@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700&family=Roboto:wght@400;700&display=swap');

    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(to bottom, #000046, #430098);
        color: #ffffff;
    }

    header {
        text-align: center;
        padding: 50px 20px;
        background: rgba(0, 0, 0, 0.5);
    }

    h1, h2, h3, h4 {
        font-family: 'Orbitron', sans-serif;
        text-transform: uppercase;
        letter-spacing: 2px;
    }

    h2 {
        font-size: 2.5em;
        margin-bottom: 20px;
        color: #4CAF50;
    }

    h3 {
        font-size: 2em;
        margin-top: 40px;
        color: #2196F3;
    }

    p {
        line-height: 1.6;
        margin: 20px 0;
    }

    pre {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    code {
        font-family: 'Roboto', monospace;
        color: #FF9800;
    }

    table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }

    th, td {
        border: 1px solid #ffffff;
        padding: 10px;
        text-align: left;
    }

    th {
        background: #2196F3;
    }

    .card-container {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        padding: 20px;
    }

    .card {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid #ffffff;
        border-radius: 10px;
        width: 300px;
        margin: 15px;
        padding: 20px;
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .card:hover {
        transform: scale(1.05);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    }

    .card img {
        width: 100%;
        border-radius: 5px;
    }

    .card h4 {
        margin-top: 15px;
        color: #FF9800;
    }

    .animation {
        animation: ripple 1s infinite;
    }

    @keyframes ripple {
        from {
            transform: scale(1);
            opacity: 1;
        }
        to {
            transform: scale(1.5);
            opacity: 0;
        }
    }

    .parallax {
        background-image: url('https://images.gptkong.com/demo/sample1.png');
        height: 500px;
        background-attachment: fixed;
        background-position: center;
        background-repeat: no-repeat;
        background-size: cover;
    }

    @media (max-width: 320px) {
        h1 { font-size: 1.5em; }
        h2 { font-size: 1.8em; }
        .card { width: 90%; }
    }

    @media (max-width: 480px) {
        h1 { font-size: 1.8em; }
        h2 { font-size: 2em; }
        .card { width: 85%; }
    }

    @media (max-width: 768px) {
        .card-container {
            flex-direction: column;
            align-items: center;
        }
    }

    @media (max-width: 1024px) {
        header {
            padding: 40px 15px;
        }
    }

    @media (max-width: 1200px) {
        h1 { font-size: 2em; }
    }

    @media (min-width: 1440px) {
        .card { width: 300px; }
    }