/**
 * Cherry Ngọc — Design system & base styles
 * Phase 1: tokens, layout primitives, header/footer shell
 */

:root {
	/* Brand */
	--cn-green-900: #064b2c;
	--cn-green-800: #075b35;
	--cn-green-700: #08723f;
	--cn-green-100: #eaf4ed;
	--cn-cream: #f8f5ee;
	--cn-white: #ffffff;
	--cn-text: #1f2d25;
	--cn-muted: #67736c;
	--cn-border: #e5e9e6;

	/* Layout */
	--cn-container: 1320px;
	--cn-gutter: 32px;
	--cn-radius: 14px;
	--cn-radius-sm: 10px;
	--cn-section-y: 120px;
	--cn-header-h: 76px;

	/* Type */
	--cn-font-heading: "Lora", "Times New Roman", Georgia, serif;
	--cn-font-body: "Be Vietnam Pro", system-ui, -apple-system, sans-serif;

	/* Motion */
	--cn-ease: cubic-bezier(0.22, 1, 0.36, 1);
	--cn-duration: 200ms;
	--cn-duration-hover: 300ms;

	/* Elevation */
	--cn-shadow-header: 0 1px 0 rgba(31, 45, 37, 0.06), 0 8px 24px rgba(31, 45, 37, 0.04);
}

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

html {
	scroll-behavior: smooth;
	overflow-x: clip;
}

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

body {
	margin: 0;
	font-family: var(--cn-font-body);
	font-size: 1rem;
	line-height: 1.6;
	color: var(--cn-text);
	background: var(--cn-white);
	-webkit-font-smoothing: antialiased;
	overflow-x: clip;
}

body.cn-nav-open {
	overflow: hidden;
}

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

a {
	color: inherit;
	text-decoration: none;
	transition: color var(--cn-duration) var(--cn-ease);
}

a:hover {
	color: var(--cn-green-700);
}

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

h1,
h2,
h3,
h4 {
	font-family: var(--cn-font-heading);
	font-weight: 600;
	line-height: 1.2;
	color: var(--cn-text);
	margin: 0 0 0.5em;
}

p {
	margin: 0 0 1em;
}

ul,
ol {
	margin: 0;
	padding: 0;
	list-style: none;
}

:focus-visible {
	outline: 2px solid var(--cn-green-700);
	outline-offset: 3px;
}

.screen-reader-text,
.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;
}

.cn-skip-link {
	position: absolute;
	left: -9999px;
	top: 0;
	z-index: 10000;
	padding: 0.75rem 1rem;
	background: var(--cn-green-900);
	color: var(--cn-white);
}

.cn-skip-link:focus {
	left: 1rem;
	top: 1rem;
}

/* Layout */
.cn-container {
	width: 100%;
	max-width: var(--cn-container);
	margin-inline: auto;
	padding-inline: var(--cn-gutter);
}

.cn-main {
	min-height: 50vh;
}

.cn-stack {
	padding-block: clamp(4rem, 8vw, var(--cn-section-y));
}

.cn-stack--narrow {
	max-width: 760px;
	margin-inline: auto;
}

.cn-section {
	padding-block: var(--cn-section-y);
}

.cn-eyebrow {
	font-family: var(--cn-font-body);
	font-size: 0.8125rem;
	font-weight: 600;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--cn-green-700);
	margin: 0 0 0.75rem;
}

.cn-page-header {
	margin-bottom: 2.5rem;
}

.cn-page-header__title {
	font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.cn-page-header__desc {
	color: var(--cn-muted);
	max-width: 40rem;
}

/* Buttons */
.cn-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	min-height: 48px;
	padding: 0.75rem 1.35rem;
	border: 1px solid transparent;
	border-radius: var(--cn-radius-sm);
	font-weight: 600;
	font-size: 0.9375rem;
	line-height: 1;
	cursor: pointer;
	transition:
		background-color var(--cn-duration) var(--cn-ease),
		color var(--cn-duration) var(--cn-ease),
		border-color var(--cn-duration) var(--cn-ease),
		transform var(--cn-duration) var(--cn-ease);
}

