/* ==========================================================================
   Thăng Long Kim Việt – Header & Navbar (UI only)
   Scoped to .header / .header-* — does not affect tv-model (.tv-*)
   ========================================================================== */

:root {
  --tlkv-header-cream: #f8f6f1;
  --tlkv-header-pearl: #fdfcf8;
  --tlkv-header-gold: #c9a14a;
  --tlkv-header-gold-soft: #d6b25e;
  --tlkv-header-gold-mb: #ffd47a;
  --tlkv-header-red-deep: #6f1020;
  --tlkv-header-red-wine: #8b1e2d;
  --tlkv-header-text: #1a1a1a;
  --tlkv-header-muted: #666666;
  --tlkv-header-border: #ebe6dc;
  /* Brand lockup — icon height tracks stacked wordmark cap-height (not line-box) */
  --tlkv-brand-line-1: 28px;
  --tlkv-brand-line-2: 40px;
  --tlkv-brand-track: 1.2px;
  --tlkv-brand-track-1: 0.8px;
  --tlkv-brand-track-2: 1.6px;
  --tlkv-brand-line-gap: 0.3125rem;
  --tlkv-brand-line-height: 1.08;
  --tlkv-brand-gap: 0.875rem;
  --tlkv-brand-wordmark-h: calc(
    var(--tlkv-brand-line-1) + var(--tlkv-brand-line-gap) + var(--tlkv-brand-line-2)
  );
  --tlkv-brand-lockup-h: var(--tlkv-brand-wordmark-h);
  --tlkv-header-mark-h: calc(var(--tlkv-brand-lockup-h) * 1.22);
  --tlkv-header-mark-w: calc(var(--tlkv-brand-lockup-h) * 1.38);
  --tlkv-header-mark-size: var(--tlkv-header-mark-h);
  --tlkv-header-inner-min-h: 108px;
  --tlkv-header-nav-gap: 4px;
  --tlkv-header-nav-offset: 10%;
  --tlkv-brand-name-color: rgb(240, 229, 87);
  --tlkv-brand-name-stroke: 1px #9b0102;
  --tlkv-header-brand-red: #9b0102;
  --tlkv-header-divider-inset: 42px;
}

/* ----- Shell ----- */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--tlkv-header-pearl);
  border-bottom: 1px solid var(--tlkv-header-border);
  box-shadow: none;
}

/* ----- Topbar ----- */
.header-topbar {
  background: var(--tlkv-header-cream);
  color: var(--tlkv-header-muted);
  font-size: 0.75rem;
  line-height: 1.45;
  border-bottom: 1px solid var(--tlkv-header-border);
}

.header-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 32px;
  padding: 5px 0;
}

.header-topbar__meta {
  margin: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.header-topbar__item {
  white-space: nowrap;
}

.header-topbar__sep {
  opacity: 0.4;
}

.header-topbar__zalo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-topbar__zalo-link {
  display: block;
  line-height: 0;
  transition: opacity 0.2s ease;
}

.header-topbar__zalo-link:hover {
  opacity: 0.85;
  text-decoration: none;
}

.header-topbar__cta {
  display: none !important;
}

@media (min-width: 769px) {
  .header-topbar__cta {
    display: none !important;
  }
}

.header-topbar__zalo-icon {
  display: block;
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.header-topbar__social-icon {
  display: block;
  width: 32px;
  height: 32px;
}

/* ----- Main navbar ----- */
.header-pc {
  display: block;
  position: relative;
  overflow: visible;
  background: var(--tlkv-header-pearl);
}

.header-pc > .container {
  position: relative;
  overflow-x: visible;
}

.header--inner {
  display: flex;
  align-items: stretch;
  justify-content: flex-start;
  min-height: var(--tlkv-header-inner-min-h);
}

.header-start {
  position: relative;
  display: flex;
  align-items: center;
  flex: 0 1 auto;
  min-width: 0;
}

/* ----- Unified branding block (logo + wordmark) ----- */
.header-brand {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  padding: 0.5rem 0;
  margin-right: 0.25rem;
}

.header-brand__link {
  display: flex;
  align-items: center;
  gap: var(--tlkv-brand-gap);
  text-decoration: none;
  color: inherit;
  transition: opacity 0.25s ease;
}

.header-brand__link:hover {
  text-decoration: none;
  opacity: 0.88;
}

.header-brand__mark {
  flex: 0 0 var(--tlkv-header-mark-w);
  width: var(--tlkv-header-mark-w);
  height: var(--tlkv-header-mark-h);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
  /* Optical center: emblem reads slightly low vs cap height */
  transform: translateY(-0.5px);
}

