/* ==========================================================================
   Kuća Knjige 2.0 — components.css
   Dugmad, oznake (badges), cijene, kartica knjige, grid, obavijesti,
   paginacija, količina, prazna stanja.
   ========================================================================== */

/* ---------- Dugmad ---------- */

.kk-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	min-height: 46px;
	padding: 10px 22px;
	border: 1px solid transparent;
	border-radius: var(--kk-radius-pill);
	background: var(--kk-navy);
	color: var(--kk-white);
	font-family: var(--kk-font-sans);
	font-size: var(--kk-fs-sm);
	font-weight: 600;
	line-height: 1.2;
	text-align: center;
	text-decoration: none;
	cursor: pointer;
	transition: background var(--kk-dur) var(--kk-ease), color var(--kk-dur) var(--kk-ease), border-color var(--kk-dur) var(--kk-ease), box-shadow var(--kk-dur) var(--kk-ease), transform var(--kk-dur) var(--kk-ease);
}

.kk-btn:hover {
	background: var(--kk-navy-deep);
	color: var(--kk-white);
	box-shadow: var(--kk-shadow);
}

.kk-btn:active {
	transform: translateY(1px);
}

.kk-btn--accent {
	background: var(--kk-green);
}

.kk-btn--accent:hover {
	background: var(--kk-green-deep);
}

.kk-btn--gold {
	background: var(--kk-gold);
	color: var(--kk-navy-deep);
}

.kk-btn--gold:hover {
	background: var(--kk-gold-muted);
	color: var(--kk-navy-deep);
}

.kk-btn--ghost {
	border-color: var(--kk-border-strong);
	background: transparent;
	color: var(--kk-navy);
}

.kk-btn--ghost:hover {
	border-color: var(--kk-navy);
	background: var(--kk-white);
	color: var(--kk-navy);
	box-shadow: none;
}

.kk-btn--light {
	border-color: rgba(255, 255, 255, 0.45);
	background: transparent;
	color: var(--kk-white);
}

.kk-btn--light:hover {
	border-color: var(--kk-white);
	background: var(--kk-white);
	color: var(--kk-navy);
}

.kk-btn--link {
	min-height: 0;
	padding: 0;
	border: 0;
	background: none;
	color: var(--kk-green);
	text-decoration: underline;
}

.kk-btn--link:hover {
	background: none;
	color: var(--kk-navy);
	box-shadow: none;
}

.kk-btn--sm {
	min-height: 38px;
	padding: 7px 16px;
	font-size: var(--kk-fs-xs);
}

.kk-btn--lg {
	min-height: 54px;
	padding: 14px 30px;
	font-size: var(--kk-fs-base);
}

.kk-btn--block {
	display: flex;
	width: 100%;
}

.kk-btn[disabled],
.kk-btn.is-disabled,
.kk-btn[aria-disabled="true"] {
	border-color: var(--kk-border);
	background: var(--kk-sand);
	color: var(--kk-muted);
	box-shadow: none;
	cursor: not-allowed;
	transform: none;
}

.kk-btn.is-loading {
	position: relative;
	color: transparent;
	pointer-events: none;
}

.kk-btn.is-loading::after {
	content: "";
	position: absolute;
	width: 18px;
	height: 18px;
	border: 2px solid rgba(255, 255, 255, 0.45);
	border-top-color: var(--kk-white);
	border-radius: 50%;
	animation: kk-spin 0.7s linear infinite;
}

.kk-btn--ghost.is-loading::after {
	border-color: rgba(20, 35, 61, 0.2);
	border-top-color: var(--kk-navy);
}

.kk-btn.is-added {
	background: var(--kk-green);
}

@keyframes kk-spin {
	to { transform: rotate(360deg); }
}

/* ---------- Oznake (badges) ---------- */

.kk-badges {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}

.kk-badge {
	display: inline-flex;
	align-items: center;
	gap: 5px;
	min-height: 24px;
	padding: 3px 10px;
	border-radius: var(--kk-radius-pill);
	background: var(--kk-badge-bg, var(--kk-navy));
	color: var(--kk-badge-fg, var(--kk-white));
	font-size: 0.72rem;
	font-weight: 600;
	letter-spacing: 0.04em;
	line-height: 1.2;
	text-transform: uppercase;
	white-space: nowrap;
}

.kk-badge--new { --kk-badge-bg: var(--kk-navy); }
.kk-badge--sale { --kk-badge-bg: #8f2f2a; }
.kk-badge--preorder { --kk-badge-bg: var(--kk-green); }
.kk-badge--coming-soon { --kk-badge-bg: var(--kk-sand); --kk-badge-fg: var(--kk-navy); }
.kk-badge--catalog-only { --kk-badge-bg: var(--kk-white); --kk-badge-fg: var(--kk-muted); box-shadow: inset 0 0 0 1px var(--kk-border-strong); }
.kk-badge--featured { --kk-badge-bg: var(--kk-gold); --kk-badge-fg: var(--kk-navy-deep); }
.kk-badge--out { --kk-badge-bg: #e9e5dc; --kk-badge-fg: var(--kk-muted); }

