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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f9fafb;
        }

        /* Header Navigation */
        header {
            background: #fff;
            border-bottom: 1px solid #e0e0e0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-top {
            background: #005f9e;
            color: white;
            padding: 8px 0;
            font-size: 14px;
        }

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

        .header-top .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .header-top a {
            color: white;
            text-decoration: none;
            font-weight: 500;
        }

        .header-top a:hover {
            text-decoration: underline;
        }

        nav {
            padding: 15px 0;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #005f9e;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 30px;
        }

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

        .nav-links a:hover {
            color: #005f9e;
        }

        /* Page Header */
        .page-header {
            background: linear-gradient(135deg, #005f9e 0%, #0077be 100%);
            color: white;
            padding: 3rem 2rem;
        }

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

        .page-header h1 {
            font-size: 2.5rem;
            font-weight: bold;
            margin-bottom: 1rem;
        }

        .page-header p {
            font-size: 1.125rem;
            opacity: 0.95;
        }

        .search-bar {
            background-color: white;
            padding: 2rem;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .search-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .search-input {
            flex: 1;
            min-width: 300px;
            padding: 0.75rem 1rem;
            font-size: 1rem;
            border: 2px solid #e5e7eb;
            border-radius: 4px;
        }

        .search-input:focus {
            outline: none;
            border-color: #005f9e;
        }

        .search-button {
            padding: 0.75rem 2rem;
            background-color: #005f9e;
            color: white;
            border: none;
            border-radius: 4px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
        }

        .search-button:hover {
            background-color: #004578;
        }

        .filter-section {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .filter-button {
            padding: 0.5rem 1rem;
            background-color: white;
            border: 1px solid #d1d5db;
            border-radius: 4px;
            cursor: pointer;
            font-size: 0.9375rem;
        }

        .filter-button:hover {
            border-color: #005f9e;
            color: #005f9e;
        }

        .filter-button.active {
            background-color: #005f9e;
            color: white;
            border-color: #005f9e;
        }

        main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem;
        }

        .featured-resource {
            background: linear-gradient(135deg, #005f9e 0%, #0077be 100%);
            color: white;
            padding: 2.5rem;
            border-radius: 8px;
            margin-bottom: 3rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        .featured-badge {
            display: inline-block;
            background-color: rgba(255, 255, 255, 0.2);
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .featured-resource h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }

        .featured-resource .author {
            font-size: 0.9375rem;
            opacity: 0.9;
            margin-bottom: 0.5rem;
        }

        .featured-resource .description {
            font-size: 1.0625rem;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .featured-resource .btn-view {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            background-color: white;
            color: #005f9e;
            text-decoration: none;
            border-radius: 4px;
            font-weight: 600;
        }

        .featured-resource .btn-view:hover {
            background-color: #e6f2ff;
        }

        .resources-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .resource-card {
            background-color: white;
            border: 1px solid #e5e7eb;
            border-radius: 8px;
            padding: 1.5rem;
            transition: box-shadow 0.3s ease;
        }

        .resource-card:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .resource-type {
            display: inline-block;
            background-color: #e6f2ff;
            color: #005f9e;
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            font-size: 0.8125rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .resource-card h3 {
            font-size: 1.25rem;
            color: #1f2937;
            margin-bottom: 0.75rem;
        }

        .resource-card h3 a {
            color: #1f2937;
            text-decoration: none;
        }

        .resource-card h3 a:hover {
            color: #005f9e;
        }

        .resource-meta {
            font-size: 0.875rem;
            color: #6b7280;
            margin-bottom: 0.75rem;
        }

        .resource-description {
            font-size: 0.9375rem;
            color: #4b5563;
            line-height: 1.6;
            margin-bottom: 1rem;
        }

        .resource-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .tag {
            background-color: #f3f4f6;
            color: #4b5563;
            padding: 0.25rem 0.5rem;
            border-radius: 3px;
            font-size: 0.8125rem;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: bold;
            color: #1f2937;
            margin-bottom: 1.5rem;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid #e5e7eb;
        }

        /* Footer */
        footer {
            background: #333;
            color: white;
            padding: 50px 0 30px;
            margin-top: 4rem;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }

        .footer-section h4 {
            margin-bottom: 20px;
            font-size: 18px;
        }

        .footer-section ul {
            list-style: none;
        }

        .footer-section ul li {
            margin-bottom: 10px;
        }

        .footer-section a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-section a:hover {
            color: white;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #555;
            color: #aaa;
        }

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

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

            .page-header h1 {
                font-size: 2rem;
            }

            .search-container {
                flex-direction: column;
            }

            .search-input {
                min-width: 100%;
            }
        }