@font-face{font-family:'Bodoni Moda';font-style:italic;font-weight:400 900;font-display:swap;src:url('./assets/bodoni-italic-latin-ext.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Bodoni Moda';font-style:italic;font-weight:400 900;font-display:swap;src:url('./assets/bodoni-italic-latin.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Bodoni Moda';font-style:normal;font-weight:400 900;font-display:swap;src:url('./assets/bodoni-latin-ext.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Bodoni Moda';font-style:normal;font-weight:400 900;font-display:swap;src:url('./assets/bodoni-latin.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:100 900;font-display:swap;src:url('./assets/hanken-latin-ext.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:100 900;font-display:swap;src:url('./assets/hanken-latin.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  color-scheme:dark;
  --water:oklch(25% .041 205);--deep:oklch(16% .025 220);--ink:oklch(24% .029 210);
  --ivory:oklch(95.5% .016 86);--muted:oklch(84% .027 170);--rose:oklch(47% .15 340);--rose-hover:oklch(54% .15 340);
  --line:oklch(93% .02 170 / .23);--page-gutter:clamp(24px,4.2vw,80px);--display:'Bodoni Moda',Georgia,serif;--body:'Hanken Grotesk',Arial,sans-serif;
  --z-scene:0;--z-content:1;--z-header:5;--z-controls:6;--z-menu:7;--z-status:8;
  --ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px;background:var(--deep)}
body{margin:0;font-family:var(--body);font-size:16px;line-height:1.6;color:var(--ivory);background:var(--deep);-webkit-font-smoothing:antialiased}
body.dialog-open{overflow:hidden}
a{color:inherit;text-underline-offset:5px}
button,summary,a{-webkit-tap-highlight-color:transparent}
button{font:inherit;color:inherit;cursor:pointer}
button:disabled{cursor:default;opacity:.55}
button,a,summary{touch-action:manipulation}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--ivory);outline-offset:6px}
.logbook a:focus-visible,.site-footer a:focus-visible,dialog a:focus-visible,dialog button:focus-visible{outline-color:var(--rose)}
h1,h2,h3,p,figure{margin:0}
h1,h2,h3{font-weight:400;text-wrap:balance}
p{text-wrap:pretty}
em{font-weight:inherit}
img{max-width:100%;height:auto;display:block}
.skip-link{position:fixed;top:12px;left:12px;padding:12px 20px;z-index:var(--z-status);background:var(--ivory);color:var(--ink);transform:translateY(-150%)}
.skip-link:focus{transform:translateY(0)}
.ocean-stage{position:fixed;inset:0;z-index:var(--z-scene);overflow:hidden;background:var(--water);pointer-events:none}
#scene-poster,#ocean-canvas,.ocean-shade{position:absolute;inset:0;width:100%;height:100%}
#scene-poster{object-fit:cover;object-position:54% center;filter:brightness(.86);transition:opacity 1.2s var(--ease)}
#ocean-canvas{display:block;opacity:0;transition:opacity 1.4s var(--ease)}
body.scene-ready #ocean-canvas{opacity:1}
body.scene-fallback #ocean-canvas,body.reduced-motion #ocean-canvas,body.motion-reduced #ocean-canvas{opacity:0}
.ocean-shade{background:linear-gradient(90deg,oklch(12% .021 220 / .42),transparent 75%),linear-gradient(180deg,oklch(12% .021 220 / .16),transparent 38%,oklch(12% .021 220 / .16));z-index:1}
main,.site-footer{position:relative;z-index:var(--z-content)}
.site-header{position:absolute;top:0;left:0;width:100%;display:flex;align-items:center;gap:40px;padding:30px var(--page-gutter);z-index:var(--z-header)}
.wordmark{text-decoration:none;font-size:29px;font-weight:600;letter-spacing:.2em;line-height:1}
.wordmark-dot{color:oklch(75% .13 340);margin-left:-.12em}
.main-nav{display:flex;gap:36px;align-items:center;margin-left:auto}
.main-nav a{font-size:14px;text-decoration:none;padding:9px 0;position:relative}
.main-nav a:after{content:'';position:absolute;left:0;right:0;bottom:5px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.main-nav a:hover:after,.main-nav a:focus-visible:after{transform:scaleX(1)}
.main-nav a span{margin-left:7px}
.header-note{font-size:12px;letter-spacing:.02em;padding-left:32px;border-left:1px solid var(--line)}
.menu-toggle{display:none}
.chapter{position:relative;min-height:100svh;padding:clamp(110px,14vh,180px) var(--page-gutter);scroll-margin-top:0}
.hero{display:flex;align-items:center;min-height:max(780px,100svh);padding-top:155px;padding-bottom:155px}
.hero-content{width:100%;max-width:1170px;margin:0 auto}
.expedition-kicker{font-size:11px;line-height:1.4;letter-spacing:.19em;text-transform:uppercase;margin-bottom:35px}
.expedition-kicker span{padding:0 12px;color:var(--muted)}
h1{font-family:var(--display);font-size:clamp(58px,6.8vw,96px);line-height:1.06;letter-spacing:-.038em;max-width:1000px}