.header-brand__mark .site-logo-img {
  width: auto;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: contain;
  filter: none;
  transform: scale(1.14);
  transform-origin: center center;
}

.header-brand__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--tlkv-brand-line-gap);
  padding-top: 1px;
  min-width: 0;
  text-align: center;
}

.header-brand__line {
  display: block;
  font-family: var(--tlkv-font-body);
  font-weight: 700;
  line-height: var(--tlkv-brand-line-height);
  letter-spacing: var(--tlkv-brand-track-1);
  text-transform: uppercase;
  font-style: normal;
  color: var(--tlkv-brand-name-color);
  -webkit-text-stroke: var(--tlkv-brand-name-stroke);
  paint-order: stroke fill;
  white-space: nowrap;
  text-align: center;
}

.header-brand__line--accent {
  font-weight: 700;
  color: var(--tlkv-brand-name-color);
  -webkit-text-stroke: var(--tlkv-brand-name-stroke);
  paint-order: stroke fill;
}

/* Desktop — logo = wordmark height */
.header-pc .header--inner {
  align-items: stretch;
}

.header-pc .header-start {
  align-self: stretch;
  align-items: stretch;
}

.header-pc .header-gr.left-gr,
.header-pc .header-gr.right-gr {
  align-self: center;
}

.header-pc .header-brand {
  position: relative;
  z-index: 0;
  align-self: stretch;
  display: flex;
  align-items: center;
  padding: 0 clamp(0.75rem, 1.5vw, 1.25rem) 0 clamp(0.875rem, 2vw, 1.5rem);
  margin-right: 0;
  border-right: none;
}

.header-pc .header-brand::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(50% - 50vw);
  right: calc(-1 * var(--tlkv-header-divider-inset) - 1px);
  background: var(--tlkv-header-brand-red);
  z-index: -1;
}

.header-pc .header-brand__link,
.header-pc .header-brand__mark,
.header-pc .header-brand__text {
  position: relative;
  z-index: 1;
}

.header-pc .header-brand__line,
.header-pc .header-brand__line--accent {
  -webkit-text-stroke: 0.5px #000000;
  paint-order: stroke fill;
}

.header-pc .header-brand__link {
  gap: var(--tlkv-brand-gap);
  align-items: center;
}

.header-pc .header-brand__mark {
  --tlkv-header-mark-h: calc(var(--tlkv-brand-lockup-h) * 1.24);
  --tlkv-header-mark-w: calc(var(--tlkv-brand-lockup-h) * 1.42);
  transform: none;
}

.header-pc .header-brand__mark .site-logo-img {
  transform: scale(1.18);
}

.header-pc .header-brand__text {
  height: auto;
  justify-content: center;
  align-items: center;
  gap: var(--tlkv-brand-line-gap);
  padding-top: 0;
  text-align: center;
}

.header-pc .header-brand__line,
.header-pc .header-brand__line--accent {
  line-height: var(--tlkv-brand-line-height);
  font-style: normal;
  text-align: center;
}

.header-pc .header-brand__line:first-child {
  font-size: var(--tlkv-brand-line-1);
  font-weight: 700;
  letter-spacing: var(--tlkv-brand-track-1);
  color: var(--tlkv-brand-name-color);
}

.header-pc .header-brand__line--accent {
  font-size: var(--tlkv-brand-line-2);
  font-weight: 700;
  letter-spacing: var(--tlkv-brand-track-2);
  color: var(--tlkv-brand-name-color);
}

.header-pc .header-brand__line--accent::before {
  display: none;
}

/* Gold gradient divider — giữa branding và menu */
.header-pc .header-gr.left-gr::before {
  content: "";
  display: block;
  flex-shrink: 0;
  align-self: center;
  width: 1px;
  height: calc(var(--tlkv-brand-lockup-h) + 0.5rem);
  margin: 0 42px;
  background: linear-gradient(
    to bottom,
    transparent,
    rgba(199, 154, 59, 0.18),
    rgba(199, 154, 59, 0.55),
    rgba(199, 154, 59, 0.18),
    transparent
  );
}

.header-gr.left-gr {
  display: flex;
  align-items: center;
  flex: 0 1 auto;
  margin-left: var(--tlkv-header-nav-offset);
}

.header-pc .header-gr.left-gr {
  margin-left: 0;
  padding-left: 0;
}

.header-gr.right-gr {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1 1 auto;
  margin-left: auto;
  padding-left: 1.5rem;
}

