*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f8fafc;--bg-card:#fff;--text:#0f172a;--text-muted:#64748b;--border:#e2e8f0;--primary:#2563eb;--primary-hover:#1d4ed8;--danger:#dc2626;--success:#16a34a;--warning:#ca8a04;--radius:8px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary);text-decoration:none}.container{max-width:1200px;margin:0 auto;padding:24px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px}.grid{display:grid;grid-gap:16px;gap:16px}.grid-2{grid-template-columns:repeat(auto-fill,minmax(340px,1fr))}.grid-3{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius);border:none;cursor:pointer;font-size:14px;font-weight:500;transition:all .15s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-sm{padding:4px 10px;font-size:12px}.btn:disabled{opacity:.5;cursor:not-allowed}.input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none}.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}.label{display:block;font-size:13px;font-weight:500;margin-bottom:4px;color:var(--text-muted)}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:600;text-transform:uppercase}.badge-green{background:#dcfce7;color:#166534}.badge-red{background:#fef2f2;color:#991b1b}.badge-yellow{background:#fef9c3;color:#854d0e}.badge-blue{background:#dbeafe;color:#1e40af}.badge-gray{background:#f1f5f9;color:#475569}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px}td,th{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border)}th{font-weight:600;color:var(--text-muted);font-size:11px;text-transform:uppercase;letter-spacing:.05em}tr:hover td{background:#f8fafc}.sidebar{position:fixed;top:0;left:0;width:220px;height:100vh;background:#1e293b;color:#fff;padding:20px 0}.sidebar h2{padding:0 20px;font-size:16px;margin-bottom:24px}.sidebar nav a{display:flex;align-items:center;gap:10px;padding:10px 20px;color:#94a3b8;font-size:14px;transition:all .15s}.sidebar nav a.active,.sidebar nav a:hover{background:rgba(255,255,255,.08);color:#fff}.main{margin-left:220px;min-height:100vh}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.page-header h1{font-size:22px;font-weight:600}.stat{text-align:center}.stat-value{font-size:28px;font-weight:700}.stat-label{font-size:12px;color:var(--text-muted);margin-top:4px}.qr-container{display:flex;justify-content:center;padding:20px}.qr-container img{max-width:280px;border-radius:var(--radius)}.empty{text-align:center;padding:40px;color:var(--text-muted)}.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}.filters input,.filters select{padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius);font-size:13px}