/* ==========================================================
   Cover launcher (shortcode output)
   ========================================================== */
.fbm-launcher {
	display: inline-block;
	position: relative;
	cursor: pointer;
	border-radius: 6px;
	overflow: hidden;
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
	transition: transform 0.25s ease, box-shadow 0.25s ease;
	max-width: 320px;
	outline: none;
}
.fbm-launcher:hover,
.fbm-launcher:focus-visible {
	transform: translateY(-4px);
	box-shadow: 0 18px 40px rgba(0, 0, 0, 0.32);
}
.fbm-launcher-cover {
	position: relative;
	width: 100%;
}
.fbm-launcher-cover img {
	display: block;
	width: 100%;
	height: auto;
}
.fbm-launcher-overlay {
	position: absolute;
	inset: 0;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 10px;
	background: linear-gradient(to top, rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0) 45%);
	color: #fff;
	opacity: 0;
	transition: opacity 0.25s ease;
}
.fbm-launcher:hover .fbm-launcher-overlay,
.fbm-launcher:focus-visible .fbm-launcher-overlay {
	opacity: 1;
}
.fbm-launcher-icon {
	width: 52px;
	height: 52px;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.16);
	backdrop-filter: blur(4px);
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1px solid rgba(255, 255, 255, 0.4);
}
.fbm-launcher-label {
	position: absolute;
	bottom: 14px;
	font-size: 13px;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	font-weight: 600;
}

/* ==========================================================
   Fullscreen overlay
   ========================================================== */
body.fbm-noscroll {
	overflow: hidden;
}

.fbm-overlay {
	position: fixed;
	inset: 0;
	z-index: 999999;
	background: radial-gradient(ellipse at center, #2b2b2f 0%, #121214 100%);
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	transition: opacity 0.28s ease;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.fbm-overlay.fbm-overlay-visible {
	opacity: 1;
}

.fbm-loading {
	position: absolute;
	inset: 0;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 14px;
	color: #e6e6e6;
	z-index: 5;
	background: inherit;
}
.fbm-spinner {
	width: 42px;
	height: 42px;
	border-radius: 50%;
	border: 3px solid rgba(255, 255, 255, 0.2);
	border-top-color: #fff;
	animation: fbm-spin 0.9s linear infinite;
}
@keyframes fbm-spin {
	to { transform: rotate(360deg); }
}
.fbm-error-text {
	color: #ff8a8a;
	font-size: 15px;
}

.fbm-zoom-viewport {
	position: relative;
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
	touch-action: none;
}

.fbm-book-container {
	position: relative;
	/* Fill the zoom viewport in both axes. StPageFlip's own "stretch" size
	   mode reads this element's actual on-screen width/height (offsetWidth/
	   offsetHeight) to fit the book — with the flex parent's default
	   align-items: center, this element only ever received its width
	   (100%) and fell back to its JS-set min-height (a fixed, screen-size-
	   independent 300px) for height. That mismatch between a full-width /
	   fixed-tiny-height measuring box and the actual square-ish viewer
	   area was what let the computed page size run past the visible area
	   on some screens and get clipped by .fbm-zoom-viewport's overflow:
	   hidden. Giving it the full box here lets StPageFlip's built-in
	   aspect-ratio-preserving fit (already correct) contain the page
	   fully within the real available space — nothing about the flip
	   engine, DOM rendering mode, or image loading changes. */
	width: 100%;
	height: 100%;
	max-width: 100%;
	max-height: 100%;
	transform-origin: center center;
	transition: transform 0.18s ease-out;
}
.fbm-overlay.fbm-zoomed .fbm-book-container {
	pointer-events: none; /* let the viewport handle pan-drag while zoomed */
	transition: none;
}
.fbm-zoom-viewport {
	cursor: default;
}
.fbm-overlay.fbm-zoomed .fbm-zoom-viewport {
	cursor: grab;
}

