* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary: #0c0c1d;
            --secondary: #1a1a3d;
            --accent1: #00f7ff;
            --accent2: #6a00ff;
            --accent3: #ff00c8;
            --text: #e0e0ff;
        }

        html, body {
            overflow-x: hidden;
            max-width: 100%;
        }

        body {
            background: radial-gradient(circle at center, #090917, #000000);
            color: var(--text);
            font-family: 'Exo 2', sans-serif;
            line-height: 1.8;
            min-height: 100vh;
            position: relative;
            scroll-behavior: smooth;
        }

        /* Stars Background */
        .stars {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            pointer-events: none;
        }

        .star {
            position: absolute;
            background-color: white;
            border-radius: 50%;
            animation: twinkle var(--duration, 5s) infinite var(--delay, 0s);
        }

        @keyframes twinkle {
            0%, 100% { opacity: 0.2; }
            50% { opacity: 1; }
        }

        /* Nebula Background */
        .nebula {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -2;
            opacity: 0.3;
            background: radial-gradient(ellipse at center, 
                rgba(106, 0, 255, 0.2) 0%,
                rgba(0, 247, 255, 0.1) 40%,
                rgba(255, 0, 200, 0.05) 70%,
                transparent 90%);
            pointer-events: none;
        }

        /* Planets */
        .planet {
            position: fixed;
            border-radius: 50%;
            box-shadow: 0 0 50px rgba(106, 0, 255, 0.5);
            z-index: -1;
            pointer-events: none;
            will-change: transform;
        }
        
        .planet-1 {
            width: 200px;
            height: 200px;
            background: radial-gradient(circle at 30% 30%, #5a2a82, #1e0a35);
            bottom: -100px;
            left: 10%;
            animation: rotate 50s linear infinite;
        }
        
        .planet-1::after {
            content: '';
            position: absolute;
            width: 250px;
            height: 10px;
            background: rgba(90, 42, 130, 0.3);
            border-radius: 50%;
            bottom: 50px;
            left: -25px;
            box-shadow: 0 0 20px rgba(106, 0, 255, 0.3);
        }
        
        .planet-2 {
            width: 150px;
            height: 150px;
            background: radial-gradient(circle at 40% 40%, #ff7b00, #8a3a00);
            top: 20%;
            right: 8%;
            animation: rotate 70s linear infinite reverse;
        }
        
        .planet-3 {
            width: 100px;
            height: 100px;
            background: radial-gradient(circle at 30% 30%, #00c3ff, #00628a);
            top: 60%;
            left: 5%;
            animation: rotate 40s linear infinite;
        }
        
        .planet-4 {
            width: 80px;
            height: 80px;
            background: radial-gradient(circle at 40% 40%, #00ff62, #008a3a);
            bottom: 15%;
            right: 15%;
            animation: rotate 60s linear infinite reverse;
        }

        @keyframes rotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Header & Navigation */
        header {
            padding: 1.5rem 5%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: fixed;
            width: 100%;
            z-index: 100;
            backdrop-filter: blur(10px);
            background: rgba(10, 10, 30, 0.7);
            border-bottom: 1px solid rgba(106, 0, 255, 0.3);
            transition: all 0.3s ease;
        }

        .logo {
            font-family: 'Orbitron', sans-serif;
            font-weight: 900;
            font-size: 1.8rem;
            background: linear-gradient(90deg, var(--accent1), var(--accent2));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 2px;
        }

        .logo span {
            color: var(--accent1);
        }

        nav ul {
            display: flex;
            list-style: none;
            gap: 2.5rem;
        }

        nav a {
            color: var(--text);
            text-decoration: none;
            font-family: 'Exo 2', sans-serif;
            font-weight: 400;
            font-size: 1.1rem;
            position: relative;
            padding: 0.5rem 0;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        nav a:hover {
            color: var(--accent1);
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent1);
            transition: width 0.3s ease;
        }

        nav a:hover::after {
            width: 100%;
        }

        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 1.8rem;
            cursor: pointer;
            z-index: 101;
        }

        .mobile-nav {
            position: fixed;
            top: 0;
            right: -100%;
            width: 70%;
            height: 100vh;
            background: rgba(10, 10, 30, 0.95);
            backdrop-filter: blur(15px);
            z-index: 99;
            transition: right 0.4s ease;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            border-left: 1px solid rgba(106, 0, 255, 0.3);
        }

        .mobile-nav.active {
            right: 0;
        }

        .mobile-nav ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 2.5rem;
            text-align: center;
        }

