/**
 * Content pages — archive & single polish.
 * Extends frontend.css; does not alter homepage.
 */

/* ---------- Reading progress ---------- */
.ig-reading-progress {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 1000;
	height: 3px;
	pointer-events: none;
	background: transparent;
}

.ig-reading-progress__bar {
	display: block;
	height: 100%;
	width: 0%;
	background: var(--ig-color-primary);
	transform-origin: left center;
	transition: width 0.08s linear;
}

/* ---------- Archive hero ---------- */
.ig-archive-header--hero {
	padding-block: var(--ig-space-12) var(--ig-space-10);
}

.ig-archive-header--hero .ig-archive-header__title {
	font-size: clamp(1.75rem, 2.5vw + 1rem, 2.5rem);
	line-height: 1.2;
	letter-spacing: -0.02em;
	max-width: 20ch;
}

.ig-archive-header--hero .ig-archive-header__desc {
	max-width: 42rem;
	font-size: var(--ig-text-body);
	line-height: 1.65;
	margin-top: var(--ig-space-3);
}

.ig-page--archive,
.ig-page--single {
	padding-block: var(--ig-space-10) var(--ig-space-12);
}

/* ---------- Section heads ---------- */
.ig-archive-section__head {
	margin-bottom: var(--ig-space-5);
}

.ig-archive-section__title {
	margin: 0 0 var(--ig-space-2);
	font-size: var(--ig-text-h3);
	letter-spacing: -0.015em;
}

.ig-archive-section__desc {
	margin: 0;
	color: var(--ig-color-text-muted);
	font-size: var(--ig-text-small);
	max-width: 36rem;
}

.ig-archive-featured,
.ig-archive-latest,
.ig-archive-browse {
	margin-bottom: var(--ig-space-10);
}

/* ---------- Filters search ---------- */
.ig-filters__search {
	margin-bottom: var(--ig-space-5);
}

.ig-filters__control--search {
	min-height: 48px;
	font-size: var(--ig-text-body);
}

.ig-filters__control:focus-visible {
	outline: none;
	border-color: var(--ig-color-primary);
	box-shadow: var(--ig-focus-ring);
}

/* ---------- Latest list ---------- */
.ig-archive-latest__list {
	list-style: none;
	margin: 0;
	padding: 0;
	border: 1px solid var(--ig-color-border);
	border-radius: var(--ig-radius-lg);
	overflow: hidden;
	background: var(--ig-color-bg);
}

.ig-archive-latest__item + .ig-archive-latest__item {
	border-top: 1px solid var(--ig-color-border);
}

.ig-archive-latest__link {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	justify-content: space-between;
	gap: var(--ig-space-2) var(--ig-space-4);
	padding: var(--ig-space-4) var(--ig-space-5);
	text-decoration: none;
	color: var(--ig-color-text);
	transition: background-color 0.15s ease;
}

.ig-archive-latest__link:hover,
.ig-archive-latest__link:focus-visible {
	background: var(--ig-color-bg-light);
	color: var(--ig-color-primary);
}

.ig-archive-latest__title {
	font-weight: var(--ig-font-weight-medium);
	flex: 1 1 12rem;
}

.ig-archive-latest__date {
	font-size: var(--ig-text-caption);
	color: var(--ig-color-text-subtle);
	white-space: nowrap;
}

/* ---------- Archive CTA ---------- */
.ig-archive-cta {
	margin-top: var(--ig-space-10);
	padding: var(--ig-space-8) var(--ig-space-6);
	border-radius: var(--ig-radius-lg);
	background: linear-gradient(135deg, var(--ig-color-bg-light) 0%, var(--ig-color-bg) 100%);
	border: 1px solid var(--ig-color-border);
}

.ig-archive-cta__title {
	margin: 0 0 var(--ig-space-3);
	font-size: var(--ig-text-h3);
}

.ig-archive-cta__text {
	margin: 0 0 var(--ig-space-5);
	max-width: 36rem;
	color: var(--ig-color-text-muted);
	line-height: 1.6;
}

.ig-archive-cta__actions {
	display: flex;
	flex-wrap: wrap;
	gap: var(--ig-space-3);
}

.ig-archive-empty__actions {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: var(--ig-space-3);
	margin-top: var(--ig-space-5);
}

/* ---------- Single byline ---------- */
.ig-single-byline {
	display: flex;
	flex-wrap: wrap;
	gap: var(--ig-space-2) var(--ig-space-4);
	list-style: none;
	margin: var(--ig-space-4) 0 0;
	padding: 0;
	font-size: var(--ig-text-small);
	color: var(--ig-color-text-muted);
}

