:root {
            --primary: #9f7aea;
            --primary-dark: #805ad5;
            --secondary: #6b46c1;
            --accent: #d946ef;
            --dark-1: #0b0815;
            --dark-2: #161325;
            --dark-3: #1e1a35;
            --dark-4: #2a2545;
            --light: #e2e8f0;
            --transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            --glass: rgba(25, 20, 45, 0.7);
            --glow: 0 0 15px rgba(159, 122, 234, 0.5);
            
            --light-bg: #f9fafb;
            --light-text: #1a202c;
            --light-card: #ffffff;
            --light-border: #e2e8f0;
            --light-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            --light-glass: rgba(255, 255, 255, 0.7);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            cursor: none;
        }
        
        html {
            scroll-behavior: smooth;
            overflow-x: hidden;
            scroll-padding-top: 100px;
        }
        
        body {
            font-family: 'Poppins', sans-serif;
            background: linear-gradient(135deg, #070515, #0f0825, #15082f);
            color: var(--light);
            line-height: 1.8;
            overflow-x: hidden;
            position: relative;
            min-height: 100vh;
            transition: background 0.8s ease, color 0.8s ease;
        }
        
        body.light-mode {
            background: linear-gradient(135deg, #f0f4ff, #e6edff, #e0e7ff);
            color: var(--light-text);
        }
        
        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 5%;
        }
        
        .section {
            min-height: 100vh;
            padding: 120px 0;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        
        .section-title {
            font-size: 4rem;
            font-weight: 800;
            margin-bottom: 60px;
            position: relative;
            display: inline-block;
            letter-spacing: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: var(--glow);
        }
        
        .light-mode .section-title {
            text-shadow: 0 5px 15px rgba(159, 122, 234, 0.3);
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 0;
            width: 80px;
            height: 5px;
            background: var(--primary);
            border-radius: 10px;
            box-shadow: var(--glow);
        }
        
        .btn {
            display: inline-block;
            padding: 18px 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            font-weight: 600;
            border-radius: 50px;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: var(--shadow);
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
            z-index: 1;
            font-size: 1.1rem;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        
        .light-mode .btn {
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 0;
            height: 100%;
            background: linear-gradient(135deg, var(--accent), var(--primary));
            transition: var(--transition);
            z-index: -1;
        }
        
        .btn:hover::before {
            width: 100%;
        }
        
        .btn:hover {
            transform: translateY(-7px) scale(1.05);
            box-shadow: 0 15px 40px rgba(159, 122, 234, 0.5);
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        
        .light-mode .btn-outline {
            color: var(--primary);
            background: transparent;
        }
        
        nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            padding: 20px 0;
            transition: var(--transition);
            background: rgba(11, 8, 21, 0.8);
            backdrop-filter: blur(10px);
        }
        
        .light-mode nav {
            background: rgba(249, 250, 251, 0.8);
        }
        
        nav.scrolled {
            padding: 15px 0;
            box-shadow: 0 5px 30px rgba(0, 0, 0, 0.1);
            background: rgba(11, 8, 21, 0.95);
        }
        
        .light-mode nav.scrolled {
            background: rgba(249, 250, 251, 0.95);
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            transition: var(--transition);
        }
        
        .light-mode .logo {
            color: var(--light-text);
        }
        
        .logo span {
            color: var(--primary);
            margin-left: 5px;
            text-shadow: var(--glow);
        }
        
        .logo:hover {
            transform: scale(1.05);
        }
        
        .nav-links {
            display: flex;
            gap: 40px;
        }
        
        .nav-links a {
            color: white;
            text-decoration: none;
            font-size: 1.1rem;
            font-weight: 500;
            position: relative;
            padding: 5px 0;
            transition: var(--transition);
        }
        
        .light-mode .nav-links a {
            color: var(--light-text);
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
            box-shadow: var(--glow);
        }
        
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        
        .nav-links a:hover {
            color: var(--primary);
            text-shadow: var(--glow);
        }
        
        .light-mode .nav-links a:hover {
            text-shadow: none;
        }
        
        .hamburg {
            display: none;
            font-size: 1.8rem;
            color: white;
            cursor: pointer;
            z-index: 1001;
        }
        
        .light-mode .hamburg {
            color: var(--light-text);
        }
        #hero {
            padding-top: 150px;
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }
        
        .hero-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 60px;
        }
        
        .hero-content {
            max-width: 600px;
            z-index: 2;
        }
        
        .hero-content h1 {
            font-size: 5rem;
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: 20px;
            background: linear-gradient(90deg, #e2e8f0, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: var(--glow);
        }
        
        .hero-content h1 span {
            display: block;
            font-weight: 800;
        }
        
        .hero-content p {
            font-size: 1.4rem;
            margin-bottom: 40px;
            opacity: 0.9;
            line-height: 1.8;
            text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
        }
        
