/*
 * V0.14 Projects gallery and project-detail experience.
 *
 * Component names are intentionally scoped to avoid collisions with the
 * Services, FAQ, company, and homepage systems.
 */

.project-evidence-policy--gallery {
	border-bottom: 1px solid var(--tt-border);
}

/* Project library filters */
.project-gallery-filters {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.project-gallery-filter {
	display: inline-flex;
	align-items: center;
	gap: 0.65rem;
	min-height: 3.25rem;
	padding: 0.7rem 0.9rem 0.7rem 1rem;
	border: 1px solid var(--tt-border);
	border-radius: 999px;
	background: var(--tt-white);
	color: var(--tt-navy-950);
	font: inherit;
	font-weight: 700;
	transition:
		transform var(--tt-fast) var(--tt-ease),
		border-color var(--tt-fast) ease,
		background var(--tt-fast) ease,
		color var(--tt-fast) ease;
}

.project-gallery-filter svg {
	width: 1.15rem;
	height: 1.15rem;
	stroke: var(--tt-blue-600);
	stroke-width: 1.8;
	fill: none;
}

.project-gallery-filter strong {
	display: inline-grid;
	place-items: center;
	min-width: 2rem;
	height: 2rem;
	padding-inline: 0.45rem;
	border-radius: 999px;
	background: var(--tt-surface-100);
	color: var(--tt-blue-600);
	font-size: 0.84rem;
}

.project-gallery-filter:hover,
.project-gallery-filter:focus-visible {
	border-color: rgba(11, 99, 182, 0.4);
	transform: translateY(-2px);
}

.project-gallery-filter.is-active {
	border-color: var(--tt-navy-950);
	background: var(--tt-navy-950);
	color: var(--tt-white);
}

.project-gallery-filter.is-active svg {
	stroke: var(--tt-gold-200);
}

.project-gallery-filter.is-active strong {
	background: var(--tt-gold-500);
	color: var(--tt-navy-950);
}

.project-gallery-status {
	margin: 1.2rem 0 0;
	color: var(--tt-ink-600);
	font-size: 0.94rem;
}

.project-gallery-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: clamp(1rem, 2.5vw, 1.6rem);
	margin-top: 1.5rem;
}

.project-gallery-card {
	position: relative;
	display: flex;
	flex-direction: column;
	min-width: 0;
	border: 1px solid var(--tt-border);
	border-radius: 1.1rem;
	background: var(--tt-white);
	box-shadow: 0 16px 44px rgba(6, 20, 47, 0.08);
	overflow: hidden;
	transition:
		transform var(--tt-medium) var(--tt-ease),
		box-shadow var(--tt-medium) var(--tt-ease),
		border-color var(--tt-medium) ease;
}

.project-gallery-card[hidden] {
	display: none;
}

.project-gallery-card:hover,
.project-gallery-card:focus-within {
	border-color: rgba(11, 99, 182, 0.3);
	box-shadow: 0 26px 66px rgba(6, 20, 47, 0.15);
	transform: translateY(-6px);
}

.project-gallery-card__media {
	position: relative;
	display: block;
	aspect-ratio: 16 / 10;
	background: var(--tt-navy-950);
	overflow: hidden;
}

.project-gallery-card__media::after {
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, transparent 42%, rgba(6, 20, 47, 0.7) 100%);
	content: "";
}

.project-gallery-card__media picture,
.project-gallery-card__media img {
	display: block;
	width: 100%;
	height: 100%;
}

.project-gallery-card__media img {
	object-fit: cover;
	transition: transform 780ms var(--tt-ease), filter 780ms var(--tt-ease);
}

.project-gallery-card:hover .project-gallery-card__media img,
.project-gallery-card:focus-within .project-gallery-card__media img {
	filter: saturate(1.04) contrast(1.03);
	transform: scale(1.055);
}

