/* Style global – moderne et épuré */
body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: #f8f9fa;
}
.navbar-brand {
    font-weight: 700;
}
.hero {
    background: linear-gradient(135deg, #007bff, #6c757d);
    color: #fff;
    padding: 4rem 0;
    text-align: center;
}
.hero h1 {
    font-size: 2.5rem;
}
.hero p {
    font-size: 1.2rem;
}
.btn-primary {
    background-color: #0069d9;
    border-color: #0062cc;
}