:root {
            --primary: #4e73df;
            --dark: #2e384d;
            --light: #f8f9fa;
            --accent: #f6c23e;
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f5f7ff;
            color: var(--dark);
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header Styles */
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        .header-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .logo span {
            color: var(--primary);
        }
        
        .logo i {
            font-size: 1.2rem;
        }
        
        /* Navigation */
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 30px;
        }
        
        nav ul li a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        
        nav ul li a:hover {
            color: var(--primary);
        }
        
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }
        
        nav ul li a:hover::after {
            width: 100%;
        }
        
        /* Mobile Menu */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--dark);
        }
        
        /* Hero Section */
        .hero {
            padding: 150px 0 100px;
            text-align: center;
            background: linear-gradient(135deg, #f5f7ff 0%, #e8ecff 100%);
        }
        
        .hero-content {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            color: var(--dark);
        }
        
        .hero h1 span {
            color: var(--primary);
        }
        
        .hero p {
            font-size: 1.2rem;
            color: #555;
            margin-bottom: 30px;
        }
        
        .hero-img {
            width: 200px;
            height: 200px;
            border-radius: 50%;
            object-fit: cover;
            border: 5px solid white;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            margin-bottom: 30px;
        }
        
        .btn {
            display: inline-block;
            padding: 12px 30px;
            background-color: var(--primary);
            color: white;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid var(--primary);
        }
        
        .btn:hover {
            background-color: transparent;
            color: var(--primary);
        }
        
        .btn-outline {
            background-color: transparent;
            color: var(--primary);
            margin-left: 15px;
        }
        
        .btn-outline:hover {
            background-color: var(--primary);
            color: white;
        }
        
        /* About Section */
        .section {
            padding: 100px 0;
            background-color: white;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 15px;
        }
        
        .section-title p {
            color: #777;
            max-width: 700px;
            margin: 0 auto;
        }
        
        .about-content {
            display: flex;
            align-items: center;
            gap: 50px;
        }
        
        .about-img {
            flex: 1;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        
        .about-img img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }
        
        .about-img img:hover {
            transform: scale(1.05);
        }
        
        .about-text {
            flex: 1;
        }
        
        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--dark);
        }
        
        .about-text p {
            margin-bottom: 20px;
            color: #555;
        }
        
        .skills {
            margin-top: 30px;
        }
        
        .skills h4 {
            margin-bottom: 15px;
        }
        
        .skill-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        
        .skill-tag {
            background-color: #e0e7ff;
            color: var(--primary);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
        }
        
        /* Projects Section */
        .projects {
            background-color: #f8f9fa;
        }
        
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .project-card {
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        
        .project-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        
        .project-img {
            height: 200px;
            overflow: hidden;
        }
        
        .project-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .project-card:hover .project-img img {
            transform: scale(1.1);
        }
        
        .project-content {
            padding: 20px;
        }
        
        .project-content h3 {
            margin-bottom: 10px;
            color: var(--dark);
        }
        
        .project-content p {
            color: #666;
            margin-bottom: 15px;
        }
        
        .project-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 15px;
        }
        
        .project-tag {
            background-color: #f0f0f0;
            color: #555;
            padding: 3px 10px;
            border-radius: 5px;
            font-size: 0.8rem;
        }
        
        .project-links {
            display: flex;
            gap: 10px;
        }
        
        .project-links a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 5px;
            transition: var(--transition);
        }
        
        .project-links a:hover {
            color: var(--dark);
        }
        
        /* Education Section */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .timeline::before {
            content: '';
            position: absolute;
            width: 2px;
            background-color: #ddd;
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -1px;
        }
        
        .timeline-item {
            padding: 20px 40px;
            position: relative;
            width: 50%;
        }
        
        .timeline-item:nth-child(odd) {
            left: 0;
        }
        
        .timeline-item:nth-child(even) {
            left: 50%;
        }
        
        .timeline-content {
            padding: 20px;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .timeline-date {
            position: absolute;
            top: 22px;
            width: 100px;
            color: var(--primary);
            font-weight: 600;
        }
        
        .timeline-item:nth-child(odd) .timeline-date {
            right: -120px;
            text-align: left;
        }
        
