/*
 * Avanteria component layer, ordered roughly by appearance in the page.
 */

/* =========================================================================
   Buttons
   ========================================================================= */
.btn {
  --btn-bg: var(--gradient-blue);
  --btn-fg: var(--color-white);
  --btn-border: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-block-size: 2.875rem;
  padding: var(--space-3) var(--space-6);
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-decoration: none;
  text-align: center;
  transition:
    transform var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-base) var(--ease-standard),
    background-color var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard),
    color var(--duration-base) var(--ease-standard);
}

.btn:hover { color: var(--btn-fg); transform: translateY(-1px); box-shadow: var(--shadow-glow-blue); }
.btn:active { transform: translateY(0); }
.btn[aria-disabled='true'], .btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; box-shadow: none; }

.btn__icon { transition: transform var(--duration-base) var(--ease-standard); }
.btn:hover .btn__icon { transform: translateX(3px); }

.btn--secondary {
  --btn-bg: transparent;
  --btn-fg: var(--color-navy);
  --btn-border: var(--color-slate500);
}
.btn--secondary:hover { --btn-border: var(--color-blue); --btn-fg: var(--color-blue-deep); box-shadow: var(--shadow-sm); }

.btn--ghost { --btn-bg: transparent; --btn-fg: var(--color-blue-deep); --btn-border: transparent; padding-inline: var(--space-3); }
.btn--ghost:hover { box-shadow: none; text-decoration: underline; }

/*
 * Secondary and ghost buttons on dark surfaces.
 * Both selectors are required: dark panels such as the mega-menu featured block and the
 * interior page hero carry .on-dark but not .section--dark. Without this, the label stays
 * navy and becomes invisible.
 */
.on-dark .btn--secondary,
.section--dark .btn--secondary {
  --btn-fg: var(--color-white);
  --btn-border: rgba(255, 255, 255, 0.45);
}
.on-dark .btn--secondary:hover,
.section--dark .btn--secondary:hover {
  --btn-border: var(--color-aqua);
  --btn-fg: var(--color-aqua);
  box-shadow: var(--shadow-glow-teal);
}
.on-dark .btn--ghost,
.section--dark .btn--ghost {
  --btn-fg: var(--color-aqua);
}

.btn--sm { min-block-size: 2.375rem; padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.btn--block { inline-size: 100%; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  border-radius: var(--radius-pill);
  color: var(--color-navy);
  transition: background-color var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);
}
.icon-btn:hover { background: var(--color-blue-soft); color: var(--color-blue-deep); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  color: var(--color-blue-deep);
  text-decoration: none;
}
.link-arrow::after {
  content: '';
  inline-size: 0.55rem;
  block-size: 0.55rem;
  border-inline-end: 2px solid currentColor;
  border-block-start: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--duration-base) var(--ease-standard);
}
.link-arrow:hover::after { transform: rotate(45deg) translate(2px, -2px); }
.on-dark .link-arrow, .section--dark .link-arrow { color: var(--color-aqua); }

/* =========================================================================
   Tags
   ========================================================================= */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.3rem var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--color-blue-soft);
  color: var(--color-blue-deep);
  font-size: var(--text-2xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-decoration: none;
}
.tag--teal { background: var(--color-aqua-soft); color: var(--color-teal-text); }
.tag--neutral { background: var(--color-slate100); color: var(--color-slate700); }
a.tag:hover { background: var(--color-blue); color: var(--color-white); }

.on-dark .tag, .section--dark .tag {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-aqua);
}

/* =========================================================================
   Cards
   ========================================================================= */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6);
  border: var(--border-hairline);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  box-shadow: var(--shadow-xs);
  transition:
    transform var(--duration-base) var(--ease-standard),
    box-shadow var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard);
}

.card__title { font-size: var(--text-lg); font-weight: var(--weight-semibold); color: var(--color-navy); }
.card__text { font-size: var(--text-sm); color: var(--color-slate700); line-height: var(--leading-relaxed); }
.card__meta { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); font-size: var(--text-xs); color: var(--color-slate600); }

/*
 * Meta text on dark surfaces. slate600 is a 2.88:1 pairing on navy, which fails.
 * The page hero uses .card__meta for publication dates and reading times, so this rule is
 * what keeps that line legible. Caught by scripts/check-rendered-contrast.mjs.
 */
.on-dark .card__meta,
.section--dark .card__meta,
.on-dark .card__meta span,
.section--dark .card__meta span { color: var(--color-slate300); }
.card__foot { margin-block-start: auto; padding-block-start: var(--space-3); }

.card--link:hover { transform: translateY(-3px); border-color: var(--color-blue); box-shadow: var(--shadow-md); }
.card--link:focus-within { border-color: var(--color-blue); box-shadow: var(--shadow-md); }
.card__link::after { content: ''; position: absolute; inset: 0; border-radius: inherit; }
.card__link { color: inherit; text-decoration: none; }
.card__link:hover { color: var(--color-blue-deep); }

.card--feature { padding: var(--space-8); border-radius: var(--radius-xl); overflow: hidden; }
.card--feature::before {
  content: '';
  position: absolute;
  inset-inline: 0;
  inset-block-start: 0;
  block-size: 3px;
  background: var(--gradient-blue-teal);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-standard);
}
.card--feature:hover::before, .card--feature:focus-within::before { opacity: 1; }
.card--elevated { box-shadow: var(--shadow-md); border-color: transparent; }

