/* Gullborgen Katalog – viewer
   Bruker sidens designvariabler hvis de finnes (--gold, --ink, --sage-*), ellers fallback. */

.gbk {
	--gbk-gold: var(--gold, #b08d57);
	--gbk-gold-deep: var(--gold-deep, #8a6a3b);
	--gbk-ink: var(--ink, #23211e);
	--gbk-paper: var(--paper, #f7f3ec);
	--gbk-line: rgba(35, 33, 30, .12);
	--gbk-bar-h: 56px;
	--gbk-maxh: calc(100svh - var(--gbk-bar-h) - 120px);
	position: relative;
	width: 100%;
	color: var(--gbk-ink);
	-webkit-tap-highlight-color: transparent;
}
.gbk *, .gbk *::before, .gbk *::after { box-sizing: border-box; }

/* ---------- Stage ---------- */
.gbk-stage {
	position: relative;
	width: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
	user-select: none;
	-webkit-user-select: none;
}

/* Page (shared by both modes) */
.gbk-page { background: #fff; overflow: hidden; }
.gbk-page-in { position: relative; width: 100%; height: 100%; }
.gbk-page-in > img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
	background: linear-gradient(100deg, #f1ede6 30%, #f8f5f0 50%, #f1ede6 70%) 0 0 / 300% 100%;
	-webkit-user-drag: none;
	pointer-events: none;
}

/* ---------- Swipe mode (default + mobile + no-JS) ---------- */
.gbk-book {
	--gbk-pw: min(100%, calc(var(--gbk-maxh) / var(--gbk-r)));
	display: flex;
	width: var(--gbk-pw);
	overflow-x: auto;
	overflow-y: hidden;
	scroll-snap-type: x mandatory;
	scroll-behavior: smooth;
	overscroll-behavior-x: contain;
	scrollbar-width: none;
	box-shadow: 0 10px 30px -12px rgba(0, 0, 0, .25);
}
.gbk-book::-webkit-scrollbar { display: none; }
.gbk-book > .gbk-page {
	flex: 0 0 100%;
	aspect-ratio: 1 / var(--gbk-r);
	scroll-snap-align: center;
	scroll-snap-stop: always;
}

/* ---------- Flip mode (page-flip: oppslag på desktop, enkeltside på mobil) ---------- */
.gbk-bookwrap { position: relative; margin: 0 auto; max-width: 100%; }
.gbk.is-flip .gbk-book {
	display: block;
	overflow: visible;
	scroll-snap-type: none;
	box-shadow: none;
	width: 100%;
	height: 100%;
}
.gbk.is-flip .stf__parent { margin: 0 auto; }
.gbk.is-flip .stf__block { filter: drop-shadow(0 16px 26px rgba(0,0,0,.20)) drop-shadow(0 2px 4px rgba(0,0,0,.10)); }

/* Rygg-skygge i midten – som en ekte brosjyre (samme oppskrift som Heyzine/turn.js, litt mykere overgang). */
.gbk.is-flip .gbk-page-in::after {
	content: "";
	position: absolute;
	inset: 0;
	z-index: 1;
	pointer-events: none;
}
.gbk.is-flip .gbk-page.--left .gbk-page-in::after {
	background: linear-gradient(to right,
		rgba(0,0,0,0) 86%,
		rgba(0,0,0,.035) 92%,
		rgba(0,0,0,.10) 96.5%,
		rgba(0,0,0,.22) 99.3%,
		rgba(0,0,0,.28) 100%);
}
.gbk.is-flip .gbk-page.--right .gbk-page-in::after {
	background: linear-gradient(to left,
		rgba(0,0,0,0) 88%,
		rgba(0,0,0,.03) 93%,
		rgba(0,0,0,.09) 97%,
		rgba(0,0,0,.18) 99.4%,
		rgba(0,0,0,.24) 100%);
}
/* Mobil (enkeltside): bare en antydning av rygg på venstre kant. */
.gbk.is-single .gbk-page.--right .gbk-page-in::after {
	background: linear-gradient(to left, rgba(0,0,0,0) 93%, rgba(0,0,0,.06) 97.5%, rgba(0,0,0,.16) 100%);
}

/* ---------- Product hotspots ---------- */
.gbk-hot {
	position: absolute;
	z-index: 2;
	display: block;
	border-radius: 6px;
	outline: 1px solid transparent;
	transition: outline-color .2s, background-color .2s;
	text-decoration: none !important;
	cursor: pointer;
}
.gbk-hot > * { pointer-events: none; } /* klikket må lande på <a> (page-flip videresender kun klikk på a/button) */
.gbk-hot:focus-visible { outline: 2px solid var(--gbk-gold); outline-offset: 2px; }

