body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #f9f9f9;
}
.hero {
    background-color: #222;
    color: #fff;
    padding: 40px;
    text-align: center;
}
.summary, .gallery, .contact {
    padding: 20px;
    max-width: 800px;
    margin: auto;
}
.gallery img {
    width: 100%;
    max-width: 400px;
    margin: 10px;
}
form input, form textarea {
    width: 100%;
    padding: 10px;
    margin: 5px 0;
}
button {
    background-color: #444;
    color: white;
    padding: 10px 20px;
    border: none;
}