* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            background-color: #f8fafc;
            overflow-x: hidden;
            line-height: 1.6;
        }
        
        /* Navigation */
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            transition: all 0.4s ease;
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        
        .navbar.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            padding: 0.5rem 0;
        }
        
        .navbar-brand {
            font-weight: 800;
            color: var(--primary-blue);
            font-size: 1.8rem;
            letter-spacing: -0.5px;
        }
        
        .nav-link {
            font-weight: 500;
            margin: 0 0.5rem;
            color: var(--text-dark);
            transition: all 0.3s ease;
            position: relative;
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-blue);
            transition: width 0.3s ease;
        }
        
        .nav-link:hover, .nav-link.active {
            color: var(--primary-blue);
        }
        
        .nav-link:hover::after, .nav-link.active::after {
            width: 100%;
        }
        
        /* Hero Section */
        .hero-section {
            background: var(--gradient-blue);
            color: white;
            padding: 180px 0 120px;
            position: relative;
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }
        
        .hero-bg-animation {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0.1;
        }
        
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        
        .hero-subtitle {
            font-size: 1.25rem;
            margin-bottom: 2.5rem;
            opacity: 0.9;
            max-width: 600px;
        }
        
        .btn-tech {
            background: white;
            color: var(--primary-blue);
            border: none;
            padding: 14px 35px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.4s ease;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            position: relative;
            overflow: hidden;
        }
        
        .btn-tech::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
            transition: left 0.7s ease;
        }
        
        .btn-tech:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
        }
        
        .btn-tech:hover::before {
            left: 100%;
        }
        
        .btn-outline-tech {
            background: transparent;
            color: white;
            border: 2px solid white;
            padding: 12px 33px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }
        
        .btn-outline-tech:hover {
            background: white;
            color: var(--primary-blue);
            transform: translateY(-5px);
        }
        
        /* Services Section */
        .section-title {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 1rem;
            text-align: center;
            position: relative;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--gradient-blue);
            border-radius: 2px;
        }
        
        .section-subtitle {
            color: var(--text-light);
            text-align: center;
            margin-bottom: 4rem;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
            font-size: 1.1rem;
        }
        
        .service-card {
            background: white;
            border-radius: 20px;
            padding: 2.5rem 2rem;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: all 0.5s ease;
            border: 1px solid #f1f5f9;
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: var(--gradient-blue);
            transform: scaleX(0);
            transition: transform 0.5s ease;
        }
        
        .service-card:hover {
            transform: translateY(-15px) scale(1.02);
            box-shadow: 0 25px 50px rgba(37, 99, 235, 0.15);
        }
        
        .service-card:hover::before {
            transform: scaleX(1);
        }
        
        .service-icon {
            width: 90px;
            height: 90px;
            background: var(--gradient-blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 2rem;
            transition: all 0.5s ease;
            position: relative;
            overflow: hidden;
        }
        
        .service-icon::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient-light);
            opacity: 0;
            transition: opacity 0.5s ease;
        }
        
        .service-card:hover .service-icon {
            transform: scale(1.1) rotate(5deg);
        }
        
        .service-card:hover .service-icon::before {
            opacity: 1;
        }
        
        .service-icon i {
            position: relative;
            z-index: 1;
        }
        
        .service-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }
        
        .service-description {
            color: var(--text-light);
            line-height: 1.7;
        }
        
        /* Animations */
        .floating-element {
            animation: float 6s ease-in-out infinite;
        }
        
        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(2deg); }
        }
        
        .pulse-element {
            animation: pulse 3s ease-in-out infinite;
        }
        
        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }
        
        .fade-in-up {
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s ease;
        }
        
        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .fade-in-left {
            opacity: 0;
            transform: translateX(-40px);
            transition: all 0.8s ease;
        }
        
        .fade-in-left.visible {
            opacity: 1;
            transform: translateX(0);
        }
        
        .fade-in-right {
            opacity: 0;
            transform: translateX(40px);
            transition: all 0.8s ease;
        }
        
        .fade-in-right.visible {
            opacity: 1;
            transform: translateX(0);
        }
        
        /* Stats Section */
        .stats-section {
            background: var(--gradient-blue);
            color: white;
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }
        
        .stat-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        
        .stat-number {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
            display: block;
        }
        
        .stat-label {
            font-size: 1.2rem;
            opacity: 0.9;
            font-weight: 500;
        }
        
        /* Portfolio Section */
        .portfolio-filter {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 3rem;
            gap: 10px;
        }
        
        .filter-btn {
            background: white;
            border: 1px solid #e5e7eb;
            padding: 10px 25px;
            border-radius: 30px;
            font-weight: 500;
            transition: all 0.4s ease;
            color: var(--text-dark);
            position: relative;
            overflow: hidden;
        }
        
        .filter-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 0;
            height: 100%;
            background: var(--gradient-blue);
            transition: width 0.4s ease;
            z-index: -1;
        }
        
