/**
 * Components — the reusable UI vocabulary of the theme.
 */

/* ================================================================ Buttons */

.button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-2);
	font-family: var(--font-body);
	font-weight: var(--fw-semibold);
	font-size: var(--fs-button);
	padding: 0.85em 1.6em;
	border-radius: var(--radius-pill);
	border: 1px solid transparent;
	cursor: pointer;
	text-decoration: none;
	transition: transform var(--duration-fast) var(--ease-out), background-color var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out);
	white-space: nowrap;
}
.button:hover { transform: translateY(-1px); }
.button:active { transform: translateY(0); }
.button:disabled, .button[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; transform: none; }

.button--primary {
	background: var(--color-primary);
	color: var(--color-white);
	box-shadow: var(--shadow-glow-crimson);
}
.button--primary:hover { background: var(--color-primary-dark); color: var(--color-white); }

.button--dark {
	background: var(--color-black);
	color: var(--color-white);
}
.button--dark:hover { background: var(--color-charcoal); color: var(--color-white); }

.button--light {
	background: var(--color-white);
	color: var(--color-black);
}
.button--light:hover { background: var(--color-offwhite); color: var(--color-black); }

.button--ghost {
	background: transparent;
	color: var(--section-text, var(--color-text));
	border-color: var(--section-border, var(--color-border));
}
.button--ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }

.button--neon {
	background: var(--color-neon-500);
	color: var(--color-black);
}
.button--neon:hover { background: var(--color-neon-400); color: var(--color-black); }

.button--sm { padding: 0.6em 1.2em; font-size: var(--fs-small); }
.button--block { width: 100%; }
.button--loading { position: relative; color: transparent !important; }
.button--loading::after {
	content: "";
	position: absolute;
	width: 1em; height: 1em;
	border: 2px solid currentColor;
	border-right-color: transparent;
	border-radius: 50%;
	color: var(--color-white);
	animation: momentum-spin 0.7s linear infinite;
}

.icon-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 40px; height: 40px;
	border-radius: 50%;
	border: none;
	background: none;
	color: var(--color-text);
	cursor: pointer;
	transition: background-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.icon-button:hover { background: var(--color-offwhite-2); color: var(--color-primary); }

.link-arrow {
	display: inline-flex;
	align-items: center;
	gap: 0.4em;
	font-weight: var(--fw-semibold);
	text-decoration: none;
}
.link-arrow::after { content: "→"; transition: transform var(--duration-fast) var(--ease-out); }
.link-arrow:hover::after { transform: translateX(3px); }

/* ================================================================ Badges */

.badge {
	display: inline-flex;
	align-items: center;
	font-size: var(--fs-label);
	letter-spacing: var(--ls-label);
	text-transform: uppercase;
	font-weight: var(--fw-semibold);
	padding: 0.35em 0.85em;
	border-radius: var(--radius-pill);
	background: var(--color-offwhite-2);
	color: var(--color-text);
}
.badge--crimson { background: var(--color-crimson-600); color: var(--color-white); }
.badge--neon { background: var(--color-neon-500); color: var(--color-black); }
.badge--outline { background: transparent; border: 1px solid var(--section-border, var(--color-border)); color: var(--section-text, var(--color-text)); }

/* ================================================================ Cards */

.card {
	display: flex;
	flex-direction: column;
	background: var(--color-surface);
	border-radius: var(--radius-lg);
	border: 1px solid var(--color-border);
	overflow: hidden;
	transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
	height: 100%;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }

.card__media { aspect-ratio: 4 / 3; overflow: hidden; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--duration-slow) var(--ease-out); }
.card:hover .card__media img { transform: scale(1.05); }

