/* Jewelry ADS — Stage 1 prototype
   Light minimal jewelry showcase. BEM + CSS Grid/Flex.
*/

:root {
	--color-bg: #f7f6f3;
	--color-surface: #ffffff;
	--color-ink: #1a1a1a;
	--color-ink-muted: #6b6b6b;
	--color-line: #e4e2dc;
	--color-line-strong: #cfcbc3;
	--color-accent: #2c2a26;
	--color-accent-hover: #000000;
	--color-free: #3d5a45;
	--font-display: "Cormorant Garamond", Georgia, serif;
	--font-body: "Outfit", "Segoe UI", sans-serif;
	--space-xs: 0.5rem;
	--space-sm: 0.75rem;
	--space-md: 1.25rem;
	--space-lg: 2rem;
	--space-xl: 3.5rem;
	--space-2xl: 5.5rem;
	--radius: 0.125rem;
	--container: 80%;
	--header-h: 4.25rem;
	--shadow-soft: 0 1px 0 rgb(0 0 0 / 0.04);
	--transition: 180ms ease;
}

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

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: var(--font-body);
	font-weight: 400;
	font-size: 1rem;
	line-height: 1.55;
	color: var(--color-ink);
	background:
		radial-gradient(120% 80% at 50% -10%, #ffffff 0%, transparent 55%),
		linear-gradient(180deg, #faf9f6 0%, var(--color-bg) 40%, #f3f1ec 100%);
	min-height: 100vh;
	-webkit-font-smoothing: antialiased;
}

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

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

button,
input,
select {
	font: inherit;
	color: inherit;
}

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

.skip-link:focus,
.screen-reader-text:focus {
	position: fixed;
	top: 0.75rem;
	left: 0.75rem;
	z-index: 1000;
	width: auto;
	height: auto;
	margin: 0;
	padding: 0.75rem 1rem;
	clip: auto;
	background: var(--color-surface);
	border: 1px solid var(--color-line-strong);
}

.container {
	width: var(--container);
	margin-inline: auto;
}

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

.header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgb(247 246 243 / 0.92);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--color-line);
}

.header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-md);
	min-height: var(--header-h);
}

.header__logo {
	display: inline-flex;
	align-items: center;
	gap: 0.65rem;
	flex-shrink: 0;
}

.header__logo-mark {
	display: grid;
	place-items: center;
	width: 2rem;
	height: 2rem;
	border: 1px solid var(--color-ink);
	font-family: var(--font-display);
	font-size: 0.85rem;
	font-weight: 600;
	letter-spacing: 0.04em;
}

.header__logo-text {
	font-family: var(--font-display);
	font-size: 1.35rem;
	font-weight: 600;
	letter-spacing: 0.02em;
}

.header__nav {
	flex: 1;
}

.header__menu {
	display: flex;
	justify-content: center;
	gap: clamp(1rem, 3vw, 2rem);
	margin: 0;
	padding: 0;
	list-style: none;
}

.header__link {
	position: relative;
	font-size: 0.9rem;
	font-weight: 400;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--color-ink-muted);
	transition: color var(--transition);
}

.header__link:hover,
.header__link:focus-visible,
.header__link.is-active {
	color: var(--color-ink);
}

.header__link.is-active::after {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	bottom: -0.35rem;
	height: 1px;
	background: var(--color-ink);
}

.header__actions {
	display: flex;
	align-items: center;
	gap: 0.75rem;
}

.header__search {
	display: none;
}

.header__search-input {
	width: 11rem;
	padding: 0.45rem 0.75rem;
	border: 1px solid var(--color-line);
	border-radius: var(--radius);
	background: var(--color-surface);
	outline: none;
	transition: border-color var(--transition);
}

.header__search-input:focus {
	border-color: var(--color-line-strong);
}

.header__cart {
	position: relative;
	display: grid;
	place-items: center;
	width: 2.5rem;
	height: 2.5rem;
	border: 1px solid transparent;
	transition: border-color var(--transition);
}

.header__cart:hover,
.header__cart:focus-visible {
	border-color: var(--color-line);
}

.header__cart-count {
	position: absolute;
	top: 0.2rem;
	right: 0.15rem;
	min-width: 1rem;
	height: 1rem;
	padding: 0 0.2rem;
	border-radius: 999px;
	background: var(--color-accent);
	color: #fff;
	font-size: 0.65rem;
	line-height: 1rem;
	text-align: center;
}

.header__burger {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 0.35rem;
	width: 2.5rem;
	height: 2.5rem;
	padding: 0;
	border: 0;
	background: transparent;
	cursor: pointer;
}

.header__burger-line {
	display: block;
	width: 1.25rem;
	height: 1px;
	margin-inline: auto;
	background: var(--color-ink);
	transition: transform var(--transition), opacity var(--transition);
}

.header.is-nav-open .header__burger-line:first-child {
	transform: translateY(0.2rem) rotate(45deg);
}

