/**
 * Nam Việt — Footer (v2 industrial).
 *
 * Dark 4-column footer with blueprint grid overlay. Link columns come from
 * wp_nav_menu (<ul class="menu"><li><a>); contact column is a static .fcol list.
 * Source: design/v2/homepage-vi.html:321-335 / 735-771.
 *
 * Enqueued via inc/hooks-frontend.php (handle `nv-footer`).
 */

footer.site { background: var(--ink); color: var(--s-300); padding: 72px 0 0; position: relative; overflow: hidden; }
footer.site .grid-bg { opacity: 0.4; }
footer.site .container { position: relative; z-index: 2; }

.foot-top {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px;
  padding-bottom: 54px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.foot-brand img { height: 200px; width: auto; margin-bottom: 18px; }
.foot-brand p { font-size: 0.9rem; max-width: 26em; color: var(--s-400); }
.foot-brand .f-slogan {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em;
  color: var(--orange); text-transform: uppercase; margin-top: 18px;
}

.fcol h5 {
  font-family: var(--display); color: #fff; font-size: 0.78rem;
  letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 18px; font-weight: 700;
}
.fcol ul { list-style: none; margin: 0; padding: 0; }
.fcol li { display: block; font-size: 0.92rem; margin-bottom: 11px; }
.fcol a { display: block; color: var(--s-300); font-size: 0.92rem; transition: color 0.2s; }
.fcol li a { margin-bottom: 0; }
.fcol a:hover { color: var(--orange); }
.fcol .contact-li { display: flex; gap: 11px; align-items: flex-start; color: var(--s-300); }
.fcol .contact-li .ci { color: var(--orange); flex: none; margin-top: 1px; }
.fcol .contact-li .ci svg { width: 17px; height: 17px; display: block; }
.fcol .contact-li a { display: inline; }

.foot-bot {
  display: flex; justify-content: center; align-items: center; text-align: center;
  padding: 24px 0; font-family: var(--mono); font-size: 0.74rem; color: var(--s-400);
  flex-wrap: wrap; gap: 10px;
}

@media (max-width: 1080px) {
  .foot-top { grid-template-columns: 1fr 1fr; gap: 36px 28px; }
  .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 680px) {
  .foot-top { grid-template-columns: 1fr; gap: 30px; }
  .foot-bot { flex-direction: column; align-items: center; gap: 6px; }
}