/* ---------- Cijena ---------- */

.kk-price {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 4px 10px;
	margin: 0;
}

.kk-price .ss-cijena-nova {
	color: var(--kk-navy);
	font-size: 1.125rem;
	font-weight: 700;
	white-space: nowrap;
}

.kk-price.is-sale .ss-cijena-nova {
	color: #8f2f2a;
}

.kk-price .ss-cijena-stara {
	color: var(--kk-muted);
	font-size: var(--kk-fs-sm);
	white-space: nowrap;
}

.kk-price__saving {
	color: #8f2f2a;
	font-size: var(--kk-fs-xs);
	font-weight: 600;
}

/* ---------- Dostupnost ---------- */

.kk-stock {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	margin: 0;
	font-size: var(--kk-fs-xs);
	font-weight: 500;
}

.kk-stock::before {
	content: "";
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: currentColor;
}

.kk-stock--instock { color: var(--kk-success); }
.kk-stock--lowstock { color: var(--kk-warning); }
.kk-stock--outofstock { color: var(--kk-muted); }
.kk-stock--preorder { color: var(--kk-green); }
.kk-stock--coming_soon { color: var(--kk-gold-ink); }
.kk-stock--catalog_only { color: var(--kk-muted); }

/* ---------- Grid knjiga ---------- */

.kk-grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: clamp(14px, 2vw, 28px) clamp(12px, 1.6vw, 24px);
	margin: 0;
	padding: 0;
	list-style: none;
}

@media (min-width: 720px) {
	.kk-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
	.kk-grid { grid-template-columns: repeat(var(--kk-cols, 4), minmax(0, 1fr)); }
}

@media (max-width: 359px) {
	.kk-grid { grid-template-columns: minmax(0, 1fr); }
}

/* Horizontalna traka (scroll-snap) za sekcije na početnoj */
.kk-rail {
	display: grid;
	grid-auto-flow: column;
	grid-auto-columns: minmax(168px, 44%);
	gap: 16px;
	margin: 0 calc(-1 * var(--kk-gutter));
	padding: 4px var(--kk-gutter) 16px;
	overflow-x: auto;
	overscroll-behavior-x: contain;
	scroll-snap-type: x mandatory;
	scroll-padding: 0 var(--kk-gutter);
	list-style: none;
	scrollbar-width: thin;
}

.kk-rail > * {
	scroll-snap-align: start;
}

@media (min-width: 720px) {
	.kk-rail { grid-auto-columns: minmax(200px, 30%); }
}

@media (min-width: 1024px) {
	.kk-rail {
		grid-auto-flow: row;
		grid-template-columns: repeat(var(--kk-cols, 4), minmax(0, 1fr));
		grid-auto-columns: auto;
		gap: clamp(14px, 2vw, 28px) clamp(12px, 1.6vw, 24px);
		margin: 0;
		padding: 0;
		overflow: visible;
	}
}

/* ---------- Kartica knjige ---------- */

.kk-card {
	position: relative;
	display: flex;
	flex-direction: column;
	height: 100%;
	min-width: 0;
}

.kk-card__media {
	position: relative;
	display: block;
	aspect-ratio: 2 / 3;
	overflow: hidden;
	border-radius: var(--kk-radius-sm);
	background: linear-gradient(160deg, var(--kk-sand-soft), var(--kk-sand));
	box-shadow: 0 1px 0 rgba(20, 35, 61, 0.04), 0 14px 26px -18px rgba(20, 35, 61, 0.55);
	transition: transform var(--kk-dur-slow) var(--kk-ease), box-shadow var(--kk-dur-slow) var(--kk-ease);
}

.kk-card__media > a {
	display: block;
	width: 100%;
	height: 100%;
}

.kk-card__media img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.kk-card__media .kk-card__placeholder {
	display: grid;
	place-items: center;
	width: 100%;
	height: 100%;
	padding: 18px;
	color: var(--kk-navy);
	font-family: var(--kk-font-serif);
	font-size: 1rem;
	text-align: center;
	background-image: var(--kk-pattern);
	background-size: 90px;
}

.kk-card:hover .kk-card__media,
.kk-card:focus-within .kk-card__media {
	box-shadow: 0 1px 0 rgba(20, 35, 61, 0.04), 0 22px 36px -20px rgba(20, 35, 61, 0.6);
	transform: translateY(-3px);
}