        .light-mode .hero-content p {
            text-shadow: none;
            opacity: 0.8;
            color: #4a5568;
        }
        
        .btn-group {
            display: flex;
            gap: 20px;
            margin-top: 30px;
        }
        
        .hero-image {
            position: relative;
            z-index: 1;
            perspective: 1000px;
        }
        
        .hero-image img {
            max-width: 100%;
            border-radius: 20px;
            box-shadow: var(--shadow);
            transform: rotateY(-10deg) rotateX(5deg);
            transition: var(--transition);
            border: 5px solid rgba(255, 255, 255, 0.05);
        }
        
        .light-mode .hero-image img {
            border: 5px solid rgba(0, 0, 0, 0.05);
        }
        
        .hero-image:hover img {
            transform: rotateY(0deg) rotateX(0deg);
            box-shadow: 0 25px 60px rgba(128, 0, 255, 0.4);
        }
        
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 50px;
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary);
            text-shadow: var(--glow);
            margin-bottom: 10px;
        }
        
        .stat-label {
            font-size: 1.1rem;
            opacity: 0.8;
        }
        
        .light-mode .stat-label {
            opacity: 0.7;
            color: #4a5568;
        }
        
        /* ===== ABOUT SECTION ===== */
        #about {
            background: var(--dark-1);
            position: relative;
        }
        
        .light-mode #about {
            background: linear-gradient(135deg, #f0f4ff, #e6edff);
        }
        
        .about-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        
        .about-content p {
            font-size: 1.2rem;
            line-height: 1.8;
            margin-bottom: 25px;
            opacity: 0.9;
        }
        
        .light-mode .about-content p {
            opacity: 0.8;
            color: #4a5568;
        }
        
        .skills {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 30px;
        }
        
        .skill-item {
            background: rgba(159, 122, 234, 0.15);
            color: var(--primary);
            padding: 12px 28px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 500;
            transition: var(--transition);
            border: 1px solid rgba(159, 122, 234, 0.3);
            backdrop-filter: blur(5px);
            position: relative;
        }
        
        .light-mode .skill-item {
            background: rgba(159, 122, 234, 0.1);
            border: 1px solid rgba(159, 122, 234, 0.2);
        }
        
        .skill-item:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(159, 122, 234, 0.3);
        }
        
        .about-image {
            display: flex;
            justify-content: center;
            perspective: 1000px;
        }
        
        .profile-img {
            width: 100%;
            max-width: 500px;
            border-radius: 20px;
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
            transition: var(--transition);
            transform: rotateX(5deg) rotateY(-5deg);
            border: 5px solid rgba(255, 255, 255, 0.05);
        }
        
        .light-mode .profile-img {
            border: 5px solid rgba(0, 0, 0, 0.05);
        }
        
        .profile-img:hover {
            transform: rotateX(0) rotateY(0);
            box-shadow: 0 25px 50px rgba(128, 0, 255, 0.3);
        }
        
        /* ===== TECH TALK SECTION ===== */
        #tech {
            background: linear-gradient(135deg, #0b0a1d, #1a0b2e);
            position: relative;
            min-height: auto;
            padding: 100px 0;
        }
        
        .light-mode #tech {
            background: linear-gradient(135deg, #e0e7ff, #dbeafe);
        }
        
        .tech-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 50px;
            width: 100%;
            max-width: 1400px;
        }
        
        @media (max-width: 1200px) {
            .tech-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (max-width: 992px) {
            .tech-grid {
                grid-template-columns: repeat(2, 1fr);
                max-width: 700px;
            }
        }
        
        @media (max-width: 576px) {
            .tech-grid {
                grid-template-columns: 1fr;
            }
        }
        
        .tech-card {
            background: var(--glass);
            border-radius: 20px;
            padding: 40px 25px;
            transition: var(--transition);
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            position: relative;
            overflow: hidden;
            perspective: 1000px;
            transform-style: preserve-3d;
            display: flex;
            flex-direction: column;
            align-items: center;
            min-height: 380px;
        }
        
        .light-mode .tech-card {
            background: var(--light-glass);
            border: 1px solid var(--light-border);
            box-shadow: var(--light-shadow);
        }
        
        .tech-card:hover {
            transform: translateY(-15px) rotateY(5deg) rotateX(5deg);
            box-shadow: 0 20px 50px rgba(128, 0, 255, 0.3);
        }
        
        .tech-icon {
            font-size: 4rem;
            margin-bottom: 25px;
            transition: var(--transition);
        }
        
        .tech-card:nth-child(1) .tech-icon {
            color: #e34f26; /* HTML color */
        }
        
        .tech-card:nth-child(2) .tech-icon {
            color: #2965f1; /* CSS color */
        }
        
        .tech-card:nth-child(3) .tech-icon {
            color: #f0db4f; /* JS color */
        }
        
        .tech-card:nth-child(4) .tech-icon {
            color: #239120; /* C# color */
        }
        
