body {
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
}

.container {
    max-width: 600px;
    margin: 30px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 8px rgba(0,0,0,0.1);
}

h3#titre {
    text-align: center;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input:disabled,
.form-group select:disabled {
    background-color: #e0e0e0;
}

button {
    padding: 10px 20px;
    background-color: #0056b3;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #003f7f;
}

* {
    box-sizing: border-box;
}

body {
    font-family: Calibri, Arial, sans-serif;
    margin: 0;
}

#section1 {
    width: 90%;
    margin: auto;
}

.titre {
    text-align: center;
    margin-top: 20px;
}

.texte {
    text-align: justify;
}

.table-responsive {
    overflow-x: auto;
    margin-top: 20px;
}

.offre-table {
    width: 100%;
    border-collapse: collapse;
}

.offre-table td {
    border: 1px solid #ddd;
    padding: 12px;
}

.offre-table tr:nth-child(even) {
    background-color: #f2f2f2;
}

.btn {
    display: inline-block;
    padding: 8px 15px;
    background-color: #0066cc;
    color: white;
    text-decoration: none;
    border-radius: 5px;
}

.btn:hover {
    background-color: #004999;
}

.secondary {
    background-color: #28a745;
}

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

/* 📱 RESPONSIVE */
@media screen and (max-width: 768px) {

    .offre-table td {
        display: block;
        width: 100%;
    }

    .offre-table tr {
        margin-bottom: 15px;
        display: block;
        border: 1px solid #ccc;
    }

}