/* =========================================================
   PSG — RELATED GAS CHROMATOGRAPHY INSTRUMENTS
   Apple editorial / master-detail interface
   ========================================================= */

.rp-gc-section {
	--rp-bg: #ffffff;
	--rp-text: #1d1d1f;
	--rp-muted: #86868b;
	--rp-line: #d2d2d7;
	--rp-soft-line: #e8e8ed;
	--rp-soft: #f5f5f7;
	--rp-accent: #0047ff;

	background: var(--rp-bg);
	color: var(--rp-text);
	padding: clamp(48px, 6.5vw, 82px) 0;
	font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
	font-size: 12px;
	font-weight: 400;
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}

.rp-gc-section *,
.rp-gc-section *::before,
.rp-gc-section *::after {
	box-sizing: border-box;
}

.rp-gc-section [hidden] {
	display: none !important;
}

.rp-gc-section .rp-container {
	width: min(100% - 64px, 1180px);
	margin-inline: auto;
}

/* =========================================================
   HEADER
   ========================================================= */

.rp-gc-section .rp-header {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(240px, 390px);
	align-items: end;
	gap: 36px;
	margin-bottom: 34px;
}

.rp-gc-section .rp-header-main {
	min-width: 0;
}

.rp-gc-section .rp-eyebrow {
	margin: 0 0 13px;
	color: var(--rp-muted);
	font-size: 9px;
	font-weight: 650;
	letter-spacing: .15em;
	line-height: 1.6;
	text-transform: uppercase;
}

.rp-gc-section .rp-title {
	max-width: 560px;
	margin: 0;
	color: var(--rp-text);
	font-size: clamp(25px, 3vw, 34px);
	font-weight: 600;
	letter-spacing: -.045em;
	line-height: 1.16;
}

.rp-gc-section .rp-description {
	max-width: 360px;
	margin: 0 0 3px auto;
	color: var(--rp-muted);
	font-size: 11px;
	font-weight: 400;
	line-height: 1.9;
}

/* =========================================================
   MASTER-DETAIL FRAME
   ========================================================= */

.rp-gc-section .rp-explorer {
	display: grid;
	grid-template-columns: minmax(230px, .76fr) minmax(0, 1.8fr);
	align-items: stretch;
	border-top: 1px solid var(--rp-text);
	border-bottom: 1px solid var(--rp-line);
}

/* =========================================================
   LEFT — INSTRUMENT DIRECTORY
   ========================================================= */

.rp-gc-section .rp-explorer-sidebar {
	display: flex;
	flex-direction: column;
	min-width: 0;
	padding: 20px 0 18px;
	border-right: 1px solid var(--rp-line);
}

.rp-gc-section .rp-sidebar-heading {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	padding: 0 22px 16px 4px;
	color: var(--rp-muted);
	font-size: 8px;
	font-weight: 650;
	letter-spacing: .12em;
	line-height: 1.6;
}

.rp-gc-section .rp-instrument-count {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 22px;
	height: 22px;
	padding: 0 5px;
	border: 1px solid var(--rp-soft-line);
	border-radius: 50%;
	color: var(--rp-text);
	font-size: 9px;
	font-weight: 500;
	letter-spacing: 0;
}

.rp-gc-section .rp-instrument-list {
	display: flex;
	flex-direction: column;
	min-width: 0;
}

/* Instrument selection row */

.rp-gc-section .rp-instrument-option {
	position: relative;
	display: grid;
	grid-template-columns: minmax(0, 1fr) 22px;
	align-items: center;
	gap: 10px;
	width: 100%;
	min-height: 79px;
	padding: 14px 19px 14px 12px;
	border: 0;
	border-top: 1px solid transparent;
	border-bottom: 1px solid transparent;
	border-radius: 0;
	background: transparent;
	color: var(--rp-text);
	text-align: left;
	cursor: pointer;
	transition:
		background .2s ease,
		border-color .2s ease;
	-webkit-tap-highlight-color: transparent;
}

.rp-gc-section .rp-instrument-option:hover {
	background: #fafafa;
}

.rp-gc-section .rp-instrument-option.is-active {
	border-top-color: var(--rp-soft-line);
	border-bottom-color: var(--rp-soft-line);
	background: var(--rp-soft);
}

