:root {
	--primary: #004d40;
	--secondary: #00bfa5;
	--accent: #ffab00;
	--bg: #ffffff;
	--text: #263238;
}

* {
	box-sizing: border-box;
}

[hidden] {
	display: none !important;
}

[id] {
	scroll-margin-top: 120px;
}

a:focus-visible,
summary:focus-visible {
	outline: 3px solid var(--secondary);
	outline-offset: 5px;
}

body {
	font-family: 'Inter', -apple-system, sans-serif;
	line-height: 1.6;
	margin: 0;
	color: var(--text);
}

.container {
	max-width: 1200px;
	margin: auto;
	padding: 0 20px;
}

.promo-bar {
	background: var(--primary);
	color: white;
	text-align: center;
	padding: 10px 0;
	font-size: 13px;
	font-weight: bold;
}

header {
	background: white;
	padding: 20px 0;
	border-bottom: 1px solid #eee;
	position: sticky;
	top: 0;
	z-index: 1000;
}

.nav-flex {
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.logo {
	font-size: 24px;
	font-weight: 800;
	color: var(--primary);
	text-decoration: none;
}

nav a {
	margin-left: 25px;
	text-decoration: none;
	color: var(--text);
	font-weight: 500;
	font-size: 14px;
}

.hero {
	background: linear-gradient(135deg, #e0f2f1 0%, #ffffff 100%);
	padding: 100px 0;
}

.hero-content {
	max-width: 720px;
	text-align: center;
	margin: 0 auto
}

.hero h1 {
	font-size: 56px;
	line-height: 1.1;
	color: var(--primary);
}

.section {
	padding: 80px 0;
}

.section-header {
	text-align: center;
	margin-bottom: 50px;
}

.product-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
	gap: 30px;
}

.product-card {
	background: white;
	border: 1px solid #eee;
	border-radius: 12px;
	padding: 24px;
	transition: 0.3s;
	position: relative;
}

.product-card h3 a {
	color: inherit;
	text-decoration: none;
}

.product-card h3 a:hover {
	color: var(--primary);
	text-decoration: underline;
}

.product-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.product-image {
	background: #f9f9f9;
	border-radius: 8px;
	height: 250px;
	margin-bottom: 20px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #ccc;
}

.product-image img {
	width: 100%;
	height: 250px;
	object-fit: contain;
}

.badge {
	position: absolute;
	top: 20px;
	left: 20px;
	background: var(--secondary);
	color: white;
	padding: 4px 12px;
	border-radius: 20px;
	font-size: 11px;
	font-weight: bold;
	pointer-events: none;
}

.stars {
	color: var(--accent);
	font-size: 12px;
}

.price-row {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-top: 20px;
	padding-top: 15px;
	border-top: 1px solid #eee;
	gap: 12px;
	flex-wrap: wrap;
}

.price {
	font-size: 24px;
	font-weight: bold;
}

.add-btn {
	background: var(--primary);
	color: white;
	padding: 12px 24px;
	border-radius: 6px;
	text-decoration: none;
	font-weight: bold;
	display: inline-block;
	text-align: center;
}

.add-btn:hover {
	background: #00695c;
}

.science-box {
	background: var(--primary);
	color: white;
	border-radius: 20px;
	padding: 60px;
}

.cert-icons {
	display: flex;
	gap: 15px;
	margin-top: 20px;
	flex-wrap: wrap;
}

.cert-icon {
	border: 1px solid rgba(255, 255, 255, 0.3);
	padding: 8px 15px;
	border-radius: 5px;
	font-size: 11px;
}

footer {
	background: #102027;
	color: #90a4ae;
	padding: 60px 0 20px;
}

.footer-grid {
	display: grid;
	grid-template-columns: 2fr 1fr 1fr 1fr;
	gap: 40px;
}

.footer-col h4 {
	color: white;
	margin-bottom: 20px;
}

.footer-col a {
	color: #90a4ae;
	text-decoration: none;
	display: block;
	margin-bottom: 10px;
	font-size: 14px;
}

@media (max-width: 760px) {
	header {
		padding: 16px 0;
	}

	.nav-flex {
		flex-direction: column;
		gap: 12px;
	}

	.nav-flex nav {
		display: flex;
		flex-wrap: wrap;
		justify-content: center;
		gap: 8px 18px;
	}

	nav a {
		margin-left: 0;
	}

	.hero,
	.section {
		padding: 48px 0;
	}

	.hero h1 {
		font-size: 38px;
	}

	.science-box {
		padding: 32px 24px;
	}

	.footer-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 24px;
	}

	.footer-col:first-child {
		grid-column: 1 / -1;
	}
}