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

        body {
            font-family: var(--font-family-body);
            background: var(--color-bg-primary);
            color: var(--color-text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Enhanced network pattern background */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image:
                radial-gradient(circle at 20% 30%, rgba(var(--color-brand-accent-rgb), 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(var(--color-brand-accent-rgb), 0.12) 0%, transparent 50%),
                radial-gradient(circle at 40% 80%, rgba(var(--color-brand-accent-rgb), 0.08) 0%, transparent 50%),
                radial-gradient(circle at 60% 20%, rgba(var(--color-brand-accent-rgb), 0.1) 0%, transparent 50%);
            pointer-events: none;
            z-index: -1;
        }

        /* Header */
        .header {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(var(--color-bg-primary-rgb), 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(var(--color-bg-tertiary-rgb), 0.5);
            z-index: 1000;
            padding: var(--space-md) 0;
        }

        .nav {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 var(--space-xl);
        }

        /* Mobile menu toggle */
        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            padding: 0.5rem;
            background: none;
            border: none;
        }

        .mobile-menu-toggle span {
            width: 25px;
            height: 3px;
            background: var(--color-text-inverse);
            margin: 3px 0;
            transition: 0.3s;
            border-radius: 2px;
        }

        .mobile-menu-toggle span.active:nth-child(1) {
            transform: rotate(-45deg) translate(-5px, 6px);
        }

        .mobile-menu-toggle span.active:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-toggle span.active:nth-child(3) {
            transform: rotate(45deg) translate(-5px, -6px);
        }

        .logo {
            font-size: var(--font-size-xl);
            font-weight: var(--font-weight-bold);
            color: var(--color-text-inverse);
            text-decoration: none;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: var(--space-xl);
        }

        .nav-links a {
            color: var(--color-text-inverse);
            text-decoration: none;
            font-weight: var(--font-weight-medium);
            transition: color 0.2s;
        }

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

        /* User profile section */
        .user-section {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
        }

        .profile-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-bg-tertiary);
            border: 1px solid var(--color-brand-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-brand-accent);
            font-size: var(--font-size-sm);
        }

        /* Main Container */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-xl);
        }

        /* Enhanced Hero Section */
        .hero {
            padding: var(--space-3xl) var(--space-xl) var(--space-2xl);
            text-align: center;
            background: radial-gradient(ellipse at center, rgba(var(--color-brand-accent-rgb), 0.12) 0%, transparent 70%);
            position: relative;
            min-height: 60vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .hero h1 {
            font-size: var(--font-size-5xl);
            font-weight: var(--font-weight-extrabold);
            margin-bottom: var(--space-md);
            color: var(--color-text-inverse);
            line-height: 1.1;
        }

        .hero-subtitle {
            font-size: var(--font-size-lg);
            color: var(--color-text-secondary);
            margin-bottom: var(--space-2xl);
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        /* Enhanced Search Bar */
        .search-section {
            margin-bottom: var(--space-2xl);
        }

        .search-container {
            max-width: 500px;
            margin: 0 auto;
            position: relative;
        }

        .search-input {
            width: 100%;
            padding: var(--space-lg) var(--space-xl) var(--space-lg) 3rem;
            background: var(--color-bg-secondary);
            border: 1px solid rgba(var(--color-brand-accent-rgb), 0.3);
            border-radius: var(--radius-lg);
            color: var(--color-text-primary);
            font-size: var(--font-size-base);
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .search-input:focus {
            outline: none;
            border-color: var(--color-brand-accent);
            box-shadow: 0 0 0 3px rgba(var(--color-brand-accent-rgb), 0.1);
        }

        .search-input::placeholder {
            color: var(--color-text-muted);
        }

        .search-icon {
            position: absolute;
            left: var(--space-md);
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-text-muted);
            font-size: var(--font-size-lg);
        }

        /* Enhanced Category Buttons */
        .category-section {
            margin-bottom: var(--space-3xl);
        }

        .category-buttons {
            display: flex;
            justify-content: center;
            gap: var(--space-md);
            flex-wrap: wrap;
            padding: 0 var(--space-md);
        }

        .category-btn {
            padding: var(--space-sm) var(--space-lg);
            background: transparent;
            border: 1px solid rgba(var(--color-brand-accent-rgb), 0.3);
            border-radius: var(--radius-xl);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: var(--font-weight-medium);
            font-size: var(--font-size-sm);
        }

        .category-btn:hover {
            border-color: var(--color-brand-accent);
            color: var(--color-text-primary);
        }

        .category-btn.active {
            background: var(--color-brand-accent);
            border-color: var(--color-brand-accent);
            color: var(--color-text-inverse);
        }

        /* Content Sections */
        .content-section {
            padding: var(--space-2xl) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--space-2xl);
        }

        .section-title {
            font-size: var(--font-size-4xl);
            font-weight: var(--font-weight-bold);
            margin-bottom: var(--space-md);
            color: var(--color-text-inverse);
        }

        .section-subtitle {
            font-size: var(--font-size-lg);
            color: var(--color-text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Enhanced Blog Grid */
        .blog-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: var(--space-xl);
            margin-bottom: var(--space-3xl);
        }

