body {
    margin: 0;
    font-family: 'Helvetica', 'Roboto', sans-serif;
    line-height: 1.6;
    color: #f4f4f9;
    background: linear-gradient(135deg, #0a1d3e, #1c3b75);
    overflow-x: hidden;
    animation: aurora-move 15s linear infinite;
}

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

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.header {
    width: 100%;
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 3rem;
    color: #ffffff;
    text-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    background: radial-gradient(circle, rgba(255, 87, 34, 0.3), transparent);
    padding: 10px;
    border-radius: 10px;
}

.section {
    max-width: 1200px;
    width: 100%;
    margin-bottom: 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
}

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

.article {
    background: rgba(0, 0, 0, 0.6);
    padding: 20px;
    border-radius: 15px;
    max-width: 1000px;
    margin: 0 auto;
}

.article h2 {
    font-size: 2.2rem;
    color: #ff5722;
    margin-bottom: 20px;
}

.article h3 {
    font-size: 1.8rem;
    color: #007bff;
    margin-top: 20px;
    margin-bottom: 15px;
}

.article table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.article th, .article td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: left;
    color: #fff;
}

.article pre {
    background: #1c3b75;
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
}

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

    .section {
        grid-template-columns: 1fr;
    }

    .card {
        padding: 15px;
    }
}