/* ===== Desktop mega menu ===== */
@media (min-width: 992px) {
    .navbar-nav-desktop {
        align-items: center;
        gap: 0.15rem;
    }

    .dropdown-mega {
        position: static !important;
    }

    .dropdown-mega > .nav-link.dropdown-toggle::after {
        margin-left: 0.35em;
        vertical-align: 0.15em;
    }

    .mega-menu-panel {
        left: 0 !important;
        right: 0 !important;
        width: 100%;
        margin-top: 0 !important;
        padding: 0;
        border: none !important;
        border-radius: 0 !important;
        background: var(--bg-navbar-scrolled, rgba(7, 7, 20, 0.98)) !important;
        backdrop-filter: blur(20px);
        border-top: 1px solid var(--border-color) !important;
        border-bottom: 1px solid var(--border-color) !important;
        box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
        animation: megaFadeIn 0.2s ease;
    }

    .dropdown-mega:hover > .mega-menu-panel,
    .dropdown-mega.show > .mega-menu-panel {
        display: block;
    }

    .mega-menu-inner {
        max-width: 1140px;
        margin: 0 auto;
        padding: 1.5rem 1rem 1.75rem;
    }

    .mega-col-title {
        font-size: 0.7rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        color: var(--text-muted);
        margin-bottom: 0.75rem;
        padding-bottom: 0.35rem;
        border-bottom: 1px solid var(--border-color);
    }

    .mega-link {
        display: flex;
        align-items: flex-start;
        gap: 0.65rem;
        padding: 0.5rem 0.6rem;
        border-radius: var(--radius-sm, 8px);
        text-decoration: none;
        color: var(--text-secondary) !important;
        transition: background 0.15s, color 0.15s;
        margin-bottom: 0.15rem;
    }

    .mega-link:hover {
        background: var(--bg-glass-hover, rgba(99, 102, 241, 0.12));
        color: var(--text-primary) !important;
    }

    .mega-link-icon {
        width: 36px;
        height: 36px;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        font-size: 0.95rem;
    }

    .mega-link-title {
        font-weight: 600;
        font-size: 0.88rem;
        color: var(--text-primary);
        line-height: 1.2;
    }

    .mega-link-desc {
        font-size: 0.72rem;
        color: var(--text-muted);
        margin-top: 0.1rem;
        line-height: 1.3;
    }

    .mega-featured {
        background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(6, 182, 212, 0.08) 100%);
        border: 1px solid rgba(99, 102, 241, 0.25);
        border-radius: var(--radius-md, 12px);
        padding: 1rem;
        height: 100%;
    }

    .mega-featured .btn {
        font-size: 0.8rem;
    }
}

/* ===== User account dropdown (scroll + sticky logout) ===== */
@media (min-width: 992px) {
    #mainNavbar,
    #mainNavbar > .container,
    #mainNavbar .navbar-collapse {
        overflow: visible !important;
    }

    .navbar-nav .nav-item.dropdown {
        position: relative;
    }

    .user-account-menu {
        max-height: min(75vh, 28rem);
        overflow-x: hidden;
        overflow-y: auto;
        overscroll-behavior: contain;
        z-index: 1060;
    }
}

.user-account-menu .dropdown-logout-item {
    position: sticky;
    bottom: 0;
    z-index: 2;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    margin-top: 0.35rem;
    padding-top: 0.2rem;
    box-shadow: 0 -10px 20px rgba(0, 0, 0, 0.2);
}

.user-account-menu .dropdown-item.text-danger {
    color: var(--danger-light, #f87171) !important;
    font-weight: 600;
}

@keyframes megaFadeIn {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Mobile accordion menu ===== */
@media (max-width: 991.98px) {
    .navbar-collapse {
        max-height: calc(100vh - var(--navbar-height, 72px));
        overflow-y: auto;
        overflow-x: hidden;
        padding-bottom: 2.5rem;
        -webkit-overflow-scrolling: touch;
    }

    .mobile-nav-accordion {
        width: 100%;
        margin-bottom: 0.75rem;
    }

    .mobile-nav-accordion .accordion-item {
        background: transparent;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-sm, 8px) !important;
        margin-bottom: 0.5rem;
        overflow: hidden;
    }

    .mobile-nav-accordion .accordion-button {
        background: var(--bg-glass, rgba(30, 41, 59, 0.5));
        color: var(--text-primary);
        font-weight: 600;
        font-size: 0.95rem;
        padding: 0.85rem 1rem;
        box-shadow: none !important;
    }

    .mobile-nav-accordion .accordion-button:not(.collapsed) {
        background: rgba(99, 102, 241, 0.15);
        color: var(--primary-light, #818cf8);
    }

    .mobile-nav-accordion .accordion-button::after {
        filter: var(--navbar-toggler-filter, invert(1));
    }

    .mobile-nav-accordion .accordion-body {
        padding: 0.5rem 0.75rem 0.75rem;
        background: transparent;
    }

