@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Rajdhani:wght@300;400;600;700&display=swap');
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            cursor: cell;
        }
        
        :root {
            --bg-dark: #0a0a0f;
            --bg-secondary: #121218;
            --bg-card: #1a1a24;
            --neon-blue: #00f3ff;
            --neon-purple: #b537ff;
            --neon-pink: #ff006e;
            --text-primary: #e8e8e8;
            --text-secondary: #a0a0a0;
            --accent: #00f3ff;
            --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        
        [data-theme="light"] {
            --bg-dark: #f5f5f5;
            --bg-secondary: #ffffff;
            --bg-card: #ffffff;
            --text-primary: #1a1a1a;
            --text-secondary: #666666;
            --neon-blue: #0099cc;
            --neon-purple: #9933ff;
            --accent: #0099cc;
        }
        
        body {
            font-family: 'Rajdhani', sans-serif;
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            transition: background 0.3s ease;
        }
        
        h1, h2, h3 {
            font-family: 'Orbitron', sans-serif;
        }
        
        /* Header */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(10, 10, 15, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(0, 243, 255, 0.1);
            transition: all 0.3s ease;
        }
        
        [data-theme="light"] header {
            background: rgba(255, 255, 255, 0.95);
            border-bottom: 1px solid rgba(0, 153, 204, 0.2);
        }
        
        header.scrolled {
            padding: 0.5rem 0;
            box-shadow: 0 5px 30px rgba(0, 243, 255, 0.3);
        }
        
        nav {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 2rem;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--neon-blue);
            text-shadow: 0 0 20px var(--neon-blue);
            letter-spacing: 2px;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
            align-items: center;
        }
        
        .nav-links a {
            color: var(--text-primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--neon-blue);
            transition: width 0.3s ease;
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        .theme-toggle {
            background: none;
            border: 2px solid var(--neon-blue);
            color: var(--neon-blue);
            padding: 0.5rem 1rem;
            border-radius: 50px;
            cursor: pointer;
            font-size: 1.2rem;
            transition: all 0.3s ease;
        }
        
        .theme-toggle:hover {
            background: var(--neon-blue);
            color: var(--bg-dark);
            box-shadow: 0 0 20px var(--neon-blue);
        }
        
        .mobile-menu {
            display: none;
            font-size: 1.5rem;
            color: var(--neon-blue);
            cursor: pointer;
        }
        
        /* Hero Section */
        #hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            padding: 2rem;
        }
        
        .particles {
            position: absolute;
            width: 100%;
            height: 100%;
            z-index: 0;
        }
        
        .particle {
            position: absolute;
            background: var(--neon-blue);
            border-radius: 50%;
            animation: float 20s infinite;
        }
        
        @keyframes float {
            0%, 100% { transform: translateY(0) translateX(0); opacity: 0; }
            10% { opacity: 0.5; }
            90% { opacity: 0.5; }
            100% { transform: translateY(-100vh) translateX(100px); opacity: 0; }
        }
        
        .hero-content {
            max-width: 1400px;
            display: flex;
            align-items: center;
            gap: 4rem;
            z-index: 1;
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .hero-text {
            flex: 1;
            min-width: 300px;
        }
        
        .hero-text h1 {
            font-size: 4rem;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: glow 2s ease-in-out infinite alternate;
        }
        
        @keyframes glow {
            from { filter: drop-shadow(0 0 5px var(--neon-blue)); }
            to { filter: drop-shadow(0 0 20px var(--neon-purple)); }
        }
        
        .hero-text h2 {
            font-size: 1.8rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            font-weight: 400;
        }
        
        .hero-text p {
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        
        .hero-buttons {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        
        .btn {
            padding: 1rem 2.5rem;
            border: none;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
            color: white;
            box-shadow: 0 5px 20px rgba(0, 243, 255, 0.3);
        }
        
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 40px rgba(0, 243, 255, 0.5);
        }
        
        .btn-secondary {
            background: transparent;
            border: 2px solid var(--neon-blue);
            color: var(--neon-blue);
        }
        
