* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    
    body {
        font-family: Open Sans, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        background-color: #f9fafb;
        color: #111827;
        line-height: 1.6;
    }
    
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    
    header {
        background-color: #1e88e5;
        color: white;
        padding: 1rem 0;
        margin-bottom: 2rem;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        position: sticky;
        top: 0;
        z-index: 100;
    }
    
    header h1 {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
        display: none;
    }
    
    /* Navigation Styles */
    .header-nav {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.5rem 0;
    }
    
    .nav-brand {
        display: flex;
        align-items: center;
    }
    
    .logo {
        display: flex;
        align-items: center;
        text-decoration: none;
        color: white;
        font-weight: bold;
        font-size: 1.5rem;
    }
    
    .logo-icon {
        background-color: white;
        color: #1e88e5;
        width: 40px;
        height: 40px;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 0.75rem;
        font-weight: bold;
        font-size: 1.2rem;
    }
    
    .logo-text {
        font-size: 1.3rem;
    }
    
    .nav-menu {
        list-style: none;
        display: flex;
        gap: 2rem;
        align-items: center;
        margin: 0;
    }
    
    .nav-menu a {
        color: white;
        text-decoration: none;
        opacity: 0.9;
        transition: opacity 0.3s;
        font-weight: 500;
    }
    
    .nav-menu a:hover {
        opacity: 1;
        text-decoration: underline;
    }
    
    /* Facts Section */
    .facts-section {
        background: linear-gradient(135deg, #1e88e511, #ff980011);
        padding: 3rem 2rem;
        margin-bottom: 3rem;
        border-radius: 12px;
    }
    
    .facts-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 2rem;
        text-align: center;
    }
    
    .fact-item {
        background: white;
        padding: 2rem;
        border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    }
    
    .fact-number {
        font-size: 2.5rem;
        font-weight: bold;
        color: #1e88e5;
        margin-bottom: 0.5rem;
    }
    
    .fact-label {
        font-size: 1rem;
        color: #111827;
        opacity: 0.8;
    }
    
    /* Category Filter */
    .categories-section {
        margin-bottom: 2rem;
    }
    
    .categories-title {
        font-size: 1.5rem;
        margin-bottom: 1rem;
        color: #1e88e5;
    }
    
    .category-filters {
        display: flex;
        gap: 1rem;
        flex-wrap: wrap;
        margin-bottom: 2rem;
    }
    
    .category-btn {
        padding: 0.5rem 1.5rem;
        background-color: white;
        border: 2px solid #1e88e533;
        border-radius: 25px;
        cursor: pointer;
        font-size: 1rem;
        transition: all 0.3s;
        font-family: inherit;
    }
    
    .category-btn:hover {
        background-color: #1e88e511;
        border-color: #1e88e5;
    }
    
    .category-btn.active {
        background-color: #1e88e5;
        color: white;
        border-color: #1e88e5;
    }
    
    .article-card.hidden {
        display: none !important;
    }
    
    /* Hero section variations */
    .site-info {
        background-color: white;
        padding: 2rem;
        margin-bottom: 2rem;
        border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }
    
    .site-info.hero-centered {
        text-align: center;
        padding: 3rem;
        background: linear-gradient(135deg, #1e88e522, #ff980022);
    }
    
    .site-info.hero-minimal {
        background: transparent;
        box-shadow: none;
        padding: 1rem 0;
        border-bottom: 1px solid #1e88e533;
    }
    
    .site-info.hero-bold {
        background: linear-gradient(135deg, #1e88e5, #26c6da);
        color: white;
        padding: 4rem 2rem;
    }
    
    .site-info.hero-editorial {
        background-color: #111827;
        color: white;
        padding: 3rem;
        position: relative;
        overflow: hidden;
    }
    
    .site-info.hero-editorial::before {
        content: '';
        position: absolute;
        top: -50%;
        right: -10%;
        width: 50%;
        height: 200%;
        background: #ff9800;
        transform: rotate(15deg);
        opacity: 0.1;
    }
    
    .site-info.hero-clean {
        background: white;
        border: 2px solid #1e88e522;
        padding: 2.5rem;
    }
    
    .stats {
        display: flex;
        gap: 2rem;
        margin-top: 1rem;
        flex-wrap: wrap;
    }
    
