body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #000428, #004e92);
    color: white;
    line-height: 1.6;
    padding: 20px;
    overflow-x: hidden;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

header h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    margin: 0;
    color: #00ff00;
    text-shadow: 0 0 10px #00ff00;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-size: 1rem;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #00ff00;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 80px;
}

.item {
    background: #1a1a1a;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease;
}

.item:hover {
    transform: translateY(-5px);
}

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

h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: bold;
    color: #00ff00;
}

p {
    font-family: 'Roboto', sans-serif;
    color: #ccc;
}

pre {
    background: rgba(0, 255, 0, 0.1);
    border: 1px solid #00ff00;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
}

code {
    font-family: 'Courier New', monospace;
    color: #00ff00;
}

button {
    background: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

button:hover {
    background: #0056b3;
}

button:active {
    transform: scale(0.98);
}

.neon {
    position: relative;
    color: #00ff00;
    text-shadow: 0 0 10px #00ff00, 0 0 20px #00ff00;
}

.neon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: rgba(0, 255, 0, 0.5);
    filter: blur(10px);
    transform: translate(-50%, -50%);
    z-index: -1;
}

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }

    header h1 {
        font-size: 1.2rem;
    }
}