/*
Theme Name: Research Supply
Description: A clinical supply-house theme for WooCommerce stores selling research-use-only materials. Products are presented as specification sheets rather than merchandise, research-use notices sit in the template rather than being bolted on, and there is deliberately nowhere for testimonials or dosing guidance to appear.
Version: 1.0.0
Requires at least: 6.2
Tested up to: 6.8
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: research-supply
Tags: e-commerce, custom-colors, custom-logo, custom-menu, featured-images, translation-ready, accessibility-ready
*/

/* ==========================================================================
   Tokens
   ========================================================================== */

:root {
	--rs-bg: #ffffff;
	--rs-surface: #f6f8f9;
	--rs-surface-2: #eef2f4;
	--rs-ink: #14191f;
	--rs-muted: #5a6672;
	--rs-line: #dde4e9;
	--rs-line-strong: #c3cdd5;
	--rs-accent: #0f6b82;
	--rs-accent-dark: #0a4f60;
	--rs-accent-ink: #ffffff;
	--rs-notice-bg: #fbf7ea;
	--rs-notice-line: #e2d3a4;
	--rs-notice-ink: #4d4326;

	--rs-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	--rs-mono: ui-monospace, SFMono-Regular, Menlo, "Cascadia Mono", Consolas, "Liberation Mono", monospace;

	--rs-wrap: 1180px;
	--rs-gutter: 24px;
	--rs-radius: 4px;
}

/* ==========================================================================
   Reset and base
   ========================================================================== */

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

body {
	margin: 0;
	background: var(--rs-bg);
	color: var(--rs-ink);
	font-family: var(--rs-sans);
	font-size: 16px;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}

img {
	max-width: 100%;
	height: auto;
}

a {
	color: var(--rs-accent);
	text-decoration-thickness: 1px;
	text-underline-offset: 2px;
}

a:hover {
	color: var(--rs-accent-dark);
}

h1, h2, h3, h4 {
	margin: 0 0 0.5em;
	font-weight: 600;
	letter-spacing: -0.012em;
	line-height: 1.25;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.125rem; }

p { margin: 0 0 1em; }

hr {
	height: 1px;
	margin: 40px 0;
	border: 0;
	background: var(--rs-line);
}

/* Focus that is actually visible — the theme claims accessibility-ready. */
:focus-visible {
	outline: 2px solid var(--rs-accent);
	outline-offset: 2px;
}

.screen-reader-text {
	position: absolute !important;
	width: 1px;
	height: 1px;
	margin: -1px;
	padding: 0;
	overflow: hidden;
	clip: rect(0 0 0 0);
	white-space: nowrap;
	border: 0;
}

.skip-link {
	position: absolute;
	left: -9999px;
	z-index: 999;
	padding: 12px 18px;
	background: var(--rs-ink);
	color: #fff;
	text-decoration: none;
}

.skip-link:focus {
	left: 8px;
	top: 8px;
	color: #fff;
}

.rs-wrap {
	width: 100%;
	max-width: var(--rs-wrap);
	margin: 0 auto;
	padding: 0 var(--rs-gutter);
}

.rs-mono {
	font-family: var(--rs-mono);
	font-size: 0.875em;
	letter-spacing: 0.01em;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.rs-button,
.woocommerce a.button,
.woocommerce button.button,
.woocommerce input.button,
.woocommerce #respond input#submit,
.woocommerce a.button.alt,
.woocommerce button.button.alt {
	display: inline-block;
	padding: 11px 20px;
	border: 1px solid var(--rs-accent);
	border-radius: var(--rs-radius);
	background: var(--rs-accent);
	color: var(--rs-accent-ink);
	font-family: var(--rs-sans);
	font-size: 0.9375rem;
	font-weight: 500;
	line-height: 1.2;
	text-align: center;
	text-decoration: none;
	cursor: pointer;
	transition: background-color 0.15s ease, border-color 0.15s ease;
}

