:root {
            --primary-color: #1CB098;
            --secondary-color: #e0f7fb;
        }
        
        .bg-primary-custom {
            background-color: var(--primary-color) !important;
        }
        
        .bg-secondary-custom {
            background-color: var(--secondary-color) !important;
        }
        
        .text-primary-custom {
            color: var(--primary-color) !important;
        }
        
        .btn-primary-custom {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            color: white;
        }
        
        .btn-primary-custom:hover {
            background-color: #16967e;
            border-color: #16967e;
        }
        
        .hero-section {
            background: linear-gradient(rgba(28, 176, 152, 0.9), rgba(28, 176, 152, 0.8)), url('https://images.unsplash.com/photo-1522202176988-66273c2fd55f?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0;
        }
        
        .section-title {
            position: relative;
        }
        
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        
        .timeline {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .timeline::after {
            content: '';
            position: absolute;
            width: 6px;
            background-color: var(--primary-color);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -3px;
        }
        
        .timeline-item {
            padding: 10px 40px;
            position: relative;
            width: 50%;
            box-sizing: border-box;
        }
        
        .timeline-item::after {
            content: '';
            position: absolute;
            width: 25px;
            height: 25px;
            background-color: white;
            border: 4px solid var(--primary-color);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }
        
        .left {
            left: 0;
        }
        
        .right {
            left: 50%;
        }
        
        .left::after {
            right: -13px;
        }
        
        .right::after {
            left: -13px;
        }
        
        .timeline-content {
            padding: 20px 30px;
            background-color: white;
            position: relative;
            border-radius: 6px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .language-card {
            transition: transform 0.3s;
            border: 10px!important;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            height: 100%;
        }
        
        .language-card:hover {
            transform: translateY(-10px);
        }
        
        .language-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        
        .accordion-button:not(.collapsed) {
            background-color: var(--secondary-color);
            color: var(--primary-color);
        }
        
        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary-color);
        }
        
        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231CB098'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }
        
        footer {
            background-color: #2c3e50;
            color: white;
        }
        
        @media screen and (max-width: 768px) {
            .timeline::after {
                left: 31px;
            }
            
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            
            .timeline-item::after {
                left: 18px;
            }
            
            .left::after, .right::after {
                left: 18px;
            }
            
            .right {
                left: 0%;
            }
        }
        
        .stats-section {
            background-color: var(--primary-color);
            color: white;
            padding: 80px 0;
        }
        
        .stat-number {
            font-size: 3rem;
            font-weight: bold;
            margin-bottom: 10px;
        }