.card__body { padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); flex: 1; }
.card__eyebrow { font-size: var(--fs-label); letter-spacing: var(--ls-label); text-transform: uppercase; color: var(--color-primary); font-weight: var(--fw-semibold); }
.card__title { font-size: var(--fs-h4); margin: 0; }
.card__title a { text-decoration: none; color: inherit; }
.card__title a::after { content: ""; position: absolute; inset: 0; }
.card { position: relative; }
.card__excerpt { color: var(--color-text-muted); font-size: var(--fs-small); margin: 0; }
.card__footer { margin-top: auto; padding-top: var(--space-3); display: flex; align-items: center; justify-content: space-between; font-size: var(--fs-small); }

.card--dark {
	background: var(--color-charcoal);
	border-color: var(--color-border-dark);
	color: var(--color-offwhite);
}
.card--dark .card__title { color: var(--color-white); }
.card--dark .card__excerpt { color: #b7b6bd; }

/* Service / Industry compact cards */
.service-card, .industry-card {
	padding: var(--space-6);
	border-radius: var(--radius-lg);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	position: relative;
	transition: border-color var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out);
	height: 100%;
}
.service-card:hover, .industry-card:hover { border-color: var(--color-primary); transform: translateY(-3px); }
.service-card__icon {
	width: 48px; height: 48px;
	display: flex; align-items: center; justify-content: center;
	border-radius: var(--radius-md);
	background: var(--color-offwhite-2);
	margin-bottom: var(--space-4);
	color: var(--color-primary);
}

/* Testimonial card */
.testimonial-card {
	background: var(--color-charcoal);
	color: var(--color-offwhite);
	border-radius: var(--radius-lg);
	padding: var(--space-7);
	display: flex;
	flex-direction: column;
	gap: var(--space-5);
	height: 100%;
}
.testimonial-card__quote { font-size: var(--fs-body-lg); font-family: var(--font-display); line-height: 1.4; margin: 0; }
.testimonial-card__author { display: flex; align-items: center; gap: var(--space-3); margin-top: auto; }
.testimonial-card__avatar { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; background: var(--color-charcoal-2); flex-shrink: 0; }
.testimonial-card__name { font-weight: var(--fw-semibold); color: var(--color-white); }
.testimonial-card__role { font-size: var(--fs-small); color: #b7b6bd; }

/* Pricing cards */
.pricing-card {
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	padding: var(--space-7);
	display: flex;
	flex-direction: column;
	gap: var(--space-4);
	height: 100%;
}
.pricing-card--featured {
	background: var(--color-black);
	color: var(--color-white);
	border-color: var(--color-black);
	box-shadow: var(--shadow-lg);
	transform: scale(1.03);
}
.pricing-card--featured .pricing-card__desc { color: #b7b6bd; }
.pricing-card__price { font-family: var(--font-display); font-size: var(--fs-h2); font-weight: var(--fw-bold); }
.pricing-card__price span { font-size: var(--fs-small); font-weight: var(--fw-regular); color: var(--color-text-muted); }
.pricing-card__list { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-2); }
.pricing-card__list li { display: flex; gap: var(--space-2); align-items: flex-start; font-size: var(--fs-small); }
.pricing-card__list li::before { content: "✓"; color: var(--color-accent); font-weight: var(--fw-bold); }

/* ================================================================ Stats */

.stat {
	text-align: center;
}
.stat__value {
	font-family: var(--font-display);
	font-size: clamp(2.5rem, 2rem + 2vw, 4rem);
	font-weight: var(--fw-bold);
	color: var(--section-heading, var(--color-text));
	line-height: 1;
}
.stat__label {
	margin-top: var(--space-2);
	font-size: var(--fs-small);
	color: var(--section-text-muted, var(--color-text-muted));
}

/* ================================================================ Process steps */

.process-step {
	display: grid;
	grid-template-columns: auto 1fr;
	gap: var(--space-5);
	padding-block: var(--space-6);
	border-top: 1px solid var(--section-border, var(--color-border));
}
.process-step:first-of-type { border-top: none; }
.process-step__index {
	font-family: var(--font-display);
	font-size: var(--fs-h2);
	font-weight: var(--fw-bold);
	color: var(--color-primary);
	width: 2.2ch;
}