/*
 * Glass card on dark surfaces.
 * Every text descendant is set explicitly. Relying on inheritance left eyebrows and
 * checklist items in light-mode colours against a dark panel.
 */
.card--glass {
  background: rgba(255, 255, 255, 0.07);
  border: var(--border-on-dark);
  backdrop-filter: blur(14px);
  box-shadow: none;
}
.card--glass .card__title { color: var(--color-white); }
.card--glass .card__text,
.card--glass p,
.card--glass li,
.card--glass .card__meta { color: var(--color-slate200); }
.card--glass .eyebrow { color: var(--color-aqua); }
.card--glass a:not(.btn),
.card--glass .mega__link { color: var(--color-aqua); }
.card--glass .mega__link:hover { background: rgba(255, 255, 255, 0.1); color: var(--color-white); }
.card--glass:hover { background: rgba(255, 255, 255, 0.11); border-color: rgba(0, 224, 209, 0.45); }

.card-icon {
  display: inline-grid;
  place-items: center;
  inline-size: 3rem;
  block-size: 3rem;
  border-radius: var(--radius-md);
  background: var(--color-blue-soft);
  color: var(--color-blue-deep);
}
.card-icon--teal { background: var(--color-aqua-soft); color: var(--color-teal-text); }
.card--glass .card-icon { background: rgba(0, 224, 209, 0.16); color: var(--color-aqua); }

.insight-card__cover {
  position: relative;
  block-size: 8.5rem;
  margin: calc(var(--space-6) * -1) calc(var(--space-6) * -1) var(--space-2);
  border-start-start-radius: inherit;
  border-start-end-radius: inherit;
  background: var(--gradient-dark);
  overflow: hidden;
}
.insight-card__cover::after {
  content: '';
  position: absolute;
  inset: -40% -10% auto auto;
  inline-size: 16rem;
  block-size: 16rem;
  border-radius: var(--radius-pill);
  background: radial-gradient(circle at 30% 30%, rgba(0, 224, 209, 0.5), transparent 62%);
}
.insight-card__cover-label {
  position: absolute;
  inset-block-end: var(--space-3);
  inset-inline-start: var(--space-4);
  z-index: 1;
  color: var(--color-white);
  font-size: var(--text-2xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.list-card {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  padding: var(--space-5);
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  background: var(--color-white);
  transition: border-color var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard);
}
.list-card:hover { border-color: var(--color-blue); box-shadow: var(--shadow-sm); }
.list-card__body { min-inline-size: 0; }

/* =========================================================================
   Assurance list
   ========================================================================= */
.assurance-list { display: grid; gap: var(--space-3); }
.assurance-list li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--text-sm);
  color: var(--color-slate200);
}
.assurance-list li::before {
  content: '';
  flex: none;
  inline-size: 1.1rem;
  block-size: 1.1rem;
  margin-block-start: 0.2rem;
  border-radius: var(--radius-pill);
  background: var(--gradient-blue-teal);
  clip-path: polygon(14% 46%, 40% 72%, 86% 22%, 94% 32%, 40% 88%, 6% 54%);
}

/* =========================================================================
   Announcement and header
   ========================================================================= */
.announcement {
  position: relative;
  background: var(--gradient-blue);
  color: var(--color-white);
  font-size: var(--text-xs);
}
.announcement__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding-block: var(--space-2);
  padding-inline-end: var(--space-8);
  text-align: center;
}
.announcement a { color: var(--color-white); font-weight: var(--weight-semibold); }
.announcement__dismiss {
  position: absolute;
  inset-inline-end: var(--space-2);
  inset-block: 0;
  color: var(--color-white);
  padding-inline: var(--space-2);
  font-size: var(--text-lg);
  line-height: 1;
}

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-header);
  background: #ffffff;
  backdrop-filter: blur(16px);
  border-block-end: 1px solid transparent;
  transition: box-shadow var(--duration-base) var(--ease-standard), border-color var(--duration-base) var(--ease-standard);
}
.site-header[data-scrolled='true'] { border-block-end-color: var(--color-slate200); box-shadow: var(--shadow-sm); }

/*
 * Header layout.
 *
 * MOBILE FIX: the header previously used a fixed-width inner container while the primary
 * call to action stayed visible, which pushed the row past the viewport and produced a white
 * gutter down the right-hand side of the page on narrow screens. The row is now a two-column
 * grid (brand | actions) that cannot exceed 100%, and the header call to action is hidden
 * below the navigation breakpoint. It reappears inside the mobile menu and as a sticky bar,
 * so the action is never lost.
 */
.site-header__inner {
  display: grid;
  grid-template-columns: auto auto;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-block-size: 8rem;
  max-inline-size: 100%;
}
  
.brand { display: inline-flex; align-items: center; gap: var(--space-3); text-decoration: none; flex: none; min-inline-size: 0; padding-block: 0; }
.site-header .brand { padding-inline: 0; }
.site-header .brand img {
  display: inline-block;
  block-size: clamp(11rem, 12.8vw, 16rem);
  inline-size: auto;
  max-inline-size: 100%;
  object-fit: contain;
}

.primary-nav { display: none; }
.primary-nav__list { display: flex; align-items: center; gap: var(--space-1); list-style: none; margin: 0; padding: 0; }

.primary-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-navy);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  white-space: nowrap;
}
.primary-nav__link::after {
  content: '';
  position: absolute;
  inset-inline: var(--space-3);
  inset-block-end: 0.55rem;
  block-size: 2px;
  border-radius: var(--radius-pill);
  background: var(--gradient-blue-teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-standard);
}
.primary-nav__link:hover::after,
.primary-nav__link[aria-expanded='true']::after,
.primary-nav__link[aria-current='page']::after,
.primary-nav__link[data-active='true']::after { transform: scaleX(1); }

