:root{--admin-primary:#2c3e50;--admin-accent:#3498db;--admin-bg:#f5f7fa;--admin-card:#fff;--admin-border:#e1e5eb;--admin-text:#333;--admin-muted:#7f8c8d}*{box-sizing:border-box}body{margin:0}.admin-shell{display:flex;min-height:100vh;background:var(--admin-bg);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:var(--admin-text)}.admin-sidebar{width:260px;background:var(--admin-primary);color:#ecf0f1;padding:20px 0;flex-shrink:0;position:-webkit-sticky;position:sticky;top:0;height:100vh;overflow-y:auto}.admin-sidebar-header{padding:0 20px 20px;border-bottom:1px solid #3c546c;margin-bottom:20px}.admin-sidebar-header h1{font-size:1.4rem;margin:0}.admin-nav{display:flex;flex-direction:column}.admin-nav-link{color:#ecf0f1;text-decoration:none;display:flex;align-items:center;gap:10px;padding:11px 20px;font-size:.9rem;border-left:3px solid transparent;transition:background .2s,border-color .2s}.admin-nav-link:hover{background:#34495e}.admin-nav-link.active{background:#34495e;border-left-color:#3498db}.admin-main{flex:1 1;min-width:0;display:flex;flex-direction:column}.admin-topbar{background:#fff;border-bottom:1px solid var(--admin-border);padding:14px 24px;display:flex;justify-content:space-between;align-items:center;position:-webkit-sticky;position:sticky;top:0;z-index:10}.admin-topbar h2{margin:0;font-size:1.2rem;color:var(--admin-primary)}.admin-logout-btn{background:#e74c3c;color:#fff;border:none;border-radius:6px;padding:8px 14px;cursor:pointer;font-size:.85rem;display:flex;align-items:center;gap:6px}.admin-content{padding:24px}.admin-standalone{min-height:100vh;background:var(--admin-bg);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:var(--admin-text)}.admin-standalone-header{background:#fff;border-bottom:1px solid var(--admin-border);padding:14px 24px;display:flex;align-items:center;gap:16px;position:-webkit-sticky;position:sticky;top:0;z-index:10}.admin-standalone-header h1{margin:0;font-size:1.2rem;color:var(--admin-primary);flex:1 1}.admin-standalone-back{display:flex;align-items:center;gap:8px;color:var(--admin-primary);text-decoration:none;font-size:.9rem;font-weight:500;flex-shrink:0}.admin-standalone-back:hover{color:var(--admin-accent)}.admin-standalone-content{padding:24px}.admin-dashboard-header{background:#fff;border-bottom:1px solid var(--admin-border);padding:20px 24px;display:flex;justify-content:space-between;align-items:center}.admin-dashboard-header h1{margin:0;font-size:1.6rem;color:var(--admin-primary)}.admin-dashboard-content{padding:24px}.admin-nav-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));grid-gap:16px;gap:16px}.admin-nav-card{background:var(--admin-card);border:1px solid var(--admin-border);border-radius:8px;padding:18px;text-decoration:none;color:var(--admin-text);display:flex;align-items:center;gap:14px;transition:transform .2s ease,box-shadow .2s ease}.admin-nav-card:hover{transform:translateY(-3px);box-shadow:0 5px 15px rgba(0,0,0,.1)}.admin-nav-card-icon{width:40px;height:40px;border-radius:8px;background:#ebf5ff;color:var(--admin-accent);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1.1rem}.admin-nav-card-title{font-weight:600;font-size:.95rem}.admin-page-title{margin:0 0 4px;font-size:1.5rem;color:var(--admin-primary)}.admin-page-subtitle{margin:0 0 20px;color:var(--admin-muted);font-size:.9rem}.admin-card{background:var(--admin-card);border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,.05);padding:20px;margin-bottom:20px}.admin-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));grid-gap:16px;gap:16px;margin-bottom:20px}.admin-stat-card{background:#fff;border-radius:8px;padding:18px;box-shadow:0 2px 8px rgba(0,0,0,.05);border:1px solid var(--admin-border)}.admin-stat-card .label{color:var(--admin-muted);font-size:.85rem}.admin-stat-card .value{font-size:1.8rem;font-weight:700;margin-top:4px}.admin-table{width:100%;border-collapse:collapse;background:#fff;border-radius:8px;overflow:hidden}.admin-table td,.admin-table th{padding:10px 14px;text-align:left;border-bottom:1px solid var(--admin-border);font-size:.9rem}.admin-table th{background:#f8f9fa;color:#475569;font-weight:600}.admin-table tr:hover td{background:#f9f9f9}.admin-form-group{margin-bottom:16px}.admin-form-group label{display:block;margin-bottom:6px;font-weight:600;font-size:.85rem;color:#475569}.admin-input{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:6px;font-size:.95rem;font-family:inherit}.admin-input:focus{outline:none;border-color:var(--admin-accent);box-shadow:0 0 0 2px rgba(52,152,219,.2)}.admin-btn{padding:10px 16px;border:none;border-radius:6px;cursor:pointer;font-size:.9rem;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:opacity .2s,transform .1s}.admin-btn:hover{opacity:.9}.admin-btn.primary{background:#3498db;color:#fff}.admin-btn.success{background:#28a745;color:#fff}.admin-btn.danger{background:#dc3545;color:#fff}.admin-btn.warning{background:#f39c12;color:#fff}.admin-btn.secondary{background:#6c757d;color:#fff}.admin-btn.small{padding:6px 10px;font-size:.8rem}.admin-alert{padding:12px 14px;border-radius:6px;margin-bottom:16px;font-size:.9rem}.admin-alert.success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.admin-alert.error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.admin-alert.info{background:#d1ecf1;color:#0c5460;border:1px solid #bee5eb}.admin-badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:.75rem;font-weight:600;text-transform:uppercase}.admin-badge.green{background:#d4edda;color:#155724}.admin-badge.red{background:#f8d7da;color:#721c24}.admin-badge.yellow{background:#fff3cd;color:#856404}.admin-badge.gray{background:#e2e3e5;color:#383d41}.admin-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;color:var(--admin-muted)}.admin-spinner{width:40px;height:40px;border:4px solid rgba(52,152,219,.3);border-top-color:#3498db;border-radius:50%;animation:admin-spin .8s linear infinite;margin-bottom:12px}@keyframes admin-spin{to{transform:rotate(1turn)}}.admin-empty{text-align:center;padding:40px;color:var(--admin-muted)}.admin-search{display:flex;gap:10px;margin-bottom:16px;align-items:center;flex-wrap:wrap}.admin-search .admin-input{flex:1 1;min-width:200px}.admin-tabs{display:flex;gap:4px;border-bottom:2px solid var(--admin-border);margin-bottom:18px}.admin-tab-btn{padding:9px 18px;background:none;border:none;border-bottom:3px solid transparent;cursor:pointer;font-size:.85rem;font-weight:600;color:var(--admin-muted);margin-bottom:-2px}.admin-tab-btn:hover{color:var(--admin-primary)}.admin-tab-btn.active{color:var(--admin-accent);border-bottom-color:var(--admin-accent)}.admin-tab-btn:disabled{color:#ccc;cursor:not-allowed}.admin-radio-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}.admin-radio-option{display:flex;align-items:center;gap:6px;padding:7px 12px;border:1px solid var(--admin-border);border-radius:6px;cursor:pointer;font-size:.85rem}.admin-radio-option.selected{border-color:var(--admin-accent);background:#ebf5ff}.admin-subcard{border:1px solid var(--admin-border);border-radius:8px;padding:14px 16px;margin-bottom:14px;background:#fafbfc}.admin-login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--admin-bg);padding:20px}.admin-login-card{background:#fff;padding:28px;border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.1);width:100%;max-width:380px}.admin-login-card h1{margin:0 0 20px;text-align:center;color:var(--admin-primary);font-size:1.4rem}@media (max-width:768px){.admin-shell{flex-direction:column}.admin-sidebar{width:100%;height:auto;position:static}.admin-nav{flex-direction:row;flex-wrap:wrap}.admin-nav-link{padding:8px 12px;font-size:.8rem}}