body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.container {
    max-width: 600px;
    margin: 50px auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

h1 {
    text-align: center;
    color: #333;
}

form {
    text-align: center;
}

input[type="file"] {
    display: none; /* Masquer l'input file */
}

.custom-file-btn {
    background-color: #3498db;
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-bottom: 20px;
}

button {
    background-color: #34db75;
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 20px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #27ae60;
}

#progress-container {
    display: none;
    margin-top: 20px;
}

#progress-bar {
    background-color: #2ecc71;
    height: 20px;
    border-radius: 4px;
    width: 0;
    transition: width 0.3s;
}

#progress-percent {
    margin-top: 10px;
    font-size: 14px;
    color: #333;
}