:root {
            --primary: #0a2463;
            --secondary: #61dafb;
            --accent: #ff4d4d;
            --dark: #1e1e2c;
            --light: #f8f9fa;
            --gray: #6c757d;
            --success: #28a745;
            --warning: #ffc107;
            --info: #17a2b8;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Poppins', sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f5f7fb 0%, #e8ecf1 100%);
            overflow-x: hidden;
        }
        
        h1, h2, h3, h4, h5 {
            font-family: 'Orbitron', sans-serif;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--dark);
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header & Navigation */
        header {
            background: linear-gradient(135deg, var(--primary) 0%, #1e3a8a 100%);
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo-text {
            font-family: 'Orbitron', sans-serif;
            font-size: 24px;
            font-weight: 700;
            color: white;
            margin-left: 10px;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        }
        
        .logo-text span {
            color: var(--secondary);
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
        }
        
        .nav-item {
            position: relative;
            margin: 0 12px;
        }
        
        .nav-link {
            color: white;
            text-decoration: none;
            font-size: 16px;
            font-weight: 500;
            padding: 10px 0;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
        }
        
        .nav-link:hover {
            color: var(--secondary);
            transform: translateY(-2px);
        }
        
        .nav-link i {
            margin-left: 5px;
            font-size: 14px;
        }
        
        .dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            width: 200px;
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            opacity: 0;
            visibility: hidden;
            transform: translateY(15px);
            transition: all 0.3s ease;
            z-index: 1000;
        }
        
        .nav-item:hover .dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(5px);
        }
        
        .dropdown-item {
            display: block;
            padding: 12px 20px;
            color: var(--dark);
            text-decoration: none;
            font-size: 15px;
            transition: all 0.3s ease;
            border-bottom: 1px solid #f1f1f1;
        }
        
        .dropdown-item:hover {
            background-color: #f8f9fa;
            color: var(--primary);
            padding-left: 25px;
        }
        
        .nav-icons {
            display: flex;
            align-items: center;
        }
        
        .cart-count {
            position: absolute;
            top: -8px;
            right: -8px;
            background-color: var(--accent);
            color: white;
            font-size: 12px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        /* Mobile Menu Button (Hidden by Default) */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 24px;
            cursor: pointer;
            z-index: 1001;
            order: 2;
            margin-left: 15px;
        }
        
        /* Profile Icon for Mobile */
        .profile-icon-mobile {
            display: none;
        }
        
        /* Mobile Navigation */
        .mobile-nav {
            position: fixed;
            top: 0;
            right: -300px;
            width: 300px;
            height: 100vh;
            background: linear-gradient(135deg, var(--primary) 0%, #1e3a8a 100%);
            z-index: 999;
            transition: right 0.4s ease;
            padding: 80px 20px 20px;
            overflow-y: auto;
            box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
        }
        
        .mobile-nav.active {
            right: 0;
        }
        
        .mobile-nav-list {
            list-style: none;
        }
        
        .mobile-nav-item {
            margin-bottom: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .mobile-nav-link {
            color: white;
            text-decoration: none;
            font-size: 18px;
            padding: 12px 0;
            display: block;
            transition: all 0.3s ease;
        }
        
        .mobile-nav-link:hover {
            color: var(--secondary);
            padding-left: 10px;
        }
        
        .mobile-dropdown-btn {
            background: none;
            border: none;
            color: white;
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 12px 0;
            text-align: left;
        }
        
        .mobile-dropdown {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        
        .mobile-dropdown.active {
            max-height: 500px;
        }
        
        .mobile-dropdown-item {
            display: block;
            padding: 10px 15px;
            color: white;
            text-decoration: none;
            font-size: 16px;
            transition: all 0.3s ease;
            border-left: 2px solid transparent;
        }
        
        .mobile-dropdown-item:hover {
            color: var(--secondary);
            border-left: 2px solid var(--secondary);
            padding-left: 20px;
        }
        
        .close-mobile-menu {
            position: absolute;
            top: 20px;
            right: 20px;
            background: none;
            border: none;
            color: white;
            font-size: 24px;
            cursor: pointer;
        }
        
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            z-index: 998;
            opacity: 0;
            visibility: hidden;
            transition: all 0.4s ease;
        }
        
        .overlay.active {
            opacity: 1;
            visibility: visible;
        }
        
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--secondary) 0%, #4ec5e3 100%);
            color: var(--dark);
            border: none;
            border-radius: 50px;
            font-family: 'Orbitron', sans-serif;
            font-weight: 500;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(97, 218, 251, 0.3);
        }
        
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(97, 218, 251, 0.4);
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid var(--secondary);
            color: var(--secondary);
            box-shadow: none;
        }
        
        .btn-outline:hover {
            background: linear-gradient(135deg, var(--secondary) 0%, #4ec5e3 100%);
            color: var(--dark);
            box-shadow: 0 8px 20px rgba(97, 218, 251, 0.4);
        }
        
        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, #1e3a8a 100%);
            color: white;
            padding: 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAw0MC9zdmciIHdpZHRoPSI2MCIgaGVpZ2h0PSI2MCIgdmlld0JveD0iMCAwIDYwIDYwIj48ZyBmaWxsPSJub25lIiBzdHJva2U9IndoaXRlIiBzdHJva2Utd2lkdGg9IjAuNSIgb3BhY2l0eT0iMC4xIj48cGF0aCBdPSJNMCAwaDYwdjYwSDB6Ii8+PC9nPjwvc3ZnPg==');
            opacity: 0.1;
        }
        