        .mobile-nav a {
            color: var(--text);
            text-decoration: none;
            font-family: 'Exo 2', sans-serif;
            font-size: 1.5rem;
            transition: all 0.3s ease;
            text-transform: uppercase;
        }

        .mobile-nav a:hover {
            color: var(--accent1);
        }

        /* Hero Section */
        .hero {
            height: 140vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 0 10%;
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            max-width: 900px;
            z-index: 10;
            position: relative;
            padding: 0 15px;
        }

        .hero h1 {
            font-family: 'Orbitron', sans-serif;
            font-size: 2.5rem;
            font-weight: 900;
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            background: linear-gradient(90deg, var(--accent1), var(--accent3));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 5px;
            line-height: 1.1;
            text-shadow: 0 0 20px rgba(106, 0, 255, 0.5);
        }

        .hero h1 span {
            display: block;
            font-size: 2rem;
            margin-top: 0.5rem;
            letter-spacing: 3px;
        }

        .hero p {
            font-size: 1.5rem;
            margin-bottom: 3rem;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            font-weight: 300;
            opacity: 0.9;
        }

        .cta-button {
            display: inline-block;
            padding: 1.2rem 3rem;
            background: linear-gradient(90deg, var(--accent2), var(--accent3));
            color: white;
            font-family: 'Orbitron', sans-serif;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            transition: all 0.4s ease;
            box-shadow: 0 0 25px rgba(106, 0, 255, 0.7);
            border: none;
            cursor: pointer;
            font-size: 12px;
            position: relative;
            overflow: hidden;
            z-index: 1;
            will-change: transform;
        }

        .cta-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: 0.5s;
            z-index: -1;
        }

        .cta-button:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 30px rgba(106, 0, 255, 0.9);
        }

        .cta-button:hover::before {
            left: 100%;
        }

        .ai-orbit {
            position: absolute;
            width: 400px;
            height: 400px;
            border: 2px solid rgba(0, 247, 255, 0.3);
            border-radius: 50%;
            animation: orbit 25s linear infinite;
            top: 50%;
            left: 10%;
            box-shadow: 0 0 50px rgba(0, 247, 255, 0.1);
            pointer-events: none;
            will-change: transform;
        }

        .ai-orbit::before {
            content: '🤖';
            position: absolute;
            top: -25px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 3rem;
            animation: pulse 3s infinite;
            filter: drop-shadow(0 0 10px var(--accent1));
        }

        .satellite {
            position: absolute;
            width: 70px;
            height: 25px;
            background: var(--accent1);
            border-radius: 15px;
            top: 50%;
            right: 15%;
            animation: float 10s ease-in-out infinite;
            box-shadow: 0 0 20px var(--accent1);
            pointer-events: none;
            will-change: transform;
        }

        .satellite::before {
            content: '';
            position: absolute;
            width: 15px;
            height: 15px;
            background: var(--accent3);
            border-radius: 50%;
            top: -20px;
            left: 27px;
        }

        @keyframes orbit {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        @keyframes pulse {
            0%, 100% { transform: translateX(-50%) scale(1); }
            50% { transform: translateX(-50%) scale(1.3); }
        }

        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-60px); }
        }

        /* Sections */
        section {
            padding: 10rem 10%;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .section-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 3.5rem;
            margin-bottom: 5rem;
            text-align: center;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
            text-transform: uppercase;
            letter-spacing: 4px;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -20px;
            left: 10%;
            width: 80%;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--accent1), transparent);
            box-shadow: 0 0 15px var(--accent1);
        }

        /* About Section */
        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 5rem;
            align-items: center;
        }

        .about-text h3 {
            font-size: 2.5rem;
            margin-bottom: 2rem;
            color: var(--accent1);
            font-family: 'Orbitron', sans-serif;
        }

        .about-text p {
            margin-bottom: 2rem;
            font-size: 1.3rem;
            line-height: 1.8;
        }

        .tech-stack {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .tech-item {
            padding: 0.8rem 1.8rem;
            background: rgba(106, 0, 255, 0.2);
            border-radius: 30px;
            border: 1px solid var(--accent2);
            font-size: 1.1rem;
            transition: all 0.3s ease;
            will-change: transform;
        }

        .tech-item:hover {
            background: rgba(0, 247, 255, 0.2);
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 247, 255, 0.3);
        }

        .about-visual {
            position: relative;
            height: 500px;
            perspective: 1000px;
        }

