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

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

    body {
        background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
        color: #ffffff;
        font-family: 'Roboto', sans-serif;
        line-height: 1.6;
        padding: 20px;
    }

    header {
        text-align: center;
        padding: 50px 0;
        background: linear-gradient(135deg, #1e3c72, #2a5298);
        border-radius: 10px;
        margin-bottom: 30px;
    }

    header h1 {
        font-family: 'Montserrat', sans-serif;
        font-size: 2.5em;
        margin-bottom: 10px;
        letter-spacing: 2px;
    }

    header p {
        font-size: 1.2em;
        color: #b0c4de;
    }

    nav {
        display: flex;
        justify-content: center;
        gap: 20px;
        margin-bottom: 40px;
    }

    nav a {
        color: #ffffff;
        text-decoration: none;
        font-size: 1em;
        padding: 10px 20px;
        border: 2px solid #ffffff;
        border-radius: 5px;
        transition: background 0.3s, color 0.3s;
    }

    nav a:hover {
        background: #ffffff;
        color: #2a5298;
    }

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

    @media (min-width: 768px) {
        .container {
            grid-template-columns: 3fr 1fr;
        }
    }

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

    article h2, article h3 {
        font-family: 'Montserrat', sans-serif;
        color: #ffde59;
        margin-bottom: 15px;
    }

    article h2 {
        font-size: 2em;
    }

    article h3 {
        font-size: 1.5em;
    }

    article p {
        margin-bottom: 15px;
        color: #f0f8ff;
    }

    article pre {
        background: rgba(0, 0, 0, 0.5);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 15px;
    }

    article code {
        font-family: 'Roboto Mono', monospace;
        color: #ffcc00;
    }

    .sample-data {
        background: rgba(255, 255, 255, 0.05);
        padding: 20px;
        border-radius: 10px;
    }

    .sample-data h2 {
        color: #ff6f61;
    }

    .sample-data ul {
        list-style: none;
        padding-left: 0;
    }

    .sample-data li {
        margin-bottom: 10px;
    }

    .sample-data li::before {
        content: "•";
        color: #ff6f61;
        margin-right: 10px;
    }

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

    .images img {
        width: 100px;
        height: 100px;
        object-fit: cover;
        border-radius: 5px;
    }

    footer {
        text-align: center;
        margin-top: 40px;
        color: #b0c4de;
    }

    .particles {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        z-index: -1;
    }

    .particle {
        position: absolute;
        width: 5px;
        height: 5px;
        background: #ffffff;
        border-radius: 50%;
        opacity: 0.7;
        animation: float 6s infinite ease-in-out;
    }

    @keyframes float {
        0% { transform: translateY(0); }
        50% { transform: translateY(-20px); }
        100% { transform: translateY(0); }
    }