.rs-button:hover,
.woocommerce a.button:hover,
.woocommerce button.button:hover,
.woocommerce input.button:hover,
.woocommerce a.button.alt:hover,
.woocommerce button.button.alt:hover {
	border-color: var(--rs-accent-dark);
	background: var(--rs-accent-dark);
	color: var(--rs-accent-ink);
}

.rs-button--quiet,
.woocommerce a.button.rs-button--quiet {
	border-color: var(--rs-line-strong);
	background: transparent;
	color: var(--rs-ink);
}

.rs-button--quiet:hover {
	border-color: var(--rs-ink);
	background: transparent;
	color: var(--rs-ink);
}

/* ==========================================================================
   Research-use notice
   ========================================================================== */

.rs-notice {
	padding: 10px 14px;
	border: 1px solid var(--rs-notice-line);
	border-radius: var(--rs-radius);
	background: var(--rs-notice-bg);
	color: var(--rs-notice-ink);
	font-size: 0.8125rem;
	line-height: 1.5;
}

.rs-notice strong {
	font-weight: 600;
}

.rs-notice--bar {
	padding: 7px 0;
	border: 0;
	border-bottom: 1px solid var(--rs-notice-line);
	border-radius: 0;
	text-align: center;
}

.rs-notice--product {
	margin: 18px 0;
}

/* ==========================================================================
   Header
   ========================================================================== */

.rs-header {
	border-bottom: 1px solid var(--rs-line);
	background: var(--rs-bg);
}

.rs-header__inner {
	display: flex;
	align-items: center;
	gap: 24px;
	min-height: 72px;
	padding-top: 12px;
	padding-bottom: 12px;
}

.rs-brand {
	display: flex;
	align-items: baseline;
	gap: 10px;
	margin-right: auto;
	text-decoration: none;
	color: var(--rs-ink);
}

.rs-brand:hover {
	color: var(--rs-ink);
}

.rs-brand__name {
	font-size: 1.0625rem;
	font-weight: 600;
	letter-spacing: -0.01em;
}

.rs-brand__tag {
	color: var(--rs-muted);
	font-size: 0.75rem;
	letter-spacing: 0.04em;
	text-transform: uppercase;
}

.rs-nav ul {
	display: flex;
	gap: 22px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.rs-nav a {
	color: var(--rs-ink);
	font-size: 0.9375rem;
	text-decoration: none;
}

.rs-nav a:hover,
.rs-nav .current-menu-item > a {
	color: var(--rs-accent);
	text-decoration: underline;
}

.rs-header__actions {
	display: flex;
	align-items: center;
	gap: 16px;
}

.rs-cart {
	display: inline-flex;
	align-items: baseline;
	gap: 6px;
	color: var(--rs-ink);
	font-size: 0.9375rem;
	text-decoration: none;
	white-space: nowrap;
}

.rs-cart__count {
	padding: 1px 7px;
	border-radius: 999px;
	background: var(--rs-accent);
	color: #fff;
	font-size: 0.75rem;
	font-variant-numeric: tabular-nums;
}

.rs-menu-toggle {
	display: none;
	padding: 8px 12px;
	border: 1px solid var(--rs-line-strong);
	border-radius: var(--rs-radius);
	background: transparent;
	color: var(--rs-ink);
	font-family: inherit;
	font-size: 0.875rem;
	cursor: pointer;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.rs-hero {
	padding: 64px 0 56px;
	border-bottom: 1px solid var(--rs-line);
}

.rs-hero__inner {
	max-width: 760px;
}

.rs-hero__eyebrow {
	margin: 0 0 14px;
	color: var(--rs-muted);
	font-family: var(--rs-mono);
	font-size: 0.75rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.rs-hero h1 {
	margin: 0 0 16px;
	font-size: clamp(1.875rem, 1.3rem + 2vw, 2.75rem);
}

