/* ============================================================
   Header (Desktop) — NHÔM VIỆT DŨNG · node Figma 777:3921
   Header trong suốt phủ hero (chữ #fff). Scroll → .header--scrolled.
   ============================================================ */

.header {
	/* ── Design tokens (BUILD-MANIFEST.designTokens) ── */
	--header-fg: #ffffff;
	--header-topbar-bg: rgba(0, 0, 0, 0.3);
	--header-divider: rgba(255, 255, 255, 0.5);
	--header-font: "Nunito Sans", sans-serif;
	--header-scrolled-bg: #ffffff;
	--header-scrolled-shadow: 0 0.25rem 1.25rem 0 rgba(0, 0, 0, 0.05);
	--header-topbar-bg-scrolled: #003253;
	--header-fg-scrolled: #003253;
	--header-blur: 0.625rem;
	/* TODO: blur radius chưa có trong Figma → tạm 0.625rem */

	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 100;
	display: flex;
	flex-direction: column;
	font-family: var(--header-font);
	color: var(--header-fg);
	transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

/* Search mở → header lấy giao diện trắng như khi scroll (Figma state BGR3). */
.header--scrolled,
.header--search-open {
	background-color: var(--header-scrolled-bg);
	box-shadow: var(--header-scrolled-shadow);
}

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

.header a:focus-visible,
.header button:focus-visible {
	outline: 0.125rem solid currentColor;
	outline-offset: 0.125rem;
}

/* ── Icon dùng CSS mask → tự đổi màu theo currentColor (scroll state) ── */
.header__icon {
	display: inline-block;
	flex-shrink: 0;
	background-color: currentColor;
	-webkit-mask-repeat: no-repeat;
	mask-repeat: no-repeat;
	-webkit-mask-position: center;
	mask-position: center;
	-webkit-mask-size: contain;
	mask-size: contain;
}

.header__icon--search {
	width: 1.5rem;
	height: 1.5rem;
	-webkit-mask-image: url(../../../../assets/images/header/ic-search.svg);
	mask-image: url(../../../../assets/images/header/ic-search.svg);
}

.header__icon--home {
	width: 1.6494rem;
	height: 1.6494rem;
	-webkit-mask-image: url(../../../../assets/images/header/ic-home.svg);
	mask-image: url(../../../../assets/images/header/ic-home.svg);
}

.header__icon--chevron {
	width: 0.5625rem;
	height: 0.375rem;
	-webkit-mask-image: url(../../../../assets/images/header/ic-chevron-down.svg);
	mask-image: url(../../../../assets/images/header/ic-chevron-down.svg);
}

/* ============================================================
   TOP BAR
   ============================================================ */
.header__topbar {
	position: relative;
	z-index: 1;
	width: 100%;
	height: 2.75rem;
	background-color: var(--header-topbar-bg);
	-webkit-backdrop-filter: blur(var(--header-blur));
	backdrop-filter: blur(var(--header-blur));
	transition: background-color 0.3s ease;
}

.header--scrolled .header__topbar,
.header--search-open .header__topbar {
	background-color: var(--header-topbar-bg-scrolled);
	-webkit-backdrop-filter: none;
	backdrop-filter: none;
}

.header__topbar-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 100%;
	padding: 0 6.25rem;
}

/* ── Language switcher ── */
.header__lang {
	position: relative;
}

.header__lang-toggle {
	display: inline-flex;
	align-items: center;
	padding: 0.1875rem 0;
	background: none;
	border: 0;
	cursor: pointer;
	color: inherit;
	font-family: inherit;
}

.header__lang-toggle>*+* {
	margin-left: 0.375rem;
}

.header__lang-flag {
	display: inline-flex;
	align-items: center;
}

.header__lang-flag :where(img, svg) {
	display: block;
	width: 0.8594rem;
	height: 0.625rem;
	border-radius: 0.1563rem;
	object-fit: cover;
}

.header__lang-flag--placeholder {
	width: 0.8594rem;
	height: 0.625rem;
	border-radius: 0.1563rem;
	background-color: #f93939;
}

