/**
 * Design Vertex Blog Manager -- public styles.
 * All selectors are scoped under the `dvb-` prefix so nothing here can
 * collide with the active theme's CSS. Colors/spacing are exposed as
 * CSS custom properties on `.dvb-blog`/`.dvb-*` roots so a theme can
 * override them without touching this file. Loaded only when a page
 * actually contains plugin markup (see DVB_Assets).
 */

:root {
	--dvb-color-primary: #1a2b4c;
	--dvb-color-accent: #c9a24b;
	--dvb-color-text: #2b2b2b;
	--dvb-color-muted: #6b7280;
	--dvb-color-border: #e5e7eb;
	--dvb-color-surface: #ffffff;
	--dvb-radius: 10px;
	--dvb-gap: 28px;
	--dvb-font-heading: Georgia, 'Times New Roman', serif;
	--dvb-font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.dvb-blog,
.dvb-category-grid,
.dvb-related-posts,
.dvb-search-form,
.dvb-toc,
.dvb-author-box,
.dvb-share-buttons,
.dvb-faq,
.dvb-cta,
.dvb-breadcrumbs,
.dvb-post-nav {
	font-family: var(--dvb-font-body);
	color: var(--dvb-color-text);
	box-sizing: border-box;
}

.dvb-blog *,
.dvb-category-grid *,
.dvb-related-posts *,
.dvb-search-form *,
.dvb-toc *,
.dvb-author-box *,
.dvb-share-buttons *,
.dvb-faq *,
.dvb-cta *,
.dvb-breadcrumbs *,
.dvb-post-nav * {
	box-sizing: border-box;
}

.dvb-blog-empty {
	color: var(--dvb-color-muted);
	font-style: italic;
}

/* ---------- Grid layout ---------- */

.dvb-blog-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--dvb-gap);
}

.dvb-blog-grid.dvb-cols-1 { grid-template-columns: 1fr; }
.dvb-blog-grid.dvb-cols-2 { grid-template-columns: repeat(2, 1fr); }
.dvb-blog-grid.dvb-cols-3 { grid-template-columns: repeat(3, 1fr); }
.dvb-blog-grid.dvb-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
	.dvb-blog-grid.dvb-cols-3,
	.dvb-blog-grid.dvb-cols-4 {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 576px) {
	.dvb-blog-grid {
		grid-template-columns: 1fr !important;
	}
}

.dvb-blog-card {
	background: var(--dvb-color-surface);
	border: 1px solid var(--dvb-color-border);
	border-radius: var(--dvb-radius);
	overflow: hidden;
	display: flex;
	flex-direction: column;
	transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.dvb-blog-card:hover {
	box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
	transform: translateY(-2px);
}

.dvb-blog-card-thumb {
	display: block;
	aspect-ratio: 16 / 10;
	overflow: hidden;
}

.dvb-blog-card-thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform 0.3s ease;
}

.dvb-blog-card:hover .dvb-blog-card-thumb img {
	transform: scale(1.04);
}

.dvb-blog-card-body {
	padding: 20px;
	display: flex;
	flex-direction: column;
	gap: 10px;
	flex: 1;
}

.dvb-blog-card-cats {
	text-transform: uppercase;
	font-size: 11px;
	letter-spacing: 0.08em;
}

.dvb-blog-card-cat {
	color: var(--dvb-color-accent);
	text-decoration: none;
	font-weight: 600;
}

.dvb-blog-card-title {
	margin: 0;
	font-family: var(--dvb-font-heading);
	font-size: 20px;
	line-height: 1.3;
}

.dvb-blog-card-title a,
.dvb-blog-hero-title a,
.dvb-blog-row-title a,
.dvb-blog-minimal-title {
	color: var(--dvb-color-primary);
	text-decoration: none;
}

.dvb-blog-card-title a:hover,
.dvb-blog-hero-title a:hover,
.dvb-blog-row-title a:hover,
.dvb-blog-minimal-title:hover {
	text-decoration: underline;
}

.dvb-blog-card-meta,
.dvb-blog-row-meta,
.dvb-blog-hero-meta {
	display: flex;
	gap: 12px;
	font-size: 13px;
	color: var(--dvb-color-muted);
	flex-wrap: wrap;
}