/* ================================================================ Breadcrumbs */

.breadcrumbs__list { list-style: none; display: flex; flex-wrap: wrap; gap: var(--space-2); padding: 0; margin: 0; font-size: var(--fs-small); color: var(--color-text-muted); }
.breadcrumbs__item { display: flex; align-items: center; gap: var(--space-2); }
.breadcrumbs a { color: var(--color-text-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-primary); }

/* ================================================================ Accordion (FAQ) */

.accordion { border-top: 1px solid var(--section-border, var(--color-border)); }
.accordion-item { border-bottom: 1px solid var(--section-border, var(--color-border)); }
.accordion-item__trigger {
	width: 100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-4);
	text-align: left;
	background: none;
	border: none;
	color: inherit;
	padding: var(--space-5) var(--space-1);
	font-family: var(--font-display);
	font-size: var(--fs-h4);
	font-weight: var(--fw-medium);
	cursor: pointer;
}
.accordion-item__icon { flex-shrink: 0; transition: transform var(--duration-base) var(--ease-out); }
.accordion-item__trigger[aria-expanded="true"] .accordion-item__icon { transform: rotate(45deg); }
.accordion-item__panel {
	overflow: hidden;
	height: 0;
	transition: height var(--duration-base) var(--ease-in-out);
}
.accordion-item__panel-inner { padding: 0 var(--space-1) var(--space-5); color: var(--section-text-muted, var(--color-text-muted)); }

/* ================================================================ Tabs */

.tabs__list { display: flex; gap: var(--space-2); flex-wrap: wrap; border-bottom: 1px solid var(--section-border, var(--color-border)); }
.tabs__tab {
	background: none; border: none; cursor: pointer;
	padding: var(--space-3) var(--space-4);
	font-weight: var(--fw-semibold);
	color: var(--section-text-muted, var(--color-text-muted));
	border-bottom: 2px solid transparent;
	margin-bottom: -1px;
}
.tabs__tab[aria-selected="true"] { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.tabs__panel { padding-block: var(--space-5); }
.tabs__panel[hidden] { display: none; }

/* ================================================================ Forms */

.form-field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
.form-field label { color: var(--section-text, var(--color-text)); }
.input, textarea.input, select.input {
	appearance: none;
	width: 100%;
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	padding: 0.85em 1em;
	font-size: var(--fs-body);
	color: var(--color-text);
	transition: border-color var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out);
}
.input:focus, textarea.input:focus, select.input:focus {
	border-color: var(--color-primary);
	box-shadow: 0 0 0 3px rgba(193, 19, 48, 0.15);
	outline: none;
}
.input--textarea { resize: vertical; min-height: 140px; }
.input.is-invalid { border-color: var(--color-error); }
.form-field__error { color: var(--color-error); font-size: var(--fs-small); }
.form-field__hint { color: var(--color-text-muted); font-size: var(--fs-small); }

/* Honeypot — visually hidden but present in the tab order trap for bots,
   not for real keyboard users: off-screen + unreachable via tabindex. */
.form-honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-status { padding: var(--space-4); border-radius: var(--radius-md); font-size: var(--fs-small); margin-top: var(--space-4); display: none; }
.form-status.is-visible { display: block; }
.form-status--success { background: rgba(28, 138, 82, 0.12); color: var(--color-success); }
.form-status--error { background: rgba(193, 19, 48, 0.1); color: var(--color-error); }

/* ================================================================ Alerts */

.alert { display: flex; gap: var(--space-3); align-items: flex-start; padding: var(--space-4) var(--space-5); border-radius: var(--radius-md); font-size: var(--fs-small); }
.alert--info { background: rgba(58, 109, 240, 0.1); color: #1d3f9e; }
.alert--success { background: rgba(28, 138, 82, 0.12); color: var(--color-success); }
.alert--warning { background: rgba(181, 117, 10, 0.12); color: var(--color-warning); }
.alert--error { background: rgba(193, 19, 48, 0.1); color: var(--color-error); }

