/* ═══════════════════════════════════════════════════════════
   Theseus — Layout Stylesheet
   App shell: sidebar, content area, toolbar, mobile nav
   ═══════════════════════════════════════════════════════════ */

/* ── App Shell ─────────────────────────────────────────── */
.app {
	display: flex;
	min-height: 100vh;
}

/* ── Sidebar ───────────────────────────────────────────── */
.sidebar {
	width: var(--sidebar-width);
	background: var(--bg-elevated);
	border-right: 1px solid var(--border);
	padding: var(--space-6) 0;
	display: flex;
	flex-direction: column;
	position: fixed;
	top: 0;
	left: 0;
	bottom: 0;
	z-index: 100;
	overflow-y: auto;
}

.sidebar-brand {
	padding: 0 var(--space-5);
	margin-bottom: var(--space-8);
	font-family: var(--font-reading);
	font-size: var(--text-2xl);
	font-weight: 400;
	letter-spacing: -0.02em;
	display: flex;
	align-items: center;
	gap: var(--space-3);
}

.sidebar-brand-icon {
	flex-shrink: 0;
	width: 28px;
	height: 28px;
	color: var(--text-primary);
	display: block;
}

.sidebar-nav {
	flex: 1;
}

.sidebar-section {
	padding: 0 var(--space-3);
	margin-bottom: var(--space-6);
}

.sidebar-section-label {
	font-family: var(--font-ui);
	font-size: var(--text-xs);
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.15em;
	color: var(--text-muted);
	padding: 0 var(--space-2);
	margin-bottom: var(--space-2);
}

.sidebar-link {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	padding: var(--space-2) var(--space-3);
	border-radius: var(--radius-md);
	font-family: var(--font-ui);
	font-size: var(--text-sm);
	color: var(--text-secondary);
	transition:
		background var(--duration-fast) ease,
		color var(--duration-fast) ease;
}
.sidebar-link:hover {
	background: var(--bg-inset);
	color: var(--text-primary);
}
.sidebar-link.active {
	color: var(--text-primary);
	font-weight: 500;
	background: var(--surface);
}

.sidebar-link-count {
	margin-left: auto;
	font-size: var(--text-xs);
	color: var(--text-muted);
}

.sidebar-divider {
	height: 1px;
	background: var(--border);
	margin: var(--space-4) var(--space-5);
}

.sidebar-footer {
	padding: 0 var(--space-3);
	margin-top: auto;
}

/* ── Theme Selector Buttons ───────────────────────────── */
.theme-btn-group {
	display: flex;
	gap: var(--space-2);
	padding: 0 var(--space-2);
}
.theme-btn {
	width: 24px;
	height: 24px;
	border-radius: 50%;
	border: 2px solid var(--border);
	cursor: pointer;
	padding: 0;
	transition: box-shadow var(--duration-fast) ease;
}
.theme-btn:hover {
	box-shadow: 0 0 0 2px var(--accent);
}
.theme-btn[data-theme="default"] {
	background: var(--color-parchment);
}
.theme-btn[data-theme="sepia"] {
	background: var(--color-sepia);
}
.theme-btn[data-theme="dark"] {
	background: var(--color-deep);
}
.theme-btn[data-theme="high-contrast"] {
	background: #ffffff;
	border-color: #000000;
}

/* ── Main Content ──────────────────────────────────────── */
.main {
	flex: 1;
	margin-left: var(--sidebar-width);
	min-width: 0;
}

.content {
	max-width: var(--max-width-page);
	margin: 0 auto;
	padding: var(--space-8) var(--space-6);
}

.content-full {
	padding: var(--space-4) var(--space-4);
}

/* Desktop: hide server-rendered fallback once JS has upgraded the custom element */
@media (min-width: 769px) {
	theseus-reader-list:defined ~ .reader-server-content {
		display: none;
	}
}

