/* Shared information architecture: global navigation, breadcrumbs and related links. */

.site-nav .nav-dropdown {
    position: relative;
    color: var(--muted);
    font-size: 0.88rem;
    font-weight: 500;
}

.site-nav .nav-dropdown > summary {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 0;
    cursor: pointer;
    list-style: none;
}

.site-nav .nav-dropdown > summary::-webkit-details-marker {
    display: none;
}

.site-nav .nav-dropdown > summary::after {
    width: 0.42rem;
    height: 0.42rem;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    content: "";
    transform: translateY(-0.14rem) rotate(45deg);
    transition: transform 180ms ease;
}

.site-nav .nav-dropdown[open] > summary::after {
    transform: translateY(0.08rem) rotate(225deg);
}

.nav-dropdown-panel {
    position: absolute;
    z-index: 10;
    top: calc(100% + 0.65rem);
    left: 50%;
    display: grid;
    width: min(31rem, 78vw);
    padding: 0.7rem;
    border: 1px solid var(--border, var(--line));
    border-radius: 1.1rem;
    background: var(--surface, var(--card-solid));
    box-shadow: 0 22px 58px rgba(28, 32, 27, 0.16);
    grid-template-columns: repeat(2, minmax(0, 1fr));
    transform: translateX(-50%);
}

.site-nav .nav-dropdown-panel a {
    display: block;
    min-height: 0;
    padding: 0.8rem;
    border-radius: 0.75rem;
}

.site-nav .nav-dropdown-panel a::after {
    display: none;
}

.site-nav .nav-dropdown-panel a:hover {
    background: var(--accent-soft, var(--paper-warm));
}

.nav-dropdown-panel strong,
.nav-dropdown-panel span {
    display: block;
}

.nav-dropdown-panel strong {
    color: var(--ink);
    font-size: 0.9rem;
}

.nav-dropdown-panel span {
    margin-top: 0.1rem;
    color: var(--muted);
    font-size: 0.72rem;
    line-height: 1.35;
}

.breadcrumb {
    position: relative;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 600;
    letter-spacing: 0.035em;
}

.breadcrumb a {
    color: inherit;
}

.breadcrumb a:hover {
    color: var(--ink);
}

.breadcrumb [aria-current="page"] {
    color: var(--ink);
}

.breadcrumb-separator {
    color: var(--border-strong, var(--line-strong));
}

.breadcrumb-inline {
    margin-bottom: clamp(2.2rem, 5vw, 4.5rem);
}

.related-resources {
    padding-block: clamp(4.5rem, 8vw, 7rem);
    border-top: 1px solid var(--border, var(--line));
}

.related-resources h2 {
    max-width: 18ch;
    margin: 0 0 2rem;
    font-family: var(--serif, "Newsreader", Georgia, serif);
    font-size: clamp(2rem, 4vw, 3.4rem);
    font-weight: 500;
    letter-spacing: -0.04em;
    line-height: 1;
}

.related-resource-links {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.related-resource-links a {
    display: flex;
    min-height: 9rem;
    padding: 1.5rem;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid var(--border, var(--line));
    border-radius: 1.25rem;
    background: var(--surface, var(--card));
    transition: border-color 180ms ease, transform 180ms ease;
}

.related-resource-links a:hover {
    border-color: var(--accent, var(--lavender));
    transform: translateY(-3px);
}

.related-resource-links span {
    color: var(--muted);
    font-size: 0.76rem;
    text-transform: uppercase;
}

.related-resource-links strong {
    max-width: 18ch;
    font-family: var(--serif, "Newsreader", Georgia, serif);
    font-size: 1.4rem;
    font-weight: 500;
    line-height: 1.1;
}

.footer-resource-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem 1.1rem;
    color: var(--muted);
    font-size: 0.78rem;
}

.footer-resource-links a:hover {
    color: var(--ink);
}

.footer-inner.has-resource-links {
    grid-template-columns: auto 1fr auto;
}

@media (max-width: 860px) {
    .site-nav.is-open {
        max-height: 720px;
        overflow-y: auto;
    }

    .site-nav .nav-dropdown {
        width: 100%;
        font-size: 1rem;
    }

    .site-nav .nav-dropdown > summary {
        width: 100%;
        min-height: 48px;
        justify-content: space-between;
        padding: 0.75rem 0.9rem;
        border-radius: 0.75rem;
    }

    .nav-dropdown-panel {
        position: static;
        width: 100%;
        padding: 0 0 0.5rem 0.75rem;
        border: 0;
        background: transparent;
        box-shadow: none;
        grid-template-columns: 1fr;
        transform: none;
    }

    .site-nav .nav-dropdown-panel a {
        min-height: 48px;
        padding: 0.65rem 0.9rem;
    }

    .site-nav .nav-dropdown-panel span {
        display: none;
    }

    .related-resource-links {
        grid-template-columns: 1fr;
    }

    .footer-inner.has-resource-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 620px) {
    .breadcrumb {
        flex-wrap: wrap;
        justify-content: center;
        text-align: center;
    }

    .related-resources h2 {
        margin-inline: auto;
        text-align: center;
    }

    .footer-resource-links {
        max-width: 20rem;
        margin-inline: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-nav .nav-dropdown > summary::after,
    .related-resource-links a {
        transition: none;
    }
}