        .tech-card:nth-child(5) .tech-icon {
            color: #7952b3; /* Bootstrap color */
        }
        
        .tech-card:nth-child(6) .tech-icon {
            color: #000000; /* Vercel color */
        }
        
        .tech-card:nth-child(7) .tech-icon {
            color: #f27474; /* SweetAlert color */
        }
        
        .tech-card:nth-child(8) .tech-icon {
            color: #0081cb; /* Material UI color */
        }
        
        .tech-card:nth-child(9) .tech-icon {
            color: #339933; /* Node.js color */
        }
        
        .tech-card:nth-child(10) .tech-icon {
            color: #ffca28; /* Firebase color */
        }
        
        .tech-card:nth-child(11) .tech-icon {
            color: #61dafb; /* React.js color */
        }
        
        .tech-card:nth-child(12) .tech-icon {
            color: #bd34fe; /* Vite color */
        }
        
        .tech-card:hover .tech-icon {
            transform: scale(1.2);
            filter: drop-shadow(0 0 10px currentColor);
        }
        
        .tech-card h3 {
            font-size: 2rem;
            margin-bottom: 15px;
        }
        
        .tech-card p {
            font-size: 1rem;
            line-height: 1.6;
            margin-bottom: 20px;
            max-width: 300px;
        }
        
        .tech-stats {
            display: flex;
            justify-content: space-between;
            width: 100%;
            margin-top: auto;
        }
        
        .tech-stat {
            text-align: center;
        }
        
        .tech-stat .stat-value {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }
        
        .tech-stat .stat-label {
            font-size: 0.9rem;
            opacity: 0.8;
        }
        
        .tech-card:hover .tech-stat .stat-value {
            text-shadow: 0 0 10px currentColor;
        }
        
        /* ===== SERVICES SECTION ===== */
        #services {
            background: var(--dark-1);
            position: relative;
        }
        
        .light-mode #services {
            background: linear-gradient(135deg, #f0f4ff, #e6edff);
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 40px;
        }
        
        .service-card {
            background: var(--glass);
            border-radius: 20px;
            padding: 50px 40px;
            transition: var(--transition);
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            position: relative;
            overflow: hidden;
            transform: translateY(50px);
            opacity: 0;
            transform-style: preserve-3d;
        }
        
        .light-mode .service-card {
            background: var(--light-glass);
            border: 1px solid var(--light-border);
            box-shadow: var(--light-shadow);
        }
        
        .service-card.visible {
            transform: translateY(0);
            opacity: 1;
        }
        
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: var(--primary);
            transition: var(--transition);
            box-shadow: var(--glow);
        }
        
        .service-card:hover::before {
            width: 100%;
            opacity: 0.1;
        }
        
        .service-card:hover {
            transform: translateY(-15px) rotateX(10deg) rotateY(10deg);
            box-shadow: 0 20px 50px rgba(128, 0, 255, 0.3);
        }
        
        .service-icon {
            font-size: 3.5rem;
            color: var(--primary);
            margin-bottom: 25px;
            transition: var(--transition);
            text-shadow: var(--glow);
        }
        
        .light-mode .service-icon {
            text-shadow: 0 0 10px rgba(159, 122, 234, 0.2);
        }
        
        .service-card:hover .service-icon {
            transform: rotate(15deg) scale(1.2);
            color: var(--accent);
        }
        
        .service-card h3 {
            font-size: 2rem;
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }
        
        .service-card p {
            color: #a0aec0;
            line-height: 1.7;
            font-size: 1.1rem;
            position: relative;
            z-index: 2;
        }
        
        .light-mode .service-card p {
            color: #4a5568;
        }
        
        /* ===== PROJECTS SECTION ===== */
        #projects {
            background: linear-gradient(135deg, #0b0a1d, #1a0b2e);
            position: relative;
        }
        
        .light-mode #projects {
            background: linear-gradient(135deg, #f0f4ff, #e6edff);
        }
        
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
            gap: 40px;
        }
        
        .project-card {
            background: var(--glass);
            border-radius: 20px;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow);
            position: relative;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            transform: translateY(50px);
            opacity: 0;
            perspective: 1000px;
            transform-style: preserve-3d;
        }
        
        .light-mode .project-card {
            background: var(--light-glass);
            border: 1px solid var(--light-border);
            box-shadow: var(--light-shadow);
        }
        
        .project-card.visible {
            transform: translateY(0);
            opacity: 1;
        }
        
        .project-card:hover {
            transform: translateY(-15px) rotateY(5deg) rotateX(5deg);
            box-shadow: 0 20px 50px rgba(128, 0, 255, 0.3);
            border-color: rgba(159, 122, 234, 0.3);
        }
        
        .project-image {
            height: 280px;
            overflow: hidden;
            position: relative;
        }
        
        .project-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .project-card:hover .project-image img {
            transform: scale(1.1);
        }
        
