/**
 * Akel Tools Design System — Navigation and chrome components
 */

/* Tabs */
.at-tabs__list {
	display: flex;
	flex-wrap: wrap;
	gap: 0;
	border-bottom: 1px solid var(--border-default);
	margin: 0;
	padding: 0;
	list-style: none;
}

.at-tabs__tab {
	display: inline-flex;
	align-items: center;
	height: 40px;
	padding: 0 var(--space-4);
	font-size: var(--text-base);
	font-weight: var(--weight-medium);
	color: var(--text-secondary);
	background: transparent;
	border: none;
	border-bottom: 2px solid transparent;
	margin-bottom: -1px;
	cursor: pointer;
	transition: color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}

.at-tabs__tab:hover {
	color: var(--text-primary);
}

.at-tabs__tab[aria-selected="true"],
.at-tabs__tab.is-active {
	color: var(--brand-accent);
	border-bottom-color: var(--brand-accent);
	font-weight: var(--weight-semibold);
}

.at-tabs__tab:focus-visible {
	outline: none;
	box-shadow: var(--focus-ring);
}

.at-tabs__panel {
	padding: var(--space-5) 0;
}

.at-tabs__panel[hidden] {
	display: none;
}

.at-tabs--sub .at-tabs__tab {
	height: 32px;
	font-size: var(--text-sm);
	padding: 0 var(--space-3);
}

/* Breadcrumb */
.at-breadcrumb {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--space-2);
	margin: 0;
	padding: 0;
	list-style: none;
	font-size: var(--text-sm);
}

.at-breadcrumb a {
	color: var(--text-secondary);
	text-decoration: none;
	font-weight: var(--weight-medium);
	transition: color var(--duration-fast) var(--ease-out);
}

.at-breadcrumb a:hover {
	color: var(--brand-accent);
}

.at-breadcrumb__current {
	color: var(--text-primary);
	font-weight: var(--weight-semibold);
}

.at-breadcrumb__item {
	display: inline-flex;
	align-items: center;
	gap: var(--space-2);
	color: var(--text-tertiary);
}

.at-breadcrumb__item a {
	color: var(--text-secondary);
	text-decoration: none;
	font-weight: var(--weight-medium);
}

.at-breadcrumb__item a:hover {
	color: var(--brand-accent);
}

.at-breadcrumb__item:last-child {
	color: var(--text-primary);
	font-weight: var(--weight-semibold);
}

.at-breadcrumb__sep {
	color: var(--text-tertiary);
	user-select: none;
}

/* Pagination */
.at-pagination {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--space-2);
}

.at-pagination__btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 32px;
	height: 32px;
	padding: 0 var(--space-2);
	font-size: var(--text-sm);
	font-weight: var(--weight-medium);
	color: var(--text-secondary);
	background: var(--surface-elevated);
	border: 1px solid var(--border-default);
	border-radius: 0;
	cursor: pointer;
	transition: all var(--duration-fast) var(--ease-out);
}

.at-pagination__btn:hover:not(:disabled) {
	border-color: var(--border-strong);
	color: var(--text-primary);
}

.at-pagination__btn.is-active {
	background: var(--brand-accent-soft);
	border-color: var(--brand-accent);
	color: var(--brand-accent);
	font-weight: var(--weight-semibold);
}

.at-pagination__btn:disabled {
	opacity: 0.45;
	cursor: not-allowed;
}

.at-pagination__btn:focus-visible {
	outline: none;
	box-shadow: var(--focus-ring);
}

.at-pagination__page {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 32px;
	height: 32px;
	padding: 0 var(--space-2);
	font-size: var(--text-sm);
	font-weight: var(--weight-medium);
	color: var(--text-secondary);
	background: var(--surface-elevated);
	border: 1px solid var(--border-default);
	border-radius: 0;
	cursor: pointer;
	transition: all var(--duration-fast) var(--ease-out);
}

.at-pagination__page:hover {
	border-color: var(--border-strong);
	color: var(--text-primary);
}

.at-pagination__page.is-active {
	background: var(--brand-navy);
	border-color: var(--brand-navy);
	color: #ffffff;
	font-weight: var(--weight-semibold);
}

[data-theme="dark"] .at-pagination__page.is-active {
	background: var(--brand-accent);
	border-color: var(--brand-accent);
	color: var(--text-inverse);
}

.at-pagination__page:focus-visible {
	outline: none;
	box-shadow: var(--focus-ring);
}

/* Accordion */
.at-accordion__item {
	border: 1px solid var(--border-default);
	border-radius: 0;
	overflow: hidden;
}

