/**
 * Grid View Extension - CSS Styles
 * Card layout for FreshRSS
 */

/* ============================================
   Grid Toggle & Refresh Buttons
   ============================================ */

.read_grid,
[data-grid-toggle] {
	padding: 0.25rem 0.5rem;
	display: inline-flex;
	font-size: 1.25rem;
	border: 1px solid var(--frss-border-color, #ddd);
	border-radius: 4px;
	align-items: center;
	justify-content: center;
	margin-left: 0.5rem;
	cursor: pointer;
	transition: background-color 0.2s ease, color 0.2s ease;
	text-decoration: none;
}

.read_grid:hover,
[data-grid-toggle]:hover {
	background-color: var(--frss-background-alt, #f0f0f0);
}

.read_grid.active,
[data-grid-toggle].active {
	background-color: var(--frss-accent-color, #4a90d9) !important;
	color: #fff !important;
	border-color: var(--frss-accent-color, #4a90d9);
}

/* ============================================
   Grid Container - Applied when view mode is 'grid'
   ============================================ */

#stream.grid {
	padding: 1.25rem;
	display: grid;
	max-width: 100%;
	grid-template-columns: repeat(var(--gridview-columns, 3), 1fr);
	gap: 1.25rem;
	box-sizing: border-box;
}

/* ============================================
   Date Separators / Day Dividers
   ============================================ */

#stream.grid > .gridview-header {
	margin: 0 0 0.25rem 0;
	padding: 0.75rem 0;
	display: flex;
	width: 100%;
	color: var(--frss-text-color, #333);
	font-size: 1.25rem;
	border-bottom: 2px solid var(--frss-accent-color, #4a90d9);
	grid-column: 1 / -1;
	font-weight: 700;
	align-items: baseline;
	gap: 0.75rem;
}

.gridview-header-name {
	flex-shrink: 0;
}

.gridview-header-new-articles {
	display: none;
	color: var(--frss-accent-color, #4a90d9);
	font-size: 0.8rem;
	font-weight: 500;
	cursor: pointer;
	white-space: nowrap;
}

.gridview-header-new-articles.visible {
	display: inline;
}

.gridview-header-new-articles:hover {
	text-decoration: underline;
}

/* Hide the native FreshRSS new-article banner in grid mode */
#stream.grid > #new-article,
body.gridview-active #new-article {
	display: none !important;
}

#stream.grid > .transition {
	display: none;
}

#stream.grid .day,
#stream.grid .date-separator,
#stream.grid .flux_date,
#stream.grid > .day-title,
#stream.grid > h2,
#stream.grid > h3 {
	margin: 0.5rem 0;
	padding: 0.75rem 0;
	background: transparent;
	display: flex;
	width: 100%;
	color: var(--frss-text-muted, #666);
	font-size: 0.875rem;
	border-bottom: 1px solid var(--frss-border-color, #e0e0e0);
	grid-column: 1 / -1;  /* Span full width */
	font-weight: 600;
	align-items: center;
}

#stream.grid .day::before,
#stream.grid .date-separator::before {
	content: "📅 ";
	margin-right: 0.5rem;
}

/* ============================================
   Card Styling
   ============================================ */

#stream.grid .flux {
	margin: 0;
	/* Reset padding/margin that FreshRSS Reader view may add to .flux */
	padding: 0;
	background: var(--frss-background-color, #fff);
	display: flex;
	height: 100%;
	border: 1px solid var(--frss-border-color, #e0e0e0);
	border-radius: 12px;
	flex-direction: column;
	overflow: hidden;
	isolation: isolate;
	transition: box-shadow 0.2s ease, border 0.2s ease;
	cursor: pointer;
	min-height: 482px;
}

#stream.grid .flux:hover {
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Override FreshRSS default .not_read border in grid mode.
   The actual unread indicator is managed via inline styles
   by syncFluxVisualState() in grid.js. */

#stream.grid .flux.not_read {
	border-left: 1px solid var(--frss-border-color, #e0e0e0);
}

