:root {
    --nav-bg: #10312B;
    --nav-text: #FFFFFF;
    --nav-text-active: #52B788;
    --nav-border: rgba(255,255,255,0.15);
    --nav-dropdown-bg: rgba(255,255,255,0.96);
    --nav-dropdown-color: #1b4332;
    --nav-dropdown-border: rgba(0,0,0,0.1);
    --nav-logo-max-height: 55px;
}

/* Navbar: single source of truth for all sections */
.main-header .navbar,
.navbar {
    background-color: var(--nav-bg);
    border-bottom: 1px solid var(--nav-border);
    padding: 0.65rem 1rem;
    width: 100%;
    border-radius: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.12);
}

.navbar-brand img {
    max-height: var(--nav-logo-max-height);
    width: auto;
    display: block;
}

.nav-logo {
    margin: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-toggler {
    border-color: rgba(255,255,255,0.45);
}

.navbar-toggler-icon {
    filter: invert(1);
}

.navbar-nav .nav-link {
    color: var(--nav-text);
    font-weight: 600;
    transition: color 0.25s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--nav-text-active);
}

.navbar-nav .dropdown-menu {
    background-color: var(--nav-dropdown-bg);
    border: 1px solid var(--nav-dropdown-border);
}

.navbar-nav .dropdown-menu .dropdown-item {
    color: var(--nav-dropdown-color);
}

.navbar-nav .dropdown-menu .dropdown-item:hover,
.navbar-nav .dropdown-menu .dropdown-item.active {
    color: var(--nav-text-active);
    background-color: rgba(82, 183, 136, 0.12);
}

.nav-logo-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.nav-logo-right img {
    max-height: var(--nav-logo-max-height);
    width: auto;
    display: block;
}

@media (max-width: 991.98px) {
    .navbar {
        padding: 0.5rem 0.75rem;
    }

    .navbar-nav .nav-link {
        color: var(--nav-text);
        padding: 0.75rem 0;
        text-align: center;
    }

    .navbar-nav .dropdown-menu {
        position: static;
        float: none;
        width: 100%;
        border: 0;
        box-shadow: none;
    }

    .nav-logo-right {
        margin-top: 1rem;
        justify-content: center;
    }
}