html{scroll-behavior:smooth}body[data-ui=tributaries] main{max-width:1440px;padding:0 4vw 50px}.tributary-hero{display:grid;grid-template-columns:1fr 1.1fr;gap:5%;align-items:center;padding:56px 0 45px}.tributary-hero h1{font-size:clamp(32px,4.5vw,64px)!important;margin:20px 0 24px}.tributary-hero h1 span{color:var(--ui-gold)}.hero-lead{font-size:25px;margin:0 0 14px}.hero-copy{max-width:42ch;color:var(--ui-muted);font-size:17px;line-height:1.75}.tributary-hero .actions{margin-top:28px;gap:22px;flex-wrap:wrap}.actions a:not(.primary){font-size:13px;color:#e3ce9e}.tributary-hero figure{margin:0;text-align:center;position:relative;background:radial-gradient(ellipse at center,#1b494a77,transparent 68%)}.tributary-hero figure img{width:110%;max-width:none;margin-left:-5%;height:auto;filter:drop-shadow(0 30px 28px #0005)}figcaption{font-size:12px;color:#b7c5b5;line-height:1.8;margin-top:18px}.chapter-strip{display:flex;justify-content:space-between;gap:24px;border-block:1px solid var(--ui-border);padding:23px 0;font:10px/1.6 var(--font-mono);letter-spacing:.12em;color:#cfc3a4}.section-head{display:flex;justify-content:space-between;align-items:end;gap:35px;padding:48px 0 28px}.section-head h2,.connection h2{font-size:clamp(30px,3.7vw,48px);line-height:1.1;margin:0}.section-head>p{font-size:14px;color:var(--ui-muted);line-height:1.8;margin:0}.worlds{display:grid;grid-template-columns:1fr 1fr;gap:28px}.world{border:1px solid var(--ui-border);border-radius:12px;overflow:hidden;background:#0a2732}.world-art{display:block;overflow:hidden;background:#103a37}.world-art img{display:block;width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;transition:transform .3s}.world-art:hover img{transform:scale(1.02)}.world-copy{padding:30px}.world-copy h3{font-size:36px;line-height:1.08;margin:12px 0 18px}.world-copy>p:not(.eyebrow){max-width:43ch;line-height:1.7;color:var(--ui-muted);font-size:15px}.world-copy>a{display:inline-flex;align-items:center;min-height:44px;color:#ebd8a8;font-size:14px}.world-status{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--ui-border);margin-top:22px;padding-top:18px;font:10px/1.6 var(--font-mono);color:#bdcdc0}.section-note{color:var(--ui-muted);font-size:12px;line-height:1.8;margin:20px 0}.connection{margin-top:46px;padding:42px 0;border-block:1px solid var(--ui-border);display:grid;grid-template-columns:1fr 1fr;gap:10%}.connection>div>p:not(.eyebrow){font-size:15px;line-height:1.8;color:var(--ui-muted)}.flow{list-style:none;padding:0;margin:8px 0 0;display:grid;gap:22px}.flow li{display:flex;gap:24px}.flow li>span{font:12px var(--font-mono);color:var(--ui-gold);padding-top:6px}.flow h3{font-size:23px;margin:0 0 10px}.flow p{font-size:14px;color:var(--ui-muted);line-height:1.75;margin:0}.habitat-toolbar{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:4px 0 18px}.habitat-toolbar>div{display:flex;gap:8px;flex-wrap:wrap}.habitat-toolbar button{min-height:44px;padding:10px 16px;font-size:11px;border:1px solid #afc5bf45;background:transparent;border-radius:7px;color:var(--ui-muted);cursor:pointer}.habitat-toolbar button[aria-pressed=true]{background:#eee4c8;color:#092631}.aquarium-stage{position:relative;width:100%;height:clamp(320px,48vw,590px);overflow:hidden;background:radial-gradient(ellipse,#153b44,#060f17 80%);border:1px solid #566b6890;border-radius:12px}.aquarium-stage>img{width:100%;height:100%;object-fit:contain;padding:20px 20px 70px;opacity:.85}.aquarium-stage canvas{width:100%;height:100%;display:block}.aquarium-stage canvas[hidden]{display:none}#open-water{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);white-space:nowrap;cursor:pointer;padding:15px 22px;font:600 13px var(--font-body)}#scene-status{position:absolute;bottom:12px;left:20px;right:20px;text-align:center;font-size:12px;color:#e8dec0;pointer-events:none}.habitat-caption{display:flex;justify-content:space-between;gap:16px;margin-top:18px}.habitat-caption strong{font-size:15px}.habitat-caption span{font:10px/1.6 var(--font-mono);color:#c4b88f}.record{margin-top:45px;padding:40px 0;border-block:1px solid var(--ui-border);display:grid;grid-template-columns:1fr 1fr;gap:10%}.record h2{font-size:36px;margin:0 0 18px}.record p{font-size:14px;color:var(--ui-muted);line-height:1.8}.record-status{align-self:center;padding:26px;border:1px solid #cdbd8d40;border-radius:9px;background:#b3c68f05}.record-status strong{font-size:15px}.record-status .fine{font-size:12px}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#cdbd8d;margin-right:10px}.creator{max-width:850px;text-align:center;margin:65px auto}.creator blockquote{font-size:clamp(27px,3.6vw,45px);line-height:1.25;margin:24px 0}.creator>p:not(.eyebrow){max-width:65ch;margin:20px auto;font-size:15px;color:var(--ui-muted);line-height:1.9}.creator .signature{color:var(--ui-gold)!important}.signature span{font-size:11px;display:block;color:var(--ui-muted)}.questions{border-top:1px solid var(--ui-border)}.questions p{font-size:14px;line-height:1.8;color:var(--ui-muted);max-width:85ch;padding-bottom:20px}footer{gap:20px}section[id]{scroll-margin-top:25px}@media(max-width:760px){.tributary-hero{grid-template-columns:1fr;padding:32px 0;gap:28px}.tributary-hero h1{font-size:clamp(32px,9vw,64px)!important}.tributary-hero figure{max-width:590px;margin:auto}.tributary-hero figure img{width:100%;margin:0}.section-head{display:block;padding-top:34px}.section-head>p{margin-top:20px}.worlds,.connection,.record{grid-template-columns:1fr;gap:28px}.world-copy{padding:24px}.world-copy h3{font-size:33px}.chapter-strip{flex-wrap:wrap;gap:12px;font-size:8px}.connection{margin-top:30px;padding:30px 0}.habitat-caption{flex-direction:column;gap:8px}.creator{margin:45px auto}.aquarium-stage{height:340px}.record{margin-top:30px}}@media(max-width:360px){.tributary-hero h1{font-size:32px!important}.world-status{flex-direction:column;gap:6px}.aquarium-stage{height:300px}#open-water{font-size:11px;padding:12px}.hero-copy{font-size:15px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.world-art img{transition:none}}