/* Override .current styling in grid mode. FreshRSS sets .current on the
   most recently interacted article; the box-shadow looked like an unwanted
   full blue border when switching from list view to grid view. */

#stream.grid .flux.current {
	box-shadow: none;
}

#stream.grid .flux.current:hover {
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* ============================================
   Card Image / Thumbnail
   ============================================ */

#stream.grid .flux .flux_header {
	margin: 0;
	padding: 0;
	background: none;
	display: flex;
	border: none;
	flex-direction: column;
	position: relative;
}

#stream.grid .flux .card-thumbnail {
	background: var(--frss-background-alt, #f5f5f5);
	display: flex;
	width: 100%;
	height: 394px;
	border-radius: inherit;
	overflow: hidden;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	border-bottom-left-radius: 0;
	border-bottom-right-radius: 0;
	will-change: transform;
}

#stream.grid .flux .card-thumbnail img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.3s ease;
}

#stream.grid .flux:hover .card-thumbnail img {
	transform: scale(1.05);
}

#stream.grid .flux .card-thumbnail .no-image {
	background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
	display: flex;
	width: 100%;
	height: 100%;
	color: #fff;
	font-size: 3rem;
	align-items: center;
	justify-content: center;
	opacity: 0.7;
}

#stream.grid .flux .card-thumbnail .placeholder-image {
	width: 100%;
	height: 100%;
	object-fit: cover;
	filter: brightness(0.85) saturate(0.9);
}

#stream.grid .flux:hover .card-thumbnail .placeholder-image {
	filter: brightness(0.9) saturate(1);
}

/* ============================================
   Card Content Area
   ============================================ */

#stream.grid .flux .card-content {
	padding: 1rem;
	display: flex;
	flex-direction: column;
	flex-grow: 1;
	position: relative;
}

#stream.grid .flux .card-meta {
	display: flex;
	color: var(--frss-text-muted, #666);
	font-size: 0.75rem;
	align-items: center;
	gap: 0.5rem;
	margin-bottom: 0.5rem;
}

#stream.grid .flux .card-meta .favicon {
	width: 16px;
	height: 16px;
	border-radius: 2px;
}

#stream.grid .flux .card-meta .feed-name {
	font-weight: 500;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	max-width: 60%;
}

#stream.grid .flux .card-meta .reading-time {
	margin-left: auto;
	white-space: nowrap;
}

#stream.grid .flux .card-title {
	margin: 0 0 0.5rem 0;
	color: var(--frss-text-color, #333);
	font-size: 1rem;
	font-weight: 600;
	line-height: 1.4;
	overflow-wrap: break-word;
}

#stream.grid .flux .card-title a {
	color: inherit;
	text-decoration: none;
}

#stream.grid .flux .card-title a:hover {
	color: var(--frss-accent-color, #4a90d9);
}

#stream.grid .flux .card-summary-wrapper {
	position: relative;
	flex-grow: 1;
	margin: 0;
	cursor: pointer;
}

#stream.grid .flux .card-summary {
	margin: 0;
	color: var(--frss-text-muted, #666);
	font-size: 0.875rem;
	line-height: 1.5;
	overflow: hidden;
}

/* Scrollable tooltip panel shown on hover — fills .card-content area */
#stream.grid .flux .card-summary-tooltip {
	padding: 0.75rem 1rem;
	background: var(--frss-background-color, #fff);
	display: none;
	border-radius: 0;
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	overflow-y: auto;
	z-index: 100;
}

#stream.grid .flux .card-summary-tooltip p {
	margin: 0;
	color: var(--frss-text-color, #333);
	font-size: 0.875rem;
	line-height: 1.5;
	padding-bottom: 1rem;
}

#stream.grid .flux .card-summary-tooltip.expanded {
	display: block;
}

#stream.grid .flux .card-date {
	color: var(--frss-text-muted, #888);
	font-size: 0.75rem;
	margin-top: auto;
	padding-top: 0.75rem;
}

