/* ==========================================================================
   Header, mega menu, footer — nạp trên mọi trang.
   Mega menu chạy bằng CSS + một chút JS cho bàn phím; không dựa vào jQuery.
   ========================================================================== */

/* --- Thanh trên cùng ------------------------------------------------------ */
.topbar {
  background: var(--c-maroon-900);
  color: rgba(255,255,255,.82);
  font-size: var(--t-xs);
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); min-height: 38px; }
.topbar a { color: rgba(255,255,255,.82); display: inline-flex; align-items: center; gap: .4em; }
.topbar svg { display: inline-block; flex-shrink: 0; }
.topbar a:hover { color: var(--c-gold-300); }
.topbar__links { display: flex; gap: var(--s-4); list-style: none; margin: 0; padding: 0; }
.topbar__links li { margin: 0; }
.topbar__contact { display: none; gap: var(--s-4); }
@media (min-width: 768px) { .topbar__contact { display: flex; } }

/* --- Header --------------------------------------------------------------- */
.site-header { background: var(--c-maroon-700); color: #fff; position: relative; z-index: 100; }
.site-header a { color: #fff; }

.header__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--s-3);
  padding-block: var(--s-3);
}
@media (min-width: 992px) {
  .header__inner { grid-template-columns: auto minmax(0,1fr) auto; gap: var(--s-5); padding-block: var(--s-4); }
}

.brand { display: flex; align-items: center; gap: var(--s-2); flex-shrink: 0; }
.brand img { max-height: 54px; width: auto; }
.brand__text { font-weight: 700; font-size: var(--t-md); line-height: 1.15; letter-spacing: .02em; }
.brand__text span { display: block; font-size: var(--t-xs); font-weight: 400; color: var(--c-gold-300); letter-spacing: .18em; }

/* Ô tìm kiếm */
.header__search { display: none; }
@media (min-width: 992px) { .header__search { display: block; width: 100%; max-width: 440px; justify-self: center; } }
.search-form { display: flex; position: relative; background: #fff; border-radius: 999px; box-shadow: var(--shadow-1); }
.search-form > input[type="search"] { border-radius: 999px 0 0 999px; }
.search-form > button { border-radius: 0 999px 999px 0; }
.search-form input[type="search"] {
  flex: 1; min-width: 0; border: 0; padding: .7em 1.2em;
  font-size: var(--t-sm); color: var(--c-ink); background: transparent;
}
.search-form input[type="search"]::placeholder { color: #9a9490; }
.search-form button {
  border: 0; background: var(--c-gold-500); color: var(--c-maroon-900);
  padding-inline: 1.2em; display: grid; place-items: center;
  transition: background .18s var(--ease);
}
.search-form button:hover { background: var(--c-gold-300); }

/* Nhóm nút bên phải */
.header__actions { display: flex; align-items: center; gap: var(--s-3); }
.header__hotline { display: none; line-height: 1.2; }
@media (min-width: 1100px) { .header__hotline { display: block; } }
.header__hotline small { display: block; font-size: var(--t-xs); color: var(--c-gold-300); }
.header__hotline strong { font-size: var(--t-md); letter-spacing: .01em; }

.icon-btn {
  position: relative; display: grid; place-items: center;
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(255,255,255,.1); border: 0; color: #fff;
  transition: background .18s var(--ease);
}
.icon-btn:hover { background: rgba(255,255,255,.2); color: #fff; }
.icon-btn__count {
  position: absolute; top: -2px; right: -2px;
  min-width: 19px; height: 19px; padding-inline: 4px;
  display: grid; place-items: center;
  background: var(--c-gold-500); color: var(--c-maroon-900);
  border-radius: 999px; font-size: 11px; font-weight: 700; line-height: 1;
}
.nav-toggle { display: grid; }
@media (min-width: 992px) { .nav-toggle { display: none; } }

/* --- Thanh điều hướng chính ---------------------------------------------- */
.navbar { background: var(--c-maroon-900); display: none; }
@media (min-width: 992px) { .navbar { display: block; } }

