/* Modern Color Scheme */
        :root {
            --primary: #4361ee;
            --primary-dark: #3a56d4;
            --primary-light: #ebf0ff;
            --secondary: #7209b7;
            --accent: #f72585;
            --dark: #212529;
            --light: #f8f9fa;
            --gray: #6c757d;
            --light-gray: #e9ecef;
            
            /* Glassmorphism Variables */
            --glass-bg-light: rgba(255, 255, 255, 0.15);
            --glass-border-light: rgba(255, 255, 255, 0.18);
            --glass-shadow-light: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
            --glass-bg-dark: rgba(30, 30, 30, 0.6);
            --glass-border-dark: rgba(255, 255, 255, 0.1);
            --glass-shadow-dark: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
            --glass-blur: blur(12px);
            
            /* Dark Mode Colors */
            --dark-bg: #121212;
            --dark-card: rgba(30, 30, 30, 0.8);
            --dark-text: #e0e0e0;
            --dark-border: rgba(255, 255, 255, 0.1);
            --dark-gray: #9e9e9e;
        }

        /* Base Styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 90px;
        }

        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.7;
            transition: all 0.3s ease;
            font-size: 1.05rem;
        }

        body.dark-mode {
            background-color: var(--dark-bg);
            color: var(--dark-text);
            --light: var(--dark-bg);
            --dark: var(--dark-text);
            --gray: var(--dark-gray);
            --light-gray: var(--dark-border);
        }

        /* Typography */
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 1.5rem;
        }

        h1 {
            font-size: 3.2rem;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: inline-block;
        }

        h2 {
            font-size: 2.4rem;
            text-align: center;
            margin-bottom: 3.5rem;
            position: relative;
            color: var(--dark);
        }

        body.dark-mode h2 {
            color: var(--dark-text);
        }

        h2::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 2px;
        }

        h3 {
            font-size: 1.8rem;
            margin-bottom: 1.2rem;
        }

        p {
            margin-bottom: 1.5rem;
            color: var(--gray);
        }

        a {
            text-decoration: none;
            color: var(--primary);
            transition: all 0.3s ease;
        }

        a:hover {
            color: var(--secondary);
        }

        /* Layout */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            position: relative;
            z-index: 1;
        }

        section {
            padding: 6rem 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 4rem;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.8rem 2rem;
            background: var(--primary);
            color: white;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            text-align: center;
            gap: 0.5rem;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }

        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: white;
            box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
        }

        .btn-accent {
            background: var(--accent);
        }

        .btn-accent:hover {
            background: #e51779;
            box-shadow: 0 5px 15px rgba(247, 37, 133, 0.3);
        }

        /* Header */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            /*backdrop-filter: blur(10px);*/
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        body.dark-mode header {
            background: rgba(30, 30, 30, 0.95);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }

        header.scrolled {
            padding: 0.5rem 0;
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem 0;
            background: var(--glass-bg-light);
            -webkit-backdrop-filter: var(--glass-blur);
            backdrop-filter: var(--glass-blur);
            border-bottom: 1px solid var(--glass-border-light);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        body.dark-mode .logo {
            color: var(--dark-text);
        }

        .logo span {
            color: var(--primary);
        }

        .logo-icon {
            color: var(--primary);
            font-size: 2rem;
        }

        .nav-links {
            display: flex;
            list-style: none;
            align-items: center;
            gap: 1.5rem;
        }

        .nav-links a {
            color: var(--dark);
            font-weight: 600;
            position: relative;
            padding: 0.5rem 0;
            font-size: 0.95rem;
        }

        body.dark-mode .nav-links a {
            color: var(--dark-text);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            transition: width 0.3s ease;
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .hamburger {
            display: none;
            cursor: pointer;
            color: var(--dark);
            font-size: 1.5rem;
        }

        body.dark-mode .hamburger {
            color: var(--dark-text);
        }

        .theme-toggle {
            background: none;
            border: none;
            color: var(--dark);
            font-size: 1.2rem;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--light-gray);
        }

        body.dark-mode .theme-toggle {
            color: var(--dark-text);
            background: var(--dark-card);
        }

        .theme-toggle:hover {
            transform: rotate(30deg);
            background: var(--primary-light);
            color: var(--primary);
        }

        body.dark-mode .theme-toggle:hover {
            background: var(--dark-card);
        }

        /* Hero Section */
        #hero {
            height: 100vh;
            padding-top: 15rem;
            min-height: 800px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.1);
            -webkit-backdrop-filter: var(--glass-blur);
            backdrop-filter: var(--glass-blur);
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(67, 97, 238, 0.05) 0%, rgba(248, 249, 250, 0) 100%);
            z-index: -1;
        }

        body.dark-mode .hero-bg {
            background: linear-gradient(135deg, rgba(67, 97, 238, 0.05) 0%, rgba(18, 18, 18, 0) 100%);
        }