.dvb-blog-card-excerpt,
.dvb-blog-row-excerpt,
.dvb-blog-hero-excerpt {
	margin: 0;
	color: var(--dvb-color-text);
	font-size: 15px;
	line-height: 1.6;
	flex: 1;
}

.dvb-blog-card-link {
	margin-top: auto;
	color: var(--dvb-color-primary);
	font-weight: 600;
	text-decoration: none;
	font-size: 14px;
}

.dvb-blog-card-link:hover {
	color: var(--dvb-color-accent);
}

/* ---------- Pagination ---------- */

.dvb-blog-pagination {
	margin-top: 32px;
	display: flex;
	justify-content: center;
	gap: 6px;
}

.dvb-blog-pagination .page-numbers {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 36px;
	height: 36px;
	padding: 0 8px;
	border: 1px solid var(--dvb-color-border);
	border-radius: 6px;
	color: var(--dvb-color-primary);
	text-decoration: none;
	font-size: 14px;
}

.dvb-blog-pagination .page-numbers.current {
	background: var(--dvb-color-primary);
	color: #fff;
	border-color: var(--dvb-color-primary);
}

/* ---------- List layout ---------- */

.dvb-blog-list {
	display: flex;
	flex-direction: column;
	gap: 24px;
}

.dvb-blog-row {
	display: grid;
	grid-template-columns: 220px 1fr;
	gap: 24px;
	padding-bottom: 24px;
	border-bottom: 1px solid var(--dvb-color-border);
}

.dvb-blog-row-thumb {
	display: block;
	aspect-ratio: 4 / 3;
	border-radius: var(--dvb-radius);
	overflow: hidden;
}

.dvb-blog-row-thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.dvb-blog-row-body {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.dvb-blog-row-title {
	margin: 0;
	font-family: var(--dvb-font-heading);
	font-size: 22px;
}

@media (max-width: 576px) {
	.dvb-blog-row {
		grid-template-columns: 1fr;
	}
}

/* ---------- Featured / Magazine layouts ---------- */

.dvb-blog-hero {
	display: grid;
	grid-template-columns: 1.2fr 1fr;
	gap: 32px;
	align-items: center;
	margin-bottom: var(--dvb-gap);
	padding-bottom: var(--dvb-gap);
	border-bottom: 2px solid var(--dvb-color-border);
}

.dvb-blog-hero-thumb {
	display: block;
	aspect-ratio: 16 / 11;
	border-radius: var(--dvb-radius);
	overflow: hidden;
}

.dvb-blog-hero-thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.dvb-blog-hero-title {
	font-family: var(--dvb-font-heading);
	font-size: 32px;
	line-height: 1.2;
	margin: 0 0 12px;
}

@media (max-width: 768px) {
	.dvb-blog-hero {
		grid-template-columns: 1fr;
	}
}

.dvb-blog-magazine-section {
	margin-top: 40px;
}

.dvb-blog-magazine-section-title {
	font-family: var(--dvb-font-heading);
	font-size: 22px;
	border-left: 4px solid var(--dvb-color-accent);
	padding-left: 12px;
	margin-bottom: 18px;
}

.dvb-blog-magazine-section-title a {
	color: var(--dvb-color-primary);
	text-decoration: none;
}

/* ---------- Minimal layout ---------- */

.dvb-blog-minimal-list {
	list-style: none;
	margin: 0;
	padding: 0;
}

.dvb-blog-minimal-item {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	gap: 16px;
	padding: 14px 0;
	border-bottom: 1px solid var(--dvb-color-border);
}

.dvb-blog-minimal-title {
	font-size: 17px;
	font-weight: 600;
}

.dvb-blog-minimal-meta {
	font-size: 13px;
	color: var(--dvb-color-muted);
	white-space: nowrap;
}

/* ---------- Category grid ---------- */

.dvb-category-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 18px;
}

.dvb-category-grid.dvb-cols-2 { grid-template-columns: repeat(2, 1fr); }
.dvb-category-grid.dvb-cols-3 { grid-template-columns: repeat(3, 1fr); }
.dvb-category-grid.dvb-cols-4 { grid-template-columns: repeat(4, 1fr); }
.dvb-category-grid.dvb-cols-5 { grid-template-columns: repeat(5, 1fr); }
.dvb-category-grid.dvb-cols-6 { grid-template-columns: repeat(6, 1fr); }