.nav { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; }
.nav li { margin: 0; position: relative; }
.nav > li > a {
  display: flex; align-items: center; gap: .35em;
  padding: .85em 1em;
  color: rgba(255,255,255,.92);
  font-size: var(--t-sm); font-weight: 600;
  text-transform: uppercase; letter-spacing: .02em;
  transition: background .18s var(--ease), color .18s var(--ease);
}
/* Hover / đang mở bảng: tô nền. Mục "đang xem" (trang thuộc menu đó): chỉ gạch vàng dưới chân, không tô nền để khỏi nhầm với hover */
.nav > li > a:hover,
.nav > li:hover > a,
.nav > li.is-open > a { background: var(--c-maroon-700); color: var(--c-gold-300); }
.nav > li.current-menu-item > a,
.nav > li.current-menu-ancestor > a,
.nav > li.current_page_parent > a { box-shadow: inset 0 -3px 0 var(--c-gold-500); color: var(--c-gold-300); }
.nav > li.menu-item-has-children > a::after {
  content: ""; width: 0; height: 0; margin-left: .2em;
  border: 4px solid transparent; border-top-color: currentColor; transform: translateY(2px);
}

/* Mega panel */
.nav .sub-menu {
  position: absolute; top: 100%; left: 0; z-index: 90;
  min-width: 260px; margin: 0; padding: var(--s-2) 0;
  list-style: none;
  background: #fff; border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-3);
  opacity: 0; visibility: hidden; transform: translateY(6px); pointer-events: none;
  transition: opacity .16s var(--ease), transform .16s var(--ease), visibility .16s;
}
/* Cấp 1: mở bằng JS (.is-open, có độ trễ chống nhảy menu) hoặc bàn phím; cấp 2+ (dropdown thường) vẫn hover */
.nav > li.is-open > .sub-menu,
.nav li:focus-within > .sub-menu,
.nav .sub-menu li:hover > .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
.nav > li.is-open > a { background: var(--c-maroon-700); color: var(--c-gold-300); }
@media (hover: none), (max-width: 991px) { .nav li:hover > .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; } }

.nav .sub-menu li { margin: 0; }
.nav .sub-menu a {
  display: block; padding: .5em var(--s-4);
  color: var(--c-body); font-size: var(--t-sm); font-weight: 400;
  border-left: 2px solid transparent;
  transition: all .14s var(--ease);
}
.nav .sub-menu a:hover { background: var(--c-surface-3); color: var(--c-accent); border-left-color: var(--c-gold-500); }

/* Cấp 3 mở sang ngang */
.nav .sub-menu .sub-menu { top: -.5rem; left: 100%; border-radius: var(--radius); }
.nav .sub-menu > li.menu-item-has-children > a { display: flex; justify-content: space-between; align-items: center; }
.nav .sub-menu > li.menu-item-has-children > a::after {
  content: "›"; font-size: 1.2em; line-height: 1; color: var(--c-muted);
}
/* Panel sát mép phải thì lật vào trong */
.nav > li:nth-last-child(-n+3) .sub-menu .sub-menu { left: auto; right: 100%; }

/* --- Menu di động --------------------------------------------------------- */
.drawer {
  position: fixed; inset: 0 30% 0 0; z-index: 200;
  background: #fff; box-shadow: var(--shadow-3);
  transform: translateX(-100%); transition: transform .28s var(--ease);
  overflow-y: auto; overscroll-behavior: contain;
  display: flex; flex-direction: column;
  max-width: 340px;
}
.drawer[data-open="true"] { transform: translateX(0); }
.drawer__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--s-3) var(--s-4);
  background: var(--c-maroon-700); color: #fff;
  position: sticky; top: 0; z-index: 2;
}
.drawer__head .icon-btn { background: rgba(255,255,255,.14); }
.drawer__body { padding: var(--s-3) 0 var(--s-6); }

.drawer .nav-mobile,
.drawer .nav-mobile ul { list-style: none; margin: 0; padding: 0; }
.drawer .nav-mobile li { margin: 0; border-bottom: 1px solid var(--c-line); }
.drawer .nav-mobile ul li:last-child { border-bottom: 0; }
.drawer .nav-mobile a {
  display: block; padding: .8em var(--s-4);
  color: var(--c-ink); font-size: var(--t-sm); font-weight: 500;
}
.drawer .nav-mobile ul { background: var(--c-surface-2); display: none; }
.drawer .nav-mobile li[data-expanded="true"] > ul { display: block; }
.drawer .nav-mobile ul a { padding-left: var(--s-6); font-weight: 400; font-size: var(--t-xs); }
.drawer .nav-mobile ul ul a { padding-left: calc(var(--s-6) + var(--s-4)); }

