/* Ouverture du menu au survol */
.nav-item.dropdown:hover > .dropdown-menu {
    display: block;
}

/* Évite que le menu disparaisse trop facilement */
.nav-item.dropdown {
    position: relative;
}

/* Animation légère */
.nav-item.dropdown > .dropdown-menu {
    margin-top: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(5px);
    transition: opacity 0.15s ease,
    transform 0.15s ease,
    visibility 0.15s ease;
}

.nav-item.dropdown:hover > .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.site-header {
    position: relative;
    padding: 1.25rem 1.5rem 1.75rem;
    text-align: center;
    background: linear-gradient(
            to bottom,
            rgba(255, 255, 255, 0.55) 0%,
            rgba(255, 255, 255, 0.15) 55%,
            transparent 100%
    );
}