/* ============================================================
   SW Fotogalerie – frontend
   ============================================================ */

.swg {
	--swg-gold: #5F7585;
	--swg-gold-soft: rgba(125, 149, 166, 0.5);
	--swg-gold-tint: rgba(125, 149, 166, 0.1);
	--swg-gold-tint-soft: rgba(125, 149, 166, 0.05);
	--swg-gold-muted: rgba(125, 149, 166, 0.62);
	--swg-row-h: 260px;
	--swg-gap: 12px;
	--swg-radius: 14px;
	--swg-ink: inherit;
	--swg-muted: #6B7378;
	--swg-line: #E4E9ED;
	--swg-surface: #F5F7F9;
	position: relative;
}

/* ---------- Taby kategorií ---------- */

.swg-tabs {
	display: flex;
	flex-wrap: wrap;
	gap: 0.25rem 1.75rem;
	justify-content: center;
	margin-bottom: 2.25rem;
	border-bottom: 1px solid var(--swg-line);
}

.swg-tab {
	appearance: none;
	background: none;
	border: 0;
	padding: 0.65rem 0.25rem 1rem;
	margin-bottom: -1px;
	font-size: 1.05rem;
	font-weight: 500;
	color: var(--swg-muted);
	cursor: pointer;
	position: relative;
	transition: color 0.2s ease;
}

/* Neaktivní podtržítko – ve výchozím stavu průhledné (= vzhled do verze 1.3). */
.swg-tab::before {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	height: 2px;
	background: var(--swg-tab-line-idle, transparent);
}

/* Aktivní podtržítko – vyjíždí přes neaktivní. */
.swg-tab::after {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	height: 2px;
	background: var(--swg-tab-line, var(--swg-gold));
	transform: scaleX(0);
	transition: transform 0.25s ease;
}

.swg-tab:hover { color: var(--swg-ink); }

.swg-tab.is-active {
	color: var(--swg-ink);
}
.swg-tab.is-active::after { transform: scaleX(1); }

/* ---------- Přepínání kategorií ---------- */

.swg-cat { display: none; }
.swg-cat.is-active { display: block; }

/* ---------- Rozcestník subkategorií ---------- */

.swg-subs {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 0.85rem;
	margin-bottom: 2.5rem;
}

.swg-sub-card {
	appearance: none;
	cursor: pointer;
	position: relative;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.15rem;
	min-width: 150px;
	padding: 0.85rem 1.5rem;
	text-align: center;
	background: var(--swg-btn-bg, var(--swg-gold-tint-soft, rgba(125, 149, 166, 0.05)));
	border: 1px solid var(--swg-btn-bd, var(--swg-line));
	border-radius: var(--swg-radius);
	color: var(--swg-ink);
	transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.swg-sub-card:hover {
	transform: translateY(-2px);
	background: var(--swg-btn-bg-hover, var(--swg-btn-bg, var(--swg-gold-tint-soft, rgba(125, 149, 166, 0.05))));
	border-color: var(--swg-btn-bd-hover, var(--swg-gold-soft));
}

.swg-sub-card:focus-visible {
	outline: 2px solid var(--swg-btn-bd-on, var(--swg-gold));
	outline-offset: 2px;
}

.swg-sub-card-title {
	font-size: 1.02rem;
	font-weight: 600;
	line-height: 1.2;
	color: var(--swg-btn-fg, var(--swg-gold-muted, rgba(125, 149, 166, 0.62)));
	transition: color 0.25s ease;
}

.swg-sub-card-count {
	font-size: 0.82rem;
	color: var(--swg-btn-sub, var(--swg-muted));
	transition: color 0.25s ease;
}

/* Aktivní subkategorie */
.swg-sub-card.is-active {
	border-color: var(--swg-btn-bd-on, var(--swg-gold));
	background: var(--swg-btn-bg-on, var(--swg-gold-tint, rgba(125, 149, 166, 0.1)));
}
.swg-sub-card.is-active:hover {
	border-color: var(--swg-btn-bd-on, var(--swg-gold));
	background: var(--swg-btn-bg-on, var(--swg-gold-tint, rgba(125, 149, 166, 0.1)));
}
.swg-sub-card.is-active .swg-sub-card-title {
	color: var(--swg-btn-fg-on, var(--swg-gold));
	font-weight: 700;
}
.swg-sub-card.is-active .swg-sub-card-count {
	color: var(--swg-btn-sub-on, var(--swg-muted));
}

/* ---------- Panel + justified mřížka ---------- */

.swg-panel { display: none; }
.swg-panel.is-active { display: block; }

.swg-grid {
	display: flex;
	flex-wrap: wrap;
	gap: var(--swg-gap);
}

.swg-item {
	position: relative;
	height: var(--swg-row-h);
	margin: 0;
	border-radius: var(--swg-radius);
	overflow: hidden;
	cursor: pointer;
	background: var(--swg-surface);
	/* flex-grow a flex-basis nastavuje PHP inline podle poměru stran */
}

.swg-item img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform 0.5s ease;
}

