body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        margin: 0;
        padding: 0;
        background-color: #f4f7f6;
        color: #333;
        line-height: 1.6;
        display: flex;
        flex-direction: column;
        min-height: 100vh;
    }

    main {
        flex-grow: 1;
    }

    img, video {
        max-width: 100%;
        height: auto;
    }
        
    .logo a {
        display: flex;
        align-items: center;
        text-decoration: none;
    }

    .logo img {
        height: 60px;
        width: auto;
        margin-right: 30px;
        border-radius: 6px;
    }

    .logo span {
        font-size: k8em;
        font-weight: bold;
        color: #0a4abf;
        line-height: 1;
    }

    .container {
        margin: 0 auto;
        padding: 0 30px;
    }

    header {
        background-color: #ffffff;
        border-bottom: 1px solid #ddd;
        padding: 15px 0;
        position: sticky;
        top: 0;
        z-index: 100;
    }

    html {
        scrollbar-gutter: stable;
        scroll-padding-top: 90px;
    }

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

    nav ul {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
    }

    nav ul li {
        margin-left: 25px;
    }

    nav ul li a {
        text-decoration: none;
        color: #555;
        font-weight: 700;
        padding: 8px 12px;
        border-radius: 5px;
        transition: all 0.2s ease-in-out;
    }

    nav ul li a:hover {
        color: #0a4abf;
    }
    
    nav ul li a.active {
        color: #0a4abf;
        font-weight: 900;
        background-color: transparent;
    }

    .hero {
        background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('');
        background-size: cover;
        background-position: center;
        color: #ffffff;
        padding: 20px 80px;
        text-align: center;
    }

    .hero h1 {
        font-size: 3em;
        margin-bottom: 10px;
    }

    .hero p {
        font-size: 1.4em;
        margin-bottom: 30px;
    }

    .content-section {
        padding: 20px 0;
    }

    .content-section h2 {
        text-align: center;
        font-size: 2.2em;
        margin-bottom: 40px;
        color: #222;
    }

    .article-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
    }

    .card {
        background-color: #ffffff;
        border: 1px solid #ddd;
        border-radius: 8px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 6px 16px rgba(0,0,0,0.1);
    }

    .card-content {
        padding: 25px;
    }

    .card-content h3 {
        font-size: 1.4em;
        margin-top: 0;
        color: #0a4abf;
    }

    .card-content p {
        margin-bottom: 20px;
    }

    .card-content a {
        text-decoration: none;
        color: #0a4abf;
        font-weight: bold;
    }

    footer {
        background-color: #333;
        color: #ccc;
        text-align: center;
        margin-top: 10px;
        padding: 1px 20px;
    }

    .pages {
        text-align: left;
        color: #000000;
        margin-left: 25px;
        padding: 0 30px;
        font-size: 1.2em;
    }

    .introduction {
        text-align: left;
        color: #000000;
        margin-left: 25px;
        padding: 0 30px;
        font-size: 1.2em;
    }