h1 em{font-style:italic}
.hero-bottom{display:flex;align-items:flex-end;justify-content:space-between;width:min(690px,100%);gap:35px;margin-top:40px}
.hero-bottom p{font-size:15px;line-height:1.65;color:var(--ivory)}
.primary-link{display:inline-flex;gap:30px;align-items:center;justify-content:space-between;min-height:54px;padding:13px 15px 13px 24px;background:var(--rose);color:var(--ivory);text-decoration:none;font-size:13px;white-space:nowrap;transition:background .25s,transform .35s var(--ease)}
.primary-link:hover{background:var(--rose-hover);transform:translateY(-2px)}
.link-arrow{font-size:23px;line-height:1;width:22px;text-align:center}
.hero-margin-note{position:absolute;right:var(--page-gutter);top:47%;writing-mode:vertical-rl;display:flex;gap:32px;font-size:10px;letter-spacing:.12em;opacity:.8}
.scroll-note{position:absolute;bottom:115px;left:var(--page-gutter);display:flex;align-items:center;gap:14px;font-size:11px;letter-spacing:.015em;color:var(--muted)}
.scroll-stroke{display:block;height:1px;width:42px;background:var(--muted)}
.depth-caption{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.01em;margin-bottom:25px;color:var(--muted)}
.depth-dot{width:5px;height:5px;border-radius:50%;background:currentColor}
h2{font-family:var(--display);font-size:clamp(46px,5.1vw,76px);line-height:1.08;letter-spacing:-.032em}
.descent{min-height:112svh;display:flex;align-items:center;justify-content:space-between;gap:14vw;padding-left:max(var(--page-gutter),calc((100vw - 1170px)/2))}
.chapter-copy{max-width:420px}
.chapter-copy>p:not(.depth-caption){font-size:16px;line-height:1.75;margin-top:30px;max-width:36ch}
.chapter-copy .quiet-copy{color:var(--muted);font-size:13px!important;margin-top:20px!important;max-width:40ch!important}
.descent-aside{padding-top:16vh;padding-right:9vw;font-family:var(--display);font-size:clamp(24px,2.2vw,34px);font-style:italic;line-height:1.4;color:var(--muted)}
.vertical-rule{display:block;width:1px;height:90px;background:var(--line);margin-bottom:28px}
.canyon-chapter{min-height:138svh;padding-top:130px;padding-bottom:155px}
.canyon-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:35px;max-width:1110px;margin:auto}
.canyon-heading>p{font-size:14px;line-height:1.7;padding-bottom:7px;margin-right:6vw}
.photo-plate figcaption{display:flex;justify-content:space-between;gap:20px;font-size:10px;letter-spacing:.035em;padding-top:15px;color:var(--muted)}
.canyon-plate{width:76%;max-width:940px;margin:52px 0 0 auto}
.canyon-plate img{width:100%;aspect-ratio:1.7;object-fit:cover}
.canyon-footnote{font-size:12px;line-height:1.75;max-width:36ch;margin-top:-65px;margin-left:1vw;padding-right:18px;width:22%}
.source-link{font-size:10px;text-decoration:none;border-bottom:1px solid currentColor;white-space:nowrap}
.observation-chapter{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(65px,12vw,220px);align-items:center;min-height:135svh;padding-left:clamp(24px,10vw,180px);padding-right:clamp(24px,9vw,160px)}
.jelly-plate{width:100%;max-width:420px;transform:translateY(55px)}
.image-button{position:relative;display:block;width:100%;padding:0;border:0;background:var(--deep);overflow:hidden}
.image-button img{width:100%;aspect-ratio:2/3;object-fit:cover;transition:transform .9s var(--ease)}
.image-button:hover img{transform:scale(1.025)}
.image-expand{display:grid;place-items:center;position:absolute;bottom:16px;right:16px;width:44px;height:44px;border:1px solid oklch(95% .01 170 / .65);background:oklch(15% .025 210 / .45);font-size:23px}
.observation-copy{max-width:380px}
.observation-copy>p:not(.depth-caption){font-size:15px;line-height:1.8;margin-top:28px;max-width:35ch}
.observation-copy h2 em{font-size:.94em}
.text-button{display:flex;gap:28px;justify-content:space-between;align-items:center;background:transparent;border:0;border-bottom:1px solid var(--line);padding:16px 0;margin-top:26px;min-height:48px;font-size:12px;text-align:left;transition:border-color .3s}
.text-button:hover{border-color:var(--ivory)}
.text-button span{font-size:18px}
.abyss-chapter{min-height:115svh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding-top:150px;padding-bottom:200px}
.abyss-coordinate{font-size:11px;letter-spacing:.07em;color:var(--muted);margin-bottom:36px}
.abyss-chapter h2{font-size:clamp(45px,5.9vw,86px);line-height:1.17;max-width:1150px}
.abyss-chapter>p:not(.abyss-coordinate){margin-top:30px;font-size:14px;line-height:1.8;color:var(--muted)}
.return-link{display:flex;align-items:center;gap:34px;font-size:12px;text-decoration:none;border-bottom:1px solid var(--line);margin-top:45px;padding:12px 0}