.story-link{display:inline-flex;align-items:center;min-height:44px;color:#e3ce9e;font-size:13px;text-decoration:underline;text-underline-offset:4px;margin-top:14px}

.worlds:has(>.world:only-child){grid-template-columns:1fr}.worlds>.world:only-child{display:grid;grid-template-columns:1.1fr 1fr;align-items:center}.worlds>.world:only-child .world-art{height:100%}.worlds>.world:only-child .world-art img{height:100%;object-fit:cover}@media(max-width:760px){.worlds>.world:only-child{grid-template-columns:1fr}}

.intro-film video{display:block;width:100%;height:auto;aspect-ratio:16/9;background:#061b24;border:1px solid var(--ui-border);border-radius:12px}

.world-art img{object-position:50% 30%}@media(min-width:1100px){.worlds{grid-template-columns:repeat(3,minmax(0,1fr))}.world-copy{padding:26px}.world-copy h3{font-size:32px}.world-status{gap:10px}}

.world-mystery{background:#12252c;border-color:#53616866}.mystery-art{display:grid;place-items:center;aspect-ratio:1200/630;background:radial-gradient(ellipse at 50% 80%,#63707824,transparent 65%),linear-gradient(140deg,#25333a,#16262d);border-bottom:1px solid #53616855}.mystery-art span{display:grid;place-items:center;width:84px;height:84px;border:1px solid #77858b55;border-radius:50%;color:#a7b1b4;font-size:56px;font-weight:300;line-height:1}.world-mystery h3{color:#c4cccc}.world-mystery .eyebrow,.world-mystery .world-status{color:#a3b1b5}.world-mystery .world-copy>p:not(.eyebrow){color:#aebabe}.world-copy{display:flex;flex-direction:column}.world-copy .world-status{margin-top:auto;padding-top:18px}.world-copy>p:not(.eyebrow){margin-bottom:24px}.world{display:flex;flex-direction:column}.world-copy{flex:1}
@media(min-width:761px){.worlds:has(.world-mystery){grid-template-columns:repeat(2,minmax(0,1fr))}}@media(min-width:1280px){.worlds:has(.world-mystery){grid-template-columns:repeat(4,minmax(0,1fr))}.worlds:has(.world-mystery) .world-copy{padding:24px}.worlds:has(.world-mystery) h3{font-size:30px}}