/* ============================================
   Hide default elements in grid view
   ============================================ */

#stream.grid .flux .flux_content,
#stream.grid .flux .item.manage,
#stream.grid .flux .item.link,
#stream.grid .flux > .flux_header > .horizontal-list {
	display: none !important;
}

/* Hide the FreshRSS prev/up/next arrow buttons in grid mode */
body.gridview-active #nav_entries {
	display: none !important;
}

/* Ensure grid card wrapper fills the flux without extra spacing
   (Reader view may apply padding/margin to .flux children) */

#stream.grid .flux .gridview-card-content {
	display: flex;
	flex-direction: column;
	flex-grow: 1;
}

/* ============================================
   Card Actions (on hover)
   ============================================ */

#stream.grid .flux .card-actions {
	padding: 0.75rem 1rem;
	background: rgba(0, 0, 0, 0.55);
	display: flex;
	border-top: none;
	gap: 0.5rem;
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	backdrop-filter: blur(4px);
	opacity: 0;
	transition: opacity 0.2s ease;
	z-index: 10;
}

#stream.grid .flux.card-selected .card-actions {
	opacity: 1;
}

#stream.grid .flux .card-actions button,
#stream.grid .flux .card-actions a {
	padding: 0.25rem 0.5rem;
	background: none;
	color: rgba(255, 255, 255, 0.9);
	font-size: 0.75rem;
	border: none;
	border-radius: 4px;
	cursor: pointer;
	transition: background-color 0.2s ease, color 0.2s ease;
}

#stream.grid .flux .card-actions button:hover,
#stream.grid .flux .card-actions a:hover {
	background: rgba(255, 255, 255, 0.2);
	color: #fff;
}

#stream.grid .flux.favorite .card-actions .action-star {
	color: #f5a623;
}

/* ============================================
   Share Button in Cards
   ============================================ */

#stream.grid .flux .card-actions .action-share {
	padding: 0.25rem 0.5rem;
	background: none;
	display: inline-flex;
	color: rgba(255, 255, 255, 0.9);
	font-size: 0.85rem;
	border: none;
	border-radius: 4px;
	align-items: center;
	justify-content: center;
	cursor: pointer;
}

#stream.grid .flux .card-actions .action-share:hover {
	background: rgba(255, 255, 255, 0.2);
	color: #fff;
}

#stream.grid .flux .card-actions .action-share .icon {
	width: 16px;
	height: 16px;
	opacity: 0.7;
}

#stream.grid .flux .card-actions .action-share:hover .icon {
	opacity: 1;
	filter: brightness(0) invert(1);
}

/* ============================================
   Hidden Original Content (for FreshRSS functionality)
   ============================================ */

#stream.grid .flux .gridview-original-content {
	display: none !important;
}

/* But show the share dropdown when it's activated via :target */
#stream.grid .flux .gridview-original-content .dropdown-menu,
#stream.grid .flux .gridview-original-content .item.share .dropdown-menu {
	display: none;
}

/* When dropdown is targeted, show it positioned relative to the card */
#stream.grid .flux .gridview-original-content .dropdown-target:target ~ .dropdown-menu {
	padding: 0.5rem 0;
	background: var(--frss-background-color, #fff);
	display: block !important;
	border: 1px solid var(--frss-border-color, #ddd);
	border-radius: 4px;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
	position: fixed;
	z-index: 9999;
	min-width: 180px;
}

/* ============================================
   Prevent Flash of List View (FOLV)
   Hide untransformed flux entries in grid mode
   so the default list layout never shows.
   ============================================ */

#stream.grid .flux:not(.gridview-transformed) {
	margin: 0;
	padding: 0;
	height: 0;
	border: none;
	visibility: hidden;
	min-height: 0;
	overflow: hidden;
}

/* When grid mode is active (body flag), hide the raw stream content
   even before JS adds .grid to a newly replaced #stream element.
   This prevents the brief flash of list view during AJAX navigation. */

body.gridview-active #stream:not(.grid) {
	visibility: hidden;
	min-height: 200px;
}

