/**
 * Responsive styles for DigitalMSN theme.
 *
 * Mobile-first breakpoints: 768px, 1024px, 1200px.
 *
 * @package DigitalMSN
 * @since 1.1.0
 */

/* ==========================================================================
   Base / Mobile (< 768px)
   ========================================================================== */

.site-header__inner {
	flex-direction: column;
	text-align: center;
	gap: var(--spacing-sm);
}

.site-header .site-branding,
.site-header .main-navigation {
	width: 100%;
}

.site-header__actions {
	display: none;
}

.menu-toggle {
	display: block;
	background: none;
	border: 2px solid var(--color-primary);
	color: var(--color-primary);
	padding: 0.5rem 1rem;
	font-size: 1rem;
	cursor: pointer;
	border-radius: var(--radius-sm);
}

.menu-toggle:focus {
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
}

.main-navigation {
	display: none;
	width: 100%;
}

.main-navigation.toggled {
	display: block;
}

.main-navigation ul {
	display: flex;
	flex-direction: column;
	list-style: none;
	margin: 0;
	padding: 0;
}

.main-navigation li {
	border-bottom: 1px solid var(--color-border);
}

.main-navigation a {
	display: block;
	padding: 0.75rem 1rem;
	color: var(--color-text);
	text-decoration: none;
}

.main-navigation .sub-menu {
	padding-left: 1rem;
}

.site-content {
	flex-direction: column;
}

.widget-area {
	width: 100%;
	margin-top: var(--spacing-lg);
}

.site-grid,
.posts-grid {
	grid-template-columns: 1fr;
}

/* Category archive — mobile */
.article-card {
	flex-direction: column;
}

.article-card__image {
	width: 100%;
	height: 12rem;
}

.category-filter-bar {
	flex-direction: column;
	align-items: stretch;
}

.category-filter-bar__search {
	max-width: none;
}

.category-hero__title {
	font-size: 2rem;
}

.author-hero__name {
	font-size: 1.75rem;
}

.footer-columns {
	grid-template-columns: 1fr;
}

.related-posts__grid {
	grid-template-columns: 1fr;
}

.homepage-hero__grid {
	grid-template-columns: 1fr;
}

.homepage-hero__image {
	height: 300px;
}

.homepage-latest__grid {
	grid-template-columns: 1fr;
}

.homepage-cats-sidebar__grid {
	grid-template-columns: 1fr;
}

.homepage-cats-sidebar__icons {
	grid-template-columns: repeat(2, 1fr);
}

.homepage-guides__grid {
	grid-template-columns: 1fr;
}

.homepage-newsletter__grid {
	flex-direction: column;
}

.homepage-newsletter__form {
	flex-direction: column;
}

/* Single post: neutralize the .site-content 2-col grid at ALL breakpoints. */
body.single-post #primary.site-content {
	display: block;
	max-width: none;
	padding: 0;
}

body.single-post .site-main {
	max-width: none;
}

.site-info {
	flex-direction: column;
	text-align: center;
	gap: var(--spacing-sm);
}

.site-info__tagline {
	display: block;
}

/* Back to top button. */
.back-to-top {
	position: fixed;
	bottom: 2rem;
	right: 2rem;
	background: var(--color-primary);
	color: #ffffff;
	border: none;
	width: 44px;
	height: 44px;
	border-radius: 50%;
	cursor: pointer;
	font-size: 1.25rem;
	line-height: 1;
	opacity: 0;
	visibility: hidden;
	transition: opacity 0.3s, visibility 0.3s;
	z-index: 999;
}

.back-to-top.is-visible {
	opacity: 1;
	visibility: visible;
}

.back-to-top:hover,
.back-to-top:focus {
	background: var(--color-primary-dark);
	outline: 2px solid var(--color-primary-dark);
	outline-offset: 2px;
}

/* ==========================================================================
   Tablet (>= 768px)
   ========================================================================== */

@media screen and (min-width: 768px) {
	.site-header__inner {
		flex-direction: row;
		text-align: left;
		display: flex;
		align-items: center;
		justify-content: space-between;
	}

	.site-header .site-branding,
	.site-header .main-navigation {
		width: auto;
	}

	.site-header__actions {
		display: flex;
	}

	.menu-toggle {
		display: none;
	}

	.main-navigation {
		display: block;
		width: auto;
	}

	.main-navigation ul {
		flex-direction: row;
		gap: 0;
	}

	.main-navigation li {
		border-bottom: none;
		position: relative;
	}

	.main-navigation a {
		padding: 0.5rem 1rem;
	}

	.main-navigation .sub-menu {
		display: none;
		position: absolute;
		top: 100%;
		left: 0;
		background: #ffffff;
		box-shadow: var(--shadow-md);
		min-width: 200px;
		padding: 0.5rem 0;
		z-index: 100;
		border-radius: var(--radius-lg);
	}

	.main-navigation .sub-menu li {
		border-bottom: none;
	}

	.main-navigation .sub-menu a {
		padding: 0.5rem 1rem;
		white-space: nowrap;
	}

	.main-navigation li:hover > .sub-menu,
	.main-navigation li.focus > .sub-menu {
		display: block;
	}

