/**
 * EN4U storefront.
 *
 * Light counterpart to the reader: paper ground, indigo type, one marigold
 * accent reserved for the thing you press.
 */

.en4u-store,
.en4u-dash {
	--indigo: #1e2a55;
	--indigo-soft: #43507e;
	--paper: #faf8f3;
	--card: #ffffff;
	--rule: #e2ded1;
	--muted: #6d7490;
	--marigold: #e4a11b;
	--marigold-ink: #2b1e02;
	--good: #1c6b4d;
	--warn: #8a4b12;
	--radius: 12px;
	--ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", sans-serif;
	--display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
	--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

	max-width: 1120px;
	margin: 0 auto;
	padding: 24px 16px 56px;
	font-family: var(--ui);
	color: var(--indigo);
}

/* ---------- Buttons ---------- */

.en4u-btn {
	display: inline-block;
	background: var(--marigold);
	color: var(--marigold-ink);
	border: 1px solid var(--marigold);
	border-radius: 9px;
	padding: 10px 20px;
	font: 600 14px/1.2 var(--ui);
	cursor: pointer;
	text-decoration: none;
	transition: background 0.15s ease, transform 0.1s ease;
}

.en4u-btn:hover {
	background: #f2ad25;
	color: var(--marigold-ink);
}

.en4u-btn:active {
	transform: translateY(1px);
}

.en4u-btn[disabled] {
	opacity: 0.55;
	cursor: progress;
}

.en4u-btn--ghost {
	background: transparent;
	border-color: var(--rule);
	color: var(--indigo);
}

.en4u-btn--ghost:hover {
	background: #f1eee5;
	color: var(--indigo);
}

.en4u-btn--wide {
	display: block;
	width: 100%;
	text-align: center;
	padding: 14px 20px;
	font-size: 15px;
}

.en4u-store :focus-visible,
.en4u-dash :focus-visible {
	outline: 2px solid var(--indigo);
	outline-offset: 2px;
}

/* ---------- Search ---------- */

.en4u-store__search {
	display: flex;
	gap: 8px;
	margin-bottom: 28px;
}

.en4u-store__search input {
	flex: 1;
	padding: 11px 14px;
	border: 1px solid var(--rule);
	border-radius: 9px;
	background: var(--card);
	font: 15px var(--ui);
	color: var(--indigo);
}

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

.en4u-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
	gap: 22px;
}

.en4u-card-book {
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.en4u-card-book__cover {
	display: block;
	aspect-ratio: 2 / 3;
	border-radius: 8px;
	overflow: hidden;
	background: linear-gradient(150deg, #2c3a6d, var(--indigo));
	box-shadow: 0 10px 24px rgba(30, 42, 85, 0.16);
	position: relative;
}

.en4u-card-book__cover img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.en4u-card-book__blank {
	position: absolute;
	inset: 0;
	display: grid;
	place-items: center;
	font-family: var(--display);
	font-size: 54px;
	color: rgba(255, 255, 255, 0.85);
}

.en4u-card-book__meta h3 {
	margin: 0 0 3px;
	font-family: var(--display);
	font-size: 17px;
	line-height: 1.3;
	font-weight: 600;
}

.en4u-card-book__meta h3 a {
	color: var(--indigo);
	text-decoration: none;
}

.en4u-card-book__author {
	margin: 0 0 8px;
	font-size: 13px;
	color: var(--muted);
}

.en4u-card-book__facts {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	margin: 0 0 10px;
	font-size: 12px;
	color: var(--muted);
	font-family: var(--mono);
}

.en4u-card-book__price {
	font-size: 14px;
	font-weight: 700;
	color: var(--indigo);
}

/* ---------- Shelf ---------- */

.en4u-shelf {
	display: grid;
	gap: 18px;
}

.en4u-shelf__item {
	display: grid;
	grid-template-columns: 96px 1fr;
	gap: 18px;
	background: var(--card);
	border: 1px solid var(--rule);
	border-radius: var(--radius);
	padding: 16px;
}

.en4u-shelf__cover {
	position: relative;
	display: block;
	aspect-ratio: 2 / 3;
	border-radius: 6px;
	overflow: hidden;
	background: var(--indigo);
}

.en4u-shelf__cover img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.en4u-shelf__meta h3 {
	margin: 0 0 2px;
	font-family: var(--display);
	font-size: 19px;
}

.en4u-shelf__author {
	margin: 0 0 12px;
	font-size: 13px;
	color: var(--muted);
}

.en4u-progress {
	height: 5px;
	border-radius: 3px;
	background: #eae6db;
	overflow: hidden;
	max-width: 340px;
}

.en4u-progress__fill {
	display: block;
	height: 100%;
	background: var(--marigold);
}

.en4u-shelf__status {
	margin: 7px 0 14px;
	font-size: 12px;
	font-family: var(--mono);
	color: var(--muted);
}

/* ---------- Checkout ---------- */

.en4u-checkout__card {
	max-width: 560px;
	margin: 0 auto;
	background: var(--card);
	border: 1px solid var(--rule);
	border-radius: var(--radius);
	padding: 30px;
}

.en4u-eyebrow {
	margin: 0 0 16px;
	font: 600 11px/1 var(--ui);
	letter-spacing: 0.13em;
	text-transform: uppercase;
	color: var(--muted);
}

.en4u-checkout__row {
	display: grid;
	grid-template-columns: 88px 1fr;
	gap: 18px;
	align-items: start;
}

.en4u-checkout__row:only-child,
.en4u-checkout__row > div:only-child {
	grid-column: 1 / -1;
}

.en4u-checkout__cover img {
	width: 100%;
	border-radius: 6px;
	display: block;
}

