body, html {
    margin: 0;
    padding: 0;
    font-family: 'Open Sans', sans-serif;
    background: linear-gradient(135deg, #0A1F44, #1B2F55);
    color: white;
    overflow-x: hidden;
    min-height: 100vh;
}

header {
    text-align: center;
    padding: 40px 20px;
    background: rgba(10, 31, 68, 0.9);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

header h1 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    font-size: 2.5rem;
    color: #C0C0C0;
    margin: 0;
}

header p {
    font-size: 1.2rem;
    color: #39FF14;
    margin-top: 10px;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px;
}

.card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    transition: transform 0.3s ease-in-out;
    padding: 20px;
    text-align: center;
}

.card:hover {
    transform: scale(1.05);
}

.card img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 15px;
}

.card h3 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    color: #C0C0C0;
    font-size: 1.5rem;
    margin: 0 0 10px;
}

.card p {
    font-size: 1rem;
    color: #fff;
    line-height: 1.6;
}

.card .highlight {
    color: #39FF14;
    font-weight: bold;
}

.article-container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.article-container h2 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    color: #C0C0C0;
    font-size: 2rem;
    margin-bottom: 20px;
}

.article-container p {
    font-size: 1rem;
    color: #fff;
    line-height: 1.6;
    margin-bottom: 15px;
}

.article-container pre {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.9rem;
    color: #39FF14;
}

.article-container table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

.article-container th, .article-container td {
    padding: 10px;
    text-align: left;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
}

.article-container th {
    background: rgba(10, 31, 68, 0.8);
    color: #39FF14;
}

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

    .card {
        padding: 15px;
    }

    .article-container pre {
        font-size: 0.8rem;
    }
}

footer {
    text-align: center;
    padding: 20px;
    background: rgba(10, 31, 68, 0.9);
    color: #C0C0C0;
    font-size: 0.9rem;
}