/* ==========================================================================
   B2B Brand Management – platform components
   Navigation groups, content-type cards, detail pages, store and account.
   Uses the tokens and components defined in main.css.
   ========================================================================== */

/* Header: dropdown groups + cart
   ========================================================================== */

.site-header__actions {
	display: flex;
	align-items: center;
	gap: 12px;
}

.nav-group {
	position: relative;
}

.nav-group__toggle {
	position: relative;
	display: inline-flex;
	align-items: center;
	gap: 4px;
	padding: 0.5rem 0;
	border: 0;
	background: none;
	color: #fff;
	font: inherit;
	font-size: 0.9375rem;
	cursor: pointer;
}

.nav-group__toggle .icon {
	width: 16px;
	height: 16px;
	transition: transform 0.2s;
}

.nav-group__toggle[aria-expanded="true"] .icon {
	transform: rotate(180deg);
}

.nav-group__toggle::after {
	position: absolute;
	right: 0;
	bottom: 0;
	left: 0;
	height: 2px;
	background: var(--c-primary);
	content: "";
	transform: scaleX(0);
	transition: transform 0.2s;
}

.nav-group.is-current > .nav-group__toggle::after {
	transform: scaleX(1);
}

.nav-group__menu {
	position: absolute;
	top: calc(100% + 14px);
	left: -16px;
	z-index: 60;
	display: none;
	min-width: 230px;
	margin: 0;
	padding: 8px;
	border: 1px solid var(--c-border);
	border-radius: 12px;
	background: var(--c-surface);
	box-shadow: var(--shadow);
	list-style: none;
}

.nav-group__menu::before {
	position: absolute;
	top: -16px;
	right: 0;
	left: 0;
	height: 16px;
	content: "";
}

.nav-group__toggle[aria-expanded="true"] + .nav-group__menu {
	display: block;
}

.site-nav__list .nav-group__menu a {
	padding: 10px 12px;
	border-radius: 8px;
}

.site-nav__list .nav-group__menu a::after {
	display: none;
}

.site-nav__list .nav-group__menu a:hover {
	background: var(--c-surface-hover);
}

.site-nav__list .nav-group__menu a[aria-current] {
	color: var(--c-accent);
}

@media (hover: hover) and (min-width: 1024px) {
	.nav-group:hover > .nav-group__menu {
		display: block;
	}
}

.cart-link {
	position: relative;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	border-radius: var(--radius-sm);
	color: #fff;
}

.cart-link:hover {
	color: var(--c-accent);
}

.cart-link .icon {
	width: 22px;
	height: 22px;
}

.cart-link__count {
	position: absolute;
	top: 4px;
	right: 2px;
	min-width: 18px;
	height: 18px;
	padding: 0 5px;
	border-radius: 9px;
	background: var(--c-accent);
	color: var(--c-on-accent);
	font-size: 0.6875rem;
	font-weight: 700;
	line-height: 18px;
	text-align: center;
}

@media (max-width: 1023px) {
	.nav-group__toggle {
		justify-content: space-between;
		width: 100%;
		padding: 16px 0;
		border-bottom: 1px solid var(--c-border);
		font-size: 1.25rem;
	}

	.nav-group__toggle::after {
		display: none;
	}

	.nav-group__menu {
		position: static;
		min-width: 0;
		padding: 4px 0 8px 16px;
		border: 0;
		background: none;
		box-shadow: none;
	}

	.site-nav__list .nav-group__menu a {
		padding: 12px 0;
		border-bottom: 0;
		font-size: 1rem;
	}

	.nav-toggle {
		margin-right: -8px;
	}
}

/* Shared bits
   ========================================================================== */

.tag {
	display: inline-block;
	margin-left: 8px;
	padding: 1px 8px;
	border-radius: var(--radius-pill);
	font-size: 0.625rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	vertical-align: middle;
}

.tag--provisional {
	border: 1px solid rgba(255, 208, 0, 0.5);
	color: var(--c-accent);
}

.test-notice {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	margin: 0 0 32px;
	padding: 12px 16px;
	border: 1px solid rgba(255, 208, 0, 0.35);
	border-radius: 12px;
	background: rgba(255, 208, 0, 0.07);
	color: #fff;
	font-size: 0.875rem;
}

.test-notice .icon {
	width: 18px;
	height: 18px;
	margin-top: 2px;
	color: var(--c-accent);
}

.empty-state {
	padding: 40px;
	border: 1px dashed var(--c-border);
	border-radius: var(--radius);
	color: var(--c-muted);
	text-align: center;
}

.chip-nav a[aria-current] {
	border-color: var(--c-accent);
	color: var(--c-accent);
}

.page-body > .chip-nav {
	margin: 0 0 32px;
}

.btn--block {
	width: 100%;
}

.inline-action {
	display: inline-flex;
	margin: 0;
}

.inline-action .btn {
	width: 100%;
}

.monogram {
	display: grid;
	place-items: center;
	width: 100%;
	height: 100%;
	min-height: 180px;
	background: linear-gradient(0deg, var(--c-bg-alt), var(--c-bg-alt));
	color: var(--c-accent);
	font-size: clamp(2rem, 1.5rem + 2vw, 3.5rem);
	font-weight: 700;
	letter-spacing: 0.04em;
}

.group-title {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	justify-content: space-between;
	gap: 8px 24px;
	margin: 0 0 24px;
	padding-top: 24px;
	border-top: 1px solid var(--c-border);
}

.group-title h2 {
	margin: 0;
	font-size: clamp(1.375rem, 1.2rem + 0.8vw, 2rem);
}

.content-group + .content-group {
	margin-top: clamp(48px, 6vw, 88px);
}

/* Card grids + generic content card
   ========================================================================== */

.card-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: clamp(16px, 2vw, 28px);
}

.card-grid--4 {
	grid-template-columns: repeat(4, minmax(0, 1fr));
}

.c-card {
	position: relative;
	display: flex;
	flex-direction: column;
	height: 100%;
	overflow: hidden;
	border-radius: var(--radius);
	background: var(--c-surface);
	transition: background-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.c-card:hover {
	background: var(--c-surface-hover);
	box-shadow: var(--shadow);
	transform: translateY(-4px);
}

.c-card__media {
	position: relative;
	display: grid;
	place-items: center;
	aspect-ratio: 16 / 10;
	overflow: hidden;
	background: var(--c-bg-deep);
}

.c-card__media img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.c-card__media--logo {
	aspect-ratio: 16 / 9;
	padding: 28px;
	background: #fff;
}

.c-card__media--logo img {
	width: auto;
	max-width: 80%;
	height: auto;
	max-height: 90px;
	object-fit: contain;
}

.c-card__logo-text {
	color: #1a1a1a;
	font-size: 1.375rem;
	font-weight: 700;
	text-align: center;
}