.primary-nav__chevron {
  inline-size: 0.6rem;
  block-size: 0.6rem;
  border-inline-end: 2px solid currentColor;
  border-block-end: 2px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform var(--duration-base) var(--ease-standard);
}
.primary-nav__link[aria-expanded='true'] .primary-nav__chevron { transform: translateY(1px) rotate(-135deg); }

.header-actions { display: flex; align-items: center; gap: var(--space-1); flex: none; }

/* The header CTA is desktop-only. See the mobile fix note above. */
.header-actions .btn { display: none; }

@media (min-width: 68rem) {
  .site-header__inner { grid-template-columns: auto 1fr auto; min-block-size: 8.5rem; }
  .primary-nav { display: block; justify-self: end; }
  .header-actions { gap: var(--space-2); }
  .header-actions .btn { display: inline-flex; }
  .nav-toggle { display: none; }
  .site-header .brand img { block-size: clamp(11rem, 12.8vw, 16rem); transform: none; }
}

/* =========================================================================
   Mega menu
   ========================================================================= */
.mega {
  position: absolute;
  inset-inline: 0;
  inset-block-start: 100%;
  z-index: var(--z-mega-menu);
  background: var(--color-white);
  border-block: 1px solid var(--color-slate200);
  box-shadow: var(--shadow-lg);
}
.mega[hidden] { display: none; }
.mega__inner { display: grid; gap: var(--space-8); padding-block: var(--space-8); }

@media (min-width: 68rem) {
  .mega__inner { grid-template-columns: minmax(0, 3fr) minmax(0, 1fr); }
  .mega__inner--full { grid-template-columns: minmax(0, 1fr); }
}

.mega__columns { display: grid; gap: var(--space-6) var(--space-8); grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); }

.mega__col-title {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-navy);
  text-decoration: none;
  margin-block-end: var(--space-2);
}
.mega__col-title:hover { color: var(--color-blue-deep); }
.mega__col-summary { font-size: var(--text-xs); color: var(--color-slate600); margin-block-end: var(--space-3); max-inline-size: 32ch; }

.mega__links { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.15rem; }
.mega__link {
  display: block;
  padding: var(--space-2) var(--space-3);
  margin-inline-start: calc(var(--space-3) * -1);
  border-radius: var(--radius-xs);
  font-size: var(--text-sm);
  color: var(--color-slate700);
  text-decoration: none;
  transition: background-color var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);
}
.mega__link:hover { background: var(--color-blue-soft); color: var(--color-blue-deep); }

/* Dark featured panel: .on-dark carries the text colours (see base.css contract). */
.mega__featured {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--gradient-dark);
}
.mega__featured h3 { font-size: var(--text-lg); margin-block: var(--space-2) var(--space-3); }
.mega__featured .mega__link { color: var(--color-slate200); }
.mega__featured .mega__link:hover { background: rgba(255, 255, 255, 0.1); color: var(--color-aqua); }

/* =========================================================================
   Mobile navigation
   ========================================================================= */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-1);
  inline-size: 2.75rem;
  block-size: 2.75rem;
  padding-inline: 0.6rem;
  border-radius: var(--radius-sm);
}
.nav-toggle span { display: block; block-size: 2px; border-radius: var(--radius-pill); background: var(--color-navy); }

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-mobile-nav);
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.mobile-nav[hidden] { display: none; }

.mobile-nav__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--container-gutter);
  border-block-end: var(--border-hairline);
}
.mobile-nav__body { padding: var(--space-4) var(--container-gutter) var(--space-12); }
.mobile-nav__item { border-block-end: var(--border-hairline); }

.mobile-nav__trigger {
  display: flex;
  inline-size: 100%;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-4);
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  color: var(--color-navy);
  text-align: start;
  text-decoration: none;
}
.mobile-nav__panel { padding-block-end: var(--space-4); }
.mobile-nav__panel[hidden] { display: none; }

.mobile-nav__group-title {
  display: block;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-slate600);
  margin-block: var(--space-4) var(--space-2);
}
.mobile-nav__link { display: block; padding-block: var(--space-3); font-size: var(--text-base); color: var(--color-slate700); text-decoration: none; }
.mobile-nav__foot { margin-block-start: var(--space-8); display: grid; gap: var(--space-3); }

/*
 * Sticky mobile call to action.
 * Replaces the header button removed on narrow screens. Fixed to the bottom so it never
 * affects document width, and hidden from the navigation breakpoint upward.
 */
.mobile-cta {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  z-index: var(--z-sticky);
  display: flex;
  gap: var(--space-2);
  padding: var(--space-3) var(--container-gutter);
  padding-block-end: calc(var(--space-3) + env(safe-area-inset-bottom, 0px));
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-block-start: var(--border-hairline);
  transform: translateY(110%);
  transition: transform var(--duration-base) var(--ease-standard);
}
.mobile-cta[data-visible='true'] { transform: translateY(0); }
.mobile-cta .btn { flex: 1; }

