/* ==========================================================================
   Barrier Labs — Design System
   Plain CSS + tokens. No Tailwind. Presentation layer only.
   ========================================================================== */

:root {
	/* Color */
	--color-background: #f7f7f5;
	--color-text: #111111;
	--color-muted: #70706b;
	--color-border: #deded9;
	--color-card: #ffffff;
	--color-dark: #111111;
	--color-light-text: #f5f5f2;
	--color-dark-muted: #858580;

	/* Radius */
	--radius-sm: 4px;
	--radius-md: 8px;

	/* Spacing scale */
	--space-1: 4px;
	--space-2: 8px;
	--space-3: 12px;
	--space-4: 16px;
	--space-5: 24px;
	--space-6: 32px;
	--space-7: 48px;
	--space-8: 64px;
	--space-9: 96px;
	--space-10: 128px;

	/* Layout */
	--header-height: 80px;
	--page-gutter: clamp(20px, 4vw, 48px);
	--content-max: 1440px;
	--wide-max: 1760px;

	/* Type */
	--font-sans: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;

	/* Motion */
	--ease: cubic-bezier(0.22, 0.61, 0.36, 1);
	--dur-micro: 220ms;
	--dur-entrance: 560ms;
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

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

html {
	-webkit-text-size-adjust: 100%;
}

body {
	margin: 0;
	background-color: var(--color-background);
	color: var(--color-text);
	font-family: var(--font-sans);
	font-size: 16px;
	line-height: 1.55;
	letter-spacing: -0.01em;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	font-feature-settings: "ss01", "cv05";
}

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

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

h1, h2, h3, h4, h5, h6 {
	font-weight: 500;
	letter-spacing: -0.04em;
	line-height: 1;
	margin: 0;
	text-wrap: balance;
}

p {
	text-wrap: pretty;
}

.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

:where(a, button, input, [tabindex]):focus-visible {
	outline: 2px solid var(--color-text);
	outline-offset: 3px;
	border-radius: 2px;
}

/* Layout width helpers used by templates */
.site-main {
	padding-top: var(--space-8);
	padding-bottom: var(--space-10);
}

.section {
	margin-top: var(--space-9);
	margin-bottom: var(--space-9);
}

.section:first-child {
	margin-top: 0;
}

.section__eyebrow,
.hero__eyebrow {
	font-size: 11px;
	font-weight: 500;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--color-muted);
	margin: 0 0 var(--space-4);
}

.section__title {
	font-size: clamp(32px, 5vw, 64px);
	letter-spacing: -0.045em;
	margin: 0;
}

.section__head {
	margin-bottom: var(--space-7);
	max-width: 720px;
}

/* --------------------------------------------------------------------------
   Promotional bar
   -------------------------------------------------------------------------- */

.promo-bar {
	min-height: 36px;
	background-color: var(--color-dark);
	color: var(--color-light-text);
	display: flex;
	align-items: center;
	justify-content: center;
}

.promo-bar__text {
	margin: 0;
	font-size: 11.5px;
	font-weight: 500;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	text-align: center;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header-wrap {
	position: sticky;
	top: 0;
	z-index: 100;
	background-color: color-mix(in srgb, var(--color-background) 88%, transparent);
	-webkit-backdrop-filter: saturate(140%) blur(10px);
	backdrop-filter: saturate(140%) blur(10px);
	border-bottom: 1px solid var(--color-border);
}

.site-header {
	min-height: var(--header-height);
	padding-left: var(--page-gutter);
	padding-right: var(--page-gutter);
	display: flex;
	align-items: center;
	gap: var(--space-6);
}

.site-header__brand a,
.site-header__brand {
	font-size: 17px;
	font-weight: 600;
	letter-spacing: -0.03em;
	text-transform: none;
}

.site-header__nav {
	flex: 1;
}

.site-header__nav a {
	font-size: 13.5px;
	font-weight: 500;
	letter-spacing: 0;
	color: var(--color-text);
	position: relative;
	padding-bottom: 2px;
}

.site-header__nav a::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: 0;
	width: 100%;
	height: 1px;
	background-color: currentColor;
	transform: scaleX(0);
	transform-origin: left;
	transition: transform var(--dur-micro) var(--ease);
}