        .btn-secondary:hover {
            background: var(--neon-blue);
            color: var(--bg-dark);
        }
        
        .hero-image {
            flex: 1;
            display: flex;
            justify-content: center;
            align-items: center;
            min-width: 300px;
        }
        
        .profile-pic {
            width: 350px;
            height: 350px;
            border-radius: 50%;
            border: 5px solid var(--neon-blue);
            box-shadow: 0 0 50px var(--neon-blue);
            animation: pulse 3s ease-in-out infinite;
            object-fit: cover;
            background: var(--bg-card);
        }
        
        @keyframes pulse {
            0%, 100% { box-shadow: 0 0 30px var(--neon-blue); }
            50% { box-shadow: 0 0 60px var(--neon-purple); }
        }
        
        /* Section Styles */
        section {
            max-width: 1400px;
            margin: 0 auto;
            padding: 6rem 2rem;
        }
        
        .section-title {
            font-size: 3rem;
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
            color: var(--text-primary);
        }
        
        .section-title::after {
            content: '';
            display: block;
            width: 100px;
            height: 4px;
            background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
            margin: 1rem auto;
            border-radius: 2px;
        }
        
        /* About Section */
        #about {
            background: var(--bg-secondary);
        }
        
        .about-content {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 4rem;
            align-items: start;
        }
        
        .about-image {
            position: relative;
        }
        
        .about-image img {
            width: 100%;
            border-radius: 20px;
            border: 3px solid var(--neon-blue);
            box-shadow: 0 10px 40px rgba(0, 243, 255, 0.2);
        }
        
        .about-text h3 {
            font-size: 2rem;
            margin-bottom: 1.5rem;
            color: var(--neon-blue);
        }
        
        .about-text p {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        
        .about-info {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            margin: 2rem 0;
        }
        
        .info-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem;
            background: var(--bg-card);
            border-radius: 10px;
            border-left: 3px solid var(--neon-blue);
        }
        
        .info-item i {
            font-size: 1.5rem;
            color: var(--neon-blue);
        }
        
        .info-item strong {
            color: var(--text-primary);
        }
        
        .info-item span {
            color: var(--text-secondary);
        }
        
        /* Skills Section */
        .skills-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .skill-category {
            background: var(--bg-card);
            padding: 2rem;
            border-radius: 20px;
            border: 1px solid rgba(0, 243, 255, 0.1);
            transition: all 0.3s ease;
        }
        
        .skill-category:hover {
            border-color: var(--neon-blue);
            box-shadow: 0 10px 40px rgba(0, 243, 255, 0.2);
            transform: translateY(-5px);
        }
        
        .skill-category h3 {
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
            color: var(--neon-blue);
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        
        .skill-category h3 i {
            font-size: 2rem;
        }
        
        .skill-item {
            margin-bottom: 1.5rem;
        }
        
        .skill-name {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        
        .skill-bar {
            height: 10px;
            background: rgba(0, 243, 255, 0.1);
            border-radius: 10px;
            overflow: hidden;
        }
        
        .skill-progress {
            height: 100%;
            background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
            border-radius: 10px;
            transition: width 1s ease;
            box-shadow: 0 0 10px var(--neon-blue);
        }
        
        .skill-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        
        .skill-tag {
            padding: 0.5rem 1rem;
            background: rgba(0, 243, 255, 0.1);
            border: 1px solid var(--neon-blue);
            border-radius: 20px;
            font-size: 0.9rem;
            color: var(--text-primary);
            transition: all 0.3s ease;
        }
        
        .skill-tag:hover {
            background: var(--neon-blue);
            color: var(--bg-dark);
            transform: scale(1.05);
        }
        
        /* Projects Section */
        #projects {
            background: var(--bg-secondary);
        }
        
        .project-filters {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 3rem;
            flex-wrap: wrap;
        }
        
        .filter-btn {
            padding: 0.8rem 1.5rem;
            background: var(--bg-card);
            border: 2px solid var(--neon-blue);
            color: var(--text-primary);
            border-radius: 30px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: 600;
        }
        