.c-card__placeholder {
	color: var(--c-accent);
}

.c-card__placeholder .icon {
	width: 44px;
	height: 44px;
	opacity: 0.8;
}

.c-card__badge {
	position: absolute;
	top: 14px;
	left: 14px;
	padding: 4px 12px;
	border-radius: var(--radius-pill);
	background: var(--c-accent);
	color: var(--c-on-accent);
	font-size: 0.75rem;
	font-weight: 700;
}

.c-card__body {
	display: flex;
	flex: 1;
	flex-direction: column;
	gap: 10px;
	padding: 22px 24px 22px;
}

.c-card__eyebrow {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 6px;
	margin: 0;
	color: var(--c-accent);
	font-size: 0.75rem;
	font-weight: 700;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.c-card__eyebrow .icon {
	width: 16px;
	height: 16px;
}

.c-card__eyebrow .tag {
	margin-left: 0;
}

.c-card__title {
	margin: 0;
	font-size: 1.25rem;
	line-height: 1.3;
}

.c-card__title a::after {
	position: absolute;
	inset: 0;
	content: "";
}

.c-card__text {
	display: -webkit-box;
	margin: 0;
	overflow: hidden;
	font-size: 0.9375rem;
	line-height: 1.55;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
}

.c-card__text--long {
	-webkit-line-clamp: 4;
}

.c-card__facts {
	display: flex;
	flex-wrap: wrap;
	gap: 6px 16px;
	margin: 0;
	padding: 0;
	color: var(--c-muted);
	font-size: 0.875rem;
	list-style: none;
}

.c-card__facts li {
	display: inline-flex;
	align-items: center;
	gap: 6px;
}

.c-card__facts .icon {
	width: 16px;
	height: 16px;
	color: var(--c-accent);
}

.c-card__footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-top: auto;
	padding-top: 14px;
	border-top: 1px solid var(--c-border);
	font-size: 0.875rem;
}

.c-card__price {
	color: #fff;
	font-weight: 700;
}

.c-card__cta {
	display: inline-flex;
	flex-shrink: 0;
	align-items: center;
	gap: 4px;
	color: var(--c-accent);
	font-weight: 700;
}

.c-card__cta .icon {
	width: 16px;
	height: 16px;
}

.c-card--text .c-card__body {
	padding-top: 26px;
}

/* E-book card (edition card language) */

.ebook-card .edition-card__cover {
	position: relative;
}

.ebook-card__format {
	position: absolute;
	top: 12px;
	right: 12px;
	padding: 3px 10px;
	border-radius: var(--radius-pill);
	background: var(--c-bg);
	color: #fff;
	font-size: 0.6875rem;
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
}

.ebook-card__footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 8px;
	margin-top: auto;
	padding-top: 12px;
}

.ebook-card__footer .edition-card__cta {
	margin: 0;
	padding: 0;
}

.ebook-card__price {
	color: var(--c-accent);
	font-weight: 700;
}

/* People
   ========================================================================== */

.person-card {
	position: relative;
	display: flex;
	flex-direction: column;
	height: 100%;
	overflow: hidden;
	border-radius: var(--radius);
	background: var(--c-surface);
	transition: background-color 0.25s, transform 0.25s;
}

.person-card:hover {
	background: var(--c-surface-hover);
	transform: translateY(-4px);
}

.person-card__photo {
	aspect-ratio: 4 / 5;
	overflow: hidden;
	background: var(--c-bg-alt);
}

.person-card__photo img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: top center;
}

.person-card__body {
	display: flex;
	flex: 1;
	flex-direction: column;
	gap: 6px;
	padding: 18px 20px 22px;
}

.person-card__name {
	margin: 0;
	font-size: 1.1875rem;
	line-height: 1.3;
}

.person-card__name a::after {
	position: absolute;
	inset: 0;
	content: "";
}

.person-card__role {
	margin: 0;
	color: var(--c-muted);
	font-size: 0.875rem;
	line-height: 1.45;
}

.person-card .c-card__cta {
	margin-top: auto;
	padding-top: 10px;
	font-size: 0.875rem;
}

/* Detail pages
   ========================================================================== */

.detail-hero {
	display: grid;
	grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
	align-items: center;
	gap: clamp(32px, 6vw, 96px);
	padding-bottom: clamp(40px, 5vw, 80px);
}

.detail-hero__title {
	font-size: var(--fs-h1);
}

.detail-hero__lead {
	max-width: 62ch;
	font-size: var(--fs-lead);
}

.detail-hero__media {
	overflow: hidden;
	border-radius: var(--radius-lg);
	background: var(--c-surface);
}

.detail-hero__media img {
	width: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
}

.detail-hero__media--logo {
	display: grid;
	place-items: center;
	aspect-ratio: 4 / 3;
	padding: 48px;
	background: #fff;
}

.detail-hero__media--logo img {
	width: auto;
	max-height: 160px;
	aspect-ratio: auto;
	object-fit: contain;
}

.fact-row {
	display: flex;
	flex-wrap: wrap;
	gap: 10px 24px;
	margin: 0 0 1.5rem;
	padding: 0;
	color: var(--c-text);
	font-size: 0.9375rem;
	list-style: none;
}

.fact-row li {
	display: inline-flex;
	align-items: center;
	gap: 8px;
}

.fact-row .icon {
	width: 18px;
	height: 18px;
	color: var(--c-accent);
}

.detail-section + .detail-section {
	margin-top: clamp(40px, 5vw, 64px);
}

.detail-section > h2 {
	margin-bottom: 20px;
	font-size: clamp(1.5rem, 1.25rem + 1vw, 2.25rem);
}

.detail-section .check-list li {
	padding-block: 14px;
}

.stat-tiles {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
	gap: 12px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.stat-tiles li {
	padding: 20px;
	border-radius: var(--radius);
	background: var(--c-surface);
}

.stat-tiles strong {
	display: block;
	color: var(--c-accent);
	font-size: clamp(1.5rem, 1.2rem + 1vw, 2.25rem);
	font-weight: 600;
	line-height: 1.1;
}

.stat-tiles span {
	color: #fff;
	font-size: 0.875rem;
}

.pill-list {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.pill-list li {
	padding: 6px 14px;
	border: 1px solid rgba(255, 255, 255, 0.18);
	border-radius: var(--radius-pill);
	color: #fff;
	font-size: 0.875rem;
}

.link-list {
	margin: 0;
	padding: 0;
	list-style: none;
}

.link-list a {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	padding: 16px 0;
	border-bottom: 1px solid var(--c-border);
	color: #fff;
}

.link-list a:hover {
	color: var(--c-accent);
}

.link-list .icon {
	width: 18px;
	height: 18px;
	color: var(--c-accent);
}

.photo-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 12px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.photo-grid img {
	width: 100%;
	height: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	border-radius: 12px;
}

.curriculum {
	margin: 0;
	padding: 0;
	border-top: 1px solid var(--c-border);
	list-style: none;
	counter-reset: module;
}

.curriculum li {
	display: grid;
	grid-template-columns: 56px minmax(0, 1fr);
	gap: 16px;
	padding: 20px 0;
	border-bottom: 1px solid var(--c-border);
	counter-increment: module;
}

