/* ================================================================
   NAVIGATION FMV-UNILU — Design Institutionnel
   Bords carrés, accent or, 2 niveaux
   ================================================================ */

/* --- Barre de recherche globale (sous le menu) --- */
.search-subbar {
    background: #f0f3f9;
    border-bottom: 1px solid rgba(0, 35, 102, 0.12);
    padding: 7px 0;
    align-items: center;
}
.search-subbar-form { width: 100%; }
.search-subbar-inner {
    display: flex;
    align-items: center;
    background: #fff;
    border: 1px solid rgba(0, 35, 102, 0.2);
    height: 36px;
    max-width: 680px;
    margin: 0 auto;
}
.search-subbar-label {
    font-size: 0.72rem;
    color: var(--unilu-blue);
    font-weight: 600;
    white-space: nowrap;
    padding: 0 12px;
    border-right: 1px solid rgba(0, 35, 102, 0.12);
    opacity: 0.75;
    flex-shrink: 0;
}
.search-subbar-input {
    flex: 1;
    border: none;
    outline: none;
    padding: 0 14px;
    font-size: 0.82rem;
    color: #333;
    background: transparent;
}
.search-subbar-btn {
    background: var(--unilu-blue);
    color: #fff;
    border: none;
    height: 36px;
    width: 44px;
    cursor: pointer;
    font-size: 0.84rem;
    border-radius: 0;
    transition: background 0.16s, color 0.16s;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.search-subbar-btn:hover {
    background: var(--unilu-gold);
    color: #00123a;
}

/* --- Barre supérieure institutionnelle --- */
.topbar-strip {
    background-color: #00123a;
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.76rem;
    padding: 5px 0;
    border-bottom: 1px solid rgba(227, 178, 60, 0.28);
    letter-spacing: 0.01em;
}
.topbar-strip a {
    color: rgba(255, 255, 255, 0.72);
    text-decoration: none;
    transition: color 0.18s;
}
.topbar-strip a:hover { color: var(--unilu-gold); }
.topbar-sep {
    color: rgba(227, 178, 60, 0.45);
    margin: 0 10px;
    font-weight: 300;
}
.topbar-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border: 1px solid rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.6);
    font-size: 0.68rem;
    transition: all 0.18s;
    border-radius: 0 !important;
    margin-left: 4px;
}
.topbar-social a:hover {
    background: var(--unilu-gold);
    border-color: var(--unilu-gold);
    color: #00123a;
}

/* --- Boutons auth dans la topbar --- */
.topbar-auth-btn {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    font-size: 0.72rem;
    font-weight: 500;
    color: rgba(255,255,255,0.75);
    border: 1px solid rgba(255,255,255,0.2);
    text-decoration: none;
    border-radius: 0;
    letter-spacing: 0.02em;
    transition: all 0.16s ease;
    white-space: nowrap;
    height: 22px;
}
.topbar-auth-btn:hover {
    color: #fff;
    border-color: rgba(255,255,255,0.5);
    background: rgba(255,255,255,0.07);
}
.topbar-auth-btn.topbar-auth-admin {
    border-color: rgba(227,178,60,0.55);
    color: var(--unilu-gold);
}
.topbar-auth-btn.topbar-auth-admin:hover {
    background: var(--unilu-gold);
    color: #00123a;
    border-color: var(--unilu-gold);
}

/* --- Navbar principale (structure bicolonne) --- */
.navbar {
    padding: 0;
    border-bottom: 3px solid var(--unilu-gold);
    box-shadow: 0 2px 12px rgba(0,0,0,0.25) !important;
    background: transparent !important;
    flex-wrap: nowrap;
    align-items: stretch;
}

/* ─── Colonne gauche : fond blanc, logo UNILU ─── */
.navbar-unilu-panel {
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 190px;
    flex-shrink: 0;
    border-right: 3px solid var(--unilu-gold);
}
.navbar-unilu-panel a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    text-decoration: none;
}
.navbar-logo-unilu {
    height: 48px;
    width: auto;
}

/* ─── Colonne droite : fond bleu, FMV + nav ─── */
.navbar-main-panel {
    background: var(--unilu-blue);
    flex: 1;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    padding: 0 20px;
    min-height: 70px;
}

/* Brand / logo FMV */
.navbar-brand {
    padding: 8px 0;
}
/* Logo FMV */
.navbar-logo {
    height: 46px;
    width: auto;
    filter: drop-shadow(0 1px 3px rgba(0,0,0,0.3));
    flex-shrink: 0;
}
.brand-name {
    display: block;
    font-size: 0.97rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0.01em;
    color: #fff;
}
.brand-sub {
    display: block;
    font-size: 0.68rem;
    opacity: 0.72;
    font-weight: 400;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.75);
    margin-top: 2px;
}

