflow:hidden;background:repeating-conic-gradient(from 155deg at 65% -30%,transparent 0deg 7deg,#a0e5d206 8deg 12deg,transparent 13deg 24deg);mask-image:linear-gradient(#000,transparent)}.hero{min-height:calc(100svh - 95px);display:grid;grid-template-columns:1.15fr 1fr;align-items:center;padding-top:64px;padding-bottom:110px;gap:50px}.hero-copy{z-index:1}.hero .eyebrow{display:flex;align-items:center;gap:14px;margin-bottom:25px}.small-line{height:1px;width:30px;background:var(--accent)}.hero-hook{font-family:var(--serif);font-size:30px;line-height:1.3;margin:29px 0 18px}.hero-description{color:var(--muted);font-size:14px;line-height:1.9}.actions{display:flex;align-items:center;gap:28px;margin:30px 0}.genre{font-size:9px;letter-spacing:.17em;color:#8caeb4;margin-top:35px}.hero-art{position:relative;display:flex;align-items:center;justify-content:center;padding:32px 25px 46px}.cover{display:block;height:auto;box-shadow:12px 22px 55px #0009;border-left:3px solid #9eafb144;border-radius:1px 4px 4px 1px}.hero-cover{width:min(100%,330px);position:relative;transform:rotate(3deg);transition:transform .6s}.hero-cover:hover{transform:rotate(0)}.sonar{position:absolute;border:1px solid #79bec51c;border-radius:50%;width:115%;aspect-ratio:1}.sonar-two{width:140%;border-color:#79bec510}.sonar-one:after{content:'';position:absolute;inset:12%;border:1px solid #79bec51c;border-radius:50%}.art-coordinate,.art-caption{position:absolute;font-size:9px;letter-spacing:.17em;color:#94b5bb}.art-coordinate{top:0;left:10px}.art-caption{bottom:3px;right:30px;font-family:var(--serif);font-size:20px;letter-spacing:.01em;color:#bad1d0}.scroll-cue{position:absolute;left:clamp(28px,8vw,124px);bottom:34px;display:flex;gap:15px;align-items:center;font-size:10px;letter-spacing:.08em;color:#99b6ba;z-index:2}.scroll-cue span{font-size:22px}.surface-waves{position:absolute;bottom:-1px;left:0;width:100%;height:35px;fill:#1a56632b}.descent{position:fixed;right:24px;top:45%;z-index:10;display:flex;flex-direction:column;align-items:center;gap:13px}.descent-label{writing-mode:vertical-rl;font-size:8px;letter-spacing:.25em;color:#8caeb4;margin-bottom:10px}.descent a{padding:3px;line-height:0}.descent a span{display:block;height:5px;width:5px;border-radius:50%;background:#65868c}.descent a[aria-current] span{background:var(--accent);box-shadow:0 0 9px #d4e7bb88}.progress-track{width:1px;height:55px;background:#4e717766;margin-top:8px}#progress{background:var(--accent);width:1px;height:0}.story{padding-top:150px;padding-bottom:160px;display:grid;grid-template-columns:1.1fr 1fr;gap:80px}.story h2{font-size:clamp(42px,4.4vw,64px)}.story-body{padding-top:42px;color:var(--muted);font-size:15px}.story-body .text-link{margin-top:14px}.waterline{position:absolute;bottom:20px;left:8%;right:8%;display:flex;align-items:center;gap:24px}.waterline span{font-size:8px;letter-spacing:.2em;white-space:nowrap;color:#87afb4}.waterline i{height:1px;width:100%;background:linear-gradient(90deg,#749aa944,transparent)}.science-section{padding-top:130px}.science-intro{max-width:750px}.science-intro .lead{margin-top:27px}.science-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:center;margin-top:35px}.camera-figure{margin:0}.camera-figure svg{display:block;width:100%;height:auto}.camera-figure figcaption,.ship-figure figcaption{font-size:10px;letter-spacing:.03em;color:#86a6ad;text-align:center;margin-top:15px}.science-copy{font-size:15px;color:var(--muted)}.source-feature{margin-top:38px;padding:25px 0 0 25px;border-top:1px solid var(--line);border-left:1px solid var(--line)}.source-feature .eyebrow{margin-bottom:16px}.source-feature h3{color:var(--ink)}.source-feature p{font-size:14px}.vessel-section{padding-top:140px}.vessel-intro{max-width:680px}.vessel-intro .lead{max-width:530px;margin-top:28px}.ship-figure{margin:50px -20px 50px}.ship-figure svg{width:100%;height:auto;display:block}.ship-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:45px}.ship-notes>div{border-top:1px solid var(--line);padding-top:22px}.note-number{font-family:monospace;color:var(--accent);font-size:11px}.ship-notes h3{font-size:25px;margin-top:18px}.ship-notes p{font-size:14px;color:var(--muted)}.reality-note{display:flex;align-items:center;gap:50px;border-top:1px solid var(--line);padding-top:30px;margin-top:35px}.reality-note p{font-size:12px;color:var(--muted);max-width:650px;margin:0}.reality-note .text-link{flex-shrink:0;font-size:11px}.seabed-section{min-height:820px;display:flex;align-items:center;overflow:hidden}.contours{position:absolute;inset:0 0 0 20%;color:#52969d;opacity:.23;mask-image:linear-gradient(90deg,transparent,#000 65%);pointer-events:none}.contours svg{width:100%;height:100%}.geology-copy{position:relative;max-width:530px}.geology-copy .lead{margin-top:28px}.geology-copy>p:not(.eyebrow):not(.lead){font-size:15px;color:var(--muted)}.geology-copy .illustration-note{font-size:10px!important;margin-top:35px;max-width:360px}.closing{display:grid;grid-template-columns:.8fr 1.2fr;align-items:center;gap:100px;padding-top:120px;padding-bottom:120px;border-top:1px solid var(--line)}.closing-cover{width:240px;justify-self:center}.closing-glow{position:absolute;inset:0;background:radial-gradient(ellipse at 30% 50%,#345a4f30,transparent 60%);pointer-events:none}.closing-copy{position:relative}.closing-copy h2{font-size:clamp(44px,4.8vw,72px)}.closing-copy .lead{font-size:18px;margin-top:26px}.availability{font-size:11px;color:var(--muted);margin-top:15px}.author{border-top:1px solid var(--line);padding-top:65px;padding-bottom:65px;display:grid;grid-template-columns:.8fr 1.2fr;gap:100px}.author .eyebrow{margin-top:10px}.author>p:last-child{font-size:19px;font-family:var(--serif);color:#bcd0cf;margin:0;line-height:1.7}.author em{color:#e0e9dc}footer{padding:35px clamp(28px,8vw,124px);border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:25px;max-width:1440px;margin:auto}footer .wordmark{font-size:21px}footer p{font-size:10px;color:#8caaaf;margin:0}footer .text-link{font-size:11px}footer .credits{width:100%;font-size:9px;color:#77979f;max-width:750px}.reveal{opacity:1}.motion-ready .reveal{opacity:0;transform:translateY(20px);transition:opacity .8s ease,transform .8s ease}.motion-ready .reveal.visible{opacity:1;transform:none}dialog{background:#102e3a;color:var(--ink);border:1px solid #54717a;max-width:480px;width:calc(100% - 40px);padding:45px;box-shadow:0 20px 100px #0008}dialog::backdrop{background:#020e16d9;backdrop-filter:blur(7px)}dialog h2{font-size:43px;margin-bottom:24px}dialog>p:not(.eyebrow){color:var(--muted);font-size:15px}.dialog-close{position:absolute;right:14px;top:6px;border:0;background:none;color:var(--ink);font-size:28px;cursor:pointer}.dialog-done{margin-top:10px}
@media(min-width:1600px){.hero{min-height:850px}.section{padding-top:150px;padding-bottom:150px}}
@media(max-width:1050px){.section{padding-left:6%;padding-right:8%}.hero{gap:25px}.hero-cover{width:270px}.hero-hook{font-size:25px}.hero-description{font-size:13px}.descent{right:12px}.story,.science-grid{gap:40px}.closing,.author{gap:50px}.reality-note{flex-direction:column;align-items:flex-start;gap:20px}.scroll-cue{left:6%}.ship-notes{gap:25px}.genre{font-size:8px;letter-spacing:.1em}}