.curriculum li::before {
	color: var(--c-accent);
	font-weight: 700;
	letter-spacing: 0.08em;
	content: counter(module, decimal-leading-zero);
}

.curriculum strong {
	display: block;
	margin-bottom: 4px;
	color: #fff;
	font-size: 1.0625rem;
}

.curriculum p {
	margin: 0;
	font-size: 0.9375rem;
}

.curriculum .lesson-state {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	margin-top: 10px;
	color: var(--c-muted);
	font-size: 0.8125rem;
}

.curriculum .lesson-state .icon {
	width: 14px;
	height: 14px;
}

/* Purchase / summary cards (aside) */

.purchase-card {
	position: sticky;
	top: calc(var(--header-h) + 24px);
	display: grid;
	gap: 16px;
	padding: 28px;
	border: 1px solid var(--c-border);
	border-radius: var(--radius-lg);
	background: var(--c-surface);
}

.purchase-card__price {
	margin: 0;
	color: #fff;
	font-size: clamp(2rem, 1.6rem + 1.2vw, 2.75rem);
	font-weight: 600;
	line-height: 1;
}

.purchase-card__format {
	margin: 0;
	color: var(--c-muted);
	font-size: 0.9375rem;
}

.purchase-card__actions {
	display: grid;
	gap: 10px;
}

.assurance-list {
	display: grid;
	gap: 10px;
	margin: 0;
	padding: 16px 0 0;
	border-top: 1px solid var(--c-border);
	font-size: 0.875rem;
	list-style: none;
}

.assurance-list li {
	display: flex;
	align-items: flex-start;
	gap: 10px;
}

.assurance-list .icon {
	width: 18px;
	height: 18px;
	margin-top: 2px;
	color: var(--c-accent);
}

.owned-note {
	display: flex;
	align-items: center;
	gap: 8px;
	margin: 0;
	color: #8ee6b1;
	font-weight: 700;
}

/* Store home
   ========================================================================== */

.store-feature {
	display: grid;
	grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
	align-items: center;
	gap: clamp(32px, 5vw, 80px);
	padding: clamp(24px, 4vw, 48px);
	border-radius: var(--radius-lg);
	background: var(--c-surface);
}

.store-feature + .store-feature {
	margin-top: 24px;
}

.store-feature .book-cover {
	max-width: 300px;
	box-shadow: var(--shadow);
}

.store-feature__price {
	margin: 0 0 1rem;
	color: var(--c-accent);
	font-size: 1.5rem;
	font-weight: 700;
}

.steps {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 16px;
	margin: 0;
	padding: 0;
	list-style: none;
	counter-reset: step;
}

.steps li {
	padding: 24px;
	border: 1px solid var(--c-border);
	border-radius: var(--radius);
	counter-increment: step;
}

.steps li::before {
	display: block;
	margin-bottom: 14px;
	color: var(--c-accent);
	font-size: 0.875rem;
	font-weight: 700;
	letter-spacing: 0.1em;
	content: counter(step, decimal-leading-zero);
}

.steps h3 {
	font-size: 1.125rem;
}

.steps p {
	margin: 0;
	font-size: 0.9375rem;
}

/* Cart / checkout / order
   ========================================================================== */

.store-layout {
	display: grid;
	grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
	align-items: start;
	gap: clamp(24px, 4vw, 64px);
}

.panel {
	padding: clamp(24px, 3vw, 40px);
	border-radius: var(--radius-lg);
	background: var(--c-surface);
}

.panel h2 {
	font-size: clamp(1.375rem, 1.2rem + 0.6vw, 1.75rem);
}

.line-items {
	margin: 0;
	padding: 0;
	list-style: none;
}

.line-item {
	display: grid;
	grid-template-columns: 64px minmax(0, 1fr) auto;
	align-items: center;
	gap: 16px;
	padding: 16px 0;
	border-bottom: 1px solid var(--c-border);
}

.line-item:first-child {
	padding-top: 0;
}

.line-item__thumb {
	overflow: hidden;
	border-radius: 6px;
	background: #fff;
	aspect-ratio: 5 / 8;
}

.line-item__thumb img {
	width: 100%;
	height: 100%;
	object-fit: contain;
}

.line-item__title {
	margin: 0;
	color: #fff;
	font-weight: 700;
	line-height: 1.35;
}

.line-item__meta {
	margin: 2px 0 0;
	color: var(--c-muted);
	font-size: 0.875rem;
}

.line-item__end {
	display: grid;
	justify-items: end;
	gap: 6px;
}

.line-item__price {
	color: #fff;
	font-weight: 700;
}

.text-button {
	padding: 0;
	border: 0;
	background: none;
	color: var(--c-muted);
	font: inherit;
	font-size: 0.8125rem;
	text-decoration: underline;
	cursor: pointer;
}

.text-button:hover {
	color: #fff;
}

.totals {
	display: grid;
	gap: 10px;
	margin: 0 0 20px;
}

.totals div {
	display: flex;
	justify-content: space-between;
	gap: 12px;
}

.totals dt {
	color: var(--c-muted);
}

.totals dd {
	margin: 0;
	color: #fff;
}

.totals .totals__grand {
	padding-top: 12px;
	border-top: 1px solid var(--c-border);
	font-size: 1.25rem;
	font-weight: 700;
}

.totals .totals__grand dt {
	color: #fff;
}

.field-check {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	font-size: 0.9375rem;
}

.field-check input {
	width: 18px;
	height: 18px;
	margin-top: 3px;
	accent-color: var(--c-primary);
}

.status-pill {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 6px 14px;
	border-radius: var(--radius-pill);
	background: rgba(142, 230, 177, 0.12);
	color: #8ee6b1;
	font-size: 0.8125rem;
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
}

.status-pill .icon {
	width: 16px;
	height: 16px;
}

.status-pill--pending {
	background: rgba(255, 208, 0, 0.12);
	color: var(--c-accent);
}

.order-hero {
	max-width: 760px;
	margin-bottom: 32px;
}

.order-hero h1 {
	font-size: var(--fs-h1);
}

.purchase-row {
	display: grid;
	grid-template-columns: 96px minmax(0, 1fr) auto;
	align-items: center;
	gap: 20px;
	padding: 20px 0;
	border-bottom: 1px solid var(--c-border);
}

.purchase-row:first-child {
	padding-top: 0;
}

.purchase-row .line-item__thumb {
	width: 96px;
}

.purchase-row__title {
	margin: 0;
	font-size: 1.25rem;
}

.purchase-row__meta {
	margin: 4px 0 0;
	color: var(--c-muted);
	font-size: 0.875rem;
}

.detail-list {
	display: grid;
	gap: 12px;
	margin: 0;
}

.detail-list div {
	display: grid;
	gap: 2px;
}

.detail-list dt {
	color: var(--c-muted);
	font-size: 0.8125rem;
	letter-spacing: 0.06em;
	text-transform: uppercase;
}

.detail-list dd {
	margin: 0;
	color: #fff;
	overflow-wrap: anywhere;
}

.centered-panel {
	max-width: 640px;
	margin-inline: auto;
	text-align: center;
}

