:root{--bg: #0f1319;--panel: #171c25;--panel-2: #1e2430;--line: #2a3240;--text: #dfe4ec;--dim: #8b95a5;--accent: #5aa9e6;--ok: #4ec38a;--bad: #e0705f;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font:13px/1.5 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}.root{height:100%}.root.over{outline:2px dashed var(--accent);outline-offset:-8px}.intro{height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:14px;text-align:center;padding:24px}.intro h1{font-size:22px;font-weight:600;margin:0;letter-spacing:-.01em}.intro .sub{max-width:46ch;color:var(--dim);margin:0}.intro .row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:6px}.busy{color:var(--accent)}.error{color:var(--bad)}.app{height:100%;display:grid;grid-template-columns:292px 1fr 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10px;background:var(--panel-2);border:1px solid var(--line);border-radius:6px}.legend{margin-top:10px;display:flex;flex-direction:column;gap:1px}.legend label{display:grid;grid-template-columns:auto 12px 1fr auto;align-items:center;gap:7px;padding:2px 0;cursor:pointer}.legend label.off{opacity:.4}.legend i{width:12px;height:12px;border-radius:3px;display:block}.legend em{font-style:normal;color:var(--dim);font-variant-numeric:tabular-nums;font-size:12px}.storeys{display:flex;flex-wrap:wrap;gap:5px}.storeys button{min-width:38px;font-variant-numeric:tabular-nums}.notes{margin:0;padding-left:16px;color:var(--dim);font-size:12px}.verdict{border-radius:6px;padding:7px 10px;font-weight:600;border:1px solid var(--line);background:var(--panel-2)}.verdict.ok{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 40%,var(--line))}.verdict.warn{color:#e0b45f;border-color:color-mix(in srgb,#e0b45f 40%,var(--line))}.verdict.bad{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 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