.drawer .submenu-toggle {
  position: absolute; right: 0; top: 0;
  width: 46px; height: 42px;
  display: grid; place-items: center;
  background: none; border: 0; color: var(--c-muted);
  transition: transform .2s var(--ease);
}
.drawer .nav-mobile li { position: relative; }
.drawer .nav-mobile li[data-expanded="true"] > .submenu-toggle { transform: rotate(180deg); color: var(--c-accent); }

.scrim {
  position: fixed; inset: 0; z-index: 199;
  background: rgba(26,22,20,.5);
  opacity: 0; visibility: hidden; transition: opacity .28s var(--ease), visibility .28s;
}
.scrim[data-open="true"] { opacity: 1; visibility: visible; }

body[data-locked="true"] { overflow: hidden; }

/* --- Footer --------------------------------------------------------------- */
.site-footer { background: var(--c-maroon-900); color: rgba(255,255,255,.75); margin-top: var(--s-8); }
.site-footer a { color: rgba(255,255,255,.78); }
.site-footer a:hover { color: var(--c-gold-300); }
.site-footer svg { display: inline-block; flex-shrink: 0; vertical-align: -3px; }

.footer__grid { display: grid; gap: var(--s-6) var(--s-5); padding-block: var(--s-7); }
@media (min-width: 700px)  { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1100px) { .footer__grid { grid-template-columns: 1.25fr 1.15fr .8fr 1fr; } }

.footer__title {
  color: #fff; font-size: var(--t-sm); font-weight: 700; text-transform: uppercase; letter-spacing: .1em;
  margin: 0 0 var(--s-4); padding-bottom: var(--s-2); border-bottom: 1px solid rgba(237,201,131,.3);
}
.footer__logo img { max-height: 56px; width: auto; margin-bottom: var(--s-3); }
.footer__tagline { font-size: var(--t-sm); line-height: 1.65; margin-bottom: var(--s-4); }
.footer__hotline {
  display: inline-flex; align-items: center; gap: var(--s-3);
  padding: var(--s-2) var(--s-4) var(--s-2) var(--s-3); margin-bottom: var(--s-3);
  background: rgba(255,255,255,.06); border: 1px solid rgba(237,201,131,.35); border-radius: var(--radius);
  color: #fff !important; font-size: var(--t-lg); font-weight: 700; letter-spacing: .01em;
}
.footer__hotline svg { color: var(--c-gold-300); }
.footer__hotline small { display: block; font-size: var(--t-xs); font-weight: 400; color: var(--c-gold-300); letter-spacing: .08em; text-transform: uppercase; }
.footer__hotline:hover { border-color: var(--c-gold-300); }
.footer__line { display: flex; align-items: center; gap: .5em; font-size: var(--t-sm); margin: 0 0 var(--s-2); }
.footer__line svg { color: var(--c-gold-300); }

.footer__places { list-style: none; margin: 0; padding: 0; font-size: var(--t-sm); }
.footer__places li { display: grid; grid-template-columns: 16px 1fr; gap: var(--s-2); margin: 0 0 var(--s-3); line-height: 1.5; }
.footer__places svg { color: var(--c-gold-300); margin-top: 3px; }
.footer__places strong { display: block; color: #fff; font-weight: 600; }
.footer__more { display: inline-block; margin-top: var(--s-1); font-size: var(--t-sm); font-weight: 600; color: var(--c-gold-300) !important; }

.footer__list { list-style: none; margin: 0; padding: 0; font-size: var(--t-sm); columns: 1; }
.footer__list li { margin: 0 0 .55em; }

.footer__text { font-size: var(--t-sm); line-height: 1.6; margin-bottom: var(--s-4); }
.footer__social { list-style: none; margin: 0 0 var(--s-5); padding: 0; display: flex; gap: var(--s-3); }
.footer__social li { margin: 0; }
.footer__social a {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15); color: #fff;
  transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
}
.footer__social a:hover { transform: translateY(-2px); color: #fff; }
.footer__social-facebook:hover { background: #1877f2; border-color: #1877f2; }
.footer__social-youtube:hover  { background: #ff0000; border-color: #ff0000; }
.footer__social-zalo:hover     { background: #0068ff; border-color: #0068ff; }
.footer__social b { font-size: 12px; font-weight: 800; letter-spacing: .02em; }
.footer__cta { display: flex; flex-wrap: wrap; gap: var(--s-2); }
.footer__btn-ghost { --btn-ink: #fff; border-color: rgba(255,255,255,.45); }
.footer__btn-ghost:hover { background: rgba(255,255,255,.12); --btn-ink: #fff; }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding-block: var(--s-4);
  font-size: var(--t-xs); display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-4);
  align-items: center; justify-content: space-between;
}
.footer__policies { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-4); }
.footer__policies li { margin: 0; }