@media(max-width:700px){html{scroll-padding-top:85px}.header{height:76px;padding:0 22px}.wordmark{font-size:23px}.science-nav{display:none}.button-small{padding:8px 14px;font-size:11px;gap:16px}.section{padding:80px 26px}.hero{grid-template-columns:1fr;padding-top:45px;padding-bottom:90px;gap:30px;min-height:0}.hero h1{font-size:76px}.hero .eyebrow{font-size:9px}.hero-hook{font-size:27px}.hero-description br{display:none}.hero-description{max-width:280px}.hero-art{padding:28px 25px 40px;max-width:350px;justify-self:center;width:100%}.hero-cover{width:225px}.sonar{width:95%}.sonar-two{width:110%}.art-coordinate{font-size:8px;left:25px}.art-caption{font-size:18px;right:20px}.genre{margin-top:24px}.scroll-cue{left:26px;font-size:9px;bottom:24px}.actions{gap:22px}.actions .button{padding:12px 20px;gap:25px}.descent{display:none}.story{grid-template-columns:1fr;gap:25px;padding-bottom:100px}.story-body{padding-top:0}.story h2{font-size:47px}.waterline{left:26px;right:26px;bottom:15px}.science-grid{grid-template-columns:1fr;gap:20px;margin-top:0}.science-intro .lead{font-size:19px}.camera-figure{max-width:450px}.science-copy{font-size:15px}.source-feature{padding-left:20px}.vessel-intro .lead{font-size:19px}.ship-figure{margin:35px -12px}.ship-figure figcaption{font-size:9px}.ship-notes{grid-template-columns:1fr;gap:10px}.ship-notes>div{padding-top:15px}.ship-notes h3{display:inline;margin-left:15px;font-size:25px}.ship-notes p{margin-top:12px}.reality-note{margin-top:20px}.seabed-section{min-height:700px}.contours{inset:0 -50% 0 0;opacity:.18}.closing{grid-template-columns:1fr;gap:45px;text-align:center}.closing-cover{width:190px}.closing-copy h2{font-size:51px}.closing-copy .eyebrow{font-size:9px}.closing-copy .lead{font-size:17px}.author{grid-template-columns:1fr;gap:8px;padding-top:45px;padding-bottom:45px}.author .eyebrow{margin-bottom:10px}.author>p:last-child{font-size:20px}footer{padding:30px 26px;gap:20px}footer .text-link{font-size:10px}footer .credits{line-height:1.7}.ocean-light{top:76px;height:1600px}dialog{padding:36px 28px}}
.section-next{position:absolute;bottom:24px;left:clamp(28px,8vw,124px);display:inline-flex;align-items:center;gap:14px;min-height:44px;color:#bad0d1;font-size:11px;line-height:1.6;z-index:1}
.section-next .next-arrow{display:grid;place-items:center;width:34px;height:34px;border:1px solid #83b2b744;border-radius:50%;font-size:20px;transition:transform .2s,border-color .2s}
.section-next .next-label{display:block;text-transform:uppercase;letter-spacing:.18em;font-size:8px;color:var(--accent)}
.section-next:hover{color:var(--accent)}
.section-next:hover .next-arrow{transform:translateY(3px);border-color:var(--accent)}
@media(max-width:1050px){.section-next{left:6%}}
@media(max-width:700px){.section:has(>.section-next){padding-bottom:115px}.section-next{left:26px;bottom:22px}}
.wordmark{display:inline-flex;align-items:center;gap:12px;letter-spacing:normal}
.wordmark .wordmark-type{display:flex;flex-direction:column;gap:4px;line-height:1}
.wordmark .wordmark-name{font-family:var(--serif);font-size:26px;letter-spacing:.13em;color:var(--ink)}
.wordmark .wordmark-domain{font-family:var(--sans);font-size:8px;letter-spacing:.25em;color:#98b8bc}
footer .wordmark .wordmark-name{font-size:22px}
@media(max-width:700px){.wordmark{gap:8px}.wordmark .wordmark-name{font-size:21px}.wordmark .wordmark-domain{font-size:7px;letter-spacing:.22em}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}.motion-ready .reveal{opacity:1;transform:none}.hero-cover{transform:none}}

.release-status{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin:26px 0 12px}.release-status + .actions{margin-top:0}

.ashore{margin-top:36px;padding-top:28px;border-top:1px solid var(--line)}
.ashore .eyebrow{margin-bottom:15px}
.ashore>p:not(.eyebrow),.ashore-place p{font-size:14px;color:var(--muted)}
.ashore-place{margin-top:25px;padding-left:20px;border-left:1px solid var(--line)}
.ashore-place h4{font-weight:500;font-size:14px;color:var(--ink);margin:0 0 8px}
.ashore-place p{margin-bottom:10px}
.ashore-place .text-link{display:flex;width:fit-content;max-width:100%;margin-top:14px;padding:10px 0;min-height:44px;font-size:12px;gap:16px}
.ashore-place .text-link + .text-link{margin-top:18px}