body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    line-height: 1.6;
}

header {
    background-color: #d32f2f;
    color: #fff;
    padding: 1em 0;
    text-align: center;
}

.logo img {
    max-width: 150px;
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    background-color: #333;
}

nav ul li {
    display: inline;
}

nav ul li a {
    color: white;
    padding: 1em;
    display: inline-block;
    text-decoration: none;
}

nav ul li a:hover {
    background-color: #575757;
}

main {
    padding: 2em;
}

section {
    margin: 1em 0;
    padding: 2em;
    background-color: #fff;
}

.gallery {
    display: flex;
    flex-wrap: wrap;
}

.gallery img {
    max-width: 30%;
    margin: 5px;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1em 0;
    position: fixed;
    width: 100%;
    bottom: 0;
}