/* 3R Urban Brochure Viewer */
.rur-bk {
	--rur-green: #067963;
	--rur-bg: #f4f4ef;
	position: relative;
	display: flex;
	flex-direction: column;
	background: var(--rur-bg);
	padding: 28px 16px 12px;
	outline: none;
	user-select: none;
	-webkit-user-select: none;
}
.rur-bk:focus-visible { box-shadow: inset 0 0 0 2px var(--rur-green); }
.rur-bk *, .rur-bk *::before, .rur-bk *::after { box-sizing: border-box; }

.rur-bk .rur-bk-stage { position: relative; display: flex; justify-content: center; align-items: center; min-height: 240px; touch-action: pan-y; }

/* Book */
.rur-bk .rur-bk-book {
	--pw: 360px;
	--ph: 510px;
	position: relative;
	width: calc(var(--pw) * 2);
	height: var(--ph);
	perspective: 2400px;
	transition: transform .7s cubic-bezier(.645, .045, .355, 1);
}
.rur-bk .rur-bk-book.is-closed { transform: translateX(calc(var(--pw) * -0.5)); }
.rur-bk .rur-bk-book.is-end { transform: translateX(calc(var(--pw) * 0.5)); }
.rur-bk .rur-bk-book.is-single { width: var(--pw); transform: none; perspective: none; }

.rur-bk .rur-bk-page {
	position: absolute;
	top: 0;
	width: var(--pw);
	height: var(--ph);
	background: #fff;
	overflow: hidden;
	cursor: pointer;
	box-shadow: 0 10px 30px rgba(20, 30, 20, .16), 0 2px 6px rgba(20, 30, 20, .08);
	transition: opacity .18s ease, transform .18s ease;
}
.rur-bk .rur-bk-page--left { left: 0; }
.rur-bk .rur-bk-page--right { left: var(--pw); }
.rur-bk .rur-bk-page.is-empty { background: transparent; box-shadow: none; cursor: default; }
.rur-bk .rur-bk-page canvas, .rur-bk .rur-bk-cover { display: block; width: 100%; height: 100%; object-fit: cover; }

/* Spine shading */
.rur-bk .rur-bk-page::after { content: ""; position: absolute; top: 0; bottom: 0; width: 40px; pointer-events: none; }
.rur-bk .rur-bk-page--left::after { right: 0; background: linear-gradient(to left, rgba(0, 0, 0, .14), rgba(0, 0, 0, 0)); }
.rur-bk .rur-bk-page--right::after { left: 0; background: linear-gradient(to right, rgba(0, 0, 0, .12), rgba(0, 0, 0, 0)); }
.rur-bk .rur-bk-page.is-empty::after, .rur-bk .rur-bk-book.is-single .rur-bk-page::after { display: none; }

.rur-bk .rur-bk-book.is-single .rur-bk-page--left { display: none; }
.rur-bk .rur-bk-book.is-single .rur-bk-page--right { left: 0; }
.rur-bk .rur-bk-page.is-out-left { opacity: 0; transform: translateX(-24px); }
.rur-bk .rur-bk-page.is-out-right { opacity: 0; transform: translateX(24px); }
.rur-bk .rur-bk-page.is-in-right { opacity: 0; transform: translateX(24px); transition: none; }
.rur-bk .rur-bk-page.is-in-left { opacity: 0; transform: translateX(-24px); transition: none; }

/* Turning leaf */
.rur-bk .rur-bk-leaf {
	position: absolute;
	top: 0;
	width: var(--pw);
	height: var(--ph);
	transform-style: preserve-3d;
	transition: transform .7s cubic-bezier(.645, .045, .355, 1);
	z-index: 3;
	pointer-events: none;
}
.rur-bk .rur-bk-leaf.is-forward { left: var(--pw); transform-origin: left center; }
.rur-bk .rur-bk-leaf.is-back { left: 0; transform-origin: right center; }
.rur-bk .rur-bk-leaf.is-forward.is-turning { transform: rotateY(-180deg); }
.rur-bk .rur-bk-leaf.is-back.is-turning { transform: rotateY(180deg); }
.rur-bk .rur-bk-face {
	position: absolute;
	inset: 0;
	background: #fff;
	backface-visibility: hidden;
	-webkit-backface-visibility: hidden;
	overflow: hidden;
	box-shadow: 0 8px 26px rgba(20, 30, 20, .18);
}
.rur-bk .rur-bk-face--back { transform: rotateY(180deg); }
.rur-bk .rur-bk-face canvas { display: block; width: 100%; height: 100%; }
.rur-bk .rur-bk-face::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .35s ease; }
.rur-bk .rur-bk-leaf.is-forward .rur-bk-face--front::after { background: linear-gradient(to right, rgba(0, 0, 0, .25), rgba(0, 0, 0, 0) 60%); }
.rur-bk .rur-bk-leaf.is-back .rur-bk-face--front::after { background: linear-gradient(to left, rgba(0, 0, 0, .25), rgba(0, 0, 0, 0) 60%); }
.rur-bk .rur-bk-leaf.is-turning .rur-bk-face--front::after { opacity: 1; }