        .filter-btn.active, .filter-btn:hover {
            color: blue;
            border-color: var(--primary-blue);
        }
        
        .filter-btn.active::before, .filter-btn:hover::before {
            width: 100%;
        }
        
        .portfolio-item {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            margin-bottom: 30px;
            transition: all 0.5s ease;
            background: white;
            opacity: 0;
            transform: translateY(30px);
        }
        
        .portfolio-item.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .portfolio-item:hover {
            transform: translateY(-15px) scale(1.02);
            box-shadow: 0 25px 50px rgba(37, 99, 235, 0.15);
        }
        
        .portfolio-img {
            height: 250px;
            background-color: #e2e8f0;
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }
        
        .portfolio-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: all 0.4s ease;
        }
        
        .portfolio-item:hover .portfolio-overlay {
            opacity: 0.9;
        }
        
        .portfolio-content {
            padding: 1.8rem;
        }
        
        .portfolio-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-dark);
        }
        
        .portfolio-category {
            color: var(--primary-blue);
            font-weight: 600;
            font-size: 0.95rem;
        }
        
        /* Process Section */
        .process-section {
            background: white;
            padding: 100px 0;
        }
        
        .process-item {
            text-align: center;
            padding: 0 1.5rem;
            position: relative;
        }
        
        .process-number {
            width: 60px;
            height: 60px;
            background: var(--gradient-blue);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0 auto 1.5rem;
            position: relative;
            z-index: 1;
        }
        
        .process-line {
            position: absolute;
            top: 30px;
            left: 50%;
            width: 100%;
            height: 2px;
            background: #e5e7eb;
            z-index: 0;
        }
        
        .process-item:last-child .process-line {
            display: none;
        }
        
        .process-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }
        
        .process-description {
            color: var(--text-light);
        }
        
        /* Testimonials */
        .testimonial-section {
            background: #f8fafc;
            padding: 100px 0;
        }
        
        .testimonial-card {
            background: white;
            border-radius: 20px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            margin: 1rem;
            transition: all 0.4s ease;
            position: relative;
        }
        
        .testimonial-card::before {
            content: "";
            position: absolute;
            top: 20px;
            right: 30px;
            font-size: 5rem;
            color: var(--primary-blue);
            opacity: 0.1;
            font-family: Georgia, serif;
            line-height: 1;
        }
        
        .testimonial-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(37, 99, 235, 0.1);
        }
        
        .testimonial-text {
            font-style: italic;
            margin-bottom: 1.5rem;
            color: var(--text-dark);
            line-height: 1.7;
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
        }
        
        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--gradient-blue);
            margin-right: 1rem;
        }
        
        .author-info h4 {
            font-weight: 600;
            margin-bottom: 0.2rem;
            color: var(--text-dark);
        }
        
        .author-info p {
            color: var(--text-light);
            font-size: 0.9rem;
        }
        
        /* CTA Section */
        .cta-section {
            background: var(--gradient-blue);
            color: white;
            padding: 120px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .cta-title {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
        }
        
        .cta-subtitle {
            font-size: 1.2rem;
            margin-bottom: 2.5rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            opacity: 0.9;
        }
        
        /* Footer */
        .footer {
            background: var(--text-dark);
            color: white;
            padding: 80px 0 30px;
        }
        
        .footer-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            position: relative;
            display: inline-block;
        }
        
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--primary-blue);
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
        }
        
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        
        .footer-links a {
            color: #d1d5db;
            text-decoration: none;
            transition: all 0.3s ease;
            position: relative;
            padding-left: 0;
            transition: padding-left 0.3s ease;
        }
        
        .footer-links a:hover {
            color: white;
            padding-left: 8px;
        }
        
        .footer-links a::before {
            content: '▸';
            position: absolute;
            left: -10px;
            opacity: 0;
            transition: all 0.3s ease;
        }
        
        .footer-links a:hover::before {
            opacity: 1;
            left: 0;
        }
        
        .social-icons {
            display: flex;
            gap: 15px;
            margin-top: 1.5rem;
        }
        
        .social-icon {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            transition: all 0.4s ease;
            text-decoration: none;
        }
        
        .social-icon:hover {
            background: var(--primary-blue);
            transform: translateY(-5px) rotate(10deg);
        }
        
        .copyright {
            text-align: center;
            padding-top: 3rem;
            margin-top: 3rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #9ca3af;
        }
        
        /* Back to Top Button */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--primary-blue);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transition: all 0.4s ease;
            z-index: 1000;
            box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
        }
        
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        
        .back-to-top:hover {
            background: var(--dark-blue);
            transform: translateY(-5px);
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .process-line {
                display: none;
            }
            
            .stat-number {
                font-size: 2.5rem;
            }
            
            .cta-title {
                font-size: 2.2rem;
            }
        }