body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}
header {
    background: #222;
    color: white;
    padding: 20px 0;
    text-align: center;
}
.container {
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
}
section {
    padding: 20px 0;
}
form {
    display: flex;
    flex-direction: column;
}
input, textarea {
    margin-bottom: 10px;
    padding: 10px;
    font-size: 14px;
}
button {
    padding: 10px;
    background: #0073e6;
    color: white;
    border: none;
    cursor: pointer;
}
button:hover {
    background: #005bb5;
}
footer {
    background: #f5f5f5;
    text-align: center;
    padding: 10px 0;
    font-size: 14px;
}