.header-gr-bot {
  display: flex;
  align-items: center;
  gap: var(--tlkv-header-nav-gap);
  flex-wrap: nowrap;
}

.header-gr-item {
  position: relative;
}

/* ----- Navigation ----- */
.header .nav-link {
  display: inline-flex;
  align-items: center;
  padding: 3px 1.0625rem;
  color: var(--tlkv-header-text);
  font-family: var(--tlkv-font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  background: transparent;
  border: none;
  position: relative;
  transition: color 0.2s ease;
}

.header .nav-link:hover {
  color: var(--tlkv-header-gold);
  text-decoration: none;
}

.header .nav-link.active {
  color: var(--tlkv-header-gold);
  font-weight: 600;
  text-decoration: none;
}

.header .nav-link.active::after {
  content: "";
  position: absolute;
  left: 1.0625rem;
  right: 1.0625rem;
  bottom: 2px;
  height: 1.5px;
  background: var(--tlkv-header-gold);
  border-radius: 1px;
}

.header .nav-link.link-w-ic img {
  width: 18px;
  height: 18px;
}

/* ----- Hotline / CTA ----- */
.header-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-cta__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: 1px solid rgba(201, 161, 74, 0.45);
  color: var(--tlkv-header-gold);
  background: rgba(201, 161, 74, 0.06);
}

.header-cta__icon svg {
  display: block;
}

.header-cta__copy {
  text-align: left;
  line-height: 1.35;
}

.header-cta__label {
  display: block;
  font-size: 0.625rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--tlkv-header-muted);
  margin-bottom: 1px;
}

.header-cta__phone {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--tlkv-header-text);
  letter-spacing: 0.02em;
  text-decoration: none;
  font-variant-numeric: tabular-nums;
  transition: color 0.2s ease;
}

.header-cta__phone:hover {
  color: var(--tlkv-header-gold);
  text-decoration: none;
}

/* ----- Submenu ----- */
.header .has-submenu {
  position: relative;
}

.header .sanpham-subheader {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  padding-top: 0.5rem;
  z-index: 100;
}

.header .has-submenu:hover .sanpham-subheader {
  display: block;
}

.header .sanpham-category {
  background: var(--tlkv-header-pearl);
  border-radius: 10px;
  border: 1px solid var(--tlkv-header-border);
  box-shadow: 0 8px 24px rgba(26, 26, 26, 0.06);
  padding: 1.125rem 1.25rem;
}

.header .category-name {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--tlkv-header-muted);
  margin: 0 0 0.5rem;
  font-weight: 600;
}

.header .category-link {
  display: block;
  padding: 0.35rem 0;
  color: var(--tlkv-header-text);
  font-size: 1rem;
}

.header .category-link:hover {
  color: var(--tlkv-header-gold);
  text-decoration: none;
}

/* ==========================================================================
   Mobile
   ========================================================================== */
.header-mb {
  display: none;
  position: relative;
  background: var(--tlkv-header-brand-red);
  border-bottom: 1px solid rgba(240, 229, 87, 0.18);
}

.header-mb > .container {
  position: relative;
  z-index: 1;
}

.header-mb-wrap {
  display: flex;
  align-items: center;
  gap: 0;
  min-height: 58px;
}

.header-brand--mb {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0.375rem 0;
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.header-brand--mb .header-brand__link {
  gap: 0;
  justify-content: flex-start;
  align-items: center;
  width: auto;
  max-width: 100%;
  min-width: 0;
}

.header-brand--mb .header-brand__mark {
  --tlkv-header-mark-h: clamp(46px, 12vw, 56px);
  --tlkv-header-mark-w: clamp(52px, 13.5vw, 64px);
  flex: 0 0 var(--tlkv-header-mark-w);
  width: var(--tlkv-header-mark-w);
  height: var(--tlkv-header-mark-h);
  transform: translateY(0);
}

.header-brand--mb .header-brand__mark .site-logo-img {
  transform: scale(1.12);
}

/* Mobile: một dòng — THĂNG LONG KIM VIỆT, sát logo + padding trái */
.header-brand--mb .header-brand__text {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.14em;
  flex: 0 1 auto;
  min-width: 0;
  padding-top: 0;
  padding-left: 6px;
  text-align: left;
}

.header-brand--mb .header-brand__line,
.header-brand--mb .header-brand__line--accent,
.header-brand--mb .header-brand__line:first-child {
  font-size: var(--tlkv-mb-brand-size, clamp(1.1625rem, 2.4vw + 0.81rem, 1.475rem));
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.015em;
  color: var(--tlkv-brand-name-color);
}