/* Arrows */
.rur-bk .rur-bk-arrow {
	position: absolute;
	top: 50%;
	z-index: 4;
	display: grid;
	place-items: center;
	width: 44px;
	height: 44px;
	margin-top: -22px;
	padding: 0;
	border: 0;
	border-radius: 50%;
	background: rgba(255, 255, 255, .92);
	color: #1c3a1e;
	box-shadow: 0 2px 10px rgba(0, 0, 0, .14);
	cursor: pointer;
	transition: background .2s, color .2s, opacity .2s;
}
.rur-bk .rur-bk-arrow--prev { left: 0; }
.rur-bk .rur-bk-arrow--next { right: 0; }
.rur-bk .rur-bk-arrow:hover, .rur-bk .rur-bk-arrow:focus-visible { background: var(--rur-green); color: #fff; }
.rur-bk .rur-bk-arrow:focus-visible { outline: 2px solid var(--rur-green); outline-offset: 2px; }
.rur-bk .rur-bk-arrow[disabled] { opacity: 0; pointer-events: none; }
.rur-bk .rur-bk-arrow svg, .rur-bk .rur-bk-tool svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Bottom bar */
.rur-bk .rur-bk-bar { display: flex; justify-content: center; align-items: center; gap: 4px; margin-top: 18px; }
.rur-bk .rur-bk-tool {
	display: grid;
	place-items: center;
	width: 40px;
	height: 40px;
	padding: 0;
	border: 0;
	border-radius: 50%;
	background: transparent;
	color: #2b3a2c;
	cursor: pointer;
	text-decoration: none;
	transition: background .2s, color .2s;
}
.rur-bk .rur-bk-tool:hover, .rur-bk .rur-bk-tool:focus-visible { background: rgba(6, 121, 99, .12); color: var(--rur-green); }
.rur-bk .rur-bk-tool:focus-visible { outline: 2px solid var(--rur-green); outline-offset: 1px; }
.rur-bk .rur-bk-count { min-width: 84px; text-align: center; font-size: 14px; font-weight: 600; letter-spacing: .03em; color: #2b3a2c; font-variant-numeric: tabular-nums; }
.rur-bk .rur-bk-sep { width: 1px; height: 20px; margin: 0 8px; background: rgba(0, 0, 0, .15); }

/* Loading */
.rur-bk .rur-bk-loading { position: absolute; inset: 0; display: none; place-items: center; z-index: 5; pointer-events: none; }
.rur-bk.is-loading .rur-bk-loading { display: grid; }
.rur-bk .rur-bk-loading span { width: 38px; height: 38px; border-radius: 50%; border: 3px solid rgba(6, 121, 99, .2); border-top-color: var(--rur-green); animation: rur-bk-spin .8s linear infinite; }
@keyframes rur-bk-spin { to { transform: rotate(360deg); } }
.rur-bk:not(.is-ready) .rur-bk-bar { visibility: hidden; }
.rur-bk.is-failed .rur-bk-arrow, .rur-bk.is-failed .rur-bk-bar { display: none; }
.rur-bk .rur-bk-fallback { margin: 16px 0 0; text-align: center; font-size: 15px; }

/* Full screen */
.rur-bk.is-fs, .rur-bk.is-full { justify-content: center; padding: 20px 24px 12px; background: #e9e9e2; }
.rur-bk.is-full { position: fixed; inset: 0; z-index: 99999; }
html.rur-bk-lock, html.rur-bk-lock body { overflow: hidden; }

@media (max-width: 759px) {
	.rur-bk { padding: 18px 0 8px; }
	.rur-bk .rur-bk-arrow { width: 38px; height: 38px; margin-top: -19px; background: rgba(255, 255, 255, .85); }
	.rur-bk .rur-bk-arrow--prev { left: 6px; }
	.rur-bk .rur-bk-arrow--next { right: 6px; }
}
@media (prefers-reduced-motion: reduce) {
	.rur-bk .rur-bk-book, .rur-bk .rur-bk-leaf, .rur-bk .rur-bk-page { transition-duration: .01ms !important; }
}
.rur-bk .rur-bk-book.is-static { transition: none; }