.project-gallery-card__media-count,
.project-gallery-card__disclosure {
	position: absolute;
	z-index: 1;
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	border: 1px solid rgba(255, 255, 255, 0.22);
	border-radius: 999px;
	background: rgba(6, 20, 47, 0.76);
	color: var(--tt-white);
	font-size: 0.78rem;
	font-weight: 700;
	backdrop-filter: blur(10px);
}

.project-gallery-card__media-count {
	right: 0.85rem;
	bottom: 0.85rem;
	padding: 0.5rem 0.65rem;
}

.project-gallery-card__media-count svg {
	width: 0.95rem;
	height: 0.95rem;
	stroke: var(--tt-gold-200);
	stroke-width: 1.8;
	fill: none;
}

.project-gallery-card__disclosure {
	top: 0.85rem;
	left: 0.85rem;
	padding: 0.45rem 0.65rem;
	color: var(--tt-gold-200);
	letter-spacing: 0.04em;
	text-transform: uppercase;
}

.project-gallery-card__content {
	display: flex;
	flex: 1;
	flex-direction: column;
	gap: 0.85rem;
	padding: 1.25rem;
}

.project-gallery-card__topline {
	display: flex;
	justify-content: space-between;
	gap: 0.75rem;
	align-items: flex-start;
	color: var(--tt-ink-600);
	font-size: 0.78rem;
	line-height: 1.4;
}

.project-gallery-card__category {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	color: var(--tt-blue-600);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
}

.project-gallery-card__category svg {
	width: 1rem;
	height: 1rem;
	stroke: currentColor;
	stroke-width: 1.8;
	fill: none;
}

.project-gallery-card h3 {
	margin: 0;
	font-size: clamp(1.632rem, 2.592vw, 2.064rem);
	line-height: 1;
}

.project-gallery-card h3 a {
	color: var(--tt-navy-950);
	text-decoration: none;
}

.project-gallery-card__content > p {
	margin: 0;
	color: var(--tt-ink-600);
	line-height: 1.65;
}

.project-gallery-card__footer {
	display: grid;
	gap: 0.9rem;
	padding-top: 0.9rem;
	margin-top: auto;
	border-top: 1px solid var(--tt-border);
}

.project-gallery-card__footer > span {
	color: var(--tt-ink-600);
	font-size: 0.85rem;
	line-height: 1.45;
}

/* Category overview */
.project-category-overview__grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: clamp(1rem, 2.5vw, 1.5rem);
	margin-top: clamp(2rem, 4vw, 3rem);
}

.project-category-overview__card {
	position: relative;
	padding: clamp(1.35rem, 3vw, 2rem);
	border: 1px solid var(--tt-border);
	border-radius: 1rem;
	background:
		radial-gradient(circle at top right, rgba(11, 99, 182, 0.1), transparent 34%),
		var(--tt-white);
	box-shadow: var(--tt-shadow-sm);
	overflow: hidden;
}

.project-category-overview__icon {
	display: inline-grid;
	place-items: center;
	width: 3.2rem;
	height: 3.2rem;
	margin-bottom: 1rem;
	border-radius: 0.8rem;
	background: var(--tt-navy-950);
	color: var(--tt-gold-200);
}

.project-category-overview__icon svg {
	width: 1.45rem;
	height: 1.45rem;
	stroke: currentColor;
	stroke-width: 1.75;
	fill: none;
}

.project-category-overview__card h3 {
	margin: 0.2rem 0 0.65rem;
	font-size: clamp(1.86rem, 3.534vw, 2.558rem);
}

.project-category-overview__card > p:not(.eyebrow) {
	color: var(--tt-ink-600);
	line-height: 1.67;
}

.project-category-overview__filter {
	border: 0;
	background: transparent;
	font: inherit;
	cursor: pointer;
}

/* Detail disclosure and sticky nav */
.project-detail-disclosure {
	border-bottom: 1px solid var(--tt-border);
	background: var(--tt-white);
}

.project-detail-disclosure__inner {
	display: grid;
	grid-template-columns: auto minmax(0, 1fr);
	gap: 1.1rem;
	align-items: flex-start;
	padding-block: clamp(1.5rem, 4vw, 2.5rem);
}