.cn-btn--primary {
	background: var(--cn-green-800);
	color: var(--cn-white);
}

.cn-btn--primary:hover {
	background: var(--cn-green-900);
	color: var(--cn-white);
}

.cn-btn--ghost {
	background: transparent;
	border-color: var(--cn-border);
	color: var(--cn-text);
}

.cn-btn--ghost:hover {
	border-color: var(--cn-green-700);
	color: var(--cn-green-800);
}

.cn-icon-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	padding: 0;
	border: 0;
	border-radius: var(--cn-radius-sm);
	background: transparent;
	color: var(--cn-text);
	cursor: pointer;
	transition: background-color var(--cn-duration) var(--cn-ease);
}

.cn-icon-btn:hover {
	background: var(--cn-green-100);
	color: var(--cn-green-800);
}

.cn-icon-btn:disabled {
	opacity: 0.35;
	cursor: not-allowed;
	pointer-events: none;
}

.cn-icon {
	display: inline-flex;
	line-height: 0;
}

/* Header */
.cn-header {
	position: sticky;
	top: 0;
	z-index: 1000;
	height: var(--cn-header-h);
	background: rgba(255, 255, 255, 0.92);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid transparent;
	transition:
		background-color var(--cn-duration) var(--cn-ease),
		box-shadow var(--cn-duration) var(--cn-ease),
		border-color var(--cn-duration) var(--cn-ease);
}

.cn-header.is-scrolled {
	background: var(--cn-white);
	border-bottom-color: var(--cn-border);
	box-shadow: var(--cn-shadow-header);
}

.cn-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1.5rem;
	height: var(--cn-header-h);
}

.cn-brand,
.cn-header .custom-logo-link {
	display: inline-flex;
	align-items: center;
	text-decoration: none;
}

.cn-brand__name {
	font-family: var(--cn-font-heading);
	font-size: 1.35rem;
	font-weight: 700;
	letter-spacing: 0.02em;
	color: var(--cn-green-900);
	text-transform: uppercase;
}

.cn-header .custom-logo {
	max-height: 44px;
	width: auto;
}

.cn-nav {
	flex: 1;
	display: flex;
	justify-content: center;
}

.cn-nav__list {
	display: flex;
	align-items: center;
	gap: 0.25rem 1.75rem;
}

.cn-nav__link {
	font-size: 0.9375rem;
	font-weight: 500;
	color: var(--cn-text);
	padding: 0.35rem 0;
}

.cn-nav__link:hover,
.cn-nav__item.current-menu-item > .cn-nav__link {
	color: var(--cn-green-700);
}

.cn-header__actions {
	display: flex;
	align-items: center;
	gap: 0.25rem;
}

.cn-header__cart {
	position: relative;
}

.cn-header__cart-count {
	position: absolute;
	top: 4px;
	right: 4px;
	min-width: 18px;
	height: 18px;
	padding: 0 4px;
	border-radius: 999px;
	background: var(--cn-green-700);
	color: var(--cn-white);
	font-size: 0.6875rem;
	font-weight: 700;
	line-height: 18px;
	text-align: center;
}

.cn-header__cart-count:empty,
.cn-header__cart-count[data-cn-cart-count="0"] {
	display: none;
}

.cn-header__cta {
	margin-left: 0.5rem;
	min-height: 42px;
	padding-inline: 1.1rem;
	font-size: 0.875rem;
}

.cn-header__toggle {
	display: none;
}

.cn-header__search {
	border-top: 1px solid var(--cn-border);
	padding: 1rem 0;
	background: var(--cn-white);
}

.cn-header__search[hidden],
.cn-mobile-nav[hidden] {
	display: none !important;
}

.cn-search-form {
	display: flex;
	gap: 0.75rem;
	align-items: center;
}

.cn-search-form__input {
	flex: 1;
	min-height: 48px;
	padding: 0.75rem 1rem;
	border: 1px solid var(--cn-border);
	border-radius: var(--cn-radius-sm);
	background: var(--cn-cream);
}

.cn-mobile-nav {
	display: none;
	border-top: 1px solid var(--cn-border);
	background: var(--cn-white);
	padding: 1rem var(--cn-gutter) 1.5rem;
}

