body {
    background-color: #543210; /* Ton code couleur */
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    padding: 20px;
}

.container {
    background-color: white; /* Le formulaire reste blanc pour être lisible */
    max-width: 700px;
    width: 100%;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 3px solid #543210;
    padding-bottom: 10px;
    margin-bottom: 25px;
}

h1 { font-size: 1.2rem; color: #543210; margin: 0; }

fieldset {
    border: 1px solid #ddd;
    border-radius: 5px;
    margin-bottom: 20px;
    padding: 15px;
}

legend { font-weight: bold; color: #543210; padding: 0 10px; }

.row { display: flex; gap: 10px; margin-bottom: 10px; }

input, select {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    width: 100%;
    box-sizing: border-box; /* Pour que le padding ne dépasse pas */
}

.btn-envoyer {
    background-color: #28a745; /* Bouton vert */
    color: white;
    padding: 15px;
    border: none;
    border-radius: 4px;
    width: 100%;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.btn-envoyer:hover {
    background-color: #1e7e34;
}

.mentions { font-size: 0.8rem; color: #666; margin-bottom: 20px; }