body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f9f9f9;
}

nav {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 10px;
}

nav a {
    text-decoration: none;
    color: #007AFF; /* iOS Blue */
    font-weight: 600;
}

header {
    text-align: center;
    padding: 40px 0;
}

h1 { color: #222; }

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

input, textarea, button {
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    background-color: #007AFF;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

footer {
    margin-top: 50px;
    font-size: 12px;
    text-align: center;
    color: #888;
}