.rp-gc-section .rp-instrument-option:focus-visible {
	z-index: 1;
	outline: 2px solid var(--rp-accent);
	outline-offset: -3px;
}

.rp-gc-section .rp-option-copy {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 4px;
	min-width: 0;
}

.rp-gc-section .rp-option-brand {
	color: var(--rp-muted);
	font-size: 8px;
	font-weight: 650;
	letter-spacing: .12em;
	line-height: 1.5;
	text-transform: uppercase;
	overflow-wrap: anywhere;
}

.rp-gc-section .rp-option-model {
	color: var(--rp-text);
	font-size: 12px;
	font-weight: 600;
	letter-spacing: -.015em;
	line-height: 1.5;
	overflow-wrap: anywhere;
	transition: color .2s ease;
}

.rp-gc-section .rp-option-name {
	display: -webkit-box;
	max-width: 100%;
	overflow: hidden;
	color: var(--rp-muted);
	font-size: 10px;
	font-weight: 400;
	line-height: 1.65;
	overflow-wrap: anywhere;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 2;
}

.rp-gc-section .rp-instrument-option.is-active .rp-option-model {
	color: var(--rp-accent);
}

.rp-gc-section .rp-option-arrow {
	display: grid;
	width: 22px;
	height: 22px;
	place-items: center;
	border-radius: 50%;
	color: #a1a1a6;
	font-size: 13px;
	font-weight: 400;
	line-height: 1;
	opacity: 0;
	transform: translate(-3px, 3px);
	transition:
		opacity .2s ease,
		transform .2s ease,
		color .2s ease;
}

.rp-gc-section .rp-instrument-option:hover .rp-option-arrow,
.rp-gc-section .rp-instrument-option.is-active .rp-option-arrow {
	color: var(--rp-accent);
	opacity: 1;
	transform: translate(0, 0);
}

.rp-gc-section .rp-sidebar-note {
	max-width: 230px;
	margin: auto 0 0;
	padding: 25px 24px 0 12px;
	color: var(--rp-muted);
	font-size: 9px;
	line-height: 1.85;
}

/* =========================================================
   RIGHT — SELECTED INSTRUMENT
   ========================================================= */

.rp-gc-section .rp-explorer-details {
	min-width: 0;
	padding: 0 0 0 clamp(24px, 4vw, 48px);
}

.rp-gc-section .rp-instrument-detail {
	min-width: 0;
	padding: 27px 0 24px;
	animation: rp-gc-detail-in .22s ease-out;
}

.rp-gc-section .rp-instrument-detail.is-active {
	display: block;
}

/* Selected product header */

.rp-gc-section .rp-detail-header {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 20px;
	padding-bottom: 22px;
	border-bottom: 1px solid var(--rp-line);
}

.rp-gc-section .rp-detail-heading {
	min-width: 0;
}

.rp-gc-section .rp-detail-eyebrow {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px;
	margin: 0 0 12px;
	color: var(--rp-muted);
	font-size: 8px;
	font-weight: 650;
	letter-spacing: .12em;
	line-height: 1.7;
	text-transform: uppercase;
}

.rp-gc-section .rp-detail-eyebrow span {
	color: #c7c7cc;
}

.rp-gc-section .rp-detail-title {
	margin: 0;
	color: var(--rp-text);
	font-size: clamp(22px, 2.4vw, 29px);
	font-weight: 600;
	letter-spacing: -.045em;
	line-height: 1.2;
	overflow-wrap: anywhere;
}

.rp-gc-section .rp-detail-subtitle {
	margin: 8px 0 0;
	color: var(--rp-muted);
	font-size: 11px;
	font-weight: 400;
	line-height: 1.75;
}

.rp-gc-section .rp-detail-index {
	flex: 0 0 auto;
	padding-top: 1px;
	color: #d2d2d7;
	font-size: 23px;
	font-weight: 300;
	letter-spacing: -.06em;
	line-height: 1;
}

/* =========================================================
   OVERVIEW + SPECIFICATIONS
   ========================================================= */