.ig-single-byline__label {
	font-weight: var(--ig-font-weight-semibold);
	margin-right: 0.25rem;
}

.ig-single-header .ig-archive-header__title {
	font-size: clamp(1.65rem, 2.2vw + 1rem, 2.35rem);
	line-height: 1.25;
	letter-spacing: -0.02em;
	max-width: 28ch;
}

/* ---------- Entry typography ---------- */
.ig-page--single .ig-entry-content {
	font-size: 1.0625rem;
	line-height: 1.75;
	max-width: 42rem;
}

.ig-page--single .ig-entry-content > *:first-child {
	margin-top: 0;
}

.ig-page--single .ig-entry-content h2 {
	margin-top: var(--ig-space-10);
	margin-bottom: var(--ig-space-4);
	font-size: var(--ig-text-h3);
	letter-spacing: -0.015em;
	scroll-margin-top: 5rem;
}

.ig-page--single .ig-entry-content h3 {
	margin-top: var(--ig-space-8);
	margin-bottom: var(--ig-space-3);
	font-size: var(--ig-text-h4);
	scroll-margin-top: 5rem;
}

.ig-page--single .ig-entry-content p {
	margin-bottom: var(--ig-space-5);
}

.ig-page--single .ig-entry-content a:focus-visible {
	outline: 2px solid var(--ig-color-primary);
	outline-offset: 2px;
}

/* ---------- TOC ---------- */
.ig-toc {
	margin: 0 0 var(--ig-space-8);
	padding: var(--ig-space-5);
	background: var(--ig-color-bg-light);
	border: 1px solid var(--ig-color-border);
	border-radius: var(--ig-radius-lg);
	max-width: 42rem;
}

.ig-toc__title {
	margin: 0 0 var(--ig-space-3);
	font-size: var(--ig-text-small);
	font-weight: var(--ig-font-weight-semibold);
	text-transform: uppercase;
	letter-spacing: 0.04em;
	color: var(--ig-color-text-muted);
}

.ig-toc__list {
	margin: 0;
	padding: 0 0 0 1.15rem;
	display: grid;
	gap: var(--ig-space-2);
}

.ig-toc__item--h3 {
	margin-left: var(--ig-space-3);
}

.ig-toc__list a {
	color: var(--ig-color-text);
	text-decoration: none;
	font-size: var(--ig-text-small);
}

.ig-toc__list a:hover,
.ig-toc__list a:focus-visible {
	color: var(--ig-color-primary);
	text-decoration: underline;
}

/* ---------- FAQ ---------- */
.ig-single-faq {
	margin-top: var(--ig-space-10);
	padding-top: var(--ig-space-8);
	border-top: 1px solid var(--ig-color-border);
}

.ig-single-faq__title {
	margin: 0 0 var(--ig-space-5);
	font-size: var(--ig-text-h3);
}

.ig-single-faq__list {
	display: grid;
	gap: var(--ig-space-3);
	max-width: 42rem;
}

.ig-single-faq__item {
	border: 1px solid var(--ig-color-border);
	border-radius: var(--ig-radius-md);
	background: var(--ig-color-bg);
	padding: 0 var(--ig-space-4);
}

.ig-single-faq__question {
	cursor: pointer;
	padding: var(--ig-space-4) 0;
	font-weight: var(--ig-font-weight-semibold);
	list-style: none;
}

.ig-single-faq__question::-webkit-details-marker {
	display: none;
}

.ig-single-faq__question:focus-visible {
	outline: 2px solid var(--ig-color-primary);
	outline-offset: 2px;
}

.ig-single-faq__answer {
	padding: 0 0 var(--ig-space-4);
	color: var(--ig-color-text-muted);
	line-height: 1.65;
}

.ig-single-faq__answer p {
	margin: 0;
}

/* ---------- Prev / next ---------- */
.ig-single-nav {
	display: grid;
	gap: var(--ig-space-4);
	margin-top: var(--ig-space-10);
	padding-top: var(--ig-space-8);
	border-top: 1px solid var(--ig-color-border);
}

@media (min-width: 640px) {
	.ig-single-nav {
		grid-template-columns: 1fr 1fr;
	}
}

