body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background: #f4f6f8;
    color: #333;
}
header {
    background: #4a5a66;
    color: #fff;
    padding: 2rem;
    text-align: center;
}
.logo {
    max-width: 100px;
    display: block;
    margin: 0 auto 1rem;
}
nav {
    background: #3a4752;
    display: flex;
    justify-content: center;
    padding: 0.5rem;
}
nav a {
    color: white;
    margin: 0 1rem;
    text-decoration: none;
    font-weight: bold;
}
nav a:hover {
    text-decoration: underline;
}
section {
    padding: 2rem;
    max-width: 900px;
    margin: auto;
}
form {
    display: flex;
    flex-direction: column;
    max-width: 400px;
}
form input, form textarea {
    margin-bottom: 1rem;
    padding: 0.5rem;
    border: 1px solid #ccc;
}
button {
    padding: 0.5rem;
    background: #4a5a66;
    color: white;
    border: none;
}
footer {
    background: #eee;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
}
ul {
    list-style: disc;
    margin-left: 2rem;
}