/* Style du bouton d'import GPX (Look Leaflet standard) */
.btn-import-gpx {
    background-color: white;
    width: 30px;
    height: 30px;
    border-radius: 4px;
    box-shadow: 0 1px 5px rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 18px;
    transition: background 0.2s;
}

.btn-import-gpx:hover {
    background-color: #f4f4f4;
}

/* Version active quand un fichier est chargé (Fond vert subtil) */
.btn-import-gpx.active {
    background-color: #f9e2c0;
    color: white;
}

.btn-import-gpx.active:hover {
    background-color: #16a34a;
}