/* ==========================================================================
   TKC Báo Giá — giao diện công cụ báo giá sơ bộ
   Toàn bộ style được scope dưới .tkc-bg. Biến của theme TKC (navy/amber) được
   dùng khi có, kèm fallback để plugin chạy được với mọi theme khác.
   ========================================================================== */

.tkc-bg {
	--tkc-navy: var(--navy, #044468);
	--tkc-navy-900: var(--navy-900, #032f4a);
	--tkc-navy-600: var(--navy-600, #0b567f);
	--tkc-navy-100: var(--navy-100, #dcebf3);
	--tkc-navy-050: var(--navy-050, #f2f7fa);
	--tkc-amber: var(--amber, #f6a71c);
	--tkc-amber-dark: var(--amber-dark, #d98e08);
	--tkc-amber-light: var(--amber-light, #fdf1d8);
	--tkc-ink: var(--ink, #12212e);
	--tkc-muted: var(--muted, #51616e);
	--tkc-line: var(--line, #e3eaf0);
	--tkc-radius: var(--radius, 14px);
	--tkc-font-body: var(--font-body, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif);
	--tkc-font-display: var(--font-display, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif);
	--tkc-shadow: 0 10px 30px rgba(4, 68, 104, 0.14);

	font-family: var(--tkc-font-body);
	color: var(--tkc-ink);
	background: #fff;
	border: 1px solid var(--tkc-line);
	border-radius: var(--tkc-radius);
	box-shadow: 0 2px 14px rgba(4, 68, 104, 0.06);
	padding: clamp(1rem, 3vw, 2rem);
	margin: clamp(1.25rem, 3vw, 2.5rem) 0;
}

.tkc-bg *,
.tkc-bg *::before,
.tkc-bg *::after {
	box-sizing: border-box;
}

.tkc-bg p {
	margin: 0;
}

.tkc-bg__head {
	margin-bottom: 1.25rem;
}

.tkc-bg__eyebrow {
	display: inline-block;
	font-weight: 700;
	font-size: 0.75rem;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--tkc-amber-dark);
	margin: 0 0 0.4rem;
}

.tkc-bg__title {
	font-family: var(--tkc-font-display);
	color: var(--tkc-navy);
	font-size: clamp(1.25rem, 2.4vw, 1.75rem);
	line-height: 1.25;
	margin: 0 0 0.5rem;
}

.tkc-bg__lead {
	color: var(--tkc-muted);
	font-size: 0.95rem;
	max-width: 70ch;
}

/* ------------------------------- Tabs ---------------------------------- */

.tkc-bg__tabs {
	display: flex;
	gap: 0.35rem;
	padding: 0.3rem;
	background: var(--tkc-navy-050);
	border-radius: calc(var(--tkc-radius) - 2px);
	margin-bottom: 1.25rem;
}

.tkc-bg__tab {
	flex: 1 1 50%;
	font-family: var(--tkc-font-display);
	font-weight: 600;
	font-size: 0.98rem;
	color: var(--tkc-navy);
	background: transparent;
	border: 0;
	border-radius: calc(var(--tkc-radius) - 6px);
	padding: 0.7rem 1rem;
	cursor: pointer;
	transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.tkc-bg__tab:hover {
	background: rgba(4, 68, 104, 0.06);
}

.tkc-bg__tab.is-active {
	background: var(--tkc-navy);
	color: #fff;
	box-shadow: 0 4px 14px rgba(4, 68, 104, 0.22);
}

.tkc-bg__tab:focus-visible,
.tkc-bg__cta-btn:focus-visible,
.tkc-bg__select:focus-visible,
.tkc-bg__input:focus-visible,
.tkc-bg__check input:focus-visible {
	outline: 3px solid var(--tkc-amber);
	outline-offset: 2px;
}

/* ------------------------------ Layout -------------------------------- */

.tkc-bg__layout {
	display: grid;
	grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
	gap: clamp(1rem, 2.5vw, 1.75rem);
	align-items: start;
}

.tkc-bg__form {
	display: flex;
	flex-direction: column;
	gap: 1.1rem;
}

/* --------------------- Nhiều bộ cửa (bản 1.1.0) ------------------------ */

.tkc-bg__sets {
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

.tkc-bg__set {
	position: relative;
	display: flex;
	flex-direction: column;
	gap: 1.1rem;
	background: var(--tkc-navy-050);
	border: 1px solid var(--tkc-line);
	border-radius: 12px;
	padding: 0.85rem clamp(0.7rem, 2vw, 1rem) 1rem;
}

