/* Oliver Kane Publishing — component-level CSS.
 * Enqueued directly (not inlined) so it works identically in draft and live
 * mode. References the CSS custom properties emitted by the @theme block
 * in template-parts/document-head.php (draft) / theme.css (compiled, live).
 */

.eyebrow {
	font-family: var(--font-mono);
	font-size: 0.75rem;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--color-primary-700);
}

.shelf-ledge {
	position: relative;
	height: 1px;
	background: var(--color-secondary-200);
}
.shelf-ledge::after {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	top: 1px;
	height: 10px;
	background: linear-gradient(to bottom, rgba(22, 19, 15, 0.06), transparent);
}

.spine {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: space-between;
	width: 3.25rem;
	min-height: 15rem;
	padding: 1.25rem 0.5rem;
	border-radius: var(--radius-card) var(--radius-card) 0 0;
	box-shadow: inset -6px 0 10px -8px rgba(0, 0, 0, 0.35), 2px 0 0 rgba(0, 0, 0, 0.06);
	transition: transform 0.25s ease, box-shadow 0.25s ease;
	text-decoration: none;
	cursor: pointer;
}
.spine:hover,
.spine:focus-visible {
	transform: translateY(-0.85rem);
	box-shadow: inset -6px 0 10px -8px rgba(0, 0, 0, 0.35), 4px 8px 14px rgba(22, 19, 15, 0.28);
}
.spine__label {
	writing-mode: vertical-rl;
	transform: rotate(180deg);
	font-family: var(--font-serif);
	font-size: 1rem;
	letter-spacing: 0.02em;
	white-space: nowrap;
}

.book-card {
	border-top: 3px solid var(--color-spine-default);
	background: var(--color-surface);
}

.btn-primary {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	font-family: var(--font-mono);
	font-size: 0.8125rem;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	background: var(--color-neutral);
	color: var(--color-background);
	padding: 0.85rem 1.5rem;
	border-radius: var(--radius-card);
	text-decoration: none;
	transition: background-color 0.2s ease, color 0.2s ease;
}
.btn-primary:hover,
.btn-primary:focus-visible {
	background: var(--color-primary-600);
	color: var(--color-neutral);
}

.btn-outline {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	font-family: var(--font-mono);
	font-size: 0.8125rem;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	background: transparent;
	color: var(--color-neutral);
	border: 1px solid var(--color-secondary-300);
	padding: 0.8rem 1.4rem;
	border-radius: var(--radius-card);
	text-decoration: none;
	transition: border-color 0.2s ease, color 0.2s ease;
}
.btn-outline:hover,
.btn-outline:focus-visible {
	border-color: var(--color-neutral);
	color: var(--color-primary-700);
}