        .filter-btn.active,
        .filter-btn:hover {
            background: var(--neon-blue);
            color: var(--bg-dark);
            box-shadow: 0 5px 20px rgba(0, 243, 255, 0.3);
        }
        
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2.5rem;
        }
        
        .project-card {
            background: var(--bg-card);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid rgba(0, 243, 255, 0.1);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .project-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 60px rgba(0, 243, 255, 0.3);
            border-color: var(--neon-blue);
        }
        
        .project-image {
            width: 100%;
            height: 250px;
            background: linear-gradient(135deg, rgba(0, 243, 255, 0.2), rgba(181, 55, 255, 0.2));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 4rem;
            color: var(--neon-blue);
            position: relative;
            overflow: hidden;
        }
        
        .project-image::before {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent, rgba(0, 243, 255, 0.3), transparent);
            transform: translateX(-100%);
            transition: transform 0.6s;
        }
        
        .project-card:hover .project-image::before {
            transform: translateX(100%);
        }
        
        .project-info {
            padding: 2rem;
        }
        
        .project-info h3 {
            font-size: 1.8rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        
        .project-info p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }
        
        .project-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }
        
        .project-tag {
            padding: 0.4rem 1rem;
            background: rgba(0, 243, 255, 0.1);
            border-radius: 15px;
            font-size: 0.85rem;
            color: var(--neon-blue);
        }
        
        .project-links {
            display: flex;
            gap: 1rem;
        }
        
        .project-links a {
            flex: 1;
            padding: 0.8rem;
            text-align: center;
            border-radius: 10px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        .link-demo {
            background: var(--neon-blue);
            color: var(--bg-dark);
        }
        
        .link-demo:hover {
            box-shadow: 0 5px 20px rgba(0, 243, 255, 0.5);
        }
        
        .link-code {
            background: transparent;
            border: 2px solid var(--neon-blue);
            color: var(--neon-blue);
        }
        
        .link-code:hover {
            background: var(--neon-blue);
            color: var(--bg-dark);
        }
        
        /* Experience Section */
        .timeline {
            position: relative;
            padding: 2rem 0;
        }
        
        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--neon-blue), var(--neon-purple));
        }
        
        .timeline-item {
            display: flex;
            margin-bottom: 4rem;
            position: relative;
        }
        
        .timeline-item:nth-child(odd) {
            flex-direction: row-reverse;
        }
        
        .timeline-content {
            flex: 1;
            padding: 2rem;
            background: var(--bg-card);
            border-radius: 20px;
            border: 1px solid rgba(0, 243, 255, 0.1);
            margin: 0 2rem;
            transition: all 0.3s ease;
        }
        
        .timeline-content:hover {
            border-color: var(--neon-blue);
            box-shadow: 0 10px 40px rgba(0, 243, 255, 0.2);
            transform: translateY(-5px);
        }
        
        .timeline-dot {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 20px;
            background: var(--neon-blue);
            border-radius: 50%;
            box-shadow: 0 0 20px var(--neon-blue);
        }
        
        .timeline-content h3 {
            font-size: 1.8rem;
            color: var(--neon-blue);
            margin-bottom: 0.5rem;
        }
        
        .timeline-content .company {
            font-size: 1.3rem;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        
        .timeline-content .period {
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }
        
        .timeline-content p {
            color: var(--text-secondary);
            line-height: 1.6;
        }
        
        /* Education Section */
        #education {
            background: var(--bg-secondary);
        }
        
        .education-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .education-card {
            background: var(--bg-card);
            padding: 2rem;
            border-radius: 20px;
            border: 1px solid rgba(0, 243, 255, 0.1);
            transition: all 0.3s ease;
            text-align: center;
        }
        
        .education-card:hover {
            border-color: var(--neon-blue);
            box-shadow: 0 10px 40px rgba(0, 243, 255, 0.2);
            transform: translateY(-5px);
        }
        
        .education-card i {
            font-size: 3rem;
            color: var(--neon-blue);
            margin-bottom: 1rem;
        }
        