.header-brand--mb .header-brand__line--accent::before {
  display: none;
}

.mb-ham {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  cursor: pointer;
  border-radius: 6px;
}

.mb-ham:hover {
  background: rgba(255, 255, 255, 0.1);
}

.mb-ham span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: #ffffff;
  border-radius: 1px;
}

.header-mb-wrap .header-cta {
  display: none;
}

.header-mb-wrap .header-cta__icon {
  width: 2.125rem;
  height: 2.125rem;
}

.header-mb-wrap .header-cta__icon svg {
  width: 15px;
  height: 15px;
}

.header-mb-wrap .header-cta__label {
  display: none;
}

.header-mb-wrap .header-cta__phone {
  font-size: 0.8125rem;
}

/* Legacy mobile logo hook (if still present) */
.mb-logo {
  display: none;
}

/* Mobile drawer */
.header .menu-mb {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
}

.header .menu-mb.open {
  display: block;
}

.header .menu-mb-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26, 26, 26, 0.4);
}

.header .menu-mb-wrap {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: min(288px, 84vw);
  background: var(--tlkv-header-pearl);
  overflow-y: auto;
  box-shadow: 4px 0 24px rgba(26, 26, 26, 0.08);
  display: flex;
  flex-direction: column;
}

.header .menu-mb-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--tlkv-header-border);
  background: var(--tlkv-header-cream);
}

.header .close-menu {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  color: var(--tlkv-header-text);
  cursor: pointer;
  border-radius: 50%;
}

.header .close-menu:hover {
  background: rgba(201, 161, 74, 0.1);
}

.header .menu-mb-body {
  padding: 0 1rem 1.5rem;
}

.header .menu-mb-section {
  margin: 0;
  padding: 0;
  list-style: none;
}

.header .menu-mb-section > li {
  border-bottom: 1px solid var(--tlkv-header-border);
}

.header .menu-mb-section > li > a {
  display: flex;
  padding: 0.875rem 0.25rem;
  color: var(--tlkv-header-text);
  font-size: 0.9375rem;
  font-weight: 500;
}

.header .menu-mb-section > li > a:hover {
  color: var(--tlkv-header-gold);
  text-decoration: none;
}

.header .menu-subs.menu-mega {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1001;
  background: var(--tlkv-header-pearl);
  padding: 1rem;
  overflow-y: auto;
}

.header .menu-subs.menu-mega.open {
  display: block;
}

.header .menu-subs .mega-subs-title {
  display: block;
  padding: 0.75rem 0;
  margin-bottom: 0.5rem;
  font-weight: 600;
  border-bottom: 1px solid var(--tlkv-header-border);
}

.header .mega-subs-title,
.header .list-item .title,
.header .list-item ul li a {
  color: var(--tlkv-header-text);
}

.header .menu-subs.menu-mega .list-item ul li a {
  font-size: 0.984rem;
}

.header .mega-subs-title:hover,
.header .list-item .title:hover,
.header .list-item ul li a:hover {
  color: var(--tlkv-header-gold);
  text-decoration: none;
}

.header .list-item {
  padding: 0 0 0.5rem 0.5rem;
}

.header .list-item ul {
  margin: 0;
  padding: 0 0 0 0.75rem;
  list-style: none;
}

/* ----- Responsive ----- */
@media (max-width: 1199.98px) {
  :root {
    --tlkv-brand-line-1: 25px;
    --tlkv-brand-line-2: 36px;
    --tlkv-brand-track-1: 0.75px;
    --tlkv-brand-track-2: 1.45px;
    --tlkv-brand-gap: 0.8125rem;
    --tlkv-header-nav-offset: 8%;
    --tlkv-header-inner-min-h: 96px;
    --tlkv-header-divider-inset: 32px;
  }

  .header-pc .header-gr.left-gr::before {
    margin: 0 32px;
  }
}

@media (max-width: 991.98px) {
  .header-topbar__meta .header-topbar__sep,
  .header-topbar__meta .header-topbar__item:last-child {
    display: none;
  }

  :root {
    --tlkv-header-nav-offset: 6%;
  }

  .header .nav-link {
    padding: 3px 0.8125rem;
    font-size: 0.75rem;
  }
}

@media (max-width: 768px) {
  .header-pc {
    display: none;
  }

  .header-mb {
    display: block;
  }

  .header-topbar__cta {
    display: inline-flex !important;
    align-items: center;
    gap: 0.5rem;
    margin-left: 2px;
    padding-left: 8px;
    border-left: 1px solid var(--tlkv-header-border);
    text-decoration: none;
    color: inherit;
    flex-shrink: 0;
  }