@media (min-width: 68rem) {
  .mobile-cta { display: none; }
}

/* =========================================================================
   Search
   ========================================================================= */
.search-field {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  inline-size: 100%;
  padding: var(--space-3) var(--space-5);
  border: var(--border-hairline);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  transition: border-color var(--duration-base) var(--ease-standard);
}
.search-field:focus-within { border-color: var(--color-blue); box-shadow: var(--shadow-sm); outline: 3px solid var(--color-blue); outline-offset: 2px; }
.search-field input { flex: 1; min-inline-size: 0; border: 0; background: transparent; font-size: var(--text-base); }
.search-field input:focus-visible { outline: none; }

.search-results { display: grid; gap: var(--space-4); }
.search-result__type {
  font-size: var(--text-2xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-teal-text);
}

/* =========================================================================
   Filters
   ========================================================================= */
.filters {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
  border: var(--border-hairline);
  border-radius: var(--radius-lg);
  background: var(--color-white);
}
.filter-group__legend {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-slate600);
  margin-block-end: var(--space-2);
  padding: 0;
}
.filter-chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.filter-chip {
  display: inline-flex;
  align-items: center;
  min-block-size: 2.25rem;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-slate500);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-slate700);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: background-color var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);
}
.filter-chip:hover { border-color: var(--color-blue); color: var(--color-blue-deep); }

/* Selected state uses colour AND a check mark, never colour alone. */
.filter-chip[aria-pressed='true'], .filter-chip[data-selected='true'] {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: var(--color-white);
}
.filter-chip[aria-pressed='true']::before, .filter-chip[data-selected='true']::before {
  content: '\2713';
  margin-inline-end: var(--space-2);
  font-weight: var(--weight-bold);
}

/* =========================================================================
   Tabs
   ========================================================================= */
.tabs__list { display: flex; flex-wrap: wrap; gap: var(--space-2); padding: var(--space-2); border-radius: var(--radius-pill); background: var(--color-slate100); }
.section--dark .tabs__list { background: rgba(255, 255, 255, 0.08); }

.tabs__tab {
  min-block-size: 2.5rem;
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-pill);
  color: var(--color-slate700);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: background-color var(--duration-base) var(--ease-standard), color var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard);
}
.tabs__tab[aria-selected='true'] { background: var(--color-white); color: var(--color-navy); box-shadow: var(--shadow-sm); }
.section--dark .tabs__tab { color: var(--color-slate200); }
.section--dark .tabs__tab[aria-selected='true'] { background: var(--color-white); color: var(--color-navy); }

.tabs__panel { margin-block-start: var(--space-8); }

/* No-JS contract: every panel renders and stays visible until the script upgrades the tabs. */
.tabs[data-tabs-ready='true'] .tabs__panel[hidden] { display: none; }
.tabs:not([data-tabs-ready='true']) .tabs__panel { display: block !important; }
.tabs:not([data-tabs-ready='true']) .tabs__panel-heading { display: block; }
.tabs__panel-heading { display: none; font-size: var(--text-xl); margin-block-end: var(--space-4); }

/* =========================================================================
   Accordion, built on details/summary so it works with no JavaScript
   ========================================================================= */
.accordion { display: grid; gap: var(--space-3); }
.accordion__item { border: var(--border-hairline); border-radius: var(--radius-md); background: var(--color-white); overflow: hidden; }
.accordion__item[open] { border-color: var(--color-blue); box-shadow: var(--shadow-sm); }

.accordion__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--color-navy);
  cursor: pointer;
  list-style: none;
  min-block-size: 3.25rem;
}
.accordion__summary::-webkit-details-marker { display: none; }
.accordion__summary::after {
  content: '';
  flex: none;
  inline-size: 0.65rem;
  block-size: 0.65rem;
  border-inline-end: 2px solid var(--color-blue);
  border-block-end: 2px solid var(--color-blue);
  transform: rotate(45deg);
  transition: transform var(--duration-base) var(--ease-standard);
}
.accordion__item[open] .accordion__summary::after { transform: rotate(-135deg); }
.accordion__body { padding: 0 var(--space-6) var(--space-6); font-size: var(--text-sm); color: var(--color-slate700); line-height: var(--leading-relaxed); }

/* =========================================================================
   Stepper and lifecycle
   ========================================================================= */
.stepper { display: grid; gap: var(--space-6); counter-reset: step; list-style: none; padding: 0; }

@media (min-width: 48rem) {
  .stepper--grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); }
}

.step { position: relative; padding-inline-start: var(--space-12); }
.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0;
  display: grid;
  place-items: center;
  inline-size: 2.5rem;
  block-size: 2.5rem;
  border-radius: var(--radius-pill);
  background: var(--gradient-blue);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
}
.step__title { font-size: var(--text-lg); font-weight: var(--weight-semibold); color: var(--color-navy); margin-block-end: var(--space-2); }
.step__text { font-size: var(--text-sm); color: var(--color-slate700); line-height: var(--leading-relaxed); }
.step__deliverables { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-block-start: var(--space-3); }

.on-dark .step__title, .section--dark .step__title { color: var(--color-white); }
.on-dark .step__text, .section--dark .step__text { color: var(--color-slate200); }

.lifecycle { position: relative; display: grid; gap: var(--space-6); counter-reset: phase; list-style: none; padding: 0; }

@media (min-width: 60rem) {
  .lifecycle { grid-template-columns: repeat(9, minmax(0, 1fr)); gap: var(--space-4); }
  .lifecycle::before {
    content: '';
    position: absolute;
    inset-inline: 5%;
    inset-block-start: 1.25rem;
    block-size: 2px;
    background: linear-gradient(90deg, var(--color-blue), var(--color-aqua));
    opacity: 0.4;
  }
}