.centered-panel .icon--mail,
.centered-panel .icon--shield,
.centered-panel .icon--lock {
	width: 48px;
	height: 48px;
	margin: 0 auto 16px;
	color: var(--c-accent);
}

.test-box {
	margin-top: 24px;
	padding: 20px;
	border: 1px dashed rgba(255, 208, 0, 0.5);
	border-radius: var(--radius);
	text-align: left;
}

.test-box .btn-row {
	margin-top: 16px;
}

/* Partners directory
   ========================================================================== */

.partner-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 190px), 1fr));
	gap: 24px 16px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.partner-card .logo-tile {
	width: 100%;
	flex: none;
}

.partner-card__name {
	margin: 12px 0 2px;
	font-size: 1rem;
	line-height: 1.35;
}

.partner-card__name a:hover {
	color: var(--c-accent);
}

.partner-card__meta {
	margin: 0;
	color: var(--c-muted);
	font-size: 0.8125rem;
}

.case-list a:hover strong {
	color: var(--c-accent);
}

/* Detail extras */

.detail-hero__media--placeholder {
	display: grid;
	place-items: center;
	aspect-ratio: 4 / 3;
	color: var(--c-accent);
}

.detail-hero__media--placeholder .icon {
	width: 64px;
	height: 64px;
	opacity: 0.7;
}

.profile-hero {
	display: grid;
	grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
	align-items: center;
	gap: clamp(32px, 5vw, 80px);
	padding-bottom: clamp(40px, 5vw, 72px);
}

.profile-hero__photo {
	overflow: hidden;
	max-width: 440px;
	aspect-ratio: 4 / 5;
	border-radius: var(--radius-lg);
	background: var(--c-surface);
}

.profile-hero__photo img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: top center;
}

.profile-hero .stat-tiles {
	margin-top: 24px;
}

.research-abstract {
	padding: clamp(24px, 3vw, 36px);
	border-left: 4px solid var(--c-accent);
	border-radius: var(--radius);
	background: var(--c-surface);
}

.research-abstract p:last-child {
	margin: 0;
	color: #fff;
	font-size: var(--fs-lead);
}

.product-price {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 6px 14px;
	margin: 1rem 0 0;
	color: #fff;
	font-size: clamp(1.75rem, 1.4rem + 1vw, 2.5rem);
	font-weight: 600;
}

.product-price span {
	color: var(--c-muted);
	font-size: 0.9375rem;
	font-weight: 500;
}

.product-assurance {
	max-width: 520px;
	margin-top: 24px;
}

.product-hero .test-notice {
	margin-top: 20px;
}

.purchase-card .book-cover {
	max-width: 220px;
	justify-self: start;
}

/* Course access (locked) */

.lock-panel {
	max-width: 720px;
	padding: clamp(28px, 4vw, 48px);
	border: 1px solid var(--c-border);
	border-radius: var(--radius-lg);
	background: var(--c-surface);
}

.lock-panel .icon--lock {
	width: 36px;
	height: 36px;
	margin-bottom: 12px;
	color: var(--c-accent);
}

/* Responsive
   ========================================================================== */

@media (max-width: 1279px) {
	.card-grid--4 {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}

	.steps {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 1023px) {
	.card-grid,
	.card-grid--4 {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.detail-hero,
	.store-feature,
	.store-layout,
	.profile-hero {
		grid-template-columns: minmax(0, 1fr);
	}

	.purchase-card {
		position: static;
	}

	.store-feature .book-cover {
		max-width: 240px;
		justify-self: start;
	}
}

@media (max-width: 767px) {
	.card-grid,
	.card-grid--4,
	.steps {
		grid-template-columns: minmax(0, 1fr);
	}

	.card-grid--people {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.photo-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.purchase-row {
		grid-template-columns: 72px minmax(0, 1fr);
	}

	.purchase-row .line-item__thumb {
		width: 72px;
	}

	.purchase-row > :last-child {
		grid-column: 1 / -1;
	}

	.line-item {
		grid-template-columns: 52px minmax(0, 1fr);
	}

	.line-item__end {
		grid-column: 2;
		justify-items: start;
	}
}

.line-item__thumb--icon {
	display: grid;
	place-items: center;
	background: var(--c-bg-alt);
	color: var(--c-accent);
}

/* About page
   ========================================================================== */

.about-hero {
	padding-block: clamp(40px, 6vw, 88px) clamp(56px, 7vw, 112px);
}

.about-hero__inner {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
	align-items: center;
	gap: clamp(32px, 5vw, 96px);
	margin-top: clamp(24px, 3vw, 40px);
}

.about-hero__title {
	max-width: 12ch;
	margin: 0.4em 0 0.35em;
	font-size: var(--fs-display);
	line-height: 1;
}

.about-hero__lead {
	max-width: 50ch;
	font-size: var(--fs-lead);
}

.about-hero__media {
	position: relative;
	margin: 0;
}

.about-hero__media img {
	display: block;
	width: 100%;
	aspect-ratio: 4 / 3;
	border-radius: var(--radius-lg);
	object-fit: cover;
}

.about-hero__media figcaption {
	position: absolute;
	right: 16px;
	bottom: 16px;
	left: 16px;
	display: flex;
	align-items: center;
	gap: 12px;
	padding: 14px 18px;
	border-radius: var(--radius);
	background: rgba(30, 30, 30, 0.88);
	color: #fff;
	font-size: 0.875rem;
	font-weight: 600;
	line-height: 1.35;
}

.about-hero__media figcaption .icon {
	flex: none;
	width: 22px;
	height: 22px;
	color: var(--c-accent);
}

.about-stats {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 1px;
	margin: clamp(48px, 6vw, 88px) 0 0;
	padding: 0;
	overflow: hidden;
	border: 1px solid var(--c-border);
	border-radius: var(--radius);
	background: var(--c-border);
	list-style: none;
}

.about-stats li {
	padding: clamp(24px, 3vw, 40px);
	background: var(--c-bg-alt);
}

.about-stats strong {
	display: block;
	margin-bottom: 10px;
	color: var(--c-accent);
	font-size: clamp(2.5rem, 1.8rem + 2.6vw, 4rem);
	font-weight: 600;
	line-height: 1;
}

.about-stats a,
.about-stats span {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	color: #fff;
	font-weight: 600;
}

.about-stats a .icon {
	width: 16px;
	height: 16px;
	color: var(--c-accent);
	transition: transform 0.2s;
}

.about-stats a:hover .icon {
	transform: translateX(3px);
}

.about-mission {
	display: grid;
	grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
	align-items: start;
	gap: clamp(32px, 6vw, 112px);
}

.about-mission__text > p {
	max-width: 46ch;
	color: #fff;
	font-size: clamp(1.25rem, 1.05rem + 0.8vw, 1.75rem);
	line-height: 1.45;
}