.project-detail-disclosure__icon {
	display: inline-grid;
	place-items: center;
	width: 3.4rem;
	height: 3.4rem;
	border-radius: 999px;
	background: rgba(211, 154, 53, 0.14);
	color: var(--tt-gold-700);
}

.project-detail-disclosure__icon svg {
	width: 1.5rem;
	height: 1.5rem;
	stroke: currentColor;
	stroke-width: 1.8;
	fill: none;
}

.project-detail-disclosure h2 {
	margin: 0.15rem 0 0.5rem;
	font-size: clamp(1.674rem, 2.976vw, 2.418rem);
}

.project-detail-disclosure p:last-child {
	max-width: 80ch;
	margin: 0;
	color: var(--tt-ink-600);
	line-height: 1.65;
}

.project-detail-nav {
	position: sticky;
	z-index: 25;
	top: var(--tt-sticky-offset, 5rem);
	border-bottom: 1px solid var(--tt-border);
	background: rgba(255, 255, 255, 0.94);
	backdrop-filter: blur(14px);
}

.project-detail-nav__inner {
	display: flex;
	gap: 1.4rem;
	overflow-x: auto;
	scrollbar-width: thin;
}

.project-detail-nav a {
	position: relative;
	flex: 0 0 auto;
	padding: 1rem 0;
	color: var(--tt-navy-950);
	font-size: 0.9rem;
	font-weight: 700;
	text-decoration: none;
}

.project-detail-nav a::after {
	position: absolute;
	right: 0;
	bottom: -1px;
	left: 0;
	height: 2px;
	background: var(--tt-gold-500);
	content: "";
	transform: scaleX(0);
	transform-origin: left;
	transition: transform var(--tt-fast) var(--tt-ease);
}

.project-detail-nav a:hover::after,
.project-detail-nav a:focus-visible::after {
	transform: scaleX(1);
}

/* Detail introduction and scope */
.project-detail-intro__layout {
	display: grid;
	grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.68fr);
	gap: clamp(1.5rem, 5vw, 4rem);
	align-items: start;
}

.project-detail-intro__copy h2 {
	margin: 0.25rem 0 1rem;
	font-size: clamp(2.359rem, 4.984vw, 4.183rem);
	line-height: 0.96;
}

.project-detail-intro__lead {
	max-width: 68ch;
	color: var(--tt-ink-600);
	font-size: clamp(1.05rem, 1.5vw, 1.2rem);
	line-height: 1.75;
}

.project-detail-intro__services {
	display: flex;
	flex-wrap: wrap;
	gap: 0.65rem;
	margin-top: 1.35rem;
}

.project-detail-intro__services span {
	padding: 0.55rem 0.8rem;
	border: 1px solid rgba(11, 99, 182, 0.22);
	border-radius: 999px;
	background: rgba(11, 99, 182, 0.06);
	color: var(--tt-blue-600);
	font-size: 0.86rem;
	font-weight: 700;
}

.project-detail-summary {
	display: grid;
	border: 1px solid var(--tt-border);
	border-radius: 1rem;
	background: var(--tt-white);
	box-shadow: var(--tt-shadow-sm);
	overflow: hidden;
}

.project-detail-summary > div {
	display: grid;
	gap: 0.2rem;
	padding: 1rem 1.15rem;
	border-bottom: 1px solid var(--tt-border);
}

.project-detail-summary > div:last-child {
	border-bottom: 0;
}

.project-detail-summary span {
	color: var(--tt-ink-600);
	font-size: 0.76rem;
	font-weight: 700;
	letter-spacing: 0.07em;
	text-transform: uppercase;
}

.project-detail-summary strong {
	color: var(--tt-navy-950);
	line-height: 1.45;
}

.project-detail-scope__grid {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 1rem;
	margin-top: clamp(2rem, 4vw, 3rem);
}

