/* Mobile navigation */

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 840px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--teal, #006469);
        flex-direction: column;
        gap: 0;
        padding: 0.5rem 0 1rem;
        z-index: 100;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a {
        padding: 0.75rem 5vw;
        font-size: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    }

    .site-header {
        position: sticky;
        top: 0;
    }

    .nav-wrapper {
        position: relative;
    }
}