.at-accordion__item + .at-accordion__item {
	margin-top: var(--space-2);
}

.at-accordion__trigger {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-3);
	width: 100%;
	padding: var(--space-4);
	font-size: var(--text-md);
	font-weight: var(--weight-semibold);
	color: var(--text-primary);
	background: var(--surface-elevated);
	border: none;
	cursor: pointer;
	text-align: left;
}

.at-accordion__trigger::-webkit-details-marker {
	display: none;
}

summary.at-accordion__trigger {
	list-style: none;
}

.at-accordion__trigger:hover {
	background: var(--surface-subtle);
}

.at-accordion__trigger:hover .at-accordion__chevron {
	color: var(--text-primary);
}

.at-accordion__trigger:focus-visible {
	outline: none;
	box-shadow: inset var(--focus-ring);
}

.at-accordion__label {
	flex: 1;
	min-width: 0;
}

/* Plus when collapsed, minus when open */
.at-accordion__chevron {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 20px;
	height: 20px;
	flex-shrink: 0;
	font-size: 18px;
	font-weight: var(--weight-bold);
	line-height: 1;
	color: var(--text-secondary);
	transition: color var(--duration-fast) var(--ease-out);
}

.at-accordion__chevron::before {
	content: "+";
}

.at-accordion__item.is-open .at-accordion__chevron::before,
details.at-accordion__item[open] .at-accordion__chevron::before {
	content: "\2212";
}

.at-accordion__chevron svg {
	display: none;
}

.at-accordion__trigger:hover .at-accordion__chevron {
	color: var(--text-primary);
}

.at-accordion__panel {
	padding: 0 var(--space-4) var(--space-4);
	font-size: var(--text-md);
	color: var(--text-secondary);
	background: var(--surface-elevated);
}

.at-accordion__panel[hidden] {
	display: none;
}

/* Stepper */
.at-stepper {
	display: flex;
	align-items: flex-start;
	gap: 0;
	list-style: none;
	margin: 0;
	padding: 0;
}

.at-stepper__step {
	display: flex;
	flex: 1;
	flex-direction: column;
	align-items: center;
	position: relative;
	text-align: center;
}

.at-stepper__step:not(:last-child)::after {
	content: "";
	position: absolute;
	top: 14px;
	left: calc(50% + 20px);
	right: calc(-50% + 20px);
	height: 2px;
	background: var(--border-default);
}

.at-stepper__step.is-complete:not(:last-child)::after {
	background: var(--brand-success);
}

.at-stepper__dot {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	font-size: var(--text-xs);
	font-weight: var(--weight-bold);
	color: var(--text-tertiary);
	background: var(--surface-subtle);
	border: 2px solid var(--border-default);
	border-radius: 0;
	position: relative;
	z-index: 1;
}

.at-stepper__step.is-current .at-stepper__dot {
	color: #fff;
	background: var(--brand-accent);
	border-color: var(--brand-accent);
}

.at-stepper__step.is-complete .at-stepper__dot {
	color: #fff;
	background: var(--brand-success);
	border-color: var(--brand-success);
}

.at-stepper__label {
	margin-top: var(--space-2);
	font-size: var(--text-xs);
	font-weight: var(--weight-medium);
	color: var(--text-tertiary);
}

.at-stepper__step.is-current .at-stepper__label {
	color: var(--text-primary);
	font-weight: var(--weight-semibold);
}

/* Sort indicator */
.at-sort {
	display: inline-flex;
	align-items: center;
	gap: var(--space-1);
	cursor: pointer;
	user-select: none;
}

.at-sort__icon {
	width: 12px;
	height: 12px;
	opacity: 0.35;
}

.at-sort.is-asc .at-sort__icon,
.at-sort.is-desc .at-sort__icon {
	opacity: 1;
	color: var(--brand-accent);
}

/* Divider */
.at-divider {
	border: none;
	border-top: 1px solid var(--border-default);
	margin: var(--space-5) 0;
}

.at-divider--labeled {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	border: none;
	margin: var(--space-5) 0;
	color: var(--text-tertiary);
	font-size: var(--text-caps, 11px);
	font-weight: var(--weight-semibold);
	letter-spacing: var(--tracking-wide);
	text-transform: uppercase;
}

.at-divider--labeled::before,
.at-divider--labeled::after {
	content: "";
	flex: 1;
	height: 1px;
	background: var(--border-default);
}

.at-divider--vertical {
	display: inline-block;
	width: 1px;
	height: 1.2em;
	margin: 0 var(--space-3);
	border: none;
	background: var(--border-default);
	vertical-align: middle;
}

/* Sidebar collapsed */
.at-shell.at-shell--collapsed {
	grid-template-columns: 60px 1fr;
}

