:root {
	--bg: #f6f2eb;
	--bg-elevated: #fffaf4;
	--panel: #fffefc;
	--panel-strong: #f2ece3;
	--text: #171312;
	--text-muted: #66584d;
	--border: rgba(23, 19, 18, 0.12);
	--accent: #d4551f;
	--accent-strong: #8b2f15;
	--accent-soft: rgba(212, 85, 31, 0.14);
	--shadow-sm: 0 10px 24px rgba(36, 25, 20, 0.08);
	--shadow-md: 0 18px 44px rgba(36, 25, 20, 0.11);
	--radius-xl: 28px;
	--radius-lg: 20px;
	--radius-md: 14px;
	--radius-pill: 999px;
}

html[data-theme="dark"] {
	--bg: #111315;
	--bg-elevated: #171a1d;
	--panel: #1b1f23;
	--panel-strong: #242a30;
	--text: #f2ece6;
	--text-muted: #b8a99c;
	--border: rgba(255, 237, 223, 0.12);
	--accent: #ff8a4c;
	--accent-strong: #ffb27c;
	--accent-soft: rgba(255, 138, 76, 0.2);
	--shadow-sm: 0 10px 24px rgba(0, 0, 0, 0.28);
	--shadow-md: 0 18px 44px rgba(0, 0, 0, 0.34);
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: "Segoe UI", "Trebuchet MS", "Helvetica Neue", sans-serif;
	background:
		radial-gradient(
			circle at 85% -10%,
			rgba(255, 175, 124, 0.2),
			transparent 36%
		),
		radial-gradient(circle at 12% 0%, rgba(212, 85, 31, 0.1), transparent 32%),
		linear-gradient(145deg, var(--bg-elevated), var(--bg));
	color: var(--text);
	line-height: 1.6;
	min-height: 100vh;
	position: relative;
	overflow-x: hidden;
}

body::before,
body::after {
	content: "";
	position: fixed;
	pointer-events: none;
	z-index: -2;
	border-radius: 50%;
	filter: blur(8px);
}

body::before {
	width: 34vw;
	height: 34vw;
	min-width: 280px;
	min-height: 280px;
	left: -10vw;
	top: 42vh;
	background: rgba(212, 85, 31, 0.1);
}

body::after {
	width: 30vw;
	height: 30vw;
	min-width: 260px;
	min-height: 260px;
	right: -9vw;
	top: 8vh;
	background: rgba(255, 167, 84, 0.15);
}

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

a:focus-visible,
button:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 3px;
}

.site-header,
main,
.site-footer {
	max-width: 1240px;
	margin-left: auto;
	margin-right: auto;
	padding-left: clamp(1rem, 3.2vw, 2.6rem);
	padding-right: clamp(1rem, 3.2vw, 2.6rem);
}

.site-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 1.4rem;
	padding-top: 1.3rem;
	padding-bottom: 1rem;
	position: sticky;
	top: 0;
	z-index: 40;
	backdrop-filter: blur(12px);
	background: color-mix(in oklab, var(--bg-elevated) 76%, transparent);
	border-bottom: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
}

.brand {
	display: flex;
	align-items: center;
	gap: 0.85rem;
	min-width: max-content;
	order: 1;
}

.brand-logo {
	width: 52px;
	height: 52px;
	border-radius: 12px;
	object-fit: contain;
	background: var(--panel-strong);
	padding: 0.35rem;
	border: 1px solid var(--border);
	box-shadow: var(--shadow-sm);
}

.brand-text h1 {
	margin: 0;
	font-size: 1.25rem;
	letter-spacing: -0.02em;
}

.brand-text p {
	margin: 0.15rem 0 0;
	font-size: 0.85rem;
	color: var(--text-muted);
}

.site-nav {
	display: flex;
	align-items: center;
	gap: 0.35rem;
	padding: 0.35rem;
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: var(--radius-pill);
	box-shadow: var(--shadow-sm);
	flex-wrap: wrap;
	justify-content: center;
	order: 2;
	margin-left: auto;
}