        .project-content {
            padding: 30px;
            position: relative;
            z-index: 2;
        }
        
        .project-content h3 {
            font-size: 2rem;
            margin-bottom: 15px;
            color: var(--primary);
            text-shadow: var(--glow);
        }
        
        .light-mode .project-content h3 {
            text-shadow: none;
        }
        
        .project-content p {
            color: #a0aec0;
            margin-bottom: 25px;
            line-height: 1.7;
            font-size: 1.1rem;
        }
        
        .light-mode .project-content p {
            color: #4a5568;
        }
        
        .project-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 25px;
        }
        
        .project-tag {
            background: rgba(159, 122, 234, 0.15);
            color: var(--primary);
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.95rem;
            backdrop-filter: blur(5px);
        }
        
        .light-mode .project-tag {
            background: rgba(159, 122, 234, 0.1);
        }
        
        /* ===== EXPERIENCE SECTION ===== */
        #experience {
            background: var(--dark-1);
            position: relative;
        }
        
        .light-mode #experience {
            background: linear-gradient(135deg, #f0f4ff, #e6edff);
        }
        
        .timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }
        
        .timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary);
            left: 50%;
            margin-left: -2px;
            box-shadow: var(--glow);
        }
        
        .timeline-item {
            position: relative;
            margin-bottom: 50px;
            width: calc(50% - 40px);
            transform: translateY(50px);
            opacity: 0;
        }
        
        .timeline-item.visible {
            transform: translateY(0);
            opacity: 1;
        }
        
        .timeline-item:nth-child(odd) {
            left: 0;
        }
        
        .timeline-item:nth-child(even) {
            left: calc(50% + 40px);
        }
        
        .timeline-content {
            background: var(--glass);
            padding: 40px;
            border-radius: 20px;
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: var(--transition);
            position: relative;
        }
        
        .light-mode .timeline-content {
            background: var(--light-glass);
            border: 1px solid var(--light-border);
            box-shadow: var(--light-shadow);
        }
        
        .timeline-content:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(128, 0, 255, 0.3);
        }
        
        .timeline-content::before {
            content: '';
            position: absolute;
            top: 20px;
            right: -15px;
            border-style: solid;
            border-width: 15px 0 15px 15px;
            border-color: transparent transparent transparent var(--glass);
        }
        
        .light-mode .timeline-content::before {
            border-color: transparent transparent transparent var(--light-glass);
        }
        
        .timeline-item:nth-child(even) .timeline-content::before {
            left: -15px;
            border-width: 15px 15px 15px 0;
            border-color: transparent var(--glass) transparent transparent;
        }
        
        .light-mode .timeline-item:nth-child(even) .timeline-content::before {
            border-color: transparent var(--light-glass) transparent transparent;
        }
        
        .timeline-content h3 {
            color: var(--primary);
            font-size: 1.8rem;
            margin-bottom: 10px;
            text-shadow: var(--glow);
        }
        
        .light-mode .timeline-content h3 {
            text-shadow: none;
        }
        
        .timeline-content .date {
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 15px;
            display: block;
            font-size: 1.2rem;
        }
        
        .timeline-content p {
            color: #a0aec0;
            line-height: 1.7;
            font-size: 1.1rem;
        }
        
        .light-mode .timeline-content p {
            color: #4a5568;
        }
        
        .timeline-dot {
            position: absolute;
            top: 20px;
            right: -58px;
            width: 20px;
            height: 20px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: var(--glow);
        }
        
        .timeline-item:nth-child(even) .timeline-dot {
            left: -58px;
        }
        
        /* ===== EDUCATION SECTION ===== */
        #education {
            background: linear-gradient(135deg, #0b0a1d, #1a0b2e);
            position: relative;
        }
        
        .light-mode #education {
            background: linear-gradient(135deg, #e0e7ff, #dbeafe);
        }
        
        .education-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 40px;
        }
        
        .education-card {
            background: var(--glass);
            border-radius: 20px;
            padding: 40px;
            transition: var(--transition);
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            position: relative;
            overflow: hidden;
            transform: translateY(50px);
            opacity: 0;
        }
        
        .light-mode .education-card {
            background: var(--light-glass);
            border: 1px solid var(--light-border);
            box-shadow: var(--light-shadow);
        }
        
        .education-card.visible {
            transform: translateY(0);
            opacity: 1;
        }
        
        .education-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(128, 0, 255, 0.3);
        }
        
        .education-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 20px;
            text-shadow: var(--glow);
        }
        
        .education-card h3 {
            font-size: 1.8rem;
            margin-bottom: 10px;
            color: var(--primary);
        }
        
        .education-card .date {
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 15px;
            display: block;
            font-size: 1.1rem;
        }
        
        .education-card p {
            color: #a0aec0;
            line-height: 1.7;
            font-size: 1.1rem;
        }
        