.swg-item:hover img { transform: scale(1.05); }

.swg-item-cap {
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	padding: 1.5rem 0.85rem 0.7rem;
	font-size: 0.82rem;
	color: #fff;
	background: linear-gradient(to top, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0));
	opacity: 0;
	transform: translateY(6px);
	transition: opacity 0.3s ease, transform 0.3s ease;
	pointer-events: none;
}

.swg-item:hover .swg-item-cap {
	opacity: 1;
	transform: translateY(0);
}

.swg-item-zoom {
	position: absolute;
	top: 0.7rem;
	right: 0.7rem;
	width: 38px;
	height: 38px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
	background: rgba(30, 35, 39, 0.45);
	color: #fff;
	opacity: 0;
	transform: scale(0.85);
	transition: opacity 0.3s ease, transform 0.3s ease;
}

.swg-item:hover .swg-item-zoom {
	opacity: 1;
	transform: scale(1);
}

/* ---------- Lightbox ---------- */

html.swg-lb-open { overflow: hidden; }

.swg-lightbox {
	position: fixed;
	inset: 0;
	z-index: 99999;
	display: flex;
	flex-direction: column;
	background: rgba(30, 35, 39, 0.95);
	opacity: 0;
	visibility: hidden;
	transition: opacity 0.25s ease, visibility 0.25s ease;
}

.swg-lightbox[aria-hidden="false"] {
	opacity: 1;
	visibility: visible;
}

.swg-lb-stage {
	flex: 1 1 auto;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 3.5rem 4.5rem 1rem;
	min-height: 0;
}

.swg-lb-img {
	max-width: 100%;
	max-height: 100%;
	object-fit: contain;
	border-radius: 6px;
	opacity: 0;
	transform: scale(0.98);
	transition: opacity 0.3s ease, transform 0.3s ease;
	box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

.swg-lb-img.is-loaded {
	opacity: 1;
	transform: scale(1);
}

.swg-lb-bar {
	flex: 0 0 auto;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	padding: 0 1.5rem 1.4rem;
	color: rgba(255, 255, 255, 0.85);
	font-size: 0.9rem;
}

.swg-lb-caption { line-height: 1.4; }
.swg-lb-counter {
	white-space: nowrap;
	letter-spacing: 0.04em;
	color: rgba(255, 255, 255, 0.6);
}

.swg-lb-close,
.swg-lb-nav {
	position: absolute;
	appearance: none;
	border: 0;
	background: rgba(255, 255, 255, 0.08);
	color: #fff;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: background 0.2s ease, transform 0.2s ease;
}

.swg-lb-close {
	top: 1rem;
	right: 1.2rem;
	width: 46px;
	height: 46px;
	border-radius: 50%;
	font-size: 1.8rem;
	line-height: 1;
}

.swg-lb-nav {
	top: 50%;
	transform: translateY(-50%);
	width: 54px;
	height: 54px;
	border-radius: 50%;
	font-size: 2rem;
	line-height: 1;
}

.swg-lb-prev { left: 1.2rem; }
.swg-lb-next { right: 1.2rem; }

.swg-lb-close:hover { background: rgba(255, 255, 255, 0.2); }
.swg-lb-nav:hover { background: rgba(255, 255, 255, 0.2); }
.swg-lb-prev:hover { transform: translateY(-50%) translateX(-3px); }
.swg-lb-next:hover { transform: translateY(-50%) translateX(3px); }

/* ---------- Hláška pro adminy ---------- */

.swg-empty-admin {
	padding: 1rem 1.25rem;
	border: 1px dashed var(--swg-gold, #5F7585);
	border-radius: 10px;
	color: #5F7585;
	background: rgba(125, 149, 166, 0.08);
}

/* ---------- Dark mode (web s [data-bs-theme=dark]) ---------- */

[data-bs-theme="dark"] .swg {
	--swg-line: rgba(255, 255, 255, 0.16);
	--swg-surface: rgba(255, 255, 255, 0.05);
	--swg-muted: rgba(255, 255, 255, 0.6);
}

/* ---------- Responsivita ---------- */

@media (max-width: 991.98px) {
	.swg { --swg-row-h: 220px; }
}

@media (max-width: 575.98px) {
	.swg {
		--swg-row-h: 180px;
		--swg-gap: 8px;
	}
	.swg-subs {
		gap: 0.6rem;
	}
	.swg-sub-card {
		min-width: 0;
		flex: 1 1 auto;
		padding: 0.7rem 1rem;
	}
	.swg-sub-card-title { font-size: 0.95rem; }
	.swg-lb-stage { padding: 3rem 0.75rem 0.75rem; }
	.swg-lb-nav { width: 44px; height: 44px; font-size: 1.6rem; }
	.swg-lb-prev { left: 0.5rem; }
	.swg-lb-next { right: 0.5rem; }
}

/* ---------- Respekt k prefers-reduced-motion ---------- */

@media (prefers-reduced-motion: reduce) {
	.swg-sub-card,
	.swg-item img,
	.swg-lb-img {
		transition: none;
	}
}