@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--primary:#1565c0;--primary-light:#1976d2;--primary-dark:#0d47a1;--secondary:#00897b;--bg:#f5f7fa;--bg-paper:#fff;--text-primary:#1a1a2e;--text-secondary:#6b7280;--border:#e5e7eb;--success:#2e7d32;--warning:#e65100;--error:#c62828;--sidebar-w:240px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg);color:var(--text-primary);font-family:Inter,sans-serif;font-size:14px;line-height:1.6}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#a8a8a8}.tbl{border-collapse:collapse;width:100%;font-size:13px}.tbl th{text-align:left;color:var(--text-secondary);border-bottom:2px solid var(--border);white-space:nowrap;background:#eef2f7;padding:10px 12px;font-weight:600}.tbl td{border-bottom:1px solid var(--border);vertical-align:middle;padding:9px 12px}.tbl tr:hover td{background:#f9fafb}.tbl .highlight td{background:#e8f5e9;font-weight:600}.tbl .number{text-align:right;font-variant-numeric:tabular-nums}.tbl .center{text-align:center}.step-label{color:var(--primary);text-transform:uppercase;letter-spacing:.5px;border-left:3px solid var(--primary);background:#e3f2fd;border-radius:0 4px 4px 0;margin-bottom:8px;padding:4px 10px;font-size:13px;font-weight:600;display:inline-block}.card{background:var(--bg-paper);border:1px solid var(--border);border-radius:8px;margin-bottom:24px;padding:20px;box-shadow:0 1px 3px #0000000f}.badge{border-radius:12px;padding:2px 8px;font-size:12px;font-weight:600;display:inline-block}.badge-cost{color:#c62828;background:#fee2e2}.badge-benefit,.badge-optimal{color:#065f46;background:#d1fae5}.badge-infeasible{color:#c62828;background:#fee2e2}