        .light-mode .education-card p {
            color: #4a5568;
        }
        
        /* ===== TESTIMONIALS SECTION ===== */
        #testimonials {
            background: var(--dark-1);
            position: relative;
            overflow: hidden;
        }
        
        .light-mode #testimonials {
            background: linear-gradient(135deg, #f0f4ff, #e6edff);
        }
        
        .testimonials-container {
            max-width: 1000px;
            margin: 0 auto;
            position: relative;
        }
        
        .testimonial {
            background: var(--glass);
            border-radius: 20px;
            padding: 50px;
            margin: 0 20px;
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            transform: scale(0.9);
            opacity: 0;
            transition: var(--transition);
            position: relative;
            z-index: 2;
        }
        
        .light-mode .testimonial {
            background: var(--light-glass);
            border: 1px solid var(--light-border);
            box-shadow: var(--light-shadow);
        }
        
        .testimonial.active {
            transform: scale(1);
            opacity: 1;
        }
        
        .testimonial-content {
            font-size: 1.3rem;
            font-style: italic;
            margin-bottom: 30px;
            line-height: 1.8;
            position: relative;
        }
        
        .light-mode .testimonial-content {
            color: #2d3748;
        }
        
        .testimonial-content::before,
        .testimonial-content::after {
            content: '"';
            font-size: 4rem;
            color: var(--primary);
            opacity: 0.3;
            position: absolute;
        }
        
        .testimonial-content::before {
            top: -20px;
            left: -20px;
        }
        
        .testimonial-content::after {
            bottom: -60px;
            right: -20px;
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
        }
        
        .author-img {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            overflow: hidden;
            border: 3px solid var(--primary);
            box-shadow: var(--glow);
        }
        
        .author-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .author-info h4 {
            font-size: 1.5rem;
            margin-bottom: 5px;
        }
        
        .light-mode .author-info h4 {
            color: #1a202c;
        }
        
        .author-info p {
            color: var(--primary);
            font-weight: 600;
        }
        
        .testimonial-nav {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-top: 40px;
        }
        
        .testimonial-nav button {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--glass);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--light);
            font-size: 1.3rem;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .light-mode .testimonial-nav button {
            background: var(--light-glass);
            border: 1px solid var(--light-border);
            color: var(--light-text);
        }
        
        .testimonial-nav button:hover {
            background: var(--primary);
            transform: translateY(-5px);
            box-shadow: var(--glow);
        }
        
        
        /* ===== CONTACT SECTION ===== */
        #contact {
            background: var(--dark-1);
            position: relative;
            padding: 120px 0;
        }
        
        .light-mode #contact {
            background: linear-gradient(135deg, #f0f4ff, #e6edff);
        }
        
        .contact-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
        }
        
        .contact-info h3 {
            font-size: 2.5rem;
            margin-bottom: 30px;
            color: var(--primary);
            text-shadow: var(--glow);
        }
        
        .light-mode .contact-info h3 {
            text-shadow: none;
        }
        
        .contact-detail {
            display: flex;
            align-items: center;
            margin-bottom: 30px;
            font-size: 1.2rem;
        }
        
        .light-mode .contact-detail {
            color: #2d3748;
            position: relative;
            z-index: 2;
        }
        
        .contact-detail i {
            width: 60px;
            height: 60px;
            background: rgba(159, 122, 234, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 20px;
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
            box-shadow: var(--glow);
        }
        
        .light-mode .contact-detail i {
            background: rgba(159, 122, 234, 0.1);
        }
        
        .contact-detail:hover i {
            background: var(--primary);
            color: white;
            transform: scale(1.1);
        }
        
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 40px;
        }
        
        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(159, 122, 234, 0.15);
            color: var(--primary);
            font-size: 1.8rem;
            transition: var(--transition);
            border: 1px solid rgba(159, 122, 234, 0.3);
            box-shadow: var(--glow);
        }
        
        .light-mode .social-links a {
            background: rgba(159, 122, 234, 0.1);
        }
        
        .social-links a:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-10px) scale(1.1);
            box-shadow: 0 15px 30px rgba(159, 122, 234, 0.4);
        }
        
        .contact-form {
            background: var(--glass);
            padding: 50px;
            border-radius: 20px;
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            position: relative;
            z-index: 2;
        }
        
        .light-mode .contact-form {
            background: var(--light-glass);
            border: 1px solid var(--light-border);
            box-shadow: var(--light-shadow);
        }
        
        .form-group {
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 15px;
            font-weight: 500;
            font-size: 1.2rem;
        }
        
        .light-mode .form-group label {
            color: #2d3748;
        }
        
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 18px;
            background: rgba(15, 23, 42, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            color: white;
            font-family: 'Poppins', sans-serif;
            transition: var(--transition);
            font-size: 1.1rem;
        }
        
        .light-mode .form-group input,
        .light-mode .form-group textarea {
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--light-border);
            color: var(--light-text);
        }
        
