/**
 * Work — Filter Button + Panel
 *
 * Floating bottom-center pill button + slide-up filter panel listing
 * worktags + work-categories. Injected by ad_work_filter_panel() at
 * wp_footer on the Work page + work taxonomy archives.
 *
 * Loaded only on those pages via ad_enqueue_work_filter() in functions.php.
 *
 * Carved out of custom.css (2026-05-18, batch 3).
 */

/* Floating trigger button — fixed bottom-center */
.ad-work-filter__btn {
	position: fixed;
	bottom: 2rem;
	left: 50%;
	transform: translateX(-50%);
	z-index: 52;
	background-color: var(--wp--preset--color--primary);
	color: var(--wp--preset--color--secondary);
	border: none;
	border-radius: 2rem;
	font-family: var(--wp--preset--font-family--sohne);
	font-size: var(--wp--preset--font-size--sm);
	font-weight: 400;
	letter-spacing: 0.02em;
	padding: 0.75rem 2.25rem;
	cursor: pointer;
	white-space: nowrap;
	box-shadow: var(--ad-shadow-md);
	transition: background-color 0.2s ease, color 0.2s ease,
		opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
}

.ad-work-filter__btn:focus-visible {
	outline: 2px solid var(--wp--preset--color--accent);
	outline-offset: 3px;
}

/* Trigger char-stagger roll effect when the button is hovered */
.ad-work-filter__btn:hover .ad-char__inner {
	transform: translateY(-100%);
}

/* ad-char-split uses display:inline-flex !important — re-hide when toggled off */
.ad-work-filter__label--filter[hidden],
.ad-work-filter__label--close[hidden] {
	display: none !important;
}

/* Work page — button starts white (dark hero bg). JS flips it to dark on scroll. */
.ad-work-filter--hero-start .ad-work-filter__btn {
	background-color: var(--wp--preset--color--secondary);
	color: var(--wp--preset--color--primary);
}

/* Dark while floating over the light "All Projects" grid (set by work-filter.js). */
.ad-work-filter__btn.is-inverted {
	background-color: var(--wp--preset--color--primary);
	color: var(--wp--preset--color--secondary);
}

/* Parked — hidden before the button can overlap the footer. */
.ad-work-filter__btn.is-hidden {
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transform: translateX(-50%) translateY(1.5rem);
}

/* Overlay — blocks interaction with page behind the panel */
.ad-work-filter__overlay {
	position: fixed;
	inset: 0;
	z-index: 50;
	background-color: rgba(0, 0, 0, 0.45);
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.3s ease;
}

body.filter-open .ad-work-filter__overlay {
	opacity: 1;
	pointer-events: auto;
}

body.filter-open {
	overflow: hidden;
}

/* Panel — bottom-anchored, wide, multi-column */
.ad-work-filter__panel {
	position: fixed;
	bottom: 5rem;
	left: 50%;
	z-index: 51;
	background-color: var(--wp--preset--color--primary);
	color: var(--wp--preset--color--secondary);
	border-radius: 0.5rem;
	width: min(1100px, 90vw);
	max-height: 80vh;
	overflow-y: auto;
	padding: 2rem 2.5rem 1.5rem;
	visibility: hidden;
	opacity: 0;
	pointer-events: none;
	transform: translateX(-50%) translateY(0.75rem);
	transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
}

.ad-work-filter__panel.is-open {
	visibility: visible;
	opacity: 1;
	pointer-events: auto;
	transform: translateX(-50%) translateY(0);
}

/* Inner layout — grid: [tabs | view-all] in row 1, panels full-width in row 2 */
.ad-work-filter__inner {
	display: grid;
	grid-template-columns: 1fr auto;
	grid-template-rows: auto auto;
	row-gap: 1.25rem;
	column-gap: 1.5rem;
	align-items: end;
}

/* Tab bar — row 1, col 1 */
.ad-work-filter__tabs {
	grid-column: 1;
	grid-row: 1;
	display: flex;
	gap: 0.25rem;
	border-bottom: 1px solid rgba(255, 255, 255, 0.15);
	padding-bottom: 0;
}

