/**
 * PRAutoBlogger Posts Widget — Frontend Styles
 *
 * Uses CSS custom properties from the Peptide Starter theme so the widget
 * automatically adapts to light/dark mode via data-theme on <html>.
 *
 * Theme variable mapping:
 *   --color-text-primary     → headings, titles
 *   --color-text-secondary   → body text, excerpts
 *   --color-text-tertiary    → muted text (dates, reading time)
 *   --color-bg-primary       → page background
 *   --color-bg-secondary     → card background
 *   --color-bg-tertiary      → card hover, placeholder backgrounds
 *   --color-border-default   → card borders, dividers
 *   --color-border-subtle    → lighter borders
 *   --color-brand-primary    → accent (links, hover states, focus rings)
 *   --radius-md              → card border radius (8px)
 *   --transition-normal      → hover/focus transitions (200ms)
 *
 * All classes prefixed with `prab-` to avoid collisions with theme/plugins.
 *
 * @see includes/frontend/class-posts-widget.php — PHP class that enqueues this.
 * @see assets/js/posts-widget.js                — React component that uses these classes.
 * @see peptide-starter/style.css                — Theme CSS with variable definitions.
 */

/* ===== Widget Container ===== */
.prab-posts-widget {
	max-width: 1100px;
	margin: 0 auto;
	padding: var(--spacing-4xl, 80px) var(--spacing-md, 16px);
}

.prab-widget-header {
	text-align: center;
	margin-bottom: var(--spacing-2xl, 48px);
}

.prab-widget-header h2 {
	font-size: var(--text-h2, 30px);
	font-weight: var(--text-h2-weight, 700);
	line-height: var(--text-h2-lh, 1.25);
	letter-spacing: var(--text-h2-ls, -0.015em);
	color: var(--color-text-primary, #f9fafb);
	margin-bottom: var(--spacing-sm, 8px);
}

.prab-widget-header p {
	font-size: var(--text-body-lg, 15px);
	color: var(--color-text-secondary, #94a3b8);
	margin: 0;
}

/* ===== Grid Layout ===== */
.prab-posts-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
	gap: var(--spacing-lg, 24px);
}

/* ===== Post Card ===== */
.prab-post-card {
	background: var(--color-bg-secondary, #1f2937);
	border: 1px solid var(--color-border-default, #374151);
	border-radius: var(--radius-md, 8px);
	overflow: hidden;
	transition: border-color var(--transition-normal, 200ms ease-out),
	            transform var(--transition-normal, 200ms ease-out),
	            box-shadow var(--transition-normal, 200ms ease-out);
	display: flex;
	flex-direction: column;
	text-decoration: none;
	color: inherit;
}

.prab-post-card:hover {
	border-color: var(--color-text-tertiary, #9ca3af);
	transform: translateY(-2px);
	box-shadow: var(--shadow-lg, 0 10px 15px rgba(0, 0, 0, 0.1));
}

.prab-post-card:focus-visible {
	outline: var(--focus-width, 2px) solid var(--focus-color, var(--color-brand-primary, #3b82f6));
	outline-offset: var(--focus-offset, 2px);
	box-shadow: var(--focus-shadow, 0 0 0 4px rgba(59, 130, 246, 0.15));
}

/* Featured image area */
.prab-post-image {
	width: 100%;
	height: 180px;
	background: var(--color-bg-tertiary, #374151);
	position: relative;
	overflow: hidden;
}

.prab-post-image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform var(--transition-slow, 300ms ease-in-out);
}

.prab-post-card:hover .prab-post-image img {
	transform: scale(1.03);
}

/* Placeholder for posts without featured images */
.prab-post-image--placeholder {
	display: flex;
	align-items: center;
	justify-content: center;
}

.prab-post-image--placeholder svg {
	width: 48px;
	height: 48px;
	opacity: 0.15;
	color: var(--color-text-primary, #f9fafb);
}

/* Card body */
.prab-post-body {
	padding: var(--spacing-md, 16px) var(--spacing-lg, 24px) var(--spacing-lg, 24px);
	flex: 1;
	display: flex;
	flex-direction: column;
}

/* Category badge + date row */
.prab-post-meta {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm, 8px);
	margin-bottom: var(--spacing-md, 16px);
	flex-wrap: wrap;
}

.prab-badge {
	display: inline-flex;
	align-items: center;
	padding: 3px 10px;
	border-radius: var(--radius-sm, 4px);
	font-size: var(--text-label, 11px);
	font-weight: var(--text-label-weight, 500);
	letter-spacing: 0.04em;
	text-transform: uppercase;
}

/* Category badge colors — these are semantic and stay consistent in both modes */
.prab-badge--guides     { color: var(--color-status-success, #10b981); background: rgba(16, 185, 129, 0.12); }
.prab-badge--solutions  { color: #8b5cf6; background: rgba(139, 92, 246, 0.12); }
.prab-badge--comparisons { color: var(--color-status-warning, #f59e0b); background: rgba(245, 158, 11, 0.12); }
.prab-badge--articles   { color: var(--color-brand-primary, #3b82f6); background: rgba(59, 130, 246, 0.12); }
.prab-badge--default    { color: var(--color-text-tertiary, #9ca3af); background: rgba(148, 163, 184, 0.12); }

.prab-post-date {
	font-size: var(--text-body-sm, 12px);
	color: var(--color-text-tertiary, #9ca3af);
}