        .hero-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 3rem;
        }

        .hero-text {
            flex: 1;
        }

        .hero-image {
            flex: 1;
            position: relative;
            text-align: center;
        }

        .hero-image img {
            max-width: 80%;
            border-radius: 20px;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
            border: 8px solid white;
            transform: perspective(1000px) rotateY(-10deg);
            transition: transform 0.5s ease;
        }

        body.dark-mode .hero-image img {
            border-color: var(--dark-card);
        }

        .hero-image:hover img {
            transform: perspective(1000px) rotateY(0deg);
        }

        .tagline {
            font-size: 1.5rem;
            margin: 1.5rem 0 2rem;
            color: var(--gray);
            font-weight: 400;
            max-width: 600px;
        }

        .cta-buttons {
            display: flex;
            gap: 1rem;
            margin-top: 2.5rem;
            flex-wrap: wrap;
        }

        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 3rem;
        }

        .social-link {
            width: 45px;
            height: 45px;
            background: var(--light-gray);
            color: var(--dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            font-size: 1.1rem;
        }

        body.dark-mode .social-link {
            background: var(--dark-card);
            color: var(--dark-text);
        }

        .social-link:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
        }

        /* About Section */
        #about {
            background-color: white;
            position: relative;
        }

        body.dark-mode #about {
            background-color: var(--dark-card);
        }

        .about-content {
            display: flex;
            align-items: center;
            gap: 4rem;
            background: var(--glass-bg-light);
            -webkit-backdrop-filter: var(--glass-blur);
            backdrop-filter: var(--glass-blur);
            border-radius: 20px;
            padding: 3rem;
            border: 1px solid var(--glass-border-light);
            box-shadow: var(--glass-shadow-light);
        }

        body.dark-mode .about-content {
            background: var(--glass-bg-dark);
            border-color: var(--glass-border-dark);
            box-shadow: var(--glass-shadow-dark);
        }

        .about-image {
            flex: 1;
            position: relative;
            text-align: center;
        }

        .about-image img {
            max-width: 100%;
            border-radius: 20px;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
            border: 8px solid white;
        }

        body.dark-mode .about-image img {
            border-color: var(--dark-card);
        }

        .about-text {
            flex: 1;
        }

        .about-text p {
            margin-bottom: 1.2rem;
            position: relative;
            padding-left: 1.5rem;
        }

        .about-text p::before {
            content: '▹';
            position: absolute;
            left: 0;
            color: var(--primary);
        }

        .skills-highlight {
            margin-top: 2rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }

        .skill-tag {
            background: var(--primary-light);
            color: var(--primary);
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
        }

        body.dark-mode .skill-tag {
            background: rgba(67, 97, 238, 0.2);
        }

        /* Skills Section */
        #skills {
            background: linear-gradient(135deg, rgba(67, 97, 238, 0.03) 0%, rgba(248, 249, 250, 0) 100%);
            position: relative;
        }

        body.dark-mode #skills {
            background: linear-gradient(135deg, rgba(67, 97, 238, 0.05) 0%, rgba(18, 18, 18, 0) 100%);
        }

        .skills-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 2rem;
        }

        .skill-category {
            background: var(--glass-bg-light);
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: var(--glass-shadow-light);
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            border: 1px solid var(--glass-border-light);
            -webkit-backdrop-filter: var(--glass-blur);
            backdrop-filter: var(--glass-blur);
        }

        body.dark-mode .skill-category {
            background: var(--dark-card);
            border-color: var(--dark-border);
        }

        .skill-category:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .skill-category h3 {
            margin-bottom: 1.5rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .skill-category h3 i {
            font-size: 1.5rem;
        }

        .skill-list {
            list-style: none;
        }

        .skill-list li {
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .skill-list li::before {
            content: '';
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
        }

        .skill-progress {
            margin-top: 0.5rem;
            height: 6px;
            background: var(--light-gray);
            border-radius: 3px;
            overflow: hidden;
        }

        body.dark-mode .skill-progress {
            background: var(--dark-border);
        }

        .progress-bar {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 3px;
        }

        /* Projects Section */
        #projects {
            background-color: white;
            position: relative;
        }

        body.dark-mode #projects {
            background-color: var(--dark-card);
        }

        .projects-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 2.5rem;
        }

        .project-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: 15px;
            overflow: hidden;
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            box-shadow: var(--glass-shadow-light);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        body.dark-mode .project-card {
            background: var(--glass-bg-dark);
            border-color: var(--glass-border-dark);
            box-shadow: var(--glass-shadow-dark);
        }

        .project-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }

        .project-image {
            height: 220px;
            overflow: hidden;
            position: relative;
        }