.at-sidebar--collapsed {
	width: 60px;
	padding: var(--space-3) var(--space-2);
}

.at-sidebar--collapsed .at-sidebar__brand-text,
.at-sidebar--collapsed .at-nav-item span:not(.at-nav-item__icon) {
	display: none;
}

.at-sidebar--collapsed .at-nav-item {
	justify-content: center;
	padding: 0;
	width: 40px;
	margin: 0 auto;
}

/* Sub-nav */
.at-sub-nav {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-2);
	padding: var(--space-2) 0;
}

.at-sub-nav__link {
	display: inline-flex;
	align-items: center;
	height: 28px;
	padding: 0 var(--space-3);
	font-size: var(--text-sm);
	font-weight: var(--weight-medium);
	color: var(--text-secondary);
	text-decoration: none;
	border-radius: 0;
	transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

.at-sub-nav__link:hover {
	background: var(--surface-subtle);
	color: var(--text-primary);
}

.at-sub-nav__link.is-active {
	background: var(--brand-accent-soft);
	color: var(--brand-accent);
	font-weight: var(--weight-semibold);
}

/* Bulk action bar */
.at-bulk-bar {
	display: flex;
	align-items: center;
	gap: var(--space-4);
	padding: var(--space-3) var(--space-5);
	background: var(--surface-elevated);
	border: 1px solid var(--border-default);
	border-radius: 0;
	box-shadow: var(--shadow-lg);
}

.at-bulk-bar__count {
	font-size: var(--text-md);
	font-weight: var(--weight-semibold);
	color: var(--text-primary);
}

.at-bulk-bar__spacer {
	flex: 1;
}

/* Filter bar */
.at-filter-bar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--space-3);
	padding: var(--space-3) var(--space-4);
	background: var(--surface-elevated);
	border: 1px solid var(--border-default);
	border-radius: 0;
}

.at-filter-bar .at-search {
	flex: 1;
	min-width: 200px;
	max-width: 320px;
}

/* List chrome toolbar (search + filters + view + export + refresh) */
.at-list-chrome {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-4);
	flex-wrap: wrap;
	padding: var(--space-4) 0;
}

.at-list-chrome__left {
	display: flex;
	align-items: baseline;
	gap: var(--space-3);
	min-width: 0;
}

.at-list-chrome__title {
	font-size: var(--text-xl);
	font-weight: var(--weight-bold);
	color: var(--text-primary);
	margin: 0;
}

.at-list-chrome__meta {
	font-size: var(--text-sm);
	color: var(--text-secondary);
	font-weight: var(--weight-medium);
}

.at-list-chrome__right {
	display: flex;
	align-items: flex-end;
	gap: var(--space-3);
	flex-wrap: wrap;
}

.at-list-chrome__search {
	flex: 0 1 auto;
	min-width: 0;
	width: min(280px, 100%);
}

.at-list-chrome__search .at-search {
	width: 100%;
}

.at-list-chrome__wrap {
	position: relative;
	display: inline-flex;
}

.at-list-chrome__btn {
	display: inline-flex;
	align-items: center;
	gap: var(--space-2);
	padding: 0.45rem 0.85rem;
	min-height: 2.5rem;
	font-family: var(--font-sans);
	font-size: var(--text-sm);
	font-weight: var(--weight-medium);
	color: var(--text-primary);
	background: var(--surface-elevated);
	border: 1px solid var(--border-default);
	border-radius: 0;
	cursor: pointer;
	transition: background-color 0.15s, border-color 0.15s, box-shadow 0.15s;
	white-space: nowrap;
	-webkit-appearance: none;
	appearance: none;
	flex: 0 0 auto;
}

.at-list-chrome__btn:hover {
	background: var(--surface-subtle);
	border-color: var(--border-strong);
}

.at-list-chrome__btn:focus-visible {
	outline: none;
	border-color: var(--brand-accent);
	box-shadow: var(--focus-ring);
}

.at-list-chrome__btn[aria-expanded="true"] {
	background: var(--brand-accent-soft);
	border-color: var(--brand-accent);
}

.at-list-chrome__btn:disabled {
	opacity: 0.5;
	cursor: not-allowed;
}

.at-list-chrome__btn:disabled:hover {
	background: var(--surface-elevated);
	border-color: var(--border-default);
}

.at-list-chrome__btn-ico {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	line-height: 0;
	color: var(--text-secondary);
}

.at-list-chrome__btn-badge {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 1.1rem;
	height: 1.1rem;
	padding: 0 var(--space-2);
	margin-left: var(--space-1);
	font-size: var(--text-xs);
	font-weight: var(--weight-bold);
	color: var(--text-inverse);
	background: var(--brand-navy);
	border-radius: 0;
}

