body {
        margin: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0074D9, #8A2BE2);
        color: #fff;
        line-height: 1.6;
    }
    header {
        padding: 60px 20px;
        text-align: center;
        background: rgba(26, 26, 26, 0.8);
    }
    header h1 {
        font-family: 'Futura', sans-serif;
        font-size: 48px;
        font-weight: bold;
        margin-bottom: 20px;
    }
    header p {
        font-size: 18px;
    }
    .container {
        display: flex;
        flex-wrap: wrap;
        padding: 20px;
    }
    .card {
        background: rgba(26, 26, 26, 0.9);
        margin: 10px;
        flex: 1 1 300px;
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 15px rgba(0,0,0,0.3);
        transition: transform 0.3s;
    }
    .card:hover {
        transform: scale(1.05);
    }
    .card img {
        width: 100%;
        height: auto;
        border-radius: 5px;
    }
    .card h3 {
        margin-top: 15px;
        font-family: 'Futura', sans-serif;
        font-size: 24px;
        color: #39FF14;
    }
    .card p {
        margin-top: 10px;
        font-size: 16px;
    }
    pre {
        background: #1A1A1A;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-size: 14px;
    }
    code {
        color: #FF4500;
    }
    .sample-article {
        background: rgba(26, 26, 26, 0.85);
        margin: 20px;
        padding: 20px;
        border-radius: 10px;
    }
    .sample-article h2, .sample-article h3 {
        color: #39FF14;
        font-family: 'Futura', sans-serif;
    }
    .sample-article table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 10px;
    }
    .sample-article th, .sample-article td {
        border: 1px solid #39FF14;
        padding: 10px;
        text-align: left;
    }
    .sample-article ul {
        list-style: none;
        padding: 0;
    }
    .sample-article li::before {
        content: "• ";
        color: #FF4500;
    }
    footer {
        text-align: center;
        padding: 20px;
        background: rgba(26, 26, 26, 0.8);
        position: fixed;
        width: 100%;
        bottom: 0;
    }
    @media (max-width: 768px) {
        header h1 {
            font-size: 32px;
        }
        .card {
            flex: 1 1 100%;
        }
    }