.tkc-bg__set-head {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 0.5rem;
}

.tkc-bg__set-name {
	font-family: var(--tkc-font-display);
	font-weight: 700;
	font-size: 0.95rem;
	color: var(--tkc-navy);
}

.tkc-bg__set-thermal {
	font-size: 0.72rem;
	font-weight: 700;
	line-height: 1.2;
	padding: 0.25rem 0.5rem;
	border-radius: 999px;
	border: 1px solid transparent;
	white-space: nowrap;
}

.tkc-bg__set-thermal--yes {
	background: #e6f4ea;
	border-color: #b7e0c3;
	color: #1a7f37;
}

.tkc-bg__set-thermal--no {
	background: #fff;
	border-color: var(--tkc-line);
	color: var(--tkc-muted);
}

.tkc-bg__set-thermal--unknown {
	background: var(--tkc-amber-light);
	border-color: #f2d79a;
	color: #7a5407;
}

.tkc-bg__set-remove {
	margin-left: auto;
	font-family: inherit;
	font-size: 0.78rem;
	font-weight: 700;
	color: #8e2418;
	background: #fff;
	border: 1.5px solid #f3c2bd;
	border-radius: 8px;
	padding: 0.35rem 0.6rem;
	cursor: pointer;
	transition: background 0.18s ease, color 0.18s ease;
}

.tkc-bg__set-remove:hover {
	background: #fdeceb;
}

.tkc-bg__set-remove:focus-visible,
.tkc-bg__set-btn:focus-visible {
	outline: 3px solid var(--tkc-amber);
	outline-offset: 2px;
}

.tkc-bg__set-summary {
	font-size: 0.8rem;
	color: var(--tkc-muted);
	line-height: 1.45;
	margin-top: -0.85rem;
}

.tkc-bg__set-actions {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 0.5rem;
}

.tkc-bg__set-btn {
	font-family: inherit;
	font-size: 0.88rem;
	font-weight: 700;
	border-radius: 10px;
	padding: 0.55rem 0.9rem;
	min-height: 44px;
	cursor: pointer;
	border: 1.5px solid transparent;
	transition: background 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.tkc-bg__set-btn--add {
	background: var(--tkc-navy);
	color: #fff;
	box-shadow: 0 4px 14px rgba(4, 68, 104, 0.18);
}

.tkc-bg__set-btn--add:hover {
	background: var(--tkc-navy-600);
}

.tkc-bg__set-btn--reset {
	background: #fff;
	color: var(--tkc-navy);
	border-color: var(--tkc-navy-100);
}

.tkc-bg__set-btn--reset:hover {
	background: var(--tkc-navy-050);
}

.tkc-bg__vat-all {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--tkc-navy);
	cursor: pointer;
}

.tkc-bg__vat-all input {
	width: 18px;
	height: 18px;
	accent-color: var(--tkc-amber);
	cursor: pointer;
	flex: 0 0 auto;
}

.tkc-bg__group {
	border: 0;
	border-top: 2px solid var(--tkc-navy-100);
	margin: 0;
	padding: 0.9rem 0 0;
	min-width: 0;
}

.tkc-bg__legend {
	font-family: var(--tkc-font-display);
	font-weight: 700;
	font-size: 0.85rem;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--tkc-amber-dark);
	padding: 0;
	margin-bottom: 0.2rem;
}

.tkc-bg__fields {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 0.85rem 0.9rem;
}

.tkc-bg__field {
	display: flex;
	flex-direction: column;
	gap: 0.3rem;
	min-width: 0;
}

.tkc-bg__field--wide {
	grid-column: 1 / -1;
}

.tkc-bg__label {
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--tkc-navy);
}

.tkc-bg__select,
.tkc-bg__input {
	width: 100%;
	font-family: inherit;
	font-size: 0.95rem;
	color: var(--tkc-ink);
	background: #fff;
	border: 1.5px solid var(--tkc-line);
	border-radius: 10px;
	padding: 0.62rem 0.7rem;
	min-height: 44px;
	transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.tkc-bg__select {
	appearance: none;
	-webkit-appearance: none;
	background-image: linear-gradient(45deg, transparent 50%, var(--tkc-navy) 50%), linear-gradient(135deg, var(--tkc-navy) 50%, transparent 50%);
	background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
	background-size: 5px 5px, 5px 5px;
	background-repeat: no-repeat;
	padding-right: 2.1rem;
}

