:root{--bg: #f3f5f6;--panel: #ffffff;--ink: #1d2328;--ink-2: #56606a;--ink-3: #8a949c;--line: #e2e6e9;--accent: #f2b705;--accent-ink: #3b2c00;--brand: #0f4c5c;--warn: #c62828;--lost: #8e44c9;--mono: ui-monospace, "SF Mono", "Cascadia Mono", "Roboto Mono", Menlo, Consolas, monospace;--sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;color-scheme:light}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--sans);font-size:13px;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit;color:inherit}code{font-family:var(--mono);font-size:.95em}.app{display:flex;flex-direction:column;height:100%}.topbar{display:flex;align-items:center;gap:24px;padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--line);min-height:60px}.brand 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i{display:block;height:100%;background:var(--accent)}.tour-controls{position:absolute;right:16px;bottom:16px;display:flex;gap:6px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#141c226b;display:flex;align-items:center;justify-content:center;z-index:20;padding:16px}.modal{background:var(--panel);border-radius:12px;width:min(560px,100%);max-height:calc(100vh - 32px);display:flex;flex-direction:column;padding:18px 20px;box-shadow:0 20px 60px #00000040}.modal.wide{width:min(980px,100%)}.modal>header{display:flex;align-items:center;justify-content:space-between}.modal h2{margin:0;font-size:17px}.modal .lead{color:var(--ink-2);line-height:1.5;margin:8px 0 14px}.modal footer{display:flex;align-items:center;gap:8px;margin-top:16px;flex-wrap:wrap}.spacer{flex:1}.files{display:grid;gap:10px}.file{display:flex;flex-direction:column;gap:6px;border:1px dashed #c8cfd4;border-radius:8px;padding:12px}.file span{font-weight:600}.file small{color:var(--ink-3)}.mapping-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;overflow-y:auto}.mapping h3{font-size:13px;margin:0 0 6px}.mapping h3 small{font-weight:400;color:var(--ink-3)}.mapping table{width:100%;border-collapse:collapse}.mapping th{text-align:left;font-weight:500;padding:4px 6px 4px 0;white-space:nowrap}.mapping td{padding:3px 0}.mapping select{width:100%;border:1px solid var(--line);border-radius:5px;padding:4px 6px}.mapping .sample{font-family:var(--mono);font-size:11px;color:var(--ink-3);padding-left:8px;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mapping tr.missing th,.req{color:var(--warn)}.issue-summary{display:flex;flex-wrap:wrap;gap:6px 16px;list-style:none;padding:0;margin:0 0 10px}.issue-table{overflow:auto;border:1px solid var(--line);border-radius:8px;max-height:46vh}.issue-table table{width:100%;border-collapse:collapse;font-size:12px}.issue-table th,.issue-table td{text-align:left;padding:5px 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