/* ====================================================================
   Danh sách bài viết, chuyên mục, tìm kiếm, 404, case study (GĐ5)
   ==================================================================== */

.nh-chips {
	display: flex;
	flex-wrap: wrap;
	gap: var(--nh-space-8);
	overflow-x: auto;
	padding-bottom: 4px;
}
.nh-chips .nh-chip.is-active {
	border: 1.5px solid var(--nh-ink);
}
.nh-chip__count {
	opacity: 0.7;
}

.nh-posts-empty,
.nh-cases-empty,
.nh-search-empty {
	color: var(--nh-muted);
	padding: var(--nh-space-24) 0;
}

/* Thẻ bài nổi bật — DESIGN.md B7 "Thẻ bài nổi bật" */
.nh-featured-card {
	display: flex;
	flex-direction: column;
	background-color: var(--nh-card);
	border: 1px solid var(--nh-line);
	border-radius: var(--nh-radius-card);
	overflow: hidden;
	text-decoration: none;
	color: inherit;
}
@media (min-width: 782px) {
	.nh-featured-card {
		flex-direction: row;
	}
	.nh-featured-card__image {
		width: 55%;
	}
	.nh-featured-card__body {
		width: 45%;
	}
}
.nh-featured-card__image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}
.nh-featured-card__body {
	padding: var(--nh-space-24);
}
.nh-featured-card__title {
	font-family: 'Lora', serif;
	font-weight: 600;
	font-size: 30px;
	margin: var(--nh-space-12) 0;
	color: var(--nh-ink);
}
.nh-featured-card__excerpt {
	color: var(--nh-muted);
}

/* Breadcrumb — DESIGN.md B7 */
.nh-breadcrumb,
.nh-breadcrumb * {
	font-size: 13px;
	color: var(--nh-muted);
}
.nh-breadcrumb a {
	color: var(--nh-muted);
	text-decoration: none;
}

.nh-post-title {
	margin-bottom: var(--nh-space-16);
}

/* Chuyên mục */
.nh-category-head {
	margin-bottom: var(--nh-space-24);
}
.nh-category-intro {
	color: var(--nh-muted);
	max-width: 720px;
}
.nh-category-description {
	margin: var(--nh-space-32) 0;
	border-top: 1px solid var(--nh-line);
	padding-top: var(--nh-space-16);
}
.nh-category-description summary {
	cursor: pointer;
	color: var(--nh-accent);
	font-weight: 600;
}
.nh-category-cta {
	margin-top: var(--nh-space-40);
}

/* Case study */
.nh-cases-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--nh-space-24);
}
@media (max-width: 781px) {
	.nh-cases-grid {
		grid-template-columns: 1fr;
	}
}
.nh-case-card {
	display: block;
	text-decoration: none;
	color: inherit;
	overflow: hidden;
}
.nh-case-card__image img {
	aspect-ratio: 3 / 2;
	object-fit: cover;
	width: 100%;
	display: block;
	border-radius: var(--nh-radius-card) var(--nh-radius-card) 0 0;
}
.nh-case-card__body {
	padding: var(--nh-space-16);
}
.nh-case-card__title {
	font-family: 'Lora', serif;
	margin: var(--nh-space-8) 0;
}
.nh-case-card__metric-value {
	font-family: 'Lora', serif;
	font-weight: 600;
	font-size: 28px;
	color: var(--nh-ink);
}
.nh-case-card__metric-label {
	font-size: 14px;
	color: var(--nh-muted);
}

.nh-case-facts__chips {
	display: flex;
	flex-wrap: wrap;
	gap: var(--nh-space-8);
	margin-bottom: var(--nh-space-24);
}
.nh-case-facts__metrics {
	display: flex;
	gap: var(--nh-space-32);
	flex-wrap: wrap;
	margin-bottom: var(--nh-space-32);
}
.nh-case-metric__value {
	display: block;
	font-family: 'Lora', serif;
	font-weight: 600;
	font-size: 44px;
	color: var(--nh-ink);
}
.nh-case-metric__label {
	font-size: 14px;
	color: var(--nh-muted);
}
.nh-case-section {
	margin-bottom: var(--nh-space-32);
}
.nh-case-quote {
	font-family: 'Lora', serif;
	font-style: italic;
	font-size: 22px;
	border-left: 3px solid var(--nh-ink);
	padding-left: var(--nh-space-20);
	margin: var(--nh-space-32) 0;
}
.nh-case-single__cta {
	margin-top: var(--nh-space-40);
}

/* searchform tối giản dùng trong ux_html (404, /blog/) */
.searchform .flex-row {
	display: flex;
	gap: var(--nh-space-8);
}
.searchform .search-field {
	width: 100%;
	height: 48px;
	border: 1px solid var(--nh-line-strong);
	border-radius: var(--nh-radius-input);
	padding: 0 var(--nh-space-16);
}
.searchform .search-field:focus {
	outline: none;
	border-color: var(--nh-accent);
	border-width: 2px;
}
.searchform button {
	height: 48px;
	padding: 0 var(--nh-space-20);
	border-radius: var(--nh-radius-input);
	background-color: var(--nh-ink);
	color: #fff;
	border: none;
	cursor: pointer;
}