    .stat {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
        font-weight: bold;
        color: #1e88e5;
    }
    
    /* Classic Grid Layout */
    .articles-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 2rem;
        margin-bottom: 2rem;
    }
    
    /* Masonry Layout */
    .articles-masonry {
        column-count: 3;
        column-gap: 2rem;
        margin-bottom: 2rem;
    }
    
    .articles-masonry .article-card {
        break-inside: avoid;
        margin-bottom: 2rem;
    }
    
    /* Horizontal Cards Layout */
    .articles-list {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .articles-list .article-card {
        display: flex;
        flex-direction: row;
        max-width: none;
    }
    
    .articles-list .article-image {
        width: 300px;
        height: 200px;
        flex-shrink: 0;
    }
    
    /* Asymmetric Grid */
    .articles-asymmetric {
        display: grid;
        grid-template-columns: repeat(6, 1fr);
        gap: 2rem;
        margin-bottom: 2rem;
    }
    
    .articles-asymmetric .article-card:nth-child(1) {
        grid-column: span 4;
        grid-row: span 2;
    }
    
    .articles-asymmetric .article-card:nth-child(1) .article-image {
        height: 400px;
    }
    
    .articles-asymmetric .article-card:nth-child(2) {
        grid-column: span 2;
    }
    
    .articles-asymmetric .article-card:nth-child(n+3) {
        grid-column: span 3;
    }
    
    /* Magazine Style */
    .articles-magazine {
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: 2rem;
        margin-bottom: 2rem;
    }
    
    .articles-magazine .article-card:first-child {
        grid-row: span 2;
    }
    
    .articles-magazine .article-card:first-child .article-image {
        height: 400px;
    }
    
    /* Minimal List */
    .articles-minimal {
        display: flex;
        flex-direction: column;
        gap: 0;
        margin-bottom: 2rem;
    }
    
    .articles-minimal .article-card {
        border-radius: 0;
        box-shadow: none;
        border-bottom: 1px solid #1e88e522;
        padding-bottom: 2rem;
        margin-bottom: 2rem;
    }
    
    .articles-minimal .article-card:hover {
        transform: none;
        box-shadow: none;
        background-color: #1e88e505;
    }
    
    .articles-minimal .article-image {
        display: none;
    }
    
    .article-card {
        background-color: white;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        text-decoration: none;
        color: inherit;
        display: block;
    }
    
    .article-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    }
    
    .article-image {
        width: 100%;
        height: 200px;
        object-fit: cover;
        loading: lazy;
    }
    
    .article-content {
        padding: 1.5rem;
    }
    
    .article-category {
        display: inline-block;
        background-color: #ff9800;
        color: white;
        padding: 0.25rem 0.75rem;
        border-radius: 4px;
        font-size: 0.875rem;
        margin-bottom: 0.5rem;
    }
    
    .article-title {
        font-size: 1.25rem;
        margin-bottom: 0.5rem;
        color: #1e88e5;
    }
    
    .article-description {
        color: #666;
        font-size: 0.95rem;
    }
    
    footer {
        background-color: #26c6da;
        color: white;
        text-align: center;
        padding: 2rem 0;
        margin-top: 3rem;
    }
    
    .footer-links {
        margin-bottom: 1rem;
    }
    
    .footer-links ul {
        list-style: none;
        display: flex;
        justify-content: center;
        gap: 2rem;
        flex-wrap: wrap;
        margin-bottom: 1rem;
    }
    
    .footer-links a {
        color: white;
        text-decoration: none;
        opacity: 0.9;
        transition: opacity 0.3s;
    }
    
    .footer-links a:hover {
        opacity: 1;
        text-decoration: underline;
    }
    
    /* Article Page Styles */
    .article-header {
        background-color: #1e88e5;
        color: white;
        padding: 3rem 0;
        margin-bottom: 2rem;
    }
    
    .article-meta {
        margin-top: 1rem;
        opacity: 0.9;
    }
    
    .article-body {
        background-color: white;
        padding: 2rem;
        border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        margin-bottom: 2rem;
    }
    
    .article-body p {
        margin-bottom: 1.5rem;
    }
    
    .article-body img {
        width: 100%;
        max-width: 600px;
        height: auto;
        margin-bottom: 2rem;
        border-radius: 8px;
        loading: lazy;
    }
    