.about-vision {
	margin: clamp(32px, 4vw, 56px) 0 0;
	padding: clamp(24px, 3vw, 40px);
	border-left: 4px solid var(--c-primary);
	border-radius: 0 var(--radius) var(--radius) 0;
	background: var(--c-surface);
}

.about-vision p:last-child {
	margin: 0;
	color: #fff;
	font-size: var(--fs-lead);
}

.pillar-grid {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 16px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.pillar {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 12px;
	padding: clamp(24px, 2.5vw, 32px);
	border-radius: var(--radius);
	background: var(--c-surface);
}

.pillar > .icon {
	width: 32px;
	height: 32px;
	color: var(--c-accent);
}

.pillar h3 {
	margin: 8px 0 0;
	font-size: 1.25rem;
	line-height: 1.3;
}

.pillar p {
	flex: 1;
	margin: 0;
	font-size: 0.9375rem;
}

.timeline {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 48px 32px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.timeline__item {
	position: relative;
	padding-top: 28px;
	border-top: 2px solid var(--c-border);
}

.timeline__item::before {
	content: "";
	position: absolute;
	top: -7px;
	left: 0;
	width: 12px;
	height: 12px;
	border-radius: 50%;
	background: var(--c-primary);
	box-shadow: 0 0 0 4px var(--c-bg-deep);
}

.timeline__date {
	display: block;
	margin-bottom: 10px;
	color: var(--c-accent);
	font-size: 0.8125rem;
	font-weight: 700;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.timeline__item h3 {
	margin-bottom: 6px;
	font-size: 1.25rem;
	line-height: 1.3;
}

.timeline__item h3 a {
	color: #fff;
}

.timeline__item h3 a:hover {
	color: var(--c-accent);
}

.timeline__item h3 .tag {
	margin-left: 8px;
	vertical-align: middle;
}

.timeline__item p {
	margin: 0;
	color: var(--c-muted);
	font-size: 0.9375rem;
}

/* Contact page
   ========================================================================== */

.contact-methods {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
	gap: 16px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.contact-method {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 6px;
	padding: clamp(24px, 2.5vw, 32px);
	border: 1px solid transparent;
	border-radius: var(--radius);
	background: var(--c-surface);
	transition: border-color 0.2s;
}

.contact-method:hover {
	border-color: rgba(255, 208, 0, 0.35);
}

.contact-method > .icon {
	width: 28px;
	height: 28px;
	margin-bottom: 12px;
	color: var(--c-accent);
}

.contact-method h2 {
	margin: 0;
	color: var(--c-muted);
	font-size: 0.8125rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.contact-method__value {
	color: #fff;
	font-size: clamp(1.125rem, 1rem + 0.45vw, 1.375rem);
	font-style: normal;
	font-weight: 600;
	line-height: 1.4;
	overflow-wrap: anywhere;
}

a.contact-method__value:hover {
	color: var(--c-accent);
}

.contact-method__value--address {
	font-size: 1.0625rem;
}

.contact-method__note {
	margin: 4px 0 0;
	color: var(--c-muted);
	font-size: 0.875rem;
}

.contact-marker {
	margin: 12px 0 0;
}

.contact-layout {
	margin-top: clamp(32px, 4vw, 56px);
}

.contact-form__intro {
	margin: 0;
}

.contact-form .eyebrow {
	margin-bottom: 0.5rem;
}

.topic-list {
	margin: 12px 0 0;
	padding: 0;
	list-style: none;
}

.topic-list a {
	display: grid;
	grid-template-columns: minmax(0, 1fr) auto;
	align-items: center;
	gap: 2px 12px;
	padding: 14px 0;
	border-bottom: 1px solid var(--c-border);
	color: #fff;
}

.topic-list li:last-child a {
	border-bottom: 0;
}

.topic-list strong {
	font-weight: 600;
}

.topic-list small {
	grid-column: 1;
	color: var(--c-muted);
	font-size: 0.8125rem;
	line-height: 1.4;
}

.topic-list .icon {
	grid-row: 1 / span 2;
	grid-column: 2;
	width: 18px;
	height: 18px;
	color: var(--c-accent);
	transition: transform 0.2s;
}

.topic-list a:hover .icon {
	transform: translateX(3px);
}

.topic-list a:hover strong,
.topic-list a[aria-current] strong {
	color: var(--c-accent);
}

.contact-card .pill-list a {
	color: #fff;
}

.faq-layout {
	display: grid;
	grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
	align-items: start;
	gap: clamp(32px, 6vw, 112px);
}

.faq {
	display: grid;
	gap: 12px;
}

.faq details {
	border-radius: var(--radius);
	background: var(--c-surface);
}

.faq summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	padding: 20px 24px;
	color: #fff;
	font-size: 1.0625rem;
	font-weight: 600;
	line-height: 1.4;
	cursor: pointer;
	list-style: none;
}

.faq summary::-webkit-details-marker {
	display: none;
}

.faq summary:focus-visible {
	border-radius: var(--radius);
	outline: 2px solid var(--c-accent);
	outline-offset: 2px;
}

.faq summary .icon {
	flex: none;
	width: 20px;
	height: 20px;
	color: var(--c-accent);
	transition: transform 0.2s;
}

.faq details[open] summary .icon {
	transform: rotate(180deg);
}

.faq__answer {
	padding: 0 24px 22px;
}

.faq__answer p {
	max-width: 70ch;
	margin: 0;
}

@media (max-width: 1279px) {
	.pillar-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 1023px) {
	.about-hero__inner,
	.about-mission,
	.faq-layout {
		grid-template-columns: minmax(0, 1fr);
	}

	.about-stats,
	.timeline {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 767px) {
	.pillar-grid,
	.timeline {
		grid-template-columns: minmax(0, 1fr);
	}

	.timeline {
		gap: 0;
	}

	.timeline__item {
		padding: 0 0 32px 28px;
		border-top: 0;
		border-left: 2px solid var(--c-border);
	}

	.timeline__item::before {
		top: 2px;
		left: -7px;
	}

	.about-stats li {
		padding: 20px;
	}
}

/* Branded cover panel (items without a photo)
   ========================================================================== */

.cover-visual {
	position: relative;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	gap: 16px;
	width: 100%;
	height: 100%;
	padding: clamp(24px, 3vw, 44px);
	overflow: hidden;
	container-type: inline-size;
	background:
		radial-gradient(110% 80% at 100% 0%, rgba(233, 34, 75, 0.5), transparent 55%),
		radial-gradient(90% 70% at 0% 100%, rgba(255, 208, 0, 0.16), transparent 60%),
		linear-gradient(160deg, #2c2c2c, #1a1a1a);
	color: #fff;
	text-align: left;
}

.cover-visual::before {
	content: "";
	position: absolute;
	inset: 0;
	background-image:
		linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
		linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
	background-size: 32px 32px;
	-webkit-mask-image: linear-gradient(180deg, transparent, #000 70%);
	mask-image: linear-gradient(180deg, transparent, #000 70%);
	pointer-events: none;
}

.cover-visual__top {
	position: relative;
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 0.8125rem;
	font-weight: 700;
}

