body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, #002F6C, #6A00FF);
    color: #fff;
    overflow-x: hidden;
}
header {
    text-align: center;
    padding: 40px 20px;
    background: radial-gradient(circle, rgb(255, 87, 34), transparent);
    animation: aurora-move 15s linear infinite;
}
@keyframes aurora-move {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}
header h1 {
    font-size: 3rem;
    font-weight: bold;
    text-transform: uppercase;
    margin: 0;
}
.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px;
}
.card {
    background: linear-gradient(135deg, #1E217C, #4B0082);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 20px;
    transition: transform 0.3s ease;
}
.card:hover {
    transform: scale(1.05);
}
.card img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 10px;
}
h2 {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 10px;
}
p {
    margin: 0 0 10px;
}
pre {
    background: #1a1a1a;
    color: #00FFD1;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
}
code {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
th, td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: left;
}
th {
    background: linear-gradient(135deg, #002F6C, #6A00FF);
    color: #fff;
}
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    .container {
        grid-template-columns: 1fr;
    }
    pre {
        font-size: 0.8rem;
    }
}
.network-node {
    width: 50px;
    height: 50px;
    background-color: #00FFD1;
    border-radius: 50%;
    position: relative;
    margin: 20px auto;
}
.network-node::after {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 1px solid #FFFFFF;
    border-radius: 50%;
}
.background-animation {
    background: linear-gradient(135deg, #002F6C, #6A00FF);
    background-size: 200% 200%;
    animation: gradientAnimation 5s infinite;
}
@keyframes gradientAnimation {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}
.notice {
    text-align: center;
    font-size: 1rem;
    color: #ccc;
    margin-top: 20px;
}