.ig-single-nav__link {
	display: flex;
	flex-direction: column;
	gap: var(--ig-space-1);
	padding: var(--ig-space-4);
	border: 1px solid var(--ig-color-border);
	border-radius: var(--ig-radius-md);
	text-decoration: none;
	color: var(--ig-color-text);
	background: var(--ig-color-bg-light);
	min-height: 44px;
	transition: border-color 0.15s ease, color 0.15s ease;
}

.ig-single-nav__link:hover,
.ig-single-nav__link:focus-visible {
	border-color: var(--ig-color-primary);
	color: var(--ig-color-primary);
}

.ig-single-nav__link--next {
	text-align: right;
}

.ig-single-nav__label {
	font-size: var(--ig-text-caption);
	text-transform: uppercase;
	letter-spacing: 0.04em;
	color: var(--ig-color-text-subtle);
}

.ig-single-nav__title {
	font-size: var(--ig-text-small);
	font-weight: var(--ig-font-weight-semibold);
}

.ig-single-nav__link--empty {
	border: 0;
	background: transparent;
	padding: 0;
}

/* ---------- Newsletter CTA ---------- */
.ig-single-newsletter {
	margin-top: var(--ig-space-10);
	padding: var(--ig-space-8) var(--ig-space-6);
	border-radius: var(--ig-radius-lg);
	background: linear-gradient(135deg, var(--ig-color-bg-light) 0%, var(--ig-color-bg) 100%);
	border: 1px solid var(--ig-color-border);
}

.ig-single-newsletter__title {
	margin: 0 0 var(--ig-space-2);
	font-size: var(--ig-text-h3);
}

.ig-single-newsletter__text {
	margin: 0 0 var(--ig-space-5);
	color: var(--ig-color-text-muted);
	max-width: 36rem;
}

.ig-single-newsletter__form {
	display: flex;
	flex-wrap: wrap;
	gap: var(--ig-space-3);
	align-items: stretch;
}

.ig-single-newsletter__input {
	flex: 1 1 14rem;
	min-height: 44px;
	padding: 0.6rem 0.85rem;
	border: 1.5px solid var(--ig-color-border);
	border-radius: var(--ig-radius-md);
	background: var(--ig-color-bg);
	color: var(--ig-color-text);
}

.ig-single-newsletter__input:focus-visible {
	outline: none;
	border-color: var(--ig-color-primary);
	box-shadow: var(--ig-focus-ring);
}

.ig-single-newsletter__note {
	margin: var(--ig-space-3) 0 0;
	font-size: var(--ig-text-caption);
	color: var(--ig-color-text-subtle);
}

/* ---------- Sidebar polish ---------- */
.ig-page--archive .ig-sidebar,
.ig-page--single .ig-sidebar {
	position: sticky;
	top: var(--ig-space-6);
}

.ig-sidebar-card a:focus-visible {
	outline: 2px solid var(--ig-color-primary);
	outline-offset: 2px;
}

/* ---------- Cards spacing ---------- */
.ig-card--archive {
	height: 100%;
}

.ig-card--featured {
	box-shadow: none;
}

/* ---------- Pagination ---------- */
.ig-pagination {
	margin-top: var(--ig-space-8);
}

.ig-pagination ul {
	display: flex;
	flex-wrap: wrap;
	gap: var(--ig-space-2);
	list-style: none;
	margin: 0;
	padding: 0;
}

.ig-pagination a,
.ig-pagination span {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 44px;
	min-height: 44px;
	padding: 0.35rem 0.75rem;
	border: 1px solid var(--ig-color-border);
	border-radius: var(--ig-radius-md);
	text-decoration: none;
	color: var(--ig-color-text);
	font-size: var(--ig-text-small);
}

.ig-pagination a:hover,
.ig-pagination a:focus-visible {
	border-color: var(--ig-color-primary);
	color: var(--ig-color-primary);
}

.ig-pagination .current {
	background: var(--ig-color-primary);
	border-color: var(--ig-color-primary);
	color: #fff;
}

/* ---------- Mobile ---------- */
@media (max-width: 639px) {
	.ig-archive-header--hero {
		padding-block: var(--ig-space-8) var(--ig-space-6);
	}

	.ig-page--archive,
	.ig-page--single {
		padding-block: var(--ig-space-6) var(--ig-space-8);
	}

	.ig-single-toolbar__btn {
		min-height: 40px;
	}

	.ig-page--archive .ig-sidebar,
	.ig-page--single .ig-sidebar {
		position: static;
	}
}

@media print {
	.ig-reading-progress,
	.ig-toc,
	.ig-single-newsletter,
	.ig-single-nav,
	.ig-archive-cta {
		display: none !important;
	}
}