.upload-container {
    width: 60%;
    margin: 0 auto;
    padding: 20px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
}

.upload-section {
    margin-bottom: 20px;
}

.upload-input {
    display: block;
    margin: 10px 0;
    padding: 10px;
}

.file-size-info {
    font-size: 0.9em;
    color: #555;
}

.btn-upload {
    background-color: #007BFF;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.progress-bar {
    position: relative;
    width: 100%;
    height: 20px;
    background-color: #E0E0E0;
    border-radius: 10px;
    margin: 20px 0;
}

.progress-bar-fill {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;  /* Initial width 0, can be changed using JavaScript during upload */
    background-color: #007BFF;
    border-radius: 10px;
}