/* ===== Projects archive ===== */

.projects-archive {
	padding: var(--gutter);
	padding-top: calc(var(--nav-h) + 1.25rem + var(--gutter));
	max-width: var(--maxw);
	margin: 0 auto;
	min-height: 100vh;
}

/* Heading + filter chips on one row */
.projects-head {
	display: flex;
	align-items: flex-end;
	justify-content: space-between;
	gap: 1.5rem;
	flex-wrap: wrap;
	margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.projects-head--center {
	flex-direction: column;
	align-items: center;
	text-align: center;
}

.projects-head--center .projects-filter {
	justify-content: center;
}

.projects-heading {
	font-size: clamp(2.475rem, 6.93vw, 5.445rem);
	font-weight: 500;
	letter-spacing: -0.04em;
	line-height: 1;
	color: var(--ink);
}

/* Filter chips */
.projects-filter {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	align-items: center;
	justify-content: center;
	width: 100%;
	padding-bottom: 0.25rem;
}

.filter-chip {
	padding: 0.45rem 1.1rem;
	border-radius: 999px;
	border: 0.5px solid rgba(27, 34, 44, 0.2);
	background: transparent;
	color: var(--ink);
	font-size: 0.82rem;
	font-family: 'Anthine', sans-serif;
	letter-spacing: 0.02em;
	cursor: none;
	transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease,
	            transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.filter-chip:hover {
	background: rgba(27, 34, 44, 0.07);
	transform: scale(1.08);
}

.filter-chip.is-active {
	background: var(--ink);
	color: var(--paper);
	border-color: var(--ink);
}

/* Grid: 3-col 1:1 square cards */
.projects-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 30px;
}

/* ===== Project card ===== */

.project-card {
	aspect-ratio: 1 / 1;
	background-color: var(--ink-deep);
	background-size: cover;
	background-position: center;
	border-radius: 10px;
	position: relative;
	overflow: hidden;
	cursor: none;
	transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Subtle darkening overlay on hover */
.project-card::before {
	content: '';
	position: absolute;
	inset: 0;
	background: rgba(0, 0, 0, 0);
	transition: background 0.35s ease;
	z-index: 1;
}

.project-card:hover {
	transform: scale(1.025);
}

.project-card:hover::before {
	background: rgba(0, 0, 0, 0.18);
}

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

.project-card__cover {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	z-index: 1;
	transition: opacity 0.5s ease;
}

.project-card--has-video:hover .project-card__cover { opacity: 0; }

.project-card__video {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	z-index: 0;
	opacity: 0;
	transition: opacity 0.5s ease;
}

.project-card--has-video:hover .project-card__video { opacity: 1; }

.project-card__meta {
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	padding: 2.5rem 0.9rem 0.75rem;
	background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.6));
	z-index: 2;
	display: flex;
	flex-direction: row;
	align-items: baseline;
	justify-content: space-between;
	gap: 0.5rem;
}

.project-card__title {
	display: block;
	font-size: 1.2rem;
	font-weight: 600;
	color: var(--paper);
	margin-bottom: 0.1rem;
	letter-spacing: 0.01em;
}

.project-card__cat {
	display: block;
	font-size: 1.1rem;
	color: rgba(163, 166, 168, 0.85);
	letter-spacing: 0.02em;
}

.projects-empty {
	color: var(--grey);
	font-size: 0.9rem;
	padding: 3rem 0;
	grid-column: 1 / -1;
}

/* ===== Full-screen overlay (sohub-style expand) ===== */

.project-overlay {
	position: fixed;
	inset: 0;
	z-index: 200;
	display: none;
	background: var(--ink-deep);
	/* transform set by JS to start from the card's size/position */
	will-change: transform, border-radius;
	overflow: hidden;
}

/* Background image / video */
.po-media {
	position: absolute;
	inset: 0;
	background-size: cover;
	background-position: center;
	/* JS sets background-image */
}

