body {
        margin: 0;
        padding: 0;
        font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
        background: linear-gradient(135deg, #6A5ACD, #00CED1, #FF4500, #FF69B4);
        background-size: 400% 400%;
        animation: gradientAnimation 15s ease infinite;
        color: #fff;
    }

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

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

    header h1 {
        font-family: 'Times New Roman', Times, serif;
        font-size: 2.5em;
        margin: 0;
    }

    nav {
        display: flex;
        justify-content: center;
        gap: 15px;
        margin-top: 10px;
    }

    nav a {
        color: #FF69B4;
        text-decoration: none;
        font-size: 1em;
        transition: color 0.3s;
    }

    nav a:hover {
        color: #FFD700;
    }

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

    .sidebar {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 10px;
    }

    .content {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
    }

    article pre {
        background: rgba(0, 0, 0, 0.7);
        padding: 10px;
        border-radius: 5px;
        overflow-x: auto;
    }

    article code {
        color: #00CED1;
    }

    .gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 20px;
    }

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

    footer {
        text-align: center;
        padding: 10px;
        background: rgba(0, 0, 0, 0.5);
        position: fixed;
        width: 100%;
        bottom: 0;
    }

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

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

        nav a {
            font-size: 0.9em;
        }
    }

    @media (max-width: 480px) {
        .gallery img {
            max-width: 100px;
        }
    }

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

        nav a {
            font-size: 0.8em;
        }
    }

    .button {
        background-color: #4B0082;
        border: none;
        color: white;
        padding: 10px 20px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        font-size: 1em;
        margin: 10px 2px;
        cursor: pointer;
        border-radius: 5px;
        position: relative;
        overflow: hidden;
    }

    .button::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(255, 255, 255, 0.2);
        opacity: 0;
        transition: opacity 0.3s ease;
    }

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

    .tilted-box {
        transform: rotate(-5deg);
        background-color: #FF4500;
        color: white;
        padding: 20px;
        margin: 20px 0;
        border-radius: 10px;
    }

    .highlight {
        background: rgba(255, 215, 0, 0.3);
        padding: 5px;
        border-radius: 3px;
    }

    .visual-contrast {
        color: #FFD700;
    }