.cover-visual__logo {
	padding: 4px 7px;
	border-radius: 6px;
	background: var(--c-primary);
	line-height: 1;
}

.cover-visual__icon {
	position: absolute;
	top: clamp(20px, 3vw, 40px);
	right: clamp(20px, 3vw, 40px);
	color: var(--c-accent);
}

.cover-visual__icon .icon {
	width: 32px;
	height: 32px;
}

.cover-visual__body {
	position: relative;
	display: grid;
	gap: 10px;
}

.cover-visual__eyebrow {
	color: var(--c-accent);
	font-size: 0.75rem;
	font-weight: 700;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}

.cover-visual__title {
	max-width: 18ch;
	font-size: clamp(1.5rem, 8cqi, 2.75rem);
	font-weight: 700;
	line-height: 1.08;
}

.cover-visual__meta {
	color: rgba(255, 255, 255, 0.72);
	font-size: 0.875rem;
}

/* Card size: the card body already shows eyebrow + title, so the cover is a
   centred icon with the brand mark (top-left stays free for card badges). */
.cover-visual--card {
	justify-content: flex-end;
	padding: 18px 20px;
}

.cover-visual--card .cover-visual__body {
	display: none;
}

.cover-visual--card .cover-visual__top {
	font-size: 0.6875rem;
	opacity: 0.85;
}

.cover-visual--card .cover-visual__icon {
	top: 50%;
	right: auto;
	left: 50%;
	display: grid;
	place-items: center;
	width: 72px;
	height: 72px;
	border: 1px solid rgba(255, 208, 0, 0.35);
	border-radius: 50%;
	background: rgba(0, 0, 0, 0.25);
	transform: translate(-50%, -50%);
}

.cover-visual--card .cover-visual__icon .icon {
	width: 30px;
	height: 30px;
}

.detail-hero__media--placeholder:has(.cover-visual) {
	display: block;
}

.c-card__media > .cover-visual {
	position: absolute;
	inset: 0;
}

/* Book Store – featured e-books (spotlight cards)
   ========================================================================== */

.spotlight-grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 24px;
}

.spotlight-grid--single {
	grid-template-columns: minmax(0, 1fr);
}

.spotlight {
	position: relative;
	display: grid;
	grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
	align-items: center;
	gap: clamp(24px, 3vw, 44px);
	padding: clamp(24px, 3vw, 44px);
	overflow: hidden;
	border: 1px solid var(--c-border);
	border-radius: var(--radius-lg);
	background:
		radial-gradient(120% 90% at 0% 100%, rgba(233, 34, 75, 0.22), transparent 55%),
		radial-gradient(90% 70% at 100% 0%, rgba(255, 208, 0, 0.1), transparent 60%),
		var(--c-surface);
	isolation: isolate;
}

.spotlight::after {
	content: "B2B";
	position: absolute;
	right: -0.04em;
	bottom: -0.26em;
	z-index: -1;
	color: rgba(255, 255, 255, 0.035);
	font-size: clamp(8rem, 12vw, 14rem);
	font-weight: 700;
	line-height: 1;
	pointer-events: none;
}

.spotlight__cover {
	display: block;
	justify-self: center;
	width: 100%;
	max-width: 280px;
	perspective: 1200px;
}

.spotlight__cover img {
	display: block;
	width: 100%;
	height: auto;
	border-radius: 12px;
	box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
	transform: rotateY(10deg);
	transition: transform 0.4s ease;
}

.spotlight:hover .spotlight__cover img {
	transform: rotateY(0deg) translateY(-4px);
}

.spotlight__tags {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px 12px;
	margin: 0 0 14px;
	color: var(--c-accent);
	font-size: 0.75rem;
	font-weight: 700;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.spotlight__badge {
	padding: 5px 10px;
	border-radius: var(--radius-pill);
	background: var(--c-accent);
	color: var(--c-on-accent);
	letter-spacing: 0.06em;
}

.spotlight__title {
	margin: 4px 0 10px;
	font-size: clamp(1.75rem, 1.3rem + 1.4vw, 2.5rem);
	line-height: 1.1;
}

.spotlight__title a {
	color: #fff;
}

.spotlight__title a:hover {
	color: var(--c-accent);
}

.spotlight__excerpt {
	display: -webkit-box;
	margin: 12px 0 18px;
	overflow: hidden;
	font-size: 0.9375rem;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
}

.spotlight__facts {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin: 0 0 24px;
	padding: 0;
	list-style: none;
}

.spotlight__facts li {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 6px 12px;
	border: 1px solid rgba(255, 255, 255, 0.14);
	border-radius: var(--radius-pill);
	color: #fff;
	font-size: 0.8125rem;
}

.spotlight__facts .icon {
	width: 16px;
	height: 16px;
	color: var(--c-accent);
}

.spotlight__buy {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	padding-top: 20px;
	border-top: 1px solid var(--c-border);
}

.spotlight__price {
	margin: 0;
	color: #fff;
	font-size: 1.75rem;
	font-weight: 700;
	line-height: 1;
}

.spotlight__price span {
	display: block;
	margin-top: 6px;
	color: var(--c-muted);
	font-size: 0.8125rem;
	font-weight: 500;
}

.spotlight__buy .btn-row {
	margin: 0;
}

/* Edition page – details panel
   ========================================================================== */

.edition-aside__buy {
	margin-top: 24px;
	padding-top: 24px;
	border-top: 1px solid var(--c-border);
}

.edition-aside__buy .eyebrow {
	margin-bottom: 6px;
}

.edition-aside__price {
	margin: 0 0 16px;
	color: #fff;
	font-size: 1.75rem;
	font-weight: 700;
	line-height: 1;
}

.edition-aside__price span {
	margin-left: 8px;
	color: var(--c-muted);
	font-size: 0.8125rem;
	font-weight: 500;
}

.edition-aside__buy form,
.edition-aside__buy .btn {
	width: 100%;
}

.edition-aside__buy .btn {
	justify-content: center;
}

.edition-aside__link {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	margin-top: 14px;
	color: var(--c-accent);
	font-size: 0.875rem;
	font-weight: 600;
}

.edition-aside__link .icon {
	width: 16px;
	height: 16px;
}

/* Author without a photo
   ========================================================================== */

.profile-hero--compact {
	grid-template-columns: auto minmax(0, 1fr);
}

.profile-avatar {
	display: grid;
	place-items: center;
	width: clamp(104px, 12vw, 168px);
	aspect-ratio: 1;
	border: 1px solid var(--c-border);
	border-radius: 50%;
	background:
		radial-gradient(circle at 30% 20%, rgba(255, 208, 0, 0.22), transparent 60%),
		var(--c-surface);
	color: var(--c-accent);
	font-size: clamp(2rem, 1.5rem + 2vw, 3.25rem);
	font-weight: 700;
}

/* Legal pages (Privacy, Terms, Refund)
   ========================================================================== */

.legal-updated {
	margin: -12px 0 0;
	color: var(--c-muted);
	font-size: 0.875rem;
}