/* --- Nút liên hệ nổi ------------------------------------------------------ */
.floating-contact {
  position: fixed; left: var(--s-4); bottom: var(--s-4); z-index: 120;
  display: flex; flex-direction: column; gap: var(--s-2);
}
.floating-contact a {
  display: grid; place-items: center;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--c-red); color: #fff;
  box-shadow: var(--shadow-2);
  transition: transform .2s var(--ease);
}
.floating-contact a:hover { transform: scale(1.08); color: #fff; }
.floating-contact a.zalo { background: #0068ff; }
@media print { .floating-contact, .topbar, .navbar { display: none; } }

/* --- Gợi ý tìm kiếm (AJAX) ----------------------------------------------- */
[data-search] { position: relative; }
.drawer__search { margin: 0 1rem 1rem; }
.search-suggest {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0; z-index: 250;
  background: #fff; color: var(--c-body);
  border: 1px solid var(--c-line); border-radius: var(--radius);
  box-shadow: var(--shadow-3); overflow: hidden; text-align: left;
}
.search-suggest__group { padding: var(--s-2) var(--s-3) 0; font-size: var(--t-xs); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--c-bronze); }
.search-suggest__item {
  display: grid; grid-template-columns: 44px 1fr; gap: var(--s-3); align-items: center;
  padding: .5em var(--s-3); color: var(--c-ink); font-size: var(--t-sm); line-height: 1.35;
  text-transform: none; letter-spacing: 0; font-weight: 400;
}
.search-suggest__item img { width: 44px; height: 44px; object-fit: cover; border-radius: var(--radius-sm); background: var(--c-surface-3); }
.search-suggest__item.no-thumb { grid-template-columns: 1fr; }
.search-suggest__item small { display: block; color: var(--c-muted); font-size: var(--t-xs); }
.search-suggest__item mark { background: none; color: var(--c-maroon-700); font-weight: 700; }
.search-suggest__item:hover, .search-suggest__item[aria-selected="true"] { background: var(--c-surface-3); color: var(--c-maroon-700); }
.search-suggest__all, .search-suggest__empty {
  display: block; padding: .7em var(--s-3); border-top: 1px solid var(--c-line);
  font-size: var(--t-sm); font-weight: 600; color: var(--c-maroon-700); text-align: center; text-transform: none; letter-spacing: 0;
}
.search-suggest__empty { color: var(--c-muted); font-weight: 400; }
.search-form.is-loading > button svg { animation: dd-pulse .8s ease-in-out infinite; }
@keyframes dd-pulse { 50% { opacity: .35; } }

/* Dropdown nằm trong header/drawer nên phải thắng rule `.site-header a { color:#fff }` */
.site-header .search-suggest a, .drawer .search-suggest a, .search-suggest__item { color: var(--c-ink); }
.site-header .search-suggest__item small, .search-suggest__item small { color: var(--c-muted); }
.site-header .search-suggest__item:hover, .site-header .search-suggest__item[aria-selected="true"],
.search-suggest__item:hover, .search-suggest__item[aria-selected="true"] { color: var(--c-maroon-700); background: var(--c-surface-3); }
.site-header .search-suggest__all, .search-suggest__all { color: var(--c-maroon-700); }
.search-suggest__item span { font-weight: 500; }

/* Dấu "Đã thông báo Bộ Công Thương" (ảnh chính thức của online.gov.vn), link tới hồ sơ */
.footer__moit { display: inline-block; margin-top: var(--s-4); line-height: 0; border-radius: 6px; transition: filter .15s var(--ease); }
.footer__moit img { width: 170px; height: auto; border-radius: 6px; }
.footer__moit:hover { filter: brightness(1.1); }

/* --- Dải trước chân trang (mọi trang) --------------------------------- */
/* Showroom: bản đồ trang trí bên trái + 3 thẻ cửa hàng có ảnh */
.showrooms { background: linear-gradient(180deg, var(--c-surface), var(--c-surface-2)); }
.showrooms__layout { display: grid; gap: var(--s-6); align-items: center; }
@media (min-width: 992px) { .showrooms__layout { grid-template-columns: 280px minmax(0, 1fr); gap: var(--s-8); } }