/* ================================================================ Tables */

.table-wrap { overflow-x: auto; }
table.styled-table { width: 100%; border-collapse: collapse; font-size: var(--fs-small); }
.styled-table th, .styled-table td { padding: var(--space-3) var(--space-4); text-align: left; border-bottom: 1px solid var(--section-border, var(--color-border)); }
.styled-table thead th { text-transform: uppercase; letter-spacing: var(--ls-label); font-size: var(--fs-label); color: var(--color-text-muted); }

/* ================================================================ Tooltip */

.tooltip { position: relative; }
.tooltip__bubble {
	position: absolute;
	bottom: calc(100% + 8px);
	left: 50%;
	transform: translateX(-50%) translateY(4px);
	background: var(--color-black);
	color: var(--color-white);
	font-size: var(--fs-label);
	padding: var(--space-2) var(--space-3);
	border-radius: var(--radius-sm);
	white-space: nowrap;
	opacity: 0;
	pointer-events: none;
	transition: opacity var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}
.tooltip:hover .tooltip__bubble, .tooltip:focus-within .tooltip__bubble { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ================================================================ Pagination */

.pagination, .nav-links { display: flex; gap: var(--space-2); justify-content: center; margin-top: var(--space-9); flex-wrap: wrap; }
.pagination .page-numbers {
	display: inline-flex; align-items: center; justify-content: center;
	min-width: 40px; height: 40px;
	border-radius: var(--radius-pill);
	border: 1px solid var(--color-border);
	text-decoration: none;
	color: var(--color-text);
	font-size: var(--fs-small);
}
.pagination .page-numbers.current { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-white); }
.pagination .page-numbers:hover:not(.current) { border-color: var(--color-primary); color: var(--color-primary); }

/* ================================================================ Empty state */

.empty-state { text-align: center; padding: var(--space-11) var(--space-4); }
.empty-state__icon { font-size: 2.5rem; margin-bottom: var(--space-4); }

/* ================================================================ Navigation (primary) */

.nav-menu { list-style: none; display: flex; align-items: center; gap: var(--space-1); margin: 0; padding: 0; }
.nav-menu__item { position: relative; }
.nav-menu__link, .nav-menu__trigger {
	display: flex; align-items: center; gap: var(--space-2);
	background: none; border: none; cursor: pointer;
	font-family: var(--font-body);
	font-size: 0.95rem;
	font-weight: var(--fw-medium);
	color: var(--color-text);
	text-decoration: none;
	padding: var(--space-3) var(--space-4);
	border-radius: var(--radius-sm);
}
.nav-menu__link:hover, .nav-menu__trigger:hover, .nav-menu__trigger[aria-expanded="true"] { color: var(--color-primary); }
.nav-menu__chevron { transition: transform var(--duration-fast) var(--ease-out); }
.nav-menu__trigger[aria-expanded="true"] .nav-menu__chevron { transform: rotate(180deg); }

/* Mega menu panel */
.mega-menu {
	position: absolute;
	top: calc(100% + 1px);
	left: 50%;
	transform: translate(-50%, 8px);
	width: min(920px, 92vw);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-lg);
	z-index: var(--z-mega-menu);
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out), visibility var(--duration-base);
}
.nav-menu__item--has-mega.is-open .mega-menu {
	opacity: 1;
	visibility: visible;
	pointer-events: auto;
	transform: translate(-50%, 0);
}
.mega-menu__inner { padding: var(--space-6); }
.mega-menu__columns {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
	gap: var(--space-6);
}
.mega-menu__column-title { font-weight: var(--fw-semibold); color: var(--color-text); text-decoration: none; display: block; margin-bottom: var(--space-1); }
.mega-menu__column-title:hover { color: var(--color-primary); }
.mega-menu__column-desc { font-size: var(--fs-small); color: var(--color-text-muted); margin: 0 0 var(--space-3); }
.mega-menu__column-links { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-2); }
.mega-menu__link { font-size: var(--fs-small); color: var(--color-text-muted); text-decoration: none; }
.mega-menu__link:hover { color: var(--color-primary); }
.mega-menu__footer { margin-top: var(--space-6); padding-top: var(--space-5); border-top: 1px solid var(--color-border); display: flex; justify-content: flex-end; }

