body {
    font-family: Arial, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #ffffff;
    color: #333333;
}

header {
    text-align: center;
    margin-bottom: 20px;
}

#login, #files {
    text-align: center;
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

h2 {
    color: #007bff;
}

input {
    display: block;
    margin: 10px auto;
    padding: 8px;
    width: 200px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    padding: 10px 20px;
    margin: 10px;
    cursor: pointer;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
}

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

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

li {
    margin: 5px 0;
}

label {
    cursor: pointer;
}

details {
    margin-left: 20px;
}

summary {
    cursor: pointer;
    font-weight: bold;
    color: #007bff;
}

summary:hover {
    color: #0056b3;
}

footer {
    text-align: center;
    background-color: #343a40;
    color: white;
    padding: 10px;
    margin-top: 20px;
    border-radius: 4px;
}

footer a {
    color: #007bff;
}