        .project-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.8s ease;
        }

        .project-card:hover .project-image img {
            transform: scale(1.1);
        }

        .project-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--accent);
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .project-info {
            padding: 2rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .project-info h3 {
            margin-bottom: 1rem;
        }

        .project-description {
            margin-bottom: 1.5rem;
            flex: 1;
        }

        .project-tech {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin: 1.5rem 0;
        }

        .tech-tag {
            background: var(--primary-light);
            color: var(--primary);
            padding: 0.4rem 1rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        body.dark-mode .tech-tag {
            background: rgba(67, 97, 238, 0.2);
        }

        .project-links {
            display: flex;
            gap: 1rem;
            margin-top: auto;
        }

        /* Testimonials Section */
        #testimonials {
            background: linear-gradient(135deg, rgba(67, 97, 238, 0.03) 0%, rgba(248, 249, 250, 0) 100%);
            position: relative;
        }

        body.dark-mode #testimonials {
            background: linear-gradient(135deg, rgba(67, 97, 238, 0.05) 0%, rgba(18, 18, 18, 0) 100%);
        }

        .testimonials-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
            gap: 2.5rem;
        }

        .testimonial-card {
            background: var(--glass-bg-light);
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: var(--glass-shadow-light);
            position: relative;
            border: 1px solid var(--glass-border-light);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
        }

        body.dark-mode .testimonial-card {
            background: var(--glass-bg-dark);
            border-color: var(--glass-border-dark);
            box-shadow: var(--glass-shadow-dark);
        }

        body.dark-mode .testimonial-card {
            background: var(--dark-card);
            border-color: var(--dark-border);
        }

        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 10px;
            left: 20px;
            font-size: 5rem;
            color: rgba(67, 97, 238, 0.1);
            font-family: Georgia, serif;
            line-height: 1;
            z-index: 0;
        }

        body.dark-mode .testimonial-card::before {
            color: rgba(67, 97, 238, 0.05);
        }

        .testimonial-content {
            position: relative;
            z-index: 1;
            margin-bottom: 2rem;
            font-style: italic;
            color: var(--gray);
            font-size: 1.1rem;
            line-height: 1.8;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        .author-image {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            overflow: hidden;
            flex-shrink: 0;
            border: 3px solid var(--primary-light);
        }

        body.dark-mode .author-image {
            border-color: rgba(67, 97, 238, 0.3);
        }

        .author-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .author-info h4 {
            margin-bottom: 0.3rem;
            color: var(--dark);
        }

        body.dark-mode .author-info h4 {
            color: var(--dark-text);
        }

        .author-info p {
            margin-bottom: 0;
            color: var(--gray);
            font-size: 0.95rem;
        }

        .rating {
            color: var(--accent);
            margin-top: 0.3rem;
        }

        /* Blog Section */
        #blog {
            background-color: white;
            position: relative;
        }

        body.dark-mode #blog {
            background-color: var(--dark-card);
        }

        .blog-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 2.5rem;
        }

        .blog-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: 15px;
            overflow: hidden;
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            box-shadow: var(--glass-shadow-light);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        body.dark-mode .blog-card {
            background: var(--glass-bg-dark);
            border-color: var(--glass-border-dark);
            box-shadow: var(--glass-shadow-dark);
        }

        .blog-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }

        .blog-image {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .blog-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.8s ease;
        }

        .blog-card:hover .blog-image img {
            transform: scale(1.1);
        }

        .blog-badge {
            position: absolute;
            top: 15px;
            left: 15px;
            background: var(--accent);
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .blog-info {
            padding: 2rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .blog-info h3 {
            margin-bottom: 1rem;
        }

        .blog-excerpt {
            margin-bottom: 1.5rem;
            flex: 1;
        }

        .blog-meta {
            display: flex;
            justify-content: space-between;
            margin-bottom: 1.5rem;
            font-size: 0.9rem;
            color: var(--gray);
        }

        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            margin-top: 1rem;
            font-weight: 600;
            color: var(--primary);
            transition: all 0.3s ease;
        }

        .read-more:hover {
            color: var(--secondary);
            gap: 0.8rem;
        }

        /* Contact Section */
        #contact {
            background: linear-gradient(135deg, rgba(67, 97, 238, 0.03) 0%, rgba(248, 249, 250, 0) 100%);
            position: relative;
        }

        body.dark-mode #contact {
            background: linear-gradient(135deg, rgba(67, 97, 238, 0.05) 0%, rgba(18, 18, 18, 0) 100%);
        }

        .contact-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 4rem;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 1.5rem;
        }

        .contact-icon {
            width: 60px;
            height: 60px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
            transition: all 0.3s ease;
        }

        .contact-icon:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(67, 97, 238, 0.3);
        }