.header-controls {
	display: flex;
	align-items: center;
	gap: 0.55rem;
	order: 3;
	flex-shrink: 0;
}

.site-nav a {
	padding: 0.42rem 0.85rem;
	font-size: 0.92rem;
	font-weight: 700;
	color: var(--text-muted);
	border-radius: var(--radius-pill);
	transition: all 0.2s ease;
}

.site-nav a:hover,
.site-nav a.active {
	background: var(--accent-soft);
	color: var(--text);
}

.nav-toggle {
	display: none;
	align-items: center;
	justify-content: center;
	flex-direction: column;
	gap: 4px;
	width: 42px;
	height: 42px;
	padding: 0;
	border-radius: 12px;
	border: 1px solid var(--border);
	background: var(--panel);
	cursor: pointer;
}

.nav-toggle span {
	display: block;
	width: 18px;
	height: 2px;
	border-radius: 999px;
	background: var(--text);
}

.lang-toggle,
.theme-toggle {
	border: 1px solid var(--border);
	background: var(--panel-strong);
	color: var(--text);
	cursor: pointer;
}

.lang-toggle {
	width: 3.15rem;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 0.45rem 0.75rem;
	border-radius: var(--radius-pill);
	font-size: 0.72rem;
	font-weight: 800;
	letter-spacing: 0.16em;
	text-transform: uppercase;
}

.theme-toggle {
	width: 37px;
	height: 37px;
	border-radius: 50%;
	text-indent: -9999px;
	position: relative;
	overflow: hidden;
}

.theme-toggle::before {
	content: "";
	position: absolute;
	inset: 0;
	margin: auto;
	width: 14px;
	height: 14px;
	border-radius: 50%;
	background: var(--text);
}

main {
	padding-top: clamp(1.7rem, 4.5vw, 4rem);
	padding-bottom: 4rem;
}

.page-hero {
	display: grid;
	gap: 0.45rem;
	padding-bottom: 1.35rem;
	border-bottom: 1px solid var(--border);
}

.page-hero h2 {
	margin: 0;
	font-size: clamp(1.85rem, 4vw, 2.65rem);
	line-height: 1.12;
}

.page-hero p {
	margin: 0;
	max-width: 62ch;
	color: var(--text-muted);
}

.hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-top: 1rem;
}

.button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 0.82rem 1.36rem;
	font-weight: 800;
	font-size: 0.92rem;
	border-radius: 12px;
	border: 1px solid transparent;
	transition: all 0.2s ease;
}

.button.primary,
.button:not(.ghost) {
	background: linear-gradient(135deg, var(--accent), var(--accent-strong));
	color: #fff;
}

.blog-list {
	margin-top: 1.8rem;
}

.panel {
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-sm);
}

.product-detail {
	padding: 1.35rem;
	display: grid;
	gap: 1rem;
}

.product-slider {
	position: relative;
	max-width: 820px;
	margin: 0 auto;
}

.product-slides {
	display: block;
	overflow: hidden;
	border-radius: var(--radius-md);
}

.product-main-image {
	margin: 0;
	border-radius: var(--radius-md);
	border: 1px solid color-mix(in oklab, var(--accent) 24%, var(--border));
	aspect-ratio: 5 / 4;
	background: var(--panel-strong);
}

.product-main-image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center;
}

.product-main-image img.slide-in-from-right {
	animation: product-slide-in-right 0.48s ease;
}

.product-main-image img.slide-in-from-left {
	animation: product-slide-in-left 0.48s ease;
}

.slider-arrow {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	z-index: 2;
	width: 44px;
	height: 44px;
	border-radius: 50%;
	border: 1px solid color-mix(in oklab, var(--accent) 32%, var(--border));
	background: color-mix(in oklab, var(--panel) 86%, transparent);
	color: var(--text);
	font-size: 1.8rem;
	line-height: 1;
	cursor: pointer;
	box-shadow: var(--shadow-sm);
}