.tkc-bg__select:hover,
.tkc-bg__input:hover {
	border-color: var(--tkc-navy-100);
}

.tkc-bg__select:focus,
.tkc-bg__input:focus {
	border-color: var(--tkc-navy);
	box-shadow: 0 0 0 3px rgba(4, 68, 104, 0.1);
	outline: none;
}

.tkc-bg__input-wrap {
	position: relative;
	display: flex;
	align-items: center;
}

.tkc-bg__input {
	padding-right: 3rem;
}

.tkc-bg__suffix {
	position: absolute;
	right: 0.7rem;
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--tkc-muted);
	pointer-events: none;
}

.tkc-bg__hint {
	font-size: 0.78rem;
	color: var(--tkc-muted);
	line-height: 1.45;
}

.tkc-bg__field--check {
	justify-content: flex-end;
}

.tkc-bg__check {
	display: flex;
	align-items: center;
	gap: 0.55rem;
	font-size: 0.92rem;
	font-weight: 600;
	color: var(--tkc-navy);
	background: var(--tkc-navy-050);
	border: 1.5px dashed var(--tkc-line);
	border-radius: 10px;
	padding: 0.6rem 0.7rem;
	min-height: 44px;
	cursor: pointer;
}

.tkc-bg__check input {
	width: 18px;
	height: 18px;
	accent-color: var(--tkc-amber);
	cursor: pointer;
	flex: 0 0 auto;
}

.tkc-bg__field--check.is-disabled .tkc-bg__check {
	opacity: 0.5;
	cursor: not-allowed;
}

.tkc-bg__field--check.is-disabled .tkc-bg__check input {
	cursor: not-allowed;
}

/* ------------------------------ Kết quả ------------------------------- */

.tkc-bg__aside {
	position: sticky;
	top: 90px;
}

.tkc-bg__result {
	background: var(--tkc-navy-050);
	border: 1px solid var(--tkc-line);
	border-radius: var(--tkc-radius);
	padding: clamp(0.9rem, 2vw, 1.25rem);
}

.tkc-bg__result-title {
	font-family: var(--tkc-font-display);
	font-size: 0.85rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--tkc-muted);
	margin: 0 0 0.75rem;
}

.tkc-bg__price {
	background: var(--tkc-navy);
	color: #fff;
	border-radius: 12px;
	padding: 0.9rem 1rem;
	margin-bottom: 1rem;
}

.tkc-bg__price-row {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 0.75rem;
	padding: 0.4rem 0;
	border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.tkc-bg__price-row:last-child {
	border-bottom: 0;
}

.tkc-bg__price-label {
	font-size: 0.8rem;
	color: #cfe3ef;
}

.tkc-bg__price-value {
	font-family: var(--tkc-font-display);
	font-size: 1rem;
	text-align: right;
	white-space: nowrap;
}

.tkc-bg__price-row.is-total .tkc-bg__price-value {
	color: var(--tkc-amber);
	font-size: 1.15rem;
}

/* ------------------ Cầu cách nhiệt + tổng hợp các bộ ------------------- */

.tkc-bg__active-set {
	font-size: 0.78rem;
	font-weight: 700;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--tkc-muted);
	margin: 0 0 0.5rem;
}

.tkc-bg__thermal-wrap {
	margin-bottom: 0.9rem;
}

.tkc-bg__thermal {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 0.5rem;
}

.tkc-bg__thermal-ref {
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--tkc-navy);
}

.tkc-bg__thermal-badge {
	font-size: 0.78rem;
	font-weight: 700;
	line-height: 1.2;
	padding: 0.3rem 0.6rem;
	border-radius: 999px;
	border: 1px solid transparent;
}

.tkc-bg__thermal-badge--yes {
	background: #e6f4ea;
	border-color: #b7e0c3;
	color: #1a7f37;
}

.tkc-bg__thermal-badge--no {
	background: #fff;
	border-color: var(--tkc-line);
	color: var(--tkc-muted);
}

.tkc-bg__thermal-badge--unknown {
	background: var(--tkc-amber-light);
	border-color: #f2d79a;
	color: #7a5407;
}

.tkc-bg__thermal-note,
.tkc-bg__thermal-guide {
	font-size: 0.78rem;
	color: var(--tkc-muted);
	line-height: 1.45;
	margin-top: 0.35rem;
}

