:root{--navy:#123643;--ink:#193540;--muted:#687b82;--green:#267d69;--teal:#278c84;--lime:#dcecc2;--blue:#617ca7;--line:#e0e7e7;--bg:#f3f6f5;--amber:#a96e1c;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button,a,input,select,summary,textarea{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #80b29a}button{border:0}a{color:inherit}.topbar{height:78px;background:var(--navy);color:white;display:flex;align-items:center;justify-content:space-between;padding:0 3.6%}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-size:21px;letter-spacing:-.7px}.brand strong{font-weight:500;color:#bcd4ca}.brand 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#fff}.map-label:before{display:none}.pond-label{color:#126147}.leaflet-container{font-family:inherit}.leaflet-control-attribution{font-size:7px!important}.leaflet-draw-tooltip{font-size:11px}.leaflet-editing-icon{width:11px!important;height:11px!important;background:#fff;border:2px solid var(--green);border-radius:3px}.results-panel{padding:23px 23px 0}.results-heading{display:flex;justify-content:space-between;gap:12px;align-items:center}.results-heading h2{font-size:18px}.results-heading p{font-size:10px;color:#8b9b97;margin:6px 0 0}.chart-tabs{display:flex;background:#f0f4f1;padding:3px;border-radius:5px;gap:2px}.chart-tabs button{font-size:8px;color:#7b8d85;padding:7px 10px;background:transparent;border-radius:3px}.chart-tabs button.active{background:#fff;color:var(--green);box-shadow:0 1px 4px #15342112}.chart-toolbar{margin:19px 0 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10px;white-space:nowrap}th:first-child,td:first-child{text-align:left;padding-left:0}th{font-weight:600;color:#829389;font-size:8px}td{color:#698277}td:first-child{color:#6c7c77}th:last-child,td:last-child{padding-right:0}.result-alerts p{font-size:9px;color:#936823;border-left:2px solid #d0a75e;background:#fffaf0;padding:8px 11px;margin:10px 0;line-height:1.6}.results-bottom{margin-top:14px;padding:12px 0;display:flex;justify-content:space-between;align-items:center;font-size:8px;color:#9aaa9f}.results-bottom i{font-style:normal;margin:0 5px}.export-actions{display:flex;gap:10px}.export-actions button{background:none;font-size:8px;color:#6f8b77;padding:5px 0}.learning-panel{background:#e8eee1;border:1px solid #dce5d4;border-radius:8px;padding:20px 23px;display:flex;gap:16px;align-items:flex-start}.learning-icon{border:1px solid #b6c9a8;color:#6c8755;border-radius:50%;width:28px;height:28px;display:grid;place-items:center;flex-shrink:0}.learning-panel .eyebrow{font-size:7px;color:#8b9f77;margin:0 0 7px}.learning-panel h3{margin:0;font-size:13px;color:#4b6840}.learning-panel p{font-size:10px;color:#829473;margin:7px 0 0;max-width:430px;line-height:1.7}.learning-panel details{min-width:170px;margin-left:auto;flex:1}.learning-panel summary{font-size:9px;color:#627e51;cursor:pointer;line-height:1.7}.learning-panel textarea{font-size:10px;background:#ffffffa0;margin-top:8px;min-width:180px}.learning-panel details small{font-size:8px;color:#7d936c}.page-footer{display:flex;gap:16px;align-items:center;justify-content:space-between;font-size:8px;color:#9ba9a2;padding:25px 0}.page-footer i{font-style:normal;margin:0 6px}.page-footer button{font-size:8px;color:#778f7b;background:none}.page-footer>span:last-child{font-size:7px;max-width:260px;text-align:right}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}dialog{max-width:790px;width:calc(100% - 32px);border:1px solid #cedbd4;border-radius:12px;padding:27px 30px;color:var(--ink);max-height:88vh;box-shadow:0 20px 90px #14353030}dialog::backdrop{background:#102d37aa;backdrop-filter:blur(3px)}.dialog-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:23px}.dialog-heading