.return-link span{font-size:20px}
.logbook{color-scheme:light;background:var(--ivory);color:var(--ink);padding:50px var(--page-gutter) 110px;scroll-margin-top:0}
.logbook-topline{display:flex;justify-content:space-between;gap:20px;font-size:11px;letter-spacing:.015em;border-top:1px solid oklch(24% .029 210 / .28);padding-top:20px}
.project-intro{display:grid;grid-template-columns:1fr 1fr;gap:14vw;margin:100px auto 100px;max-width:1170px}
.project-intro h2{font-size:clamp(54px,5.7vw,82px)}
.project-story{max-width:450px;padding-top:8px}
.project-story p{font-size:14px;line-height:1.8;margin-bottom:22px}
.project-story .project-lead{font-size:22px;line-height:1.4;letter-spacing:-.02em;margin-bottom:28px}
.project-link{display:flex;justify-content:space-between;align-items:center;gap:25px;font-size:13px;font-weight:600;text-decoration:none;border-bottom:1px solid oklch(24% .029 210 / .4);min-height:55px;margin-top:28px}
.project-link span{font-size:20px;color:var(--rose)}
.deck-plate{width:78%;margin-left:auto;max-width:1060px}
.deck-plate img{width:100%;aspect-ratio:1.65;object-fit:cover}
.deck-plate figcaption{font-size:11px;margin-top:15px;color:oklch(40% .024 210)}
.field-notes{display:grid;grid-template-columns:1fr 1.75fr;gap:10vw;max-width:1170px;margin:110px auto 0;padding-top:35px;border-top:1px solid oklch(24% .029 210 / .25);scroll-margin-top:40px}
.field-notes h3{font-family:var(--display);font-size:34px;line-height:1.15;letter-spacing:-.025em}
.source-notes{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.source-notes p{position:relative;font-size:12px;line-height:1.8}
.note-index{display:block;font-size:10px;margin-bottom:15px;color:var(--rose);font-weight:700}
.source-notes a{display:block;font-size:11px;margin-top:14px;text-decoration-thickness:1px}
.site-footer{display:grid;grid-template-columns:1fr auto;gap:48px;padding:20px var(--page-gutter) 42px;background:var(--ivory);color:var(--ink)}
.footer-wordmark{text-decoration:none;font-size:clamp(46px,9vw,140px);font-weight:550;letter-spacing:-.02em;line-height:1}
.site-footer>div{align-self:center}
.site-footer p{font-size:12px;margin-bottom:10px}
.site-footer>div>a{font-size:17px;text-decoration:none;border-bottom:1px solid var(--ink);padding-bottom:5px}
.site-footer>div>a span{margin-left:25px;color:var(--rose)}
.copyright{grid-column:1/-1;padding-top:25px;border-top:1px solid oklch(24% .029 210 / .25);font-size:10px}
.expedition-controls{position:fixed;bottom:0;left:0;width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:30px var(--page-gutter) 25px;z-index:var(--z-controls);background:linear-gradient(transparent,oklch(12% .023 215 / .82));transition:opacity .4s,visibility .4s;pointer-events:none}
.expedition-controls>*{pointer-events:auto}
.depth-readout{display:flex;align-items:center;gap:16px;min-height:44px}
.depth-label{font-size:10px;letter-spacing:.025em;color:var(--muted)}
.depth-number{font-size:18px;font-weight:450;font-variant-numeric:tabular-nums;min-width:88px}
.depth-unit{font-size:11px;margin-left:5px;color:var(--muted)}
.progress-track{display:block;width:100px;height:1px;background:var(--line);overflow:hidden}
#progress-line{display:block;width:100%;height:100%;background:var(--ivory);transform:scaleX(0);transform-origin:left center}
.control-actions{display:flex;align-items:center;gap:22px}
.sonar-button{display:flex;gap:12px;align-items:center;border:1px solid var(--line);background:oklch(15% .025 210 / .7);min-height:44px;font-size:11px;letter-spacing:.01em;padding:10px 18px;transition:background .3s,border-color .3s}
.sonar-button:hover{background:var(--rose);border-color:var(--rose)}
.sonar-icon{display:block;width:12px;height:12px;border:1px solid currentColor;border-radius:50%;position:relative}
.sonar-icon:after{content:'';position:absolute;inset:3px;background:currentColor;border-radius:50%}
.scene-options{position:relative;font-size:11px}
.scene-options .settings-toggle{display:flex;align-items:center;justify-content:center;gap:9px;min-height:44px;padding:10px 0;list-style:none;cursor:pointer}
.scene-options .settings-toggle::-webkit-details-marker{display:none}
.settings-icon{font-size:19px;line-height:1;transform:rotate(90deg)}
.options-panel{position:absolute;bottom:calc(100% + 16px);right:0;width:235px;padding:15px 20px;background:var(--deep);border:1px solid var(--line)}
.options-panel button{display:block;width:100%;min-height:46px;padding:10px 0;text-align:left;font-size:12px;border:0;border-bottom:1px solid var(--line);background:none}
.options-panel button[aria-pressed=true]{color:oklch(84% .1 340)}