.slider-arrow-prev {
	left: 0.7rem;
}

.slider-arrow-next {
	right: 0.7rem;
}

.product-thumbnails {
	margin-top: 0.8rem;
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 0.5rem;
}

.product-thumbnail {
	flex: 0 1 clamp(96px, 18%, 140px);
	padding: 0;
	aspect-ratio: 5 / 4;
	border-radius: 10px;
	border: 1px solid color-mix(in oklab, var(--border) 85%, transparent);
	background: var(--panel-strong);
	cursor: pointer;
	overflow: hidden;
	box-shadow: var(--shadow-sm);
	transition:
		transform 0.2s ease,
		border-color 0.2s ease,
		box-shadow 0.2s ease;
}

.product-thumbnail:hover {
	transform: translateY(-2px);
	border-color: color-mix(in oklab, var(--accent) 56%, var(--border));
}

.product-thumbnail.is-active {
	border-color: var(--accent);
	box-shadow: 0 0 0 2px color-mix(in oklab, var(--accent) 30%, transparent);
}

.product-thumbnail img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.product-note {
	margin: 0;
	color: var(--text-muted);
}

.price-table-wrap {
	overflow-x: auto;
	background: var(--panel-strong);
	border: 1px solid var(--border);
	border-radius: var(--radius-md);
}

.price-table {
	width: 100%;
	border-collapse: collapse;
	min-width: 520px;
}

.price-table th,
.price-table td {
	padding: 0.8rem 0.9rem;
	text-align: left;
	border-bottom: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
}

.price-table th {
	font-size: 0.86rem;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--text-muted);
	background: color-mix(in oklab, var(--panel) 88%, transparent);
}

.price-table tbody tr:last-child td {
	border-bottom: 0;
}

.product-minimum {
	margin: 0;
	font-weight: 700;
	color: var(--accent-strong);
}

.price-calc {
	padding: 1rem;
	border: 1px solid var(--border);
	border-radius: var(--radius-md);
	background: color-mix(in oklab, var(--panel) 88%, var(--panel-strong));
	display: grid;
	gap: 0.8rem;
}

.price-calc h3 {
	margin: 0;
	font-size: 1.05rem;
}

.price-calc-controls {
	display: grid;
	grid-template-columns: 1fr auto;
	gap: 0.9rem;
	align-items: end;
}

.price-calc-field {
	display: grid;
	gap: 0.35rem;
	font-weight: 600;
	font-size: 0.9rem;
	color: var(--text-muted);
}

.price-calc-field input {
	height: 42px;
	padding: 0 0.72rem;
	border-radius: 10px;
	border: 1px solid var(--border);
	background: var(--panel);
	color: var(--text);
	font-size: 1rem;
	font-weight: 700;
}

.price-calc-check {
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	min-height: 42px;
	padding: 0 0.75rem;
	border: 1px solid var(--border);
	border-radius: 10px;
	background: var(--panel);
	font-weight: 700;
	color: var(--text);
	cursor: pointer;
	user-select: none;
}

.price-calc-check input {
	width: 16px;
	height: 16px;
	accent-color: var(--accent);
}

.price-calc-result {
	margin: 0;
	font-size: 1.02rem;
	font-weight: 800;
	color: var(--text);
}

.price-calc-help {
	margin: 0;
	font-size: 0.9rem;
	color: var(--text-muted);
}

.site-footer {
	margin-top: 2rem;
	padding-top: 2rem;
	padding-bottom: 2.4rem;
	border-top: 1px solid var(--border);
	color: var(--text-muted);
}

.footer-content {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	gap: 1rem;
}

.footer-section h3,
.footer-section h4 {
	margin: 0 0 0.45rem;
	color: var(--text);
}