/* ============================================
   Loading Skeleton / Spinner
   Shown while grid items are being transformed
   ============================================ */

.gridview-loading-overlay {
	padding: 0;
	display: flex;
	width: 100%;
	grid-column: 1 / -1;
	flex-wrap: wrap;
	gap: 1.25rem;
}

.gridview-skeleton-card {
	background: var(--frss-background-color, #fff);
	max-width: calc(100% / var(--gridview-columns, 3) - 1.25rem + 1.25rem / var(--gridview-columns, 3));
	border: 1px solid var(--frss-border-color, #e0e0e0);
	border-radius: 12px;
	flex: 1 1 calc(100% / var(--gridview-columns, 3) - 1.25rem);
	min-width: 200px;
	overflow: hidden;
	min-height: 482px;
}

.gridview-skeleton-card .skeleton-thumbnail {
	background: linear-gradient(90deg,
	var(--frss-background-alt, #f0f0f0) 25%,
	var(--frss-border-color, #e8e8e8) 50%,
	var(--frss-background-alt, #f0f0f0) 75%);
	width: 100%;
	height: 394px;
	background-size: 200% 100%;
	animation: gridview-shimmer 1.5s infinite;
}

.gridview-skeleton-card .skeleton-content {
	padding: 1rem;
	display: flex;
	flex-direction: column;
	gap: 0.625rem;
}

.gridview-skeleton-card .skeleton-line {
	background: linear-gradient(90deg,
	var(--frss-background-alt, #f0f0f0) 25%,
	var(--frss-border-color, #e8e8e8) 50%,
	var(--frss-background-alt, #f0f0f0) 75%);
	height: 0.875rem;
	border-radius: 4px;
	background-size: 200% 100%;
	animation: gridview-shimmer 1.5s infinite;
}

.gridview-skeleton-card .skeleton-line.short {
	width: 40%;
}

.gridview-skeleton-card .skeleton-line.medium {
	width: 75%;
}

.gridview-skeleton-card .skeleton-line.long {
	width: 100%;
}

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

	100% { background-position: -200% 0; }
}

/* ============================================
   Toast Notification
   ============================================ */

@keyframes gridview-toast-fade {
	0% { opacity: 0; transform: translateX(-50%) translateY(10px); }

	10% { opacity: 1; transform: translateX(-50%) translateY(0); }

	90% { opacity: 1; transform: translateX(-50%) translateY(0); }

	100% { opacity: 0; transform: translateX(-50%) translateY(-10px); }
}

/* ============================================
   Mobile Bottom Bar (Menu Button)
   ============================================ */

.gridview-mobile-bar {
	padding: 0.5rem;
	display: none;
	position: fixed;
	bottom: 0;
	left: 0;
	z-index: 1000;
	padding-bottom: calc(0.5rem + env(safe-area-inset-bottom, 0px));
}

body.gridview-active .gridview-mobile-bar {
	display: block;
}

.gridview-mobile-menu-btn {
	background: var(--frss-background-color, #fff);
	display: flex;
	width: 2.75rem;
	height: 2.75rem;
	color: var(--frss-text-color, #333);
	border: 1px solid var(--frss-border-color, #ddd);
	border-radius: 50%;
	box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
	align-items: center;
	justify-content: center;
	cursor: pointer;
	transition: background-color 0.2s ease, box-shadow 0.2s ease;
	-webkit-tap-highlight-color: transparent;
}

.gridview-mobile-menu-btn:active {
	background: var(--frss-background-alt, #f0f0f0);
	box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}


/* ============================================
   Sticky Nav Bar in Grid Mode
   Keep the FreshRSS toolbar visible while scrolling
   in grid mode (Normal and Reader views).

