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

header {
    background: #333;
    color: #fff;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

header .logo {
    width: 80px;
    height: auto;
}

header h1 {
    margin: 0;
    font-size: 1.5em;
}

nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 15px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
}

#banner {
    width: 100%;
}

.banner-img {
    width: 100%;
    height: auto;
}

main {
    padding: 20px;
}

section {
    margin-bottom: 30px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 400px;
}

input, textarea, button {
    padding: 10px;
    font-size: 1em;
}

button {
    background: #333;
    color: #fff;
    border: none;
    cursor: pointer;
}

button:hover {
    background: #555;
}

footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    margin-top: 20px;
}

@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        align-items: center;
    }
}