body {
    background-color: #000;
    color: #0f0;
    font-family: 'Courier New', Courier, monospace;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

h1, h2 {
    border-bottom: 1px solid #0f0;
    padding-bottom: 10px;
}

nav {
    margin-bottom: 20px;
}

nav a {
    color: #0f0;
    text-decoration: none;
    margin-right: 15px;
}

nav a:hover {
    text-decoration: underline;
}

.content {
    line-height: 1.6;
}

.prompt::before {
    content: "$ ";
}

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

.gallery-item {
    position: relative;
    overflow: hidden;
    border: 1px solid #0f0;
    aspect-ratio: 1;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%) sepia(100%) hue-rotate(70deg);
    transition: all 0.3s ease;
}

.gallery-item:hover img {
    filter: none;
}

.gallery-item::before {
    content: attr(data-filename);
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.7);
    color: #0f0;
    padding: 5px;
    font-size: 12px;
    text-align: center;
}

#output {
    white-space: pre-wrap;
    margin-bottom: 20px;
}

#input-line {
    display: flex;
    margin-top: 10px;
}

#input-prompt {
    margin-right: 5px;
}

#user-input {
    flex-grow: 1;
    background-color: transparent;
    border: none;
    color: #0f0;
    font-family: 'Courier New', Courier, monospace;
    font-size: 16px;
    outline: none;
}

footer {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
}