/* Title */
.prab-post-title {
	font-size: var(--text-h5, 17px);
	font-weight: var(--text-h5-weight, 700);
	line-height: var(--text-h5-lh, 1.4);
	color: var(--color-text-primary, #f9fafb);
	margin-bottom: var(--spacing-sm, 8px);
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
	transition: color var(--transition-normal, 200ms ease-out);
}

.prab-post-card:hover .prab-post-title {
	color: var(--color-brand-primary, #3b82f6);
}

/* Excerpt */
.prab-post-excerpt {
	font-size: var(--text-body-md, 13px);
	color: var(--color-text-secondary, #d1d5db);
	line-height: 1.6;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
	flex: 1;
	margin: 0;
}

/* Footer: reading time + arrow */
.prab-post-footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-top: var(--spacing-md, 16px);
	padding-top: var(--spacing-md, 16px);
	border-top: 1px solid var(--color-border-default, #374151);
}

.prab-reading-time {
	font-size: var(--text-body-sm, 12px);
	color: var(--color-text-tertiary, #9ca3af);
	display: flex;
	align-items: center;
	gap: 5px;
}

.prab-reading-time svg {
	width: 14px;
	height: 14px;
	opacity: 0.7;
}

.prab-read-more {
	font-size: var(--text-body-md, 13px);
	font-weight: 500;
	color: var(--color-brand-primary, #3b82f6);
	display: flex;
	align-items: center;
	gap: 4px;
	transition: gap var(--transition-normal, 200ms ease-out);
}

.prab-post-card:hover .prab-read-more {
	gap: 8px;
}

.prab-read-more svg {
	width: 16px;
	height: 16px;
}

/* ===== View All Link ===== */
.prab-view-all {
	text-align: center;
	margin-top: var(--spacing-2xl, 48px);
}

.prab-view-all a {
	display: inline-flex;
	align-items: center;
	gap: var(--spacing-sm, 8px);
	padding: var(--spacing-md, 16px) var(--spacing-xl, 32px);
	background: transparent;
	border: 1px solid var(--color-border-default, #374151);
	border-radius: var(--radius-md, 8px);
	color: var(--color-text-primary, #f9fafb);
	font-size: var(--text-body-md, 13px);
	font-weight: 500;
	text-decoration: none;
	transition: border-color var(--transition-normal, 200ms ease-out),
	            background var(--transition-normal, 200ms ease-out);
}

.prab-view-all a:hover {
	border-color: var(--color-brand-primary, #3b82f6);
	background: rgba(59, 130, 246, 0.08);
}

.prab-view-all a:focus-visible {
	outline: var(--focus-width, 2px) solid var(--focus-color, var(--color-brand-primary, #3b82f6));
	outline-offset: var(--focus-offset, 2px);
	box-shadow: var(--focus-shadow, 0 0 0 4px rgba(59, 130, 246, 0.15));
}

/* ===== Loading Skeleton ===== */
.prab-skeleton {
	background: linear-gradient(
		90deg,
		var(--color-bg-secondary, #1f2937) 25%,
		var(--color-bg-tertiary, #374151) 50%,
		var(--color-bg-secondary, #1f2937) 75%
	);
	background-size: 200% 100%;
	animation: prab-shimmer 1.5s infinite;
	border-radius: var(--radius-sm, 4px);
}

@keyframes prab-shimmer {
	0%   { background-position: 200% 0; }
	100% { background-position: -200% 0; }
}

.prab-skeleton-image   { height: 180px; border-radius: var(--radius-md, 8px) var(--radius-md, 8px) 0 0; }
.prab-skeleton-badge   { width: 60px; height: 20px; }
.prab-skeleton-title   { height: 22px; width: 85%; margin-bottom: 8px; }
.prab-skeleton-title-2 { height: 22px; width: 60%; margin-bottom: 12px; }
.prab-skeleton-text    { height: 16px; width: 100%; margin-bottom: 6px; }
.prab-skeleton-text-2  { height: 16px; width: 75%; }

/* ===== Empty State ===== */
.prab-empty-state {
	text-align: center;
	padding: var(--spacing-4xl, 80px) var(--spacing-md, 16px);
	background: var(--color-bg-secondary, #1f2937);
	border: 1px solid var(--color-border-default, #374151);
	border-radius: var(--radius-md, 8px);
}

.prab-empty-state svg {
	width: 64px;
	height: 64px;
	color: var(--color-text-tertiary, #9ca3af);
	margin-bottom: var(--spacing-md, 16px);
	opacity: 0.5;
}

.prab-empty-state h3 {
	font-size: var(--text-h4, 20px);
	font-weight: var(--text-h4-weight, 600);
	color: var(--color-text-primary, #f9fafb);
	margin-bottom: var(--spacing-sm, 8px);
}

.prab-empty-state p {
	font-size: var(--text-body-md, 13px);
	color: var(--color-text-secondary, #d1d5db);
	margin: 0;
}

/* ===== Error State ===== */
.prab-error-state {
	text-align: center;
	padding: var(--spacing-2xl, 48px) var(--spacing-md, 16px);
	color: var(--color-text-secondary, #d1d5db);
	font-size: var(--text-body-md, 13px);
}

/* ===== Responsive ===== */
@media (max-width: 479px) {
	.prab-posts-grid {
		grid-template-columns: 1fr;
	}
	.prab-widget-header h2 {
		font-size: var(--text-h3, 24px);
	}
	.prab-posts-widget {
		padding: var(--spacing-2xl, 48px) var(--spacing-md, 16px);
	}
}

@media (min-width: 480px) and (max-width: 767px) {
	.prab-posts-grid {
		grid-template-columns: 1fr;
	}
}