.phase { position: relative; padding-inline-start: var(--space-12); }

@media (min-width: 60rem) {
  .phase { padding-inline-start: 0; padding-block-start: var(--space-12); text-align: center; }
  .phase::before { inset-inline-start: 50%; transform: translateX(-50%); }
}

.phase::before {
  counter-increment: phase;
  content: counter(phase);
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  display: grid;
  place-items: center;
  inline-size: 2.5rem;
  block-size: 2.5rem;
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-aqua);
  background: var(--color-navy-deep);
  color: var(--color-aqua);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
}
.phase__title { font-size: var(--text-base); font-weight: var(--weight-semibold); color: var(--color-white); margin-block-end: var(--space-2); }
.phase__text { font-size: var(--text-xs); color: var(--color-slate200); line-height: var(--leading-relaxed); }

/* =========================================================================
   Quote
   ========================================================================= */
.quote {
  position: relative;
  padding: var(--space-8);
  border-inline-start: 3px solid var(--color-aqua);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  color: var(--color-navy);
  margin: 0;
}
.quote__attribution { margin-block-start: var(--space-4); font-size: var(--text-sm); font-weight: var(--weight-medium); color: var(--color-slate600); }

/* =========================================================================
   Capability strip
   ========================================================================= */
.capability-strip { display: grid; gap: var(--space-3); grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr)); }

.capability-chip {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border: var(--border-on-dark);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-white);
  text-decoration: none;
  transition: background-color var(--duration-base) var(--ease-standard), border-color var(--duration-base) var(--ease-standard), transform var(--duration-base) var(--ease-standard);
}
.capability-chip:hover { background: rgba(255, 255, 255, 0.11); border-color: rgba(0, 224, 209, 0.5); transform: translateY(-2px); color: var(--color-white); }
.capability-chip__label { font-size: var(--text-sm); font-weight: var(--weight-medium); line-height: var(--leading-snug); }
.capability-chip__blurb { display: block; font-size: var(--text-2xs); color: var(--color-slate300); font-weight: var(--weight-regular); }
.capability-chip .icon { color: var(--color-aqua); }

/* =========================================================================
   CTA banner
   ========================================================================= */
.cta-banner {
  position: relative;
  padding: clamp(var(--space-8), 5vw, var(--space-16));
  border-radius: var(--radius-2xl);
  background: var(--gradient-dark);
  overflow: hidden;
  isolation: isolate;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset-block-start: -30%;
  inset-inline-end: -10%;
  inline-size: 28rem;
  block-size: 28rem;
  border-radius: var(--radius-pill);
  background: radial-gradient(circle, rgba(18, 97, 255, 0.45), transparent 65%);
  z-index: -1;
}
.cta-banner::after {
  content: '';
  position: absolute;
  inset-block-end: -40%;
  inset-inline-start: -8%;
  inline-size: 24rem;
  block-size: 24rem;
  border-radius: var(--radius-pill);
  background: radial-gradient(circle, rgba(0, 224, 209, 0.32), transparent 65%);
  z-index: -1;
}
.cta-banner h2 { max-inline-size: 22ch; }
.cta-banner__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-block-start: var(--space-8); }

/* =========================================================================
   Breadcrumbs
   ========================================================================= */
.breadcrumbs { padding-block: var(--space-4); font-size: var(--text-xs); }
.breadcrumbs ol { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); list-style: none; margin: 0; padding: 0; }
.breadcrumbs li:not(:last-child)::after { content: '/'; margin-inline-start: var(--space-2); color: var(--color-slate300); }
.breadcrumbs a { color: var(--color-slate600); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-blue-deep); text-decoration: underline; }
.breadcrumbs [aria-current='page'] { color: var(--color-slate700); font-weight: var(--weight-medium); }

/*
 * Breadcrumbs on dark surfaces.
 * Both selectors required: page heroes carry .on-dark only. Slate300 on navy is 11.3:1,
 * and the current page reads white so the trail end is unambiguous.
 */
.on-dark .breadcrumbs a,
.section--dark .breadcrumbs a { color: var(--color-slate300); }
.on-dark .breadcrumbs a:hover,
.section--dark .breadcrumbs a:hover { color: var(--color-aqua); }
.on-dark .breadcrumbs [aria-current='page'],
.section--dark .breadcrumbs [aria-current='page'] { color: var(--color-white); }
.on-dark .breadcrumbs li:not(:last-child)::after,
.section--dark .breadcrumbs li:not(:last-child)::after { color: rgba(255, 255, 255, 0.4); }

/* =========================================================================
   Page hero (interior pages)
   ========================================================================= */
.page-hero {
  position: relative;
  background: var(--gradient-dark);
  padding-block: var(--space-4) clamp(var(--space-12), 7vw, var(--space-24));
  overflow: hidden;
  isolation: isolate;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset-block-start: -25%;
  inset-inline-end: -5%;
  inline-size: 34rem;
  block-size: 34rem;
  border-radius: var(--radius-pill);
  background: radial-gradient(circle at 40% 40%, rgba(18, 97, 255, 0.4), transparent 62%);
  z-index: -1;
}
.page-hero__grid { display: grid; gap: var(--space-8); align-items: end; }

@media (min-width: 62rem) {
  .page-hero__grid--split { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); }
}

.page-hero h1 { max-inline-size: 20ch; }
.page-hero__lead { font-size: var(--text-lg); max-inline-size: 62ch; margin-block-start: var(--space-5); }
.page-hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-block-start: var(--space-8); }

