:root {
        --primary-color: #003366;
        --secondary-color: #E6F7FF;
        --accent-color: #6C5CE7;
        --highlight-color: #39FF14;
        --point-color: #FFA726;
        --background-gradient: radial-gradient(circle, #003366, #6C5CE7, #BDB2FF);
        --font-primary: 'Roboto', sans-serif;
        --font-secondary: 'Montserrat', sans-serif;
    }

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

    body {
        font-family: var(--font-primary);
        background: var(--secondary-color);
        color: var(--primary-color);
        line-height: 1.6;
        padding: 20px;
    }

    header {
        background: var(--background-gradient);
        padding: 20px;
        text-align: center;
        color: white;
        border-radius: 10px;
        margin-bottom: 20px;
    }

    header h1 {
        font-family: var(--font-secondary);
        font-size: 2.5em;
    }

    nav {
        display: flex;
        justify-content: center;
        gap: 15px;
        margin-bottom: 20px;
    }

    nav a {
        text-decoration: none;
        color: white;
        font-weight: bold;
        padding: 10px 15px;
        border-radius: 5px;
        background-color: var(--accent-color);
        transition: background-color 0.3s ease;
    }

    nav a:hover {
        background-color: var(--highlight-color);
    }

    .container {
        display: grid;
        grid-template-columns: 1fr 3fr;
        gap: 20px;
    }

    aside {
        background: white;
        padding: 15px;
        border-radius: 8px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }

    aside h2 {
        font-family: var(--font-secondary);
        color: var(--accent-color);
        margin-bottom: 10px;
    }

    aside ul {
        list-style: none;
    }

    aside ul li {
        margin-bottom: 10px;
    }

    aside ul li a {
        color: var(--primary-color);
        text-decoration: none;
        transition: color 0.3s ease;
    }

    aside ul li a:hover {
        color: var(--highlight-color);
    }

    main {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    article {
        background: white;
        padding: 20px;
        border-radius: 8px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }

    article h2, article h3, article h4 {
        font-family: var(--font-secondary);
        color: var(--accent-color);
        margin-bottom: 15px;
    }

    article p {
        margin-bottom: 15px;
    }

    article pre {
        background: #f5f5f5;
        padding: 10px;
        border-radius: 5px;
        overflow-x: auto;
    }

    article code {
        font-family: 'Courier New', Courier, monospace;
        color: var(--highlight-color);
    }

    .example-data {
        background: var(--secondary-color);
        padding: 15px;
        border-left: 5px solid var(--accent-color);
        border-radius: 5px;
        margin-top: 20px;
    }

    .example-data h3 {
        margin-bottom: 10px;
    }

    .example-data ul {
        list-style: disc;
        padding-left: 20px;
    }

    footer {
        text-align: center;
        margin-top: 30px;
        font-size: 0.9em;
        color: #666;
    }

    img {
        max-width: 100%;
        border-radius: 5px;
        margin-bottom: 10px;
    }

    .code-preview {
        background: #2d2d2d;
        color: #f8f8f2;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
    }

    /* Responsive Styles */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.3em;
        }
    }

    @media (max-width: 1200px) {
        .container {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 1024px) {
        nav {
            flex-direction: column;
            align-items: center;
        }

        nav a {
            width: 80%;
            text-align: center;
        }
    }

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

        aside {
            display: none;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 2em;
        }

        nav a {
            padding: 8px 12px;
        }
    }

    @media (max-width: 320px) {
        body {
            padding: 10px;
        }

        header {
            padding: 15px;
        }
    }

    /* Animation */
    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    body {
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
    }