/* ============================================================
 * Header Layout — Styles partagés entre visitor-header et admin-header
 * ============================================================ */

/* Navigation principale */
.nav-sticky {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* Logo */
.nav-logo {
    transition: transform 0.2s ease;
}

.nav-logo:hover {
    transform: scale(1.05);
}

/* Liens de navigation */
.nav-link {
    position: relative;
    transition: color 0.2s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: currentColor;
    transition: width 0.25s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Menu mobile */
.mobile-menu {
    transition: max-height 0.3s ease, opacity 0.3s ease;
    overflow: hidden;
}

.mobile-menu.closed {
    max-height: 0;
    opacity: 0;
}

.mobile-menu.open {
    max-height: 500px;
    opacity: 1;
}