body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #000;
    color: #fff;
}
header {
    background: #ffcc00;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    height: 50px;
}
nav a {
    color: #000;
    margin: 0 10px;
    text-decoration: none;
    font-weight: bold;
}
main {
    padding: 20px;
}
.hero {
    text-align: center;
    margin-top: 50px;
}
form input, form textarea {
    width: 100%;
    padding: 10px;
    margin: 5px 0;
}
button {
    background: #ffcc00;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-weight: bold;
}
footer {
    background: #222;
    text-align: center;
    padding: 10px;
    margin-top: 20px;
}
@media screen and (max-width: 600px) {
    nav {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
}