.tkc-bg__thermal-guide {
	font-style: italic;
	opacity: 0.9;
}

.tkc-bg__sets-wrap {
	margin-bottom: 0.9rem;
}

.tkc-bg__sets-scroll {
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
	background: #fff;
	border: 1px solid var(--tkc-line);
	border-radius: 12px;
}

.tkc-bg__sets {
	width: 100%;
	min-width: 460px;
	border-collapse: collapse;
	font-size: 0.83rem;
}

.tkc-bg__sets th,
.tkc-bg__sets td {
	padding: 0.5rem 0.6rem;
	text-align: left;
	border-bottom: 1px solid var(--tkc-line);
	vertical-align: top;
}

.tkc-bg__sets thead th {
	font-size: 0.72rem;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: var(--tkc-muted);
	background: var(--tkc-navy-050);
	white-space: nowrap;
}

.tkc-bg__sets tbody th {
	font-weight: 700;
	color: var(--tkc-navy);
	white-space: nowrap;
}

.tkc-bg__sets td {
	color: var(--tkc-navy);
	white-space: nowrap;
}

.tkc-bg__sets td.tkc-bg__sets-config {
	white-space: normal;
	min-width: 12rem;
	color: var(--tkc-muted);
}

.tkc-bg__sets tbody tr.is-active {
	background: var(--tkc-navy-050);
}

.tkc-bg__sets tbody tr[data-tkc-set-row] {
	cursor: pointer;
}

.tkc-bg__sets tbody tr[data-tkc-set-row]:hover {
	background: var(--tkc-navy-050);
}

.tkc-bg__sets-error {
	color: #8e2418;
	font-weight: 600;
}

.tkc-bg__sets-config-note {
	display: block;
	margin-top: 0.2rem;
	color: var(--tkc-muted);
}

.tkc-bg__sets-total th,
.tkc-bg__sets-total td {
	background: var(--tkc-amber-light);
	color: #7a5407;
	font-weight: 700;
	font-size: 0.92rem;
	border-bottom: 0;
	white-space: nowrap;
}

.tkc-bg__sets-note {
	font-size: 0.78rem;
	color: var(--tkc-muted);
	line-height: 1.5;
	margin-top: 0.4rem;
}

.tkc-bg__errors {
	background: #fdeceb;
	border: 1px solid #f3c2bd;
	border-left: 4px solid #c0392b;
	border-radius: 10px;
	padding: 0.7rem 0.85rem;
	margin-bottom: 1rem;
	color: #8e2418;
	font-size: 0.88rem;
}

.tkc-bg__errors p + p {
	margin-top: 0.3rem;
}

.tkc-bg__sub-title {
	font-family: var(--tkc-font-display);
	font-size: 0.78rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--tkc-muted);
	margin: 0 0 0.5rem;
}

.tkc-bg__trail {
	background: #fff;
	border: 1px solid var(--tkc-line);
	border-radius: 12px;
	overflow: hidden;
	margin-bottom: 0.9rem;
}

.tkc-bg__trail-row {
	display: flex;
	justify-content: space-between;
	gap: 0.75rem;
	padding: 0.5rem 0.75rem;
	font-size: 0.85rem;
	border-bottom: 1px solid var(--tkc-line);
}

.tkc-bg__trail-row:last-child {
	border-bottom: 0;
}

.tkc-bg__trail-label {
	color: var(--tkc-muted);
	min-width: 0;
}

.tkc-bg__trail-value {
	font-weight: 600;
	color: var(--tkc-navy);
	text-align: right;
	white-space: nowrap;
}

.tkc-bg__trail-row--base,
.tkc-bg__trail-row--unit {
	background: var(--tkc-navy-050);
}

.tkc-bg__trail-row--add .tkc-bg__trail-value {
	color: var(--tkc-amber-dark);
}

.tkc-bg__trail-row--sub {
	background: var(--tkc-navy-050);
	font-weight: 700;
}

.tkc-bg__trail-row--total {
	background: var(--tkc-amber-light);
}

.tkc-bg__trail-row--total .tkc-bg__trail-label {
	color: #7a5407;
	font-weight: 700;
}

.tkc-bg__trail-row--total .tkc-bg__trail-value {
	color: #7a5407;
	font-size: 0.95rem;
}

.tkc-bg__trail-row--info .tkc-bg__trail-value {
	font-weight: 500;
	color: var(--tkc-muted);
}

