.fme-culture-book {
	--fme-book-red: #e60000;
	--fme-book-text: #3f3f3f;
	--fme-book-surface: #ffffff;
	--fme-book-toolbar: #f3f3f1;
	--fme-book-stage: #e7e7e4;
	--fme-book-shadow: 0 18px 42px rgba(0, 0, 0, 0.22);
	width: 100%;
	max-width: 1200px;
	margin: 0 auto 60px;
	color: var(--fme-book-text);
	font-family: inherit;
}

.fme-culture-book *,
.fme-culture-book *::before,
.fme-culture-book *::after {
	box-sizing: border-box;
}

.fme-culture-book__toolbar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: center;
	gap: 10px 14px;
	padding: 12px 14px;
	border-radius: 4px 4px 0 0;
	background: var(--fme-book-toolbar);
	box-shadow: 0 5px 14px rgba(0, 0, 0, 0.08);
}

.fme-culture-book__group {
	display: inline-flex;
	align-items: center;
	gap: 8px;
}

.fme-culture-book__button,
.fme-culture-book__download {
	display: inline-flex;
	min-height: 40px;
	align-items: center;
	justify-content: center;
	gap: 7px;
	margin: 0;
	padding: 8px 13px;
	border: 1px solid transparent;
	border-radius: 3px;
	background: #ffffff;
	color: var(--fme-book-text);
	font: inherit;
	font-size: 15px;
	font-weight: 600;
	line-height: 1;
	text-decoration: none;
	box-shadow: 0 2px 7px rgba(0, 0, 0, 0.08);
	cursor: pointer;
	transition: border-color 160ms ease, color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.fme-culture-book__button:hover:not(:disabled),
.fme-culture-book__button:focus-visible,
.fme-culture-book__download:hover,
.fme-culture-book__download:focus-visible {
	border-color: var(--fme-book-red);
	color: var(--fme-book-red);
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.13);
	transform: translateY(-1px);
}

.fme-culture-book__button:focus-visible,
.fme-culture-book__download:focus-visible,
.fme-culture-book__page-input:focus-visible,
.fme-culture-book__viewport:focus-visible {
	outline: 3px solid rgba(230, 0, 0, 0.28);
	outline-offset: 2px;
}

.fme-culture-book__button:disabled {
	opacity: 0.42;
	cursor: not-allowed;
	box-shadow: none;
}

.fme-culture-book__button--icon {
	min-width: 40px;
	padding-right: 10px;
	padding-left: 10px;
	font-size: 20px;
}

.fme-culture-book__page-label {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	margin: 0;
	font-size: 15px;
	font-weight: 600;
}

.fme-culture-book__page-input {
	width: 60px;
	height: 38px;
	margin: 0;
	padding: 5px 7px;
	border: 1px solid #c8c8c5;
	border-radius: 3px;
	background: #ffffff;
	color: var(--fme-book-text);
	font: inherit;
	text-align: center;
}

.fme-culture-book__zoom {
	display: inline-block;
	min-width: 52px;
	font-size: 14px;
	font-variant-numeric: tabular-nums;
	text-align: center;
}

.fme-culture-book__viewport {
	position: relative;
	display: grid;
	min-height: 560px;
	place-items: center;
	overflow: hidden;
	padding: clamp(18px, 3vw, 40px);
	border-radius: 0 0 4px 4px;
	background:
		radial-gradient(circle at 50% 20%, rgba(255, 255, 255, 0.82), transparent 50%),
		linear-gradient(145deg, #eeeeeb, var(--fme-book-stage));
	touch-action: pan-y;
}

.fme-culture-book__book {
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 18px;
	max-width: 100%;
	perspective: 1800px;
	transform-style: preserve-3d;
}

.fme-culture-book__book[data-mode="spread"]::after {
	position: absolute;
	z-index: 4;
	top: 1%;
	bottom: 1%;
	left: 50%;
	width: 1px;
	background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.22) 8%, rgba(0, 0, 0, 0.22) 92%, transparent);
	box-shadow: 0 0 13px rgba(0, 0, 0, 0.3);
	content: "";
	pointer-events: none;
}