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(159, 122, 234, 0.3);
        }
        
        textarea {
            min-height: 180px;
            resize: vertical;
        }
        
        /* ===== COMMENT SECTION ===== */
        .comments-section {
            margin-top: 100px;
            grid-column: 1 / -1;
            position: relative;
            z-index: 2;
        }
        
        .comments-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 40px;
        }
        
        .comments-count {
            font-size: 1.2rem;
            color: var(--primary);
            background: rgba(159, 122, 234, 0.15);
            padding: 8px 20px;
            border-radius: 30px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .comments-count i {
            font-size: 1.1rem;
        }
        
        .comments-container {
            margin-top: 40px;
        }
        
        .comment-form {
            background: var(--glass);
            padding: 40px;
            border-radius: 20px;
            margin-bottom: 50px;
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            transform: translateY(50px);
            opacity: 0;
            transition: var(--transition);
        }
        
        .light-mode .comment-form {
            background: var(--light-glass);
            border: 1px solid var(--light-border);
            box-shadow: var(--light-shadow);
        }
        
        .comment-form.visible {
            transform: translateY(0);
            opacity: 1;
        }
        
        .comment-form h3 {
            color: var(--primary);
            font-size: 2rem;
            margin-bottom: 30px;
            text-shadow: var(--glow);
        }
        
        .comment-form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        
        .comment-form .form-group:last-child {
            grid-column: 1 / -1;
        }
        
        .comment-form .btn {
            margin-top: 20px;
        }
        
        .comments-list {
            display: grid;
            gap: 30px;
        }
        
        .comment {
            background: var(--glass);
            border-radius: 20px;
            padding: 30px;
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.05);
            transform: translateY(50px);
            opacity: 0;
            transition: var(--transition);
        }
        
        .light-mode .comment {
            background: var(--light-glass);
            border: 1px solid var(--light-border);
            box-shadow: var(--light-shadow);
        }
        
        .comment.visible {
            transform: translateY(0);
            opacity: 1;
        }
        
        .comment-header {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .comment-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            overflow: hidden;
            margin-right: 20px;
            border: 2px solid var(--primary);
            box-shadow: var(--glow);
        }
        
        .comment-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .comment-author {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 5px;
        }
        
        .comment-date {
            color: var(--primary);
            font-size: 0.9rem;
        }
        
        .comment-content {
            font-size: 1.1rem;
            line-height: 1.7;
        }
        
        .light-mode .comment-content {
            color: #2d3748;
        }
        
        .comment-actions {
            display: flex;
            gap: 15px;
            margin-top: 15px;
        }
        
        .comment-action {
            display: flex;
            align-items: center;
            gap: 5px;
            color: var(--primary);
            background: rgba(159, 122, 234, 0.15);
            padding: 5px 12px;
            border-radius: 15px;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .comment-action:hover {
            background: var(--primary);
            color: white;
        }
        
        /* Error message styles */
        .error-message {
            color: #ff6b6b;
            font-size: 0.9rem;
            margin-top: 5px;
            display: none;
        }
        
        .form-group.error .error-message {
            display: block;
        }
        
        .form-group.error input,
        .form-group.error textarea {
            border-color: #ff6b6b;
        }
        
        /* ===== FOOTER ===== */
        footer {
            background: rgba(6, 2, 37, 0.95);
            padding: 60px 0 30px;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            position: relative;
        }
        
        .light-mode footer {
            background: rgba(255, 255, 255, 0.95);
            border-top: 1px solid rgba(0, 0, 0, 0.05);
        }
        
        .footer-content {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .footer-logo {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        
        .light-mode .footer-logo {
            color: #1a202c;
        }
        
        .footer-logo span {
            color: var(--primary);
            text-shadow: var(--glow);
        }
        
        .light-mode .footer-logo span {
            text-shadow: none;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .footer-links a {
            color: var(--light);
            text-decoration: none;
            transition: var(--transition);
            font-size: 1.2rem;
            position: relative;
        }
        
        .light-mode .footer-links a {
            color: #1a202c;
        }
        
        .footer-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
            box-shadow: var(--glow);
        }
        
        .footer-links a:hover {
            color: var(--primary);
        }
        
        .footer-links a:hover::after {
            width: 100%;
        }
        
        .copyright {
            opacity: 0.7;
            font-size: 1rem;
            margin-top: 30px;
        }
        
        .light-mode .copyright {
            color: #4a5568;
        }
        
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 60px;
            height: 60px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            text-decoration: none;
            box-shadow: 0 5px 20px rgba(159, 122, 234, 0.6);
            transition: var(--transition);
            z-index: 999;
            opacity: 0;
            transform: translateY(20px);
        }
        
        .back-to-top.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .back-to-top:hover {
            transform: translateY(-10px) scale(1.1);
            box-shadow: 0 10px 30px rgba(159, 122, 234, 0.8);
        }
        
