/* Reset and base styles */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        line-height: 1.6;
        background: linear-gradient(135deg, #0000FF, #8A2BE2, #FF69B4);
        color: #ffffff;
        padding: 20px;
    }

    a {
        color: #00CFFF;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #FF4A91;
    }

    header {
        text-align: center;
        padding: 50px 20px;
        background: linear-gradient(135deg, #0000FF, #8A2BE2, #FF69B4);
        position: relative;
    }

    header h1 {
        font-size: 3rem;
        font-weight: bold;
        margin-bottom: 20px;
        color: #ffffff;
        text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
    }

    nav {
        display: flex;
        justify-content: center;
        gap: 30px;
        margin-bottom: 20px;
        background: rgba(0, 0, 0, 0.3);
        padding: 10px 20px;
        border-radius: 10px;
        backdrop-filter: blur(10px);
        transition: background 0.5s ease;
    }

    nav a {
        color: #00CFFF;
        font-size: 1.1rem;
        position: relative;
    }

    nav a::after {
        content: '';
        display: block;
        width: 0;
        height: 2px;
        background: #FF4A91;
        transition: width 0.3s;
    }

    nav a:hover::after {
        width: 100%;
    }

    .container {
        display: grid;
        grid-template-columns: 1fr 3fr;
        gap: 20px;
        max-width: 1200px;
        margin: 0 auto;
    }

    aside {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        backdrop-filter: blur(10px);
    }

    main {
        background: rgba(0, 0, 0, 0.3);
        padding: 20px;
        border-radius: 10px;
        backdrop-filter: blur(10px);
    }

    article {
        margin-bottom: 40px;
    }

    article h2 {
        font-size: 2.5rem;
        margin-bottom: 20px;
        color: #FFD700;
        text-shadow: 1px 1px 5px rgba(0,0,0,0.5);
    }

    article h3, article h4 {
        color: #00FF7F;
        margin-top: 20px;
        margin-bottom: 10px;
    }

    article p {
        margin-bottom: 15px;
        line-height: 1.8;
    }

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

    article code {
        color: #FF4500;
        font-family: 'Courier New', Courier, monospace;
    }

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

    .image-gallery img {
        width: 100%;
        max-width: 320px;
        border-radius: 10px;
    }

    .demo-section {
        background: rgba(255, 255, 255, 0.2);
        padding: 20px;
        border-radius: 10px;
        margin-top: 40px;
    }

    .demo-section h2 {
        font-size: 2rem;
        margin-bottom: 15px;
        color: #ADFF2F;
    }

    .demo-section p {
        margin-bottom: 10px;
    }

    footer {
        text-align: center;
        padding: 20px;
        background: rgba(0, 0, 0, 0.5);
        border-radius: 10px;
        margin-top: 40px;
    }

    .tooltip {
        position: relative;
        display: inline-block;
        cursor: pointer;
    }

    .tooltip::after {
        content: attr(data-tooltip);
        position: absolute;
        bottom: 125%;
        left: 50%;
        transform: translateX(-50%);
        background: #333;
        color: #fff;
        padding: 5px 10px;
        border-radius: 5px;
        white-space: nowrap;
        opacity: 0;
        transition: opacity 0.3s;
        pointer-events: none;
    }

    .tooltip:hover::after {
        opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 1440px) {
        .container {
            max-width: 1100px;
        }

        header h1 {
            font-size: 2.5rem;
        }

        nav a {
            font-size: 1rem;
        }

        article h2 {
            font-size: 2rem;
        }
    }

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

        nav {
            flex-direction: column;
            align-items: center;
        }
    }

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

        article h2 {
            font-size: 1.8rem;
        }
    }

    @media (max-width: 768px) {
        header h1 {
            font-size: 2rem;
        }

        nav {
            gap: 20px;
        }

        .image-gallery {
            flex-direction: column;
            align-items: center;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 1.5rem;
        }

        nav a {
            font-size: 0.9rem;
        }

        article h2 {
            font-size: 1.5rem;
        }
    }

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

        header h1 {
            font-size: 1.2rem;
        }

        nav a {
            font-size: 0.8rem;
        }

        article h2 {
            font-size: 1.2rem;
        }
    }

    /* Animations */
    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    .fade-in {
        animation: fadeIn 2s ease-in-out;
    }

    /* Button Styles */
    .button {
        background: linear-gradient(to right, #00CFFF, #FF4A91);
        color: white;
        border: none;
        padding: 10px 20px;
        border-radius: 5px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        transition: transform 0.3s ease;
        cursor: pointer;
    }

    .button:hover {
        transform: scale(1.1);
    }

    /* Tooltip Styles */