.at-list-chrome__btn--spinning .at-list-chrome__btn-ico {
	animation: at-list-chrome-spin 0.75s linear infinite;
}

@keyframes at-list-chrome-spin {
	from { transform: rotate(0deg); }
	to { transform: rotate(360deg); }
}

.at-list-chrome-popover {
	position: absolute;
	top: calc(100% + var(--space-2));
	left: 0;
	right: auto;
	z-index: var(--z-popover, 200);
	width: min(320px, 92vw);
	max-width: calc(100vw - var(--space-6));
	max-height: min(70vh, 540px);
	overflow-y: auto;
	padding: var(--space-4) var(--space-5);
	font-size: var(--text-sm);
	background: var(--surface-elevated);
	border: 1px solid var(--border-default);
	border-radius: 0;
	box-shadow: var(--shadow-lg);
	color: var(--text-primary);
}

.at-list-chrome__wrap--view > .at-list-chrome-popover {
	left: auto;
	right: 0;
}

.at-list-chrome-popover[hidden] {
	display: none;
}

.at-list-chrome:has(.at-list-chrome-popover:not([hidden])) {
	overflow: visible;
	position: relative;
	z-index: 20;
}

.at-list-chrome__wrap:has(.at-list-chrome-popover:not([hidden])) {
	z-index: 21;
}

.at-list-chrome-popover__fields {
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
}

.at-list-chrome-popover__field {
	display: flex;
	flex-direction: column;
	gap: var(--space-2);
}

.at-list-chrome-popover__label {
	font-size: var(--text-caps, 11px);
	font-weight: var(--weight-bold);
	text-transform: uppercase;
	letter-spacing: var(--tracking-eyebrow);
	color: var(--text-secondary);
}

.at-list-chrome-popover__field .at-select,
.at-list-chrome-popover__field .at-input {
	width: 100%;
	min-height: 2.25rem;
}

.at-list-chrome-popover__footer {
	margin-top: var(--space-4);
	padding-top: var(--space-3);
	border-top: 1px solid var(--border-default);
	display: flex;
	justify-content: flex-end;
}

.at-list-chrome-popover__clear {
	background: transparent;
	border: 1px solid var(--border-default);
	color: var(--text-secondary);
	font-family: var(--font-sans);
	font-size: var(--text-sm);
	font-weight: var(--weight-semibold);
	padding: 0.4rem 0.7rem;
	border-radius: 0;
	cursor: pointer;
}

.at-list-chrome-popover__clear:hover {
	color: var(--text-primary);
	border-color: var(--border-strong);
}

.at-list-chrome-popover__section {
	display: flex;
	flex-direction: column;
	gap: var(--space-2);
	padding-bottom: var(--space-4);
	margin-bottom: var(--space-4);
	border-bottom: 1px solid var(--border-default);
}

.at-list-chrome-popover__section:last-of-type {
	margin-bottom: 0;
	padding-bottom: 0;
	border-bottom: 0;
}

.at-list-chrome-popover__section-title {
	font-size: var(--text-caps, 11px);
	font-weight: var(--weight-bold);
	text-transform: uppercase;
	letter-spacing: var(--tracking-eyebrow);
	color: var(--text-secondary);
}

.at-list-chrome-popover__density {
	display: inline-flex;
	border: 1px solid var(--border-default);
	border-radius: 0;
	overflow: hidden;
	width: 100%;
}

.at-list-chrome-popover__density-btn {
	flex: 1 1 0;
	padding: 0.45rem 0.65rem;
	font-family: var(--font-sans);
	font-size: var(--text-sm);
	font-weight: var(--weight-semibold);
	color: var(--text-primary);
	background: var(--surface-elevated);
	border: none;
	cursor: pointer;
}

.at-list-chrome-popover__density-btn.is-active {
	background: var(--brand-accent-soft);
	color: var(--brand-navy);
}

.at-list-chrome-popover__row {
	display: flex;
	align-items: center;
	gap: var(--space-2);
	font-size: var(--text-sm);
	cursor: pointer;
}

.at-list-chrome-popover__row input[type="checkbox"] {
	accent-color: var(--brand-accent);
}

/* Scrollbar */
.at-scroll {
	scrollbar-width: thin;
	scrollbar-color: var(--border-strong) transparent;
}

.at-scroll::-webkit-scrollbar {
	width: 6px;
	height: 6px;
}

.at-scroll::-webkit-scrollbar-thumb {
	background: var(--border-strong);
	border-radius: 0;
}

.at-scroll::-webkit-scrollbar-track {
	background: transparent;
}