body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f8f9fa;
    color: #333;
}

nav a {
    text-decoration: none;
    color: #0069d9;
    margin-right: 10px;
}

nav a:hover {
    text-decoration: underline;
}

#icerik {
    margin-top: 20px;
}

form label {
    font-weight: bold;
}

form input[type="text"],
form input[type="password"],
form textarea {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    box-sizing: border-box;
}

form input[type="submit"] {
    padding: 10px 20px;
    background-color: #0069d9;
    border: none;
    color: white;
    cursor: pointer;
}

form input[type="submit"]:hover {
    background-color: #004a9f;
}