.showrooms__map { display: none; position: relative; padding: var(--s-6); }
@media (min-width: 992px) { .showrooms__map { display: block; } }
.showrooms__map::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background: radial-gradient(circle, rgba(237,201,131,.45), rgba(237,201,131,.08) 60%, transparent 72%);
}
.showrooms__map img { position: relative; max-height: 420px; width: auto; margin-inline: auto; filter: drop-shadow(0 8px 18px rgba(153,105,77,.25)); }

.showrooms__list { display: grid; gap: var(--s-4); }
@media (min-width: 640px) { .showrooms__list { grid-template-columns: repeat(3, 1fr); } }
.showroom-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}
.showroom-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-3); }
.showroom-card__media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--c-surface-3); }
.showroom-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.showroom-card:hover .showroom-card__media img { transform: scale(1.04); }
.showroom-card__badge {
  position: absolute; left: var(--s-3); bottom: var(--s-3);
  background: rgba(59,2,3,.85); color: var(--c-gold-300);
  font-size: var(--t-xs); font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  padding: .35em .8em; border-radius: 999px; backdrop-filter: blur(4px);
}
.showroom-card__body { padding: var(--s-4); display: flex; flex-direction: column; gap: var(--s-3); flex: 1; }
.showroom-card__addr { display: flex; gap: .5em; margin: 0; font-size: var(--t-sm); line-height: 1.5; color: var(--c-ink); font-weight: 500; }
.showroom-card__addr svg { color: var(--c-maroon-700); flex-shrink: 0; margin-top: 3px; }
.showroom-card__actions { margin-top: auto; display: flex; justify-content: space-between; gap: var(--s-2); font-size: var(--t-sm); }
.showroom-card__actions a { display: inline-flex; align-items: center; gap: .35em; font-weight: 600; }
.showroom-card__actions a:first-child { color: var(--c-red); }
.showrooms__factory { grid-column: 1 / -1; margin: var(--s-2) 0 0; font-size: var(--t-sm); color: var(--c-muted); display: flex; gap: .4em; align-items: center; }
.showrooms__factory svg { color: var(--c-bronze); }
.showrooms__factory strong { color: var(--c-body); }

/* Tại sao chọn: dải nâu đỏ với con số lớn */
.why { background: radial-gradient(120% 100% at 0% 0%, var(--c-maroon-500), var(--c-maroon-900) 65%); color: rgba(255,255,255,.85); }
.section-head--light h2 { color: #fff; }
.section-head--light .eyebrow { color: var(--c-gold-300); }
.why__grid { display: grid; gap: var(--s-4); }
@media (min-width: 640px) { .why__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .why__grid { grid-template-columns: repeat(4, 1fr); } }
.why__item { padding: var(--s-5); background: rgba(255,255,255,.06); border: 1px solid rgba(237,201,131,.25); border-radius: var(--radius-lg); }
.why__num { margin: 0 0 var(--s-2); font-size: clamp(2rem, 1.6rem + 1.6vw, 2.8rem); font-weight: 700; line-height: 1; color: var(--c-gold-300); letter-spacing: -.02em; }
.why__num small { display: block; margin-top: .3em; font-size: var(--t-sm); font-weight: 600; color: #fff; text-transform: uppercase; letter-spacing: .08em; }
.why__desc { margin: 0; font-size: var(--t-sm); line-height: 1.6; }
.why__cta { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--s-3); margin-top: var(--s-6); }
.why__ghost { --btn-ink: #fff; border-color: rgba(255,255,255,.5); }
.why__ghost:hover { background: rgba(255,255,255,.12); --btn-ink: #fff; }


.site-footer { margin-top: 0; }
.why { padding-block: var(--s-8); }
.showrooms { background: var(--c-surface-2); border-top: 1px solid var(--c-line); padding-block: var(--s-8); }
.showrooms .section-head { margin-bottom: var(--s-6); }
.footer__list--extra { margin-top: var(--s-2); padding-top: var(--s-2); border-top: 1px dashed rgba(255,255,255,.15); }
.footer__factory { display: inline-flex; align-items: center; gap: .35em; }