        .education-card h3 {
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }
        
        .education-card .institution {
            color: var(--neon-blue);
            margin-bottom: 0.5rem;
        }
        
        .education-card .period {
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }
        
        /* Testimonials */
        .testimonials-slider {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }
        
        .testimonial-card {
            background: var(--bg-card);
            padding: 2rem;
            border-radius: 20px;
            border: 1px solid rgba(0, 243, 255, 0.1);
            transition: all 0.3s ease;
        }
        
        .testimonial-card:hover {
            border-color: var(--neon-blue);
            box-shadow: 0 10px 40px rgba(0, 243, 255, 0.2);
        }
        
        .testimonial-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        
        .testimonial-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            border: 2px solid var(--neon-blue);
            background: var(--bg-secondary);
        }
        
        .testimonial-info h4 {
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }
        
        .testimonial-info p {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        
        .testimonial-text {
            color: var(--text-secondary);
            line-height: 1.6;
            font-style: italic;
        }
        
        /* Blog Section */
        #blog {
            background: var(--bg-secondary);
        }
        
        .blog-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
        }
        
        .blog-card {
            background: var(--bg-card);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid rgba(0, 243, 255, 0.1);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .blog-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 40px rgba(0, 243, 255, 0.2);
            border-color: var(--neon-blue);
        }
        
        .blog-image {
            width: 100%;
            height: 200px;
            background: linear-gradient(135deg, rgba(0, 243, 255, 0.2), rgba(181, 55, 255, 0.2));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: var(--neon-blue);
        }
        
        .blog-content {
            padding: 1.5rem;
        }
        
        .blog-meta {
            display: flex;
            justify-content: space-between;
            margin-bottom: 1rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        
        .blog-content h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        
        .blog-content p {
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 1rem;
        }
        
        .blog-link {
            color: var(--neon-blue);
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        /* Contact Section */
        .contact-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
        }
        
        .contact-form {
            background: var(--bg-card);
            padding: 2.5rem;
            border-radius: 20px;
            border: 1px solid rgba(0, 243, 255, 0.1);
        }
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
            font-weight: 600;
        }
        
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 1rem;
            background: var(--bg-secondary);
            border: 2px solid rgba(0, 243, 255, 0.2);
            border-radius: 10px;
            color: var(--text-primary);
            font-family: 'Rajdhani', sans-serif;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--neon-blue);
            box-shadow: 0 0 20px rgba(0, 243, 255, 0.2);
        }
        
        .form-group textarea {
            resize: vertical;
            min-height: 150px;
        }
        
        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            padding: 1.5rem;
            background: var(--bg-card);
            border-radius: 15px;
            border: 1px solid rgba(0, 243, 255, 0.1);
            transition: all 0.3s ease;
        }
        
        .contact-item:hover {
            border-color: var(--neon-blue);
            transform: translateX(10px);
        }
        
        .contact-item i {
            font-size: 2rem;
            color: var(--neon-blue);
        }
        
        .contact-item-info h3 {
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }
        
        .contact-item-info p {
            color: var(--text-secondary);
        }
        
        .social-links {
            display: flex;
            gap: 1.5rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }
        
        .social-link {
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-card);
            border: 2px solid var(--neon-blue);
            border-radius: 50%;
            color: var(--neon-blue);
            font-size: 1.5rem;
            transition: all 0.3s ease;
            text-decoration: none;
        }
        
        .social-link:hover {
            background: var(--neon-blue);
            color: var(--bg-dark);
            box-shadow: 0 5px 20px rgba(0, 243, 255, 0.5);
            transform: translateY(-5px);
        }
        
        /* Footer */
        footer {
            background: var(--bg-secondary);
            padding: 3rem 2rem;
            text-align: center;
            border-top: 1px solid rgba(0, 243, 255, 0.1);
            position: relative;
            overflow: hidden;
        }
        
        footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--neon-blue), var(--neon-purple), transparent);
            animation: shimmer 3s infinite;
        }
        
