body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.login-form, .upload-form, .file-list {
    background-color: #fff;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    width: 300px;
}

h2 {
    margin-top: 0;
}

input[type="text"], input[type="password"], input[type="file"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    font-size: 16px;
    cursor: pointer;
}

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

.error {
    color: red;
}

#progressWrapper {
    width: 100%;
    background-color: #f3f3f3;
    border: 1px solid #ccc;
    border-radius: 5px;
    overflow: hidden;
    margin-top: 10px;
}

#progressBar {
    width: 0%;
    height: 20px;
    background-color: #007bff;
}

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

.file-list li {
    margin: 10px 0;
}

button.delete, button.rename {
    width: auto;
    padding: 5px 10px;
    margin-left: 10px;
}

#renameModal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}