/**
 * Chapter Navigation Styles
 *
 * Series banner and prev/next navigation for serialized book chapters.
 *
 * @package add
 */

/* ── Series Banner ─────────────────────────────────────────── */

.add-chapter-banner {
	background: var(--wp--preset--color--primary, #0f172a);
	border-bottom: 2px solid var(--wp--preset--color--accent, #b8934a);
	padding: 0.75rem 1.25rem;
	margin-bottom: 2rem;
	border-radius: 4px;
}

.add-chapter-banner__inner {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.5rem 1.5rem;
	max-width: 72rem;
	margin: 0 auto;
}

.add-chapter-banner__book {
	font-size: 0.8rem;
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--wp--preset--color--accent, #b8934a);
}

.add-chapter-banner__meta {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	font-size: 0.8rem;
	color: var(--wp--preset--color--border, #94a3b8);
}

.add-chapter-banner__chapter {
	font-weight: 600;
	color: #fff;
}

.add-chapter-banner__period {
	opacity: 0.7;
}

.add-chapter-banner__order {
	margin-left: auto;
	font-size: 0.75rem;
	color: var(--wp--preset--color--border, #94a3b8);
}

.add-chapter-banner__separator {
	margin: 0 0.35rem;
	opacity: 0.5;
}

.add-chapter-banner__link {
	color: var(--wp--preset--color--accent, #b8934a);
	text-decoration: underline;
	text-underline-offset: 2px;
}

.add-chapter-banner__link:hover {
	color: #fff;
}

/* ── Prev / Next Navigation ───────────────────────────────── */

.add-chapter-nav {
	margin-top: 3rem;
	padding-top: 2rem;
	border-top: 1px solid var(--wp--preset--color--border, #94a3b8);
}

.add-chapter-nav__inner {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1.5rem;
}

.add-chapter-nav__link {
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
	padding: 1rem 1.25rem;
	border: 1px solid var(--wp--preset--color--border, #94a3b8);
	border-radius: 4px;
	text-decoration: none;
	transition: border-color var(--wp--custom--transition--base, 300ms) ease,
		background var(--wp--custom--transition--base, 300ms) ease;
}

.add-chapter-nav__link:hover {
	border-color: var(--wp--preset--color--accent, #b8934a);
	background: rgba(184, 147, 74, 0.05);
}

.add-chapter-nav__link--disabled {
	visibility: hidden;
}

.add-chapter-nav__link--next {
	text-align: right;
}

.add-chapter-nav__direction {
	font-size: 0.7rem;
	font-weight: 700;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--wp--preset--color--muted, #475569);
}

.add-chapter-nav__link--prev .add-chapter-nav__direction::before {
	content: "\2190\00a0";
}

.add-chapter-nav__link--next .add-chapter-nav__direction::after {
	content: "\00a0\2192";
}

.add-chapter-nav__title {
	font-size: 0.95rem;
	font-weight: 600;
	color: var(--wp--preset--color--contrast, #ffffff);
	line-height: 1.35;
}

/* ── Mobile ───────────────────────────────────────────────── */

@media (max-width: 600px) {
	.add-chapter-banner__inner {
		flex-direction: column;
		align-items: flex-start;
		gap: 0.25rem;
	}

	.add-chapter-banner__order {
		margin-left: 0;
	}

	.add-chapter-nav__inner {
		grid-template-columns: 1fr;
	}

	.add-chapter-nav__link--next {
		text-align: left;
	}

	.add-chapter-nav__link--next .add-chapter-nav__direction::after {
		content: none;
	}

	.add-chapter-nav__link--next .add-chapter-nav__direction::before {
		content: "\2192\00a0";
	}
}

/* ── Dark Mode ────────────────────────────────────────────── */

[data-theme="dark"] .add-chapter-banner {
	background: #0a0e1a;
}

[data-theme="dark"] .add-chapter-nav__link {
	border-color: var(--wp--preset--color--subtle, #334155);
}

[data-theme="dark"] .add-chapter-nav__link:hover {
	background: rgba(184, 147, 74, 0.08);
}