body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #1e1e2f, #333333);
    color: #ffffff;
    line-height: 1.8;
    overflow-x: hidden;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

header h1 {
    font-size: 1.5rem;
    font-weight: bold;
    color: #00ff99;
    text-transform: uppercase;
}

header .menu-icon {
    display: none;
    cursor: pointer;
    font-size: 2rem;
    color: #00ff99;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

nav ul li a {
    text-decoration: none;
    color: #ffffff;
    font-weight: bold;
    transition: color 0.3s ease-in-out;
}

nav ul li a:hover {
    color: #00ff99;
}

.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: radial-gradient(circle, rgba(0, 255, 153, 0.3), transparent),
                linear-gradient(135deg, #1e1e2f, #333333);
    animation: aurora-move 15s linear infinite;
}

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

.hero h1 {
    font-size: 3rem;
    font-weight: bold;
    color: #00ff99;
    text-shadow: 0 0 10px rgba(0, 255, 153, 0.8);
}

.hero p {
    font-size: 1.2rem;
    color: #ffffff;
    max-width: 600px;
    margin-top: 20px;
}

.content {
    padding: 100px 20px 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid #00ff99;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease-in-out;
}

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

.card img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 10px;
}

.card h2 {
    font-size: 1.5rem;
    color: #00ff99;
    margin-bottom: 10px;
}

.card p {
    color: #ffffff;
    font-size: 1rem;
}

code {
    display: block;
    background: rgba(0, 255, 153, 0.1);
    color: #00ff99;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    margin: 10px 0;
}

pre code {
    white-space: pre-wrap;
    word-wrap: break-word;
}

footer {
    background: #000000;
    color: #ffffff;
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    header nav ul {
        display: none;
    }

    header .menu-icon {
        display: block;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .content {
        grid-template-columns: 1fr;
    }
}