button{background:#edf3ef;color:var(--navy);border-radius:50%;width:30px;height:30px}#dialog-content{font-size:12px;line-height:1.8;color:#627a71}#dialog-content h3{color:var(--ink);font-size:13px;margin:24px 0 8px}#dialog-content p{font-size:12px;line-height:1.8}#dialog-content li{margin-bottom:8px}#dialog-content pre{white-space:pre;overflow:auto;font:10px/1.5 ui-monospace,monospace;background:#f3f6f3;padding:15px;max-height:55vh}#dialog-content a{color:var(--green)}#dialog-content .button{color:white;margin:10px 8px 0 0}#dialog-content .field-grid{max-width:420px}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:calc(100vw - 30px);background:var(--navy);color:white;border-radius:6px;padding:12px 20px;font-size:12px;z-index:10000;box-shadow:0 6px 30px #133b412b}body.running #run-baseline,body.running #run-pond{opacity:.6}.map-panel,.results-panel,.parameters,.learning-panel{box-shadow:0 2px 5px #1d382803}button:hover:not(:disabled){filter:brightness(.96)}[hidden]{display:none!important}@media(min-width:1600px){.study-layout{grid-template-columns:315px minmax(0,1fr)}.map-wrap #map{height:390px}.chart-container{max-height:360px}.parameters{padding:25px}.field-note{font-size:10px}}@media(max-width:1100px){.study-layout{grid-template-columns:255px minmax(0,1fr);gap:15px}main{padding:25px 2.5% 0}.parameters{padding:18px 15px}.map-header{padding:17px}.map-drawbar{padding:8px 10px;gap:2px}.draw-button{font-size:8px;padding:6px}.results-panel{padding:18px 17px 0}.metrics>div{padding:0 8px}.metrics strong{font-size:21px}.learning-panel{padding:17px}.learning-panel details{min-width:130px}.chart-tabs button{padding:6px 8px}.results-heading h2{font-size:16px}.chart-legend{gap:10px;font-size:8px}.step{padding:15px}.map-tip span{font-size:8px}.map-wrap #map{height:320px}.map-coordinates{display:none}}@media(max-width:800px){.topbar{padding:0 20px;height:68px}.brand{font-size:18px}.engine-status{font-size:9px}.top-actions{gap:12px}.quiet{font-size:10px}.workspace-heading{align-items:flex-start}.workspace-heading p{max-width:350px;font-size:11px}.project-actions{flex-direction:column}.project-actions .button{font-size:9px;min-height:32px;padding:7px 10px}.workflow{margin-bottom:16px}.step{padding:12px;gap:8px}.step strong{font-size:10px}.step small{display:none}.step>span{width:25px;height:25px;font-size:8px}.step b{font-size:12px}.study-layout{grid-template-columns:230px minmax(0,1fr);gap:12px}.map-header h2{font-size:12px}.map-header{padding:15px 12px}.map-header .eyebrow{font-size:7px}.map-drawbar{flex-wrap:wrap;padding:7px 10px}.map-tools button{font-size:8px;padding:5px}.draw-button{font-size:8px}.map-wrap #map{height:330px}.map-tip{bottom:50px;left:10px;padding:8px 10px;right:10px}.map-tip b{font-size:8px}.map-legend{font-size:7px;gap:8px;left:10px;padding:6px}.map-footer{padding:8px 12px;font-size:7px}.results-heading{flex-direction:column;align-items:flex-start}.chart-tabs{margin-top:5px}.metrics{grid-template-columns:repeat(2,1fr);gap:15px 0}.metrics>div:nth-child(2){border:0}.metrics>div:nth-child(3){padding-left:0}.chart-container{min-height:205px}.chart-toolbar{flex-wrap:wrap;gap:10px;margin-top:14px}.chart-empty>span{font-size:9px}.chart-empty strong{font-size:11px}.results-bottom{flex-direction:column;align-items:flex-start;gap:8px}.water-balance{flex-wrap:wrap}.water-balance button{margin-left:0}.learning-panel{flex-wrap:wrap;gap:10px}.learning-panel>div:nth-child(2){flex:1}.learning-panel details{width:100%;flex-basis:100%;padding-left:37px}.page-footer{gap:10px;flex-wrap:wrap}.page-footer>span:last-child{text-align:left;max-width:none;width:100%}}@media(max-width:600px){main{padding:22px 15px 0}.topbar{padding:0 