.admin-page {
            min-height: 100vh;
            background: var(--bg-primary);
            padding: 20px;
        }
        
        .admin-header {
            max-width: 1200px;
            margin: 0 auto 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        
        .admin-title {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-primary);
        }
        
        .admin-title span { color: var(--green-400); }
        
        .admin-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-right: 8px;
        }
        
        .badge-owner { background: rgba(234,179,8,0.15); color: #facc15; }
        .badge-admin { background: rgba(59,130,246,0.15); color: #60a5fa; }
        .badge-student { background: rgba(99,102,241,0.15); color: #A5B4FC; }
        
        .admin-nav {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        
        .admin-nav a, .admin-nav button {
            padding: 8px 16px;
            border-radius: 8px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            background: transparent;
            cursor: pointer;
            font-family: 'Tajawal', sans-serif;
            transition: all 0.3s;
        }
        
        .admin-nav a:hover, .admin-nav button:hover {
            border-color: var(--green-400);
            color: var(--green-400);
        }
        
        .admin-nav .logout-btn { border-color: #ef4444; color: #ef4444; }
        .admin-nav .logout-btn:hover { background: rgba(239,68,68,0.1); }
        
        .stats-grid {
            max-width: 1200px;
            margin: 0 auto 30px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 16px;
        }
        
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 24px;
            text-align: center;
        }
        
        .stat-icon { font-size: 32px; margin-bottom: 8px; }
        .stat-value { font-size: 28px; font-weight: 800; color: var(--text-primary); }
        .stat-label { font-size: 14px; color: var(--text-secondary); margin-top: 4px; }
        
        .admin-section {
            max-width: 1200px;
            margin: 0 auto 30px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
        }
        
        .section-header {
            padding: 20px 24px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .section-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
        }
        
        .users-table {
            width: 100%;
            border-collapse: collapse;
        }
        
        .users-table th {
            padding: 12px 20px;
            text-align: right;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            background: var(--bg-tertiary);
            border-bottom: 1px solid var(--border-color);
        }
        
        .users-table td {
            padding: 14px 20px;
            font-size: 14px;
            color: var(--text-primary);
            border-bottom: 1px solid rgba(255,255,255,0.03);
        }
        
        .users-table tr:hover td {
            background: rgba(255,255,255,0.02);
        }
        
        .role-select {
            padding: 4px 10px;
            border-radius: 6px;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-family: 'Tajawal', sans-serif;
            font-size: 13px;
            cursor: pointer;
        }
        
        .history-item {
            padding: 16px 24px;
            border-bottom: 1px solid rgba(255,255,255,0.03);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        
        .history-item:last-child { border-bottom: none; }
        
        .history-info { flex: 1; }
        .history-name { font-weight: 600; color: var(--text-primary); font-size: 14px; }
        .history-detail { color: var(--text-secondary); font-size: 13px; margin-top: 2px; }
        
        .history-score {
            font-size: 18px;
            font-weight: 700;
        }
        
        .score-high { color: #6366F1; }
        .score-mid { color: #f59e0b; }
        .score-low { color: #ef4444; }
        
        .empty-state {
            padding: 40px;
            text-align: center;
            color: var(--text-muted);
        }
        
        .loading-state {
            padding: 40px;
            text-align: center;
            color: var(--text-muted);
        }
        
        .loading-state .spinner {
            width: 30px; height: 30px;
            border: 3px solid var(--border-color);
            border-top-color: var(--green-400);
            border-radius: 50%;
            animation: spin 0.6s linear infinite;
            margin: 0 auto 12px;
        }
        
        @keyframes spin { to { transform: rotate(360deg); } }
        
        @media (max-width: 768px) {
            .users-table { font-size: 13px; }
            .users-table th, .users-table td { padding: 10px 12px; }
            .history-item { flex-direction: column; align-items: flex-start; }
        }