.po-video {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	opacity: 0;
	transition: opacity 0.4s ease 0.35s;
}

.project-overlay.is-open .po-video {
	opacity: 1;
}

/* Gradient so text reads on any image */
.po-content {
	position: absolute;
	inset: 0;
	display: flex;
	flex-direction: column;
	justify-content: flex-end;
	padding: clamp(1.5rem, 4vw, 3.5rem);
	background: linear-gradient(
		to top,
		rgba(14, 18, 24, 0.92) 0%,
		rgba(14, 18, 24, 0.4)  45%,
		transparent             75%
	);
	opacity: 0;
	transition: opacity 0.3s ease;
}

.project-overlay.is-open .po-content {
	opacity: 1;
}

/* Close button */
.po-close {
	position: absolute;
	top: clamp(1rem, 3vw, 2rem);
	right: clamp(1rem, 3vw, 2rem);
	width: 48px;
	height: 48px;
	border-radius: 999px;
	background: var(--paper);
	border: none;
	font-size: 1rem;
	color: var(--ink);
	display: flex;
	align-items: center;
	justify-content: center;
	line-height: 1;
	transition: background 0.2s ease, transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
	flex-shrink: 0;
}

.po-close:hover {
	background: #fff;
	transform: scale(1.12);
}

/* Bottom-left content */
.po-foot {
	display: flex;
	flex-direction: column;
	gap: 0.6rem;
}

.po-cat {
	display: inline-block;
	font-size: 0.7rem;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--grey-light);
}

.po-title {
	font-size: clamp(2.2rem, 7vw, 6rem);
	font-weight: 300;
	letter-spacing: -0.04em;
	line-height: 1;
	color: var(--paper);
}

.po-excerpt {
	font-size: 0.9rem;
	line-height: 1.65;
	color: rgba(163, 166, 168, 0.88);
	max-width: 733px;
	margin-top: 0.4rem;
	max-height: 12vh;
	overflow-y: auto;
	scrollbar-width: thin;
	scrollbar-color: rgba(231, 233, 234, 0.25) transparent;
}

.po-excerpt::-webkit-scrollbar { width: 4px; }
.po-excerpt::-webkit-scrollbar-track { background: transparent; }
.po-excerpt::-webkit-scrollbar-thumb { background: rgba(231,233,234,0.25); border-radius: 999px; }

.po-cta-group {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
	margin-top: 0.8rem;
}

.po-cta {
	display: inline-flex;
	align-items: center;
	gap: 0.4em;
	padding: 0.85rem 2.2rem;
	border-radius: 999px;
	background: var(--paper);
	color: var(--ink);
	font-size: 0.88rem;
	font-weight: 600;
	letter-spacing: 0.02em;
	transition: background 0.2s ease, transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.po-cta:hover {
	background: #fff;
	transform: scale(1.05);
}

.po-cta--alt {
	background: rgba(231, 233, 234, 0.15);
	color: var(--paper);
}

.po-cta--alt:hover {
	background: rgba(231, 233, 234, 0.28);
}

/* ===== Overlay nav (logo pill) ===== */
.po-nav {
	position: absolute;
	top: 1.25rem;
	left: 0;
	right: 0;
	padding: 0 var(--gutter);
	pointer-events: none;
	z-index: 10;
}

.po-nav__inner {
	pointer-events: auto;
	display: inline-flex;
	align-items: center;
	gap: 0.55rem;
	background: #fff;
	border-radius: 999px;
	padding: 0 2rem;
	height: var(--nav-h);
	line-height: 1;
	text-decoration: none;
	transition: background 0.2s ease, transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.po-nav__inner:hover {
	background: #f0f2f3;
	transform: scale(1.03);
}

.po-nav__mark {
	font-size: 22px;
	font-weight: 600;
	letter-spacing: 0.02em;
	color: var(--ink);
	white-space: nowrap;
}

.po-nav__sep {
	font-size: 22px;
	font-weight: 400;
	color: var(--ink);
	opacity: 0.28;
}

