/* =========================================================
   library.css（年金制度学習ライブラリー）
   ========================================================= */

.p-library__body {
	overflow: hidden;
}

.p-library__flower {
	position: absolute;
	top: 380px;
	right: 4%;
	width: 80px;
	pointer-events: none;
}

@media (max-width: 1240px) {
	.p-library__flower {
		display: none;
	}
}

.p-library__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 24px;
	max-width: 400px;
	margin-inline: auto;
}

@media (min-width: 600px) {
	.p-library__grid {
		grid-template-columns: repeat(2, 1fr);
		max-width: none;
	}
}

@media (min-width: 900px) {
	.p-library__grid {
		grid-template-columns: repeat(3, 1fr);
		gap: 24px 20px;
	}
}

.p-library__empty {
	grid-column: 1 / -1;
	padding: 40px 0;
	font-size: 1.5rem;
	text-align: center;
}

/* ---------------------------------------------------------
   カード
   --------------------------------------------------------- */
.p-lib-card__btn {
	display: flex;
	flex-direction: column;
	width: 100%;
	height: 100%;
	overflow: hidden;
	text-align: left;
	cursor: zoom-in;
	background: var(--color-primary);
	border-radius: 8px;
	transition: box-shadow var(--transition), transform var(--transition);
}

.p-lib-card__img {
	display: block;
	aspect-ratio: 3 / 4;
	overflow: hidden;
	background: var(--color-white);
}

.p-lib-card__img img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: top;
	transition: transform 0.5s ease;
}

.p-lib-card__body {
	display: block;
	flex: 1;
	padding: 14px 18px 22px;
}

.p-lib-card__tags {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}

.p-lib-card__tag {
	display: inline-block;
	padding: 2px 12px;
	font-size: 1.4rem;
	font-weight: 500;
	color: #1e7f80;
	background: #e0e9e9;
	border-radius: var(--radius-pill);
}

.p-lib-card[hidden] {
	display: none;
}

.p-lib-card__title {
	display: block;
	margin-top: 10px;
	font-size: 1.6rem;
	line-height: 1.7;
	color: var(--color-white);
}

@media (hover: hover) {
	.p-lib-card__btn:hover {
		box-shadow: 0 8px 20px rgba(30, 127, 128, 0.18);
		transform: translateY(-2px);
	}
	.p-lib-card__btn:hover .p-lib-card__img img {
		transform: scale(1.03);
	}
}

/* ---------------------------------------------------------
   拡大表示（lightbox.js）
   --------------------------------------------------------- */
body.is-lightbox-open {
	overflow: hidden;
}

.c-lightbox {
	position: fixed;
	inset: 0;
	z-index: 300;
	display: grid;
	place-items: center;
	padding: 24px 16px;
	background: rgba(0, 0, 0, 0.7);
	opacity: 0;
	transition: opacity 0.25s ease;
}

.c-lightbox.is-open {
	opacity: 1;
}

.c-lightbox[hidden] {
	display: none;
}

.c-lightbox__inner {
	position: relative;
	max-width: min(100%, 900px);
}

.c-lightbox__img {
	display: block;
	width: auto;
	max-width: 100%;
	max-height: calc(100vh - 48px);
	max-height: calc(100dvh - 48px);
	object-fit: contain;
	background: var(--color-white);
}

.c-lightbox__close {
	position: absolute;
	top: 8px;
	right: 8px;
	width: 44px;
	height: 44px;
	background: rgba(255, 255, 255, 0.85);
	border-radius: 50%;
}

.c-lightbox__close::before,
.c-lightbox__close::after {
	content: "";
	position: absolute;
	top: 50%;
	left: 50%;
	width: 26px;
	height: 2px;
	background: #555;
	transform: translate(-50%, -50%) rotate(45deg);
}

.c-lightbox__close::after {
	transform: translate(-50%, -50%) rotate(-45deg);
}