.legal-layout {
	display: grid;
	grid-template-columns: 260px minmax(0, 1fr);
	align-items: start;
	gap: clamp(32px, 5vw, 96px);
	margin-top: clamp(24px, 3vw, 40px);
}

.legal-toc {
	position: sticky;
	top: calc(var(--header-h) + 24px);
	padding: 24px;
	border-radius: var(--radius);
	background: var(--c-surface);
}

.legal-toc ol {
	display: grid;
	gap: 2px;
	margin: 10px 0 0;
	padding: 0;
	list-style: none;
}

.legal-toc a {
	display: block;
	padding: 6px 0;
	color: var(--c-text);
	font-size: 0.9375rem;
	line-height: 1.4;
}

.legal-toc a:hover {
	color: var(--c-accent);
}

.legal-main {
	max-width: 820px;
}

.legal-prose h2 {
	margin: 2.25rem 0 0.6rem;
	font-size: clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem);
	scroll-margin-top: calc(var(--header-h) + 24px);
}

.legal-prose h2:first-child {
	margin-top: 0;
}

.legal-prose h3 {
	margin: 1.4rem 0 0.4rem;
	font-size: 1.0625rem;
}

.legal-prose h2 + *,
.legal-prose h3 + * {
	margin-top: 0;
}

.legal-prose p,
.legal-prose li {
	font-size: 1rem;
	line-height: 1.7;
}

.legal-prose p {
	margin: 0 0 0.85rem;
}

.legal-prose ul {
	margin: 0 0 1rem;
	padding-left: 1.2em;
}

.legal-prose li + li {
	margin-top: 0.35rem;
}

.legal-help {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	margin-top: 2.5rem;
	padding: 24px 28px;
	border-radius: var(--radius);
	background: var(--c-surface);
}

.legal-help h2 {
	margin: 0 0 4px;
	font-size: 1.125rem;
}

.legal-help p {
	margin: 0;
	font-size: 0.9375rem;
}

@media (max-width: 1279px) {
	.spotlight-grid {
		grid-template-columns: minmax(0, 1fr);
	}
}

@media (max-width: 1023px) {
	.legal-layout {
		grid-template-columns: minmax(0, 1fr);
	}

	.legal-toc {
		position: static;
	}
}

@media (max-width: 767px) {
	.spotlight {
		grid-template-columns: minmax(0, 1fr);
	}

	.spotlight__cover {
		max-width: 220px;
	}

	.spotlight__cover img {
		transform: none;
	}

	.profile-hero--compact {
		grid-template-columns: minmax(0, 1fr);
	}
}

/* Home – media highlights strip
   ========================================================================== */

.highlight-carousel {
	position: relative;
}

.highlight-strip {
	overflow-x: auto;
	border-radius: var(--radius);
	scroll-snap-type: x mandatory;
	scrollbar-width: none;
	overscroll-behavior-x: contain;
}

.highlight-strip::-webkit-scrollbar {
	display: none;
}

.highlight-strip:focus-visible {
	outline: 2px solid var(--c-accent);
	outline-offset: 3px;
}

.highlight-strip__list {
	display: flex;
	gap: 16px;
	margin: 0;
	padding: 0;
	list-style: none;
}

/* Three photos per view within the content width; two on tablets; a peek on phones. */
.highlight-strip__list li {
	flex: 0 0 calc((100% - 32px) / 3);
	scroll-snap-align: start;
}

@media (max-width: 1023px) {
	.highlight-strip__list li {
		flex-basis: calc((100% - 16px) / 2);
	}
}

@media (max-width: 639px) {
	.highlight-strip__list li {
		flex-basis: 80%;
	}
}

.carousel-arrow {
	position: absolute;
	top: 50%;
	z-index: 2;
	display: grid;
	place-items: center;
	width: 48px;
	height: 48px;
	border: 1px solid rgba(255, 255, 255, 0.16);
	border-radius: 50%;
	background: rgba(30, 30, 30, 0.85);
	color: #fff;
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
	cursor: pointer;
	transform: translateY(-50%);
	transition: background-color 0.2s, border-color 0.2s;
}

.carousel-arrow:hover,
.carousel-arrow:focus-visible {
	border-color: var(--c-primary);
	background: var(--c-primary);
}

.carousel-arrow:focus-visible {
	outline: 2px solid var(--c-accent);
	outline-offset: 2px;
}

.carousel-arrow .icon {
	width: 22px;
	height: 22px;
}

.carousel-arrow--prev {
	left: 12px;
}

.carousel-arrow--next {
	right: 12px;
}

.carousel-head-actions {
	display: flex;
	align-items: center;
	gap: 20px;
}

.carousel-toggle {
	display: grid;
	place-items: center;
	width: 40px;
	height: 40px;
	border: 1px solid rgba(255, 255, 255, 0.2);
	border-radius: 50%;
	background: transparent;
	color: #fff;
	cursor: pointer;
}

.carousel-toggle:hover {
	border-color: var(--c-accent);
	color: var(--c-accent);
}

.carousel-toggle .icon {
	width: 16px;
	height: 16px;
}

.carousel-toggle__play,
.carousel-toggle[aria-pressed="true"] .carousel-toggle__pause {
	display: none;
}

.carousel-toggle[aria-pressed="true"] .carousel-toggle__play {
	display: inline;
}

@media (max-width: 639px) {
	.carousel-arrow {
		width: 40px;
		height: 40px;
	}

	.carousel-arrow--prev {
		left: 8px;
	}

	.carousel-arrow--next {
		right: 8px;
	}
}

.highlight-strip__list img {
	display: block;
	width: 100%;
	aspect-ratio: 4 / 3;
	border-radius: var(--radius);
	background: var(--c-surface);
	object-fit: cover;
}

/* Launch – guests with portraits
   ========================================================================== */

.guest-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 180px), 1fr));
	gap: 16px;
	margin: 16px 0 0;
	padding: 0;
	list-style: none;
}

.guest {
	padding: 20px;
	border-radius: var(--radius);
	background: var(--c-surface);
	text-align: center;
}

.guest__photo {
	width: 96px;
	height: 96px;
	margin: 0 auto 14px;
	overflow: hidden;
	border-radius: 50%;
	background: var(--c-bg-alt);
}

.guest__photo img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: top center;
}

.guest__name {
	margin: 0 0 4px;
	color: #fff;
	font-size: 0.9375rem;
	font-weight: 700;
	line-height: 1.35;
}

.guest__role {
	margin: 0;
	color: var(--c-muted);
	font-size: 0.8125rem;
	line-height: 1.45;
}

/* Authors – partnership note, achievements
   ========================================================================== */

.partnership-note {
	display: flex;
	align-items: flex-start;
	gap: 20px;
	margin-top: 24px;
	padding: clamp(24px, 3vw, 36px);
	border-left: 4px solid var(--c-accent);
	border-radius: 0 var(--radius) var(--radius) 0;
	background: var(--c-surface);
}