/* --- Nav links (items principaux) --- */
.navbar-nav .nav-item .nav-link {
    border-radius: 0 !important;
    padding: 1.1rem 0.82rem !important;
    font-size: 0.855rem;
    font-weight: 500;
    letter-spacing: 0.025em;
    border-bottom: 3px solid transparent;
    color: rgba(255,255,255,0.88) !important;
    transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
    white-space: nowrap;
    position: relative;
}
.navbar-nav .nav-item .nav-link:hover,
.navbar-nav .nav-item .nav-link:focus {
    background-color: rgba(255,255,255,0.07);
    border-bottom-color: var(--unilu-gold);
    color: #fff !important;
}
.navbar-nav .nav-item.active > .nav-link,
.navbar-nav .nav-item .nav-link.active {
    background-color: rgba(227,178,60,0.1);
    border-bottom-color: var(--unilu-gold);
    color: var(--unilu-gold) !important;
}

/* --- Actions droite (Admin, Connexion) --- */
.navbar-nav-actions {
    align-items: center;
    gap: 4px;
}
.navbar-nav-actions .nav-link {
    border-radius: 0 !important;
    font-size: 0.82rem;
    font-weight: 500;
    padding: 0.45rem 0.85rem !important;
    border: 1px solid rgba(255,255,255,0.22);
    color: rgba(255,255,255,0.85) !important;
    transition: all 0.18s ease;
    white-space: nowrap;
    border-bottom: 1px solid rgba(255,255,255,0.22) !important;
}
.navbar-nav-actions .nav-link:hover {
    border-color: var(--unilu-gold) !important;
    color: var(--unilu-gold) !important;
    background-color: rgba(227,178,60,0.08);
}
.navbar-nav-actions .nav-link.btn-admin {
    border-color: var(--unilu-gold) !important;
    color: var(--unilu-gold) !important;
    background: rgba(227,178,60,0.07);
}
.navbar-nav-actions .nav-link.btn-admin:hover {
    background: var(--unilu-gold) !important;
    color: #001a40 !important;
}

/* --- Dropdowns --- */
.dropdown-menu {
    border-radius: 0 !important;
    border: none !important;
    border-top: 3px solid var(--unilu-gold) !important;
    box-shadow: 0 10px 32px rgba(0,18,58,0.18) !important;
    padding: 8px 0;
    margin-top: 0 !important;
    min-width: 224px;
    animation: dropFadeIn 0.14s ease;
}
.dropdown-item {
    border-radius: 0 !important;
    padding: 8px 20px;
    font-size: 0.86rem;
    color: #162040;
    border-left: 3px solid transparent;
    transition: all 0.14s ease;
}
.dropdown-item:hover,
.dropdown-item:focus {
    background-color: #eef3fb;
    color: var(--unilu-blue) !important;
    border-left-color: var(--unilu-gold);
}
.dropdown-header {
    font-weight: 700;
    color: var(--unilu-blue);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 10px 20px 4px;
    opacity: 0.85;
}
.dropdown-divider {
    margin: 5px 0;
    border-color: #e4eaf3;
    border-radius: 0 !important;
}

/* Hover trigger desktop */
@media (min-width: 992px) {
    .navbar .dropdown:hover > .dropdown-menu {
        display: block;
    }
}

@keyframes dropFadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* --- Toggler (mobile) --- */
.navbar-toggler {
    border-radius: 0 !important;
    border-color: rgba(255,255,255,0.3);
    padding: 6px 10px;
}
.navbar-toggler:focus { box-shadow: none; }

/* --- Responsive mobile --- */
@media (max-width: 991.98px) {
    .topbar-strip { display: none; }

    .navbar-unilu-panel { width: 100px; }
    .navbar-unilu-panel a { padding: 6px 12px; }
    .navbar-logo-unilu { height: 36px; }
    .navbar-main-panel { padding: 0 10px; min-height: 56px; }
    .navbar-logo { height: 38px; }

    .navbar-nav .nav-item .nav-link {
        border-bottom: none !important;
        border-left: 3px solid transparent !important;
        padding: 0.7rem 1rem !important;
    }
    .navbar-nav .nav-item .nav-link:hover {
        border-left-color: var(--unilu-gold) !important;
        background: rgba(255,255,255,0.06);
    }

    .dropdown-menu {
        border-top: none !important;
        border-left: 3px solid var(--unilu-gold) !important;
        box-shadow: none !important;
        background: rgba(0,10,35,0.6) !important;
        margin-left: 1rem;
        animation: none;
    }
    .dropdown-item { color: rgba(255,255,255,0.82); }
    .dropdown-item:hover { background: rgba(255,255,255,0.08) !important; color: #fff !important; }
    .dropdown-header { color: var(--unilu-gold); }

    .navbar-nav-actions {
        margin-top: 8px;
        padding-top: 8px;
        border-top: 1px solid rgba(255,255,255,0.12);
        flex-direction: row;
        flex-wrap: wrap;
        gap: 6px;
        padding-bottom: 8px;
    }
    .navbar-nav-actions .nav-link {
        padding: 0.4rem 0.75rem !important;
    }
}