        .cube {
            width: 250px;
            height: 250px;
            position: relative;
            transform-style: preserve-3d;
            animation: rotateCube 25s infinite linear;
            margin: 0 auto;
            will-change: transform;
        }

        .face {
            position: absolute;
            width: 250px;
            height: 250px;
            background: rgba(0, 247, 255, 0.05);
            border: 3px solid var(--accent1);
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 2.5rem;
            backdrop-filter: blur(5px);
            box-shadow: inset 0 0 50px rgba(0, 247, 255, 0.1), 0 0 30px rgba(0, 247, 255, 0.2);
        }

        .face.front { transform: translateZ(125px); }
        .face.back { transform: rotateY(180deg) translateZ(125px); }
        .face.right { transform: rotateY(90deg) translateZ(125px); }
        .face.left { transform: rotateY(-90deg) translateZ(125px); }
        .face.top { transform: rotateX(90deg) translateZ(125px); }
        .face.bottom { transform: rotateX(-90deg) translateZ(125px); }

        @keyframes rotateCube {
            0% { transform: rotateX(0) rotateY(0) rotateZ(0); }
            100% { transform: rotateX(360deg) rotateY(360deg) rotateZ(360deg); }
        }

        /* Projects Section */
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(450px, 1fr));
            gap: 4rem;
        }

        .project-card {
            background: rgba(20, 20, 50, 0.4);
            border-radius: 20px;
            overflow: hidden;
            transition: all 0.5s ease;
            border: 1px solid rgba(106, 0, 255, 0.3);
            position: relative;
            backdrop-filter: blur(5px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            will-change: transform;
        }

        .project-card:hover {
            transform: translateY(-20px);
            box-shadow: 0 20px 50px rgba(106, 0, 255, 0.5);
            border-color: var(--accent1);
        }

        .project-image {
            height: 250px;
            background: linear-gradient(45deg, var(--accent2), var(--accent3));
            position: relative;
            overflow: hidden;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .project-image i {
            font-size: 5rem;
            color: rgba(255, 255, 255, 0.8);
        }

        .project-content {
            padding: 2.5rem;
        }

        .project-content h3 {
            font-size: 2rem;
            margin-bottom: 1.5rem;
            color: var(--accent1);
            font-family: 'Orbitron', sans-serif;
        }

        .project-content p {
            margin-bottom: 2rem;
            font-size: 1.2rem;
            line-height: 1.7;
        }

        .project-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .tag {
            padding: 0.5rem 1.2rem;
            background: rgba(0, 247, 255, 0.1);
            border-radius: 20px;
            font-size: 1rem;
            border: 1px solid rgba(0, 247, 255, 0.3);
        }

        /* Journey Section */
        .journey-container {
            display: flex;
            flex-direction: column;
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
        }

        .journey-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, var(--accent1), var(--accent3));
            border-radius: 2px;
            box-shadow: 0 0 20px var(--accent1);
        }

        .journey-item {
            width: calc(50% - 40px);
            padding: 2.5rem;
            background: rgba(20, 20, 50, 0.4);
            border-radius: 20px;
            margin-bottom: 5rem;
            position: relative;
            backdrop-filter: blur(5px);
            border: 1px solid rgba(106, 0, 255, 0.3);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            will-change: transform;
        }

        .journey-item:nth-child(odd) {
            align-self: flex-start;
        }

        .journey-item:nth-child(even) {
            align-self: flex-end;
        }

        .journey-item::before {
            content: '';
            position: absolute;
            top: 40px;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--accent1);
            box-shadow: 0 0 15px var(--accent1);
        }

        .journey-item:nth-child(odd)::before {
            right: -57px;
        }

        .journey-item:nth-child(even)::before {
            left: -57px;
        }

        .journey-item h3 {
            font-size: 1.8rem;
            margin-bottom: 1.2rem;
            color: var(--accent1);
            font-family: 'Orbitron', sans-serif;
        }

        .journey-item .date {
            font-size: 1.1rem;
            color: var(--accent3);
            margin-bottom: 1rem;
            display: block;
        }

        .journey-item p {
            font-size: 1.2rem;
            line-height: 1.7;
        }

        /* Contact Section */
        .contact-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 5rem;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 3rem;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 2rem;
            transition: all 0.3s ease;
            padding: 1.5rem;
            border-radius: 15px;
            background: rgba(20, 20, 50, 0.3);
            border: 1px solid rgba(106, 0, 255, 0.2);
            will-change: transform;
        }

        .contact-item:hover {
            transform: translateY(-10px);
            background: rgba(20, 20, 50, 0.5);
            box-shadow: 0 10px 30px rgba(106, 0, 255, 0.3);
        }

