/**
 * フロント: フォトギャラリー Lightbox のみ
 * Tailwind の flex + absolute 相互作用でコントロールが中央に寄るのを防ぐため、
 * オーバーレイは block、画像エリアだけ flex で中央寄せ。
 */

#hst-lightbox {
	display: none;
	position: fixed;
	inset: 0;
	z-index: 99999;
	background: rgba(0, 0, 0, 0.95);
	-webkit-backdrop-filter: blur(4px);
	backdrop-filter: blur(4px);
	overflow: hidden;
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.3s ease;
	/* 重要: 外側を flex にしない（absolute 子が中央に寄る現象を防ぐ） */
}

#hst-lightbox:not(.hidden) {
	display: block !important;
	pointer-events: auto;
}

#hst-lightbox.hst-lightbox--visible {
	opacity: 1;
}

#hst-lightbox .hst-lb-close,
#hst-lightbox .hst-lb-prev,
#hst-lightbox .hst-lb-next {
	position: fixed;
	z-index: 100000;
	margin: 0;
	padding: 0.5rem;
	background: transparent;
	border: 0;
	cursor: pointer;
	line-height: 1;
	color: rgba(255, 255, 255, 0.85);
}

#hst-lightbox .hst-lb-close svg {
	display: block;
	width: 2.5rem;
	height: 2.5rem;
}

#hst-lightbox .hst-lb-prev svg,
#hst-lightbox .hst-lb-next svg {
	display: block;
	width: 3rem;
	height: 3rem;
}

#hst-lightbox .hst-lb-close {
	top: 1rem;
	right: 1rem;
	left: auto;
	bottom: auto;
	transform: none;
}

#hst-lightbox .hst-lb-prev {
	left: 0.75rem;
	right: auto;
	top: 50%;
	transform: translateY(-50%);
	bottom: auto;
}

#hst-lightbox .hst-lb-next {
	right: 0.75rem;
	left: auto;
	top: 50%;
	transform: translateY(-50%);
	bottom: auto;
}

#hst-lightbox .hst-lb-close:hover,
#hst-lightbox .hst-lb-prev:hover,
#hst-lightbox .hst-lb-next:hover {
	color: #fff;
}

#hst-lightbox .hst-lb-stage {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 1rem;
	padding-top: 3.5rem;
	padding-bottom: 3.5rem;
	box-sizing: border-box;
	pointer-events: none;
}

#hst-lightbox .hst-lb-stage .hst-lb-img {
	pointer-events: auto;
	max-width: 100%;
	max-height: 100%;
	width: auto;
	height: auto;
	object-fit: contain;
	border-radius: 0.25rem;
	transition: opacity 0.2s ease, transform 0.25s ease;
}

#hst-lightbox .hst-lb-stage .hst-lb-img.is-dim {
	opacity: 0.5;
	transform: scale(0.98);
}

@media (min-width: 768px) {
	#hst-lightbox .hst-lb-close {
		top: 1.5rem;
		right: 1.5rem;
	}
	#hst-lightbox .hst-lb-close svg {
		width: 2.75rem;
		height: 2.75rem;
	}
	#hst-lightbox .hst-lb-prev {
		left: 1rem;
	}
	#hst-lightbox .hst-lb-next {
		right: 1rem;
	}
	#hst-lightbox .hst-lb-prev svg,
	#hst-lightbox .hst-lb-next svg {
		width: 4rem;
		height: 4rem;
	}
	#hst-lightbox .hst-lb-stage {
		padding: 3rem;
	}
}