/* Shared dropdown nav styles for inline-nav pages.
   Used by 404.html, europe, privacy, releases, etc. - any page that
   doesn't load alternatives/_alt.css already. Pages must already define
   .nav, .nav a, .nav-download, .mobile-menu-btn locally. */

.nav-item.has-dropdown { position: relative; }
.nav-trigger {
    display: inline-flex; align-items: center; gap: 4px;
    background: none; border: none; cursor: pointer; font-family: inherit;
    color: var(--text-secondary); font-size: 0.88rem; font-weight: 500;
    padding: 8px 16px; border-radius: 8px;
    transition: color 0.15s, background 0.15s;
}
.nav-trigger:hover { color: var(--text); background: var(--bg-subtle); }
.nav-trigger .caret { transition: transform 0.18s; }
.nav-item.has-dropdown.open .nav-trigger .caret { transform: rotate(180deg); }

.nav-dropdown {
    position: absolute; top: calc(100% + 6px); left: 50%;
    transform: translateX(-50%) translateY(-4px);
    background: var(--surface, #fff); border: 1px solid var(--border-light, rgba(15,23,42,0.08));
    border-radius: 14px; box-shadow: 0 16px 40px rgba(15,23,42,0.12);
    padding: 18px; display: none; min-width: 560px; max-width: 92vw;
    grid-template-columns: 1fr 1fr; gap: 22px; z-index: 200;
    opacity: 0; transition: opacity 0.16s ease, transform 0.16s ease;
}
.nav-item.has-dropdown.open .nav-dropdown {
    display: grid; opacity: 1; transform: translateX(-50%) translateY(0);
}
.nav-item.has-dropdown::after {
    content: ''; position: absolute; left: 0; right: 0; top: 100%; height: 8px;
}
.nav-dd-section h4 {
    font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em;
    color: var(--text-muted, #64748b); font-weight: 700;
    margin: 0 0 8px; padding: 0 12px;
}
.nav-dropdown a {
    display: block; padding: 10px 12px; border-radius: 9px;
    font-size: 0.88rem; color: var(--text, #0f172a);
    text-decoration: none; line-height: 1.45;
}
.nav-dropdown a:hover { background: var(--bg-subtle, #f1f5f9); }
.nav-dropdown a strong { display: block; font-weight: 600; color: var(--text, #0f172a); }
.nav-dropdown a span { display: block; font-size: 0.78rem; color: var(--text-muted, #64748b); margin-top: 2px; }
.nav-dropdown a.featured {
    background: linear-gradient(135deg, rgba(37,99,235,0.06), rgba(37,99,235,0.02));
    border: 1px solid rgba(37,99,235,0.18);
}
.nav-dropdown a.featured:hover { background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(37,99,235,0.04)); }
.nav-dropdown a.featured strong { color: var(--accent, #2563eb); }
.nav-dropdown a.dd-all { color: var(--accent, #2563eb); font-weight: 600; }

/* Hover-open only on real pointer devices. Touch devices get sticky
   :hover after a tap, which would either keep the menu pinned open
   or fight the click-toggle. Keep it click-only there. */
@media (hover: hover) and (pointer: fine) {
    .nav-item.has-dropdown:hover .nav-trigger .caret { transform: rotate(180deg); }
    .nav-item.has-dropdown:hover .nav-dropdown,
    .nav-item.has-dropdown:focus-within .nav-dropdown {
        display: grid; opacity: 1; transform: translateX(-50%) translateY(0);
    }
}

@media (max-width: 820px) {
    .nav-item.has-dropdown { width: 100%; }
    .nav-trigger { width: 100%; padding: 12px 16px; justify-content: space-between; font-size: 1rem; }
    .nav-dropdown,
    .nav-item.has-dropdown.open .nav-dropdown {
        position: static; transform: none; min-width: 0; width: 100%; max-width: none;
        grid-template-columns: 1fr; gap: 8px;
        background: transparent; box-shadow: none; border: none; padding: 4px 0 12px;
    }
    .nav-item.has-dropdown::after { display: none; }
    .nav-dd-section { background: var(--bg-subtle, #f1f5f9); border-radius: 10px; padding: 10px; }
    .nav-dd-section h4 { padding: 0 4px; margin-bottom: 4px; }
    .nav-dropdown a { padding: 10px; }
}