.fme-culture-book__page {
	position: relative;
	flex: 0 0 auto;
	overflow: hidden;
	border: 1px solid rgba(0, 0, 0, 0.1);
	background: var(--fme-book-surface);
	box-shadow: var(--fme-book-shadow);
	backface-visibility: hidden;
	transform: rotateY(0deg);
	transform-style: preserve-3d;
	transition: transform 180ms ease, opacity 180ms ease;
}

.fme-culture-book__page[data-side="left"] {
	transform-origin: right center;
}

.fme-culture-book__page[data-side="right"] {
	transform-origin: left center;
}

.fme-culture-book.is-flipping-next .fme-culture-book__page[data-side="right"],
.fme-culture-book.is-flipping-next .fme-culture-book__book[data-mode="single"] .fme-culture-book__page[data-side="left"] {
	opacity: 0.5;
	transform: rotateY(-18deg);
}

.fme-culture-book.is-flipping-previous .fme-culture-book__page[data-side="left"],
.fme-culture-book.is-flipping-previous .fme-culture-book__book[data-mode="single"] .fme-culture-book__page[data-side="left"] {
	opacity: 0.5;
	transform: rotateY(18deg);
}

.fme-culture-book__canvas {
	display: block;
	max-width: none;
	height: auto;
	background: #ffffff;
}

.fme-culture-book__page-number {
	position: absolute;
	right: 8px;
	bottom: 6px;
	min-width: 26px;
	padding: 2px 5px;
	border-radius: 12px;
	background: rgba(255, 255, 255, 0.82);
	color: #555555;
	font-size: 11px;
	line-height: 1.4;
	text-align: center;
}

.fme-culture-book__loading {
	position: absolute;
	z-index: 8;
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 12px 16px;
	border-radius: 3px;
	background: rgba(255, 255, 255, 0.94);
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
	font-weight: 600;
}

.fme-culture-book__loading::before {
	width: 18px;
	height: 18px;
	border: 2px solid #d4d4d1;
	border-top-color: var(--fme-book-red);
	border-radius: 50%;
	content: "";
	animation: fme-book-spin 750ms linear infinite;
}

.fme-culture-book__status,
.fme-culture-book__error {
	margin: 10px 0 0;
	font-size: 14px;
	text-align: center;
}

.fme-culture-book__error {
	padding: 15px;
	border-left: 4px solid var(--fme-book-red);
	background: #fff4f4;
	color: #7b1111;
}

.fme-culture-book__error a {
	color: var(--fme-book-red);
	font-weight: 600;
}

.fme-culture-book [hidden] {
	display: none !important;
}

.fme-culture-book:fullscreen {
	display: flex;
	width: 100vw;
	max-width: none;
	height: 100vh;
	margin: 0;
	flex-direction: column;
	background: var(--fme-book-stage);
}

.fme-culture-book:fullscreen .fme-culture-book__toolbar {
	border-radius: 0;
}

.fme-culture-book:fullscreen .fme-culture-book__viewport {
	min-height: 0;
	flex: 1;
	border-radius: 0;
}

@keyframes fme-book-spin {
	to {
		transform: rotate(360deg);
	}
}

@media only screen and (max-width: 767px) {
	.fme-culture-book {
		margin-bottom: 38px;
	}

	.fme-culture-book__toolbar {
		justify-content: space-between;
		gap: 8px;
		padding: 10px;
	}

	.fme-culture-book__group {
		gap: 6px;
	}

	.fme-culture-book__button,
	.fme-culture-book__download {
		min-height: 38px;
		padding: 8px 10px;
		font-size: 14px;
	}

	.fme-culture-book__button-text {
		position: absolute;
		width: 1px;
		height: 1px;
		overflow: hidden;
		clip: rect(0 0 0 0);
		white-space: nowrap;
	}

	.fme-culture-book__viewport {
		min-height: 440px;
		padding: 16px 10px;
	}

	.fme-culture-book__book {
		gap: 0;
	}

	.fme-culture-book__book::after {
		display: none;
	}
}

@media (prefers-reduced-motion: reduce) {
	.fme-culture-book__button,
	.fme-culture-book__download,
	.fme-culture-book__page {
		transition: none;
	}

	.fme-culture-book__loading::before {
		animation-duration: 1500ms;
	}
}