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

    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        line-height: 1.6;
        background: linear-gradient(135deg, #00008b, #8a2be2, #c0c0c0);
        background-size: 400% 400%;
        animation: gradient-animation 15s ease infinite;
        color: #f0f0f0;
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 20px;
    }

    @keyframes gradient-animation {
        0% {background-position: 0% 50%;}
        50% {background-position: 100% 50%;}
        100% {background-position: 0% 50%;}
    }

    header {
        text-align: center;
        margin-bottom: 40px;
    }

    h1 {
        font-size: 3em;
        color: #fff;
        margin-bottom: 10px;
    }

    h2, h3 {
        color: #ffd700;
    }

    p {
        max-width: 800px;
        margin: 20px auto;
        padding: 0 10px;
    }

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

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #7fffd4;
    }

    table {
        width: 100%;
        max-width: 800px;
        margin: 20px auto;
        border-collapse: collapse;
    }

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

    th {
        background: rgba(255, 215, 0, 0.3);
    }

    img {
        max-width: 100%;
        height: auto;
        margin: 10px 0;
        border-radius: 10px;
    }

    .gallery {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 10px;
        max-width: 800px;
        margin: 20px auto;
    }

    .gallery img {
        width: 100%;
        height: auto;
        border: none;
    }

    .reference {
        background: rgba(0, 0, 0, 0.5);
        padding: 20px;
        border-radius: 10px;
        max-width: 800px;
        margin: 40px auto;
        text-align: center;
        font-size: 1.2em;
    }

    @media (max-width: 768px) {
        h1 {
            font-size: 2em;
        }
        p, pre, table {
            padding: 0 5px;
        }
    }