.site-header__nav a:hover::after {
	transform: scaleX(1);
}

.site-header__actions {
	display: flex;
	align-items: center;
	gap: var(--space-4);
}

.site-header__search .wp-block-search__button,
.site-header__search button {
	background: transparent;
	border: none;
	color: var(--color-text);
	padding: 6px;
	cursor: pointer;
}

.site-header .wc-block-mini-cart__button,
.site-header__cart button {
	background: transparent;
	border: none;
	color: var(--color-text);
	cursor: pointer;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
	padding-top: var(--space-8);
	padding-bottom: var(--space-8);
	border-bottom: 1px solid var(--color-border);
}

.hero__inner {
	max-width: 1100px;
}

.hero__title {
	font-size: clamp(44px, 9vw, 132px);
	line-height: 0.92;
	letter-spacing: -0.05em;
	margin: 0 0 var(--space-5);
	max-width: 14ch;
}

.hero__description {
	font-size: 17px;
	line-height: 1.55;
	color: var(--color-muted);
	max-width: 520px;
	margin: 0 0 var(--space-6);
}

.hero__actions {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-3);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.button,
.wp-block-button__link,
.wp-element-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 46px;
	padding: 0 26px;
	font-size: 13px;
	font-weight: 500;
	letter-spacing: 0.01em;
	line-height: 1;
	border-radius: var(--radius-sm);
	border: 1px solid var(--color-dark);
	background-color: var(--color-dark);
	color: var(--color-light-text);
	cursor: pointer;
	transition: background-color var(--dur-micro) var(--ease),
		color var(--dur-micro) var(--ease);
}

.button:hover,
.wp-block-button__link:hover,
.wp-element-button:hover {
	background-color: transparent;
	color: var(--color-text);
}

.is-style-outline .wp-block-button__link,
.button--ghost {
	background-color: transparent;
	color: var(--color-text);
	border-color: var(--color-border);
}

.is-style-outline .wp-block-button__link:hover,
.button--ghost:hover {
	background-color: var(--color-dark);
	color: var(--color-light-text);
	border-color: var(--color-dark);
}

/* --------------------------------------------------------------------------
   Catalog toolbar + filters + search
   -------------------------------------------------------------------------- */

.catalog {
	margin-top: var(--space-6);
}

.catalog__toolbar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-4);
	padding-bottom: var(--space-4);
	margin-bottom: var(--space-6);
	border-bottom: 1px solid var(--color-border);
	flex-wrap: wrap;
}

.catalog__meta {
	display: flex;
	align-items: baseline;
	gap: 6px;
}

.catalog__count {
	font-size: 13px;
	font-weight: 600;
	letter-spacing: 0;
}

.catalog__count-label {
	font-size: 11px;
	font-weight: 500;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--color-muted);
}

.product-search {
	position: relative;
	width: min(320px, 100%);
}

.product-search__input {
	width: 100%;
	height: 42px;
	padding: 0 var(--space-4);
	font-family: inherit;
	font-size: 14px;
	color: var(--color-text);
	background-color: var(--color-card);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	transition: border-color var(--dur-micro) var(--ease);
}

.product-search__input::placeholder {
	color: var(--color-muted);
}

.product-search__input:focus {
	outline: none;
	border-color: var(--color-text);
}

.category-filter {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-2);
	margin-bottom: var(--space-6);
}

.category-filter__pill {
	appearance: none;
	font-family: inherit;
	font-size: 12.5px;
	font-weight: 500;
	letter-spacing: 0.01em;
	padding: 8px 16px;
	border-radius: 999px;
	border: 1px solid var(--color-border);
	background-color: transparent;
	color: var(--color-muted);
	cursor: pointer;
	transition: background-color var(--dur-micro) var(--ease),
		color var(--dur-micro) var(--ease),
		border-color var(--dur-micro) var(--ease);
}

.category-filter__pill:hover {
	border-color: var(--color-text);
	color: var(--color-text);
}

.category-filter__pill.is-active {
	background-color: var(--color-dark);
	color: var(--color-light-text);
	border-color: var(--color-dark);
}