.gbk-cart {
	position: absolute;
	right: 3px;
	bottom: 3px;
	width: 22px;
	height: 22px;
	border-radius: 50%;
	display: grid;
	place-items: center;
	color: #fff;
	background: var(--gbk-gold);
	box-shadow: 0 1px 4px rgba(0,0,0,.25), 0 0 0 1.5px rgba(255,255,255,.9);
	transition: transform .2s, background-color .2s;
	animation: gbk-pop .5s ease-out both;
}
.gbk-cart svg { width: 11px; height: 11px; }

.gbk-tip {
	position: absolute;
	left: 50%;
	bottom: calc(100% + 8px);
	transform: translate(-50%, 4px);
	min-width: 140px;
	max-width: 240px;
	padding: 8px 12px;
	background: #fff;
	color: var(--gbk-ink);
	border-radius: 8px;
	box-shadow: 0 8px 24px rgba(0,0,0,.18);
	font-size: 13px;
	line-height: 1.35;
	text-align: center;
	opacity: 0;
	visibility: hidden;
	transition: opacity .18s, transform .18s, visibility .18s;
	white-space: normal;
}
.gbk-tip-name { display: block; font-weight: 500; }
.gbk-tip-price { display: block; margin-top: 2px; color: var(--gbk-gold-deep); }
.gbk-tip-price del { opacity: .55; margin-right: 4px; font-size: .92em; }
.gbk-tip-price ins { text-decoration: none; font-weight: 600; }
.gbk-tip-below .gbk-tip { bottom: auto; top: calc(100% + 8px); }
.gbk-tip-left .gbk-tip { left: 0; transform: translate(0, 4px); }
.gbk-tip-right .gbk-tip { left: auto; right: 0; transform: translate(0, 4px); }

@media (hover: hover) and (pointer: fine) {
	.gbk-hot:hover { outline-color: rgba(176, 141, 87, .7); background: rgba(255,255,255,.08); }
	.gbk-hot:hover .gbk-cart { transform: scale(1.12); background: var(--gbk-gold-deep); }
	.gbk-hot:hover .gbk-tip { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
	.gbk-hot.gbk-tip-left:hover .gbk-tip,
	.gbk-hot.gbk-tip-right:hover .gbk-tip { transform: translate(0, 0); }
}
@media (hover: none) {
	.gbk-tip { display: none; }
}
@media (max-width: 600px) {
	.gbk-cart { width: 19px; height: 19px; right: 2px; bottom: 2px; }
	.gbk-cart svg { width: 10px; height: 10px; }
}

@keyframes gbk-pop {
	0% { transform: scale(.4); opacity: 0; }
	70% { transform: scale(1.12); opacity: 1; }
	100% { transform: scale(1); }
}

/* Screen-reader text per page (page text from the PDF) */
.gbk-sr {
	position: absolute !important;
	width: 1px; height: 1px;
	overflow: hidden;
	clip: rect(0 0 0 0);
	clip-path: inset(50%);
	white-space: nowrap;
}

/* ---------- Toolbar ---------- */
.gbk-bar {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 4px;
	height: var(--gbk-bar-h);
	margin: 14px auto 0;
	padding: 0 8px;
	max-width: 520px;
	font-size: 14px;
}
.gbk button.gbk-btn, .gbk a.gbk-btn {
	appearance: none;
	box-sizing: border-box;
	min-width: 0;
	min-height: 0;
	line-height: 1;
	font-size: 14px;
	text-transform: none;
	letter-spacing: normal;
	box-shadow: none;
	display: inline-grid;
	place-items: center;
	width: 44px;
	height: 44px;
	padding: 0;
	margin: 0;
	border: 1px solid var(--gbk-line);
	border-radius: 50%;
	background: #fff;
	color: var(--gbk-ink);
	cursor: pointer;
	transition: background-color .15s, border-color .15s, color .15s, opacity .15s;
	text-decoration: none;
	flex: 0 0 auto;
}
.gbk .gbk-btn svg { width: 20px; height: 20px; display: block; }
.gbk button.gbk-btn:hover, .gbk a.gbk-btn:hover, .gbk button.gbk-btn:focus, .gbk a.gbk-btn:focus { border-color: var(--gbk-gold); color: var(--gbk-gold-deep); background: #fff; }
.gbk button.gbk-btn:focus, .gbk a.gbk-btn:focus { outline: none; box-shadow: none; }
.gbk button.gbk-btn:focus-visible, .gbk a.gbk-btn:focus-visible { outline: 2px solid var(--gbk-gold); outline-offset: 2px; }
.gbk button.gbk-btn[disabled] { opacity: .35; cursor: default; pointer-events: none; }
.gbk-sep { width: 1px; height: 24px; background: var(--gbk-line); margin: 0 6px; }