	.site-content {
		flex-direction: row;
		gap: var(--spacing-lg);
	}

	.site-main {
		flex: 1;
	}

	.entry-takeaways__grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.widget-area {
		width: 300px;
		flex-shrink: 0;
		margin-top: 0;
		display: block;
	}

	.site-grid,
	.posts-grid {
		display: grid;
		grid-template-columns: repeat(2, 1fr);
		gap: 2rem;
	}

	.footer-columns {
		grid-template-columns: repeat(2, 1fr);
	}

	.related-posts__grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.homepage-hero__grid {
		grid-template-columns: 1fr 1fr;
	}

	.homepage-hero__image {
		height: 500px;
	}

	.homepage-hero__title {
		font-size: 2.5rem;
	}

	.homepage-hero__content {
		padding: 3rem;
	}

	.homepage-latest__grid {
		grid-template-columns: repeat(3, 1fr);
	}

	.homepage-cats-sidebar__icons {
		grid-template-columns: repeat(4, 1fr);
	}

	.homepage-newsletter__grid {
		flex-direction: row;
		align-items: center;
	}

	.homepage-newsletter__form {
		flex-direction: row;
	}

	.homepage-newsletter__input {
		flex: 1;
	}

	/* Newsletter Landing Page — Tablet */
	.nl-hero__form {
		flex-direction: row;
	}

	.nl-benefits__grid {
		grid-template-columns: repeat(3, 1fr);
	}

	.nl-testimonials__grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.nl-cta__form {
		flex-direction: row;
	}

	.nl-cta__card {
		padding: 4rem 3rem;
	}

	/* About Page — Tablet */
	.about-hero__title {
		font-size: 3.5rem;
	}

	.about-philosophy__grid {
		grid-template-columns: repeat(3, 1fr);
	}

	.about-team__grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.about-cta__card {
		flex-direction: row;
		align-items: center;
		justify-content: space-between;
		padding: var(--spacing-xl) 4rem;
	}

	.about-cta__content {
		text-align: left;
		max-width: 540px;
	}

	.about-cta__form {
		flex-direction: row;
	}

	.site-info {
		flex-direction: row;
		text-align: left;
	}

	.entry-content {
		font-size: 1.0625rem;
	}

	/* Category archive — tablet */
	.article-card {
		flex-direction: row;
	}

	.article-card__image {
		width: 288px;
		height: 240px;
	}

	.category-filter-bar {
		flex-direction: row;
		align-items: center;
	}

	.category-filter-bar__search {
		max-width: 28rem;
	}

	.category-hero__title {
		font-size: 2.5rem;
	}

	/* Author hero — horizontal layout on tablet */
	.author-hero {
		flex-direction: row;
		text-align: left;
		align-items: flex-start;
	}

	.author-hero__name {
		font-size: 2.25rem;
	}
}

/* ==========================================================================
   Desktop (>= 1024px)
   ========================================================================== */

@media screen and (min-width: 1024px) {
	.single-post-layout {
		grid-template-columns: 220px 1fr;
		gap: 2.5rem;
	}

	.single-post-layout__toc {
		display: block;
	}

	.single .entry-title {
		font-size: 2.5rem;
	}

	.homepage-hero__title {
		font-size: 3rem;
	}

	.homepage-cats-sidebar__grid {
		grid-template-columns: 3fr 1fr;
		gap: 3rem;
	}

	/* About Page — Desktop */
	.about-hero {
		padding: 5rem 10rem;
	}

	.about-hero__title {
		font-size: 4rem;
	}

	.about-philosophy {
		padding: var(--spacing-xl) 10rem;
	}

	.about-team {
		padding: 5rem 10rem;
	}

	.about-timeline {
		padding: 5rem 10rem;
	}

	.about-timeline__track {
		padding-left: 0;
	}

	.about-timeline__track::before {
		left: 50%;
		transform: translateX(-50%);
	}

	.about-timeline__dot {
		left: 50%;
		transform: translateX(-50%);
	}

	.about-timeline__content--left {
		width: calc(50% - 3rem);
		text-align: right;
	}

	.about-timeline__content--right {
		width: calc(50% - 3rem);
		margin-left: auto;
	}

	.about-cta {
		padding: 5rem 10rem;
	}

	.about-cta__title {
		font-size: 2.25rem;
	}

	/* Newsletter Landing Page — Desktop */
	.nl-hero {
		padding: 6rem var(--spacing-md);
	}

	.nl-hero__grid {
		grid-template-columns: 1fr 1fr;
	}

	.nl-hero__content {
		order: 1;
	}

	.nl-hero__image-wrap {
		order: 2;
	}

	.nl-hero__title {
		font-size: 4.5rem;
	}

	.nl-benefits__title {
		font-size: 2.5rem;
	}

	.nl-testimonials__title {
		font-size: 2rem;
	}

	.nl-cta__title {
		font-size: 3rem;
	}

	.nl-cta__card {
		padding: 5rem;
	}

	.homepage-guides__grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.site-content {
		display: grid;
		grid-template-columns: 1fr 300px;
		gap: 3rem;
	}