.project-detail-scope__card {
	position: relative;
	padding: 1.25rem;
	border: 1px solid var(--tt-border);
	border-radius: 0.9rem;
	background: var(--tt-white);
	box-shadow: 0 12px 30px rgba(6, 20, 47, 0.06);
}

.project-detail-scope__card > span {
	display: inline-grid;
	place-items: center;
	width: 2.4rem;
	height: 2.4rem;
	border-radius: 999px;
	background: var(--tt-navy-950);
	color: var(--tt-gold-200);
	font-family: var(--tt-font-heading);
	font-size: 1rem;
}

.project-detail-scope__card h3 {
	margin: 1rem 0 0.6rem;
	font-size: 1.617rem;
	line-height: 1.05;
}

.project-detail-scope__card p {
	margin: 0;
	color: var(--tt-ink-600);
	font-size: 0.94rem;
	line-height: 1.6;
}

/* Project gallery slider */
.project-gallery-slider {
	position: relative;
	margin-top: clamp(2rem, 5vw, 3.25rem);
}

.project-gallery-slider__viewport {
	position: relative;
	min-height: clamp(33rem, 55vw, 43rem);
	border: 1px solid rgba(255, 255, 255, 0.12);
	border-radius: 1.25rem;
	background: var(--tt-navy-950);
	box-shadow: 0 30px 80px rgba(6, 20, 47, 0.2);
	overflow: hidden;
}

.project-gallery-slide {
	position: absolute;
	inset: 0;
	display: grid;
	grid-template-columns: minmax(0, 1.45fr) minmax(18rem, 0.68fr);
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transform: translateX(2rem);
	transition:
		opacity 520ms var(--tt-ease),
		transform 520ms var(--tt-ease),
		visibility 0s linear 520ms;
}

.project-gallery-slide.is-active {
	opacity: 1;
	visibility: visible;
	pointer-events: auto;
	transform: translateX(0);
	transition-delay: 0s;
}

.project-gallery-slide__media {
	position: relative;
	min-width: 0;
	overflow: hidden;
}

.project-gallery-slide__media::after {
	position: absolute;
	inset: 0;
	background: linear-gradient(90deg, transparent 55%, rgba(6, 20, 47, 0.24) 100%);
	content: "";
	pointer-events: none;
}

.project-gallery-slide__media picture,
.project-gallery-slide__media img {
	display: block;
	width: 100%;
	height: 100%;
}

.project-gallery-slide__media img {
	object-fit: cover;
	transform: scale(1.025);
	transition: transform 900ms var(--tt-ease);
}

.project-gallery-slide.is-active .project-gallery-slide__media img {
	transform: scale(1);
}

.project-gallery-slide__expand {
	position: absolute;
	z-index: 2;
	right: 1rem;
	bottom: 1rem;
	display: inline-flex;
	align-items: center;
	gap: 0.55rem;
	min-height: 2.8rem;
	padding: 0.65rem 0.8rem;
	border: 1px solid rgba(255, 255, 255, 0.28);
	border-radius: 999px;
	background: rgba(6, 20, 47, 0.78);
	color: var(--tt-white);
	font: inherit;
	font-size: 0.86rem;
	font-weight: 700;
	backdrop-filter: blur(12px);
	transition: background var(--tt-fast) ease, transform var(--tt-fast) var(--tt-ease);
}

.project-gallery-slide__expand:hover,
.project-gallery-slide__expand:focus-visible {
	background: var(--tt-blue-600);
	transform: translateY(-2px);
}

.project-gallery-slide__expand svg {
	width: 1rem;
	height: 1rem;
	stroke: currentColor;
	stroke-width: 1.8;
	fill: none;
}

.project-gallery-slide__content {
	position: relative;
	display: flex;
	flex-direction: column;
	justify-content: center;
	gap: 1rem;
	padding: clamp(1.5rem, 4vw, 3rem);
	background:
		radial-gradient(circle at top right, rgba(11, 99, 182, 0.22), transparent 34%),
		var(--tt-gradient-navy);
	color: var(--tt-white);
}