.pull-up { margin-block-start: calc(clamp(var(--space-8), 5vw, var(--space-16)) * -1); position: relative; z-index: 1; }

/* =========================================================================
   Prose
   ========================================================================= */
.prose { max-inline-size: 72ch; font-size: var(--text-base); line-height: var(--leading-relaxed); color: var(--color-slate700); }
.prose > * + * { margin-block-start: var(--space-5); }
.prose h2 { font-size: var(--text-2xl); margin-block-start: var(--space-12); }
.prose h3 { font-size: var(--text-xl); margin-block-start: var(--space-8); }
.prose ul, .prose ol { padding-inline-start: var(--space-6); display: grid; gap: var(--space-2); }
.prose li::marker { color: var(--color-blue); font-weight: var(--weight-semibold); }
.prose table { font-size: var(--text-sm); border: var(--border-hairline); border-radius: var(--radius-md); overflow: hidden; }
.prose th, .prose td { padding: var(--space-3) var(--space-4); text-align: start; border-block-end: var(--border-hairline); vertical-align: top; }
.prose thead th {
  background: var(--color-surface);
  color: var(--color-navy);
  font-weight: var(--weight-semibold);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.callout { padding: var(--space-5) var(--space-6); border-radius: var(--radius-md); border-inline-start: 3px solid var(--color-blue); background: var(--color-blue-soft); }
.callout--note { border-inline-start-color: var(--color-teal-text); background: var(--color-aqua-soft); }
.callout__title { font-size: var(--text-sm); font-weight: var(--weight-semibold); color: var(--color-navy); margin-block-end: var(--space-2); }
.callout p { font-size: var(--text-sm); margin: 0; }

.toc {
  position: sticky;
  inset-block-start: 6.5rem;
  padding: var(--space-5);
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  background: var(--color-white);
  font-size: var(--text-sm);
}
.toc__title { font-size: var(--text-xs); font-weight: var(--weight-semibold); letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--color-slate600); margin-block-end: var(--space-3); }
.toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); }
.toc a { color: var(--color-slate700); text-decoration: none; }
.toc a:hover { color: var(--color-blue-deep); text-decoration: underline; }

/* =========================================================================
   Forms
   ========================================================================= */
.form { display: grid; gap: var(--space-6); }
.form__grid { display: grid; gap: var(--space-5); }

@media (min-width: 40rem) {
  .form__grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.field { display: grid; gap: var(--space-2); }
.field__label { font-size: var(--text-sm); font-weight: var(--weight-medium); color: var(--color-navy); }
.field__required { color: var(--color-danger); margin-inline-start: 0.15rem; }
.field__hint { font-size: var(--text-xs); color: var(--color-slate600); }

.field__control {
  inline-size: 100%;
  min-block-size: 2.875rem;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-slate500);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  font-size: var(--text-base);
  transition: border-color var(--duration-base) var(--ease-standard), box-shadow var(--duration-base) var(--ease-standard);
}

/* The default outline is replaced by a ring that follows the border radius. */
.field__control:focus-visible { outline: none; border-color: var(--color-blue); box-shadow: 0 0 0 3px rgba(18, 97, 255, 0.35); }
.field__control:focus { border-color: var(--color-blue); box-shadow: 0 0 0 3px rgba(18, 97, 255, 0.18); }

textarea.field__control { min-block-size: 8rem; resize: vertical; }

select.field__control {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--color-slate600) 50%), linear-gradient(135deg, var(--color-slate600) 50%, transparent 50%);
  background-position: calc(100% - 1.15rem) 1.25rem, calc(100% - 0.8rem) 1.25rem;
  background-size: 0.35rem 0.35rem, 0.35rem 0.35rem;
  background-repeat: no-repeat;
  padding-inline-end: var(--space-10);
}

.field[data-invalid='true'] .field__control { border-color: var(--color-danger); }

.field__error {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-danger);
}
.field__error::before {
  content: '!';
  display: grid;
  place-items: center;
  flex: none;
  inline-size: 1rem;
  block-size: 1rem;
  border-radius: var(--radius-pill);
  background: var(--color-danger);
  color: var(--color-white);
  font-size: 0.65rem;
  font-weight: var(--weight-bold);
}
.field__error[hidden] { display: none; }

.checkbox { display: flex; align-items: flex-start; gap: var(--space-3); font-size: var(--text-sm); color: var(--color-slate700); }
.checkbox input { inline-size: 1.25rem; block-size: 1.25rem; margin-block-start: 0.15rem; accent-color: var(--color-blue); flex: none; }

.form__status { padding: var(--space-5) var(--space-6); border-radius: var(--radius-md); font-size: var(--text-sm); border-inline-start: 3px solid; }
.form__status[hidden] { display: none; }
.form__status--error { border-color: var(--color-danger); background: rgba(179, 36, 59, 0.08); color: var(--color-danger); }
.form__status--success { border-color: var(--color-teal-text); background: var(--color-aqua-soft); color: var(--color-teal-text); }
.form__status--info { border-color: var(--color-blue); background: var(--color-blue-soft); color: var(--color-blue-deep); }

.form-panel {
  padding: clamp(var(--space-6), 4vw, var(--space-10));
  border-radius: var(--radius-xl);
  background: var(--color-white);
  border: var(--border-hairline);
  box-shadow: var(--shadow-md);
}