.options-panel p{font-size:10px;color:var(--muted);margin-top:15px;line-height:1.5}
body.is-logbook .expedition-controls,body.at-footer .expedition-controls{visibility:hidden;opacity:0;pointer-events:none}
.scene-status{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);max-width:calc(100vw - 40px);padding:12px 20px;background:var(--deep);font-size:12px;text-align:center;z-index:var(--z-status)}
.scene-status:empty{display:none}
#observation-dialog{padding:0;border:0;width:min(960px,calc(100vw - 56px));max-height:calc(100svh - 70px);background:var(--ivory);color:var(--ink);overflow:auto;color-scheme:light}
#observation-dialog::backdrop{background:oklch(8% .025 220 / .86)}
.close-dialog{position:absolute;z-index:1;right:14px;top:12px;display:grid;place-items:center;width:44px;height:44px;border:0;background:var(--ivory);color:var(--ink);font-size:32px;line-height:1}
.dialog-layout{display:grid;grid-template-columns:1fr 1.05fr}
.dialog-image{width:100%;height:100%;max-height:calc(100svh - 70px);object-fit:cover;min-height:590px}
.dialog-copy{display:flex;flex-direction:column;justify-content:center;padding:58px 42px 38px}
.dialog-label{font-size:10px;letter-spacing:.05em;margin-bottom:25px}
.dialog-copy h2{font-size:55px;line-height:1.06;margin-bottom:28px}
.dialog-copy>p:not(.dialog-label){font-size:13px;line-height:1.8;margin-bottom:20px}
.dialog-copy>a{font-size:12px;margin-top:5px;align-self:flex-start}
.dialog-credit{font-size:10px;margin-top:35px;color:oklch(42% .024 210)}

@media(min-width:1600px){.hero-content{max-width:1350px}.hero-bottom{width:790px}.observation-chapter{gap:16vw}.jelly-plate{max-width:490px}}
@media(max-width:1100px){.header-note{display:none}.hero-margin-note{display:none}.hero-bottom{max-width:650px}.canyon-plate{width:78%}.canyon-footnote{font-size:11px}.observation-chapter{gap:8vw;padding-left:8vw;padding-right:8vw}.observation-copy h2{font-size:clamp(43px,5.6vw,66px)}.project-intro{gap:8vw}.source-notes{gap:25px}.field-notes{gap:6vw;grid-template-columns:1fr 2fr}.dialog-copy{padding:55px 30px 30px}}
@media(max-width:760px){
  :root{--page-gutter:24px}
  html{scroll-padding-top:35px}
  .site-header{padding-top:27px;padding-bottom:20px;gap:20px}
  .wordmark{font-size:23px}
  .menu-toggle{display:flex;align-items:center;gap:10px;margin-left:auto;min-width:68px;min-height:44px;padding:0;border:0;background:none;font-size:12px;position:relative;z-index:var(--z-menu)}
  .menu-mark{width:17px;height:7px;border-top:1px solid currentColor;border-bottom:1px solid currentColor}
  .main-nav{display:none;position:absolute;left:0;top:0;width:100%;padding:105px 24px 26px;background:var(--deep);margin:0;border-bottom:1px solid var(--line);gap:3px;align-items:stretch;flex-direction:column}
  #menu-toggle[aria-expanded=true]+.main-nav,.main-nav.is-open,body.menu-open .main-nav{display:flex}
  .main-nav a{min-height:48px;padding:10px 0;font-size:17px}
  .main-nav a:after{display:none}
  .chapter{padding:100px var(--page-gutter);min-height:90svh}
  .hero{min-height:max(730px,100svh);padding:150px var(--page-gutter) 180px;align-items:center}
  .hero h1{font-size:clamp(44px,8.4vw,64px);line-height:1.12;letter-spacing:-.037em}
  .expedition-kicker{font-size:9px;letter-spacing:.16em;margin-bottom:28px}
  .expedition-kicker span{padding:0 8px}
  .hero-bottom{display:block;margin-top:26px}
  .hero-bottom p{font-size:13px;line-height:1.8}
  .primary-link{margin-top:30px;font-size:12px;gap:35px;padding-left:20px;min-height:50px}
  .scroll-note{bottom:116px;font-size:10px}
  h2{font-size:clamp(43px,8.4vw,62px)}
  .descent{display:block;min-height:108svh;padding-top:150px;padding-bottom:100px}
  .chapter-copy{max-width:380px}
  .chapter-copy>p:not(.depth-caption){font-size:15px;margin-top:24px}
  .chapter-copy .quiet-copy{font-size:12px!important}
  .descent-aside{padding:60px 0 0 45%;font-size:25px}
  .vertical-rule{height:45px;margin-bottom:20px}
  .depth-caption{font-size:11px;margin-bottom:20px}
  .canyon-chapter{padding-top:100px;padding-bottom:125px}
  .canyon-heading{display:block}
  .canyon-heading>p{font-size:13px;margin-top:25px;padding:0}
  .canyon-plate{width:100%;margin-top:40px}
  .canyon-plate img{aspect-ratio:1.22}
  .photo-plate figcaption{font-size:9px;padding-top:12px;gap:10px}
  .canyon-footnote{width:100%;max-width:38ch;padding:0;margin:32px 0 0 auto;font-size:11px}
  .observation-chapter{display:flex;flex-direction:column;gap:45px;align-items:stretch;min-height:auto;padding:80px var(--page-gutter) 140px}
  .jelly-plate{width:78%;max-width:370px;transform:none;order:2;align-self:flex-end;margin-top:5px}
