/* Base styles and reset */
        :root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --secondary: #10b981;
            --dark: #1f2937;
            --darker: #111827;
            --light: #f3f4f6;
            --gray: #9ca3af;
            --card-bg: #374151;
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--light);
            background-color: var(--darker);
            overflow-x: hidden;
        }
        
        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }
        
        a:hover {
            color: var(--secondary);
        }
        
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: white;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        
        .btn-outline:hover {
            background: var(--primary);
            color: white;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: white;
        }
        
        .section-title p {
            color: var(--gray);
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* Header and Navigation */
        header {
            background-color: rgba(17, 24, 39, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
           /* position: sticky;*/
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.2rem 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
        }
        
        .logo i {
            margin-right: 10px;
            color: var(--primary);
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 2rem;
        }
        
        .nav-links a {
            color: var(--light);
            font-weight: 500;
            position: relative;
        }
        
        .nav-links a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -5px;
            left: 0;
            background-color: var(--primary);
            transition: var(--transition);
        }
        
        .nav-links a:hover:after {
            width: 100%;
        }
        
        /* Banner Section */
        .banner {
            padding: 6rem 0;
            background: linear-gradient(to right, rgba(31, 41, 55, 0.9), rgba(17, 24, 39, 0.8)), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect fill="%234f46e5" width="50" height="50"/><rect fill="%234f46e5" x="50" y="50" width="50" height="50"/></svg>');
            background-size: cover;
            background-position: center;
            text-align: center;
        }
        
        .banner-content {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .banner h1 {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        
        .banner p {
            font-size: 1.2rem;
            color: var(--gray);
            margin-bottom: 2.5rem;
        }
        
        /* About Section */
        .about {
            padding: 5rem 0;
            background-color: var(--dark);
        }
        
        .about-content {
            display: flex;
            align-items: center;
            gap: 4rem;
        }
        
        .about-text {
            flex: 1;
        }
        
        .about-text h3 {
            font-size: 2rem;
            margin-bottom: 1.5rem;
            color: white;
        }
        
        .about-text p {
            margin-bottom: 1.5rem;
            color: var(--gray);
        }
        
        .about-image {
            flex: 1;
            height: 400px;
            background: linear-gradient(45deg, var(--primary-dark), var(--secondary));
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }
        
        /* Features Section */
        .features {
            padding: 5rem 0;
            background-color: var(--darker);
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .feature-card {
            background: var(--card-bg);
            padding: 2rem;
            border-radius: 15px;
            transition: var(--transition);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
        }
        
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
        }
        
        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: white;
        }
        
        .feature-card p {
            color: var(--gray);
        }
        
        /* FAQ Section */
        .faq {
            padding: 5rem 0;
            background-color: var(--dark);
        }
        
        .faq-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .faq-item {
            margin-bottom: 1.5rem;
            border: 1px solid var(--card-bg);
            border-radius: 10px;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 1.5rem;
            background: var(--card-bg);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: white;
        }
        
        .faq-answer {
            padding: 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease, padding 0.5s ease;
            background: var(--darker);
        }
        
        .faq-item.active .faq-answer {
            padding: 1.5rem;
            max-height: 300px;
        }
        
        /* Testimonials Section */
        .testimonials {
            padding: 5rem 0;
            background-color: var(--darker);
        }
        
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .testimonial-card {
            background: var(--card-bg);
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }
        
        .testimonial-text {
            font-style: italic;
            margin-bottom: 1.5rem;
            color: var(--light);
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
        }
        
        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            font-weight: bold;
        }
        
        .author-details h4 {
            color: white;
        }
        
        .author-details p {
            color: var(--gray);
            font-size: 0.9rem;
        }
        
        /* Topics Section */
        .topics {
            padding: 5rem 0;
            background-color: var(--dark);
        }
        
        .topics-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.5rem;
        }
        
        .topic-link {
            padding: 0.8rem 1.5rem;
            background: var(--card-bg);
            border-radius: 30px;
            transition: var(--transition);
            color: var(--light);
            font-weight: 500;
        }
        
        .topic-link:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-3px);
        }
        
        /* Footer */
        footer {
            background-color: var(--darker);
            padding: 4rem 0 2rem;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        
        .footer-column h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        
        .footer-column p {
            color: var(--gray);
            margin-bottom: 1.5rem;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        
        .footer-links a {
            color: var(--gray);
        }
        
        .footer-links a:hover {
            color: var(--primary);
        }
        
        .social-links {
            display: flex;
            gap: 1rem;
        }
        
        .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--card-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        
        .social-links a:hover {
            background: var(--primary);
            transform: translateY(-3px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--card-bg);
            color: var(--gray);
        }
        
        /* Responsive Design */
        @media (max-width: 992px) {
            .about-content {
                flex-direction: column;
            }
            
            .about-image {
                width: 100%;
                margin-top: 2rem;
            }
            
            .banner h1 {
                font-size: 2.8rem;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            

            .banner h1 {
                font-size: 2.2rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
        }