/* ── Content Header ────────────────────────────────────── */
.content-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: var(--space-6);
	flex-wrap: wrap;
	gap: var(--space-3);
	view-transition-name: page-header;
}

.content-header h1 {
	font-size: var(--text-2xl);
}

.content-header-meta {
	font-family: var(--font-ui);
	font-size: var(--text-sm);
	color: var(--text-muted);
}

/* ── Content Header Title Group ────────────────────────── */
.content-header-title-group {
	display: flex;
	align-items: baseline;
	gap: var(--space-3);
	min-width: 0;
}

/* ── Content Header Search (quick-search box) ──────────── */
.content-header-search {
	position: relative;
	width: 260px;
	flex-shrink: 0;
	margin-left: auto;
}

/* Before JS defines the custom element, hide it and show the fallback form */
.content-header-search theseus-search-box:not(:defined) {
	display: none;
}

/* Once JS defines the element, hide the server-rendered fallback */
.content-header-search theseus-search-box:defined + .search-fallback {
	display: none;
}

.search-fallback {
	display: flex;
}

.search-fallback input[type="search"] {
	width: 100%;
	padding: var(--space-2) var(--space-3);
	font-family: var(--font-ui);
	font-size: var(--text-sm);
	color: var(--text-primary);
	background: var(--bg-elevated);
	border: 1px solid var(--border);
	border-radius: var(--radius-md);
	box-sizing: border-box;
}

.search-fallback input[type="search"]:focus {
	outline: none;
	border-color: var(--accent);
	box-shadow: 0 0 0 3px var(--focus-ring);
}

.search-fallback input[type="search"]::placeholder {
	color: var(--text-muted);
}

/* ── Toolbar ───────────────────────────────────────────── */
.toolbar {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	margin-bottom: var(--space-6);
	flex-wrap: wrap;
}

.toolbar-group {
	display: flex;
	align-items: center;
	gap: var(--space-2);
}

.toolbar-spacer {
	flex: 1;
}

.toolbar select {
	padding: var(--space-1) var(--space-3);
	font-family: var(--font-ui);
	font-size: var(--text-sm);
	color: var(--text-secondary);
	background: var(--bg-elevated);
	border: 1px solid var(--border);
	border-radius: var(--radius-md);
	cursor: pointer;
	max-width: 100%;
}

/* ── Card Grid ─────────────────────────────────────────── */
.card-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
	gap: var(--space-5);
}

/* ── Card List ─────────────────────────────────────────── */
.card-list {
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
}

.card-list-item {
	display: flex;
	gap: var(--space-4);
	padding: var(--space-3) var(--space-4);
	background: var(--bg-card);
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-md);
	transition: background var(--duration-fast) ease;
	align-items: center;
}
.card-list-item:hover {
	background: var(--bg-elevated);
}

.card-list-item-thumb {
	width: 64px;
	height: 64px;
	border-radius: var(--radius-sm);
	object-fit: cover;
	flex-shrink: 0;
}

/* <picture> wrapper in flex list items: inherit sizing from child <img> */
picture:has(> .card-list-item-thumb) {
	width: 64px;
	height: 64px;
	flex-shrink: 0;
	border-radius: var(--radius-sm);
	overflow: hidden;
}
picture > .card-list-item-thumb {
	width: 100%;
	height: 100%;
	border-radius: 0; /* parent <picture> handles rounding via overflow */
}

.card-list-item-body {
	flex: 1;
	min-width: 0;
}

/* Inner link wrapper for card-list-item (when used with card-menu) */
.card-list-item-link {
	display: flex;
	gap: var(--space-4);
	flex: 1;
	min-width: 0;
	text-decoration: none;
	color: inherit;
	align-items: center;
}

.card-list-item-title {
	font-size: var(--text-base);
	font-weight: 400;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

/* ── Pagination ────────────────────────────────────────── */
.pagination {
	display: flex;
	justify-content: center;
	gap: var(--space-2);
	padding: var(--space-8) 0;
}