@media (max-width: 768px) {
	.dvb-category-grid {
		grid-template-columns: repeat(2, 1fr) !important;
	}
}

.dvb-category-card {
	display: flex;
	flex-direction: column;
	border: 1px solid var(--dvb-color-border);
	border-radius: var(--dvb-radius);
	overflow: hidden;
	text-decoration: none;
	color: inherit;
	background: var(--dvb-color-surface);
}

.dvb-category-card-image {
	display: block;
	aspect-ratio: 3 / 2;
	background-size: cover;
	background-position: center;
}

.dvb-category-card-body {
	padding: 14px 16px;
}

.dvb-category-card-name {
	display: block;
	font-weight: 700;
	color: var(--dvb-color-primary);
}

.dvb-category-card-count {
	display: block;
	font-size: 12px;
	color: var(--dvb-color-muted);
	margin-top: 4px;
}

/* ---------- Search / filter form ---------- */

.dvb-search-row {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
}

.dvb-search-input,
.dvb-search-category {
	padding: 10px 14px;
	border: 1px solid var(--dvb-color-border);
	border-radius: 6px;
	font-size: 14px;
}

.dvb-search-input {
	flex: 1;
	min-width: 200px;
}

.dvb-search-submit {
	padding: 10px 20px;
	border: none;
	border-radius: 6px;
	background: var(--dvb-color-primary);
	color: #fff;
	font-weight: 600;
	cursor: pointer;
}

.dvb-search-submit:hover {
	background: var(--dvb-color-accent);
}

.dvb-search-results {
	margin-top: 24px;
}

.dvb-search-results[aria-busy="true"] {
	opacity: 0.5;
}

/* ---------- Table of contents ---------- */

.dvb-toc {
	border: 1px solid var(--dvb-color-border);
	border-radius: var(--dvb-radius);
	padding: 16px 20px;
	margin: 0 0 28px;
	background: #fafafa;
}

.dvb-toc-sticky {
	position: sticky;
	top: 20px;
}

.dvb-toc-toggle {
	display: flex;
	justify-content: space-between;
	align-items: center;
	width: 100%;
	background: none;
	border: none;
	font-weight: 700;
	font-size: 15px;
	cursor: pointer;
	padding: 0;
	color: var(--dvb-color-primary);
}

.dvb-toc-list {
	margin: 14px 0 0;
	padding-left: 20px;
}

.dvb-toc-list.dvb-toc-collapsed {
	display: none;
}

.dvb-toc-item {
	margin-bottom: 6px;
	font-size: 14px;
}

.dvb-toc-level-3 {
	margin-left: 16px;
	font-size: 13px;
}

.dvb-toc-item a {
	color: var(--dvb-color-text);
	text-decoration: none;
}

.dvb-toc-item a:hover {
	color: var(--dvb-color-accent);
	text-decoration: underline;
}

/* ---------- Author box ---------- */

.dvb-author-box {
	display: flex;
	gap: 16px;
	align-items: flex-start;
	border-top: 1px solid var(--dvb-color-border);
	border-bottom: 1px solid var(--dvb-color-border);
	padding: 24px 0;
	margin: 32px 0;
}

.dvb-author-box-avatar img {
	border-radius: 50%;
	display: block;
}

.dvb-author-box-label {
	font-size: 12px;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--dvb-color-muted);
}

.dvb-author-box-name {
	margin: 2px 0 8px;
	font-family: var(--dvb-font-heading);
	font-size: 18px;
}

.dvb-author-box-name a {
	color: var(--dvb-color-primary);
	text-decoration: none;
}

.dvb-author-box-bio {
	margin: 0 0 8px;
	font-size: 14px;
	color: var(--dvb-color-text);
}

.dvb-author-box-website {
	font-size: 13px;
	color: var(--dvb-color-accent);
}

/* ---------- Share buttons ---------- */

.dvb-share-buttons {
	display: flex;
	align-items: center;
	gap: 10px;
	flex-wrap: wrap;
	margin: 24px 0;
}

.dvb-share-label {
	font-weight: 600;
	font-size: 13px;
	color: var(--dvb-color-muted);
}