.kk-card__badges {
	position: absolute;
	top: 10px;
	left: 10px;
	right: 10px;
	z-index: 2;
	pointer-events: none;
}

.kk-card__body {
	display: flex;
	flex: 1;
	flex-direction: column;
	gap: 6px;
	padding-top: 14px;
}

.kk-card__meta {
	margin: 0;
	color: var(--kk-muted);
	font-size: var(--kk-fs-xs);
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.kk-card__title {
	margin: 0;
	font-family: var(--kk-font-serif);
	font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
	font-weight: 600;
	line-height: 1.3;
	display: -webkit-box;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 3;
	overflow: hidden;
}

.kk-card__title a {
	color: var(--kk-navy);
	text-decoration: none;
}

.kk-card__title a::after {
	/* cijela kartica klikabilna, bez ugniježđenih linkova */
	content: "";
	position: absolute;
	inset: 0;
	z-index: 1;
}

.kk-card__title a:hover {
	color: var(--kk-green);
}

.kk-card__foot {
	display: flex;
	flex-direction: column;
	gap: 10px;
	margin-top: auto;
	padding-top: 6px;
}

.kk-card__actions {
	position: relative;
	z-index: 2;
}

.kk-card__actions form {
	margin: 0;
}

.kk-card__note {
	margin: 0;
	color: var(--kk-muted);
	font-size: var(--kk-fs-xs);
}

/* ---------- Obavijesti ---------- */

.kk-notice,
.ss-message {
	display: flex;
	gap: 12px;
	align-items: flex-start;
	margin: 0 0 var(--kk-space-5);
	padding: 14px 16px;
	border: 1px solid var(--kk-border);
	border-left-width: 4px;
	border-radius: var(--kk-radius-sm);
	background: var(--kk-info-bg);
	color: var(--kk-navy);
	font-size: var(--kk-fs-sm);
}

.kk-notice > :last-child,
.ss-message > :last-child {
	margin-bottom: 0;
}

.kk-notice--success,
.ss-message--success {
	border-color: #b9d6c1;
	border-left-color: var(--kk-success);
	background: var(--kk-success-bg);
	color: #1f4a2d;
}

.kk-notice--error,
.ss-message--error {
	border-color: #e6bcb8;
	border-left-color: var(--kk-danger);
	background: var(--kk-danger-bg);
	color: #6e1f1f;
}

.kk-notice--warning,
.ss-message--warning {
	border-color: #ead3a4;
	border-left-color: var(--kk-warning);
	background: var(--kk-warning-bg);
	color: #5e3d0c;
}

.kk-notice--info,
.ss-message--info {
	border-left-color: var(--kk-navy);
}

.kk-notice ul,
.ss-message ul {
	margin: 4px 0 0;
	padding-left: 1.1em;
}

/* Toast (plutajuća obavijest nakon AJAX akcije) */
.kk-toast-region {
	position: fixed;
	right: 16px;
	bottom: 16px;
	left: 16px;
	z-index: 300;
	display: grid;
	justify-items: end;
	gap: 8px;
	pointer-events: none;
}

.kk-toast {
	display: flex;
	align-items: center;
	gap: 12px;
	max-width: 420px;
	padding: 12px 14px 12px 16px;
	border-radius: var(--kk-radius);
	background: var(--kk-navy);
	color: var(--kk-on-dark);
	font-size: var(--kk-fs-sm);
	box-shadow: var(--kk-shadow-lg);
	pointer-events: auto;
	animation: kk-toast-in var(--kk-dur-slow) var(--kk-ease);
}

.kk-toast--error {
	background: #6e1f1f;
}

.kk-toast a {
	color: var(--kk-gold-muted);
	font-weight: 600;
	white-space: nowrap;
}

@keyframes kk-toast-in {
	from { opacity: 0; transform: translateY(10px); }
	to { opacity: 1; transform: none; }
}

/* ---------- Paginacija ---------- */

.kk-pagination {
	margin-top: var(--kk-space-7);
}

/* paginate_links( type=list ) daje <ul class="page-numbers">, pa se stil
   "dugmeta" smije primijeniti samo na <a>/<span>, nikad na sam <ul>. */
.kk-pagination .nav-links,
.kk-pagination ul,
.kk-pagination ul.page-numbers {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: center;
	gap: 8px;
	width: auto;
	height: auto;
	min-width: 0;
	margin: 0;
	padding: 0;
	border: 0;
	background: none;
	list-style: none;
}

.kk-pagination li {
	display: flex;
	margin: 0;
	padding: 0;
}

.kk-pagination a.page-numbers,
.kk-pagination span.page-numbers {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 44px;
	height: 44px;
	padding: 0 12px;
	border: 1px solid var(--kk-border);
	border-radius: var(--kk-radius-pill);
	background: var(--kk-white);
	color: var(--kk-navy);
	font-size: var(--kk-fs-sm);
	font-weight: 500;
	text-decoration: none;
}

