:root{--bg:#f6f7f9;--surface:#fff;--surface-2:#f1f3f6;--border:#e3e6eb;--border-2:#d3d8e0;--text:#1a1d24;--muted:#6b7280;--accent:#4f46e5;--accent-d:#4338ca;--danger:#dc2626;--ok:#16a34a}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}.topbar{height:56px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 20px}.topbar .brand{font-weight:800;font-size:16px;letter-spacing:-.3px}.topbar .brand span{color:var(--accent)}.topbar .brand small{color:var(--muted);font-weight:600;margin-left:6px;letter-spacing:0}.wrap{max-width:940px;margin:0 auto;padding:24px 20px 60px}.h1{font-size:20px;font-weight:700;margin-bottom:4px}.sub{font-size:13.5px;color:var(--muted);margin-bottom:20px}.card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px;margin-bottom:18px}.card h2{font-size:15px;font-weight:700;margin-bottom:14px}.row{gap:12px;flex-wrap:wrap;align-items:flex-end}.field,.row{display:flex}.field{flex-direction:column;gap:6px}.field label{font-size:12px;font-weight:600;color:var(--muted)}.input{height:40px;border:1px solid var(--border-2);border-radius:9px;padding:0 12px;font-size:14px;background:#fff;color:var(--text);outline:none}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,70,229,.12)}.btn{height:40px;padding:0 16px;border-radius:9px;font-size:14px;font-weight:600;border:1px solid var(--border-2);background:#fff;color:var(--text);cursor:pointer;display:inline-flex;align-items:center;gap:7px;transition:background .12s ease,border-color .12s ease}.btn:hover{background:var(--surface-2)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent-d)}.btn:disabled{opacity:.55;cursor:default}.table{width:100%;border-collapse:collapse;font-size:13.5px}.table th{text-align:left;font-weight:600;color:var(--muted);font-size:12px;padding:8px 10px}.table td,.table th{border-bottom:1px solid var(--border)}.table td{padding:10px}.table tr:last-child td{border-bottom:none}.mono{font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:12.5px}.badge{display:inline-block;font-size:11px;font-weight:600;padding:3px 8px;border-radius:999px;background:var(--surface-2);color:var(--muted)}.badge.active{background:#dcfce7;color:#15803d}.badge.manufactured{background:#fef3c7;color:#92400e}.banner{border-radius:10px;padding:12px 14px;font-size:13.5px;margin-bottom:14px}.banner.warn{background:#fef3c7;border:1px solid #fde68a;color:#92400e}.banner.err{background:#fee2e2;border:1px solid #fecaca;color:#991b1b}.login{max-width:380px;margin:80px auto}.qrsheet{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));grid-gap:14px;gap:14px}.qrcard{border:1px solid var(--border);border-radius:12px;padding:14px;text-align:center;background:#fff}.qrcard img{width:140px;height:140px}.qrcard .pid{font-family:ui-monospace,Consolas,monospace;font-size:12px;margin-top:8px;color:var(--text)}.qrcard .secret{margin-top:8px;border-top:1px dashed var(--border-2);padding-top:8px}.qrcard .secret .lbl{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.qrcard .secret .code{font-family:ui-monospace,Consolas,monospace;font-size:15px;font-weight:700;letter-spacing:1px}@media print{.no-print{display:none!important}body{background:#fff}.wrap{max-width:none;padding:0}.qrsheet{grid-template-columns:repeat(3,1fr)}.qrcard{page-break-inside:avoid;break-inside:avoid}}