.dvb-share-btn {
	display: inline-flex;
	align-items: center;
	padding: 8px 14px;
	border-radius: 999px;
	border: 1px solid var(--dvb-color-border);
	background: var(--dvb-color-surface);
	color: var(--dvb-color-primary);
	font-size: 13px;
	font-weight: 600;
	text-decoration: none;
	cursor: pointer;
}

.dvb-share-btn:hover,
.dvb-share-btn:focus-visible {
	background: var(--dvb-color-primary);
	color: #fff;
	outline: none;
}

/* ---------- FAQ ---------- */

.dvb-faq {
	margin: 32px 0;
}

.dvb-faq-heading {
	font-family: var(--dvb-font-heading);
	font-size: 22px;
	margin-bottom: 16px;
}

.dvb-faq-item {
	border-bottom: 1px solid var(--dvb-color-border);
}

.dvb-faq-question {
	margin: 0;
}

.dvb-faq-question-toggle {
	display: flex;
	justify-content: space-between;
	align-items: center;
	width: 100%;
	text-align: left;
	background: none;
	border: none;
	padding: 16px 0;
	font-size: 16px;
	font-weight: 600;
	cursor: pointer;
	color: var(--dvb-color-text);
}

.dvb-faq-question-toggle[aria-expanded="true"] .dvb-faq-icon {
	transform: rotate(45deg);
}

.dvb-faq-icon {
	transition: transform 0.15s ease;
	font-size: 20px;
	color: var(--dvb-color-accent);
}

.dvb-faq-answer {
	padding: 0 0 16px;
	color: var(--dvb-color-text);
	font-size: 15px;
	line-height: 1.6;
}

/* ---------- CTA ---------- */

.dvb-cta {
	background: var(--dvb-color-primary);
	color: #fff;
	border-radius: var(--dvb-radius);
	padding: 32px;
	margin: 32px 0;
	text-align: center;
}

.dvb-cta-heading {
	margin: 0 0 8px;
	font-family: var(--dvb-font-heading);
	font-size: 24px;
	color: #fff;
}

.dvb-cta-text {
	margin: 0 0 16px;
	opacity: 0.9;
}

.dvb-cta-button {
	display: inline-block;
	padding: 12px 28px;
	background: var(--dvb-color-accent);
	color: #1a1a1a;
	border-radius: 999px;
	text-decoration: none;
	font-weight: 700;
}

/* ---------- Breadcrumbs ---------- */

.dvb-breadcrumbs ol {
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin: 0 0 16px;
	padding: 0;
	font-size: 13px;
	color: var(--dvb-color-muted);
}

.dvb-breadcrumbs li:not(:last-child)::after {
	content: '/';
	margin-left: 6px;
	color: var(--dvb-color-border);
}

.dvb-breadcrumbs a {
	color: var(--dvb-color-muted);
	text-decoration: none;
}

.dvb-breadcrumbs a:hover {
	color: var(--dvb-color-primary);
}

/* ---------- Related posts ---------- */

.dvb-related-posts {
	margin: 40px 0;
}

.dvb-related-posts-title {
	font-family: var(--dvb-font-heading);
	font-size: 24px;
	margin-bottom: 20px;
}

/* ---------- Prev / next navigation ---------- */

.dvb-post-nav {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
	margin: 32px 0;
}

.dvb-post-nav-prev,
.dvb-post-nav-next {
	display: flex;
	flex-direction: column;
	gap: 4px;
	padding: 16px;
	border: 1px solid var(--dvb-color-border);
	border-radius: var(--dvb-radius);
	text-decoration: none;
}

.dvb-post-nav-next {
	text-align: right;
}

.dvb-post-nav-label {
	font-size: 12px;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--dvb-color-muted);
}

.dvb-post-nav-title {
	color: var(--dvb-color-primary);
	font-weight: 600;
}

@media (max-width: 576px) {
	.dvb-post-nav {
		grid-template-columns: 1fr;
	}
}

/* ---------- Accessibility helpers ---------- */

.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;
}

.dvb-blog a:focus-visible,
.dvb-toc a:focus-visible,
.dvb-faq button:focus-visible,
.dvb-share-btn:focus-visible,
.dvb-search-form input:focus-visible,
.dvb-search-form select:focus-visible,
.dvb-search-form button:focus-visible {
	outline: 2px solid var(--dvb-color-accent);
	outline-offset: 2px;
}