        /* ===== MODE TOGGLE ===== */
        .mode-toggle {
            position: fixed;
            bottom: 30px;
            left: 30px;
            width: 60px;
            height: 60px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
            transition: var(--transition);
            z-index: 999;
        }
        
        .mode-toggle:hover {
            transform: rotate(30deg) scale(1.1);
            box-shadow: 0 8px 25px rgba(159, 122, 234, 0.7);
        }
        
        .mode-toggle .sun {
            display: none;
        }
        
        .light-mode .mode-toggle .sun {
            display: block;
        }
        
        .light-mode .mode-toggle .moon {
            display: none;
        }
        
        
        .glow {
            animation: glow 3s infinite alternate;
        }
        
        @keyframes glow {
            0% { text-shadow: 0 0 10px rgba(184, 85, 250, 0.7); }
            100% { text-shadow: 0 0 20px rgba(184, 85, 250, 0.9), 0 0 30px rgba(184, 85, 250, 0.6); }
        }
        
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(50px);
            transition: opacity 1s ease, transform 1s ease;
        }
        
        .animate-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        .delay-1 { transition-delay: 0.2s; }
        .delay-2 { transition-delay: 0.4s; }
        .delay-3 { transition-delay: 0.6s; }
        .delay-4 { transition-delay: 0.8s; }
        .delay-5 { transition-delay: 1.0s; }
        .delay-6 { transition-delay: 1.2s; }
        .delay-7 { transition-delay: 1.4s; }
        .delay-8 { transition-delay: 1.6s; }
        .delay-9 { transition-delay: 1.8s; }
        .delay-10 { transition-delay: 2.0s; }
        .delay-11 { transition-delay: 2.2s; }
        
        /* New animations */
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        @keyframes slideInFromLeft {
            from { transform: translateX(-100px); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }
        
        @keyframes slideInFromRight {
            from { transform: translateX(100px); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }
        
        @keyframes scaleIn {
            from { transform: scale(0.8); opacity: 0; }
            to { transform: scale(1); opacity: 1; }
        }
        
        .fade-in {
            animation: fadeIn 1.2s ease forwards;
        }
        
        .slide-left {
            animation: slideInFromLeft 1s ease forwards;
        }
        
        .slide-right {
            animation: slideInFromRight 1s ease forwards;
        }
        
        .scale-in {
            animation: scaleIn 1s ease forwards;
        }
        
        .rotate-in {
            animation: rotateIn 1s ease forwards;
        }
        
        @keyframes rotateIn {
            from { transform: rotate(15deg) scale(0.8); opacity: 0; }
            to { transform: rotate(0) scale(1); opacity: 1; }
        }
        
        .pulse {
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }
        
        /* Parallax effect */
        .parallax-element {
            transition: transform 0.1s ease-out;
        }
        
        /* ===== BACKGROUND ELEMENTS ===== */
        .bg-element {
            position: absolute;
            border-radius: 50%;
            filter: blur(100px);
            z-index: 0;
            pointer-events: none;
            opacity: 0.4;
        }
        
        .bg-purple {
            width: 600px;
            height: 600px;
            background: rgba(159, 122, 234, 0.2);
            top: 10%;
            right: -100px;
            animation: floating 12s ease-in-out infinite;
        }
        
        .bg-blue {
            width: 500px;
            height: 500px;
            background: rgba(66, 153, 225, 0.2);
            bottom: 10%;
            left: -100px;
            animation: floating 14s ease-in-out infinite;
        }
        
        .bg-accent {
            width: 400px;
            height: 400px;
            background: rgba(217, 70, 239, 0.2);
            top: 40%;
            left: 10%;
            animation: floating 10s ease-in-out infinite;
        }
        
        .light-mode .bg-element {
            opacity: 0.2;
        }
        
        .particles {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
        }
        
        .particle {
            position: absolute;
            border-radius: 50%;
            background: var(--primary);
            opacity: 0.2;
            animation: floatParticle linear infinite;
        }
        
        @keyframes floatParticle {
            to {
                transform: translateY(-100px) rotate(360deg);
                opacity: 0;
            }
        }
        
        /* ===== PROGRESS BAR ===== */
        .progress-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: transparent;
            z-index: 1001;
        }
        
        .progress-bar {
            height: 5px;
            background: linear-gradient(to right, var(--primary), var(--accent));
            width: 0%;
            transition: width 0.2s ease-out;
        }
        
        /* ===== PRELOADER ===== */
        .preloader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--dark-1);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            transition: opacity 0.8s, visibility 0.8s;
        }
        
        .light-mode .preloader {
            background: var(--light-bg);
            position: fixed;
        }
        
        .preloader.hidden {
            opacity: 0;
            visibility: hidden;
        }
        
        .loader {
            width: 80px;
            height: 80px;
            border: 8px solid rgba(159, 122, 234, 0.2);
            border-top: 8px solid var(--primary);
            border-radius: 50%;
            animation: spin 1.5s linear infinite;
        }
        