  .observation-copy{max-width:400px;order:1}
  .observation-copy h2{font-size:clamp(49px,10vw,70px)}
  .observation-copy h2 br:nth-of-type(2){display:none}
  .observation-copy h2 em:before{content:' '}
  .observation-copy>p:not(.depth-caption){font-size:14px;max-width:36ch;margin-top:25px}
  .text-button{font-size:12px;margin-top:18px;width:100%;max-width:310px}
  .abyss-chapter{min-height:100svh;padding-top:130px;padding-bottom:150px}
  .abyss-chapter h2{font-size:clamp(39px,7.8vw,59px);line-height:1.22}
  .abyss-coordinate{font-size:10px;margin-bottom:28px}
  .abyss-chapter>p:not(.abyss-coordinate){font-size:13px}
  .return-link{margin-top:32px}
  .logbook{padding:35px var(--page-gutter) 75px}
  .logbook-topline{font-size:9px;gap:12px}
  .project-intro{display:block;margin:65px 0 60px}
  .project-intro h2{font-size:clamp(53px,11vw,75px)}
  .project-story{margin-top:38px;max-width:none}
  .project-story .project-lead{font-size:21px;max-width:28ch}
  .project-story p{font-size:13px}
  .project-link{font-size:12px}
  .deck-plate{width:100%;margin:0}
  .deck-plate img{aspect-ratio:1.25}
  .deck-plate figcaption{font-size:10px}
  .field-notes{display:block;margin-top:65px;padding-top:28px}
  .field-notes h3{font-size:35px;margin-bottom:30px}
  .source-notes{display:block}
  .source-notes p{font-size:12px;margin-bottom:30px}
  .note-index{margin-bottom:8px}
  .source-notes a{font-size:11px}
  .site-footer{display:flex;flex-direction:column;gap:30px;padding:0 var(--page-gutter) 35px}
  .footer-wordmark{font-size:clamp(58px,15vw,105px);width:100%}
  .site-footer>div{align-self:flex-start;margin-top:4px}
  .site-footer p{font-size:11px}
  .site-footer>div>a{font-size:16px}
  .copyright{margin-top:15px;padding-top:20px;font-size:9px;width:100%}
  .expedition-controls{padding:23px 18px max(17px,env(safe-area-inset-bottom));gap:12px}
  .depth-readout{display:block;min-width:67px}
  .depth-label{display:block;font-size:8px;line-height:1.3}
  .depth-number{display:block;font-size:17px;min-width:66px;line-height:1.5}
  .depth-unit{font-size:9px;margin-left:4px}
  .progress-track{width:65px;margin-top:3px}
  .control-actions{gap:13px}
  .sonar-button{padding:10px 12px;font-size:10px;min-height:44px;gap:9px}
  .scene-options .settings-toggle{min-width:44px;gap:0;padding:10px;font-size:0}
  .settings-icon{font-size:21px}
  .options-panel{right:0;bottom:calc(100% + 15px);width:235px}
  .scene-status{bottom:94px;font-size:11px;padding:10px 15px;width:max-content}
  #observation-dialog{width:calc(100vw - 24px);max-height:calc(100svh - 24px)}
  .dialog-layout{display:block}
  .dialog-image{min-height:0;max-height:none;height:42svh;object-position:center 40%}
  .dialog-copy{padding:30px 25px}
  .dialog-label{font-size:9px;margin-bottom:17px}
  .dialog-copy h2{font-size:44px;margin-bottom:20px}
  .dialog-copy h2 br{display:none}
  .dialog-copy>p:not(.dialog-label){font-size:12px;margin-bottom:15px}
  .dialog-credit{font-size:9px;margin-top:27px}
  .close-dialog{position:sticky;float:right;margin-bottom:-44px;top:10px;right:10px;transform:translate(-10px,10px);width:44px;height:44px}
}
@media(max-width:380px){:root{--page-gutter:20px}.hero h1{font-size:41px}.hero{min-height:710px}.control-actions{gap:5px}.expedition-controls{padding-left:15px;padding-right:15px}.sonar-button{padding-left:9px;padding-right:9px}.jelly-plate{width:86%}.observation-copy h2{font-size:46px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.image-button:hover img,.primary-link:hover{transform:none}#ocean-canvas{opacity:0!important}.jelly-plate{transform:none}}
body.reduced-motion,body.motion-reduced{scroll-behavior:auto}
body.reduced-motion *,body.motion-reduced *{transition:none!important;animation:none!important}
@media print{.ocean-stage,.site-header,.expedition-controls,.scene-status,.skip-link,dialog{display:none!important}html,body{background:white;color:black}.chapter{min-height:0;padding:30px 0;break-inside:avoid}.hero{min-height:0}h1{font-size:40px}h2{font-size:32px}.hero-margin-note,.scroll-note,.descent-aside{display:none}.logbook,.site-footer{background:white;color:black;padding:25px 0}.hero-bottom,.canyon-heading{display:block}.observation-chapter,.project-intro,.field-notes{display:block}.photo-plate,.deck-plate{width:50%;margin:20px 0}.jelly-plate{transform:none}.canyon-footnote{width:auto;margin:20px 0}.quiet-copy,.depth-caption,.photo-plate figcaption,.abyss-coordinate,.abyss-chapter>p:not(.abyss-coordinate){color:black}}
/* Runtime state contract: app.js owns documentElement state. */
html.scene-ready #ocean-canvas{opacity:1}