.en4u-checkout__card h1 {
	margin: 0 0 4px;
	font-family: var(--display);
	font-size: 22px;
	line-height: 1.25;
}

.en4u-checkout__author {
	margin: 0 0 8px;
	color: var(--muted);
	font-size: 14px;
}

.en4u-checkout__facts {
	margin: 0;
	font-size: 13px;
	color: var(--muted);
}

.en4u-checkout__totals {
	margin: 26px 0;
	border-top: 1px solid var(--rule);
	padding-top: 16px;
}

.en4u-checkout__totals div {
	display: flex;
	justify-content: space-between;
	padding: 6px 0;
	font-size: 14px;
}

.en4u-checkout__totals dt,
.en4u-checkout__totals dd {
	margin: 0;
}

.en4u-checkout__grand {
	border-top: 1px solid var(--rule);
	margin-top: 8px;
	padding-top: 14px !important;
	font-size: 17px !important;
	font-weight: 700;
}

.en4u-checkout__fine {
	margin: 16px 0 0;
	font-size: 12px;
	line-height: 1.6;
	color: var(--muted);
}

/* ---------- Single book ---------- */

.en4u-single__grid {
	display: grid;
	grid-template-columns: 280px 1fr;
	gap: 42px;
	align-items: start;
}

.en4u-single__cover {
	position: relative;
	aspect-ratio: 2 / 3;
	border-radius: 10px;
	overflow: hidden;
	background: var(--indigo);
	box-shadow: 0 18px 40px rgba(30, 42, 85, 0.2);
}

.en4u-single__cover img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.en4u-single__body h1 {
	margin: 0 0 6px;
	font-family: var(--display);
	font-size: clamp(26px, 4vw, 36px);
	line-height: 1.15;
}

.en4u-single__author {
	margin: 0 0 22px;
	font-size: 16px;
	color: var(--muted);
}

.en4u-single__facts {
	display: flex;
	flex-wrap: wrap;
	gap: 26px;
	margin: 0 0 22px;
	padding: 16px 0;
	border-top: 1px solid var(--rule);
	border-bottom: 1px solid var(--rule);
}

.en4u-single__facts dt {
	font: 600 10px/1 var(--ui);
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--muted);
	margin-bottom: 5px;
}

.en4u-single__facts dd {
	margin: 0;
	font-family: var(--mono);
	font-size: 14px;
}

.en4u-single__price {
	font-family: var(--display);
	font-size: 30px;
	margin: 0 0 18px;
}

.en4u-single__cta {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	margin: 0 0 28px;
}

.en4u-single__desc {
	font-size: 16px;
	line-height: 1.7;
}

.en4u-single__note {
	margin-top: 26px;
	padding: 12px 16px;
	background: #f2efe6;
	border-left: 3px solid var(--marigold);
	border-radius: 0 8px 8px 0;
	font-size: 13px;
	color: var(--muted);
}

/* ---------- Shared bits ---------- */

.en4u-empty {
	text-align: center;
	padding: 60px 20px;
	background: var(--card);
	border: 1px dashed var(--rule);
	border-radius: var(--radius);
}

.en4u-empty h2 {
	margin: 0 0 8px;
	font-family: var(--display);
	font-size: 24px;
}

.en4u-empty p {
	margin: 0 auto 20px;
	max-width: 44ch;
	color: var(--muted);
	line-height: 1.6;
}

.en4u-notice {
	padding: 13px 16px;
	border-radius: 9px;
	background: #f2efe6;
	border-left: 3px solid var(--indigo-soft);
	margin: 0 0 20px;
	font-size: 14px;
	line-height: 1.6;
}

.en4u-notice--warn {
	border-left-color: var(--warn);
	background: #fbf1e4;
	color: var(--warn);
}

.en4u-notice--good {
	border-left-color: var(--good);
	background: #eaf4ef;
	color: var(--good);
}

.en4u-pager {
	margin-top: 34px;
	display: flex;
	justify-content: center;
	gap: 6px;
}

.en4u-pager .page-numbers {
	padding: 7px 12px;
	border: 1px solid var(--rule);
	border-radius: 7px;
	text-decoration: none;
	color: var(--indigo);
	font-size: 14px;
}

.en4u-pager .page-numbers.current {
	background: var(--indigo);
	border-color: var(--indigo);
	color: #fff;
}

.en4u-muted {
	color: var(--muted);
	font-size: 13px;
}

@media (max-width: 760px) {
	.en4u-single__grid {
		grid-template-columns: 1fr;
		gap: 24px;
	}

	.en4u-single__cover {
		max-width: 220px;
	}

	.en4u-shelf__item {
		grid-template-columns: 74px 1fr;
	}
}

@media (prefers-reduced-motion: reduce) {
	.en4u-store *,
	.en4u-dash * {
		transition: none !important;
	}
}

/* Access periods */
.en4u-shelf__item.is-expired .en4u-shelf__cover img,
.en4u-shelf__item.is-expired .en4u-card-book__blank { filter: grayscale(1); opacity: .55; }
.en4u-shelf__cover { position: relative; }
.en4u-shelf__flag { position: absolute; left: 8px; top: 8px; background: #b91c1c; color: #fff; font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; padding: 3px 8px; border-radius: 999px; }
.en4u-shelf__expiry { margin: .25rem 0 .6rem; font-size: 13px; color: #047857; font-weight: 600; }
.en4u-shelf__expiry.is-soon { color: #b45309; }
.en4u-shelf__expiry.is-ended { color: #b91c1c; }
.en4u-shelf__expiry.is-lifetime { color: #64748b; font-weight: 500; }
.en4u-shelf__actions { display: flex; flex-wrap: wrap; gap: .5rem; }