.pagination a,
.pagination span {
	padding: var(--space-2) var(--space-3);
	font-family: var(--font-ui);
	font-size: var(--text-sm);
	border-radius: var(--radius-md);
}
.pagination a:hover {
	background: var(--bg-inset);
}
.pagination .active {
	background: var(--accent);
	color: var(--text-inverse);
}

/* ── Save FAB ──────────────────────────────────────────── */
.save-fab {
	position: fixed;
	bottom: var(--space-6);
	right: var(--space-6);
	width: 56px;
	height: 56px;
	border-radius: 50%;
	background: var(--accent);
	color: var(--text-inverse);
	border: none;
	font-size: 1.5rem;
	cursor: pointer;
	box-shadow: 0 4px 16px rgba(194, 85, 58, 0.3);
	transition:
		transform var(--duration-fast) var(--ease-out),
		box-shadow var(--duration-fast) var(--ease-out);
	z-index: 50;
	display: flex;
	align-items: center;
	justify-content: center;
	view-transition-name: save-fab;
}
.save-fab:hover {
	transform: scale(1.05);
	box-shadow: 0 6px 24px rgba(194, 85, 58, 0.4);
}

/* ── Mobile Bottom Nav ─────────────────────────────────── */
.mobile-nav {
	display: none;
	position: fixed;
	bottom: 0;
	left: 0;
	right: 0;
	background: var(--bg-elevated);
	border-top: 1px solid var(--border);
	padding: var(--space-2) env(safe-area-inset-right, 0px)
		calc(var(--space-2) + env(safe-area-inset-bottom, 0px)) env(safe-area-inset-left, 0px);
	z-index: 100;
	view-transition-name: mobile-nav;
}

.mobile-nav-items {
	display: flex;
	justify-content: space-around;
}

.mobile-nav-item {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--space-1);
	padding: var(--space-1) var(--space-3);
	border-radius: var(--radius-md);
	font-family: var(--font-ui);
	font-size: var(--text-xs);
	color: var(--text-muted);
	text-decoration: none;
}
.mobile-nav-item.active {
	color: var(--accent);
	background: var(--surface);
}

.mobile-nav-icon {
	display: block;
	width: 18px;
	height: 18px;
}

/* ── Sidebar Collapse ─────────────────────────────────── */
.sidebar-collapse-btn {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	border: 1px solid var(--border);
	border-radius: var(--radius-md);
	background: var(--bg-elevated);
	color: var(--text-muted);
	cursor: pointer;
	font-size: var(--text-sm);
	transition:
		color var(--duration-fast) ease,
		background var(--duration-fast) ease;
	margin: var(--space-4) auto 0;
	flex-shrink: 0;
}
.sidebar-collapse-btn:hover {
	color: var(--text-primary);
	background: var(--bg-inset);
}

/* Only animate after initial state is set */
.app.sidebar-ready .sidebar,
.app.sidebar-ready .main {
	transition:
		width var(--duration-normal) var(--ease-out),
		margin-left var(--duration-normal) var(--ease-out);
}

.sidebar-link-icon {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 18px;
	height: 18px;
	flex-shrink: 0;
}

.sidebar-link-label,
.sidebar-brand-label {
	transition: opacity var(--duration-fast) ease;
}

/* Collapsed state */
.app.sidebar-collapsed .sidebar {
	width: var(--sidebar-width-collapsed);
	overflow: visible;
}
.app.sidebar-collapsed .main {
	margin-left: var(--sidebar-width-collapsed);
}
.app.sidebar-collapsed .sidebar-brand {
	justify-content: center;
	padding: 0;
	margin-bottom: var(--space-6);
}
.app.sidebar-collapsed .sidebar-brand-label {
	display: none;
}
.app.sidebar-collapsed .sidebar-brand-icon {
	width: 24px;
	height: 24px;
}
.app.sidebar-collapsed .sidebar-nav .sidebar-section {
	padding: 0 var(--space-1);
}
.app.sidebar-collapsed .sidebar-link {
	justify-content: center;
	padding: var(--space-2);
	gap: 0;
	position: relative;
}
.app.sidebar-collapsed .sidebar-link-label,
.app.sidebar-collapsed .sidebar-link-count {
	display: none;
}

