body {
    font-family: Arial, sans-serif;
    margin: 40px;
    background: #f5f5f5;
}

h1 {
    margin-bottom: 20px;
}

nav a {
    display: inline-block;
    margin: 5px;
    padding: 8px 12px;
    background: #ddd;
    text-decoration: none;
    border-radius: 4px;
    color: #000;
}

img {
    max-width: 100%;
    height: auto;
}

form {
    display: flex;
    flex-direction: column;
    max-width: 300px;
}

form input {
    margin-bottom: 10px;
    padding: 8px;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}

.gallery img {
    width: 100%;
    border-radius: 4px;
}
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 6px;
    box-shadow: 0 0 20px #000;
}

.lightbox.show {
    display: flex;
}