body {
    padding-top: var(--bs-navbar-height, 70px);
    padding-bottom: var(--bs-navbar-height, 70px);
}

body h1,
body h2,
body h3,
body h4,
body h5 {
    font-weight: normal;
}

.titre {
    padding: .5rem;
    margin: .75rem 0;
    text-align: center;
}

div.col {
    padding: 2px;
}

.page-center {
    margin-top: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f8f9fa;
}

.alert-card {
    width: 100%;
    max-width: 400px;
    padding: 20px;
    background-color: #fff;
    border-radius: .375rem;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.alert-card h1 {
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.alert-card p {
    margin-bottom: 20px;
    color: #555;
}

.alert-card .btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: .375rem;
    text-decoration: none;
    background-color: #0d6efd;
    color: #fff;
}

.alert-card .btn.secondary {
    background-color: #6c757d;
}