        .contact-icon {
            width: 70px;
            height: 70px;
            background: rgba(106, 0, 255, 0.2);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 2rem;
            color: var(--accent1);
            flex-shrink: 0;
        }

        .contact-text h3 {
            font-size: 1.8rem;
            margin-bottom: 0.5rem;
            font-family: 'Orbitron', sans-serif;
        }

        .contact-text p {
            font-size: 1.3rem;
            opacity: 0.9;
        }

        .contact-form {
            background: rgba(20, 20, 50, 0.4);
            padding: 3rem;
            border-radius: 20px;
            border: 1px solid rgba(106, 0, 255, 0.3);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(5px);
        }

        .form-group {
            margin-bottom: 2rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.8rem;
            color: var(--accent1);
            font-size: 1.2rem;
            font-family: 'Orbitron', sans-serif;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 1.2rem;
            background: rgba(10, 10, 30, 0.7);
            border: 1px solid rgba(106, 0, 255, 0.3);
            border-radius: 12px;
            color: var(--text);
            font-family: 'Exo 2', sans-serif;
            font-size: 1.2rem;
            transition: all 0.3s ease;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--accent1);
            box-shadow: 0 0 15px rgba(0, 247, 255, 0.3);
        }

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

        /* Footer */
        footer {
            padding: 5rem 10%;
            text-align: center;
            border-top: 1px solid rgba(106, 0, 255, 0.3);
            background: rgba(5, 5, 20, 0.7);
            backdrop-filter: blur(10px);
        }

        .social-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .social-icon {
            width: 70px;
            text-decoration: none;
            height: 70px;
            border-radius: 50%;
            background: rgba(106, 0, 255, 0.2);
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 2rem;
            color: var(--accent1);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            will-change: transform;
        }

        .social-icon::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: 0.5s;
        }

        .social-icon:hover {
            background: var(--accent1);
            color: var(--primary);
            transform: translateY(-10px) rotate(10deg);
            box-shadow: 0 0 30px var(--accent1);
        }

        .social-icon:hover::before {
            left: 100%;
        }

        footer p {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            opacity: 0.8;
        }

        .copyright {
            margin-top: 3rem;
            font-size: 1rem;
            opacity: 0.6;
        }

        /* Scroll Indicator */
        .scroll-indicator {
            position: fixed;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            z-index: 50;
            transition: opacity 0.3s ease;
        }

        .scroll-text {
            font-size: 0.9rem;
            margin-bottom: 10px;
            opacity: 0.7;
            animation: pulseText 2s infinite;
        }

        .scroll-arrow {
            width: 30px;
            height: 50px;
            border: 2px solid var(--accent1);
            border-radius: 50px;
            position: relative;
        }

        .scroll-arrow::before {
            content: '';
            position: absolute;
            top: 10px;
            left: 50%;
            transform: translateX(-50%);
            width: 6px;
            height: 6px;
            background: var(--accent1);
            border-radius: 50%;
            animation: scrollDown 1.5s infinite;
        }

        @keyframes pulseText {
            0%, 100% { opacity: 0.5; }
            50% { opacity: 1; }
        }

        @keyframes scrollDown {
            0% { 
                transform: translate(-50%, 0);
                opacity: 0;
            }
            50% { 
                opacity: 1;
            }
            100% { 
                transform: translate(-50%, 15px);
                opacity: 0;
            }
        }

        /* Data Science Section */
        #data-science {
            background: rgba(10, 10, 30, 0.3);
            border-top: 1px solid rgba(0, 247, 255, 0.2);
            border-bottom: 1px solid rgba(106, 0, 255, 0.2);
        }

        .ds-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            max-width: 1400px;
            margin: 0 auto;
        }

        .ds-visual {
            position: relative;
            height: 500px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .data-sphere {
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, rgba(106, 0, 255, 0.2), transparent);
            position: relative;
            box-shadow: inset 0 0 80px rgba(0, 247, 255, 0.3), 
                        0 0 60px rgba(106, 0, 255, 0.4);
            animation: pulseSphere 8s infinite ease-in-out;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .data-sphere::before {
            content: '';
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            border: 2px solid rgba(0, 247, 255, 0.3);
            animation: rotate 25s linear infinite reverse;
            box-shadow: 0 0 40px rgba(0, 247, 255, 0.2);
        }

