@font-face{font-family:Fraunces;src:url(fraunces-400-normal.woff2) format('woff2');font-weight:400;font-display:swap}@font-face{font-family:Fraunces;src:url(fraunces-400-italic.woff2) format('woff2');font-weight:400;font-style:italic;font-display:swap}@font-face{font-family:DM;src:url(dm-sans-400-normal.woff2) format('woff2');font-weight:400;font-display:swap}@font-face{font-family:DM;src:url(dm-sans-600-normal.woff2) format('woff2');font-weight:600;font-display:swap}
:root{color-scheme:dark;--bg:#081e2b;--surface:#102d3d;--text:#eff7fb;--muted:#b6cdd9;--line:#426173;--water:#86ccef;--route:#ffdc96;--basin:#8de0c4;--land:#102937;--river:#366580;--river-major:#6098b7;--border:#7595a5;--button-ink:#081e2b;--shadow:#061822;--hover:#1b3b4c}
:root[data-theme=light]{color-scheme:light;--bg:#edf5f8;--surface:#deedf3;--text:#112e40;--muted:#2c4b60;--line:#92adb9;--water:#084e6b;--route:#713b00;--basin:#08644f;--land:#e0edf2;--river:#9dbfce;--river-major:#54869e;--border:#6a8b9c;--button-ink:#fff;--shadow:#c9dce5;--hover:#cedfe8}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:75px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 DM,Arial,sans-serif}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}a{color:inherit;text-underline-offset:.25em}button,select{color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:5px}button{cursor:pointer;min-height:44px;padding:9px 16px}button:hover,select:hover{background:var(--hover)}button:disabled{opacity:.6;cursor:wait}:focus-visible{outline:3px solid var(--route);outline-offset:5px}header{display:flex;align-items:center;justify-content:space-between;max-width:1600px;margin:auto;padding:22px 4%}.wordmark{text-decoration:none;font-size:14px}.wordmark span{color:var(--muted)}header nav{display:flex;align-items:center;gap:18px}.language{font-size:13px;letter-spacing:.08em}#theme{font-size:25px;line-height:1;padding:0;width:44px;border-radius:50%;background:transparent}h1,h2,h3,p,figure{margin:0}h1,h2,h3{font-family:Fraunces,Georgia,serif;font-weight:400}h1{font-size:clamp(60px,5.4vw,82px);line-height:1.05;letter-spacing:-.06em;margin:25px 0 26px}h1 em{color:var(--water);font-weight:400}h2{font-size:clamp(34px,3.8vw,58px);line-height:1.15;letter-spacing:-.045em}h3{font-size:30px;line-height:1.2;letter-spacing:-.025em}.eyebrow{color:var(--muted);font-size:11px;letter-spacing:.15em;font-weight:600;line-height:1.6}.hero{max-width:1600px;margin:15px auto 0;padding:0 4% 30px;display:grid;grid-template-columns:minmax(350px,.92fr) minmax(0,1.35fr);column-gap:38px}.intro{padding-top:25px;z-index:1}.deck{font-size:18px;line-height:1.65;max-width:460px;color:var(--text)}.sourcecue{font-size:11px;line-height:1.8;color:var(--muted);margin-top:21px}.place-control{margin-top:26px;max-width:370px}.place-control label{display:block;font-size:12px;margin-bottom:7px;color:var(--muted)}select{min-height:46px;width:100%;padding:10px 35px 10px 12px}.map-panel{min-width:0;padding-top:10px}.mode-switch{display:flex;justify-content:center;gap:4px}.mode-switch button{background:transparent;border-color:transparent;color:var(--muted);font-size:13px}.mode-switch button[aria-pressed=true]{color:var(--text);background:var(--surface);border-color:var(--line)}.map-wrap{height:530px;position:relative}#map{width:100%;height:100%;display:block;cursor:crosshair;touch-action:pan-y}.fit{position:absolute;bottom:8px;right:5px;width:40px;font-size:24px;padding:0;background:var(--bg)}.compass{position:absolute;top:20px;right:20px;text-align:center;font-size:11px;color:var(--muted);line-height:1.4;pointer-events:none}#map-message{position:absolute;top:45%;left:10%;width:80%;text-align:center;padding:15px;background:var(--surface);border-radius:6px}#map-message[hidden]{display:none}.map-caption{display:flex;justify-content:space-between;gap:12px;font-size:11px;color:var(--muted)}#scale{white-space:nowrap;border-top:1px