body {
    background-color: #e6f0ff; /* Bleu pastel pour combler les espaces */
    margin: 0;
    font-family: Arial, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}
ul {
    list-style-type: none;
    padding: 0;
}
li {
    background: #f4f4f4cd;
    margin: 5px 0;
    padding: 10px;
    border-radius: 4px;
}

.bande-haut {
    background-color: #ffffff; /* Bleu pastel */
    color: #333;
    text-align: center;
    padding: 10px 0;
    font-family: Arial, sans-serif;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 10;
    top: 60px;
    border-radius: 4px;
}

/* Barre en haut (header) */
.whatsapp-header {
    background-color: #075e54;
    color: white;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 50px;
    z-index: 30;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    background-color: #ffffff00;
}

.header-title {
    font-weight: bold;
    margin: 0;
    font-size: 1.1em;
}

.header-right {
    margin-right: 20px;
}

.header-right i {
    font-size: 1.3em;
    cursor: pointer;
    color: white;
}

/* Conteneur des messages */
.messages {
    flex: 1;
    overflow-y: auto;
    padding: 70px 10px 60px 10px; /* Marge pour l'en-tête et le pied de page */
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Bulle de message reçue (à gauche) */
.message-recu {
    background-color: white;
    color: #121212;
    padding: 10px 15px;
    border-radius: 7.5px 7.5px 7.5px 0;
    max-width: 70%;
    word-wrap: break-word;
    align-self: flex-start;
    box-shadow: 0 1px 0.5px rgba(0, 0, 0, 0.13);
}

/* Bulle de message envoyé (à droite) */
.message-envoye {
    background-color: #dcf8c6;
    color: #121212;
    padding: 10px 15px;
    border-radius: 7.5px 7.5px 0 7.5px;
    max-width: 70%;
    word-wrap: break-word;
    align-self: flex-end;
    box-shadow: 0 1px 0.5px rgba(0, 0, 0, 0.13);
}