html.scene-ready #scene-poster{opacity:var(--poster-opacity,1);z-index:1}
html:not(.scene-ready) #scene-poster,html[data-motion='reduced'] #scene-poster{opacity:1}
html[data-motion='reduced'] #ocean-canvas{opacity:0;visibility:hidden}
html[data-motion='reduced']{scroll-behavior:auto}
html[data-motion='reduced'] *,html[data-motion='reduced'] *::before,html[data-motion='reduced'] *::after{animation:none!important;transition:none!important}
.ocean-shade{z-index:2}
#progress-line{transform:scaleX(var(--progress,0))}
body.is-logbook #expedition-controls{opacity:0;visibility:hidden;pointer-events:none}
html:not(.js-enabled) #expedition-controls{display:none}
@media(max-width:700px){html:not(.js-enabled) .menu-toggle{display:none}html:not(.js-enabled) .main-nav{position:static;display:flex;flex-wrap:wrap;gap:12px;background:none;padding:0;margin-left:auto;opacity:1;visibility:visible;transform:none}html:not(.js-enabled) .site-header{gap:18px;align-items:flex-start}html:not(.js-enabled) .main-nav a{font-size:12px}}

/* A real volumetric specimen is composited by the ocean's single renderer. */
.specimen-ready .jelly-plate .image-button { background:transparent;cursor:grab;touch-action:pan-y; }
.specimen-ready .jelly-plate .image-button img { opacity:0; }
.specimen-ready .jelly-plate .image-button.is-dragging { cursor:grabbing; }
.specimen-help { margin:18px 0 0;font-size:11px;line-height:1.65;letter-spacing:.025em;color:#b7c9c6;text-align:center; }
.live-help { display:none; }
.specimen-ready .live-help { display:inline; }
.specimen-ready .static-help { display:none; }
#jelly-hit-layer { position:fixed;inset:0;z-index:2;pointer-events:none;display:none; }
.scene-ready #jelly-hit-layer { display:block; }
.jelly-hit { position:absolute;left:0;top:0;padding:0;border:1px solid transparent;border-radius:50%;background:transparent;pointer-events:auto;cursor:crosshair; }
.jelly-hit[hidden] { display:none; }
.jelly-hit:hover { border-color:rgba(161,235,212,.16); }
.jelly-hit:focus-visible { outline:1px solid #a1ebd4;outline-offset:5px;background:rgba(161,235,212,.04); }
body.is-logbook #jelly-hit-layer { display:none; }

.sr-only { position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0; }
.specimen-ready .jelly-plate .image-button > * { pointer-events:none;user-select:none; }

.jelly-interaction-hint { display:none; }
.scene-ready .observation-copy .jelly-interaction-hint { display:block;margin:20px 0 0;font-size:12px;line-height:1.6;color:#b7c9c6; }


/* A continuous filmed passage, revealed in the rendered canyon by native scroll. */
.canyon-chapter{min-height:300svh;padding:0;display:block;isolation:isolate;--canyon-opacity:1;--canyon-heading-opacity:1;--canyon-scale:1;--canyon-offset:0px}
.canyon-sticky{position:sticky;top:0;height:100svh;min-height:620px;overflow:hidden;padding:12svh var(--page-gutter);isolation:isolate}
.canyon-heading{position:relative;z-index:2;display:block;width:100%;max-width:1110px;margin:auto;pointer-events:none;opacity:var(--canyon-heading-opacity)}
.canyon-heading h2{max-width:7.6em;text-shadow:0 2px 24px #021014a0}
.canyon-heading>p{max-width:27ch;margin:24px 0 0;padding:0;color:var(--ivory);font-size:15px;text-shadow:0 1px 12px #021014}
.canyon-plate{position:absolute;z-index:1;inset:0;width:100%;max-width:none;margin:0;opacity:var(--canyon-opacity);transform:translateY(var(--canyon-offset)) scale(var(--canyon-scale));pointer-events:none}
.canyon-window{position:absolute;inset:0;overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 10%,#000 92%,transparent),linear-gradient(180deg,transparent,#000 17%,#000 79%,transparent);mask-composite:intersect;-webkit-mask-composite:source-in}
.canyon-window img,.canyon-window video{position:absolute;inset:0;width:100%;height:100%;aspect-ratio:auto;object-fit:cover;object-position:60% 50%;filter:saturate(.96) brightness(.96);transform:none}
.canyon-window video{opacity:0}
.canyon-film-ready .canyon-window video{opacity:1}
.canyon-film-ready .canyon-window img{opacity:0}
.canyon-plate figcaption{position:absolute;bottom:12%;left:var(--page-gutter);right:var(--page-gutter);font-size:10px;opacity:.8}
.canyon-footnote{position:absolute;z-index:2;bottom:18%;left:var(--page-gutter);width:27%;max-width:31ch;margin:0;padding:0;color:var(--ivory);font-size:12px;text-shadow:0 1px 14px #021014}
.canyon-footnote a{pointer-events:auto}
@media(max-width:760px){
 .canyon-chapter{min-height:280svh}
 .canyon-sticky{min-height:650px;padding-top:10svh}
 .canyon-heading h2{font-size:clamp(43px,10vw,68px)}
 .canyon-heading>p{font-size:14px;margin-top:20px}