        .contact-text h3 {
            margin-bottom: 0.5rem;
            font-size: 1.3rem;
        }

        .contact-social {
            margin-top: 2rem;
        }

        .contact-social .social-links {
            margin-top: 1.5rem;
        }

        .contact-form {
            background: var(--glass-bg-light);
            padding: 3rem;
            border-radius: 15px;
            box-shadow: var(--glass-shadow-light);
            border: 1px solid var(--glass-border-light);
            -webkit-backdrop-filter: var(--glass-blur);
            backdrop-filter: var(--glass-blur);
        }

        body.dark-mode .contact-form {
            background: var(--glass-bg-dark);
            border-color: var(--glass-border-dark);
            box-shadow: var(--glass-shadow-dark);
        }

        body.dark-mode .contact-form {
            background: var(--dark-card);
            border-color: var(--dark-border);
        }

        .form-group {
            margin-bottom: 1.8rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.8rem;
            font-weight: 600;
            color: var(--dark);
        }

        body.dark-mode .form-group label {
            color: var(--dark-text);
        }

        .form-control {
            width: 100%;
            padding: 1rem 1.2rem;
            border: 1px solid var(--light-gray);
            border-radius: 8px;
            font-size: 1rem;
            transition: all 0.3s ease;
            background-color: var(--light);
            color: var(--dark);
        }

        body.dark-mode .form-control {
            background-color: var(--dark-bg);
            border-color: var(--dark-border);
            color: var(--dark-text);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
        }

        textarea.form-control {
            min-height: 180px;
            resize: vertical;
        }

        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: 4rem 0 2rem;
            text-align: center;
        }

        body.dark-mode footer {
            background: #000;
        }

        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2rem;
        }

        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-links {
            display: flex;
            gap: 2rem;
            list-style: none;
            flex-wrap: wrap;
            justify-content: center;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.8);
            transition: all 0.3s ease;
        }

        .footer-links a:hover {
            color: white;
        }

        .footer-social {
            margin-top: 1rem;
        }

        .copyright {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            margin-top: 3rem;
        }

        /* Back to Top Button */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 999;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }

        /* Download Progress Bar */
        .download-progress {
            display: none;
            align-items: center;
            width: 100%;
            margin-top: 1rem;
            gap: 1rem;
        }

        .progress-bar {
            flex: 1;
            height: 10px;
            background-color: var(--light-gray);
            border-radius: 5px;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            width: 0%;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 5px;
            transition: width 0.1s ease-out;
        }

        .progress-text {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--dark);
            min-width: 40px;
            text-align: right;
        }

        /* Dark mode styles for progress bar */
        body.dark-mode .progress-bar {
            background-color: rgba(255, 255, 255, 0.1);
        }

        body.dark-mode .progress-text {
            color: var(--light);
        }

        .back-to-top:hover {
            background: var(--primary-dark);
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(67, 97, 238, 0.3);
        }

        /* Responsive Styles */
        @media (max-width: 1200px) {
            h1 {
                font-size: 2.8rem;
            }
            
            h2 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 992px) {
            .hero-content, .about-content {
                flex-direction: column;
            }

            .hero-text, .about-text {
                padding-right: 0;
                margin-bottom: 3rem;
                text-align: center;
            }

            .hero-text {
                order: 1;
            }

            .hero-image {
                order: 2;
            }

            .cta-buttons {
                justify-content: center;
            }

            .hero-image, .about-image {
                margin-top: 2rem;
            }

            .testimonials-container, .blog-container {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: rgba(255, 255, 255, 0.98);
               /* backdrop-filter: blur(10px);*/
                flex-direction: column;
                align-items: center;
                padding: 3rem 0;
                transition: all 0.5s ease;
                z-index: 999;
                gap: 2rem;
            }

            body.dark-mode .nav-links {
                background: rgba(30, 30, 30, 0.98);
            }

            .nav-links.active {
                left: 0;
            }

            .nav-links li {
                margin: 0;
            }

            .hamburger {
                display: block;
                z-index: 1000;
            }

            h1 {
                font-size: 2.4rem;
            }

            h2 {
                font-size: 2rem;
            }

            section {
                padding: 4rem 0;
            }

            .contact-container {
                grid-template-columns: 1fr;
                gap: 3rem;
            }

            .contact-form {
                padding: 2rem;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding: 0 1.5rem;
            }

            h1 {
                font-size: 2rem;
            }

            h2 {
                font-size: 1.8rem;
                margin-bottom: 3rem;
            }

            .cta-buttons {
                flex-direction: column;
                gap: 1rem;
            }

            .btn {
                width: 100%;
            }

            .projects-container, .blog-container {
                grid-template-columns: 1fr;
            }

            .footer-links {
                flex-direction: column;
                gap: 1rem;
            }
        }