.footer-section h4 {
	font-size: 0.92rem;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--text-muted);
}

.footer-section p {
	margin: 0;
	font-size: 0.92rem;
}

.footer-nav {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 0.4rem 0.9rem;
}

.footer-bottom {
	margin-top: 1.2rem;
	padding-top: 1rem;
	border-top: 1px dashed color-mix(in oklab, var(--border) 72%, transparent);
	font-size: 0.86rem;
}

.back-to-top {
	position: fixed;
	right: clamp(0.9rem, 2.4vw, 1.5rem);
	bottom: clamp(0.9rem, 2.4vw, 1.5rem);
	width: 48px;
	height: 48px;
	border: 1px solid color-mix(in oklab, var(--accent) 30%, var(--border));
	border-radius: 50%;
	background: linear-gradient(150deg, var(--accent), var(--accent-strong));
	color: #fff;
	font-weight: 800;
	font-size: 0.76rem;
	cursor: pointer;
	box-shadow: 0 16px 32px rgba(139, 47, 21, 0.28);
	opacity: 0;
	transform: translateY(14px) scale(0.92);
	pointer-events: none;
	transition:
		opacity 0.25s ease,
		transform 0.25s ease;
	z-index: 60;
}

.back-to-top.visible {
	opacity: 1;
	transform: translateY(0) scale(1);
	pointer-events: auto;
}

@keyframes product-slide-in-right {
	from {
		opacity: 0.65;
		transform: translateX(28px);
	}
	to {
		opacity: 1;
		transform: translateX(0);
	}
}

@keyframes product-slide-in-left {
	from {
		opacity: 0.65;
		transform: translateX(-28px);
	}
	to {
		opacity: 1;
		transform: translateX(0);
	}
}

@media (max-width: 980px) {
	.site-header {
		position: static;
		backdrop-filter: none;
		background: transparent;
		border-bottom: 0;
		padding-bottom: 0;
		flex-wrap: nowrap;
		position: relative;
	}

	.brand {
		flex: 1 1 auto;
		min-width: 0;
	}

	.header-controls {
		margin-left: auto;
	}

	.nav-toggle {
		display: inline-flex;
	}

	.site-nav {
		position: absolute;
		top: calc(100% + 0.45rem);
		left: 0;
		right: 0;
		width: auto;
		order: 3;
		margin-left: 0;
		padding: 0.55rem;
		border-radius: var(--radius-lg);
		justify-content: flex-start;
		align-items: center;
		z-index: 70;
	}

	html.js .site-nav {
		display: none;
	}

	html.js .site-nav.is-open {
		display: flex;
	}

	.site-nav a {
		flex: 0 0 auto;
		text-align: left;
	}
}

@media (max-width: 720px) {
	.site-nav {
		display: flex;
		flex-wrap: wrap;
		gap: 0.42rem;
		max-height: min(70vh, 460px);
		overflow-y: auto;
	}

	html.js .site-nav {
		display: none;
	}

	html.js .site-nav.is-open {
		display: flex;
	}

	.site-nav a,
	.site-nav .theme-toggle {
		width: auto;
		text-align: center;
	}

	.theme-toggle {
		border-radius: 12px;
		height: 36px;
	}

	.footer-nav {
		grid-template-columns: 1fr;
	}

	.slider-arrow {
		width: 38px;
		height: 38px;
		font-size: 1.55rem;
	}

	.slider-arrow-prev {
		left: 0.45rem;
	}

	.slider-arrow-next {
		right: 0.45rem;
	}

	.product-thumbnails {
		justify-content: center;
	}

	.product-thumbnail img {
		height: 100%;
	}

	.price-calc-controls {
		grid-template-columns: 1fr;
		align-items: stretch;
	}

	.price-calc-check {
		justify-content: center;
	}
}

@media (prefers-reduced-motion: reduce) {
	* {
		animation: none !important;
		transition-duration: 0.01ms !important;
	}
}