15px}.engine-status{max-width:95px;line-height:1.5}.quiet{display:none}.workspace-heading{gap:12px;margin-bottom:20px}h1{font-size:24px;max-width:300px}.eyebrow{font-size:8px;letter-spacing:1.4px}.workspace-heading p{font-size:10px}.project-actions .button{font-size:8px;white-space:nowrap;padding:7px 9px}.step{padding:11px 8px;gap:6px}.step strong{font-size:8px}.step b{display:none}.step>span{width:23px;height:23px;flex-shrink:0}.study-layout{display:flex;flex-direction:column;gap:15px}.parameters{width:100%;order:1;padding:20px}.main-panels{width:100%;order:0;gap:15px}.map-wrap #map{height:330px}.map-header h2{font-size:15px}.map-drawbar{flex-wrap:nowrap;padding:7px}.draw-button{font-size:8px;padding:6px}.map-tip{right:auto;max-width:calc(100% - 20px)}.map-footer{font-size:7px}.results-panel{padding:20px 15px 0}.results-heading{flex-direction:row;flex-wrap:wrap}.results-heading h2{font-size:18px}.results-heading p{font-size:9px}.chart-container{min-height:205px}.chart-empty strong{font-size:13px}.chart-empty>span{font-size:10px}.metrics>div{padding:0 16px}.metrics strong{font-size:25px}.metrics span{font-size:9px}.metrics>div>small{font-size:9px}.results-bottom{flex-direction:row;align-items:center}.learning-panel details{padding-left:38px}.panel-heading h2{font-size:19px}label{font-size:11px}.field-note{font-size:10px}.field-grid{gap:0 18px}input[type=number],select,input[type=text]{font-size:14px;min-height:40px}.input-section h3{font-size:14px}.button.baseline-run,.button.pond-run{font-size:13px;min-height:45px}.input-section{margin-top:20px;padding-top:20px}.area-readout>span{font-size:10px}.area-readout>strong{font-size:20px}.advanced label{font-size:10px}.advanced summary{font-size:12px}.reset-button{font-size:11px}.page-footer{padding:20px 0}.map-legend{font-size:8px}.engine-status{font-size:9px}.chart-tabs button{font-size:9px}.chart-legend{font-size:8px}.full-run-label{font-size:8px}.simulation-status{font-size:10px}dialog{padding:22px 20px}}
/* Keep teaching inputs and evidence legible on desktop displays. */
@media(min-width:801px){label{font-size:11px}input[type=number],input[type=text],select{font-size:13px;min-height:37px}.field-note{font-size:10px}.step strong{font-size:12px}.step small{font-size:10px}.draw-button{font-size:10px}.map-tools button{font-size:10px}.map-header h2{font-size:16px}.chart-tabs button{font-size:10px}.chart-legend{font-size:10px}.simulation-status{font-size:10px}.metrics span{font-size:10px}.metrics>div>small{font-size:9px}table{font-size:10px}th{font-size:9px}.water-balance,.water-balance button{font-size:9px}.export-actions button{font-size:10px}.results-bottom{font-size:9px}.learning-panel p{font-size:11px}.page-footer{font-size:9px}.page-footer button{font-size:9px}.page-footer>span:last-child{font-size:8px}.advanced label{font-size:10px}.advanced summary{font-size:11px}}

.capacity-banner{padding:12px 14px;margin:17px 0 0;border:1px solid #d3e3d7;background:#f0f6ef;border-radius:5px;color:#4d7756}.capacity-banner strong{font-size:12px;display:block}.capacity-banner span{font-size:10px;line-height:1.65;display:block;margin-top:5px}.capacity-banner.spillway{background:#fff9ec;border-color:#e9dab4;color:#93702f}.capacity-banner.exceeded{background:#fff1ee;border-color:#e8bdb4;color:#a24134}.metrics.has-exceedance #metric-peak{color:#ae4c3c;font-size:20px}.chart-legend{flex-wrap:wrap;row-gap:9px}.line-key.flood{border-color:#bc5244;border-top-style:dotted}.chart-toolbar{gap:12px}.full-run-label{white-space:nowrap}

