body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.container {
    background: #fff;
    padding: 2em;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 500px;
}

h1 {
    text-align: center;
    color: #444;
    margin-bottom: 1em;
}

#qr-reader-container {
    margin-bottom: 1.5em;
    text-align: center;
}

#qr-reader {
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 1em;
    display: none; /* Caché par défaut */
}

.form-group {
    margin-bottom: 1em;
}

label {
    display: block;
    margin-bottom: 0.5em;
    font-weight: bold;
}

input[type="text"],
input[type="tel"] {
    width: 100%;
    padding: 0.8em;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

input[readonly] {
    background-color: #e9ecef;
}

button {
    width: 100%;
    padding: 1em;
    border: none;
    border-radius: 4px;
    color: #fff;
    font-size: 1em;
    cursor: pointer;
    transition: background-color 0.3s;
}

#start-scan-btn {
    background-color: #007bff;
}

#start-scan-btn:hover {
    background-color: #0056b3;
}

#submit-btn {
    background-color: #28a745;
}

#submit-btn:hover {
    background-color: #218838;
}

#feedback-message {
    text-align: center;
    margin-top: 1em;
    font-weight: bold;
}