.tkc-bg__warnings {
	list-style: none;
	margin: 0 0 0.9rem;
	padding: 0;
	background: var(--tkc-amber-light);
	border-left: 4px solid var(--tkc-amber);
	border-radius: 10px;
}

.tkc-bg__warnings li {
	position: relative;
	padding: 0.55rem 0.8rem 0.55rem 1.9rem;
	font-size: 0.83rem;
	color: #7a5407;
	line-height: 1.5;
}

.tkc-bg__warnings li::before {
	content: "!";
	position: absolute;
	left: 0.7rem;
	top: 0.55rem;
	width: 16px;
	height: 16px;
	border-radius: 50%;
	background: var(--tkc-amber);
	color: #fff;
	font-size: 0.7rem;
	font-weight: 700;
	line-height: 16px;
	text-align: center;
}

.tkc-bg__note {
	font-size: 0.8rem;
	color: var(--tkc-muted);
	line-height: 1.5;
	margin-bottom: 0.9rem;
}

/* -------------------------------- CTA --------------------------------- */

.tkc-bg__cta {
	display: grid;
	gap: 0.5rem;
}

.tkc-bg__cta-btn {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	min-height: 46px;
	padding: 0.65rem 0.9rem;
	border-radius: 10px;
	font-weight: 700;
	font-size: 0.92rem;
	line-height: 1.2;
	text-align: center;
	text-decoration: none;
	transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.tkc-bg__cta-btn small {
	display: block;
	font-size: 0.68rem;
	font-weight: 600;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	opacity: 0.85;
}

.tkc-bg__cta-btn:hover {
	transform: translateY(-2px);
}

.tkc-bg__cta-btn--call {
	background: var(--tkc-navy);
	color: #fff;
	box-shadow: 0 6px 18px rgba(4, 68, 104, 0.22);
}

.tkc-bg__cta-btn--zalo {
	background: #fff;
	color: var(--tkc-navy);
	border: 1.5px solid var(--tkc-navy-100);
}

.tkc-bg__cta-btn--quote {
	background: linear-gradient(135deg, var(--tkc-amber), #ffb838);
	color: var(--tkc-navy-900);
	box-shadow: 0 6px 18px rgba(246, 167, 28, 0.35);
}

.tkc-bg__cta-icon {
	font-size: 1rem;
}

.tkc-bg__disclaimer {
	margin-top: 1rem;
	font-size: 0.78rem;
	color: var(--tkc-muted);
	text-align: center;
}

.tkc-bg__noscript {
	margin-top: 0.5rem;
	font-size: 0.85rem;
	color: #8e2418;
	text-align: center;
}

.tkc-bg--empty {
	padding: 1.25rem;
	color: var(--tkc-muted);
}

/* ----------------------------- Responsive ----------------------------- */

@media (max-width: 980px) {
	.tkc-bg__layout {
		grid-template-columns: minmax(0, 1fr);
	}

	.tkc-bg__aside {
		position: static;
	}
}

@media (max-width: 560px) {
	.tkc-bg {
		padding: 1rem 0.85rem;
	}

	.tkc-bg__fields {
		grid-template-columns: minmax(0, 1fr);
	}

	.tkc-bg__tab {
		font-size: 0.9rem;
		padding: 0.6rem 0.5rem;
	}

	.tkc-bg__price-row {
		flex-direction: column;
		align-items: flex-start;
		gap: 0.15rem;
	}

	.tkc-bg__price-value {
		text-align: left;
	}

	.tkc-bg__trail-row {
		flex-direction: column;
		gap: 0.15rem;
	}

	.tkc-bg__trail-value {
		text-align: left;
	}

	/* Nhiều bộ cửa: mỗi bộ 1 khối gọn, bảng tổng hợp cuộn ngang khi cần. */
	.tkc-bg__set {
		padding: 0.75rem 0.7rem 0.9rem;
	}

	.tkc-bg__set-remove {
		margin-left: 0;
	}

	.tkc-bg__set-actions {
		flex-direction: column;
		align-items: stretch;
	}

	.tkc-bg__sets {
		min-width: 420px;
	}

	.tkc-bg__sets td.tkc-bg__sets-config {
		min-width: 9rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	.tkc-bg__cta-btn,
	.tkc-bg__tab {
		transition: none;
	}

	.tkc-bg__cta-btn:hover {
		transform: none;
	}
}