.flood-map-notice{position:absolute;top:12px;right:12px;z-index:650;max-width:245px;background:#f1fafff7;border:1px solid #9bcde8;border-radius:6px;padding:11px 13px;box-shadow:0 2px 12px #1b669a1a;color:#236b98;pointer-events:none}.flood-map-notice strong{display:block;font-size:11px}.flood-map-notice span{display:block;font-size:9px;line-height:1.65;margin-top:5px}.pond-flood-alert{display:flex;align-items:center;justify-content:center;gap:5px;background:#eaf7ff;border:1px solid #74b8df;border-radius:15px;color:#126295;box-shadow:0 1px 7px #286b9c33;font-size:10px;font-weight:650;white-space:nowrap}.pond-flood-alert span{border:1px solid #398bc0;border-radius:50%;width:14px;height:14px;display:grid;place-items:center;font-size:10px}.swatch.flood{background:#319ddd}.map-legend{flex-wrap:wrap;row-gap:6px;max-width:calc(100% - 32px)}.flood-halo{animation:flood-alert-pulse 2.5s ease-in-out infinite}@keyframes flood-alert-pulse{0%,100%{stroke-opacity:.24}50%{stroke-opacity:.45}}@media(prefers-reduced-motion:reduce){.flood-halo{animation:none}}@media(max-width:800px){.flood-map-notice{max-width:195px;padding:8px 10px}.flood-map-notice strong{font-size:10px}.flood-map-notice span{font-size:8px}}

.surface-panel{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px 23px;box-shadow:0 2px 5px #1d382803}.surface-heading{display:flex;justify-content:space-between;gap:12px}.surface-heading h2{font-size:18px}.surface-heading p{font-size:11px;color:#7c8f89;line-height:1.6;margin:7px 0 15px;max-width:590px}.surface-actions{display:flex;flex-wrap:wrap;gap:7px}.surface-actions .button{font-size:10px}.surface-domain{font-size:9px;color:#7d8e83;margin:13px 0}.surface-controls{display:grid;grid-template-columns:1fr 1fr 1.4fr 1.7fr;gap:12px;align-items:end}.surface-controls label{font-size:9px;margin:0}.surface-controls .pond-run{margin:0;min-height:37px;font-size:10px;flex-direction:row;gap:6px}.surface-controls #surface-cancel{grid-column:4}.surface-display-options{display:flex;gap:17px;flex-wrap:wrap;margin:17px 0 8px}.surface-display-options label{display:flex;align-items:center;gap:5px;font-weight:400;font-size:9px;color:#74877d;margin:0}.surface-release-position{font-size:9px;color:#87958a;margin:10px 0}.surface-playback{border:1px solid #e0e9e2;background:#f6f9f5;border-radius:5px;padding:14px 15px;margin:17px 0}.surface-playback-heading{display:flex;align-items:center;gap:12px}.surface-playback-heading strong{font-size:10px;color:#54765e;flex:1}.surface-playback-heading select{max-width:150px;font-size:10px;margin:0;min-height:32px}.surface-playback-heading .button{font-size:10px;min-height:32px;padding:7px 9px}.surface-playback input[type=range]{width:100%;accent-color:var(--green);margin-top:13px}.surface-playback p{font-size:9px;margin:8px 0 0;color:#7a907f}.surface-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:14px 0}.surface-metrics>div{border-right:1px solid var(--line)}.surface-metrics>div:last-child{border:0}.surface-metrics span{font-size:9px;color:#82968a;display:block;line-height:1.5}.surface-metrics strong{font-size:19px;font-weight:550;color:#277b87;display:block;margin-top:6px}.surface-balance{font-size:9px;color:#6c8c73;margin:6px 0}.surface-boundary-note{font-size:10px;color:#927641;background:#fff9ec;border-left:2px solid #ceb57e;padding:9px 11px;line-height:1.7}.surface-bottom{margin-top:15px;display:flex;gap:20px;align-items:flex-start;justify-content:space-between;border-top:1px solid var(--line);padding-top:13px}.surface-bottom button{background:none;color:#6f8a79;font-size:9px;padding:0;white-space:nowrap}.surface-bottom span{font-size:8px;color:#95a298;line-height:1.7;max-width:480px}.surface-canvas{position:absolute;pointer-events:none;z-index:450}.surface-release-marker{background:#fff7df;border:2px solid #b29b5b;color:#8f742c;border-radius:50%;font-size:19px;display:grid;place-items:center;box-shadow:0 1px 6px #4443}.surface-map-legend{position:absolute;top:12px;right:12px;z-index:550;background:#fffffff5;border:1px solid #d5e1df;border-radius:5px;padding:10px 12px;pointer-events:none;box-shadow:0 2px 10px #2333;color:#5c7a82}.surface-map-legend strong{font-size:9px;display:block;margin-bottom:7px}.surface-map-legend>div{font-size:8px;display:flex;gap:7px;align-items:center;line-height:1.7}.surface-map-legend i{display:inline-block;width:16px;height:9px}.surface-map-legend small{font-size:7px;display:block;border-top:1px solid #e5ece9;padding-top:5px;margin-top:6px}@media(max-width:1100px){.surface-controls{grid-template-columns:1fr 1fr}.surface-controls #surface-cancel{grid-column:auto}.surface-metrics{grid-template-columns:1fr 1fr;row-gap:17px}.surface-metrics>div:nth-child(2){border:0}.surface-bottom{flex-direction:column;gap:9px}}@media(max-width:600px){.surface-panel{padding:20px 15px}.surface-heading p{font-size:10px}.surface-actions .button{font-size:9px;min-height:35px}.surface-controls label{font-size:10px}.surface-playback-heading{flex-wrap:wrap;gap:8px}.surface-playback-heading strong{font-size:9px}.surface-playback-heading select{max-width:140px}.surface-map-legend{padding:8px;max-width:130px}.surface-map-legend strong{font-size:8px}.surface-metrics strong{font-size:21px}.surface-display-options label{font-size:9px}}

body.surface-active .map-wrap #map{height:520px}@media(max-width:600px){body.surface-active .map-wrap #map{height:440px}}

#map.surface-flood-focus{background:#e4e9e7}
.leaflet-map-pane canvas.surface-canvas{z-index:450}
#map.surface-flood-focus .leaflet-tile-pane{filter:grayscale(1) contrast(.85);opacity:.55}
#map.satellite-view.surface-flood-focus .leaflet-tile-pane{filter:saturate(.65) brightness(.9);opacity:.8}
.surface-map-tools{position:absolute;top:12px;left:54px;z-index:650;display:flex;gap:5px;flex-wrap:wrap;max-width:calc(100% - 205px)}
.surface-map-tools button{background:#fffffff5;color:#124f75;border:1px solid #b8cfda;border-radius:5px;padding:8px 10px;font-size:10px;font-weight:650;min-height:34px;box-shadow:0 2px 8px #15334b15}
body.surface-active .map-tip{max-width:310px;border-left:3px solid #138bd5;padding:10px 12px;pointer-events:none}
body.surface-active .map-tip b{font-size:10px;color:#124f75}
body.surface-active .map-tip span{font-size:9px;line-height:1.6}
.surface-map-legend strong{font-size:10px;color:#234f68}
.surface-map-legend>div{font-size:9px}
.surface-map-legend i{width:19px;height:10px;border:1px solid #07528d44}
.surface-map-legend small{max-width:135px;line-height:1.5}
@media(max-width:600px){.surface-map-tools{max-width:calc(100% - 195px);left:50px;gap:4px}.surface-map-tools button{padding:6px 8px;font-size:9px;min-height:32px}.surface-map-legend{max-width:126px;right:10px}.surface-map-legend strong{font-size:9px}.surface-map-legend>div{font-size:8px}body.surface-active .map-tip{max-width:calc(100% - 20px);padding:8px 10px}body.surface-active .map-tip span{font-size:8px}}

.map-header{gap:12px;flex-wrap:wrap}
.map-header>div:first-child{flex:1;min-width:185px}
.map-basemaps{display:flex;padding:3px;background:#edf2f0;border:1px solid #dce5e1;border-radius:6px;gap:2px}
.map-basemaps button{font-size:10px;color:#607b7d;background:transparent;padding:7px 10px;border-radius:4px;white-space:nowrap;min-height:32px}
.map-basemaps button[aria-pressed=true]{background:#fff;color:#163f51;font-weight:650;box-shadow:0 1px 4px #12364318}
.surface-example-note{font-size:10px;color:#657e78;line-height:1.65;margin:12px 0 0}
.surface-example-note strong{font-weight:600}
@media(max-width:800px){.map-header{gap:8px}.map-header>div:first-child{min-width:150px}.map-basemaps{order:3;width:100%}.map-basemaps button{flex:1;font-size:10px}}