body {
    margin: 0;
    font-family: 'Open Sans', sans-serif;
    background: radial-gradient(circle, rgba(0, 116, 217, 0.8), transparent), linear-gradient(to bottom, #003366, #0074D9);
    color: #ffffff;
    overflow-x: hidden;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 51, 102, 0.9);
    padding: 1rem;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    font-size: 1.5rem;
    color: #FFC107;
    margin: 0;
}

header .cta-button {
    background-color: #FFC107;
    color: #003366;
    border: none;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

header .cta-button:hover {
    background-color: #FFA000;
    transform: scale(1.1);
}

.container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1rem;
    padding: 6rem 1rem 2rem;
    max-width: 1440px;
    margin: 0 auto;
}

.module {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.module:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.module-1 {
    grid-column: span 12;
    text-align: center;
}

.module-2 {
    grid-column: span 6;
}

.module-3 {
    grid-column: span 12;
}

.module h2 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    font-size: 1.5rem;
    color: #FFC107;
    margin-bottom: 1rem;
}

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

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.image-grid img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.image-grid img:hover {
    transform: scale(1.1);
}

.code-block {
    background: rgba(0, 0, 0, 0.7);
    color: #FFC107;
    padding: 1rem;
    border-radius: 5px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    overflow-x: auto;
    margin: 1rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

table th, table td {
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: 0.5rem;
    text-align: left;
    color: #FFC107;
}

table th {
    background: rgba(0, 0, 0, 0.5);
}

footer {
    text-align: center;
    padding: 2rem;
    background: rgba(0, 0, 0, 0.8);
    color: #FFC107;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.2rem;
    }

    .module-2 {
        grid-column: span 12;
    }
}

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

.animation-bg {
    animation: aurora-move 15s linear infinite;
}