:root{--ink:#263c40;--muted:#697777;--paper:#f5f6f2;--line:#dce1dc;--accent:#466e6a;--warm:#9d5b3d;font-family:Arial,Helvetica,sans-serif;color:var(--ink);font-synthesis:none}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden}body{background:#cbd5d3}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,input:focus-visible,summary:focus-visible,a:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}#stage{position:absolute;inset:0 290px 0 0;overflow:hidden}#viewport{position:absolute;inset:0}canvas{display:block;width:100%;height:100%;touch-action:none}.labels{position:absolute;inset:0;pointer-events:none}.identity{position:absolute;top:27px;left:27px;display:flex;gap:12px;pointer-events:none}.identity svg{width:37px;height:36px;fill:none;stroke:var(--warm);stroke-width:1.8}.identity h1{font-family:Georgia,serif;font-weight:400;font-size:30px;letter-spacing:6px;margin:0;line-height:1.05}.identity p{font-size:10px;letter-spacing:.5px;margin:8px 0 0}.identity p span{display:block;margin-top:4px;color:var(--muted)}.view-badge{position:absolute;top:115px;left:28px;display:flex;gap:9px;align-items:center;font-size:11px}.view-badge span:first-child{font-weight:600}.view-badge span+span{border-left:1px solid #99aaa8;padding-left:9px;color:#526767}.north{position:absolute;right:20px;top:22px;display:flex;flex-direction:column;align-items:center}.north svg{width:54px;height:54px;fill:#476866;transform-origin:center}.north text{font:9px Arial;text-anchor:middle}.north .south{fill:#c5ceca}.north 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i{display:block;flex:none;width:29px;height:17px;border-radius:12px;background:#d8dfd8;position:relative;pointer-events:none;transition:background .2s}.toggle i:after{content:'';position:absolute;top:3px;left:3px;width:11px;height:11px;border-radius:50%;background:#fff;box-shadow:0 1px 2px #2343;transition:transform .2s}.toggle input:checked+i{background:var(--accent)}.toggle input:checked+i:after{transform:translateX(12px)}.toggle input:focus-visible+i{outline:2px solid var(--accent);outline-offset:3px}.layer-note{font-size:10px;line-height:1.55;color:var(--muted);margin:10px 0 0}.sun-label{display:flex;justify-content:space-between;font-size:10px;margin-bottom:10px}.sun-label output{font:11px monospace;color:var(--accent)}input[type=range]{width:100%;margin:2px 0;accent-color:var(--accent);height:24px}.sun-endpoints{display:flex;justify-content:space-between;font:8px monospace;color:#87928c;margin-bottom:13px}.select-label{font-size:10px;color:var(--muted);display:block;margin-bottom:6px}select{width:100%;border:1px solid #d4ddd6;background:transparent;border-radius:4px;padding:8px;color:var(--ink);font-size:11px}details{font-size:11px}summary{cursor:pointer;padding:4px 0 12px;font-weight:600;list-style-position:outside;margin-left:12px}#legend{display:grid;grid-template-columns:1fr 1fr;gap:11px 7px;margin:8px 0 16px}.swatch{display:flex;align-items:center;gap:7px;font-size:9px;color:#5b6a65}.swatch i{display:block;width:17px;height:17px;border-radius:3px;box-shadow:inset 0 0 0 1px #0001}.source-copy,#assumptions{font-size:10px;line-height:1.6;color:var(--muted)}#assumptions{padding-left:14px}#assumptions li{margin-bottom:10px}a{color:var(--accent)}.panel-foot{margin-top:20px;border-top:1px solid var(--line);padding-top:14px;display:flex;justify-content:space-between;font:9px monospace;color:#7b8983}.panel-foot span{font:8px 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