/* --------------------------------------------------------------------------
   Product grid + cards
   -------------------------------------------------------------------------- */

.product-grid,
.product-grid-wc .wp-block-post-template {
	display: grid;
	grid-template-columns: repeat(var(--catalog-columns, 4), minmax(0, 1fr));
	gap: 18px;
	list-style: none;
	margin: 0;
	padding: 0;
}

.product-card {
	position: relative;
	display: flex;
	flex-direction: column;
	background-color: var(--color-card);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	overflow: hidden;
	transition: border-color var(--dur-micro) var(--ease);
}

.product-card:hover {
	border-color: color-mix(in srgb, var(--color-text) 30%, var(--color-border));
}

.product-card[hidden] {
	display: none !important;
}

.product-card__link {
	display: flex;
	flex-direction: column;
	flex: 1;
}

.product-card__image {
	position: relative;
	aspect-ratio: 1 / 1;
	overflow: hidden;
	background-color: color-mix(in srgb, var(--color-background) 70%, var(--color-card));
	border-bottom: 1px solid var(--color-border);
}

.product-card__image img,
.product-card__img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 480ms var(--ease);
}

.product-card:hover .product-card__image img,
.product-card:hover .product-card__img {
	transform: scale(1.03);
}

.product-card__content {
	display: flex;
	flex-direction: column;
	gap: 6px;
	padding: var(--space-4);
	flex: 1;
}

.product-card__category {
	font-size: 10.5px;
	font-weight: 500;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--color-muted);
}

.product-card__category a {
	color: inherit;
}

.product-card__title {
	font-size: 16px;
	font-weight: 500;
	letter-spacing: -0.02em;
	line-height: 1.2;
	margin: 0;
}

.product-card__price {
	margin-top: auto;
	padding-top: var(--space-2);
	font-size: 14px;
	font-weight: 500;
	letter-spacing: 0;
	color: var(--color-text);
}

.product-card__price del {
	color: var(--color-muted);
	margin-right: 6px;
	font-weight: 400;
}

.product-card__actions {
	padding: 0 var(--space-4) var(--space-4);
}

.product-card__add {
	width: 100%;
}

.catalog__empty {
	grid-column: 1 / -1;
	padding: var(--space-8) 0;
	text-align: center;
	color: var(--color-muted);
	font-size: 14px;
}

/* --------------------------------------------------------------------------
   Proof / science section
   -------------------------------------------------------------------------- */

.proof__cols {
	gap: var(--space-6);
	border-top: 1px solid var(--color-border);
	padding-top: var(--space-7);
}

.proof__col {
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
}

.proof__index {
	font-size: 12px;
	font-weight: 500;
	letter-spacing: 0.1em;
	color: var(--color-muted);
	margin: 0;
}

.proof__title {
	font-size: 22px;
	letter-spacing: -0.03em;
	margin: 0;
}

.proof__text {
	font-size: 15px;
	line-height: 1.6;
	color: var(--color-muted);
	margin: 0;
}

/* --------------------------------------------------------------------------
   Blog / archive post grid
   -------------------------------------------------------------------------- */

.page-head {
	margin-bottom: var(--space-7);
}

.page-head__title,
.post-head__title {
	font-size: clamp(40px, 7vw, 96px);
	line-height: 0.95;
	letter-spacing: -0.05em;
}

.post-grid__items {
	gap: var(--space-6) !important;
}

.post-card__image img {
	border-radius: var(--radius-md);
	transition: opacity var(--dur-micro) var(--ease);
}

.post-card__image:hover img {
	opacity: 0.9;
}

.post-card__category {
	font-size: 10.5px;
	font-weight: 500;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--color-muted);
	margin-top: var(--space-3);
}

.post-card__title {
	font-size: 20px;
	letter-spacing: -0.03em;
	margin: 6px 0;
}

.post-card__excerpt {
	font-size: 14px;
	line-height: 1.6;
	color: var(--color-muted);
}

.pagination {
	margin-top: var(--space-8);
	padding-top: var(--space-5);
	border-top: 1px solid var(--color-border);
	font-size: 13px;
}