@media (max-width: 1024px) {
	.nav-menu, .mega-menu__footer { display: none; }
}

/* ================================================================ Mobile menu */

.mobile-menu-toggle {
	display: none;
	background: none; border: none; cursor: pointer;
	width: 44px; height: 44px;
	align-items: center; justify-content: center;
	color: var(--color-text);
}
@media (max-width: 1024px) {
	.mobile-menu-toggle { display: inline-flex; }
}
.mobile-menu-toggle__bars { width: 22px; height: 14px; position: relative; }
.mobile-menu-toggle__bars span {
	position: absolute; left: 0; width: 100%; height: 2px; background: currentColor;
	transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-base) var(--ease-out);
}
.mobile-menu-toggle__bars span:nth-child(1) { top: 0; }
.mobile-menu-toggle__bars span:nth-child(2) { top: 6px; }
.mobile-menu-toggle__bars span:nth-child(3) { top: 12px; }
.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__bars span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
	position: fixed;
	inset: 0;
	z-index: var(--z-mobile-menu);
	visibility: hidden;
}
.mobile-menu.is-open { visibility: visible; }
.mobile-menu__overlay {
	position: absolute; inset: 0;
	background: rgba(11, 11, 13, 0.6);
	opacity: 0;
	transition: opacity var(--duration-base) var(--ease-out);
}
.mobile-menu.is-open .mobile-menu__overlay { opacity: 1; }
.mobile-menu__panel {
	position: absolute;
	top: 0; right: 0; bottom: 0;
	width: min(360px, 88vw);
	background: var(--color-black);
	color: var(--color-white);
	padding: var(--space-6);
	overflow-y: auto;
	transform: translateX(100%);
	transition: transform var(--duration-slow) var(--ease-out);
	display: flex;
	flex-direction: column;
	gap: var(--space-6);
}
.mobile-menu.is-open .mobile-menu__panel { transform: translateX(0); }
.mobile-menu__header { display: flex; justify-content: flex-end; }
.mobile-menu__close { background: none; border: none; color: var(--color-white); cursor: pointer; width: 40px; height: 40px; }
.mobile-menu__list { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-1); }
.mobile-menu__list .nav-menu__link,
.mobile-menu__list .nav-menu__trigger {
	color: var(--color-white);
	width: 100%;
	justify-content: space-between;
	padding: var(--space-4) var(--space-2);
	font-size: 1.05rem;
	border-bottom: 1px solid var(--color-border-dark);
	border-radius: 0;
}
.mobile-menu__sub {
	list-style: none;
	margin: 0 0 var(--space-3);
	padding: 0 0 0 var(--space-4);
	display: none;
}
.mobile-menu__item.is-open .mobile-menu__sub { display: grid; gap: var(--space-1); }
.mobile-menu__sub a { color: #b7b6bd; text-decoration: none; display: block; padding: var(--space-2); font-size: var(--fs-small); }

/* ================================================================ Search overlay */