        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            color: white;
            animation: fadeInUp 1s ease;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }
        
        .hero p {
            font-size: 1.2rem;
            margin-bottom: 40px;
            opacity: 0.9;
            animation: fadeInUp 1s ease 0.2s;
            animation-fill-mode: both;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            animation: fadeInUp 1s ease 0.4s;
            animation-fill-mode: both;
        }
        
        /* Features Grid */
        .features {
            padding: 80px 0;
            background-color: white;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--primary);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 2px;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .feature-card {
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            text-align: center;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }
        
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            opacity: 0.05;
            transition: all 0.4s ease;
            z-index: -1;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        
        .feature-card:hover::before {
            height: 100%;
        }
        
        .feature-icon {
            font-size: 40px;
            color: var(--secondary);
            margin-bottom: 20px;
            transition: all 0.3s ease;
        }
        
        .feature-card:hover .feature-icon {
            color: var(--primary);
            transform: scale(1.1);
        }
        
        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            transition: all 0.3s ease;
        }
        
        .feature-card:hover h3 {
            color: var(--primary);
        }
        
        /* Courses & Products Sections */
        .section {
            padding: 80px 0;
        }
        
        .section-alt {
            background-color: #f8f9fa;
        }
        
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin-bottom: 40px;
        }
        
        .card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
            transition: all 0.4s ease;
            position: relative;
        }
        
        .card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
        }
        
        .card-img {
            height: 160px;
            background: linear-gradient(135deg, var(--primary) 0%, #1e3a8a 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 24px;
            position: relative;
            overflow: hidden;
            padding: 15px;
        }
        
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 10px;
            border: 2px solid white
        }
        
        .card-img::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAw0MC9zdmciIHdpZHRoPSI2MCIgaGVpZ2h0PSI2MCIgdmlld0JveD0iMCAwIDYwIDYwIj48ZyBmaWxsPSJub25lIiBzdHJva2U9IndoaXRlIiBzdHJva2Utd2lkdGg9IjAuNSIgb3BhY2l0eT0iMC4xIj48cGF0aCBkPSJNMCAwaDYwdjYwSDB6Ii8+PC9nPjwvc3ZnPg==');
            opacity: 0.1;
        }
        
        .card-content {
            padding: 20px;
        }
        
        .card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            transition: all 0.3s ease;
        }
        
        .card:hover h3 {
            color: var(--primary);
        }
        
        .card p {
            color: var(--gray);
            margin-bottom: 20px;
            font-size: 0.9rem;
            line-height: 1.5;
        }
        
        .price {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 20px;
            display: block;
            font-weight: 600;
        }
        
        .card-buttons {
            display: flex;
            justify-content: space-between;
        }
        
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            border-radius: 20px;
        }
        
        .view-more {
            text-align: center;
        }
        
        /* Footer */
        footer {
            background: linear-gradient(135deg, var(--dark) 0%, #2d2d42 100%);
            color: white;
            padding: 60px 0 30px;
            position: relative;
        }
        
        footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAw0MC9zdmciIHdpZHRoPSI2MCIgaGVpZ2h0PSI2MCIgdmlld0JveD0iMCAwIDYwIDYwIj48ZyBmaWxsPSJub25lIiBzdHJva2U9IndoaXRlIiBzdHJva2Utd2lkdGg9IjAuNSIgb3BhY2l0eT0iMC4wNSI+PHBhdGggZD0iTTAgMGg6MHY2MEgweiIvPjwvZz48L3N2Zz4=');
            opacity: 0.1;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
            position: relative;
            z-index: 1;
        }
        
        .footer-column h3 {
            color: var(--secondary);
            font-size: 1.3rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: linear-gradient(90deg, var(--secondary), transparent);
            border-radius: 2px;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
        }
        
        .footer-links i {
            margin-right: 10px;
            color: var(--secondary);
        }
        
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: all 0.3s ease;
            display: block;
        }
        
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }
        
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary) 0%, #1e3a8a 100%);
            border-radius: 50%;
            color: white;
            transition: all 0.3s ease;
        }
        
        .social-links a:hover {
            background: linear-gradient(135deg, var(--secondary) 0%, #4ec5e3 100%);
            transform: translateY(-3px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #999;
            font-size: 0.9rem;
            position: relative;
            z-index: 1;
        }
        
        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes pulse {
            0% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1);
            }
        }
        
        /* Responsive Design */
        @media (max-width: 992px) {
            .nav-menu {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .profile-icon-mobile {
                display: block;
                order: 1;
            }
            
            .nav-icons .icon-link:last-child {
                display: none;
            }
            
            .hero h1 {
                font-size: 2.8rem;
            }
            
            .card-grid {
                grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            }
        }
        
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .card-grid {
                grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            }
        }
        
        @media (max-width: 576px) {
            .hero {
                padding: 60px 0;
            }
            
            .hero h1 {
                font-size: 1.8rem;
            }
            
            .feature-card, .card {
                padding: 20px;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .mobile-nav {
                width: 280px;
            }
            
            .nav-icons {
                order: 3;
            }
        }