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

    :root {
        --background-gradient: linear-gradient(135deg, #A8E6CF, #DCEDC1, #FFD3B6, #FFAAA5);
        --text-color: #333333;
        --heading-color: #0074D9;
        --accent-color: #FF5722;
        --code-background: #f5f5f5;
        --code-border: #e0e0e0;
        --button-hover: rgba(255, 255, 255, 0.5);
    }

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

    body {
        font-family: 'Roboto', sans-serif;
        background: var(--background-gradient);
        color: var(--text-color);
        line-height: 1.6;
        padding: 20px;
    }

    header {
        text-align: center;
        padding: 50px 20px;
        background: rgba(255, 255, 255, 0.8);
        border-radius: 10px;
        margin-bottom: 30px;
    }

    header h1 {
        font-family: 'Shadows Into Light', cursive;
        font-size: 2.5em;
        color: var(--heading-color);
        margin-bottom: 10px;
    }

    header p {
        font-size: 1.2em;
        color: #555555;
    }

    article {
        background: rgba(255, 255, 255, 0.9);
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        margin-bottom: 30px;
    }

    article h2, article h3, article h4 {
        color: var(--heading-color);
        margin-top: 20px;
        margin-bottom: 10px;
    }

    article h2 {
        font-size: 2em;
    }

    article h3 {
        font-size: 1.5em;
    }

    article h4 {
        font-size: 1.2em;
    }

    article p {
        margin-bottom: 15px;
    }

    article pre {
        background: var(--code-background);
        border: 1px solid var(--code-border);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 15px;
    }

    article code {
        font-family: 'Courier New', Courier, monospace;
        color: #d6336c;
    }

    .data-section {
        background: rgba(255, 255, 255, 0.85);
        padding: 20px;
        border-radius: 8px;
        margin-bottom: 30px;
    }

    .data-section h3 {
        margin-bottom: 10px;
        color: var(--accent-color);
    }

    .data-section ul {
        list-style-type: disc;
        margin-left: 20px;
    }

    .image-gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 30px;
    }

    .image-gallery img {
        width: 100%;
        max-width: 150px;
        border-radius: 5px;
    }

    .responsive-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        margin-bottom: 30px;
    }

    .card {
        background: rgba(255, 255, 255, 0.95);
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    }

    button {
        background: var(--heading-color);
        color: #ffffff;
        border: none;
        padding: 10px 20px;
        border-radius: 5px;
        cursor: pointer;
        position: relative;
        overflow: hidden;
        transition: background 0.3s ease;
    }

    button:hover {
        background: darken(var(--heading-color), 10%);
    }

    button::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: var(--button-hover);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        opacity: 0;
        transition: width 0.4s ease, height 0.4s ease, opacity 0.4s ease;
    }

    button:hover::before {
        width: 200px;
        height: 200px;
        opacity: 1;
    }

    footer {
        text-align: center;
        padding: 20px;
        color: #777777;
        font-size: 0.9em;
    }

    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.2em;
        }
    }

    @media (max-width: 1200px) {
        .image-gallery img {
            max-width: 120px;
        }
    }

    @media (max-width: 1024px) {
        article, .data-section, .card {
            padding: 20px;
        }
    }

    @media (max-width: 768px) {
        header {
            padding: 30px 15px;
        }

        .responsive-grid {
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 1.8em;
        }

        article, .data-section, .card {
            padding: 15px;
        }

        .image-gallery img {
            max-width: 100px;
        }
    }

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.5em;
        }

        button {
            padding: 8px 16px;
        }
    }

    /* Animation for background movement */
    body {
        animation: backgroundMove 15s linear infinite;
    }

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