        .data-sphere::after {
            content: '';
            position: absolute;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            border: 1px solid rgba(255, 0, 200, 0.2);
            animation: rotate 40s linear infinite;
            box-shadow: 0 0 30px rgba(255, 0, 200, 0.1);
        }

        .data-node {
            position: absolute;
            width: 50px;
            height: 50px;
            background: rgba(0, 247, 255, 0.8);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            color: var(--primary);
            font-weight: bold;
            font-size: 1.2rem;
            box-shadow: 0 0 20px var(--accent1);
            transform-origin: center;
            animation: floatNode 12s infinite ease-in-out;
        }

        .node-1 { top: 30px; left: 50%; transform: translateX(-50%); animation-delay: 0s; }
        .node-2 { top: 70%; right: 30px; animation-delay: 1s; }
        .node-3 { bottom: 40px; left: 30px; animation-delay: 2s; }
        .node-4 { top: 40%; right: 10%; animation-delay: 3s; }
        .node-5 { bottom: 30%; left: 20%; animation-delay: 4s; }

        @keyframes pulseSphere {
            0%, 100% { transform: scale(1); box-shadow: inset 0 0 80px rgba(0, 247, 255, 0.3), 0 0 60px rgba(106, 0, 255, 0.4); }
            50% { transform: scale(1.05); box-shadow: inset 0 0 100px rgba(0, 247, 255, 0.4), 0 0 80px rgba(106, 0, 255, 0.6); }
        }

        @keyframes floatNode {
            0%, 100% { transform: translate(0, 0) scale(1); }
            25% { transform: translate(10px, -15px) scale(1.1); }
            50% { transform: translate(-10px, 10px) scale(0.9); }
            75% { transform: translate(15px, 5px) scale(1.05); }
        }

        .ds-content {
            padding: 2rem;
        }

        .ds-content h3 {
            font-size: 2.5rem;
            margin-bottom: 2rem;
            color: var(--accent1);
            font-family: 'Orbitron', sans-serif;
        }

        .ds-content p {
            margin-bottom: 2rem;
            font-size: 1.3rem;
            line-height: 1.8;
        }

        .ds-skills {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .ds-skill {
            padding: 1.2rem;
            background: rgba(106, 0, 255, 0.15);
            border-radius: 15px;
            border: 1px solid rgba(0, 247, 255, 0.3);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }

        .ds-skill::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(0, 247, 255, 0.2), transparent);
            transition: 0.5s;
            z-index: -1;
        }

        .ds-skill:hover {
            background: rgba(0, 247, 255, 0.2);
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 247, 255, 0.3);
        }

        .ds-skill:hover::before {
            left: 100%;
        }

        .ds-skill h4 {
            font-size: 1.4rem;
            margin-bottom: 0.8rem;
            color: var(--accent1);
            font-family: 'Orbitron', sans-serif;
        }

        .ds-skill p {
            font-size: 1.1rem;
            margin-bottom: 0;
            opacity: 0.9;
        }

        /* Certificate Section */
        #certificate {
            background: rgba(10, 10, 30, 0.3);
            border-top: 1px solid rgba(0, 247, 255, 0.2);
            border-bottom: 1px solid rgba(106, 0, 255, 0.2);
            padding: 8rem 5%;
            position: relative;
            overflow: hidden;
        }
        
        .cert-container {
            max-width: 1000px;
            margin: 0 auto;
            position: relative;
            z-index: 10;
        }
        
        .cert-title {
            text-align: center;
            font-family: 'Orbitron', sans-serif;
            font-size: 3rem;
            margin-bottom: 4rem;
            color: var(--accent1);
            text-transform: uppercase;
            letter-spacing: 3px;
            position: relative;
        }
        
        .cert-title::after {
            content: '';
            position: absolute;
            bottom: -20px;
            left: 50%;
            transform: translateX(-50%);
            width: 200px;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--accent1), transparent);
            box-shadow: 0 0 15px var(--accent1);
        }
        
        .cert-card {
            background: linear-gradient(135deg, rgba(20, 20, 50, 0.8), rgba(10, 10, 30, 0.9));
            border-radius: 15px;
            padding: 3rem;
            box-shadow: 0 0 50px rgba(106, 0, 255, 0.3),
                        0 0 0 3px rgba(0, 247, 255, 0.1),
                        0 0 0 6px rgba(106, 0, 255, 0.05);
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(0, 247, 255, 0.2);
        }
        
        .cert-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%2300f7ff' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
            opacity: 0.2;
        }
        
        .cert-header {
            text-align: center;
            margin-bottom: 2rem;
            position: relative;
        }
        