   FreshRSS uses display:table on #global with .aside as
   a table-cell. position:sticky cannot work inside a table
   layout, so we:
   1. Switch #global from table to flex layout
   2. Wrap .nav_menu + #stream in a scroll container via JS
	  (see grid.js: wrapContentForStickyNav)
   3. Make .nav_menu sticky inside that scroll container
   ============================================ */

body.gridview-sticky-nav #global {
	display: flex;
	flex-direction: row;
}

body.gridview-sticky-nav #global > .aside {
	display: block;
	flex-shrink: 0;
}

body.gridview-sticky-nav .gridview-scroll-wrapper {
	flex: 1 1 0%;
	min-width: 0;
	overflow-y: auto;
}

body.gridview-sticky-nav .nav_menu {
	position: sticky;
	top: 0;
	z-index: 50;
	background: var(--frss-background-color, #fff);
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

@media (prefers-color-scheme: dark) {
	body.gridview-sticky-nav .nav_menu {
		background: var(--frss-background-color, #1e1e1e);
		box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
	}
}

.theme-dark body.gridview-sticky-nav .nav_menu,
body.theme-dark.gridview-sticky-nav .nav_menu,
body.gridview-sticky-nav .theme-dark .nav_menu,
[data-theme="dark"] body.gridview-sticky-nav .nav_menu,
body.gridview-sticky-nav[data-theme="dark"] .nav_menu {
	background: var(--frss-background-color, #1e1e1e);
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* ============================================
   Responsive Breakpoints
   ============================================ */

@media (max-width: 1200px) {
	#stream.grid {
		grid-template-columns: repeat(min(var(--gridview-columns, 3), 3), 1fr);
	}
}

@media (max-width: 900px) {
	#stream.grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 1rem;
		padding: 1rem;
	}
}

@media (max-width: 600px) {
	#stream.grid {
		grid-template-columns: 1fr;
		gap: 0.75rem;
		padding: 0.75rem;
	}

	#stream.grid .flux {
		min-height: 419px;
	}

	#stream.grid .flux .card-thumbnail {
		height: 328px;
	}
}

/* ============================================
   Dark Theme Support
   ============================================ */

@media (prefers-color-scheme: dark) {
	#stream.grid .flux {
		background: var(--frss-background-color, #1e1e1e);
		border-color: var(--frss-border-color, #333);
	}

	#stream.grid .flux:hover {
		box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
	}

	#stream.grid .flux .card-thumbnail .no-image {
		background: linear-gradient(135deg, #434343 0%, #000 100%);
	}

	#stream.grid .flux .card-summary-tooltip {
		background: var(--frss-background-color, #1e1e1e);
		border-color: var(--frss-border-color, #333);
		box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
	}
}

/* Support FreshRSS dark themes */
.theme-dark #stream.grid .flux,
[data-theme="dark"] #stream.grid .flux {
	background: var(--frss-background-color, #1e1e1e);
	border-color: var(--frss-border-color, #333);
}

.theme-dark #stream.grid .flux:hover,
[data-theme="dark"] #stream.grid .flux:hover {
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.theme-dark #stream.grid .flux .card-summary-tooltip,
[data-theme="dark"] #stream.grid .flux .card-summary-tooltip {
	background: var(--frss-background-color, #1e1e1e);
	border-color: var(--frss-border-color, #333);
	box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: dark) {
	.gridview-mobile-menu-btn {
		background: var(--frss-background-color, #1e1e1e);
		color: var(--frss-text-color, #e0e0e0);
		border-color: var(--frss-border-color, #333);
		box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
	}
}

@media (prefers-color-scheme: dark) {
	.gridview-skeleton-card {
		background: var(--frss-background-color, #1e1e1e);
		border-color: var(--frss-border-color, #333);
	}
}

.theme-dark .gridview-mobile-menu-btn,
[data-theme="dark"] .gridview-mobile-menu-btn {
	background: var(--frss-background-color, #1e1e1e);
	color: var(--frss-text-color, #e0e0e0);
	border-color: var(--frss-border-color, #333);
	box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.theme-dark .gridview-skeleton-card,
[data-theme="dark"] .gridview-skeleton-card {
	background: var(--frss-background-color, #1e1e1e);
	border-color: var(--frss-border-color, #333);
}