.search-overlay {
	position: fixed; inset: 0;
	z-index: var(--z-modal);
	background: rgba(11, 11, 13, 0.7);
	display: flex;
	align-items: flex-start;
	justify-content: center;
	padding-top: 10vh;
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--duration-base) var(--ease-out), visibility var(--duration-base);
}
.search-overlay.is-open { opacity: 1; visibility: visible; }
.search-overlay__panel {
	background: var(--color-surface);
	width: min(640px, 92vw);
	border-radius: var(--radius-lg);
	padding: var(--space-6);
	box-shadow: var(--shadow-lg);
}
.search-overlay__input { width: 100%; font-size: var(--fs-h4); border: none; border-bottom: 2px solid var(--color-border); padding: var(--space-3) 0; background: none; }
.search-overlay__input:focus { outline: none; border-color: var(--color-primary); }
.search-overlay__results { margin-top: var(--space-4); max-height: 50vh; overflow-y: auto; display: grid; gap: var(--space-1); }
.search-overlay__result { display: block; padding: var(--space-3); border-radius: var(--radius-sm); text-decoration: none; color: var(--color-text); }
.search-overlay__result:hover, .search-overlay__result.is-active { background: var(--color-offwhite-2); }
.search-overlay__result-type { font-size: var(--fs-label); text-transform: uppercase; color: var(--color-primary); }
.search-overlay__close { position: absolute; top: var(--space-4); right: var(--space-4); background: none; border: none; color: var(--color-white); cursor: pointer; }

/* ================================================================ Modal */

.modal { position: fixed; inset: 0; z-index: var(--z-modal); display: flex; align-items: center; justify-content: center; padding: var(--space-4); visibility: hidden; opacity: 0; transition: opacity var(--duration-base) var(--ease-out), visibility var(--duration-base); }
.modal.is-open { visibility: visible; opacity: 1; }
.modal__overlay { position: absolute; inset: 0; background: rgba(11, 11, 13, 0.6); }
.modal__panel { position: relative; background: var(--color-surface); border-radius: var(--radius-lg); padding: var(--space-7); width: min(520px, 100%); box-shadow: var(--shadow-lg); transform: translateY(12px); transition: transform var(--duration-base) var(--ease-out); }
.modal.is-open .modal__panel { transform: translateY(0); }
.modal__close { position: absolute; top: var(--space-4); right: var(--space-4); background: none; border: none; cursor: pointer; }

/* ================================================================ Table of contents */

.toc { background: var(--color-offwhite-2); border-radius: var(--radius-md); padding: var(--space-5); }
.toc__title { font-size: var(--fs-label); text-transform: uppercase; letter-spacing: var(--ls-label); margin-bottom: var(--space-3); }
.toc__list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); font-size: var(--fs-small); }
.toc__list a { color: var(--color-text-muted); text-decoration: none; }
.toc__list a.is-active, .toc__list a:hover { color: var(--color-primary); }
.toc__list ul { list-style: none; padding-left: var(--space-4); margin-top: var(--space-2); }

/* Reading progress bar */
.reading-progress { position: fixed; top: 0; left: 0; height: 3px; background: var(--color-primary); width: 0%; z-index: var(--z-header); transition: width 100ms linear; }

/* Back to top */
.back-to-top {
	position: fixed;
	right: var(--space-5);
	bottom: var(--space-5);
	width: 46px; height: 46px;
	border-radius: 50%;
	background: var(--color-black);
	color: var(--color-white);
	border: none;
	display: flex; align-items: center; justify-content: center;
	cursor: pointer;
	opacity: 0;
	visibility: hidden;
	transform: translateY(8px);
	transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out), visibility var(--duration-base);
	z-index: 90;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* ================================================================ Author box */

.author-box { display: flex; gap: var(--space-4); align-items: center; padding: var(--space-5); background: var(--color-offwhite-2); border-radius: var(--radius-md); margin-top: var(--space-9); }
.author-box__avatar { width: 56px; height: 56px; border-radius: 50%; flex-shrink: 0; }

/* ================================================================ Marquee (logo strip) */

.marquee { overflow: hidden; position: relative; -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent); mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent); }
.marquee__track { display: flex; gap: var(--space-9); width: max-content; animation: momentum-marquee 32s linear infinite; align-items: center; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee img { max-height: 32px; width: auto; opacity: 0.6; filter: grayscale(1); }