:root {
    --main-bg-color: #1A1A2E;
    --accent-color: #454ADE;
    --highlight-color: #FFD700;
    --text-color: #FFFFFF;
    --secondary-color: #39FF14;
    --shadow-color: rgba(0, 0, 0, 0.2);
}

body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, var(--main-bg-color), var(--accent-color));
    color: var(--text-color);
    line-height: 1.6;
}

header {
    position: relative;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-color);
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 10%, transparent 10.01%) 0 0,
                radial-gradient(circle, rgba(255, 255, 255, 0.1) 10%, transparent 10.01%) 50px 50px;
    background-size: 100px 100px;
    animation: particle-motion 10s linear infinite;
    z-index: 1;
}

@keyframes particle-motion {
    0% { transform: translateX(-50%) translateY(-50%) rotate(0deg); }
    100% { transform: translateX(-50%) translateY(-50%) rotate(360deg); }
}

header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    font-weight: bold;
    z-index: 2;
    position: relative;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 200px;
    height: 100vh;
    background: linear-gradient(180deg, var(--main-bg-color), var(--accent-color));
    padding: 20px;
    box-shadow: 2px 0 10px var(--shadow-color);
    z-index: 10;
}

.navbar a {
    display: block;
    color: var(--text-color);
    text-decoration: none;
    margin: 15px 0;
    font-size: 1rem;
    transition: color 0.3s ease;
    rel: "nofollow";
}

.navbar a:hover {
    color: var(--highlight-color);
}

.container {
    display: flex;
    flex-wrap: wrap;
    margin-left: 220px;
    padding: 20px;
}

.module {
    flex: 1 1 calc(33.33% - 20px);
    margin: 10px;
    padding: 20px;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    border-radius: 10px;
    box-shadow: 0 4px 10px var(--shadow-color);
    transition: transform 0.3s ease;
}

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

.module img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.code-block {
    background: #1E1E1E;
    color: var(--highlight-color);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.4;
    margin: 20px 0;
}

@media (max-width: 768px) {
    .container {
        margin-left: 0;
    }

    .module {
        flex: 1 1 100%;
    }

    header h1 {
        font-size: 2rem;
    }
}