        .timeline-item:nth-child(even) .timeline-date {
            left: -120px;
            text-align: right;
        }
        
        .timeline-dot {
            position: absolute;
            width: 20px;
            height: 20px;
            background-color: white;
            border: 4px solid var(--primary);
            border-radius: 50%;
            top: 26px;
        }
        
        .timeline-item:nth-child(odd) .timeline-dot {
            right: -10px;
        }
        
        .timeline-item:nth-child(even) .timeline-dot {
            left: -10px;
        }
        
        .timeline-content h3 {
            margin-bottom: 10px;
            color: var(--dark);
        }
        
        .timeline-content p {
            color: #666;
        }
        
        .education {
            background-color: #f8f9fa;
        }
        
        /* Contact Section */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        
        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .contact-card {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 15px;
            background-color: #f8f9fa;
            border-radius: 10px;
            transition: var(--transition);
        }
        
        .contact-card:hover {
            background-color: #e9ecef;
        }
        
        .contact-icon {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
        }
        
        .contact-text h3 {
            margin-bottom: 5px;
            color: var(--dark);
        }
        
        .contact-text p {
            color: #666;
        }
        
        .contact-form form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        
        .form-group label {
            font-weight: 600;
            color: var(--dark);
        }
        
        .form-group input,
        .form-group textarea {
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            transition: var(--transition);
        }
        
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(78, 115, 223, 0.25);
        }
        
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        
        /* Footer */
        footer {
            background-color: var(--dark);
            color: white;
            padding: 50px 0 20px;
        }
        
        .footer-content {
            display: flex;
            justify-content: space-between;
            margin-bottom: 30px;
        }
        
        .footer-col {
            flex: 1;
        }
        
        .footer-col h3 {
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        
        .footer-col p {
            color: #bbb;
            margin-bottom: 15px;
            max-width: 300px;
        }
        
        .social-links {
            display: flex;
            gap: 15px;
        }
        
        .social-links a {
            color: white;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        
        .social-links a:hover {
            color: var(--accent);
        }
        
        .quick-links ul {
            list-style: none;
        }
        
        .quick-links ul li {
            margin-bottom: 10px;
        }
        
        .quick-links ul li a {
            color: #bbb;
            text-decoration: none;
            transition: var(--transition);
        }
        
        .quick-links ul li a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #bbb;
            font-size: 0.9rem;
        }
        
        /* Responsive Styles */
        @media (max-width: 992px) {
            .about-content {
                flex-direction: column;
            }
            
            .about-img {
                max-width: 500px;
                margin: 0 auto;
            }
            
            .contact-grid {
                grid-template-columns: 1fr;
            }
            
            .timeline::before {
                left: 25px;
            }
            
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 0;
            }
            
            .timeline-item:nth-child(even) {
                left: 0;
            }
            
            .timeline-dot {
                left: 15px;
            }
            
            .timeline-item:nth-child(odd) .timeline-date,
            .timeline-item:nth-child(even) .timeline-date {
                left: -70px;
                right: auto;
                text-align: right;
                width: 60px;
            }
        }
        
        @media (max-width: 768px) {
            nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                background-color: white;
                box-shadow: 0 10px 10px rgba(0,0,0,0.1);
                transition: var(--transition);
            }
            
            nav.active {
                left: 0;
            }
            
            nav ul {
                flex-direction: column;
                padding: 20px;
            }
            
            nav ul li {
                margin: 0 0 15px 0;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .footer-content {
                flex-direction: column;
                gap: 30px;
            }
        }
        
        @media (max-width: 576px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .btn {
                width: 100%;
                margin-bottom: 10px;
            }
            
            .btn-outline {
                margin-left: 0;
            }
            
            .projects-grid {
                grid-template-columns: 1fr;
            }
        }
        
        /* Animation */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .animate {
            opacity: 0;
            animation: fadeIn 0.8s forwards;
        }
        
        .delay-1 { animation-delay: 0.2s; }
        .delay-2 { animation-delay: 0.4s; }
        .delay-3 { animation-delay: 0.6s; }
        .delay-4 { animation-delay: 0.8s; }