/* Page content: a plain, native-resolution <img> — this is what keeps
   normal view and zoomed view equally sharp (no canvas resampling). */
.fbm-book-container .page {
	background: #1c1c1e;
}
.fbm-book-container .page-content {
	position: relative;
	width: 100%;
	height: 100%;
	overflow: hidden;
	background: #f4f2ee;
}
.fbm-book-container .page-image {
	display: block;
	width: 100%;
	height: 100%;
	/* "contain", not "cover" — a magazine reader must never crop page
	   content. Any (usually sub-pixel) mismatch between an individual
	   page's aspect ratio and the book's overall page slot now simply
	   letterboxes against .page-content's background instead of cutting
	   off text/images at the edges. The <img> itself, its src, and its
	   native resolution are completely unchanged. */
	object-fit: contain;
	-ms-interpolation-mode: bicubic;
	image-rendering: -webkit-optimize-contrast;
	user-select: none;
	-webkit-user-drag: none;
	opacity: 0;
	transition: opacity 0.3s ease;
}
.fbm-book-container .page-image.fbm-loaded {
	opacity: 1;
}
.fbm-book-container .page-shadow {
	position: absolute;
	inset: 0;
	pointer-events: none;
	background: linear-gradient(to right, rgba(0, 0, 0, 0.12), transparent 6%, transparent 94%, rgba(0, 0, 0, 0.12));
}

/* ==========================================================
   Controls
   ========================================================== */
.fbm-zoom-btn,
.fbm-page-indicator,
.fbm-close-btn {
	position: absolute;
	z-index: 20;
	background: rgba(20, 20, 22, 0.55);
	backdrop-filter: blur(6px);
	color: #f4f4f4;
	border: 1px solid rgba(255, 255, 255, 0.14);
	border-radius: 999px;
	font-size: 13px;
	letter-spacing: 0.02em;
}

.fbm-zoom-btn {
	top: 22px;
	left: 50%;
	transform: translateX(-50%);
	display: flex;
	align-items: center;
	gap: 6px;
	padding: 9px 18px;
	cursor: pointer;
	transition: background 0.2s ease, transform 0.2s ease;
}
.fbm-zoom-btn:hover {
	background: rgba(40, 40, 44, 0.75);
}
.fbm-zoom-btn.fbm-zoom-active {
	background: rgba(255, 255, 255, 0.92);
	color: #17171a;
}

.fbm-page-indicator {
	bottom: 22px;
	left: 50%;
	transform: translateX(-50%);
	padding: 8px 18px;
	font-variant-numeric: tabular-nums;
}

.fbm-close-btn {
	top: 22px;
	right: 22px;
	width: 40px;
	height: 40px;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	transition: background 0.2s ease, transform 0.2s ease;
}
.fbm-close-btn:hover {
	background: rgba(220, 40, 40, 0.75);
	transform: rotate(90deg);
}

/* Arrows: large, bold, extreme left/right, vertically centered */
.fbm-arrow {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	z-index: 20;
	width: 56px;
	height: 56px;
	border-radius: 50%;
	background: rgba(20, 20, 22, 0.5);
	backdrop-filter: blur(6px);
	border: 1px solid rgba(255, 255, 255, 0.16);
	color: #fff;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	transition: background 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}
.fbm-arrow:hover {
	background: rgba(255, 255, 255, 0.92);
	color: #17171a;
}
.fbm-arrow:disabled {
	opacity: 0.25;
	cursor: default;
}
.fbm-arrow:disabled:hover {
	background: rgba(20, 20, 22, 0.5);
	color: #fff;
}
.fbm-arrow-left {
	left: 18px;
}
.fbm-arrow-right {
	right: 18px;
}

/* ==========================================================
   Mobile: single page mode, larger touch targets
   ========================================================== */
@media (max-width: 800px) {
	.fbm-arrow {
		width: 46px;
		height: 46px;
	}
	.fbm-arrow-left { left: 8px; }
	.fbm-arrow-right { right: 8px; }
	.fbm-zoom-btn span { display: none; }
	.fbm-zoom-btn { padding: 10px; }
	.fbm-page-indicator { font-size: 12px; padding: 7px 14px; }
	.fbm-close-btn { top: 12px; right: 12px; }
	.fbm-zoom-btn { top: 12px; }
}

@media (prefers-reduced-motion: reduce) {
	.fbm-overlay, .fbm-book-container, .fbm-launcher, .fbm-launcher-overlay {
		transition: none !important;
	}
}