/* Playfair Flipbook viewer. Override the custom properties below in your theme to restyle. */
.pfb {
	--pfb-fg: #253047;
	--pfb-muted: #6b7486;
	--pfb-bar-bg: #ffffff;
	--pfb-bar-border: rgba(37, 48, 71, 0.12);
	--pfb-accent: #c85a72;
	--pfb-hover: rgba(37, 48, 71, 0.07);
	--pfb-backdrop: rgba(246, 247, 250, 0.97);
	position: relative;
	margin: 0 auto;
	width: 100%;
	box-sizing: border-box;
	font-family: inherit;
	color: var(--pfb-fg);
}
.pfb *, .pfb *::before, .pfb *::after { box-sizing: border-box; }

/* Stage: the book with an arrow either side. */
.pfb-stage {
	position: relative;
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 8px 0 4px;
}
.pfb-viewport {
	flex: 1 1 auto;
	min-width: 0;
	display: flex;
	justify-content: center;
	padding: 6px 0 22px;
}
.pfb-sizer { width: 100%; margin: 0 auto; }
.pfb-sizer.is-animated { transition: transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1); }
.pfb-book { margin: 0 auto; }
.pfb .stf__block { filter: drop-shadow(0 14px 22px rgba(20, 26, 40, 0.22)) drop-shadow(0 2px 4px rgba(20, 26, 40, 0.12)); }

.pfb-page { background: #ffffff; overflow: hidden; }
.pfb-page img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: contain;
	user-select: none;
	-webkit-user-select: none;
	pointer-events: none;
}

/* Buttons */
.pfb .pfb-btn {
	appearance: none;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 38px;
	height: 38px;
	padding: 0;
	border: 0;
	border-radius: 8px;
	background: transparent;
	color: var(--pfb-fg);
	cursor: pointer;
	text-decoration: none;
	transition: background-color 0.15s ease, color 0.15s ease, opacity 0.15s ease;
}
.pfb .pfb-btn:hover { background: var(--pfb-hover); color: var(--pfb-accent); }
.pfb .pfb-btn:focus-visible { outline: 2px solid var(--pfb-accent); outline-offset: 1px; }
.pfb .pfb-btn:disabled { opacity: 0.3; cursor: default; background: transparent; color: var(--pfb-fg); }
.pfb .pfb-btn[hidden] { display: none; }

/* Side arrows */
.pfb .pfb-side {
	flex: 0 0 auto;
	width: 44px;
	height: 72px;
	border-radius: 10px;
	color: var(--pfb-muted);
}
.pfb .pfb-side svg { width: 30px; height: 30px; stroke-width: 1.6; }
.pfb .pfb-side:disabled { opacity: 0; }

/* Toolbar */
.pfb-toolbar {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	width: max-content;
	max-width: 100%;
	margin: 0 auto;
	padding: 5px 8px;
	background: var(--pfb-bar-bg);
	border: 1px solid var(--pfb-bar-border);
	border-radius: 12px;
	box-shadow: 0 4px 14px rgba(20, 26, 40, 0.08);
}
.pfb-group { display: flex; align-items: center; gap: 2px; }
.pfb-divider { width: 1px; height: 22px; background: var(--pfb-bar-border); margin: 0 4px; }
.pfb-pager {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	margin: 0 6px;
	font-size: 14px;
	font-variant-numeric: tabular-nums;
	color: var(--pfb-muted);
	white-space: nowrap;
}
.pfb .pfb-page-input {
	width: 4.6em;
	height: 30px;
	padding: 0 6px;
	border: 1px solid var(--pfb-bar-border);
	border-radius: 6px;
	background: transparent;
	color: var(--pfb-fg);
	font: inherit;
	font-size: 14px;
	text-align: center;
}
.pfb .pfb-page-input:focus { outline: 2px solid var(--pfb-accent); outline-offset: 0; border-color: transparent; }

/* Page overview */
.pfb-grid {
	position: absolute;
	inset: 0 0 auto 0;
	min-height: 100%;
	max-height: 100%;
	z-index: 20;
	display: flex;
	flex-direction: column;
	background: var(--pfb-backdrop);
	border-radius: 12px;
	overflow: hidden;
}
.pfb-grid[hidden] { display: none; }
.pfb-grid-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 10px 12px 6px 18px;
	font-weight: 600;
}
.pfb-grid-list {
	flex: 1 1 auto;
	overflow-y: auto;
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
	gap: 18px 14px;
	padding: 8px 18px 20px;
}
.pfb .pfb-thumb {
	appearance: none;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 6px;
	padding: 0;
	border: 0;
	background: transparent;
	color: var(--pfb-muted);
	font: inherit;
	font-size: 12px;
	cursor: pointer;
}
.pfb .pfb-thumb img {
	width: 100%;
	height: auto;
	display: block;
	background: #fff;
	box-shadow: 0 2px 8px rgba(20, 26, 40, 0.15);
	outline: 2px solid transparent;
	outline-offset: 2px;
	transition: outline-color 0.15s ease, transform 0.15s ease;
}
.pfb .pfb-thumb:hover img { transform: translateY(-2px); }
.pfb .pfb-thumb:focus-visible img, .pfb .pfb-thumb.is-current img { outline-color: var(--pfb-accent); }
.pfb .pfb-thumb.is-current .pfb-thumb-num { color: var(--pfb-accent); font-weight: 600; }

/* Full screen */
.pfb.is-full {
	display: flex;
	flex-direction: column;
	justify-content: center;
	padding: 16px;
	background: #eef1f6;
	max-width: none !important;
}

@media (max-width: 700px) {
	.pfb .pfb-side { display: none; }
	.pfb .pfb-first, .pfb .pfb-last { display: none; }
	.pfb-viewport { padding-bottom: 14px; }
}

@media (prefers-reduced-motion: reduce) {
	.pfb-sizer.is-animated { transition: none; }
}

.pfb-notice { padding: 12px 16px; border: 1px dashed #c85a72; border-radius: 8px; }