body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 350px;
    position: relative;
}

h2 {
    color: #333;
}

.file-label {
    display: inline-block;
    background: #007bff;
    color: white;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    margin-bottom: 15px;
}

.file-input {
    display: none;
}

.progress-container {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 20px auto;
    display: none;
}

.progress-circle {
    transform: rotate(-90deg);
    transform-origin: center;
}

.progress-circle circle {
    stroke-width: 8;
    stroke-dasharray: 314;
    stroke-dashoffset: 314;
    transition: stroke-dashoffset 0.5s linear;
    stroke: #007bff;
}

#progress-text {
    font-size: 16px;
    fill: #007bff;
    font-weight: bold;
}

.convert-btn {
    background: #007bff;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    display: block;
    width: 100%;
    margin-top: 10px;
    display: none; /* Hidden by default */
}

.convert-btn:hover {
    background: #0056b3;
}

#statusMessage {
    margin-top: 10px;
    font-size: 14px;
    color: green;
}