        .cert-logo {
            width: 120px;
            height: 120px;
            background: rgba(0, 247, 255, 0.1);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            margin: 0 auto 1.5rem;
            border: 2px solid var(--accent1);
            box-shadow: 0 0 30px rgba(0, 247, 255, 0.3);
        }
        
        .cert-logo i {
            font-size: 3.5rem;
            color: var(--accent1);
        }
        
        .cert-uni {
            font-family: 'Orbitron', sans-serif;
            font-size: 1.8rem;
            color: var(--accent1);
            margin-bottom: 0.5rem;
            letter-spacing: 2px;
        }
        
        .cert-dept {
            font-size: 1.3rem;
            color: var(--text);
            opacity: 0.9;
            margin-bottom: 0.5rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        .cert-body {
            text-align: center;
            padding: 2rem 0;
            position: relative;
        }
        
        .cert-body::before,
        .cert-body::after {
            content: '';
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent1), transparent);
            box-shadow: 0 0 10px var(--accent1);
        }
        
        .cert-body::before {
            top: 0;
        }
        
        .cert-body::after {
            bottom: 0;
        }
        
        .cert-text {
            font-size: 1.5rem;
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        
        .cert-name {
            font-family: 'Orbitron', sans-serif;
            font-size: 2.5rem;
            color: var(--accent1);
            margin: 1.5rem 0;
            text-transform: uppercase;
            letter-spacing: 3px;
            text-shadow: 0 0 10px rgba(0, 247, 255, 0.5);
        }
        
        .cert-workshop {
            font-size: 1.8rem;
            margin-bottom: 2rem;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(90deg, var(--accent1), var(--accent3));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .cert-details {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
            margin-top: 3rem;
            text-align: left;
        }
        
        .cert-detail {
            background: rgba(10, 10, 30, 0.4);
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px solid rgba(106, 0, 255, 0.2);
        }
        
        .cert-detail h4 {
            font-family: 'Orbitron', sans-serif;
            color: var(--accent1);
            margin-bottom: 0.5rem;
            font-size: 1.2rem;
        }
        
        .cert-detail p {
            font-size: 1.2rem;
        }
        
        .satellite-cert {
            position: absolute;
            width: 60px;
            height: 20px;
            background: var(--accent1);
            border-radius: 15px;
            animation: float 10s ease-in-out infinite;
            box-shadow: 0 0 20px var(--accent1);
            pointer-events: none;
            z-index: 1;
        }
        
        .satellite-cert::before {
            content: '';
            position: absolute;
            width: 12px;
            height: 12px;
            background: var(--accent3);
            border-radius: 50%;
            top: -15px;
            left: 24px;
        }
        
        .sat-cert-1 {
            top: 15%;
            right: 10%;
            animation-delay: 0s;
        }
        
        .sat-cert-2 {
            bottom: 20%;
            left: 8%;
            animation-delay: 2s;
        }
        
        .certificate-footer {
            text-align: center;
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px solid rgba(106, 0, 255, 0.2);
        }

        .registration-number {
            font-size: 1.3rem;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .signatures {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin: 40px 0;
        }

        .signature {
            padding: 20px;
        }

        .signature p {
            margin-top: 10px;
            font-size: 1.1rem;
            opacity: 0.8;
        }

        .seal-container {
            margin: 30px 0;
        }

        .seal {
            width: 120px;
            height: 120px;
            background: rgba(255, 0, 200, 0.1);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            margin: 0 auto;
            border: 2px solid var(--accent3);
            box-shadow: 0 0 40px rgba(255, 0, 200, 0.3);
        }

        .seal i {
            font-size: 3rem;
            color: var(--accent3);
        }

        .view-certificate-btn {
            display: inline-block;
            padding: 15px 40px;
            background: linear-gradient(90deg, var(--accent2), var(--accent3));
            color: white;
            font-family: 'Orbitron', sans-serif;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            transition: all 0.4s ease;
            box-shadow: 0 0 30px rgba(106, 0, 255, 0.7);
            border: none;
            cursor: pointer;
            font-size: 1.2rem;
            position: relative;
            overflow: hidden;
            z-index: 1;
            margin-top: 30px;
        }

        .view-certificate-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: 0.5s;
            z-index: -1;
        }

        .view-certificate-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 35px rgba(106, 0, 255, 0.9);
        }

        .view-certificate-btn:hover::before {
            left: 100%;
        }

        .lightbox {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.9);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }

        .lightbox-content {
            max-width: 90%;
            max-height: 90%;
            border: 3px solid var(--accent1);
            border-radius: 10px;
            box-shadow: 0 0 50px rgba(0, 247, 255, 0.5);
        }

        .close-lightbox {
            position: absolute;
            top: 20px;
            right: 30px;
            color: white;
            font-size: 3rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .close-lightbox:hover {
            color: var(--accent1);
            transform: rotate(90deg);
        }

        /* Responsive Design */
        @media (max-width: 1200px) {
            .projects-grid {
                grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            }
            
            .section-title {
                font-size: 3rem;
            }
        }

        @media (max-width: 992px) {
            .about-content,
            .contact-container,
            .ds-container {
                grid-template-columns: 1fr;
                gap: 3rem;
            }
            
            .hero h1 {
                font-size: 3.5rem;
            }
            
            .hero h1 span {
                font-size: 2.2rem;
            }
            
            .journey-container::before {
                left: 40px;
            }
            
            .journey-item {
                width: calc(100% - 80px);
                margin-left: 40px;
            }
            
            .journey-item:nth-child(even) {
                align-self: flex-start;
            }
            
            .journey-item::before {
                left: -57px;
            }
            
            .planet-1 {
                left: 5%;
                bottom: -150px;
            }
            
            .planet-2 {
                top: 15%;
                right: 5%;
            }
            
            .ds-visual {
                height: 400px;
            }
            
            .data-sphere {
                width: 250px;
                height: 250px;
            }
        }

        @media (max-width: 768px) {
            nav ul {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .projects-grid {
                grid-template-columns: 1fr;
            }
            
            .hero {
                padding: 0 5%;
                height: 150vh;
            }
            
            .hero h1 {
                font-size: 2.8rem;
            }
            
            .hero h1 span {
                font-size: 1.8rem;
            }
            
            .hero p {
                font-size: 1.2rem;
            }
            
            .section-title {
                font-size: 2.5rem;
            }
            
            .ai-orbit {
                width: 300px;
                height: 300px;
                left: 50%;
                transform: translateX(-50%);
                top: 20%;
            }
            
            .satellite {
                right: 5%;
            }
            
            .planet-1 {
                width: 150px;
                height: 150px;
                bottom: -80px;
                left: 3%;
            }
            
            .planet-2 {
                width: 100px;
                height: 100px;
                top: 10%;
                right: 3%;
            }
            
            .planet-3, .planet-4 {
                display: none;
            }
            
            .about-visual {
                height: 300px;
            }
            
            .cube {
                width: 200px;
                height: 200px;
            }
            
            .face {
                width: 200px;
                height: 200px;
            }
            
            .ds-skills {
                grid-template-columns: 1fr;
            }
            
            .ds-visual {
                height: 300px;
            }
            
            .satellite-cert {
                display: none;
            }
            
            .cert-details {
                grid-template-columns: 1fr;
            }
            
            .cert-card {
                padding: 2rem;
            }
        }

        @media (max-width: 576px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .hero h1 span {
                font-size: 1.5rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .about-text h3 {
                font-size: 1.8rem;
            }
            
            .about-text p {
                font-size: 1.1rem;
            }
            
            .tech-item {
                padding: 0.6rem 1.2rem;
                font-size: 1rem;
            }
            
            .journey-item {
                padding: 1.5rem;
                margin-left: 80px;
            }
            
            .journey-item h3 {
                font-size: 1.5rem;
            }
            
            .journey-item p {
                font-size: 1rem;
            }
            
            .contact-item {
                flex-direction: column;
                text-align: center;
                padding: 1.5rem 1rem;
            }
            
            .contact-text p {
                font-size: 1.1rem;
            }
            
            .contact-form {
                padding: 2rem;
            }
            
            .social-icon {
                width: 50px;
                height: 50px;
                font-size: 1.5rem;
            }
            
            .cert-title {
                font-size: 2rem;
            }
            
            .cert-name {
                font-size: 1.8rem;
            }
            
            .cert-workshop {
                font-size: 1.3rem;
            }
            
            .cert-text {
                font-size: 1.1rem;
            }
            
            .cert-detail {
                padding: 1rem;
            }
            
            .cert-logo {
                width: 90px;
                height: 90px;
            }
            
            .cert-logo i {
                font-size: 2.5rem;
            }
            
            .cert-uni {
                font-size: 1.5rem;
            }
            
            .signatures {
                grid-template-columns: 1fr;
            }
            
            .view-certificate-btn {
                padding: 12px 30px;
                font-size: 1rem;
            }
            