.app.sidebar-collapsed .sidebar-link-icon {
	width: 20px;
	height: 20px;
}
.app.sidebar-collapsed .sidebar-nav .sidebar-section:nth-child(2) {
	display: none;
}
.app.sidebar-collapsed .sidebar-section-label,
.app.sidebar-collapsed .sidebar-divider {
	display: none;
}
.app.sidebar-collapsed .sidebar-footer .sidebar-section {
	display: none;
}
.app.sidebar-collapsed .sidebar-footer {
	padding: 0 var(--space-1);
}
.app.sidebar-collapsed .sidebar-footer .sidebar-link {
	justify-content: center;
	padding: var(--space-2);
	gap: 0;
}
.app.sidebar-collapsed .sidebar-footer .sidebar-link .sidebar-link-label {
	display: none;
}

/* Tooltip on hover in collapsed mode */
.app.sidebar-collapsed .sidebar-link:hover::after {
	content: attr(title);
	position: absolute;
	left: calc(100% + var(--space-2));
	top: 50%;
	transform: translateY(-50%);
	background: var(--bg-elevated);
	color: var(--text-primary);
	padding: var(--space-1) var(--space-2);
	border-radius: var(--radius-sm);
	font-size: var(--text-xs);
	white-space: nowrap;
	box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
	border: 1px solid var(--border);
	z-index: 200;
	pointer-events: none;
}

.app.sidebar-collapsed .sidebar-collapse-btn {
	transform: rotate(180deg);
}

/* Flash prevention: if sidebar-will-collapse is set on html, apply collapsed layout immediately */
.sidebar-will-collapse .sidebar {
	width: var(--sidebar-width-collapsed);
}
.sidebar-will-collapse .main {
	margin-left: var(--sidebar-width-collapsed);
}
.sidebar-will-collapse .sidebar-brand-label,
.sidebar-will-collapse .sidebar-link-label,
.sidebar-will-collapse .sidebar-link-count {
	display: none;
}

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 768px) {
	.sidebar {
		display: none;
	}
	.main {
		margin-left: 0;
	}
	.mobile-nav {
		display: block;
	}
	.content {
		padding: calc(var(--space-4) + env(safe-area-inset-top, 0px))
			calc(var(--space-4) + env(safe-area-inset-right, 0px))
			calc(var(--space-16) + env(safe-area-inset-bottom, 0px))
			calc(var(--space-4) + env(safe-area-inset-left, 0px));
	}
	.content-full {
		padding: calc(var(--space-4) + env(safe-area-inset-top, 0px))
			calc(var(--space-4) + env(safe-area-inset-right, 0px))
			calc(var(--space-16) + env(safe-area-inset-bottom, 0px))
			calc(var(--space-4) + env(safe-area-inset-left, 0px));
	}
	.card-grid {
		grid-template-columns: 1fr;
	}
	.content-header-search {
		display: none;
	}
	.app.sidebar-collapsed .main {
		margin-left: 0;
	}
	.app.sidebar-collapsed .sidebar {
		display: none;
	}
	.save-fab {
		bottom: calc(var(--space-16) + env(safe-area-inset-bottom, 0px) + var(--space-2));
	}
	.toolbar {
		flex-wrap: nowrap;
		overflow: hidden;
	}
	.toolbar > form {
		min-width: 0;
	}
	.toolbar-group {
		flex-wrap: nowrap;
		overflow-x: auto;
		min-width: 0;
		-webkit-overflow-scrolling: touch;
	}
	.toolbar select {
		flex: 1 1 0;
		min-width: 0;
		min-height: 44px;
	}
}