.project-gallery-slide__content::before {
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	width: 2px;
	background: var(--tt-gradient-gold);
	content: "";
}

.project-gallery-slide__index {
	margin: 0;
	color: var(--tt-gold-200);
	font-family: var(--tt-font-heading);
	font-size: 1.1rem;
	letter-spacing: 0.06em;
}

.project-gallery-slide__content h3 {
	margin: 0;
	color: var(--tt-white);
	font-size: clamp(1.957rem, 3.64vw, 3.185rem);
	line-height: 0.98;
}

.project-gallery-slide__content > p:not(.project-gallery-slide__index) {
	margin: 0;
	color: rgba(255, 255, 255, 0.8);
	line-height: 1.7;
}

.project-gallery-slide__content small {
	margin-top: 0.5rem;
	padding-top: 1rem;
	border-top: 1px solid rgba(255, 255, 255, 0.14);
	color: rgba(255, 255, 255, 0.62);
	font-size: 0.78rem;
	line-height: 1.5;
}

.project-gallery-slider__controls {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 1rem;
	margin-top: 1.25rem;
}

.project-gallery-slider__arrow {
	display: inline-grid;
	place-items: center;
	width: 3.25rem;
	height: 3.25rem;
	border: 1px solid var(--tt-border);
	border-radius: 999px;
	background: var(--tt-white);
	color: var(--tt-navy-950);
	transition:
		background var(--tt-fast) ease,
		color var(--tt-fast) ease,
		transform var(--tt-fast) var(--tt-ease);
}

.project-gallery-slider__arrow:hover,
.project-gallery-slider__arrow:focus-visible {
	background: var(--tt-navy-950);
	color: var(--tt-white);
	transform: translateY(-2px);
}

.project-gallery-slider__arrow svg {
	width: 1.1rem;
	height: 1.1rem;
	stroke: currentColor;
	stroke-width: 2;
	fill: none;
}

.project-gallery-slider__arrow--prev svg {
	transform: rotate(180deg);
}

.project-gallery-slider__status {
	display: inline-flex;
	align-items: center;
	gap: 0.7rem;
	color: var(--tt-navy-950);
	font-family: var(--tt-font-heading);
	font-size: 1.15rem;
}

.project-gallery-slider__status i {
	width: 4rem;
	height: 2px;
	background: var(--tt-gradient-gold);
}

.project-gallery-slider__thumbs {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 0.75rem;
	margin-top: 1.25rem;
}

.project-gallery-thumb {
	position: relative;
	aspect-ratio: 16 / 9;
	padding: 0;
	border: 2px solid transparent;
	border-radius: 0.8rem;
	background: var(--tt-navy-950);
	overflow: hidden;
	transition: border-color var(--tt-fast) ease, transform var(--tt-fast) var(--tt-ease);
}

.project-gallery-thumb:hover,
.project-gallery-thumb:focus-visible,
.project-gallery-thumb.is-active {
	border-color: var(--tt-gold-500);
	transform: translateY(-2px);
}

.project-gallery-thumb picture,
.project-gallery-thumb img {
	display: block;
	width: 100%;
	height: 100%;
}

.project-gallery-thumb img {
	object-fit: cover;
	opacity: 0.72;
	transition: opacity var(--tt-fast) ease, transform var(--tt-medium) var(--tt-ease);
}

.project-gallery-thumb:hover img,
.project-gallery-thumb:focus-visible img,
.project-gallery-thumb.is-active img {
	opacity: 1;
	transform: scale(1.04);
}

.project-gallery-thumb span {
	position: absolute;
	right: 0.45rem;
	bottom: 0.4rem;
	display: inline-grid;
	place-items: center;
	width: 1.8rem;
	height: 1.8rem;
	border-radius: 999px;
	background: rgba(6, 20, 47, 0.82);
	color: var(--tt-white);
	font-family: var(--tt-font-heading);
	font-size: 0.82rem;
}

