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

        :root {
            --primary-color: #2563eb;
            --secondary-color: #1e40af;
            --accent-color: #3b82f6;
            --text-primary: #1f2937;
            --text-secondary: #6b7280;
            --bg-light: #f9fafb;
            --bg-white: #ffffff;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-primary);
            overflow-x: hidden;
        }

        /* Navigation */
        nav {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            padding: 1rem 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }

        nav .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: bold;
            color: var(--primary-color);
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-primary);
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav-links a:hover {
            color: var(--primary-color);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-primary);
        }

        /* Hero Section */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            text-align: center;
            padding: 2rem;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,96C1248,75,1344,53,1392,42.7L1440,32L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
            background-size: cover;
            opacity: 0.3;
        }

        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1rem;
            animation: fadeInUp 1s ease-out;
        }

        .hero .subtitle {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            opacity: 0.95;
            animation: fadeInUp 1s ease-out 0.2s both;
        }

        .hero .typing-text {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            min-height: 2rem;
            animation: fadeInUp 1s ease-out 0.4s both;
        }

        .hero .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            animation: fadeInUp 1s ease-out 0.6s both;
        }

        .btn {
            padding: 0.75rem 2rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            display: inline-block;
        }

        .btn-primary {
            background: white;
            color: var(--primary-color);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-secondary {
            background: transparent;
            color: white;
            border: 2px solid white;
        }

        .btn-secondary:hover {
            background: white;
            color: var(--primary-color);
        }

        /* Section Styles */
        section {
            padding: 5rem 2rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 3rem;
            color: var(--text-primary);
            position: relative;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary-color);
            margin: 1rem auto;
            border-radius: 2px;
        }

        /* About Section */
        #about {
            background: var(--bg-light);
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .about-text p {
            margin-bottom: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

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

        .stat-card {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: transform 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-card .number {
            font-size: 2rem;
            font-weight: bold;
            color: var(--primary-color);
        }

        .stat-card .label {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* Education Section */
        .education-grid {
            display: grid;
            gap: 2rem;
        }

        .education-card {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: var(--shadow);
            border-left: 4px solid var(--primary-color);
            transition: all 0.3s;
        }

        .education-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateX(5px);
        }

        .education-card h3 {
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }

        .education-card .institute {
            color: var(--text-primary);
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .education-card .details {
            display: flex;
            justify-content: space-between;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* Projects Section */
        #projects {
            background: var(--bg-light);
        }

        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .project-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.3s;
        }

        .project-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-10px);
        }

        .project-header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 2rem;
            position: relative;
        }

        .project-header h3 {
            font-size: 1.3rem;
            margin-bottom: 0.5rem;
        }

        .project-date {
            font-size: 0.85rem;
            opacity: 0.9;
        }

        .project-body {
            padding: 1.5rem;
        }

        .project-body ul {
            list-style: none;
            margin-bottom: 1rem;
        }

        .project-body ul li {
            padding: 0.5rem 0;
            padding-left: 1.5rem;
            position: relative;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .project-body ul li::before {
            content: '▹';
            position: absolute;
            left: 0;
            color: var(--primary-color);
            font-weight: bold;
        }

        .tech-stack {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 1rem;
        }

        .tech-tag {
            background: var(--bg-light);
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--primary-color);
            border: 1px solid var(--primary-color);
        }

        .project-link {
            display: inline-block;
            margin-top: 1rem;
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
        }

        .project-link:hover {
            gap: 0.5rem;
        }

        /* Skills Section */
        .skills-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }

        .skill-category {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: var(--shadow);
            transition: all 0.3s;
        }

        .skill-category:hover {
            box-shadow: var(--shadow-lg);
        }

        .skill-category h3 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

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

        .skill-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .skill-item {
            background: var(--bg-light);
            padding: 0.5rem 1rem;
            border-radius: 25px;
            font-size: 0.9rem;
            color: var(--text-primary);
            transition: all 0.3s;
        }

        .skill-item:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }

        /* Achievements Section */
        #achievements {
            background: var(--bg-light);
        }

        .achievements-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .achievement-card {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: all 0.3s;
        }

        .achievement-card:hover {
            box-shadow: var(--shadow-lg);
            transform: scale(1.05);
        }

        .achievement-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }

        .achievement-card h3 {
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .achievement-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .achievement-year {
            display: inline-block;
            margin-top: 1rem;
            background: var(--bg-light);
            padding: 0.25rem 1rem;
            border-radius: 20px;
            color: var(--primary-color);
            font-weight: 600;
        }

        /* Contact Section */
        #contact {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
        }

        #contact .section-title {
            color: white;
        }

        #contact .section-title::after {
            background: white;
        }

        .contact-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: start;
        }

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

        .contact-item {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .contact-item i {
            font-size: 2rem;
            background: rgba(255, 255, 255, 0.2);
            padding: 1rem;
            border-radius: 50%;
        }

        .contact-item-info h3 {
            margin-bottom: 0.25rem;
            font-size: 1.1rem;
        }

        .contact-item-info a {
            color: white;
            text-decoration: none;
            opacity: 0.9;
        }

        .contact-item-info a:hover {
            opacity: 1;
            text-decoration: underline;
        }

        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 2rem;
        }

        .social-link {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            color: white;
            font-size: 1.5rem;
            transition: all 0.3s;
            text-decoration: none;
        }

        .social-link:hover {
            background: white;
            color: var(--primary-color);
            transform: translateY(-5px);
        }

        .contact-form {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            padding: 2rem;
            border-radius: 15px;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 0.75rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            font-family: inherit;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        .submit-btn {
            width: 100%;
            padding: 1rem;
            background: white;
            color: var(--primary-color);
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
        }

        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

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

        footer p {
            opacity: 0.8;
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s ease-out;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }

            .nav-links {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 1rem 2rem;
                box-shadow: var(--shadow);
                display: none;
            }

            .nav-links.active {
                display: flex;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero .subtitle {
                font-size: 1.2rem;
            }

            .about-content,
            .contact-content {
                grid-template-columns: 1fr;
            }

            .stats {
                grid-template-columns: 1fr;
            }

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

            .skills-container {
                grid-template-columns: 1fr;
            }
        }

        /* Scroll to top button */
        .scroll-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 50px;
            height: 50px;
            background: var(--primary-color);
            color: white;
            border: none;
            border-radius: 50%;
            font-size: 1.5rem;
            cursor: pointer;
            display: none;
            align-items: center;
            justify-content: center;
            transition: all 0.3s;
            z-index: 999;
        }

        .scroll-top:hover {
            background: var(--secondary-color);
            transform: translateY(-5px);
        }

        .scroll-top.visible {
            display: flex;
        }