body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: black;
    color: #333;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

header {
    background-color: black;
    color: white;
    text-align: center;
    padding: 20px 0;
    font-size: 1.1rem;
}

h1 {
    margin: 0;
    font-size: 36px;
    font-family: 'Poppins', sans-serif;
}

nav {
    background-color: rgba(0, 0, 0, 0.8);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

nav ul {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
    padding: 1rem 0;
    list-style: none;
    background-color: black;
}

nav ul li {
    padding: 0 1rem;
    position: relative;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease, transform 0.2s ease;
}

nav ul li a:hover {
    background-color: #f1c40f;
    color: black;
    transform: scale(1.05);
}

nav ul li a.active {
    background-color: #e83e8c;
    color: white;
}

nav ul li:hover .dropdown {
    opacity: 1;
    visibility: visible;
}

.container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
}

.category {
    margin-bottom: 40px;
}

.category h2 {
    font-size: 28px;
    color: white;
    border-bottom: 2px solid aqua;
    padding-bottom: 10px;
}

.command {
    background-color: #fff;
    border-radius: 8px;
    margin-bottom: 20px;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.command h3 {
    color: black;
    font-size: 24px;
    margin-bottom: 10px;
}

.command p {
    font-size: 16px;
    line-height: 1.6;
}

.command code {
    background-color: #f7f7f7;
    padding: 5px 10px;
    border-radius: 5px;
    font-family: monospace;
    color: #e83e8c;
}

footer {
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    font-size: 1.1rem;
}

footer a {
    color: white;
    text-decoration: none;
    padding: 0.5rem;
    margin: 0 0.5rem;
}

footer a:hover {
    color: #f1c40f;
    text-decoration: underline;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 28px;
    }

    nav ul {
        flex-direction: column;
        padding: 10px;
    }

    .container {
        padding: 10px;
    }

    .category h2 {
        font-size: 24px;
    }

    .command {
        padding: 15px;
    }

    footer {
        font-size: 1rem;
    }
}

nav ul li a:focus {
    outline: 2px solid #f1c40f;
    outline-offset: 4px;
}

footer a:focus {
    outline: 2px solid #f1c40f;
    outline-offset: 4px;
}

nav ul li a i {
    margin-right: 8px;
}