/**
 * A2CTRAVEL — Footer chuẩn (4 cột + copyright)
 * Thông tin công ty triển khai nền tảng · SiteNav.renderFooter()
 */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 50px 0 30px;
  margin-top: 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 30px;
}

.footer-col h4,
.footer-grid h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 16px;
}

.footer-col a,
.footer-grid a,
.footer-col p,
.footer-grid p,
.footer-brand p {
  display: block;
  font-size: 13px;
  line-height: 1.45;
  margin: 0 0 8px;
  color: #94a3b8;
  text-decoration: none;
}

.footer-col a:hover,
.footer-grid a:hover { color: #fff; }

.footer-brand .brand-name {
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 12px;
  display: block;
}

.footer-meta { font-size: 12px !important; color: #64748b !important; }

.copyright {
  border-top: 1px solid #1e293b;
  padding-top: 20px;
  text-align: center;
  font-size: 12px;
  color: #64748b;
}

@media (max-width: 992px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 576px) {
  .footer-grid { grid-template-columns: 1fr; }
}