body {
    font-family: 'Roboto', sans-serif;
    color: #ffffff;
    background: linear-gradient(135deg, #1a1a40, #333366, #4b0082);
    margin: 0;
    padding: 0;
}
header {
    text-align: center;
    padding: 50px 20px;
    background: rgba(0, 0, 0, 0.5);
}
h1, h2, h3 {
    font-weight: bold;
    text-shadow: 2px 2px 5px rgba(0,0,0,0.5);
}
.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
}
.module {
    background: rgba(51, 51, 102, 0.8);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.module:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0,0,0,0.5);
}
pre {
    background: #2e2e5e;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}
code {
    color: #00ffea;
    font-family: 'Fira Sans', sans-serif;
}
button {
    background: linear-gradient(to bottom, #6666cc, #333366);
    border: none;
    border-radius: 8px;
    color: #ffffff;
    padding: 10px 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3), inset 0 -4px 8px rgba(255,255,255,0.2);
    cursor: pointer;
    transition: all 0.3s ease;
}
button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.4), inset 0 -6px 12px rgba(255,255,255,0.3);
}
img {
    width: 100%;
    border-radius: 8px;
}
.footer {
    text-align: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.7);
}
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }
    .module {
        padding: 15px;
    }
}
@media (min-width: 1440px) {
    .container {
        max-width: 1200px;
        margin: 0 auto;
    }
}