.po-nav__based {
	font-family: 'Libre Baskerville', serif;
	font-style: italic;
	font-size: 18px;
	letter-spacing: 0.025em;
	color: var(--ink);
	opacity: 0.38;
	white-space: nowrap;
}

@media (max-width: 600px) {
	/* Overlay nav mobile: ซ่อน sep + Bangkok Based เหลือแค่โลโก้ */
	.po-nav__sep,
	.po-nav__based { display: none; }

	/* po-close ชิดขวา line-up กับ nav pill */
	.po-close {
		top: calc(1.25rem + (var(--nav-h) - 48px) / 2);
		right: var(--gutter);
	}
}

/* ===== Single project ===== */

.project-single {
	padding-top: calc(var(--nav-h) + 1.25rem + var(--nav-h));
	min-height: 100vh;
}

.project-single__hero {
	width: min(var(--maxw), 100vw - 4 * var(--gutter));
	margin-left: auto;
	margin-right: auto;
	border-radius: 30px;
	background: var(--ink-deep);
	aspect-ratio: 16 / 9;
	overflow: hidden;
}

.project-single__video,
.project-single__cover {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.project-single__content {
	width: min(var(--maxw), 100vw - 4 * var(--gutter));
	margin: 0 auto;
	padding: 50px 0 clamp(2rem, 5vw, 4rem);
}

.project-single__cat {
	display: inline-block;
	font-size: 0.72rem;
	letter-spacing: 0.1em;
	color: var(--grey);
	text-transform: uppercase;
	margin-bottom: 0.75rem;
}

.project-single__title {
	font-size: clamp(2rem, 6vw, 4.5rem);
	font-weight: 700;
	letter-spacing: -0.04em;
	line-height: 1;
	color: var(--ink);
	margin-bottom: 2rem;
}

.project-single__body {
	column-count: 2;
	column-gap: clamp(2rem, 4vw, 4rem);
	font-size: 1rem;
	line-height: 1.75;
	color: var(--ink);
	margin-bottom: 2.5rem;
}

.project-single__body p {
	break-inside: avoid;
	margin-bottom: 1em;
}

.project-single__link {
	display: inline-flex;
	align-items: center;
	gap: 0.4em;
	padding: 0.8rem 2rem;
	border-radius: 999px;
	background: var(--ink);
	color: var(--paper);
	font-size: 0.88rem;
	letter-spacing: 0.02em;
	margin-bottom: 3rem;
	transition: background 0.25s ease, transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.project-single__link:hover {
	background: var(--ink-deep-hover);
	transform: scale(1.04);
}

.project-single__back {
	display: inline-block;
	font-size: 0.82rem;
	color: var(--grey);
	letter-spacing: 0.03em;
	transition: color 0.2s ease;
}

.project-single__back:hover {
	color: var(--ink);
}

/* Logo */
.project-single__logo {
	max-height: 48px;
	width: auto;
	margin-bottom: 1.5rem;
	object-fit: contain;
	object-position: left;
}

/* Gallery */
.project-single__gallery {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 20px;
	padding: 0 0 clamp(3rem, 6vw, 5rem);
	width: min(var(--maxw), 100vw - 4 * var(--gutter));
	margin: 0 auto;
}

.project-single__gallery img {
	width: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	border-radius: 8px;
	display: block;
}

/* ===== Mobile ===== */

@media (max-width: 600px) {
	.projects-head {
		flex-direction: column;
		align-items: flex-start;
	}

	.projects-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: var(--gutter);
	}

	.project-card__meta {
		flex-direction: column;
		align-items: flex-start;
	}

	.project-single__body { column-count: 1; }
	.project-single__gallery { grid-template-columns: 1fr; }

	.project-single__hero,
	.project-single__content,
	.project-single__gallery {
		width: calc(100vw - 2 * var(--gutter));
	}

	.project-single__hero {
		aspect-ratio: 4 / 3;
	}
}