  .header-topbar__cta:hover {
    text-decoration: none;
    color: inherit;
  }

  .header-topbar__cta .header-cta__icon {
    width: 1.75rem;
    height: 1.75rem;
  }

  .header-topbar__cta .header-cta__icon svg {
    width: 13px;
    height: 13px;
  }

  .header-topbar__cta .header-cta__copy {
    line-height: 1.2;
  }

  .header-topbar__cta .header-cta__label {
    display: block;
    font-size: 0.5rem;
    letter-spacing: 0.1em;
    margin-bottom: 0;
  }

  .header-topbar__cta .header-cta__phone {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--tlkv-header-text);
  }

  .header-mb-wrap > .header-cta {
    display: none !important;
  }
}

@media (max-width: 767.98px) {
  :root {
    /* Co giãn theo viewport — luôn hiển thị trọn tên sau logo + menu */
    --tlkv-mb-brand-size: clamp(1.1625rem, 2.4vw + 0.81rem, 1.475rem);
  }

  .header-brand--mb,
  .header-brand--mb .header-brand__link,
  .header-brand--mb .header-brand__text {
    justify-content: flex-start;
    text-align: left;
  }

  .header-brand--mb .header-brand__line,
  .header-brand--mb .header-brand__line--accent {
    text-align: left;
  }

  .header-topbar__inner {
    justify-content: flex-end;
  }

  .header-topbar__meta {
    display: none;
  }

  .header-topbar__zalo {
    margin-left: auto;
    gap: 8px;
  }

  .header-topbar__zalo-icon,
  .header-topbar__social-icon {
    width: 26px;
    height: 26px;
  }
}

/* Desktop navbar text only — responsive type + wrap (logo/brand untouched) */
@media (min-width: 1024px) {
  .header-topbar .container {
    max-width: 100%;
    overflow-x: hidden;
  }

  .header-pc .container {
    max-width: 100%;
    overflow-x: visible;
  }

  .header-topbar__meta {
    min-width: 0;
    flex: 1 1 auto;
  }

  .header-topbar__item {
    white-space: normal !important;
    overflow: visible !important;
    text-overflow: unset !important;
    overflow-wrap: anywhere !important;
    word-break: break-word !important;
    -webkit-line-clamp: unset !important;
    line-clamp: unset !important;
    line-height: 1.3;
  }

  .header-pc .header-brand,
  .header-pc .header-brand__link,
  .header-pc .header-brand__mark,
  .header-pc .header-brand__text,
  .header-pc .header-brand__line,
  .header-pc .header-brand__line--accent {
    flex-shrink: 0 !important;
  }

  .header-pc .header-gr.left-gr {
    flex: 1 1 auto;
    min-width: 0;
  }

  .header-pc .header-gr.left-gr::before {
    flex-shrink: 0;
  }

  .header-pc .header-gr-bot {
    flex-wrap: nowrap;
    min-width: 0;
  }

  .header-pc .header-gr.left-gr .header-gr-item {
    flex: 0 1 auto;
    flex-shrink: 1;
    min-width: 0;
  }

  .header-pc .nav-link {
    max-width: 100%;
    min-width: 0;
    flex-shrink: 1;
    height: auto;
    white-space: normal !important;
    overflow: visible !important;
    text-overflow: unset !important;
    overflow-wrap: anywhere !important;
    word-break: break-word !important;
    -webkit-line-clamp: unset !important;
    line-clamp: unset !important;
    line-height: 1.3 !important;
  }

  .header-pc .header-gr.right-gr {
    flex: 0 1 auto;
    flex-shrink: 1;
    min-width: 0;
  }

  .header-pc .header-cta {
    min-width: 0;
    flex-shrink: 1;
  }

  .header-pc .header-cta__icon {
    flex-shrink: 0;
  }

  .header-pc .header-cta__copy {
    min-width: 0;
    flex-shrink: 1;
    line-height: 1.3;
  }

  .header-pc .header-cta__label {
    white-space: normal !important;
    overflow: visible !important;
    text-overflow: unset !important;
    overflow-wrap: anywhere !important;
    word-break: break-word !important;
    -webkit-line-clamp: unset !important;
    line-clamp: unset !important;
    line-height: 1.3;
  }

  .header-pc .header-cta__phone {
    white-space: nowrap !important;
    overflow: visible !important;
    text-overflow: unset !important;
    font-variant-numeric: tabular-nums;
    overflow-wrap: normal !important;
    word-break: normal !important;
    line-height: 1.3;
  }
}