.rs-hero__lede {
	max-width: 62ch;
	margin: 0 0 28px;
	color: var(--rs-muted);
	font-size: 1.0625rem;
}

.rs-hero__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
}

/* ==========================================================================
   Sections
   ========================================================================== */

.rs-section {
	padding: 56px 0;
}

.rs-section--tint {
	background: var(--rs-surface);
	border-top: 1px solid var(--rs-line);
	border-bottom: 1px solid var(--rs-line);
}

.rs-section__head {
	max-width: 62ch;
	margin-bottom: 32px;
}

.rs-section__head h2 {
	margin: 0 0 8px;
}

.rs-section__head p {
	margin: 0;
	color: var(--rs-muted);
}

/* Ordering steps */

.rs-steps {
	display: grid;
	gap: 20px;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
	margin: 0;
	padding: 0;
	list-style: none;
	counter-reset: rs-step;
}

.rs-step {
	padding: 22px;
	border: 1px solid var(--rs-line);
	border-radius: var(--rs-radius);
	background: var(--rs-bg);
}

.rs-step__n {
	display: block;
	margin-bottom: 10px;
	color: var(--rs-accent);
	font-family: var(--rs-mono);
	font-size: 0.75rem;
	letter-spacing: 0.08em;
}

.rs-step h3 {
	margin: 0 0 6px;
	font-size: 1rem;
}

.rs-step p {
	margin: 0;
	color: var(--rs-muted);
	font-size: 0.9375rem;
}

/* Documentation band */

.rs-docs {
	display: grid;
	gap: 28px;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
}

.rs-doc h3 {
	margin: 0 0 6px;
	font-size: 1rem;
}

.rs-doc p {
	margin: 0;
	color: var(--rs-muted);
	font-size: 0.9375rem;
}

.rs-doc__label {
	display: block;
	margin-bottom: 10px;
	padding-bottom: 10px;
	border-bottom: 1px solid var(--rs-line-strong);
	color: var(--rs-muted);
	font-family: var(--rs-mono);
	font-size: 0.6875rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

/* ==========================================================================
   Product grid
   ========================================================================== */

.woocommerce ul.products,
.rs-products {
	display: grid !important;
	gap: 20px;
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 232px), 1fr));
	margin: 0;
	padding: 0;
	list-style: none;
}

.woocommerce ul.products::before,
.woocommerce ul.products::after {
	content: none;
}

.woocommerce ul.products li.product,
.rs-products li {
	width: auto !important;
	margin: 0 !important;
	padding: 0;
	float: none !important;
	display: flex;
	flex-direction: column;
	border: 1px solid var(--rs-line);
	border-radius: var(--rs-radius);
	background: var(--rs-bg);
	overflow: hidden;
	transition: border-color 0.15s ease;
}

.woocommerce ul.products li.product:hover {
	border-color: var(--rs-line-strong);
}

.woocommerce ul.products li.product a img {
	display: block;
	width: 100%;
	margin: 0;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	background: var(--rs-surface-2);
	border-bottom: 1px solid var(--rs-line);
}

.woocommerce ul.products li.product .rs-card__body {
	display: flex;
	flex-direction: column;
	flex: 1 1 auto;
	padding: 16px;
}

.woocommerce ul.products li.product .woocommerce-loop-product__title {
	margin: 0 0 4px !important;
	padding: 0 !important;
	font-size: 1rem !important;
	font-weight: 600;
	line-height: 1.35;
}

.woocommerce ul.products li.product .woocommerce-loop-product__title a {
	color: var(--rs-ink);
	text-decoration: none;
}

.woocommerce ul.products li.product .woocommerce-loop-product__title a:hover {
	color: var(--rs-accent);
	text-decoration: underline;
}

.rs-card__sku {
	margin-bottom: 10px;
	color: var(--rs-muted);
	font-family: var(--rs-mono);
	font-size: 0.75rem;
	letter-spacing: 0.04em;
}