            .ds-content h3 {
                font-size: 2rem;
            }
            
            .ds-content p {
                font-size: 1.1rem;
            }
            
            .data-sphere {
                width: 200px;
                height: 200px;
            }
            
            .data-node {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }

       /* Mobile Optimization for Geometric Shapes */
@media (max-width: 768px) {
    /* Enable animations for key elements with performance optimizations */
    .star {
        animation: twinkle var(--duration, 5s) infinite var(--delay, 0s) !important;
    }
    
    .planet {
        animation: rotate 50s linear infinite !important;
    }
    
    .ai-orbit {
        animation: orbit 25s linear infinite !important;
        display: none;
    }
    
    .satellite {
        animation: float 10s ease-in-out infinite !important;
    }
    
    .cube {
        animation: rotateCubeMobile 25s infinite linear !important;
    }
    
    .data-sphere {
        animation: pulseSphereMobile 8s infinite ease-in-out !important;
    }
    
    .data-node {
        animation: floatNodeMobile 12s infinite ease-in-out !important;
    }
    
    /* Simplified animations for mobile performance */
    @keyframes rotateCubeMobile {
        0% { transform: rotateY(0); }
        100% { transform: rotateY(360deg); }
    }
    
    @keyframes pulseSphereMobile {
        0%, 100% { transform: scale(1); }
        50% { transform: scale(1.05); }
    }
    
    @keyframes floatNodeMobile {
        0%, 100% { transform: translate(0, 0) scale(1); }
        50% { transform: translate(0, -10px) scale(1.1); }
    }
    
    /* Adjust planet sizes and positions for mobile */
    .planet-1 {
        width: 120px;
        height: 120px;
        bottom: -60px;
        left: 5%;
    }
    
    .planet-2 {
        width: 80px;
        height: 80px;
        top: 15%;
        right: 5%;
    }
    
    .planet-3, .planet-4 {
        display: block;
        width: 60px;
        height: 60px;
    }
    
    .planet-3 {
        top: 70%;
        left: 5%;
    }
    
    .planet-4 {
        bottom: 20%;
        right: 15%;
    }
    
    /* Adjust cube size for mobile */
    .about-visual {
        height: 250px;
    }
    
    .cube {
        width: 180px;
        height: 180px;
    }
    
    .face {
        width: 180px;
        height: 180px;
        font-size: 2rem;
    }
    
    .face.front { transform: translateZ(90px); }
    .face.back { transform: rotateY(180deg) translateZ(90px); }
    .face.right { transform: rotateY(90deg) translateZ(90px); }
    .face.left { transform: rotateY(-90deg) translateZ(90px); }
    .face.top { transform: rotateX(90deg) translateZ(90px); }
    .face.bottom { transform: rotateX(-90deg) translateZ(90px); }
    
    /* Adjust data sphere for mobile */
    .ds-visual {
        height: 280px;
    }
    
    .data-sphere {
        width: 180px;
        height: 180px;
    }
    
    .data-sphere::before {
        width: 200px;
        height: 200px;
    }
    
    .data-sphere::after {
        width: 220px;
        height: 220px;
    }
    
    .data-node {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    /* Re-enable satellite certificates */
    .satellite-cert {
        display: block;
    }
    
    /* Adjust certificate section */
    .cert-card {
        padding: 1.5rem;
    }
    
    .cert-name {
        font-size: 1.8rem;
    }
    
    .cert-workshop {
        font-size: 1.3rem;
    }
    
    .signatures {
        grid-template-columns: 1fr;
    }
}

/* Additional optimizations for small screens */
@media (max-width: 480px) {
    .cube {
        width: 150px;
        height: 150px;
    }
    
    .face {
        width: 150px;
        height: 150px;
        font-size: 1.8rem;
    }
    
    .face.front { transform: translateZ(75px); }
    .face.back { transform: rotateY(180deg) translateZ(75px); }
    .face.right { transform: rotateY(90deg) translateZ(75px); }
    .face.left { transform: rotateY(-90deg) translateZ(75px); }
    .face.top { transform: rotateX(90deg) translateZ(75px); }
    .face.bottom { transform: rotateX(-90deg) translateZ(75px); }
    
    .data-sphere {
        width: 150px;
        height: 150px;
    }
    
    .data-sphere::before {
        width: 170px;
        height: 170px;
    }
    
    .data-sphere::after {
        width: 190px;
        height: 190px;
    }
    
    .data-node {
        width: 30px;
        height: 30px;
        font-size: 0.8rem;
    }
}