        /* Enhanced Blog Cards */
        .blog-card {
            background: var(--color-bg-secondary);
            border: 1px solid rgba(var(--color-brand-accent-rgb), 0.2);
            border-radius: var(--radius-lg);
            padding: var(--space-xl);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .blog-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--color-brand-accent), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .blog-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(var(--color-brand-accent-rgb), 0.4);
        }

        .blog-card:hover::before {
            opacity: 1;
        }

        .blog-meta {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            margin-bottom: var(--space-md);
            font-size: var(--font-size-sm);
        }

        .blog-date {
            color: var(--color-text-muted);
        }

        .blog-category {
            background: var(--color-brand-accent);
            color: var(--color-text-inverse);
            padding: var(--space-xs) var(--space-sm);
            border-radius: var(--radius-md);
            font-size: var(--font-size-xs);
            font-weight: var(--font-weight-medium);
        }

        .blog-title {
            font-size: var(--font-size-xl);
            font-weight: var(--font-weight-bold);
            margin-bottom: var(--space-md);
            color: var(--color-text-inverse);
            line-height: 1.3;
        }

        .blog-excerpt {
            color: var(--color-text-secondary);
            margin-bottom: var(--space-lg);
            line-height: 1.6;
        }

        .read-more {
            color: var(--color-brand-accent);
            text-decoration: none;
            font-weight: var(--font-weight-medium);
            transition: color 0.2s;
        }

        .read-more:hover {
            color: var(--color-brand-accent-hover);
        }

        /* Enhanced Newsletter Section */
        .newsletter-section {
            background: var(--color-bg-secondary);
            border: 1px solid rgba(var(--color-brand-accent-rgb), 0.2);
            border-radius: var(--radius-lg);
            padding: var(--space-2xl);
            text-align: center;
            margin-bottom: var(--space-3xl);
            position: relative;
            overflow: hidden;
        }

        .newsletter-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at center, rgba(var(--color-brand-accent-rgb), 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .newsletter-content {
            position: relative;
            z-index: 1;
        }

        .newsletter-title {
            font-size: var(--font-size-3xl);
            font-weight: var(--font-weight-bold);
            margin-bottom: var(--space-md);
            color: var(--color-text-inverse);
        }

        .newsletter-description {
            color: var(--color-text-secondary);
            margin-bottom: var(--space-xl);
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .newsletter-form {
            display: flex;
            gap: var(--space-md);
            max-width: 400px;
            margin: 0 auto;
        }

        .newsletter-input {
            flex: 1;
            padding: var(--space-md) var(--space-lg);
            background: var(--color-bg-primary);
            border: 1px solid rgba(var(--color-text-muted), 0.3);
            border-radius: var(--radius-md);
            color: var(--color-text-primary);
            font-size: var(--font-size-base);
        }

        .newsletter-input:focus {
            outline: none;
            border-color: var(--color-brand-accent);
        }

        .newsletter-input::placeholder {
            color: var(--color-text-muted);
        }

        .newsletter-btn {
            padding: var(--space-md) var(--space-xl);
            background: var(--color-brand-accent);
            color: var(--color-text-inverse);
            border: none;
            border-radius: var(--radius-md);
            cursor: pointer;
            font-weight: var(--font-weight-semibold);
            transition: background-color 0.2s;
        }

        .newsletter-btn:hover {
            background: var(--color-brand-accent-hover);
        }

        /* Footer */
        .footer {
            background: var(--color-bg-primary);
            border-top: 1px solid var(--color-bg-tertiary);
            padding: var(--space-2xl) var(--space-xl);
            text-align: center;
        }

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

        .footer-links {
            display: flex;
            justify-content: center;
            gap: var(--space-xl);
            margin-bottom: var(--space-xl);
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--color-text-secondary);
            text-decoration: none;
            font-weight: var(--font-weight-medium);
        }

        .footer-links a:hover {
            color: var(--color-brand-accent);
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: var(--font-size-4xl);
            }

            .nav {
                padding: 0 1rem;
            }

            .mobile-menu-toggle {
                display: flex;
            }

            .nav-links {
                position: fixed;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(var(--color-bg-primary-rgb), 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 2rem;
                transform: translateY(-100%);
                transition: transform 0.3s ease;
                z-index: 999;
                gap: 0;
            }

            .nav-links.active {
                transform: translateY(0);
            }

            .nav-links li {
                margin: 1rem 0;
            }

            .nav-links a {
                font-size: 1.2rem;
                padding: 1rem;
                display: block;
                text-align: center;
                min-height: 44px;
                min-width: 44px;
            }

            .footer-links {
                flex-direction: column;
                gap: 1rem;
            }

            .user-section span {
                display: none;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: var(--font-size-3xl);
            }

            .hero-subtitle {
                font-size: var(--font-size-base);
            }

            .container {
                padding: 0 1rem;
            }

            .nav {
                padding: 0 0.5rem;
            }

            .blog-card {
                padding: var(--space-lg);
            }

            .section-title {
                font-size: var(--font-size-2xl);
            }
        }

        @media (max-width: 360px) {
            .hero h1 {
                font-size: var(--font-size-2xl);
            }

            .blog-card {
                padding: var(--space-md);
            }

            .nav-links a {
                font-size: 1.1rem;
                padding: 0.75rem;
            }
        }