.woocommerce ul.products li.product .price {
	display: block;
	margin: 0 0 14px !important;
	color: var(--rs-ink) !important;
	font-size: 1rem !important;
	font-weight: 600;
	font-variant-numeric: tabular-nums;
}

.woocommerce ul.products li.product .price del {
	color: var(--rs-muted) !important;
	font-weight: 400;
}

.woocommerce ul.products li.product .button {
	margin-top: auto;
	width: 100%;
}

.woocommerce ul.products li.product .onsale,
.woocommerce span.onsale {
	position: absolute;
	top: 10px;
	left: 10px;
	min-height: 0;
	min-width: 0;
	margin: 0;
	padding: 3px 9px;
	border-radius: var(--rs-radius);
	background: var(--rs-ink);
	color: #fff;
	font-size: 0.6875rem;
	line-height: 1.5;
	font-weight: 500;
}

.woocommerce ul.products li.product {
	position: relative;
}

/* ==========================================================================
   Single product
   ========================================================================== */

/* WooCommerce lays the single product out with floats. Replace that with a
   grid, so the gallery and the summary can be different heights without the
   tabs below them wrapping into the gap. */
.woocommerce div.product {
	display: grid;
	grid-template-columns: minmax(0, 44%) minmax(0, 1fr);
	gap: 40px;
	align-items: start;
	margin-top: 36px;
}

.woocommerce div.product > * {
	min-width: 0;
}

.woocommerce div.product .woocommerce-product-gallery,
.woocommerce div.product div.images,
.woocommerce div.product div.summary {
	width: auto !important;
	margin: 0 !important;
	float: none !important;
}

.woocommerce div.product .woocommerce-product-gallery img {
	border: 1px solid var(--rs-line);
	border-radius: var(--rs-radius);
	background: var(--rs-surface-2);
}

.woocommerce div.product .woocommerce-tabs,
.woocommerce div.product .related,
.woocommerce div.product .up-sells,
.woocommerce div.product .woocommerce-product-details__short-description-full {
	grid-column: 1 / -1;
}

@media (max-width: 860px) {
	.woocommerce div.product {
		grid-template-columns: 1fr;
		gap: 24px;
	}
}

.woocommerce div.product .product_title {
	margin: 0 0 6px;
	font-size: 1.75rem;
}

.rs-product__sku {
	display: block;
	margin-bottom: 18px;
	color: var(--rs-muted);
	font-family: var(--rs-mono);
	font-size: 0.8125rem;
	letter-spacing: 0.04em;
}

.woocommerce div.product p.price,
.woocommerce div.product span.price {
	margin: 0 0 18px;
	color: var(--rs-ink);
	font-size: 1.375rem;
	font-weight: 600;
	font-variant-numeric: tabular-nums;
}

.woocommerce div.product .woocommerce-product-details__short-description {
	max-width: 62ch;
	color: var(--rs-muted);
}

.woocommerce div.product form.cart {
	margin: 22px 0;
	padding: 20px 0;
	border-top: 1px solid var(--rs-line);
	border-bottom: 1px solid var(--rs-line);
}

.woocommerce div.product form.cart .quantity input {
	padding: 10px;
	border: 1px solid var(--rs-line-strong);
	border-radius: var(--rs-radius);
	font-family: var(--rs-mono);
}

/* The specification sheet — the point of the whole page. */
.rs-specs {
	margin: 24px 0;
	border: 1px solid var(--rs-line);
	border-radius: var(--rs-radius);
	overflow: hidden;
}

.rs-specs__head {
	padding: 10px 16px;
	border-bottom: 1px solid var(--rs-line);
	background: var(--rs-surface);
	color: var(--rs-muted);
	font-family: var(--rs-mono);
	font-size: 0.6875rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.rs-specs dl {
	display: grid;
	grid-template-columns: minmax(140px, 32%) 1fr;
	margin: 0;
}

