:root{--primary:#2563eb;--primary-dark:#1d4ed8;--primary-light:#dbeafe;--primary-50:#eff6ff;--danger:#dc2626;--danger-light:#fee2e2;--success:#16a34a;--success-light:#dcfce7;--warning:#f59e0b;--warning-light:#fef3c7;--purple:#7c3aed;--purple-light:#f3e8ff;--teal:#0d9488;--teal-light:#ccfbf1;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--gray-900:#111827;--sidebar-w:220px;--radius:8px;--radius-lg:12px;--shadow-sm:0 1px 2px #0000000d;--shadow:0 1px 3px #0000001a, 0 1px 2px #0000000f;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--gray-800);-webkit-font-smoothing:antialiased;background:#f0f2f5;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe 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tr{transition:background .15s}table tbody tr:hover{background:var(--primary-50)}table tbody tr:last-child td{border-bottom:none}.form-group{margin-bottom:16px}.form-group label{color:var(--gray-700);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.form-group input,.form-group select,.form-group textarea{border:1px solid var(--gray-300);border-radius:var(--radius);background:#fff;outline:none;width:100%;padding:9px 12px;transition:all .2s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f}.filter-bar{border-radius:var(--radius-lg);box-shadow:var(--shadow);background:#fff;border:1px solid #0000000a;flex-wrap:wrap;align-items:flex-end;gap:10px;margin-bottom:16px;padding:16px 20px;display:flex}.filter-group{flex-direction:column;gap:4px;display:flex}.filter-group label{color:var(--gray-500);text-transform:uppercase;letter-spacing:.05em;font-size:11px;font-weight:600}.filter-group 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solid var(--gray-200);gap:0;margin-bottom:20px;display:flex}.tab-item{color:var(--gray-500);cursor:pointer;border-bottom:2px solid #0000;margin-bottom:-2px;padding:10px 18px;font-size:13px;font-weight:500;transition:all .2s}.tab-item:hover{color:var(--gray-700)}.tab-item.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}.toggle-group{border-radius:var(--radius);border:1px solid var(--gray-300);display:flex;overflow:hidden}.toggle-btn{color:var(--gray-600);cursor:pointer;border:none;border-right:1px solid var(--gray-300);background:#fff;padding:7px 14px;font-size:13px;font-weight:500;transition:all .2s}.toggle-btn:last-child{border-right:none}.toggle-btn.active{background:var(--primary);color:#fff}.toggle-btn:hover:not(.active){background:var(--gray-50)}@media (width<=1024px){.filter-bar{flex-direction:column;align-items:stretch}.filter-group,.filter-group input,.filter-group select{width:100%}.stat-row{grid-template-columns:repeat(2,1fr)}}@media (width<=768px){.stat-row{grid-template-columns:1fr}.page-header{flex-direction:column;align-items:flex-start}}.layout{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-w);border-right:1px solid var(--gray-200);z-index:100;background:#fff;flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0;box-shadow:2px 0 8px #0000000a}.sidebar-header{border-bottom:1px solid var(--gray-100);padding:20px 16px 16px}.logo{color:var(--primary);letter-spacing:-.02em;font-size:20px;font-weight:800}.role-badge{color:#fff;background:var(--primary);border-radius:9999px;margin-top:6px;padding:2px 10px;font-size:11px;font-weight:500;display:inline-block}.sidebar-nav{flex:1;padding:8px;overflow-y:auto}.nav-item{color:var(--gray-600);border-radius:8px;align-items:center;gap:10px;margin-bottom:2px;padding:9px 12px;font-size:13px;font-weight:500;text-decoration:none;transition:all .15s;display:flex}.nav-item:hover{background:var(--gray-100);color:var(--gray-800);text-decoration:none}.nav-item.active{background:var(--primary-light);color:var(--primary);font-weight:600;box-shadow:inset 0 0 0 1px #2563eb26}.nav-icon{text-align:center;flex-shrink:0;width:22px;font-size:16px}.sidebar-footer{border-top:1px solid var(--gray-100);background:var(--gray-50);padding:12px 16px}.admin-info{margin-bottom:8px}.admin-info strong{color:var(--gray-800);font-size:13px;display:block}.admin-info small{color:var(--gray-500);font-size:11px}.main-content{margin-left:var(--sidebar-w);background:#f0f2f5;flex:1;min-height:100vh;padding:24px 28px}@media (width<=768px){.sidebar{width:56px}.sidebar .nav-item span:last-child,.sidebar-header .role-badge,.admin-info{display:none}.sidebar .logo{font-size:14px}.main-content{margin-left:56px;padding:16px}}