.rp-gc-section .rp-detail-body {
	display: grid;
	grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
	gap: clamp(22px, 3.2vw, 40px);
	align-items: start;
	padding-top: 23px;
}

.rp-gc-section .rp-detail-overview,
.rp-gc-section .rp-detail-specifications {
	min-width: 0;
}

.rp-gc-section .rp-detail-label {
	margin: 0 0 12px;
	color: var(--rp-muted);
	font-size: 8px;
	font-weight: 650;
	letter-spacing: .13em;
	line-height: 1.6;
}

.rp-gc-section .rp-product-summary {
	margin: 0;
	color: #515154;
	font-size: 11px;
	font-weight: 400;
	line-height: 1.95;
	overflow-wrap: anywhere;
}

.rp-gc-section .rp-overview-meta {
	display: flex;
	flex-direction: column;
	gap: 12px;
	margin-top: 22px;
	padding-top: 15px;
	border-top: 1px solid var(--rp-soft-line);
}

.rp-gc-section .rp-overview-meta div {
	display: grid;
	grid-template-columns: minmax(72px, .75fr) minmax(0, 1.25fr);
	gap: 10px;
	align-items: start;
}

.rp-gc-section .rp-overview-meta span {
	color: var(--rp-muted);
	font-size: 9px;
	line-height: 1.7;
}

.rp-gc-section .rp-overview-meta strong {
	color: var(--rp-text);
	font-size: 9px;
	font-weight: 550;
	line-height: 1.7;
	overflow-wrap: anywhere;
}

/* Specification heading */

.rp-gc-section .rp-section-heading {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 13px;
}

.rp-gc-section .rp-section-heading h4 {
	margin: 0;
	color: var(--rp-text);
	font-size: 11px;
	font-weight: 650;
	letter-spacing: -.01em;
	line-height: 1.6;
}

.rp-gc-section .rp-section-heading > span {
	flex: 0 0 auto;
	color: var(--rp-muted);
	font-size: 8px;
	line-height: 1.6;
}

.rp-gc-section .rp-spec-list {
	margin: 0;
	border-top: 1px solid var(--rp-line);
}

.rp-gc-section .rp-spec-row {
	display: grid;
	grid-template-columns: minmax(90px, .8fr) minmax(0, 1.2fr);
	gap: 13px;
	padding: 10px 0;
	border-bottom: 1px solid var(--rp-soft-line);
}

.rp-gc-section .rp-spec-row dt,
.rp-gc-section .rp-spec-row dd {
	min-width: 0;
	margin: 0;
	font-size: 10px;
	line-height: 1.8;
	overflow-wrap: anywhere;
	word-break: normal;
}

.rp-gc-section .rp-spec-row dt {
	color: var(--rp-muted);
	font-weight: 400;
}

.rp-gc-section .rp-spec-row dd {
	color: #29292b;
	font-weight: 450;
}

.rp-gc-section .rp-empty-state {
	margin: 0;
	padding: 14px 0;
	color: var(--rp-muted);
	font-size: 10px;
	line-height: 1.8;
}

/* =========================================================
   APPLICATIONS + CONFIGURATION
   ========================================================= */

.rp-gc-section .rp-detail-extras {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
	gap: 28px;
	margin-top: 26px;
	padding-top: 21px;
	border-top: 1px solid var(--rp-line);
}

.rp-gc-section .rp-extra-block {
	min-width: 0;
	margin: 0;
}

.rp-gc-section .rp-extra-block h4 {
	margin: 0 0 13px;
	color: var(--rp-text);
	font-size: 10px;
	font-weight: 650;
	letter-spacing: -.01em;
	line-height: 1.7;
}

.rp-gc-section .rp-application-list {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.rp-gc-section .rp-application-list li {
	max-width: 100%;
	padding: 6px 8px;
	border: 1px solid var(--rp-soft-line);
	border-radius: 3px;
	color: #515154;
	font-size: 9px;
	font-weight: 400;
	line-height: 1.6;
	overflow-wrap: anywhere;
}

.rp-gc-section .rp-config-block {
	padding-left: 14px;
	border-left: 1px solid var(--rp-accent);
}