        .preloader-text {
            margin-top: 20px;
            font-size: 1.5rem;
            font-weight: 600;
            letter-spacing: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        /* ===== TOAST NOTIFICATION ===== */
        .toast {
            position: fixed;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%) translateY(100px);
            background: rgba(25, 20, 45, 0.9);
            color: white;
            padding: 20px 35px;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            z-index: 10000;
            opacity: 0;
            transition: all 0.5s ease;
        }
        
        .light-mode .toast {
            background: rgba(255, 255, 255, 0.9);
            color: #1a202c;
            border: 1px solid rgba(0, 0, 0, 0.05);
        }
        
        .toast.show {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }
        
        .toast-content {
            display: flex;
            align-items: center;
            gap: 15px;
            justify-content: center;
        }
        
        .toast-content i {
            font-size: 1.8rem;
            position: relative;
            z-index: 2;
        }
        
        .toast.success .toast-content i {
            color: #4ade80;
        }
        
        .toast.error .toast-content i {
            color: #ff6b6b;
        }
        
        /* ===== CUSTOM CURSOR ===== */
        .cursor {
            position: fixed;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: transparent;
            border: 2px solid var(--primary);
            transform: translate(-50%, -50%);
            pointer-events: none;
            z-index: 9999;
            mix-blend-mode: difference;
            transition: width 0.3s, height 0.3s, border-width 0.3s;
            box-shadow: 0 0 10px var(--primary);
        }
        
        .cursor-follower {
            position: fixed;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            pointer-events: none;
            z-index: 9998;
            transition: transform 0.2s;
            mix-blend-mode: difference;
        }
        
        .cursor-active {
            width: 40px;
            height: 40px;
            border-width: 1px;
            background: rgba(159, 122, 234, 0.2);
        }
        
        .cursor-click {
            animation: cursorClick 0.5s;
        }
        
        @keyframes cursorClick {
            0% { transform: translate(-50%, -50%) scale(1); }
            50% { transform: translate(-50%, -50%) scale(0.7); }
            100% { transform: translate(-50%, -50%) scale(1); }
        }
        
        /* ===== RESPONSIVE DESIGN ===== */
        @media (max-width: 1200px) {
            .section-title {
                font-size: 3.5rem;
            }
            
            .hero-content h1 {
                font-size: 4rem;
            }
        }
        
        @media (max-width: 992px) {
            .hero-content h1 {
                font-size: 3.5rem;
            }
            
            .about-container,
            .contact-container {
                grid-template-columns: 1fr;
            }
            
            .about-image {
                order: -1;
            }
            
            .timeline::before {
                left: 30px;
            }
            
            .timeline-item {
                width: 100%;
                margin-left: 70px;
            }
            
            .timeline-item:nth-child(even) {
                left: 0;
            }
            
            .timeline-content::before {
                left: -15px;
                border-width: 15px 15px 15px 0;
                border-color: transparent var(--glass) transparent transparent;
                right: auto;
            }
            
            .light-mode .timeline-content::before {
                border-color: transparent var(--light-glass) transparent transparent;
            }
            
            .timeline-dot {
                left: 20px;
                right: auto;
            }
            
            .tech-grid {
                grid-template-columns: repeat(2, 1fr);
                max-width: 700px;
                margin: 50px auto 0;
            }
            
            .comment-form-grid {
                grid-template-columns: 1fr;
            }
            
        
        }
        
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 70%;
                height: 100vh;
                background: rgba(15, 23, 42, 0.95);
                backdrop-filter: blur(10px);
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 100px;
                transition: var(--transition);
                z-index: 1000;
                overflow-y: auto;
            }
            
            .light-mode .nav-links {
                background: rgba(249, 250, 251, 0.95);
            }
            
            .nav-links.active {
                right: 0;
            }
            
            .hamburg {
                display: block;
            }
            
            .hero-container {
                flex-direction: column;
                text-align: center;
                padding-top: 100px;
            }
            
            .hero-content {
                margin-bottom: 50px;
            }
            
            .btn-group {
                justify-content: center;
            }
            
            .section-title {
                font-size: 3rem;
            }
            
            .projects-grid,
            .services-grid,
            .education-container {
                grid-template-columns: 1fr;
            }
            
            .hero-stats {
                justify-content: center;
            }
        }
        
        @media (max-width: 576px) {
            .hero-content h1 {
                font-size: 2.8rem;
            }
            
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
            
            .section-title {
                font-size: 2.5rem;
            }
            
            .testimonial {
                padding: 30px 20px;
            }
            
            .testimonial-content {
                font-size: 1.1rem;
            }
            
            .contact-container {
                grid-template-columns: 1fr;
            }
            
            .tech-grid {
                grid-template-columns: 1fr;
            }
            
            .comment-form {
                padding: 20px;
            }
            
            .comments-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
        }