solid var(--muted);min-width:0;text-align:center}.legend{display:flex;gap:20px;font-size:11px;color:var(--muted);margin-top:10px;justify-content:center}.legend span{display:flex;gap:6px;align-items:center}.key{display:block;width:17px;height:2px;background:var(--water)}.key-1{background:var(--route)}.key-2{height:9px;background:var(--basin)}.result-panel{grid-column:1/-1;display:grid;grid-template-columns:1fr auto;gap:22px;border-top:1px solid var(--line);padding:24px 0 20px;margin-top:24px;align-items:center}#result h2{font-size:clamp(24px,2.5vw,37px);margin:7px 0 8px;line-height:1.3;letter-spacing:-.025em}#result p:not(.eyebrow){font-size:12px;color:var(--muted)}.result-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;max-width:350px}.result-actions button{font-size:12px}.primary{background:var(--water);border-color:var(--water);color:var(--button-ink)}.primary:hover{background:var(--text);color:var(--bg)}#share-status{font-size:12px;flex-basis:100%}.up-options{grid-column:1/-1;max-width:600px}.up-options label{font-size:12px;display:block;margin-bottom:5px}.map-bottom{grid-column:1/-1;display:flex;gap:50px;color:var(--muted);font-size:12px}.map-bottom>p{max-width:690px}.map-bottom details{min-width:230px}summary{cursor:pointer;min-height:44px;padding:10px 0}#coordinate-form{display:flex;flex-wrap:wrap;gap:8px;max-width:400px;margin:12px 0}#coordinate-form label{flex:1;min-width:100px}input{display:block;background:var(--surface);color:var(--text);border:1px solid var(--line);padding:8px;min-height:44px;width:100%;border-radius:4px}#coordinate-form button{font-size:12px}.section-nav{position:sticky;top:0;z-index:5;display:flex;justify-content:center;gap:45px;background:var(--bg);border-block:1px solid var(--line);padding:14px 20px;font-size:12px}.section-nav a{text-decoration:none;padding:4px 0}.section{max-width:1350px;margin:auto;padding:100px 5%}.section-heading{max-width:850px}.section-heading .eyebrow{margin-bottom:24px}.section-heading>p:last-child{color:var(--muted);margin-top:24px;font-size:18px}.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:55px;margin-top:60px}.story-symbol{font-family:Fraunces,serif;font-size:70px;color:var(--water);line-height:1.2;display:block;margin-bottom:15px}.story-grid p{margin-top:20px;font-size:15px;line-height:1.8;color:var(--muted)}.text-action{padding:10px 0;background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0;text-align:left;font-size:13px;color:var(--water);margin-top:20px}.text-action:hover{background:transparent;border-color:var(--water)}.source-line{font-size:11px;color:var(--muted);margin-top:35px}.basin{display:grid;grid-template-columns:1fr 1fr;gap:75px;align-items:center;border-top:1px solid var(--line)}.basin h2{margin:24px 0}.basin p:not(.eyebrow){font-size:15px;color:var(--muted);margin-top:20px}figure img{display:block;width:100%;height:auto}figcaption{font-size:11px;line-height:1.8;color:var(--muted);margin-top:13px}.basin figure img{aspect-ratio:4/5;object-fit:cover}.delta{border-top:1px solid var(--line);display:grid;grid-template-columns:.65fr 1fr;gap:60px;align-items:start}.delta-copy{position:sticky;top:115px}.delta h2{margin:25px 0}.delta-copy>p:last-child{color:var(--muted);font-size:17px}.delta figure img{border-radius:50%;border:1px solid var(--line)}.method{border-top:1px solid var(--line);max-width:1120px}.method h2{margin:24px 0}.method-intro{font-size:18px;max-width:800px;color:var(--muted)}.