    .mobile-nav-section {
        font-size: 0.65rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.06em;
        color: var(--text-muted);
        padding: 0.5rem 0.5rem 0.25rem;
        margin-top: 0.35rem;
    }

    .mobile-nav-link {
        display: flex;
        align-items: center;
        gap: 0.6rem;
        padding: 0.55rem 0.5rem;
        color: var(--text-secondary) !important;
        text-decoration: none;
        font-size: 0.9rem;
        border-radius: 6px;
    }

    .mobile-nav-link:hover,
    .mobile-nav-link:focus {
        background: var(--bg-glass-hover);
        color: var(--text-primary) !important;
    }

    .mobile-nav-link i {
        width: 1.25rem;
        text-align: center;
        opacity: 0.85;
    }

    .mobile-nav-toplinks {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        padding: 0.5rem 0 0.75rem;
        border-bottom: 1px solid var(--border-color);
        margin-bottom: 0.75rem;
    }

    .mobile-nav-toplinks .btn {
        flex: 1 1 auto;
        min-width: calc(50% - 0.25rem);
        font-size: 0.85rem;
    }

    .navbar-nav.ms-auto {
        border-top: 1px solid var(--border-color);
        padding-top: 0.75rem;
        margin-top: 0.25rem;
        width: 100%;
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.35rem !important;
    }

    .navbar-nav.ms-auto > .nav-item.dropdown {
        width: 100% !important;
    }

    .navbar-nav.ms-auto > .nav-item.dropdown > .dropdown-toggle {
        width: 100%;
        justify-content: flex-start;
    }

    .user-account-menu {
        position: static !important;
        width: 100%;
        max-height: none;
        margin: 0.25rem 0 0 !important;
        transform: none !important;
    }

    .user-account-menu .dropdown-logout-item {
        position: static;
        box-shadow: none;
    }

    .notif-panel {
        position: fixed !important;
        left: 1rem !important;
        right: 1rem !important;
        top: auto !important;
        bottom: 1rem;
        width: auto !important;
        max-width: none !important;
    }
}

[data-theme="light"] .mega-menu-panel {
    background: var(--bg-navbar-scrolled) !important;
}

[data-theme="light"] .mobile-nav-accordion .accordion-button::after {
    filter: none;
}

/* ===== Homepage platform hub (mega menu highlights) ===== */
.home-mega-hub-section {
    padding: 3rem 0 4rem;
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.08) 0%, transparent 100%);
}

.home-mega-hub {
    background: var(--bg-card);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-xl, 24px);
    padding: 1.75rem 1.25rem 2rem;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(99, 102, 241, 0.1);
}

@media (min-width: 768px) {
    .home-mega-hub {
        padding: 2rem 1.75rem 2.25rem;
    }
}

.home-mega-hub .mega-col-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary-light, #a5b4fc);
    margin-bottom: 0.85rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--border-color);
}

.home-mega-hub .mega-link {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    padding: 0.55rem 0.65rem;
    border-radius: var(--radius-sm, 8px);
    text-decoration: none;
    color: var(--text-secondary) !important;
    transition: background 0.15s, color 0.15s, transform 0.15s;
    margin-bottom: 0.2rem;
}

.home-mega-hub .mega-link:hover {
    background: rgba(99, 102, 241, 0.14);
    color: var(--text-primary) !important;
    transform: translateX(4px);
}

.home-mega-hub .mega-link-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.95rem;
}

.home-mega-hub .mega-link-title {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.25;
}

.home-mega-hub .mega-link-desc {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 0.12rem;
    line-height: 1.35;
}

.home-mega-hub .mega-link--compact {
    padding: 0.45rem 0.65rem;
    align-items: center;
}

.home-mega-hub .mega-link--compact .mega-link-title {
    font-size: 0.88rem;
}

.home-mega-hub .mega-badge {
    display: inline-block;
    font-size: 0.62rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    margin-left: 0.35rem;
    vertical-align: middle;
    background: rgba(99, 102, 241, 0.25);
    color: var(--primary-light, #c7d2fe);
}

.home-mega-hub .mega-badge--hot {
    background: rgba(239, 68, 68, 0.25);
    color: #fca5a5;
}

.home-mega-hub .mega-badge--new {
    background: rgba(16, 185, 129, 0.25);
    color: #6ee7b7;
}

.home-mega-hub .mega-featured {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.18) 0%, rgba(6, 182, 212, 0.1) 100%);
    border: 1px solid rgba(99, 102, 241, 0.35);
    border-radius: var(--radius-md, 12px);
    padding: 1.15rem 1.1rem;
    height: 100%;
}

.home-mega-hub .mega-featured--career {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.12) 0%, rgba(99, 102, 241, 0.12) 100%);
    border-color: rgba(236, 72, 153, 0.3);
}

.home-mega-hub-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 1.5rem 0 1.25rem;
    opacity: 0.6;
}