:root {
            --primary-color: #2c7da0;
            --secondary-color: #a9d6e5;
            --accent-color: #01497c;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #333;
            --text-muted: #6c757d;
            --success-color: #28a745;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
            --aim-green: #198754;
            --aim-blue: #0d6efd;
            --aim-purple: #6f42c1;
            --game-bg: #f0f8ff;
        }
         
        /* Game Container */
        .game-container {
            position: relative;
            width: 100%;
            height: 500px;
            background-color: var(--game-bg);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            margin-bottom: 1.5rem;
            box-shadow: inset 0 0 10px rgba(0,0,0,0.05);
        }
        
        #gameCanvas {
            width: 100%;
            height: 100%;
            display: block;
        }
        
        .game-ui {
 
            top: 20px;
            left: 20px;
            right: 20px;
            display: flex;
            justify-content: space-between;
            z-index: 10;
            pointer-events: none;
        }
        
        .game-stats {
            background: rgba(255, 255, 255, 0.9);
            border-radius: 8px;
            padding: 0.75rem 1.5rem;
            border: 1px solid var(--border-color);
            display: flex;
            gap: 2rem;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
        }
        
        .stat-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.25rem;
        }
        
        .stat-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        
        .game-controls {
            display: flex;
            gap: 0.75rem;
            pointer-events: auto;
        }
         
        .btn-success {
            background-color: var(--aim-green);
            border-color: var(--aim-green);
        }
        
        .btn-danger {
            background-color: var(--danger-color);
            border-color: var(--danger-color);
        }
        
        /* Training Modes */
        .training-modes {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        
        .mode-card {
            background: white;
            border-radius: 10px;
            padding: 1.5rem;
            border: 2px solid transparent;
            transition: all 0.3s;
            cursor: pointer;
            border: 1px solid var(--border-color);
        }
        
        .mode-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary-color);
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        }
        
        .mode-card.active {
            border-color: var(--primary-color);
            background: rgba(44, 125, 160, 0.05);
        }
        
        .mode-icon {
            width: 60px;
            height: 60px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            font-size: 1.5rem;
            color: white;
        }
        
        .mode-name {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-color);
        }
        
        .mode-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        /* Settings Panel */
        .settings-panel {
            background: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }
        
        .settings-title {
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--primary-color);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        
        .form-label {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-color);
        }
        
        .form-range {
            width: 100%;
            height: 8px;
            border-radius: 4px;
            background: #e9ecef;
            outline: none;
        }
        
        .form-range::-webkit-slider-thumb {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary-color);
            cursor: pointer;
            border: 2px solid white;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
        }
        
        .range-value {
            display: inline-block;
            background: var(--primary-color);
            color: white;
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            font-weight: 600;
            margin-left: 1rem;
        }
     
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }
        
        .stat-card {
            background: var(--light-gray);
            border-radius: 8px;
            padding: 1.25rem;
            text-align: center;
            border-left: 4px solid var(--primary-color);
        }
        
        .stat-card .value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        
        .stat-card .label {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
       
        
        /* Leaderboard */
        .leaderboard {
            background: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            margin-top: 1.5rem;
        }
        
        .leaderboard-title {
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--primary-color);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        
        .leaderboard-table {
            width: 100%;
            border-collapse: collapse;
        }
        
        .leaderboard-table th {
            text-align: left;
            padding: 1rem;
            color: var(--text-muted);
            border-bottom: 1px solid var(--border-color);
            font-weight: 600;
        }
        
        .leaderboard-table td {
            padding: 1rem;
            border-bottom: 1px solid var(--border-color);
        }
        
        .leaderboard-table tr:hover {
            background-color: rgba(44, 125, 160, 0.05);
        }
        
        .rank-1 {
            color: #d4af37;
            font-weight: bold;
        }
        
        .rank-2 {
            color: #c0c0c0;
            font-weight: bold;
        }
        
        .rank-3 {
            color: #cd7f32;
            font-weight: bold;
        }
        
        /* Achievements */
        .achievements-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 1.5rem;
            margin-top: 1.5rem;
        }
        