    .related-articles {
        margin-top: 3rem;
    }
    
    .related-articles h2 {
        margin-bottom: 1.5rem;
        color: #1e88e5;
    }
    
    .breadcrumb {
        margin-bottom: 1rem;
    }
    
    .breadcrumb a {
        color: white;
        text-decoration: none;
        opacity: 0.8;
    }
    
    .breadcrumb a:hover {
        opacity: 1;
    }
    
    /* Navigation */
    nav {
        margin-top: 1rem;
    }
    
    nav ul {
        list-style: none;
        display: flex;
        gap: 2rem;
        flex-wrap: wrap;
    }
    
    nav a {
        color: white;
        text-decoration: none;
        opacity: 0.9;
        transition: opacity 0.3s;
    }
    
    nav a:hover {
        opacity: 1;
        text-decoration: underline;
    }
    
    /* Contact Box */
    .contact-box {
        background-color: #ff9800;
        color: white;
        padding: 2rem;
        border-radius: 8px;
        margin-top: 3rem;
        text-align: center;
    }
    
    .contact-box h3 {
        margin-bottom: 1rem;
        font-size: 1.5rem;
    }
    
    .contact-box p {
        margin-bottom: 0.5rem;
    }
    
    .contact-box a {
        color: white;
        font-size: 1.25rem;
        text-decoration: none;
        font-weight: bold;
        border-bottom: 2px solid white;
        padding-bottom: 2px;
    }
    
    .contact-box a:hover {
        opacity: 0.9;
    }
    
    /* Page Content */
    .page-content {
        background-color: white;
        padding: 3rem;
        border-radius: 8px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        margin-bottom: 2rem;
        min-height: 400px;
    }
    
    .page-content h2 {
        color: #1e88e5;
        margin-bottom: 1.5rem;
        font-size: 2rem;
    }
    
    .page-content p {
        margin-bottom: 1.5rem;
        line-height: 1.8;
    }
    
    .page-content h3 {
        color: #1e88e5;
        margin-top: 2rem;
        margin-bottom: 1rem;
    }
    
    @media (max-width: 768px) {
        header h1 {
            font-size: 1.75rem;
        }
        
        .header-nav {
            flex-direction: column;
            gap: 1rem;
            padding: 1rem 0;
        }
        
        .nav-menu {
            flex-direction: row;
            gap: 1rem;
            width: 100%;
            justify-content: center;
            flex-wrap: wrap;
        }
        
        .nav-menu li {
            margin: 0;
        }
        
        .nav-menu a {
            font-size: 0.9rem;
        }
        
        .logo {
            font-size: 1.2rem;
        }
        
        .logo-icon {
            width: 35px;
            height: 35px;
            font-size: 1rem;
        }
        
        .logo-text {
            font-size: 1.1rem;
        }
        
        .facts-container {
            grid-template-columns: 1fr;
            gap: 1rem;
        }
        
        .fact-item {
            padding: 1.5rem;
        }
        
        .fact-number {
            font-size: 2rem;
        }
        
        .category-filters {
            justify-content: center;
        }
        
        .category-btn {
            padding: 0.4rem 1rem;
            font-size: 0.9rem;
        }
        
        .articles-grid {
            grid-template-columns: 1fr;
        }
        
        .articles-masonry {
            column-count: 1;
        }
        
        .articles-list .article-card {
            flex-direction: column;
        }
        
        .articles-list .article-image {
            width: 100%;
        }
        
        .articles-asymmetric {
            grid-template-columns: 1fr;
        }
        
        .articles-asymmetric .article-card:nth-child(1) {
            grid-column: span 1;
            grid-row: span 1;
        }
        
        .articles-asymmetric .article-card:nth-child(1) .article-image {
            height: 200px;
        }
        
        .articles-magazine {
            grid-template-columns: 1fr;
        }
        
        .articles-magazine .article-card:first-child .article-image {
            height: 200px;
        }
        
        .stats {
            flex-direction: column;
            gap: 1rem;
        }
        
        nav ul {
            flex-direction: column;
            gap: 0.5rem;
        }
        
        .page-content {
            padding: 1.5rem;
        }
        
        .footer-links ul {
            flex-direction: column;
            gap: 0.5rem;
        }
    }