.header__lang-current {
	font-size: 0.75rem;
	font-weight: 600;
	line-height: 1.1;
	letter-spacing: -0.0075rem;
	text-transform: uppercase;
}

.header__lang.is-open .header__lang-toggle .header__icon--chevron {
	transform: rotate(180deg);
}

.header__lang-dropdown {
	position: absolute;
	top: calc(100% + 0.5rem);
	left: 0;
	min-width: 6rem;
	margin: 0;
	padding: 0.5rem;
	list-style: none;
	background-color: #ffffff;
	border-radius: 0.25rem;
	box-shadow: 0 0.25rem 1.25rem 0 rgba(0, 0, 0, 0.12);
	opacity: 0;
	visibility: hidden;
	transform: translateY(-0.375rem);
	transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
	z-index: 5;
}

.header__lang.is-open .header__lang-dropdown {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.header__lang-item+.header__lang-item {
	margin-top: 0.5rem;
}

.header__lang-link {
	display: flex;
	align-items: center;
	color: #003253;
	font-size: 0.75rem;
	font-weight: 500;
	line-height: 1.125rem;
}

.header__lang-link .header__lang-flag {
	margin-right: 0.5rem;
}

.header__lang-dropdown .header__lang-flag :where(img, svg) {
	width: 1rem;
	height: 1rem;
	border-radius: 50%;
}

/* ── Cụm tiện ích bên phải ── */
.header__utility {
	display: flex;
	align-items: center;
}

.header__partners {
	display: flex;
	align-items: center;
	padding: 0 1.1rem;
}

.header__partner+.header__partner {
	margin-left: 0.7611rem;
}

.header__partner {
	display: inline-flex;
	align-items: center;
}

.header__partner-img {
	display: block;
	height: 1.875rem;
	width: auto;
	object-fit: contain;
}

.header__utility-list {
	display: flex;
	align-items: center;
	margin: 0;
	padding: 0;
	list-style: none;
}

.header__utility-item {
	position: relative;
	display: flex;
	align-items: center;
	padding: 0.55rem 0.66rem;
}

.header__utility-item--catalogue::after {
	content: "";
	position: absolute;
	right: 0.0194rem;
	top: 50%;
	transform: translateY(-50%);
	width: 1px;
	height: 0.6594rem;
	background-color: var(--header-divider);
}

.header__utility-link {
	font-size: 0.75rem;
	font-weight: 800;
	line-height: 1.3333;
	text-transform: uppercase;
	white-space: nowrap;
}

.header__search {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	margin-left: 0.25rem;
	padding: 0 0.25rem;
	background: none;
	border: 0;
	cursor: pointer;
	color: inherit;
}

/* ============================================================
   NAV
   ============================================================ */
.header__nav {
	width: 100%;
	height: 3.8494rem;
	-webkit-backdrop-filter: blur(var(--header-blur));
	backdrop-filter: blur(var(--header-blur));
	transition: color 0.3s ease;
}

.header--scrolled .header__nav,
.header--search-open .header__nav {
	color: var(--header-fg-scrolled);
	-webkit-backdrop-filter: none;
	backdrop-filter: none;
}

.header__nav-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 100%;
	padding: 0 6.25rem;
}

.header__menu {
	display: flex;
	align-items: center;
	margin: 0;
	padding: 0;
	list-style: none;
}

.header__nav-item {
	display: flex;
	align-items: center;
}

.header__nav-home {
	display: flex;
	align-items: center;
	padding: 1.1rem 0.7rem 1.1rem 0;
}

.header__nav-link {
	display: flex;
	align-items: center;
	padding: 1.1rem 0.7rem;
	font-size: 0.875rem;
	font-weight: 800;
	line-height: 1.25rem;
	text-transform: uppercase;
	white-space: nowrap;
}

.header__nav-link .header__icon--chevron {
	margin-left: 0.375rem;
}

/* ── Logo giữa ── */
.header__logo {
	display: flex;
	align-items: center;
	flex-shrink: 0;
}

.header__logo-img {
	display: block;
	width: 4.6875rem;
	height: 3.375rem;
	object-fit: contain;
}