 .canyon-window{inset:0 -20% 5%;mask-image:linear-gradient(90deg,transparent,#000 14%,#000 86%,transparent),linear-gradient(180deg,transparent,#000 22%,#000 75%,transparent)}
 .canyon-window img,.canyon-window video{object-position:69% 50%}
 .canyon-footnote{bottom:14%;width:65%;max-width:31ch;font-size:11px}
 .canyon-plate figcaption{bottom:9%;font-size:9px}
}
html[data-motion="reduced"] .canyon-chapter,html:not(.js-enabled) .canyon-chapter{min-height:110svh}
html[data-motion="reduced"] .canyon-sticky,html:not(.js-enabled) .canyon-sticky{position:relative;height:110svh}
html[data-motion="reduced"] .canyon-plate{opacity:1;transform:none}
html[data-motion="reduced"] .canyon-heading{opacity:1}
html[data-motion="reduced"] .canyon-window video{display:none}
html[data-motion="reduced"] .canyon-window img{opacity:1}
@media print{.canyon-chapter{min-height:0}.canyon-sticky{position:relative;height:auto;min-height:0;overflow:visible;padding:25px 0}.canyon-heading{opacity:1}.canyon-plate{position:relative;inset:auto;width:100%;height:350px;opacity:1;transform:none}.canyon-window{inset:0;mask-image:none}.canyon-window video{display:none}.canyon-film-ready .canyon-window img{opacity:1}.canyon-footnote{position:relative;inset:auto;width:100%;margin-top:15px}}

/* Shared GPU water/film layer keeps the foreground canyon continuous. */
.canyon-gpu .canyon-window{visibility:hidden}
.canyon-gpu .canyon-plate{transform:none}
.scene-options{z-index:10;isolation:isolate;pointer-events:auto}
.scene-options .settings-toggle{min-width:100px;padding:10px 12px;border:1px solid transparent;border-radius:2px}
.scene-options.is-open .settings-toggle{background:#163137;border-color:var(--line)}
.scene-options.is-open .options-panel{display:block;visibility:visible;pointer-events:auto;z-index:12;box-shadow:0 12px 50px #0006}
.observation-chapter{grid-template-columns:minmax(0,1.18fr) minmax(0,1fr);gap:clamp(28px,4vw,70px);padding-left:8vw;padding-right:10vw}
.jelly-plate{max-width:570px;transform:translateY(12px);justify-self:end}
.specimen-ready .image-button img{aspect-ratio:1/1.16}
.specimen-copy-hint{font-size:12px!important;max-width:26ch;color:#b9d5ce}
@media(max-width:760px){
 .scene-options .settings-toggle{min-width:48px;min-height:48px;padding:10px}
 .observation-chapter{gap:20px;padding-left:var(--page-gutter);padding-right:var(--page-gutter)}
 .jelly-plate{width:100%;max-width:470px;align-self:center;transform:none;margin-top:0}
}

/* Explicit settings disclosure; no dependency on native details behavior. */
.settings-toggle{position:relative;z-index:2;background:transparent;color:var(--ivory);font:inherit;cursor:pointer;touch-action:manipulation;pointer-events:auto}
.settings-toggle>*{pointer-events:none}
.options-panel[hidden]{display:none!important}
.options-panel{z-index:3;pointer-events:auto}
.specimen-help{margin-top:8px;text-align:right;padding-right:3%;font-size:11px;color:#c2d8d2}
.specimen-drag-hint{display:block;margin-top:4px;font-size:10px;color:#93aaa5}
.specimen-help span[aria-hidden]{display:inline-block;margin-left:5px}
@media(hover:hover) and (pointer:fine){.jelly-plate:has(.image-button:hover) .specimen-help{color:#e4fff4}}
@media(max-width:760px){.settings-toggle>span:last-child{display:none}.specimen-help{text-align:center;padding-right:0}}

/* One compact caption, aligned beneath the specimen rather than four corners. */
.jelly-plate .specimen-caption{display:block;width:100%;max-width:370px;margin:12px auto 0;padding:16px 0 0;border-top:1px solid #b7c9c633;text-align:left;letter-spacing:0}
.specimen-caption-title{display:block;font-size:13px;font-weight:500;line-height:1.4;color:#d9e7e1}
.specimen-caption .specimen-help{margin:7px 0 0;padding:0;text-align:left;font-size:11px;line-height:1.6;letter-spacing:0;color:#a8bfba}
.specimen-caption .caption-divider{margin:0 9px;color:#718d86}
@media(max-width:380px){.specimen-caption .specimen-help{font-size:10px}.specimen-caption .caption-divider{margin:0 6px}}

/* Settings use the browser top layer, outside the WebGL/figure stacking contexts. */
#options-panel[popover]{position:fixed;inset:auto var(--page-gutter) 94px auto;margin:0;width:min(270px,calc(100vw - 32px));max-height:calc(100dvh - 120px);overflow:auto;padding:16px 22px;color:var(--ivory);background:var(--deep);border:1px solid var(--line)}
#options-panel:not(:popover-open){display:none!important}
#options-panel:popover-open{display:block;visibility:visible;pointer-events:auto}
.settings-toggle:hover{background:#163137;border-color:var(--line)}
@media(max-width:760px){#options-panel[popover]{right:16px;bottom:90px}}