.gbk-pos { flex: 1 1 auto; min-width: 90px; max-width: 220px; display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 0 8px; }
.gbk-count { font-variant-numeric: tabular-nums; letter-spacing: .04em; font-size: 13px; }
.gbk input.gbk-range {
	border: 0;
	box-shadow: none;
	min-height: 0;
	border-radius: 0;
	outline: none;
	-webkit-appearance: none; appearance: none;
	width: 100%; height: 18px; margin: 0; padding: 0;
	background: transparent; cursor: pointer;
}
.gbk-range::-webkit-slider-runnable-track { height: 2px; background: var(--gbk-line); border-radius: 2px; }
.gbk-range::-moz-range-track { height: 2px; background: var(--gbk-line); border-radius: 2px; }
.gbk-range::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; margin-top: -6px; border-radius: 50%; background: var(--gbk-gold); border: 2px solid #fff; box-shadow: 0 1px 3px rgba(0,0,0,.3); }
.gbk-range::-moz-range-thumb { width: 12px; height: 12px; border-radius: 50%; background: var(--gbk-gold); border: 2px solid #fff; }

@media (max-width: 480px) {
	.gbk-bar { gap: 2px; padding: 0; }
	.gbk-sep { display: none; }
	.gbk-pos { min-width: 64px; padding: 0 4px; }
	.gbk button.gbk-btn, .gbk a.gbk-btn { width: 40px; height: 40px; }
	.gbk-sep { margin: 0 2px; }
}

.gbk .gbk-snd .gbk-snd-off { display: none; }
.gbk .gbk-snd.is-muted .gbk-snd-on { display: none; }
.gbk .gbk-snd.is-muted .gbk-snd-off { display: inline; }

/* ---------- Produktliste (synlig, indekserbar) ---------- */
.gbk-products { margin: clamp(32px, 5vw, 56px) auto 0; max-width: 1200px; }
.gbk-products h2 { text-align: center; margin: 0 0 20px; }
.gbk-products ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
	gap: 16px;
}
@media (max-width: 480px) { .gbk-products ul { grid-template-columns: repeat(2, 1fr); gap: 12px; } }
.gbk-products li { margin: 0; }
.gbk-products a { display: block; text-decoration: none; color: inherit; }
.gbk-products img { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; background: #f4f1ec; border-radius: 4px; }
.gbk-products .gbk-p-name { display: block; margin-top: 8px; font-size: 14px; line-height: 1.35; }
.gbk-products .gbk-p-price { display: block; margin-top: 2px; font-size: 14px; color: var(--gbk-gold-deep); }
.gbk-products .gbk-p-price del { opacity: .55; margin-right: 4px; }
.gbk-products .gbk-p-price ins { text-decoration: none; font-weight: 600; }

/* ---------- Fullscreen ---------- */
.gbk.is-full {
	position: fixed;
	inset: 0;
	z-index: 100000;
	background: var(--gbk-paper);
	display: flex;
	flex-direction: column;
	justify-content: center;
	padding: max(12px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
	--gbk-maxh: calc(100svh - var(--gbk-bar-h) - 48px);
}
.gbk.is-full .gbk-bar { margin-top: 10px; }
html.gbk-lock, html.gbk-lock body { overflow: hidden !important; }
.gbk:fullscreen { background: var(--gbk-paper); }

/* ---------- Zoom i rammen (knip / dra / dobbelttrykk) ---------- */
.gbk.is-flip .gbk-bookwrap { transform-origin: 0 0; touch-action: pan-y; }
.gbk.is-zoomed .gbk-stage { overflow: hidden; }
.gbk.is-zoomed .gbk-bookwrap { touch-action: none; cursor: grab; }
.gbk.is-zoomed .gbk-bookwrap:active { cursor: grabbing; }
.gbk-bookwrap.gbk-z-anim { transition: transform .25s ease; }
.gbk.is-zoomed .gbk-cart { animation: none; }
.gbk button.gbk-zoom[aria-pressed="true"] { border-color: var(--gbk-gold); color: var(--gbk-gold-deep); }

@media (prefers-reduced-motion: reduce) {
	.gbk-book { scroll-behavior: auto; }
	.gbk-cart { animation: none; }
	.gbk-bookwrap.gbk-z-anim { transition: none; }
}