/* Accessible lightbox */
.project-gallery-lightbox {
	width: min(92vw, 1100px);
	max-width: none;
	padding: 0;
	border: 1px solid rgba(255, 255, 255, 0.16);
	border-radius: 1rem;
	background: var(--tt-navy-950);
	color: var(--tt-white);
	box-shadow: 0 40px 120px rgba(0, 0, 0, 0.52);
	overflow: hidden;
}

.project-gallery-lightbox::backdrop {
	background: rgba(6, 20, 47, 0.84);
	backdrop-filter: blur(7px);
}

.project-gallery-lightbox__close {
	position: absolute;
	z-index: 2;
	top: 0.75rem;
	right: 0.75rem;
	display: inline-grid;
	place-items: center;
	width: 2.8rem;
	height: 2.8rem;
	border: 1px solid rgba(255, 255, 255, 0.24);
	border-radius: 999px;
	background: rgba(6, 20, 47, 0.76);
	color: var(--tt-white);
	font-size: 1.7rem;
	line-height: 1;
}

.project-gallery-lightbox__media {
	aspect-ratio: 16 / 9;
	background: #000;
}

.project-gallery-lightbox__media img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: contain;
}

.project-gallery-lightbox__caption {
	padding: 1rem 1.25rem 1.25rem;
	color: rgba(255, 255, 255, 0.82);
	line-height: 1.6;
}

.related-projects__grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 1.25rem;
	margin-top: 2rem;
}

@keyframes tt-project-card-in {
	from {
		opacity: 0;
		transform: translateY(18px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.project-gallery-card.is-filter-entering {
	animation: tt-project-card-in 420ms var(--tt-ease) both;
}

@media (max-width: 1100px) {
	.project-gallery-grid,
	.project-category-overview__grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.project-detail-scope__grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.project-gallery-slide {
		grid-template-columns: minmax(0, 1.2fr) minmax(16rem, 0.8fr);
	}
}

@media (max-width: 820px) {
	.project-detail-intro__layout,
	.project-gallery-slide {
		grid-template-columns: 1fr;
	}

	.project-gallery-slider__viewport {
		min-height: clamp(46rem, 125vw, 54rem);
	}

	.project-gallery-slide__media {
		min-height: 24rem;
	}

	.project-gallery-slide__media::after {
		background: linear-gradient(180deg, transparent 60%, rgba(6, 20, 47, 0.22) 100%);
	}

	.project-gallery-slide__content::before {
		top: 0;
		right: 0;
		bottom: auto;
		width: auto;
		height: 2px;
	}
}

@media (max-width: 680px) {
	.project-gallery-grid,
	.project-category-overview__grid,
	.project-detail-scope__grid,
	.related-projects__grid {
		grid-template-columns: 1fr;
	}

	.project-gallery-filters {
		display: grid;
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.project-gallery-filter {
		justify-content: center;
		border-radius: 0.8rem;
	}

	.project-gallery-card__topline {
		flex-direction: column;
	}

	.project-detail-disclosure__inner {
		grid-template-columns: 1fr;
	}

	.project-detail-nav {
		top: 4.5rem;
	}

	.project-gallery-slider__viewport {
		min-height: 43rem;
	}

	.project-gallery-slide__media {
		min-height: 18rem;
	}

	.project-gallery-slide__expand span {
		display: none;
	}

	.project-gallery-slider__thumbs {
		gap: 0.45rem;
	}

	.project-gallery-thumb {
		border-radius: 0.55rem;
	}
}

@media (max-width: 420px) {
	.project-gallery-filters {
		grid-template-columns: 1fr;
	}

	.project-gallery-slider__viewport {
		min-height: 45rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	.project-gallery-card,
	.project-gallery-card__media img,
	.project-gallery-slide,
	.project-gallery-slide__media img,
	.project-gallery-filter,
	.project-gallery-thumb,
	.project-gallery-slider__arrow {
		transition: none !important;
	}

	.project-gallery-card.is-filter-entering {
		animation: none !important;
	}
}