.cn-mobile-nav__list {
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
}

.cn-mobile-nav__list a {
	display: block;
	padding: 0.85rem 0;
	font-weight: 500;
	border-bottom: 1px solid var(--cn-border);
}

/* Content / blog cards */
.cn-post-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1.5rem;
}

.cn-post-card {
	display: flex;
	flex-direction: column;
	height: 100%;
	margin: 0;
	border-radius: var(--cn-radius);
	background: var(--cn-white);
	border: 1px solid var(--cn-border);
	overflow: hidden;
	transition:
		transform var(--cn-duration) var(--cn-ease),
		border-color var(--cn-duration) var(--cn-ease),
		box-shadow var(--cn-duration) var(--cn-ease);
}

.cn-post-card:hover {
	transform: translateY(-4px);
	border-color: var(--cn-green-100);
	box-shadow: 0 18px 40px rgba(6, 75, 44, 0.08);
}

.cn-post-card__link {
	display: flex;
	flex-direction: column;
	height: 100%;
	color: inherit;
}

.cn-post-card__link:hover {
	color: inherit;
}

.cn-post-card__media {
	position: relative;
	display: block;
	overflow: hidden;
	background: var(--cn-cream);
}

.cn-post-card__media img {
	width: 100%;
	aspect-ratio: 3 / 2;
	object-fit: cover;
	transition: transform var(--cn-duration-hover) var(--cn-ease);
}

.cn-post-card:hover .cn-post-card__media img {
	transform: scale(1.04);
}

.cn-post-card__body {
	display: flex;
	flex-direction: column;
	flex: 1;
	gap: 0.65rem;
	padding: 1.15rem 1.2rem 1.25rem;
}

.cn-post-card__title {
	font-size: 1.125rem;
	line-height: 1.4;
	margin: 0;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.cn-post-card__title a {
	color: inherit;
}

.cn-post-card__date {
	font-size: 0.8125rem;
	color: var(--cn-muted);
}

.cn-content {
	font-size: 1.0625rem;
	color: var(--cn-text);
}

.cn-content > *:last-child {
	margin-bottom: 0;
}

.cn-single__media {
	margin: 0 0 2rem;
	border-radius: var(--cn-radius);
	overflow: hidden;
}

.cn-empty {
	text-align: center;
	padding: 3rem 1rem;
}

/* Footer */
.cn-footer {
	background: var(--cn-green-900);
	color: rgba(255, 255, 255, 0.88);
	padding-top: 4.5rem;
	margin-top: auto;
}

.cn-footer a {
	color: rgba(255, 255, 255, 0.88);
}

.cn-footer a:hover {
	color: var(--cn-white);
}

.cn-footer__grid {
	display: grid;
	grid-template-columns: 1.4fr repeat(4, 1fr);
	gap: 2.5rem 2rem;
	padding-bottom: 3.5rem;
}

.cn-footer .cn-brand__name,
.cn-footer .custom-logo-link {
	color: var(--cn-white);
}

.cn-footer__slogan {
	margin-top: 1rem;
	max-width: 18rem;
	color: rgba(255, 255, 255, 0.7);
	font-size: 0.9375rem;
}

.cn-footer__tax {
	margin: 0.75rem 0 0;
	font-size: 0.8125rem;
	color: rgba(255, 255, 255, 0.55);
}

.cn-footer__heading {
	font-family: var(--cn-font-body);
	font-size: 0.8125rem;
	font-weight: 600;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--cn-white);
	margin-bottom: 1.1rem;
}

.cn-footer__list {
	display: flex;
	flex-direction: column;
	gap: 0.65rem;
	font-size: 0.9375rem;
}

.cn-footer__social {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem 1rem;
	margin-top: 1.25rem;
	font-size: 0.875rem;
}

.cn-footer__bottom {
	border-top: 1px solid rgba(255, 255, 255, 0.12);
	padding-block: 1.25rem;
}

.cn-footer__bottom-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	flex-wrap: wrap;
}

.cn-footer__copy {
	margin: 0;
	font-size: 0.875rem;
	color: rgba(255, 255, 255, 0.65);
}

.cn-footer__legal {
	display: flex;
	gap: 1.25rem;
	font-size: 0.875rem;
}