* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #fff;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

nav ul {
    list-style: none;
    display: flex; /* Change from 'block' to 'flex' */
    justify-content: center;
}

nav ul li {
    margin: 0 1rem;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    padding: 0.5rem 1rem;
    transition: background-color 0.3s;
}

nav ul li.active a, nav ul li a:hover {
    border-bottom: 2px solid #333;
}

main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1rem;
    text-align: center;
}

h1 {
    color: #333;
    margin-bottom: 1rem;
}

img {
    max-width: 100%;
    height: auto;
    margin: 1rem 0;
}

.image-gallery {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.image-gallery img {
    width: 30%;
    cursor: pointer;
    transition: transform 0.2s;
}

.image-gallery img:hover, .image-gallery img.active {
    transform: scale(1.1);
}