/* Style global */
body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #eaeaea;
}

/* Conteneur principal */
.container {
    text-align: center;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
    width: 90%;
    max-width: 900px;
    transition: transform 0.3s ease-in-out;
}

/* Animation du conteneur lors du survol */
.container:hover {
    transform: scale(1.02);
}

/* Style du bouton */
button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 10px;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

button:hover {
    background-color: #0056b3;
    transform: scale(1.05);
}

/* Style pour le champ de fichier */
input[type="file"] {
    display: block;
    margin: 20px auto;
}

/* Style pour le conteneur du graphique */
#chartContainer {
    margin-top: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Style de la page de chargement */
.loading {
    display: none;
    text-align: center;
    margin-top: 20px;
}

.loading.active {
    display: block;
}