.header.is-nav-open .header__burger-line:last-child {
	transform: translateY(-0.2rem) rotate(-45deg);
}

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

.hero {
	padding: 1.35rem 0 1.15rem;
	border-bottom: 1px solid var(--color-line);
}

.hero__inner {
	max-width: none;
	text-align: left;
}

.hero__title {
	margin: 0 0 0.35rem;
	font-family: var(--font-display);
	font-size: clamp(1.65rem, 2.2vw, 2.25rem);
	font-weight: 500;
	line-height: 1.15;
	letter-spacing: -0.01em;
	white-space: nowrap;
}

.hero__text {
	margin: 0;
	max-width: 42rem;
	font-size: 0.95rem;
	font-weight: 300;
	line-height: 1.45;
	color: var(--color-ink-muted);
}

@media (max-width: 640px) {
	.hero__title {
		white-space: normal;
	}
}

/* Catalog + filters
--------------------------------------------- */

.catalog {
	padding: var(--space-xl) 0 var(--space-2xl);
}

.catalog__head {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: var(--space-md);
	margin-bottom: var(--space-lg);
}

.catalog__title {
	margin: 0;
	font-family: var(--font-display);
	font-size: clamp(1.75rem, 3vw, 2.25rem);
	font-weight: 500;
}

.catalog__count {
	margin: 0;
	font-size: 0.85rem;
	color: var(--color-ink-muted);
	letter-spacing: 0.04em;
}

.filters {
	margin-bottom: var(--space-xl);
	border-top: 1px solid var(--color-line);
	border-bottom: 1px solid var(--color-line);
	background: rgb(255 255 255 / 0.55);
}

.filters__toggle {
	display: none;
	align-items: center;
	justify-content: space-between;
	width: 100%;
	padding: 1rem 0;
	border: 0;
	background: transparent;
	cursor: pointer;
	font-size: 0.9rem;
	letter-spacing: 0.06em;
	text-transform: uppercase;
}

.filters__panel {
	padding: 1.15rem 0 1.35rem;
}

.filters__row {
	display: grid;
	grid-template-columns: minmax(0, 2fr) repeat(3, minmax(0, 1fr)) auto;
	gap: 1rem 1.25rem;
	align-items: end;
}

.filters__group {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
	min-width: 0;
}

.filters__label {
	font-size: 0.7rem;
	font-weight: 500;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--color-ink-muted);
}

.filters__chips {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
}

.chip {
	cursor: pointer;
}

.chip__input {
	position: absolute;
	opacity: 0;
	pointer-events: none;
}

.chip__text {
	display: inline-flex;
	align-items: center;
	min-height: 2rem;
	padding: 0 0.8rem;
	border: 1px solid var(--color-line);
	background: var(--color-surface);
	font-size: 0.85rem;
	transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.chip__input:checked + .chip__text,
.chip:hover .chip__text {
	border-color: var(--color-ink);
	background: var(--color-ink);
	color: #fff;
}

.chip__input:focus-visible + .chip__text {
	outline: 2px solid var(--color-ink);
	outline-offset: 2px;
}

.filters__select {
	width: 100%;
	min-height: 2.35rem;
	padding: 0.4rem 0.7rem;
	border: 1px solid var(--color-line);
	border-radius: var(--radius);
	background: var(--color-surface);
	appearance: none;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%231a1a1a' stroke-width='1.3'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 0.7rem center;
	padding-right: 2rem;
}

.filters__actions {
	display: flex;
	gap: 0.5rem;
	align-items: center;
}

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 2.35rem;
	padding: 0 1rem;
	border: 1px solid transparent;
	border-radius: var(--radius);
	cursor: pointer;
	font-size: 0.8rem;
	font-weight: 500;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn--primary {
	background: var(--color-accent);
	color: #fff;
}

.btn--primary:hover,
.btn--primary:focus-visible {
	background: var(--color-accent-hover);
}

.btn--ghost {
	background: transparent;
	border-color: var(--color-line-strong);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
	border-color: var(--color-ink);
}

/* Product grid
--------------------------------------------- */

.catalog__grid {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: clamp(1rem, 2vw, 1.5rem);
}

.catalog__grid:empty {
	display: none;
}

.catalog__empty {
	display: none;
	padding: clamp(3rem, 8vw, 5rem) 1.5rem;
	text-align: center;
	border: 1px dashed var(--color-line-strong);
	background: rgb(255 255 255 / 0.5);
}

.catalog__empty.is-visible,
.catalog__grid:empty + .catalog__empty {
	display: block;
}

.catalog__empty-title {
	margin: 0 0 0.5rem;
	font-family: var(--font-display);
	font-size: 1.75rem;
	font-weight: 500;
}

.catalog__empty-text {
	margin: 0;
	color: var(--color-ink-muted);
}

.product-card {
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	box-shadow: var(--shadow-soft);
	transition: border-color var(--transition), transform var(--transition);
}