	.site-grid,
	.posts-grid {
		grid-template-columns: repeat(3, 1fr);
	}

	.related-posts__grid {
		grid-template-columns: repeat(3, 1fr);
	}

	.entry-content {
		font-size: 1.125rem;
		line-height: 1.7;
	}

	/* Category archive — desktop: 8+4 grid like Stitch design */
	.category-layout {
		grid-template-columns: 8fr 4fr;
		gap: 3rem;
	}

	/* Author archive — desktop: 8+4 grid */
	.author-layout {
		grid-template-columns: 8fr 4fr;
		gap: 3rem;
	}

	.author-hero__name {
		font-size: 2.5rem;
	}

	.category-hero__title {
		font-size: 3rem;
	}
}

/* ==========================================================================
   Wide Desktop (>= 1200px)
   ========================================================================== */

@media screen and (min-width: 1200px) {
	.site-container,
	.container {
		max-width: 1200px;
		margin-left: auto;
		margin-right: auto;
		padding-left: var(--spacing-lg);
		padding-right: var(--spacing-lg);
	}

	.posts-grid {
		grid-template-columns: repeat(3, 1fr);
	}

	.site-content {
		grid-template-columns: 1fr 340px;
	}

	.footer-columns {
		grid-template-columns: 2fr 1fr 1fr 1fr;
	}

	/* Resources Page — Wide Desktop */
	.resources-grid {
		grid-template-columns: repeat(4, 1fr);
	}

	.site-info__tagline {
		display: block;
	}
}

/* ==========================================================================
   Extra Wide Desktop (>= 1280px) — single post 3-column layout
   ========================================================================== */

@media screen and (min-width: 1280px) {
	.single-post-layout {
		grid-template-columns: 220px 1fr 220px;
		gap: 3rem;
	}

	.single-post-layout__sidebar {
		display: block;
	}

	.single .entry-title {
		font-size: 3rem;
	}
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
	.site-header,
	.site-footer,
	.main-navigation,
	.widget-area,
	.back-to-top,
	.post-card__thumbnail,
	.entry-thumbnail,
	.comments-area,
	.related-posts,
	.post-navigation,
	.menu-toggle,
	.single-post-layout__toc,
	.single-post-layout__sidebar,
	.single-cta-card,
	.single-share,
	.single-post-newsletter,
	.nl-cta,
	#respond {
		display: none;
	}

	.single-post-layout {
		display: block;
	}

	body {
		font-size: 12pt;
		line-height: 1.5;
		color: #000;
		background: #fff;
	}

	.site-content {
		display: block;
		width: 100%;
	}

	.entry-content {
		max-width: 100%;
		font-size: 12pt;
	}

	.entry-title {
		font-size: 24pt;
	}

	a {
		color: #000;
		text-decoration: underline;
	}

	a[href]::after {
		content: " (" attr(href) ")";
		font-size: 0.8em;
	}

	a[href^="#"]::after,
	a[href^="javascript:"]::after {
		content: "";
	}

	img {
		max-width: 100%;
		page-break-inside: avoid;
	}

	h2,
	h3 {
		page-break-after: avoid;
	}
}

/* ==========================================================================
   Contact Page — Responsive
   ========================================================================== */

@media screen and (min-width: 768px) {
	.contact-hero__title {
		font-size: 2.75rem;
	}

	.contact-form__row {
		grid-template-columns: 1fr 1fr;
	}

	.contact-form__submit {
		width: auto;
		padding-left: 3rem;
		padding-right: 3rem;
	}

	/* Resources Page — Tablet */
	.resources-hero__title {
		font-size: 2.75rem;
	}

	.resources-grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.resources-cta__actions {
		flex-direction: row;
	}
}

@media screen and (min-width: 768px) {
	.glossary-hero__title {
		font-size: 2.5rem;
	}
}

@media screen and (min-width: 1024px) {
	.glossary-layout {
		grid-template-columns: 8fr 4fr;
		gap: 3rem;
	}

	.glossary-layout__sidebar {
		position: sticky;
		top: 6rem;
		align-self: start;
	}

	.glossary-hero__title {
		font-size: 3rem;
	}

	.glossary-card__inner {
		flex-direction: row;
	}

	.glossary-card__image {
		width: 192px;
		height: 160px;
	}
}

@media screen and (min-width: 1024px) {
	.contact-hero {
		padding-top: 5rem;
		padding-bottom: 5rem;
	}

	.contact-hero__title {
		font-size: 3rem;
	}

	.contact-grid {
		grid-template-columns: 2fr 1fr;
	}

	/* Resources Page — Desktop */
	.resources-hero__title {
		font-size: 3rem;
	}

	.resources-grid {
		grid-template-columns: repeat(3, 1fr);
	}

	.resources-cta__card {
		padding: var(--spacing-xl) 5rem;
	}

	.resources-cta__title {
		font-size: 2.25rem;
	}
}