:root{--bg: #f4f6f8;--card: #ffffff;--border: #e0e4e8;--text: #1f2937;--muted: #6b7280;--primary: #2563eb;--primary-dark: #1d4ed8;--danger: #dc2626;--success: #16a34a;--warning: #d97706;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;background:#111827;color:#e5e7eb;padding:16px 0;flex-shrink:0}.sidebar .brand{padding:0 16px 16px;font-weight:700;font-size:15px;border-bottom:1px solid #1f2937;margin-bottom:8px}.sidebar a{display:block;padding:10px 16px;color:#cbd5e1;text-decoration:none;font-size:14px}.sidebar a.active,.sidebar a:hover{background:#1f2937;color:#fff}.main{flex:1;padding:24px;max-width:1100px}.card{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:16px}h1{font-size:20px;margin:0 0 16px}h2{font-size:16px;margin:0 0 12px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.stat-box{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:16px}.stat-box .num{font-size:26px;font-weight:700}.stat-box .label{font-size:12px;color:var(--muted);margin-top:4px}input,select,button{font-size:14px;padding:8px 10px;border-radius:6px;border:1px solid var(--border)}button{background:var(--primary);color:#fff;border:none;cursor:pointer;font-weight:600}button:hover{background:var(--primary-dark)}button.secondary{background:#e5e7eb;color:var(--text)}button.secondary:hover{background:#d1d5db}button.danger{background:var(--danger)}button:disabled{opacity:.5;cursor:not-allowed}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600}.badge.ok{background:#dcfce7;color:#166534}.badge.warn{background:#fef3c7;color:#92400e}.badge.err{background:#fee2e2;color:#991b1b}.badge.neutral{background:#e5e7eb;color:#374151}.form-row{margin-bottom:12px;display:flex;flex-direction:column;gap:4px}.form-row label{font-size:12px;color:var(--muted);font-weight:600}.error-box{background:#fee2e2;color:#991b1b;padding:10px 14px;border-radius:6px;margin-bottom:12px;font-size:13px}.success-box{background:#dcfce7;color:#166534;padding:10px 14px;border-radius:6px;margin-bottom:12px;font-size:13px}.dealer-portal{max-width:480px;margin:60px auto}.login-shell{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-card{width:340px}.scanner-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;z-index:1000;display:flex;align-items:flex-start;justify-content:center;padding:16px;overflow:auto}.scanner-box{background:var(--card);border-radius:10px;padding:16px;width:100%;max-width:520px}.scanner-actions{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.scanner-video{width:100%;max-height:60vh;border-radius:8px;background:#000;object-fit:cover}.scanner-hint{font-size:13px;color:var(--muted);margin:8px 0}.scanner-code{display:block;width:100%;text-align:left;margin-top:6px;background:#f3f4f6;color:var(--text);font-family:monospace;font-size:15px}.scanner-code .badge{font-family:sans-serif;margin-right:6px}