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:35px 65px;margin:45px 0 65px}.method-grid h3{font-size:25px}.method-grid p{font-size:14px;margin-top:15px;color:var(--muted)}.method>p{margin-top:15px}.sources{font-size:13px;padding-left:20px;color:var(--muted)}.sources li{padding:8px 0}.licence{font-size:12px;color:var(--muted);border-top:1px solid var(--line);margin-top:30px}.licence p{margin:15px 0}footer{border-top:1px solid var(--line);padding:30px 4%;display:flex;justify-content:space-between;gap:25px;font-size:12px;color:var(--muted)}footer>div{display:flex;gap:25px}.skip{position:fixed;top:-100px;left:20px;padding:10px;background:var(--text);color:var(--bg);z-index:10}.skip:focus{top:10px}[hidden]{display:none!important}
@media(min-width:1550px){.map-wrap{height:590px}}@media(max-width:1000px){.hero{column-gap:15px;grid-template-columns:.85fr 1.15fr}h1{font-size:65px}.deck{font-size:16px}.map-wrap{height:490px}.story-grid{gap:30px}.basin,.delta{gap:35px}.result-actions{max-width:210px}.wordmark span{display:none}}
@media(max-width:700px){header{padding:15px 6%}.hero{display:flex;flex-direction:column;padding:0 6% 25px;margin-top:4px}.intro{padding-top:12px}h1{font-size:49px;line-height:1.04;margin:15px 0 18px;letter-spacing:-.06em}h1 br{display:none}.eyebrow{font-size:9px;letter-spacing:.12em}.deck{font-size:14px;line-height:1.65;max-width:none}.sourcecue{font-size:10px;margin-top:12px}.sourcecue br{display:none}.sourcecue a{margin-left:5px}.place-control{margin-top:14px;max-width:none}.place-control label{font-size:11px;margin-bottom:4px}select{font-size:13px;min-height:44px}.map-panel{padding-top:16px}.mode-switch{justify-content:flex-start}.mode-switch button{font-size:12px;padding:7px 11px;min-height:42px}.map-wrap{height:280px;margin:0 -12px}.compass{top:5px;right:15px}.map-caption{font-size:10px}.map-caption span:first-child{max-width:240px}.legend{font-size:9px;gap:12px;justify-content:flex-start;margin-top:8px}.result-panel{display:flex;flex-direction:column;align-items:stretch;margin-top:16px;padding:17px 0 12px;gap:12px}#result h2{font-size:24px;margin:5px 0}#result p:not(.eyebrow){font-size:11px}.result-actions{max-width:none;gap:8px}.result-actions button{font-size:11px;min-height:42px;padding:8px 12px}.map-bottom{flex-direction:column;gap:0;font-size:11px}.map-bottom details{min-width:0}.map-bottom>p{margin-top:5px}.section-nav{gap:20px;padding:10px 12px;font-size:11px}.section{padding:65px 6%}.section h2{font-size:37px}.section-heading .eyebrow{margin-bottom:16px}.section-heading>p:last-child{font-size:16px;margin-top:18px}.story-grid{grid-template-columns:1fr;gap:30px;margin-top:30px}.story-grid article{display:grid;grid-template-columns:45px 1fr;column-gap:18px}.story-symbol{grid-row:1/4;font-size:45px;margin:0}.story-grid h3{font-size:27px}.story-grid p{margin-top:12px;font-size:14px}.story-grid .text-action{grid-column:2;justify-self:start;margin-top:12px}.basin{display:flex;flex-direction:column-reverse;gap:35px}.basin figure img{aspect-ratio:4/3}.basin h2{margin:18px 0}.basin p:not(.eyebrow){font-size:14px}.delta{display:block}.delta-copy{position:static}.delta figure{margin-top:35px}.delta-copy>p:last-child{font-size:15px}.delta h2{margin:18px 0}.method-intro{font-size:16px}.method-grid{grid-template-columns:1fr;gap:30px;margin:35px 0 50px}.method-grid h3{font-size:25px}.method>h3{font-size:28px}footer{flex-direction:column;padding:25px 6%;font-size:11px}footer>div{gap:18px;flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

.zoom{position:absolute;right:5px;bottom:56px;display:flex;flex-direction:column;gap:4px}.zoom button{width:40px;min-height:36px;padding:0;font-size:20px;background:var(--bg)}