.rs-specs dt,
.rs-specs dd {
	margin: 0;
	padding: 11px 16px;
	border-top: 1px solid var(--rs-line);
	font-size: 0.9375rem;
}

.rs-specs dl > dt:first-of-type,
.rs-specs dl > dt:first-of-type + dd {
	border-top: 0;
}

.rs-specs dt {
	background: var(--rs-surface);
	color: var(--rs-muted);
	font-weight: 500;
}

.rs-specs dd {
	font-family: var(--rs-mono);
	font-size: 0.875rem;
	word-break: break-word;
}

.rs-coa {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-family: var(--rs-sans);
	font-size: 0.9375rem;
}

/* ==========================================================================
   WooCommerce odds and ends
   ========================================================================== */

.woocommerce .woocommerce-message,
.woocommerce .woocommerce-info,
.woocommerce .woocommerce-error {
	margin-bottom: 24px;
	padding: 14px 18px;
	border: 1px solid var(--rs-line);
	border-top-width: 1px;
	border-radius: var(--rs-radius);
	background: var(--rs-surface);
	color: var(--rs-ink);
	font-size: 0.9375rem;
	list-style: none;
}

.woocommerce .woocommerce-error {
	border-color: #e3b7b7;
	background: #fcf3f3;
}

.woocommerce-breadcrumb {
	margin: 24px 0 0 !important;
	color: var(--rs-muted) !important;
	font-size: 0.8125rem !important;
}

.woocommerce table.shop_table {
	border: 1px solid var(--rs-line);
	border-radius: var(--rs-radius);
	border-collapse: separate;
	font-size: 0.9375rem;
}

.woocommerce table.shop_table th {
	font-weight: 600;
}

.woocommerce-tabs ul.tabs {
	display: flex;
	flex-wrap: wrap;
	padding: 0 !important;
	margin: 0 0 20px !important;
	list-style: none !important;
	border-bottom: 1px solid var(--rs-line);
}

.woocommerce-tabs ul.tabs li a {
	text-decoration: none;
}

.woocommerce-tabs ul.tabs::before {
	border: 0 !important;
}

.woocommerce div.product .woocommerce-tabs ul.tabs li {
	margin: 0 4px 0 0 !important;
	padding: 0 !important;
	border: 1px solid var(--rs-line) !important;
	border-bottom: 0 !important;
	border-radius: var(--rs-radius) var(--rs-radius) 0 0 !important;
	background: var(--rs-surface) !important;
}

.woocommerce div.product .woocommerce-tabs ul.tabs li::before,
.woocommerce div.product .woocommerce-tabs ul.tabs li::after {
	content: none !important;
}

.woocommerce div.product .woocommerce-tabs ul.tabs li.active {
	background: var(--rs-bg) !important;
}

.woocommerce div.product .woocommerce-tabs ul.tabs li a {
	padding: 10px 16px !important;
	color: var(--rs-ink) !important;
	font-weight: 500 !important;
}

/* Quantity, forms */

.woocommerce form .form-row input.input-text,
.woocommerce form .form-row textarea,
.woocommerce form .form-row select,
.select2-container .select2-selection--single {
	padding: 11px 12px;
	border: 1px solid var(--rs-line-strong);
	border-radius: var(--rs-radius);
	font-family: var(--rs-sans);
	font-size: 0.9375rem;
}

/* ==========================================================================
   Content pages
   ========================================================================== */

.rs-main {
	padding: 40px 0 64px;
}

.rs-entry {
	max-width: 72ch;
}

.rs-entry__title {
	margin-bottom: 20px;
}

.rs-entry h2 { margin-top: 1.6em; }
.rs-entry h3 { margin-top: 1.4em; }

.rs-entry ul,
.rs-entry ol {
	margin: 0 0 1em;
	padding-left: 1.3em;
}

.rs-entry li { margin-bottom: 0.4em; }

.rs-entry table {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.9375rem;
}

.rs-entry th,
.rs-entry td {
	padding: 10px 12px;
	border: 1px solid var(--rs-line);
	text-align: left;
}

.rs-entry blockquote {
	margin: 1.5em 0;
	padding: 4px 0 4px 20px;
	border-left: 3px solid var(--rs-line-strong);
	color: var(--rs-muted);
}

.rs-entry code {
	padding: 1px 5px;
	border-radius: 3px;
	background: var(--rs-surface-2);
	font-family: var(--rs-mono);
	font-size: 0.875em;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.rs-footer {
	margin-top: 64px;
	padding: 48px 0 32px;
	border-top: 1px solid var(--rs-line);
	background: var(--rs-surface);
	font-size: 0.9375rem;
}

/* The minimum track width is capped at 100% of the container. Without the
   min(), a four-column minmax adds up to a floor wider than a phone, and the
   whole page — not just the footer — gets a horizontal scrollbar. */
.rs-footer__grid {
	display: grid;
	gap: 32px;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
	margin-bottom: 36px;
}

@media (min-width: 900px) {
	.rs-footer__grid {
		grid-template-columns: minmax(240px, 1.5fr) repeat(3, minmax(140px, 1fr));
	}
}

.rs-footer h2 {
	margin: 0 0 12px;
	color: var(--rs-muted);
	font-family: var(--rs-mono);
	font-size: 0.6875rem;
	font-weight: 500;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.rs-footer ul {
	margin: 0;
	padding: 0;
	list-style: none;
}

.rs-footer li {
	margin-bottom: 7px;
}

.rs-footer a {
	color: var(--rs-ink);
	text-decoration: none;
}

.rs-footer a:hover {
	color: var(--rs-accent);
	text-decoration: underline;
}

.rs-footer__about p {
	max-width: 46ch;
	color: var(--rs-muted);
}

.rs-footer__legal {
	padding-top: 24px;
	border-top: 1px solid var(--rs-line-strong);
	color: var(--rs-muted);
	font-size: 0.8125rem;
}

.rs-footer__legal p {
	max-width: 90ch;
	margin: 0 0 8px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 860px) {
	.rs-menu-toggle {
		display: inline-block;
		order: 3;
	}

	.rs-nav {
		display: none;
		order: 4;
		width: 100%;
	}

	.rs-nav.is-open {
		display: block;
	}

	.rs-nav ul {
		flex-direction: column;
		gap: 0;
		padding: 8px 0 12px;
	}

	.rs-nav li {
		border-top: 1px solid var(--rs-line);
	}

	.rs-nav a {
		display: block;
		padding: 12px 2px;
	}

	.rs-header__inner {
		flex-wrap: wrap;
		gap: 12px;
	}

	.rs-hero {
		padding: 44px 0 40px;
	}

	.rs-section {
		padding: 40px 0;
	}

	.rs-specs dl {
		grid-template-columns: 1fr;
	}

	.rs-specs dt {
		padding-bottom: 2px;
		border-bottom: 0;
		background: var(--rs-bg);
	}

	.rs-specs dd {
		padding-top: 2px;
		border-top: 0;
	}

	.rs-specs dl > dt {
		border-top: 1px solid var(--rs-line);
	}

	.rs-specs dl > dt:first-of-type {
		border-top: 0;
	}
}

@media (max-width: 480px) {
	.woocommerce ul.products,
	.rs-products {
		grid-template-columns: repeat(auto-fill, minmax(min(100%, 160px), 1fr));
		gap: 14px;
	}

	.rs-brand__tag {
		display: none;
	}
}

@media (prefers-reduced-motion: reduce) {
	* {
		transition: none !important;
		animation: none !important;
	}
}

/* Print: a spec sheet someone wants on paper should print like one. */
@media print {
	.rs-header,
	.rs-footer,
	.rs-notice--bar,
	form.cart,
	.rs-hero__actions {
		display: none !important;
	}

	body {
		font-size: 11pt;
	}

	.rs-specs {
		border-color: #000;
	}
}