        @keyframes shimmer {
            0% { transform: translateX(-100%); }
            100% { transform: translateX(100%); }
        }
        
        footer p {
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }
        
        footer a {
            color: var(--neon-blue);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        footer a:hover {
            text-shadow: 0 0 10px var(--neon-blue);
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .timeline::before {
                left: 30px;
            }
            
            .timeline-item,
            .timeline-item:nth-child(odd) {
                flex-direction: row;
            }
            
            .timeline-content {
                margin-left: 80px;
            }
            
            .timeline-dot {
                left: 30px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                left: -100%;
                top: 70px;
                flex-direction: column;
                background: var(--bg-secondary);
                width: 100%;
                text-align: center;
                transition: 0.3s;
                padding: 2rem 0;
                border-top: 1px solid rgba(0, 243, 255, 0.1);
            }
            
            .nav-links.active {
                left: 0;
            }
            
            .mobile-menu {
                display: block;
            }
            
            .hero-text h1 {
                font-size: 2.5rem;
            }
            
            .hero-text h2 {
                font-size: 1.3rem;
            }
            
            .about-content {
                grid-template-columns: 1fr;
            }
            
            .contact-container {
                grid-template-columns: 1fr;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .projects-grid {
                grid-template-columns: 1fr;
            }
        }
        
        /* Scroll reveal animation */
        .reveal {
            opacity: 0;
            transform: translateY(50px);
            transition: all 0.6s ease;
        }
        
        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }
        
        /* Loading animation */
        .loading {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--bg-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 9999;
            transition: opacity 0.5s ease;
        }
        
        .loading.hidden {
            opacity: 0;
            pointer-events: none;
        }
        
        .loader {
            width: 50px;
            height: 50px;
            border: 5px solid rgba(0, 243, 255, 0.1);
            border-top-color: var(--neon-blue);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
        /* --- Responsividade adicional (sem alterar conteúdo) --- */
        /* Elementos de mídia fluidos */
        img, video { max-width: 100%; height: auto; }
        
        /* Tipografia fluida */
        .hero-text h1 { font-size: clamp(2rem, 6vw, 4rem); }
        .hero-text h2 { font-size: clamp(1.1rem, 3.2vw, 1.8rem); }
        .section-title { font-size: clamp(1.8rem, 5vw, 3rem); }
        .about-text h3 { font-size: clamp(1.3rem, 4.2vw, 2rem); }
        
        /* Imagem do herói: manter sempre quadrada para ficar redonda */
        .profile-pic { width: 350px; height: 350px; display: block; }
        
        /* Ajustes gerais em telas médias */
        @media (max-width: 992px) {
            section { padding: 4rem 1.5rem; }
            .hero-content { gap: 2rem; }
            .project-image { height: 220px; }
            .profile-pic { width: clamp(260px, 42vw, 320px); height: clamp(260px, 42vw, 320px); }
        }
        
        /* Ajustes adicionais para <= 768px já existentes; complementos abaixo */
        @media (max-width: 768px) {
            section { padding: 3.5rem 1.25rem; }
            .hero-content { gap: 1.5rem; }
            .btn { padding: 0.85rem 1.6rem; font-size: 1rem; }
            .about-info { grid-template-columns: 1fr; }
            .project-image { height: 200px; }
            .timeline-content { margin: 0 0 0 70px; padding: 1.25rem; }
            .profile-pic { width: clamp(200px, 56vw, 280px); height: clamp(200px, 56vw, 280px); }
        }
        
        /* Ajustes finos para telas muito pequenas */
        @media (max-width: 480px) {
            section { padding: 3rem 1rem; }
            nav { padding: 0 1rem; }
            .hero-text p { font-size: 1rem; }
            .project-image { height: 180px; }
            .timeline::before { left: 24px; }
            .timeline-dot { left: 24px; width: 14px; height: 14px; }
            .timeline-content { margin-left: 60px; padding: 1rem; }
            .contact-item { gap: 1rem; padding: 1rem; }
            .social-link { width: 52px; height: 52px; }
            .profile-pic { width: clamp(160px, 62vw, 220px); height: clamp(160px, 62vw, 220px); }
        }