.product-card:hover {
	border-color: var(--color-line-strong);
	transform: translateY(-2px);
}

.product-card__link {
	display: flex;
	flex-direction: column;
	height: 100%;
}

.product-card__media {
	position: relative;
	margin: 0;
	aspect-ratio: 1 / 1;
	overflow: hidden;
	background:
		linear-gradient(145deg, #f0eeea 0%, #faf9f7 50%, #ebe8e2 100%);
}

.product-card__image {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.product-card__badge {
	position: absolute;
	top: 0.65rem;
	left: 0.65rem;
	padding: 0.2rem 0.45rem;
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	font-size: 0.65rem;
	font-weight: 500;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--color-free);
}

.product-card__body {
	display: flex;
	flex-direction: column;
	gap: 0.35rem;
	padding: 1rem 1rem 1.15rem;
	flex: 1;
}

.product-card__title {
	margin: 0;
	font-family: var(--font-display);
	font-size: 1.2rem;
	font-weight: 500;
	line-height: 1.25;
}

.product-card__meta {
	margin: 0;
	font-size: 0.8rem;
	color: var(--color-ink-muted);
}

.product-card__price {
	margin: auto 0 0;
	padding-top: 0.5rem;
	font-size: 0.9rem;
	font-weight: 500;
}

/* Info sections
--------------------------------------------- */

.info {
	padding: 0 0 var(--space-2xl);
}

.info__grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 0;
	border-top: 1px solid var(--color-line);
}

.info__block {
	padding: clamp(1.75rem, 4vw, 2.75rem) clamp(1.25rem, 3vw, 2rem);
	border-right: 1px solid var(--color-line);
}

.info__block:last-child {
	border-right: 0;
}

.info__num {
	display: block;
	margin-bottom: 1rem;
	font-size: 0.75rem;
	letter-spacing: 0.14em;
	color: var(--color-ink-muted);
}

.info__title {
	margin: 0 0 0.75rem;
	font-family: var(--font-display);
	font-size: 1.65rem;
	font-weight: 500;
}

.info__text {
	margin: 0;
	max-width: 22rem;
	font-weight: 300;
	color: var(--color-ink-muted);
}

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

.footer {
	border-top: 1px solid var(--color-line);
	background: #f1efe9;
	padding: var(--space-xl) 0 var(--space-lg);
}

.footer__inner {
	display: grid;
	gap: var(--space-lg);
}

.footer__logo {
	display: block;
	margin-bottom: 0.5rem;
	font-family: var(--font-display);
	font-size: 1.5rem;
	font-weight: 600;
}

.footer__tagline {
	margin: 0;
	max-width: 16rem;
	font-size: 0.9rem;
	font-weight: 300;
	color: var(--color-ink-muted);
}

.footer__cols {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: var(--space-lg);
}

.footer__heading {
	display: block;
	margin-bottom: 0.85rem;
	font-size: 0.7rem;
	font-weight: 500;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--color-ink-muted);
}

.footer__list {
	margin: 0;
	padding: 0;
	list-style: none;
}

.footer__list li + li {
	margin-top: 0.45rem;
}

.footer__list a {
	font-size: 0.95rem;
	color: var(--color-ink);
	transition: opacity var(--transition);
}

.footer__list a:hover,
.footer__list a:focus-visible {
	opacity: 0.65;
}

.footer__copy {
	margin: 0;
	padding-top: var(--space-md);
	border-top: 1px solid var(--color-line);
	font-size: 0.8rem;
	color: var(--color-ink-muted);
}

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

@media (min-width: 900px) {
	.header__search {
		display: block;
	}
}

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

	.filters__row {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.filters__group:first-child,
	.filters__actions {
		grid-column: 1 / -1;
	}
}

@media (max-width: 800px) {
	.header__burger {
		display: flex;
	}

	.header__nav {
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		display: none;
		padding: 1rem 1.25rem 1.25rem;
		background: var(--color-bg);
		border-bottom: 1px solid var(--color-line);
	}

	.header.is-nav-open .header__nav {
		display: block;
	}

	.header__menu {
		flex-direction: column;
		align-items: flex-start;
		gap: 1rem;
	}

	.catalog__grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.info__grid {
		grid-template-columns: 1fr;
	}

	.info__block {
		border-right: 0;
		border-bottom: 1px solid var(--color-line);
	}

	.info__block:last-child {
		border-bottom: 0;
	}

	.footer__cols {
		grid-template-columns: 1fr 1fr;
	}
}

@media (max-width: 560px) {
	.filters__toggle {
		display: flex;
	}

	.filters__panel {
		display: none;
		padding-top: 0;
	}

	.filters.is-open .filters__panel {
		display: block;
	}

	.filters__row {
		grid-template-columns: 1fr;
	}

	.catalog__grid {
		grid-template-columns: 1fr;
	}

	.footer__cols {
		grid-template-columns: 1fr;
	}
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	*,
	*::before,
	*::after {
		transition: none !important;
	}
}