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

    /* Root Variables */
    :root {
        --primary-color: #000033;
        --secondary-color: #000066;
        --accent-color: #00ff99;
        --highlight-color: #ff00cc;
        --text-color: #ffffff;
        --background-gradient: linear-gradient(to bottom, #000033, #000066);
        --card-background: rgba(255, 255, 255, 0.2);
        --button-hover: #00e68a;
        --font-family: 'Roboto', sans-serif;
    }

    body {
        font-family: var(--font-family);
        color: var(--text-color);
        background: var(--background-gradient);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    /* Navbar Styles */
    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.8);
        z-index: 1000;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 30px;
    }

    .navbar .logo {
        font-size: 24px;
        font-weight: bold;
        color: var(--highlight-color);
    }

    .navbar ul {
        list-style: none;
        display: flex;
    }

    .navbar ul li {
        margin-left: 20px;
    }

    .navbar ul li a {
        text-decoration: none;
        color: var(--text-color);
        font-size: 16px;
        transition: color 0.3s;
    }

    .navbar ul li a:hover {
        color: var(--accent-color);
    }

    /* Hero Section */
    .hero {
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative;
        padding-top: 60px;
    }

    .hero::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: var(--background-gradient);
        z-index: -1;
        animation: backgroundMove 10s infinite alternate;
    }

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

    .hero-content {
        text-align: center;
        max-width: 800px;
        padding: 20px;
        backdrop-filter: blur(10px);
        background: rgba(0, 0, 0, 0.5);
        border-radius: 15px;
    }

    .hero-content h1 {
        font-size: 48px;
        font-style: italic;
        color: var(--highlight-color);
        text-shadow: 2px 2px 5px rgba(0,0,0,0.7);
        margin-bottom: 20px;
    }

    .hero-content p {
        font-size: 18px;
        line-height: 1.6;
    }

    /* Main Content */
    .main {
        flex: 1;
        padding: 100px 50px 50px 50px;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .cards {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 30px;
        width: 100%;
        max-width: 1200px;
        margin-bottom: 50px;
    }

    .card {
        background: var(--card-background);
        backdrop-filter: blur(10px);
        border-radius: 15px;
        padding: 20px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        position: relative;
    }

    .card:hover {
        transform: scale(1.05);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    }

    .card img {
        width: 100%;
        border-radius: 10px;
        margin-bottom: 15px;
    }

    .card h3 {
        font-size: 20px;
        color: var(--highlight-color);
        margin-bottom: 10px;
    }

    .card p {
        font-size: 16px;
        line-height: 1.5;
    }

    /* Sample Article Section */
    .sample-article {
        width: 100%;
        max-width: 1200px;
        background: var(--card-background);
        backdrop-filter: blur(10px);
        border-radius: 15px;
        padding: 30px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
        margin-bottom: 50px;
    }

    .sample-article h2 {
        font-size: 28px;
        color: var(--highlight-color);
        margin-bottom: 20px;
        text-align: center;
    }

    .sample-article h3, .sample-article h4 {
        color: var(--accent-color);
        margin-top: 20px;
        margin-bottom: 10px;
    }

    .sample-article p {
        font-size: 16px;
        line-height: 1.6;
        margin-bottom: 15px;
    }

    .sample-article pre {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        margin-bottom: 15px;
    }

    .sample-article code {
        font-family: 'Courier New', Courier, monospace;
        color: #00ff99;
    }

    .sample-article table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    .sample-article table, .sample-article th, .sample-article td {
        border: 1px solid var(--accent-color);
    }

    .sample-article th, .sample-article td {
        padding: 10px;
        text-align: left;
    }

    .sample-article th {
        background: var(--highlight-color);
        color: var(--text-color);
    }

    /* Footer */
    .footer {
        width: 100%;
        background: rgba(0, 0, 0, 0.8);
        padding: 20px 30px;
        text-align: center;
        color: var(--text-color);
    }

    /* Decorative Particle Elements */
    .particle {
        position: absolute;
        width: 5px;
        height: 5px;
        background: #ffffff;
        border-radius: 50%;
        animation: particleFlow 5s infinite;
    }

    .particle:nth-child(1) { top: 10%; left: 20%; animation-delay: 0s; }
    .particle:nth-child(2) { top: 30%; left: 50%; animation-delay: 1s; }
    .particle:nth-child(3) { top: 60%; left: 80%; animation-delay: 2s; }
    .particle:nth-child(4) { top: 80%; left: 40%; animation-delay: 3s; }

    @keyframes particleFlow {
        0% { transform: translateY(-100%); opacity: 0; }
        50% { opacity: 1; }
        100% { transform: translateY(100%); opacity: 0; }
    }

    /* Responsive Design */
    @media (max-width: 1440px) {
        .hero-content h1 {
            font-size: 42px;
        }

        .navbar {
            padding: 10px 20px;
        }

        .navbar .logo {
            font-size: 20px;
        }

        .navbar ul li a {
            font-size: 14px;
        }
    }

    @media (max-width: 1200px) {
        .main {
            padding: 80px 30px 30px 30px;
        }

        .hero-content h1 {
            font-size: 36px;
        }

        .card h3 {
            font-size: 18px;
        }

        .card p {
            font-size: 14px;
        }

        .sample-article h2 {
            font-size: 24px;
        }
    }

    @media (max-width: 1024px) {
        .cards {
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .sample-article {
            padding: 25px;
        }
    }

    @media (max-width: 768px) {
        .navbar ul {
            display: none;
        }

        .navbar .menu-icon {
            display: block;
            cursor: pointer;
        }

        .navbar ul.mobile-menu {
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 60px;
            right: 20px;
            background: rgba(0, 0, 0, 0.9);
            padding: 20px;
            border-radius: 10px;
        }

        .navbar ul.mobile-menu li {
            margin: 10px 0;
        }

        .cards {
            grid-template-columns: 1fr;
            padding: 0 20px;
        }

        .sample-article {
            padding: 20px;
        }
    }

    @media (max-width: 480px) {
        .hero-content h1 {
            font-size: 28px;
        }

        .card {
            padding: 15px;
        }

        .card h3 {
            font-size: 16px;
        }

        .card p {
            font-size: 12px;
        }

        .sample-article h2 {
            font-size: 20px;
        }

        .sample-article p, .sample-article code, .sample-article pre {
            font-size: 14px;
        }
    }

    @media (max-width: 320px) {
        .hero-content h1 {
            font-size: 24px;
        }

        .sample-article h2 {
            font-size: 18px;
        }

        .navbar .logo {
            font-size: 18px;
        }
    }