.partnership-note > .icon {
	flex: none;
	width: 32px;
	height: 32px;
	color: var(--c-accent);
}

.partnership-note h3 {
	margin: 0 0 6px;
	font-size: 1.25rem;
}

.partnership-note p {
	max-width: 70ch;
	margin: 0;
	font-size: var(--fs-lead);
}

.pill-list--lg li {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 10px 16px;
	font-size: 0.9375rem;
}

.pill-list--lg .icon {
	width: 18px;
	height: 18px;
	color: var(--c-accent);
}

/* Books – region tabs (filters)
   ========================================================================== */

.book-tabs {
	position: sticky;
	top: var(--header-h);
	z-index: 20;
	margin: 0 calc(-1 * var(--gutter)) clamp(24px, 3vw, 36px);
	padding: 12px var(--gutter);
	border-bottom: 1px solid var(--c-border);
	background: rgba(38, 38, 38, 0.94);
	-webkit-backdrop-filter: blur(8px);
	backdrop-filter: blur(8px);
}

.chip-nav--tabs {
	flex-wrap: nowrap;
	margin: 0;
	overflow-x: auto;
	scrollbar-width: none;
}

.chip-nav--tabs::-webkit-scrollbar {
	display: none;
}

/* Smaller screens: the tab row scrolls sideways – fade the edge as a hint. */
@media (max-width: 1279px) {
	.chip-nav--tabs {
		padding-right: 40px;
		-webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 48px), transparent);
		mask-image: linear-gradient(90deg, #000 calc(100% - 48px), transparent);
	}
}

.chip-nav--tabs li {
	flex: none;
}

.chip-nav--tabs a {
	gap: 8px;
	white-space: nowrap;
}

.chip-nav--tabs a[aria-current] {
	border-color: var(--c-accent);
	background: var(--c-accent);
	color: var(--c-on-accent);
	font-weight: 700;
}

.chip-count {
	display: inline-grid;
	place-items: center;
	min-width: 22px;
	height: 22px;
	padding: 0 6px;
	border-radius: var(--radius-pill);
	background: rgba(255, 255, 255, 0.1);
	font-size: 0.75rem;
	font-weight: 600;
}

.chip-nav--tabs a[aria-current] .chip-count {
	background: rgba(0, 0, 0, 0.15);
}

.books-grid > li[hidden] {
	display: none;
}

/* Checkout
   ========================================================================== */

.field-optional {
	font-weight: 400;
	opacity: 0.65;
}

.payment-method {
	display: flex;
	align-items: center;
	gap: 12px;
	margin: 0;
}

.payment-method__badge {
	flex: none;
	padding: 6px 12px;
	border-radius: 999px;
	background: #ffc439; /* PayPal button yellow */
	color: #111827;
	font-weight: 700;
	font-size: 0.875rem;
}

/* Course lessons (/courses/{slug}/learn/)
   ========================================================================== */

.course-modules {
	display: grid;
	gap: 24px;
}

.course-module h2 {
	margin-bottom: 8px;
}

.lesson-list {
	display: grid;
	gap: 10px;
	margin: 20px 0 0;
	padding: 0;
	list-style: none;
}

.lesson {
	border: 1px solid rgba(255, 255, 255, 0.08);
	border-radius: 12px;
	background: var(--c-bg-alt);
}

.lesson summary {
	display: grid;
	grid-template-columns: auto minmax(0, 1fr) auto;
	align-items: center;
	gap: 14px;
	padding: 14px 18px;
	cursor: pointer;
	list-style: none;
}

.lesson summary::-webkit-details-marker {
	display: none;
}

.lesson summary:focus-visible {
	outline: 2px solid var(--c-accent);
	outline-offset: 2px;
}

.lesson[open] summary {
	border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.lesson__num {
	color: var(--c-accent);
	font-weight: 700;
	font-variant-numeric: tabular-nums;
}

.lesson__title {
	color: #fff;
	font-weight: 700;
}

.lesson__time {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 0.875rem;
	opacity: 0.75;
	white-space: nowrap;
}

.lesson__time .icon {
	width: 16px;
	height: 16px;
}

.lesson__body {
	padding: 16px 18px 18px;
}

.lesson__body p {
	margin: 0 0 12px;
}

.lesson__body .lesson-state {
	display: flex;
	align-items: center;
	gap: 8px;
	margin: 0;
	font-size: 0.875rem;
	opacity: 0.8;
}

.lesson__video iframe {
	width: 100%;
	height: auto;
	aspect-ratio: 16 / 9;
	border: 0;
	border-radius: 10px;
}

.course-nav {
	position: sticky;
	top: 110px;
	align-self: start;
}

/* Invoice / receipt (order page)
   ========================================================================== */

.invoice {
	margin-top: 32px;
}

.invoice__head {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: flex-start;
	gap: 16px;
	margin-bottom: 24px;
}

.invoice__head h2 {
	margin: 0;
}

.invoice__parties {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 24px;
	margin-bottom: 24px;
}

.invoice__parties h3 {
	margin: 0 0 6px;
	color: var(--c-accent);
	font-size: 0.8125rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.invoice__parties p {
	margin: 0;
	line-height: 1.6;
	overflow-wrap: anywhere;
}

.table-scroll {
	overflow-x: auto;
}

.invoice__lines {
	width: 100%;
	min-width: 480px;
	border-collapse: collapse;
	font: inherit;
	letter-spacing: normal;
	word-spacing: normal;
}

.invoice__lines th,
.invoice__lines td {
	padding: 12px 0 12px 16px;
	border-bottom: 1px solid rgba(255, 255, 255, 0.1);
	text-align: right;
	vertical-align: top;
}

.invoice__lines th:first-child,
.invoice__lines td:first-child {
	padding-left: 0;
	text-align: left;
}

.invoice__lines thead th {
	font-size: 0.8125rem;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	opacity: 0.7;
}

.invoice__lines tfoot th {
	font-weight: 400;
	text-align: right;
}

.invoice__lines tfoot tr:last-child th,
.invoice__lines tfoot tr:last-child td {
	border-bottom: 0;
	color: #fff;
	font-weight: 700;
}

.invoice__lines small {
	opacity: 0.7;
}

@media (max-width: 767px) {
	.invoice__parties {
		grid-template-columns: minmax(0, 1fr);
	}

	.invoice__lines {
		min-width: 0;
		font-size: 0.875rem;
	}

	.invoice__lines th,
	.invoice__lines td {
		padding-left: 8px;
	}

	.course-nav {
		position: static;
	}
}

@media print {
	body * {
		visibility: hidden;
	}

	.invoice,
	.invoice * {
		visibility: visible;
	}

	.invoice {
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		margin: 0;
		border: 0;
		background: #fff;
		color: #111;
	}

	.invoice h2,
	.invoice h3,
	.invoice p,
	.invoice__lines th,
	.invoice__lines td {
		color: #111 !important;
	}

	.invoice__lines th,
	.invoice__lines td {
		border-color: #ddd;
	}

	.invoice__print {
		display: none !important;
	}
}