:root {
            --primary: #2c3e50;
            --secondary: #34495e;
            --accent: #3498db;
            --text: #333;
            --light: #ecf0f1;
            --white: #fff;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

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

        body {
            font-family: 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: var(--text);
            background-color: var(--light);
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: var(--accent);
            transition: var(--transition);
        }

        a:hover {
            opacity: 0.8;
        }

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

        /* Header */
        header {
            background-color: var(--white);
            box-shadow: var(--shadow);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }

        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
        }

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

        /* Navigation */
        nav ul {
            display: flex;
            list-style: none;
        }

        nav ul li {
            margin-left: 30px;
        }

        nav ul li a {
            color: var(--primary);
            font-weight: 500;
            position: relative;
        }

        nav ul li a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            background: var(--accent);
            bottom: -5px;
            left: 0;
            transition: var(--transition);
        }

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

        /* Hamburger Menu */
        .hamburger {
            display: none;
            cursor: pointer;
            width: 24px;
            height: 16px;
            position: relative;
            transform: rotate(0deg);
            transition: var(--transition);
        }

        .hamburger span {
            display: block;
            position: absolute;
            height: 2px;
            width: 100%;
            background: var(--primary);
            border-radius: 2px;
            opacity: 1;
            left: 0;
            transform: rotate(0deg);
            transition: .25s ease-in-out;
        }

        .hamburger span:nth-child(1) {
            top: 0;
        }

        .hamburger span:nth-child(2), .hamburger span:nth-child(3) {
            top: 7px;
        }

        .hamburger span:nth-child(4) {
            top: 14px;
        }

        .hamburger.open span:nth-child(1) {
            top: 7px;
            width: 0%;
            left: 50%;
        }

        .hamburger.open span:nth-child(2) {
            transform: rotate(45deg);
        }

        .hamburger.open span:nth-child(3) {
            transform: rotate(-45deg);
        }

        .hamburger.open span:nth-child(4) {
            top: 7px;
            width: 0%;
            left: 50%;
        }

        /* Hero Section */
        .hero {
            padding: 150px 0 80px;
            text-align: center;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: var(--white);
        }

        .avatar {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            object-fit: cover;
            border: 5px solid var(--white);
            box-shadow: var(--shadow);
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: 42px;
            margin-bottom: 15px;
        }

        .hero p {
            font-size: 18px;
            max-width: 700px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }

        .social-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 30px;
        }

        .social-link {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.1);
            padding: 10px 20px;
            border-radius: 30px;
            color: var(--white);
        }

        .social-link i {
            margin-right: 8px;
            font-size: 18px;
        }

        /* Main Content */
        .main {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
            font-size: 32px;
            color: var(--primary);
            position: relative;
        }

        .section-title:after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: var(--accent);
            margin: 15px auto 0;
        }

        /* Blog Posts */
        .posts {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }

        .post-card {
            background: var(--white);
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .post-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }

        .post-image {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .post-content {
            padding: 20px;
        }

        .post-date {
            font-size: 14px;
            color: #7f8c8d;
            margin-bottom: 10px;
        }

        .post-title {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--primary);
        }

        .post-excerpt {
            color: #666;
            margin-bottom: 15px;
        }

        .read-more {
            display: inline-block;
            font-weight: 500;
        }

        /* About Section */
        .about {
            background: var(--white);
            padding: 80px 0;
        }

        .about-container {
            display: flex;
            align-items: center;
            gap: 50px;
        }

        .about-image {
            flex: 1;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .about-image img {
            width: 100%;
            height: auto;
            display: block;
        }

        .about-content {
            flex: 1;
        }

        .about-content h2 {
            font-size: 32px;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .about-content p {
            margin-bottom: 20px;
            color: #666;
        }

        .contact-info {
            margin-top: 30px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }

        .contact-item i {
            width: 40px;
            height: 40px;
            background: var(--accent);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            font-size: 18px;
        }

        /* Footer */
        footer {
            background: var(--primary);
            color: var(--white);
            padding: 50px 0 20px;
            text-align: center;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            margin-bottom: 30px;
        }

        .footer-links a {
            color: var(--white);
            margin: 0 15px;
            opacity: 0.8;
        }

        .footer-links a:hover {
            opacity: 1;
        }

        .copyright {
            opacity: 0.7;
            font-size: 14px;
        }

        /* Mobile Menu */
        .mobile-menu {
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            background: var(--white);
            box-shadow: var(--shadow);
            padding: 20px 0;
            transform: translateY(-150%);
            opacity: 0;
            transition: var(--transition);
            z-index: 999;
        }

        .mobile-menu.active {
            transform: translateY(0);
            opacity: 1;
        }

        .mobile-menu ul {
            list-style: none;
        }

        .mobile-menu ul li {
            margin-bottom: 15px;
        }

        .mobile-menu ul li a {
            display: block;
            padding: 10px 20px;
            color: var(--primary);
            font-weight: 500;
        }

        /* Dark Mode Toggle */
        .theme-toggle {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow);
            z-index: 100;
            border: none;
            outline: none;
        }

        .theme-toggle i {
            font-size: 20px;
        }

        /* Responsive */
        @media (max-width: 992px) {
            .about-container {
                flex-direction: column;
            }
            
            .about-image {
                margin-bottom: 30px;
            }
        }

        @media (max-width: 768px) {
            nav ul {
                display: none;
            }

            .hamburger {
                display: block;
            }

            .hero h1 {
                font-size: 32px;
            }

            .hero p {
                font-size: 16px;
            }

            .social-links {
                flex-direction: column;
                align-items: center;
            }

            .social-link {
                width: 100%;
                max-width: 250px;
                justify-content: center;
            }
        }