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

        body {
            font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #fafafa;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navigation */
        nav {
            background: #ffffff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid #e0e0e0;
        }

        nav .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 20px;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: bold;
            color: #2c3e50;
        }

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

        .nav-links a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: color 0.3s ease;
            cursor: pointer;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #6b8e23;
        }

        /* Main Content */
        main {
            margin-top: 80px;
        }

        .section {
            display: none;
            padding: 4rem 0;
            min-height: calc(100vh - 80px);
        }

        .section.active {
            display: block;
        }

        .section h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            color: #2c3e50;
        }

        .section h2 {
            font-size: 2.5rem;
            margin-bottom: 2rem;
            color: #2c3e50;
            text-align: center;
        }

        .section p {
            font-size: 1.1rem;
            margin-bottom: 1.5rem;
            color: #666;
            max-width: 800px;
        }

        /* About Section */
        .hero {
            text-align: center;
            padding: 6rem 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 60vh;
        }

        .hero h1 {
            font-size: 4rem;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #6b8e23, #556b2f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-align: center;
        }

        .hero .subtitle {
            font-size: 1.5rem;
            color: #666;
            margin-bottom: 2rem;
            text-align: center;
        }

        .hero .description {
            max-width: 600px;
            margin: 0 auto 2rem;
            font-size: 1.1rem;
            line-height: 1.8;
            text-align: center;
        }

        .skills {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin-top: 3rem;
        }

        .skill-card {
            background: #fff;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            text-align: center;
            transition: transform 0.3s ease;
        }

        .skill-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        }

        .skill-card h3 {
            color: #2c3e50;
            margin-bottom: 0.5rem;
        }

        .skill-card p {
            color: #666;
        }

        /* Projects Section */
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .project-section {
            margin-bottom: 4rem;
        }

        .project-section:last-child {
            margin-bottom: 0;
        }

        .project-section h3 {
            font-size: 1.8rem;
            color: #2c3e50;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #6b8e23;
            display: inline-block;
        }

        .project-card {
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .project-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 8px 30px rgba(0,0,0,0.15);
        }

        .project-image {
            height: 200px;
            background: linear-gradient(135deg, #6b8e23, #556b2f);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2rem;
            font-weight: bold;
        }

        .project-content {
            padding: 1.5rem;
        }

        .project-content h4 {
            color: #2c3e50;
            margin-bottom: 0.5rem;
            font-size: 1.3rem;
        }

        .project-content p {
            color: #666;
            margin-bottom: 1rem;
            line-height: 1.6;
        }

        .project-tech {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .tech-tag {
            background: #f4f6f0;
            color: #6b8e23;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
        }

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

        .btn {
            padding: 0.5rem 1rem;
            border: none;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
            display: inline-block;
            text-align: center;
        }

        .btn-primary {
            background: #6b8e23;
            color: white;
        }

        .btn-primary:hover {
            background: #556b2f;
        }

        .btn-outline {
            background: transparent;
            color: #6b8e23;
            border: 2px solid #6b8e23;
        }

        .btn-outline:hover {
            background: #6b8e23;
            color: white;
        }

        /* Contact Section */
        .contact-content {
            max-width: 600px;
            margin: 0 auto;
            text-align: center;
        }

        .contact-info {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }

        .contact-item {
            background: #fff;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }

        .contact-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 25px rgba(0,0,0,0.15);
        }

        .contact-item h3 {
            color: #2c3e50;
            margin-bottom: 1rem;
        }

        .contact-item p {
            color: #666;
        }

        .contact-item a {
            color: #6b8e23;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .contact-item a:hover {
            color: #556b2f;
            text-decoration: underline;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-links {
                gap: 1rem;
            }

            .hero {
                padding: 4rem 0;
                text-align: center;
            }

            .hero h1 {
                font-size: 2.5rem;
                text-align: center;
            }

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

            .hero .description {
                text-align: center;
                padding: 0 1rem;
            }

            .section h2 {
                font-size: 2rem;
            }

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

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

        @media (max-width: 480px) {
            .nav-links {
                gap: 0.5rem;
            }

            .nav-links a {
                font-size: 0.9rem;
            }

            .hero {
                padding: 3rem 0;
                text-align: center;
            }

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

            .hero .subtitle {
                font-size: 1rem;
                text-align: center;
            }

            .hero .description {
                font-size: 1rem;
                text-align: center;
                padding: 0 1rem;
                line-height: 1.6;
            }

            .container {
                padding: 0 15px;
            }
        }