/* public/css/custom-create-site.css */
.card-form {
    max-width: 900px;
    margin: 30px auto;
    padding: 30px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.card-header {
    font-size: 18px;
    font-weight: bold;
    color: #273170;
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ... tout le reste identique */