.rp-gc-section .rp-config-block h4 {
	margin-bottom: 8px;
}

.rp-gc-section .rp-config-block p {
	margin: 0;
	color: #626267;
	font-size: 10px;
	line-height: 1.9;
	overflow-wrap: anywhere;
}

/* =========================================================
   MANUFACTURER SOURCE
   ========================================================= */

.rp-gc-section .rp-detail-footer {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 10px;
	margin-top: 22px;
	padding-top: 14px;
	border-top: 1px solid var(--rp-soft-line);
	font-size: 9px;
	line-height: 1.8;
}

.rp-gc-section .rp-detail-footer > span {
	color: var(--rp-muted);
}

.rp-gc-section .rp-detail-footer a {
	display: inline-flex;
	align-items: baseline;
	gap: 6px;
	color: var(--rp-text);
	text-decoration: underline;
	text-decoration-color: #c7c7cc;
	text-underline-offset: 3px;
	overflow-wrap: anywhere;
	transition: color .2s ease;
}

.rp-gc-section .rp-detail-footer a:hover {
	color: var(--rp-accent);
}

.rp-gc-section .rp-detail-footer a span {
	font-size: 11px;
	text-decoration: none;
}

/* =========================================================
   FOOTNOTE
   ========================================================= */

.rp-gc-section .rp-footnote {
	max-width: 820px;
	margin: 19px 0 0;
	color: var(--rp-muted);
	font-size: 9px;
	font-weight: 400;
	line-height: 1.9;
}

/* =========================================================
   TRANSITION
   ========================================================= */

@keyframes rp-gc-detail-in {
	from {
		opacity: 0;
		transform: translateY(4px);
	}

	to {
		opacity: 1;
		transform: translateY(0);
	}
}

/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 900px) {
	.rp-gc-section .rp-container {
		width: min(100% - 40px, 1180px);
	}

	.rp-gc-section .rp-explorer {
		grid-template-columns: minmax(195px, .72fr) minmax(0, 1.6fr);
	}

	.rp-gc-section .rp-explorer-details {
		padding-left: 24px;
	}

	.rp-gc-section .rp-instrument-option {
		padding-right: 12px;
		padding-left: 10px;
	}

	.rp-gc-section .rp-detail-body {
		grid-template-columns: 1fr;
		gap: 25px;
	}

	.rp-gc-section .rp-overview-meta {
		display: grid;
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 12px;
	}

	.rp-gc-section .rp-detail-extras {
		gap: 20px;
	}
}

/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 620px) {
	.rp-gc-section {
		padding: 43px 0;
	}

	.rp-gc-section .rp-container {
		width: calc(100% - 36px);
	}

	.rp-gc-section .rp-header {
		grid-template-columns: 1fr;
		gap: 11px;
		margin-bottom: 24px;
	}

	.rp-gc-section .rp-eyebrow {
		margin-bottom: 10px;
	}

	.rp-gc-section .rp-title {
		font-size: 27px;
		line-height: 1.2;
	}

	.rp-gc-section .rp-description {
		max-width: 420px;
		margin: 0;
		font-size: 10px;
		line-height: 1.85;
	}

	/* List remains on top; selected detail sits below */

	.rp-gc-section .rp-explorer {
		grid-template-columns: minmax(0, 1fr);
	}

	.rp-gc-section .rp-explorer-sidebar {
		padding: 16px 0 12px;
		border-right: 0;
		border-bottom: 1px solid var(--rp-line);
	}

	.rp-gc-section .rp-sidebar-heading {
		padding: 0 2px 12px;
		font-size: 8px;
	}

	.rp-gc-section .rp-instrument-list {
		display: grid;
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 0;
		border-top: 1px solid var(--rp-soft-line);
	}

	.rp-gc-section .rp-instrument-option {
		grid-template-columns: minmax(0, 1fr) 16px;
		align-content: start;
		gap: 5px;
		min-height: 85px;
		padding: 12px 9px;
		border: 0;
		border-right: 1px solid var(--rp-soft-line);
		border-bottom: 1px solid var(--rp-soft-line);
	}