@media (min-width: 769px) and (max-width: 1024px) {
	.card-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

/* ── Card Menu ──────────────────────────────────────── */
.card {
	position: relative;
}

.card-title-clickable {
	cursor: pointer;
}
.card-title-clickable:hover {
	color: var(--accent);
}

.card-link {
	color: inherit;
	text-decoration: none;
}

.card-tags,
.card-footer {
	position: relative;
	z-index: 1;
}

.card-failed .card-footer {
	z-index: 6;
}

/* ── Card Processing State ─────────────────────────────── */
.card-processing {
	position: relative;
}

.card-processing-overlay {
	position: absolute;
	inset: 0;
	background: rgba(250, 246, 241, 0.7);
	backdrop-filter: blur(3px);
	border-radius: var(--radius-lg);
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: var(--space-3);
	z-index: 5;
}
@supports (background: color-mix(in srgb, red 50%, transparent)) {
	.card-processing-overlay {
		background: color-mix(in srgb, var(--bg-page) 70%, transparent);
	}
}

.card-spinner {
	width: 28px;
	height: 28px;
	border: 2.5px solid var(--border);
	border-top-color: var(--accent);
	border-radius: 50%;
	animation: spin 800ms linear infinite;
}

@keyframes spin {
	to {
		transform: rotate(360deg);
	}
}

.card-processing-text {
	font-family: var(--font-ui);
	font-size: var(--text-xs);
	color: var(--text-muted);
	letter-spacing: 0.05em;
	transition: opacity 200ms ease;
}

/* ── Card Failed State ─────────────────────────────────── */
.card-failed {
	position: relative;
}

.card-failed-overlay {
	position: absolute;
	inset: 0;
	background: rgba(250, 246, 241, 0.85);
	backdrop-filter: blur(3px);
	border-radius: var(--radius-lg);
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: var(--space-2);
	z-index: 5;
}
@supports (background: color-mix(in srgb, red 50%, transparent)) {
	.card-failed-overlay {
		background: color-mix(in srgb, var(--bg-page) 85%, transparent);
	}
}

.card-failed-text {
	font-family: var(--font-ui);
	font-size: var(--text-xs);
	color: var(--text-muted);
	letter-spacing: 0.05em;
}

.card-failed-link {
	font-family: var(--font-ui);
	font-size: var(--text-xs);
	color: var(--accent);
	text-decoration: none;
}

.card-failed-link:hover {
	text-decoration: underline;
}

.card-failed-actions {
	display: flex;
	gap: var(--space-2);
	margin-top: var(--space-2);
}

.card-failed-btn {
	font-family: var(--font-ui);
	font-size: var(--text-xs);
	padding: var(--space-1) var(--space-3);
	border: 1px solid var(--border);
	border-radius: var(--radius-sm);
	background: var(--bg-elevated);
	color: var(--text-primary);
	cursor: pointer;
	transition:
		background 150ms ease,
		border-color 150ms ease;
}

.card-failed-btn:hover {
	background: var(--bg-inset);
	border-color: var(--text-muted);
}

.card-failed-btn:disabled {
	opacity: 0.5;
	cursor: not-allowed;
}

.card-failed-btn-danger {
	color: var(--color-error, #b83a3a);
	border-color: var(--color-error, #b83a3a);
}

.card-failed-btn-danger:hover {
	background: var(--color-error, #b83a3a);
	color: var(--text-inverse);
}

/* ── Card Blocked State ────────────────────────────────── */
.card-blocked {
	position: relative;
}

.card-blocked-overlay {
	position: absolute;
	inset: 0;
	z-index: 5;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: var(--space-2);
	background: var(--card-bg, var(--surface));
	opacity: 0.92;
	backdrop-filter: blur(3px);
	border-radius: inherit;
	padding: var(--space-4);
	text-align: center;
}

.card-blocked-icon {
	width: 32px;
	height: 32px;
	color: var(--text-muted, #888);
}

