:root {
            --primary-color: #4361ee;
            --secondary-color: #3f37c9;
            --text-color: #2b2d42;
            --light-color: #f8f9fa;
            --border-radius: 0.5rem;
            --transition: all 0.3s ease;
        }
        
        * {
            box-sizing: border-box;
        }
        

        

        
        .tab-container {
            width: 100%;
            /*max-width: 800px;*/
            background: white;
            border-radius: var(--border-radius);
            box-shadow: 0 0px 30px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }
        
        .tab-header {
            display: flex;
            background: var(--light-color);
            border-bottom: 1px solid #e9ecef;
        }
        
        .tab-btn {
            flex: 1;
            padding: 1.5rem 1.5rem;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 18px;
            font-weight: 600;
            color: var(--text-color);
            transition: var(--transition);
            position: relative;
            text-align: center;


        }
        
        .tab-btn:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: var(--primary-color);
            transition: var(--transition);
        }
        
        .tab-btn:hover {
            color: var(--primary-color);
            background: rgba(67, 97, 238, 0.05);
            
        }
        
        .tab-btn.active {
            color: var(--primary-color);
        }
        
        .tab-btn.active:after {
            width: 100%;
        }
        
        .tab-content {
            padding: 2rem;
        }
        
        .tab-pane {
            display: none;
            animation: fadeIn 0.5s ease;
        }
        
        .tab-pane-img{
            transition: filter 0.3s ease;
        }
        .tab-pane-img:hover{
            filter: grayscale(100%);
            filter:alpha(Opacity=30);  
            -moz-opacity:0.3;  
            opacity: 0.3;  

        }
        .tab-div-img{
            width:20%; float: left; text-align: center;
        }

        .tab-div-img-2{
            width:25%; float: left; text-align: center;
        }

        .tab-pane.active {
            display: block;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .tab-pane h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        
        .tab-pane p {
            color: var(--text-color);
            line-height: 1.6;
        }