.ad-work-filter__tab {
	background: none;
	border: none;
	border-bottom: 2px solid transparent;
	margin-bottom: -1px;
	color: var(--wp--preset--color--tone-dark);
	font-family: var(--wp--preset--font-family--sohne);
	font-size: var(--wp--preset--font-size--xs);
	font-weight: 400;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	padding: 0 1.25rem 0.6rem 0;
	cursor: pointer;
	transition: color 0.15s ease, border-color 0.15s ease;
}

.ad-work-filter__tab.is-active {
	color: var(--wp--preset--color--secondary);
	border-bottom-color: var(--wp--preset--color--secondary);
}

.ad-work-filter__tab:hover {
	color: var(--wp--preset--color--secondary);
}

.ad-work-filter__tab:focus-visible {
	outline: 2px solid var(--wp--preset--color--accent);
	outline-offset: 2px;
	border-radius: 2px;
}

/* Tab panels — row 2, span both columns */
.ad-work-filter__tab-panel {
	grid-column: 1 / -1;
	grid-row: 2;
}

.ad-work-filter__tab-panel[hidden] {
	display: none;
}

/* Terms: 2-column grid within each tab panel */
.ad-work-filter__terms {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	grid-template-columns: 1fr 1fr;
	column-gap: 2rem;
}

.ad-work-filter__terms li {
	border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.ad-work-filter__term {
	position: relative;
	display: block;
	font-size: var(--wp--preset--font-size--lg);
	font-weight: 300;
	color: var(--wp--preset--color--secondary);
	text-decoration: none;
	padding: 0.45rem 0;
	padding-left: 0;
	transition: color 0.2s ease, padding-left 0.25s cubic-bezier(0.25, 0, 0.5, 1);
}

/* Blue bullet — fades in as text shifts right */
.ad-work-filter__term::before {
	content: '•';
	position: absolute;
	left: 0;
	top: 50%;
	transform: translateY(-50%);
	color: var(--wp--preset--color--accent);
	font-size: 0.7em;
	opacity: 0;
	transition: opacity 0.2s ease;
}

.ad-work-filter__term:hover,
.ad-work-filter__term.is-active {
	color: var(--wp--preset--color--accent);
	padding-left: 1rem;
	text-decoration: none;
}

.ad-work-filter__term:hover::before,
.ad-work-filter__term.is-active::before {
	opacity: 1;
}

.ad-work-filter__term:focus-visible {
	outline: 2px solid var(--wp--preset--color--accent);
	outline-offset: 2px;
	border-radius: 2px;
	color: var(--wp--preset--color--accent);
	text-decoration: none;
}

/* Footer — row 1, col 2 (sits right of the tab bar) */
.ad-work-filter__footer {
	grid-column: 2;
	grid-row: 1;
	padding-bottom: 0.6rem;
	border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.ad-work-filter__view-all {
	font-size: var(--wp--preset--font-size--sm);
	font-weight: 400;
	color: var(--wp--preset--color--accent);
	text-decoration: none;
	letter-spacing: 0.02em;
}

.ad-work-filter__view-all:hover {
	text-decoration: underline;
}

.ad-work-filter__view-all:focus-visible {
	outline: 2px solid var(--wp--preset--color--accent);
	outline-offset: 2px;
	border-radius: 2px;
}

/* Responsive */
@media (max-width: 600px) {
	/* Pad panel away from viewport edges instead of using translateX(-50%) */
	.ad-work-filter__panel {
		left: 1rem;
		right: 1rem;
		width: auto;
		transform: translateY(0.75rem);
	}

	.ad-work-filter__panel.is-open {
		transform: translateY(0);
	}

	/* Single-column terms on small screens */
	.ad-work-filter__terms {
		grid-template-columns: 1fr;
	}
}

@media (prefers-reduced-motion: reduce) {
	.ad-work-filter__panel,
	.ad-work-filter__overlay,
	.ad-work-filter__btn {
		transition: none;
	}
}