.card-blocked-text {
	font: var(--font-ui);
	font-size: 0.8rem;
	color: var(--text-muted, #888);
}

.card-blocked-link {
	font: var(--font-ui);
	font-size: 0.75rem;
	color: var(--accent, #c2553a);
	text-decoration: none;
}

.card-blocked-link:hover {
	text-decoration: underline;
}

.card-blocked .card-footer {
	z-index: 6;
	position: relative;
}

/* ── Dev Mode Accordions ───────────────────────────────── */
.dev-accordion {
	border: 1px solid var(--border);
	border-radius: var(--radius-md);
	margin-bottom: var(--space-2);
	overflow: hidden;
}

.dev-accordion-header {
	font-family: var(--font-ui);
	font-size: var(--text-xs);
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--text-muted);
	padding: var(--space-2) var(--space-3);
	cursor: pointer;
	user-select: none;
}
.dev-accordion-header:hover {
	color: var(--text-secondary);
}

.dev-accordion-body {
	padding: var(--space-2) var(--space-3) var(--space-3);
	border-top: 1px solid var(--border);
}

.dev-field {
	display: flex;
	justify-content: space-between;
	gap: var(--space-3);
	padding: var(--space-1) 0;
	font-family: var(--font-ui);
	font-size: var(--text-xs);
}

.dev-field-label {
	color: var(--text-muted);
	flex-shrink: 0;
}

.dev-field-value {
	color: var(--text-secondary);
	text-align: right;
	word-break: break-all;
	font-family: var(--font-mono);
}

@media (max-width: 480px) {
	.dev-field {
		flex-direction: column;
		gap: var(--space-1);
	}
	.dev-field-value {
		text-align: left;
	}
}

/* ── Settings Page ─────────────────────────────────────── */
.settings-form {
	max-width: 600px;
}
.settings-section {
	margin-bottom: var(--space-8);
}
.settings-section > .t-label {
	margin-bottom: var(--space-4);
}
.settings-card {
	padding: var(--space-5);
	cursor: default;
}
.settings-card:hover {
	transform: none;
	box-shadow: none;
}
.form-group {
	margin-bottom: var(--space-4);
}
.settings-shortcuts-table {
	width: 100%;
	border-collapse: collapse;
	font-family: var(--font-ui);
	font-size: var(--text-sm);
}
.settings-shortcuts-table tr {
	border-bottom: 1px solid var(--border-subtle);
}
.settings-shortcuts-table td {
	padding: var(--space-2) var(--space-3);
}
.settings-shortcuts-table td:first-child {
	white-space: nowrap;
}
.settings-shortcuts-table td:last-child {
	color: var(--text-secondary);
}
.settings-kbd {
	display: inline-block;
	padding: var(--space-1) var(--space-2);
	background: var(--bg-inset);
	border: 1px solid var(--border);
	border-radius: var(--radius-sm);
	font-family: var(--font-mono);
	font-size: var(--text-xs);
}
.settings-bookmarklet-btn {
	display: inline-block;
	text-align: center;
	cursor: grab;
}
.settings-bookmarklet-code {
	display: block;
	padding: var(--space-3);
	background: var(--bg-inset);
	border-radius: var(--radius-md);
	font-family: var(--font-mono);
	font-size: var(--text-xs);
	word-break: break-all;
	margin-top: var(--space-2);
	cursor: pointer;
}
.settings-dev-label {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	cursor: pointer;
}
.settings-dev-checkbox {
	width: 18px;
	height: 18px;
	accent-color: var(--accent);
}
.settings-danger-heading {
	color: var(--accent);
}
.settings-danger-card {
	border: 1px solid var(--accent);
}
.settings-danger-btn {
	background: var(--accent);
	color: var(--text-inverse);
}
.settings-key-heading {
	color: var(--text-primary);
}
.btn-danger {
	color: var(--error);
}