/* =========================================================================
   States
   ========================================================================= */
.state {
  display: grid;
  justify-items: center;
  gap: var(--space-3);
  padding: clamp(var(--space-10), 6vw, var(--space-16)) var(--space-6);
  border: 1px dashed var(--color-slate300);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  text-align: center;
}
.state__title { font-size: var(--text-xl); font-weight: var(--weight-semibold); color: var(--color-navy); }
.state__text { font-size: var(--text-sm); color: var(--color-slate600); max-inline-size: 46ch; }

.spinner { inline-size: 1.15rem; block-size: 1.15rem; border-radius: var(--radius-pill); border: 2px solid currentColor; border-block-start-color: transparent; animation: av-spin 700ms linear infinite; }
.skeleton { border-radius: var(--radius-sm); background: linear-gradient(90deg, var(--color-slate100) 25%, var(--color-slate200) 37%, var(--color-slate100) 63%); background-size: 400% 100%; animation: av-shimmer 1.4s ease infinite; block-size: 1rem; }

/* =========================================================================
   Pagination
   ========================================================================= */
.pagination { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: var(--space-2); margin-block-start: var(--space-12); }
.pagination__link {
  display: inline-grid;
  place-items: center;
  min-inline-size: 2.75rem;
  min-block-size: 2.75rem;
  padding-inline: var(--space-3);
  border: 1px solid var(--color-slate500);
  border-radius: var(--radius-sm);
  color: var(--color-slate700);
  font-size: var(--text-sm);
  text-decoration: none;
}
.pagination__link:hover { border-color: var(--color-blue); color: var(--color-blue-deep); }
.pagination__link[aria-current='page'] { background: var(--color-navy); border-color: var(--color-navy); color: var(--color-white); }
.pagination__link[aria-disabled='true'] { opacity: 0.45; pointer-events: none; }

/* =========================================================================
   Toast and cookie panel
   ========================================================================= */
.toast-region {
  position: fixed;
  inset-block-end: var(--space-6);
  inset-inline-end: var(--space-6);
  z-index: var(--z-toast);
  display: grid;
  gap: var(--space-3);
  max-inline-size: min(24rem, calc(100vw - 2rem));
}
.toast { display: flex; gap: var(--space-3); padding: var(--space-4) var(--space-5); border-radius: var(--radius-md); background: var(--color-navy); color: var(--color-white); box-shadow: var(--shadow-lg); font-size: var(--text-sm); }

.cookie-panel {
  position: fixed;
  inset-block-end: var(--space-4);
  inset-inline: var(--space-4);
  z-index: var(--z-dialog);
  max-inline-size: 34rem;
  margin-inline: auto;
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  border: var(--border-hairline);
  box-shadow: var(--shadow-xl);
}
.cookie-panel[hidden] { display: none; }
.cookie-panel__title { font-size: var(--text-lg); font-weight: var(--weight-semibold); color: var(--color-navy); margin-block-end: var(--space-2); }
.cookie-panel__text { font-size: var(--text-sm); color: var(--color-slate700); }
.cookie-panel__options { display: grid; gap: var(--space-3); margin-block: var(--space-5); padding-block: var(--space-4); border-block: var(--border-hairline); }
.cookie-panel__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.cookie-panel__actions .btn { flex: 1 1 10rem; }

/* =========================================================================
   Footer
   ========================================================================= */
.site-footer { background: var(--gradient-dark); padding-block: var(--section-md) var(--space-8); font-size: var(--text-sm); }
.site-footer__top { display: grid; gap: var(--space-10); }

@media (min-width: 62rem) {
  .site-footer__top { grid-template-columns: minmax(0, 1fr) minmax(0, 2.4fr); }
}

.site-footer__brand img,
.brand img { block-size: 8rem; inline-size: auto; }
.site-footer__columns { display: grid; gap: var(--space-8); grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr)); }

.footer-col__title {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-white);
  margin-block-end: var(--space-4);
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); }
.footer-col a { color: var(--color-slate300); font-size: var(--text-sm); text-decoration: none; }
.footer-col a:hover { color: var(--color-aqua); text-decoration: underline; }

.newsletter { margin-block-start: var(--space-6); max-inline-size: 26rem; }
.newsletter__row { display: flex; gap: var(--space-2); margin-block-start: var(--space-3); }
.newsletter__row input {
  flex: 1;
  min-inline-size: 0;
  min-block-size: 2.875rem;
  padding-inline: var(--space-4);
  border-radius: var(--radius-pill);
  border: var(--border-on-dark);
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
}
.newsletter__row input::placeholder { color: var(--color-slate300); }

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
  align-items: center;
  justify-content: space-between;
  margin-block-start: var(--space-12);
  padding-block-start: var(--space-6);
  border-block-start: var(--border-on-dark);
  font-size: var(--text-xs);
  color: var(--color-slate300);
}
.site-footer__legal { display: flex; flex-wrap: wrap; gap: var(--space-4); }
.site-footer__legal a, .site-footer__social a { color: var(--color-slate300); text-decoration: none; }
.site-footer__legal a:hover, .site-footer__social a:hover { color: var(--color-aqua); }
.site-footer__social { display: flex; gap: var(--space-4); }

.trademark-note { max-inline-size: 70ch; margin-block-start: var(--space-4); font-size: var(--text-2xs); color: var(--color-slate300); line-height: var(--leading-relaxed); }

