/* ============================================================
   Reusable Portfolio section (mockup pages 2-3).
   Staging 2026-08-10.
   ============================================================ */
.usd-portfolio {
	box-sizing: border-box;
	width: 100%;
	max-width: 1250px;
	margin: 0 auto;
	padding: 72px 0 88px;
}

.usd-portfolio__title {
	margin: 0 0 14px;
	color: #111;
	font-size: 30px;
	font-weight: 600;
	letter-spacing: 2px;
	text-align: center;
	text-transform: uppercase;
}

.usd-portfolio__filters {
	display: flex;
	justify-content: center;
	gap: 12px;
	margin-bottom: 35px;
	flex-wrap: wrap;
}
.usd-portfolio__filter {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 10px 26px;
	font-size: 12px;
	letter-spacing: 2px;
	text-transform: uppercase;
	border-radius: 999px;
	border: 1px solid #111;
	background: #fff;
	color: #111;
	cursor: pointer;
	text-decoration: none;
	transition: background .28s cubic-bezier(.16,1,.3,1), color .28s cubic-bezier(.16,1,.3,1);
}
.usd-portfolio__filter:not(.is-active):hover,
.usd-portfolio__filter:not(.is-active):focus-visible {
	background: #eee;
	color: #111;
}
.usd-portfolio__filter.is-active,
.usd-portfolio__filter.is-active:hover,
.usd-portfolio__filter.is-active:focus-visible {
	background: #111;
	color: #fff;
}

.usd-portfolio__grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 12px;
}
.usd-portfolio__grid[aria-busy="true"] {
	pointer-events: none;
}
.usd-portfolio__tile {
	position: relative;
	display: block;
	min-width: 0;
	aspect-ratio: 4 / 3;
	overflow: hidden;
	background: #e8e6e2;
	color: #fff;
	text-decoration: none;
	will-change: opacity, transform;
}
.usd-portfolio__tile[hidden] {
	display: none !important;
}
.usd-portfolio__tile::after {
	position: absolute;
	inset: 0;
	z-index: 1;
	content: "";
	background: rgba(0, 0, 0, .42);
	opacity: 0;
	transition: opacity .3s cubic-bezier(.16,1,.3,1);
}
.usd-portfolio__image,
.usd-portfolio__image img {
	display: block;
	width: 100%;
	height: 100%;
}
.usd-portfolio__image {
	position: absolute;
	inset: 0;
}
.usd-portfolio__image img {
	object-fit: cover;
	transition: transform .42s cubic-bezier(.16,1,.3,1);
}
.usd-portfolio__name {
	position: absolute;
	inset: 0;
	z-index: 2;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 24px;
	color: #fff;
	font-size: 20px;
	font-weight: 600;
	line-height: 1.25;
	letter-spacing: 1px;
	text-align: center;
	text-transform: uppercase;
	opacity: 0;
	transition: opacity .3s cubic-bezier(.16,1,.3,1);
}
.usd-portfolio__tile:hover,
.usd-portfolio__tile:focus,
.usd-portfolio__tile:visited {
	color: #fff;
}
.usd-portfolio__tile:hover::after,
.usd-portfolio__tile:focus-visible::after,
.usd-portfolio__tile:hover .usd-portfolio__name,
.usd-portfolio__tile:focus-visible .usd-portfolio__name {
	opacity: 1;
}
.usd-portfolio__tile:hover .usd-portfolio__image img,
.usd-portfolio__tile:focus-visible .usd-portfolio__image img {
	transform: scale(1.025);
}
.usd-portfolio__tile:focus-visible {
	outline: 2px solid #111;
	outline-offset: 3px;
}

@media (max-width: 1298px) {
	.usd-portfolio {
		padding-right: 24px;
		padding-left: 24px;
	}
}

@media (hover: none) {
	.usd-portfolio__tile::after { opacity: .28; }
	.usd-portfolio__name { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
	.usd-portfolio__filter,
	.usd-portfolio__tile::after,
	.usd-portfolio__image img,
	.usd-portfolio__name {
		transition: none !important;
	}
}

@media (max-width: 782px) {
	.usd-portfolio { padding: 40px 20px 64px; }
	.usd-portfolio__title { font-size: 26px; }
	.usd-portfolio__filters { gap: 8px; margin-bottom: 35px; }
	.usd-portfolio__filter {
		padding: 8px 12px;
		font-size: 10px;
		letter-spacing: 1.2px;
	}
	.usd-portfolio__grid { grid-template-columns: 1fr; }
	.usd-portfolio__name { padding: 20px; font-size: 18px; }
}