/* --------------------------------------------------------------------------
   Single product
   -------------------------------------------------------------------------- */

.product-breadcrumbs {
	font-size: 12px;
	color: var(--color-muted);
	margin-bottom: var(--space-5);
}

.product-layout {
	gap: var(--space-8) !important;
	margin-bottom: var(--space-9);
}

.product-summary__title {
	font-size: clamp(30px, 4vw, 52px);
	letter-spacing: -0.04em;
	margin: var(--space-3) 0 var(--space-4);
}

.product-summary__price {
	font-size: 22px;
	font-weight: 500;
	margin-bottom: var(--space-4);
}

.product-summary__excerpt {
	font-size: 16px;
	line-height: 1.6;
	color: var(--color-muted);
	margin-bottom: var(--space-5);
}

.product-details {
	border-top: 1px solid var(--color-border);
	padding-top: var(--space-7);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
	background-color: var(--color-dark);
	color: var(--color-light-text);
	margin-top: var(--space-10);
	padding: var(--space-9) var(--page-gutter) var(--space-7);
}

.site-footer__top {
	gap: var(--space-8);
	padding-bottom: var(--space-8);
	border-bottom: 1px solid color-mix(in srgb, var(--color-light-text) 14%, transparent);
	margin-bottom: var(--space-5);
	align-items: flex-start;
}

.site-footer__brand {
	max-width: 340px;
}

.site-footer__title,
.site-footer__title a {
	font-size: 20px;
	font-weight: 600;
	letter-spacing: -0.03em;
	color: var(--color-light-text);
}

.site-footer__tagline {
	margin-top: var(--space-3);
	font-size: 14px;
	line-height: 1.6;
	color: var(--color-dark-muted);
}

.site-footer__cols {
	gap: var(--space-9) !important;
}

.site-footer__heading {
	font-size: 11px;
	font-weight: 500;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--color-dark-muted);
	margin: 0 0 var(--space-4);
}

.site-footer__list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
}

.site-footer__list a {
	font-size: 14px;
	color: var(--color-light-text);
	transition: color var(--dur-micro) var(--ease);
}

.site-footer__list a:hover {
	color: var(--color-dark-muted);
}

.site-footer__bottom {
	gap: var(--space-4);
	padding-top: var(--space-4);
}

.site-footer__copy {
	font-size: 12px;
	color: var(--color-dark-muted);
	margin: 0;
}

.site-footer__note {
	font-size: 11px;
	line-height: 1.5;
	color: var(--color-dark-muted);
	margin: 0;
	max-width: 560px;
}

/* --------------------------------------------------------------------------
   Motion — scroll reveal
   -------------------------------------------------------------------------- */

[data-reveal] {
	opacity: 0;
	transform: translateY(16px);
	transition: opacity var(--dur-entrance) var(--ease),
		transform var(--dur-entrance) var(--ease);
	will-change: opacity, transform;
}

[data-reveal].is-visible {
	opacity: 1;
	transform: none;
}

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

@media (max-width: 1100px) {
	.product-grid,
	.product-grid-wc .wp-block-post-template {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}
}

@media (max-width: 782px) {
	.site-main {
		padding-top: var(--space-6);
	}

	.section {
		margin-top: var(--space-8);
		margin-bottom: var(--space-8);
	}

	.product-grid,
	.product-grid-wc .wp-block-post-template {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: var(--space-3);
	}

	.catalog__toolbar {
		flex-direction: column;
		align-items: stretch;
	}

	.product-search {
		width: 100%;
	}

	.product-layout {
		flex-direction: column;
	}

	.site-footer__top {
		flex-direction: column;
		gap: var(--space-7);
	}

	.site-footer__cols {
		gap: var(--space-7) !important;
		row-gap: var(--space-7) !important;
	}
}

@media (max-width: 480px) {
	.product-grid,
	.product-grid-wc .wp-block-post-template {
		grid-template-columns: repeat(1, minmax(0, 1fr));
	}
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.001ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.001ms !important;
		scroll-behavior: auto !important;
	}

	[data-reveal] {
		opacity: 1;
		transform: none;
	}

	.product-card:hover .product-card__image img {
		transform: none;
	}
}