/* =========================================================================
   Hero and ecosystem diagram
   ========================================================================= */
.hero {
  position: relative;
  background: var(--gradient-dark);
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  overflow: hidden;
  isolation: isolate;
}
.hero__mesh {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(42rem 30rem at 78% 8%, rgba(18, 97, 255, 0.42), transparent 60%),
    radial-gradient(34rem 26rem at 12% 82%, rgba(0, 194, 178, 0.28), transparent 62%);
}
.hero__grid-lines {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.16) 1px, transparent 1px);
  background-size: 4.5rem 4.5rem;
  mask-image: radial-gradient(circle at 50% 40%, #000 30%, transparent 78%);
}
.hero__grid { display: grid; gap: clamp(var(--space-10), 6vw, var(--space-16)); align-items: center; }

@media (min-width: 64rem) {
  .hero__grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); }
}

.hero h1 { max-inline-size: 17ch; }
.hero__lead { font-size: var(--text-lg); line-height: var(--leading-relaxed); max-inline-size: 56ch; margin-block-start: var(--space-6); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-block-start: var(--space-8); }
.hero__assurances { margin-block-start: var(--space-10); padding-block-start: var(--space-8); border-block-start: var(--border-on-dark); }

.ecosystem {
  position: relative;
  padding: var(--space-6);
  border-radius: var(--radius-hero);
  background: rgba(255, 255, 255, 0.06);
  border: var(--border-on-dark);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-xl);
  margin: 0;
}
.ecosystem__caption {
  font-size: var(--text-2xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-aqua);
  margin-block-end: var(--space-4);
}
.ecosystem__core {
  position: relative;
  display: grid;
  place-items: center;
  gap: var(--space-1);
  padding: var(--space-5);
  margin-block-end: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--gradient-blue);
  color: var(--color-white);
  text-align: center;
  box-shadow: var(--shadow-glow-blue);
}
.ecosystem__core-label { font-size: var(--text-base); font-weight: var(--weight-semibold); }
.ecosystem__core-sub { font-size: var(--text-2xs); opacity: 0.9; }

.ecosystem__nodes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); }

@media (min-width: 30rem) {
  .ecosystem__nodes { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.ecosystem__node {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-3);
  border-radius: var(--radius-md);
  border: var(--border-on-dark);
  background: rgba(11, 29, 58, 0.55);
  color: var(--color-white);
  font-size: var(--text-2xs);
  font-weight: var(--weight-medium);
  text-align: center;
  text-decoration: none;
  justify-items: center;
  transition: transform var(--duration-base) var(--ease-standard), border-color var(--duration-base) var(--ease-standard), background-color var(--duration-base) var(--ease-standard);
}
.ecosystem__node .icon { color: var(--color-aqua); }
.ecosystem__node:hover { transform: translateY(-2px); border-color: rgba(0, 224, 209, 0.55); background: rgba(18, 97, 255, 0.22); color: var(--color-white); }

.ecosystem__flow { display: grid; gap: var(--space-2); margin-block-start: var(--space-5); padding-block-start: var(--space-5); border-block-start: var(--border-on-dark); }
.ecosystem__flow-step { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-3); align-items: baseline; font-size: var(--text-2xs); color: var(--color-slate200); margin: 0; }
.ecosystem__flow-stage { font-weight: var(--weight-semibold); color: var(--color-aqua); letter-spacing: var(--tracking-wide); text-transform: uppercase; }

/* =========================================================================
   Misc
   ========================================================================= */
.hairline { block-size: 1px; border: 0; background: var(--gradient-hairline); opacity: 0.4; margin-block: var(--space-10); }

.definition-list { display: grid; gap: var(--space-4); }
.definition-list div { display: grid; gap: var(--space-1); padding-block-end: var(--space-4); border-block-end: var(--border-hairline); }
.definition-list dt { font-size: var(--text-xs); font-weight: var(--weight-semibold); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--color-slate600); }
.definition-list dd { margin: 0; font-size: var(--text-sm); color: var(--color-slate700); }

.checklist { display: grid; gap: var(--space-3); list-style: none; padding: 0; margin: 0; }
.checklist li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
  font-size: var(--text-sm);
  color: var(--color-slate700);
  line-height: var(--leading-relaxed);
}
.checklist li::before {
  content: '';
  inline-size: 1.15rem;
  block-size: 1.15rem;
  margin-block-start: 0.2rem;
  border-radius: var(--radius-pill);
  background: var(--gradient-blue-teal);
  clip-path: polygon(14% 46%, 40% 72%, 86% 22%, 94% 32%, 40% 88%, 6% 54%);
}
.on-dark .checklist li, .section--dark .checklist li { color: var(--color-slate200); }

.to-top {
  position: fixed;
  inset-block-end: var(--space-6);
  inset-inline-start: var(--space-6);
  z-index: var(--z-sticky);
  display: inline-grid;
  place-items: center;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  border-radius: var(--radius-pill);
  background: var(--color-navy);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-standard);
}
.to-top[data-visible='true'] { opacity: 1; pointer-events: auto; }

/* The back-to-top control must not sit under the sticky mobile action bar. */
@media (max-width: 67.99rem) {
  .to-top { inset-block-end: 5.25rem; }
  .toast-region { inset-block-end: 5.25rem; }
  .cookie-panel { inset-block-end: 5.25rem; }
}

/* ===== HEADER SIZE FIX — overrides everything above ===== */
.site-header .site-header__inner {
  min-block-size: 3.5rem !important;
}
.site-header .brand img {
  block-size: 2rem !important;
  inline-size: auto !important;
}
@media (min-width: 68rem) {
  .site-header .site-header__inner {
    min-block-size: 3.75rem !important;
  }
  .site-header .brand img {
    block-size: 6.25rem !important;
  }
}