body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #0D47A1, #1E88E5);
    overflow-x: hidden;
    min-height: 100vh;
}
h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: bold;
    color: #FFFFFF;
}
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(13, 71, 161, 0.9);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 10px 20px;
}
.tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}
.tab {
    padding: 10px 20px;
    cursor: pointer;
    border: 1px solid #ccc;
    background-color: #fff;
    color: #0D47A1;
    border-radius: 5px;
    transition: all 0.3s ease;
}
.tab.active {
    background-color: #0D47A1;
    color: #FFFFFF;
}
.container {
    max-width: 1200px;
    margin: 100px auto 20px;
    padding: 20px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.9), transparent);
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}
article {
    font-size: 16px;
    line-height: 1.8;
    color: #333;
}
code {
    background: #F5F5F5;
    padding: 2px 5px;
    border-radius: 3px;
    color: #0D47A1;
}
pre {
    background: #F5F5F5;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}
th, td {
    padding: 10px;
    border: 1px solid #ddd;
    text-align: left;
}
th {
    background-color: #0D47A1;
    color: white;
}
.module {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}
.module-item {
    background: #FFFFFF;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}
.module-item:hover {
    transform: translateY(-5px);
}
.module-item img {
    width: 100px;
    height: 100px;
    margin-bottom: 10px;
}
.module-item h4 {
    font-size: 18px;
    color: #0D47A1;
}
.module-item p {
    font-size: 14px;
    color: #666;
}
@media (max-width: 768px) {
    .tabs {
        flex-direction: column;
    }
    .tab {
        width: 100%;
    }
    .container {
        margin-top: 80px;
    }
}
@keyframes aurora-move {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}