.featured-books {
	display: flex;
	align-items: center;
	flex-direction: column;
	gap: 10px;
	padding: 44px 16px 32px;
	overflow: hidden;
	background:
		radial-gradient(ellipse at center, rgba(0, 150, 200, 0.1), transparent 65%),
		linear-gradient(180deg, rgba(0, 0, 140, 0.025), transparent);
}

.featured-books > h2 {
	margin: 0;
	color: var(--secondaryColor);
	font-size: clamp(1.1rem, 2.4vw, 1.5rem);
	font-weight: 700;
	letter-spacing: 0.08em;
	text-align: center;
	text-transform: uppercase;
}

.featured-books-display {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: clamp(0px, 2.5vw, 40px);
	width: min(100%, 1020px);
	min-height: 420px;
	perspective: 1100px;
}

.showcase-book {
	position: relative;
	width: clamp(150px, 26vw, 285px);
	margin: 0;
	perspective: 1000px;
	animation: showcase-book-enter 700ms both;
	transition: transform 500ms ease;
}

.showcase-book-center {
	animation-delay: 140ms;
}

.showcase-book-right {
	animation-delay: 280ms;
}

.book-model {
	position: relative;
	transform: rotateY(-20deg) rotateX(3deg);
	transform-style: preserve-3d;
	transition: transform 450ms ease;
	animation: showcase-book-float 3.6s ease-in-out infinite;
}

.showcase-book-center .book-model {
	animation-delay: 350ms;
}

.showcase-book-right .book-model {
	animation-delay: 700ms;
}

.book-model::before {
	position: absolute;
	top: 7px;
	right: -12px;
	bottom: 5px;
	width: 13px;
	background: repeating-linear-gradient(
		90deg,
		#f7f1df 0,
		#f7f1df 2px,
		#d8d0bd 3px,
		#f7f1df 4px
	);
	content: "";
	transform: rotateY(90deg);
	transform-origin: left center;
}

.book-model::after {
	position: absolute;
	inset: 0 auto 0 0;
	width: 13px;
	background: linear-gradient(90deg, rgba(0, 0, 0, 0.36), rgba(255, 255, 255, 0.12));
	content: "";
	pointer-events: none;
}

.book-model .book-cover {
	display: block;
	width: 100%;
	aspect-ratio: 2 / 3;
	border-radius: 2px 5px 5px 2px;
	box-shadow: 12px 18px 24px rgba(0, 0, 0, 0.28);
	object-fit: cover;
	transform: translateZ(7px);
}

.showcase-book-left {
	z-index: 1;
	transform: translateY(12px) rotate(-8deg);
}

.showcase-book-center {
	z-index: 2;
	transform: translateY(-5px) scale(1.08);
}

.showcase-book-right {
	z-index: 1;
	transform: translateY(14px) rotate(8deg);
}

.showcase-book:hover .book-model {
	transform: rotateY(-12deg) rotateX(0) translateY(-8px);
}

.featured-books-link {
	display: flex;
	align-items: center;
	justify-content: center;
	position: relative;
	z-index: 3;
	height: 50px;
	min-width: 135px;
	max-width: 200px;
	margin: 70px 0 20px;
	padding: 10px 20px;
	outline: none;
	border: none;
	border-radius: 10px;
	background-color: var(--mainColor);
	color: var(--textColor);
	cursor: pointer;
	font-size: clamp(0.9em, 2.5vw, 1.1em);
	font-style: italic;
	text-align: center;
	text-decoration: none;
	transition: opacity 0.3s ease-in-out;
}

.featured-books-link:hover {
	opacity: 0.8;
}

.showcase-book:has(.book-spread) {
	cursor: pointer;
}

.book-spread {
	position: absolute;
	top: 0;
	left: -100%;
	display: block;
	width: 200%;
	max-width: none;
	height: 100%;
	border-radius: 3px;
	background: #fff;
	box-shadow: 0 18px 34px rgba(0, 0, 0, 0.3);
	object-fit: contain;
	opacity: 0;
	pointer-events: none;
	transition: opacity 250ms ease;
}

.book-model .book-cover {
	transform-origin: left center;
	transition:
		transform 800ms ease,
		opacity 100ms ease 300ms;
	backface-visibility: hidden;
}

.showcase-book.is-open {
	z-index: 5;
	transform: translate(var(--open-shift, 0), 0) scale(1.05);
	transition: transform 500ms ease;
}

.showcase-book.is-open .book-model {
	animation-play-state: paused;
	transform: translateX(50%);
}

.showcase-book.is-open .book-model::before,
.showcase-book.is-open .book-model::after {
	opacity: 0;
}

.showcase-book.is-open .book-spread {
	opacity: 1;
	transition-delay: 250ms;
}

.showcase-book.is-open .book-cover {
	opacity: 0;
	transition:
		transform 800ms ease,
		opacity 100ms ease 500ms;
	transform: translateZ(7px) rotateY(-180deg);
}

@keyframes showcase-book-enter {
	from {
		opacity: 0;
		translate: 0 24px;
	}
	to {
		opacity: 1;
		translate: 0 0;
	}
}

@keyframes showcase-book-float {
	0%,
	100% {
		translate: 0 0;
	}
	50% {
		translate: 0 -6px;
	}
}

@media screen and (max-width: 1024px) {
	.featured-books-display {
		min-height: 350px;
	}
}

@media screen and (max-width: 768px) {
	.featured-books-display {
		min-height: 290px;
	}

	.showcase-book {
		width: clamp(115px, 28vw, 215px);
	}
}

@media screen and (max-width: 480px) {
	.featured-books {
		padding: 24px 10px 18px;
	}

	.featured-books-display {
		min-height: 215px;
		gap: 0;
	}

	.showcase-book {
		width: 31vw;
		max-width: 150px;
	}
}

@media (prefers-reduced-motion: reduce) {
	.showcase-book,
	.book-model,
	.book-cover,
	.book-spread,
	.featured-books-link {
		animation: none;
		transition: none;
	}

	.showcase-book:hover .book-model,
	.featured-books-link:hover {
		transform: none;
		translate: none;
	}
}