/* --- Mega menu desktop: cỡ bảng theo từng menu (xem inc/nav-walker.php) ---------------- */
@media (min-width: 992px) {
  .navbar .wrap { position: relative; }
  /* bảng vừa (2–3 cột): nằm ngay dưới mục, rộng vừa đủ; 3 mục cuối canh phải để không tràn */
  .nav > li.mega > .sub-menu { width: auto; min-width: 0; padding: var(--s-5) var(--s-5); border-radius: 0 0 var(--radius-lg) var(--radius-lg); column-gap: var(--s-5); }
  .nav > li.mega--2 > .sub-menu { width: 560px; column-count: 2; }
  .nav > li.mega--3 > .sub-menu { width: 820px; column-count: 3; }
  .nav > li.mega:not(.mega--4) > .sub-menu { left: 0; max-width: calc(100vw - 2 * var(--s-4)); }
  /* bảng lớn (4 cột): rộng bằng thanh menu */
  .nav > li.mega--4 { position: static; }
  .nav > li.mega--4 > .sub-menu { left: 0; right: 0; padding: var(--s-5) var(--s-6); column-count: 4; column-gap: var(--s-6); }
  .nav > li.mega > .sub-menu > li { break-inside: avoid; -webkit-column-break-inside: avoid; page-break-inside: avoid; margin-bottom: .15em; }
  .nav > li.mega > .sub-menu > li > a { padding: .45em .6em; border-left: 0; border-radius: var(--radius-sm); font-size: var(--t-sm); white-space: normal; }
  .nav > li.mega > .sub-menu > li.menu-item-has-children { margin-bottom: .6em; }
  .nav > li.mega > .sub-menu > li.menu-item-has-children > a { font-weight: 700; color: var(--c-maroon-700); text-transform: uppercase; font-size: var(--t-xs); letter-spacing: .06em; border-bottom: 1px solid var(--c-line); border-radius: 0; margin-bottom: .25em; }
  .nav > li.mega > .sub-menu > li.menu-item-has-children > a::after { display: none; }
  /* visibility: inherit (KHÔNG phải visible) — nếu không, mục cấp 3 của bảng đang ẩn vẫn nhận chuột dù trong suốt */
  .nav > li.mega .sub-menu .sub-menu { position: static; opacity: 1; visibility: inherit; transform: none; display: block; box-shadow: none; border: 0; padding: 0; min-width: 0; width: auto; background: transparent; pointer-events: inherit; }
  .nav > li.mega .sub-menu .sub-menu a { padding: .35em .6em .35em 1em; font-size: var(--t-sm); color: var(--c-body); white-space: normal; }
  .nav > li.mega .sub-menu .sub-menu a::before { content: "·"; margin-right: .5em; color: var(--c-gold-500); }
  .nav > li.mega:nth-last-child(-n+3) .sub-menu .sub-menu { left: auto; right: auto; }
}
/* Nút về đầu trang */
.to-top { position: fixed; right: var(--s-4); bottom: var(--s-4); z-index: 90; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--c-line); background: var(--c-surface); color: var(--c-maroon-700); box-shadow: var(--shadow-2); display: grid; place-items: center; opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s; cursor: pointer; }
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--c-maroon-700); color: #fff; }
.to-top svg { transform: rotate(180deg); }






/* --- Header di động: ☰ · logo giữa · 🔍 · 📞; ô tìm kiếm trượt xuống dưới hàng đầu ------------------ */
@media (max-width: 991px) {
  .header__inner { grid-template-columns: 1fr auto 1fr; gap: var(--s-2); padding-block: var(--s-2); }
  .nav-toggle { justify-self: start; }
  .header__actions { justify-self: end; }
  .brand { justify-self: center; }
  .brand img { max-height: 42px; }
  .header__actions { gap: var(--s-2); }
  .icon-btn { width: 40px; height: 40px; }
  .header__search { display: none; grid-column: 1 / -1; margin: 0 0 var(--s-1); }
  .header__search.is-open { display: block; animation: dd-drop .18s var(--ease); }
  .header__search .search-form { box-shadow: none; }
  .header__search .search-form input[type="search"] { height: 44px; font-size: 16px; } /* 16px: iOS không zoom khi focus */
  .search-toggle[aria-expanded="true"] { background: var(--c-gold-500); color: var(--c-maroon-900); }
  .drawer__search { display: none; } /* đã có ô tìm kiếm ở header, bỏ bản trong ngăn kéo cho gọn */
}
@media (min-width: 992px) { .search-toggle, .header__call { display: none; } }
@keyframes dd-drop { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }