body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 1em 0;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 2.5em;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 1em;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

main {
    padding: 2em;
}

section {
    margin-bottom: 2em;
}

.reason {
    border: 1px solid #ddd;
    padding: 1em;
    border-radius: 8px;
    background-color: white;
    margin-bottom: 1em;
}

.reason h3 {
    margin-top: 0;
}

form {
    display: flex;
    flex-direction: column;
}

form label {
    margin-top: 1em;
}

form input, form textarea {
    padding: 0.5em;
    font-size: 1em;
    border: 1px solid #ddd;
    border-radius: 4px;
}

form button {
    margin-top: 1em;
    padding: 0.5em;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

form button:hover {
    background-color: #45a049;
}

.hidden {
    display: none;
}

footer {
    text-align: center;
    padding: 1em 0;
    background-color: #333;
    color: white;
}