        .achievement-card {
            background: white;
            border-radius: 8px;
            padding: 1.25rem;
            text-align: center;
            transition: all 0.3s;
            border: 1px solid var(--border-color);
        }
        
        .achievement-card.unlocked {
            border: 2px solid var(--aim-green);
            box-shadow: 0 5px 15px rgba(25, 135, 84, 0.1);
        }
        
        .achievement-card.locked {
            opacity: 0.6;
            background-color: #f8f9fa;
        }
        
        .achievement-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(44, 125, 160, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        
        .achievement-card.unlocked .achievement-icon {
            background: linear-gradient(135deg, var(--aim-green), var(--primary-color));
            color: white;
        }
        
        .achievement-name {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-color);
        }
        
        .achievement-desc {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        
        
        /* Responsive */
        @media (max-width: 768px) {
            .game-container {
                height: 400px;
            }
            
            .game-stats {
                flex-direction: column;
                gap: 0.5rem;
                padding: 0.5rem 1rem;
            }
            
            .stat-value {
                font-size: 1.2rem;
            }
            
            .training-modes {
                grid-template-columns: 1fr;
            }
        }
        
        /* Animation Classes */
        @keyframes targetHit {
            0% { transform: scale(1); }
            50% { transform: scale(1.2); }
            100% { transform: scale(0); opacity: 0; }
        }
        
        @keyframes scorePopup {
            0% { opacity: 1; transform: translateY(0); }
            100% { opacity: 0; transform: translateY(-50px); }
        }
        
        .hit-animation {
            animation: targetHit 0.3s forwards;
        }
        
        .score-popup {
            position: absolute;
            color: #d4af37;
            font-weight: bold;
            font-size: 1.2rem;
            pointer-events: none;
            animation: scorePopup 1s forwards;
            text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
        }
        
        /* Crosshair */
        .crosshair {
            position: absolute;
            width: 20px;
            height: 20px;
            border: 2px solid var(--primary-color);
            border-radius: 50%;
            pointer-events: none;
            z-index: 100;
            transform: translate(-50%, -50%);
            background: rgba(255, 255, 255, 0.3);
        }
        
        .crosshair::before, .crosshair::after {
            content: '';
            position: absolute;
            background-color: var(--primary-color);
        }
        
        .crosshair::before {
            width: 2px;
            height: 20px;
            top: -10px;
            left: 50%;
            transform: translateX(-50%);
        }
        
        .crosshair::after {
            width: 20px;
            height: 2px;
            left: -10px;
            top: 50%;
            transform: translateY(-50%);
        }
        
        /* Progress Bar */
        .progress {
            height: 10px;
            background-color: #e9ecef;
            border-radius: 5px;
            margin-bottom: 1rem;
            overflow: hidden;
        }
        
        .progress-bar {
            background: linear-gradient(90deg, var(--primary-color), var(--aim-green));
            border-radius: 5px;
        }
        
        /* Action Buttons */
        .action-btn {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 0.5rem 1rem;
            margin-left: 0.5rem;
            transition: all 0.3s;
            color: var(--text-color);
        }
        
        .action-btn:hover {
            background-color: var(--light-gray);
            color: var(--primary-color);
        }
        
        /* Form elements */
        .form-control, .form-select {
            border: 1px solid #ddd;
            border-radius: 6px;
            padding: 0.75rem;
            transition: all 0.3s;
        }
        
        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(44, 125, 160, 0.15);
        }
        
        /* Toast notifications */
        .toast-container {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 1050;
        }
        
        /* Info Box */
        .info-box {
            background-color: rgba(44, 125, 160, 0.05);
            border-left: 3px solid var(--primary-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
         
        /* Tips Section */
        .tips-list .list-group-item {
            border-color: var(--border-color);
            background-color: transparent;
        }
        
        /* Form Check */
        .form-check-input:checked {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
         
        /* Badge */
        .badge {
            padding: 0.35em 0.65em;
            font-size: 0.75em;
            font-weight: 600;
        }