:root{--primary: #6366f1;--primary-hover: #4f46e5;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-500: #6b7280;--gray-700: #374151;--gray-900: #111827;--radius: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--gray-900);background:var(--gray-50);line-height:1.6}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:all .15s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-success{background:var(--success);color:#fff}.btn-danger{background:var(--danger);color:#fff}.btn-warning{background:var(--warning);color:#fff}.btn-outline{background:#fff;border:1px solid var(--gray-300);color:var(--gray-700)}.btn-outline:hover{background:var(--gray-50)}.btn-sm{padding:4px 10px;font-size:12px}.card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius);padding:20px}.form-group{margin-bottom:16px}.form-group label{display:block;font-weight:500;margin-bottom:4px;font-size:14px}.form-group input,.form-group textarea,.form-group select{width:100%;padding:8px 12px;border:1px solid var(--gray-300);border-radius:var(--radius);font-size:14px}.badge{display:inline-block;padding:2px 8px;border-radius:9999px;font-size:11px;font-weight:600}.badge-success{background:#d1fae5;color:#065f46}.badge-warning{background:#fef3c7;color:#92400e}.badge-danger{background:#fee2e2;color:#991b1b}.badge-info{background:#dbeafe;color:#1e40af}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.flex{display:flex}.flex-between{display:flex;justify-content:space-between;align-items:center}.gap-2{gap:8px}.gap-4{gap:16px}.text-sm{font-size:14px}.text-xs{font-size:12px}.text-muted{color:var(--gray-500)}.text-center{text-align:center}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}