   background: #4caf50;
            color: white;
        }
        
        .btn-add:hover {
            background: #45a049;
            transform: translateY(-1px);
            box-shadow: 0 2px 8px rgba(76, 175, 80, 0.3);
        }
        
        .btn-remove {
            background: #f44336;
            color: white;
        }
        
        .btn-remove:hover {
            background: #da190b;
            transform: translateY(-1px);
            box-shadow: 0 2px 8px rgba(244, 67, 54, 0.3);
       