#options-panel[data-fallback]{display:none!important}
#options-panel[data-fallback][data-open]{display:block!important;visibility:visible;z-index:100;pointer-events:auto}

/* Client-facing exploration panel: destinations first, comfort second. */
#options-panel[popover]{width:min(350px,calc(100vw - 32px));padding:24px;background:#082126;box-shadow:0 18px 70px #0006}
.options-heading{position:relative;padding-right:32px;margin-bottom:20px}
.options-kicker{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.16em;color:#aac2bf}
.options-heading h2{font:400 25px/1.2 var(--display);margin:8px 0 0}
#options-panel #options-close{position:absolute;right:-8px;top:-10px;width:40px;min-height:40px;font-size:25px;padding:0;border:0;text-align:center}
.options-destinations a{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:15px 0;border-bottom:1px solid var(--line);font-size:15px;text-decoration:none}
.options-destinations small,.options-contact small{display:block;font-size:12px;line-height:1.5;color:#adc5c1;margin-top:5px}
#options-panel button{font-size:13px;min-height:44px;text-align:left}
#options-panel #fullscreen-toggle{display:flex;justify-content:space-between;padding:14px 0;margin-top:4px}
#options-panel #fullscreen-toggle[hidden]{display:none}
.options-comfort{padding:18px 0 12px}
.options-comfort .options-kicker{margin-bottom:7px}
#options-panel .options-comfort button{padding:10px 0;border:0}
#options-panel button[aria-pressed=true]{color:#aff1dc}
#options-panel button:disabled{opacity:.6;cursor:default}
#options-panel a:hover,#options-panel button:hover{color:#b7f5df}
#options-panel :focus-visible{outline:2px solid #b7f5df;outline-offset:4px}
.options-contact{display:block;padding-top:18px;border-top:1px solid var(--line);font-size:14px;text-decoration:none}
.options-contact>span{float:right}
@media(max-height:670px){#options-panel[popover]{padding:18px}.options-heading{margin-bottom:8px}.options-destinations a{padding:10px 0}.options-comfort{padding:10px 0}}

/* An unseen light source rises through deep water during real preparation. */
.entry-loader{display:none}
html.entry-loading{overflow:hidden}
.entry-loader[open]{display:block;position:fixed;inset:0;width:100vw;height:100dvh;max-width:none;max-height:none;margin:0;border:0;padding:0;background:#020e15;color:#e1f1e9;overflow:hidden;opacity:1;transition:opacity .65s ease}
.entry-loader::backdrop{background:#020e15}
.entry-loader.entry-leaving{opacity:0}
.entry-loader:focus{outline:none}
#entry-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.entry-top{position:absolute;top:36px;left:4.5vw;right:4.5vw;display:flex;justify-content:space-between;align-items:center;font-size:11px;letter-spacing:.08em}
.entry-top>span:first-child{font-size:24px;font-weight:500;letter-spacing:.12em}.entry-top>span:first-child>span{color:#bde8cd}
.entry-top>span:last-child{color:#a3bdb8}
.entry-copy{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding-bottom:9vh;pointer-events:none;text-align:center}
.entry-copy h2{font:400 13px/1.5 var(--body);letter-spacing:.08em;margin:0 0 20px;color:#b4cec6}
.entry-count{display:flex;align-items:baseline;gap:10px;font:300 clamp(74px,9vw,96px)/1 var(--body);letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.entry-count small{font-size:20px;letter-spacing:0;color:#b4d8cb}
.entry-copy p{font:400 12px/1.5 var(--body);color:#accbc0;margin:24px 0 0;letter-spacing:.025em}
.entry-bottom{position:absolute;left:4.5vw;right:4.5vw;bottom:32px;display:flex;justify-content:space-between;align-items:center;gap:24px;font-size:11px;color:#b3d2c7}
#entry-fallback{font:inherit;color:inherit;border:0;border-bottom:1px solid #7fa697;padding:8px 0;background:none;cursor:pointer}
#entry-fallback:focus-visible{outline:2px solid #bde8cd;outline-offset:5px}
@media(max-width:760px){.entry-top{top:26px;left:24px;right:24px}.entry-top>span:last-child{max-width:115px;font-size:9px;line-height:1.5;text-align:right}.entry-copy{padding-bottom:8vh}.entry-count{font-size:84px}.entry-bottom{left:24px;right:24px;bottom:26px;font-size:10px;gap:14px}}
@media(prefers-reduced-motion:reduce){.entry-loader[open]{transition:none}}


/* Deterministic extraction of the original translucent tissue, only on the page. */
.specimen-matte-defs{position:absolute;overflow:hidden;pointer-events:none}
#specimen-control{background:transparent}
#specimen-control>img{filter:url(#specimen-water-matte);background:transparent}
html:not(.specimen-ready) #specimen-control:hover>img,html:not(.specimen-ready) #specimen-control:focus-visible>img{filter:url(#specimen-water-matte) brightness(1.15)}