/* ============================================================
   SEARCH PANEL — dropdown trắng thả dưới nav (Figma state BGR3 1532:12863).
   Absolute top:100% giống mega-menu; .header (fixed) là containing block.
   ============================================================ */
.header__search-panel {
	position: absolute;
	top: 100%;
	left: 0;
	right: 0;
	z-index: 40;
	background-color: #ffffff;
	box-shadow: var(--header-scrolled-shadow);
	color: #003253;

	/* Ẩn mặc định */
	opacity: 0;
	visibility: hidden;
	transform: translateY(-0.5rem);
	pointer-events: none;
	transition: opacity 0.28s ease, transform 0.28s ease, visibility 0.28s ease;
}

.header__search-panel.is-open {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
	pointer-events: auto;
}

.header__search-panel-inner {
	padding: 1.6875rem 6.25rem 2.75rem 6.25rem;
}

/* Divider trên đầu + khoảng cách tới heading (Line 1220 → 1.5rem → label) */
.header__search-heading {
	margin: 0;
	padding-top: 1.5rem;
	border-top: 1px solid #dcdcdc;
	font-size: 0.875rem;
	font-weight: 600;
	line-height: 1.25rem;
	letter-spacing: 0.0625rem;
	text-transform: uppercase;
	color: rgba(0, 50, 83, 0.5);
}

/* ── Form: ô nhập (fill) + nút submit, margin thay gap ── */
.header__search-form {
	display: flex;
	align-items: stretch;
	margin-top: 1.5rem;
}

.header__search-field {
	display: flex;
	align-items: center;
	flex: 1 1 0;
	min-width: 0;
	height: 2.9375rem;
	padding: 0 0.875rem;
	background-color: #f8f8f8;
	border-radius: 0.25rem;
}

.header__search-field-icon {
	display: inline-flex;
	flex: 0 0 auto;
	width: 1.125rem;
	height: 1.125rem;
	margin-right: 0.625rem;
	color: rgba(0, 51, 75, 0.8);
}

.header__search-field-icon svg {
	width: 100%;
	height: 100%;
}

.header__search-input {
	flex: 1 1 auto;
	min-width: 0;
	padding: 0;
	border: 0;
	background: transparent;
	outline: none;
	font-family: inherit;
	font-size: 0.875rem;
	font-weight: 400;
	line-height: 1.5rem;
	letter-spacing: -0.0156rem;
	color: #131313;
}

.header__search-input::placeholder {
	color: rgba(19, 19, 19, 0.4);
	opacity: 1;
}

/* ── Nút submit "Tìm kiếm" — banner 2 đầu vát (Exclude 0.625rem/cạnh) ── */
.header__search-submit {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex: 0 0 auto;
	height: 2.9375rem;
	margin-left: 0.9375rem;
	padding: 0 1.5625rem;
	border: 0;
	background-color: #079de2;
	color: #ffffff;
	cursor: pointer;
	transition: background-color 0.2s ease;
	clip-path: polygon(0.625rem 0,
			calc(100% - 0.625rem) 0,
			100% 50%,
			calc(100% - 0.625rem) 100%,
			0.625rem 100%,
			0 50%);
}

.header__search-submit:hover {
	background-color: #0688c4;
}

.header__search-submit-icon {
	display: inline-flex;
	flex: 0 0 auto;
	width: 1.5rem;
	height: 1.5rem;
	margin-right: 0.5rem;
}

.header__search-submit-icon svg {
	width: 100%;
	height: 100%;
}

.header__search-submit-text {
	font-size: 1rem;
	font-weight: 800;
	line-height: 1.5rem;
	letter-spacing: -0.0156rem;
	white-space: nowrap;
}

/* ============================================================
   MOBILE — node Figma riêng (Header/MB, template-parts/layouts/header/mobile),
   ẩn header desktop để nhường chỗ cho .header-mobile.
   ============================================================ */
@media screen and (max-width: 639.98px) {
	.header {
		display: none;
	}

	.header__topbar-inner,
	.header__nav-inner {
		padding: 0 1rem;
	}
}