.kk-pagination a.page-numbers:hover {
	border-color: var(--kk-navy);
}

.kk-pagination .page-numbers.current {
	border-color: var(--kk-navy);
	background: var(--kk-navy);
	color: var(--kk-white);
}

.kk-pagination .page-numbers.dots {
	border-color: transparent;
	background: transparent;
}

/* ---------- Količina ---------- */

.kk-qty {
	display: inline-flex;
	align-items: stretch;
	height: 46px;
	overflow: hidden;
	border: 1px solid var(--kk-border-strong);
	border-radius: var(--kk-radius-pill);
	background: var(--kk-white);
}

.kk-qty button {
	display: inline-grid;
	place-items: center;
	width: 42px;
	padding: 0;
	border: 0;
	background: transparent;
	color: var(--kk-navy);
	font-size: 1.1rem;
}

.kk-qty button:hover {
	background: var(--kk-sand-soft);
}

.kk-qty button:disabled {
	color: var(--kk-border-strong);
	cursor: not-allowed;
}

.kk-qty input[type="number"] {
	width: 52px;
	min-height: 0;
	padding: 0;
	border: 0;
	border-radius: 0;
	background: transparent;
	font-weight: 600;
	text-align: center;
	-moz-appearance: textfield;
	appearance: textfield;
}

.kk-qty input[type="number"]::-webkit-inner-spin-button,
.kk-qty input[type="number"]::-webkit-outer-spin-button {
	-webkit-appearance: none;
	margin: 0;
}

.kk-qty input[type="number"]:focus {
	box-shadow: none;
}

.kk-qty:focus-within {
	border-color: var(--kk-navy);
	box-shadow: 0 0 0 3px rgba(47, 111, 214, 0.25);
}

.kk-qty--sm {
	height: 38px;
}

.kk-qty--sm button {
	width: 34px;
}

.kk-qty--sm input[type="number"] {
	width: 40px;
}

/* ---------- Prazno stanje ---------- */

.kk-empty {
	display: grid;
	justify-items: center;
	gap: 12px;
	padding: clamp(36px, 6vw, 72px) 20px;
	border: 1px dashed var(--kk-border-strong);
	border-radius: var(--kk-radius-lg);
	background: var(--kk-white);
	text-align: center;
}

.kk-empty svg {
	color: var(--kk-gold);
}

.kk-empty h2,
.kk-empty h3 {
	margin: 0;
	font-size: var(--kk-fs-h3);
}

.kk-empty p {
	max-width: 460px;
	margin: 0;
	color: var(--kk-muted);
}

/* ---------- Tabovi (opis / podaci) ---------- */

.kk-tabs__list {
	display: flex;
	gap: 4px;
	margin: 0 0 24px;
	padding: 0;
	border-bottom: 1px solid var(--kk-border);
	overflow-x: auto;
	overflow-y: hidden;
	list-style: none;
	scrollbar-width: none; /* na uskom ekranu se i dalje može prevući prstom */
}

.kk-tabs__list::-webkit-scrollbar {
	display: none;
	width: 0;
	height: 0;
}

.kk-tabs__tab {
	position: relative;
	min-height: 48px;
	padding: 10px 18px;
	border: 0;
	background: transparent;
	color: var(--kk-muted);
	font-weight: 600;
	white-space: nowrap;
}

.kk-tabs__tab[aria-selected="true"] {
	color: var(--kk-navy);
}

.kk-tabs__tab[aria-selected="true"]::after {
	content: "";
	position: absolute;
	right: 12px;
	bottom: 0;
	left: 12px;
	height: 2px;
	background: var(--kk-gold);
}
.kk-tabs__panel[hidden] {
	display: none;
}

/* ---------- Definicijska lista (podaci o knjizi) ---------- */

.kk-specs {
	display: grid;
	grid-template-columns: minmax(120px, max-content) 1fr;
	gap: 0;
	margin: 0;
	border-top: 1px solid var(--kk-border);
	font-size: var(--kk-fs-sm);
}

.kk-specs dt,
.kk-specs dd {
	margin: 0;
	padding: 11px 0;
	border-bottom: 1px solid var(--kk-border);
}

.kk-specs dt {
	padding-right: 20px;
	color: var(--kk-muted);
}

.kk-specs dd {
	color: var(--kk-navy);
	font-weight: 500;
}

/* ---------- Ukras: arkada ---------- */

.kk-arch {
	position: relative;
	overflow: hidden;
	border-radius: 999px 999px var(--kk-radius) var(--kk-radius);
}