body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1 {
    color: #4CAF50;
}

#formContainer {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

input[type="text"], input[type="file"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
}

button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

#status {
    margin: 20px 0;
    padding: 10px;
    color: #fff;
    background-color: #4CAF50;
    border-radius: 4px;
    text-align: center;
    display: none;
}

#progressContainer {
    width: 100%;
    background-color: #f4f4f4;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin-top: 20px;
    overflow: hidden;
}

#progressBar {
    height: 30px;
    background-color: #4CAF50;
    width: 0;
    transition: width 0.4s ease;
}

#receivedFile {
    margin-top: 20px;
    text-align: center;
}

a {
    color: #4CAF50;
    text-decoration: none;
    font-weight: bold;
}