.category-nav {
    border-bottom: 1px solid var(--light-grey);
}

.category-nav .nav-item {
    display: flex;
    align-items: center;
    position: relative;
}

.category-nav .nav-link {
    color: var(--dark-blue);
    font-weight: 500;
    padding: 0.5rem 0.75rem 0.5rem 1rem;
    border-bottom: 3px solid transparent;
    transition: border-color 0.2s ease;
}

.category-nav .nav-link:hover, .category-nav .nav-link:focus {
    border-bottom-color: var(--dark-blue);
    text-decoration: none;
}

.category-nav .dropdown-arrow {
    background: none;
    border: none;
    color: var(--dark-blue);
    padding: 0.5rem 0.5rem 0.5rem 0.25rem;
    cursor: pointer;
    font-size: 0.65rem;
    transition: color 0.2s ease, transform 0.2s ease;
    border-bottom: 3px solid transparent;
}

.category-nav .dropdown-arrow:hover, .category-nav .dropdown-arrow:focus {
    color: var(--dark-blue);
}

.category-nav .dropdown-arrow[aria-expanded="true"] {
    transform: rotate(180deg);
}

.category-nav .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 0;
    border-radius: 0.25rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.category-nav .dropdown-item:hover {
    background-color: var(--pale-blue);
    color: var(--blue);
    text-decoration: none;
}

/* === Mobile navigation === */

.navbar-toggler {
    -webkit-appearance: none;
    appearance: none;
    background-color: transparent;
    border: none;
    outline: none;
    padding: 0.5rem;
    font-size: 1.5rem;
    color: var(--dark-blue);
}

.navbar-toggler:focus {
    box-shadow: none;
    outline: none;
}

.offcanvas-top#mobileNav {
    height: fit-content !important;
    max-height: 70vh;
}

.mobile-nav-item a {
    color: var(--dark-blue);
}

.mobile-nav-chevron {
    -webkit-appearance: none;
    appearance: none;
    background-color: transparent;
    border: none;
    outline: none;
    padding: 0.5rem;
    color: var(--blue);
    cursor: pointer;
    font-size: 1rem;
}

.mobile-nav-close, .mobile-nav-back {
    -webkit-appearance: none;
    appearance: none;
    background-color: transparent;
    border: none;
    outline: none;
    padding: 0.5rem;
    color: var(--dark-blue);
    cursor: pointer;
    font-size: 0.95rem;
}