	.rp-gc-section .rp-instrument-option:nth-child(2n) {
		border-right: 0;
	}

	.rp-gc-section .rp-instrument-option.is-active {
		background: var(--rp-soft);
		box-shadow: inset 0 -2px 0 var(--rp-accent);
	}

	.rp-gc-section .rp-option-copy {
		gap: 3px;
	}

	.rp-gc-section .rp-option-brand {
		font-size: 7px;
	}

	.rp-gc-section .rp-option-model {
		font-size: 11px;
	}

	.rp-gc-section .rp-option-name {
		font-size: 9px;
		line-height: 1.55;
	}

	.rp-gc-section .rp-option-arrow {
		width: 16px;
		height: 16px;
		font-size: 11px;
		opacity: 1;
		transform: none;
	}

	.rp-gc-section .rp-sidebar-note {
		max-width: none;
		margin: 12px 0 0;
		padding: 0 2px;
		font-size: 9px;
	}

	.rp-gc-section .rp-explorer-details {
		padding: 0;
	}

	.rp-gc-section .rp-instrument-detail {
		padding: 23px 1px 20px;
	}

	.rp-gc-section .rp-detail-header {
		gap: 12px;
		padding-bottom: 18px;
	}

	.rp-gc-section .rp-detail-eyebrow {
		gap: 6px;
		margin-bottom: 10px;
		font-size: 7px;
	}

	.rp-gc-section .rp-detail-title {
		font-size: 23px;
	}

	.rp-gc-section .rp-detail-subtitle {
		margin-top: 6px;
		font-size: 10px;
	}

	.rp-gc-section .rp-detail-index {
		font-size: 19px;
	}

	.rp-gc-section .rp-detail-body {
		grid-template-columns: minmax(0, 1fr);
		gap: 24px;
		padding-top: 19px;
	}

	.rp-gc-section .rp-detail-label {
		margin-bottom: 9px;
	}

	.rp-gc-section .rp-product-summary {
		font-size: 10px;
		line-height: 1.9;
	}

	.rp-gc-section .rp-overview-meta {
		grid-template-columns: minmax(0, 1fr);
		gap: 10px;
		margin-top: 16px;
		padding-top: 13px;
	}

	.rp-gc-section .rp-overview-meta div {
		grid-template-columns: 90px minmax(0, 1fr);
	}

	.rp-gc-section .rp-section-heading h4 {
		font-size: 10px;
	}

	.rp-gc-section .rp-spec-row {
		grid-template-columns: minmax(95px, .8fr) minmax(0, 1.2fr);
		gap: 12px;
		padding: 10px 0;
	}

	.rp-gc-section .rp-spec-row dt,
	.rp-gc-section .rp-spec-row dd {
		font-size: 10px;
		line-height: 1.75;
	}

	.rp-gc-section .rp-detail-extras {
		grid-template-columns: minmax(0, 1fr);
		gap: 22px;
		margin-top: 23px;
		padding-top: 20px;
	}

	.rp-gc-section .rp-extra-block h4 {
		margin-bottom: 10px;
	}

	.rp-gc-section .rp-config-block {
		padding-left: 12px;
	}

	.rp-gc-section .rp-config-block p {
		font-size: 10px;
	}

	.rp-gc-section .rp-detail-footer {
		gap: 7px;
		margin-top: 19px;
		padding-top: 12px;
		font-size: 9px;
	}

	.rp-gc-section .rp-footnote {
		font-size: 9px;
		line-height: 1.8;
	}
}

/* =========================================================
   SMALL MOBILE
   ========================================================= */

@media (max-width: 360px) {
	.rp-gc-section .rp-container {
		width: calc(100% - 28px);
	}

	.rp-gc-section .rp-instrument-option {
		grid-template-columns: minmax(0, 1fr);
	}

	.rp-gc-section .rp-option-arrow {
		display: none;
	}

	.rp-gc-section .rp-spec-row {
		grid-template-columns: minmax(80px, .8fr) minmax(0, 1.2fr);
		gap: 9px;
	}
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
	.rp-gc-section *,
	.rp-gc-section *::before,
	.rp-gc-section *::after {
		animation: none !important;
		transition: none !important;
		scroll-behavior: auto !important;
	}
}