/* Layout: containers, grid, sections, header, mega-menu, mobile menu, footer. */
.container { width: 100%; max-width: var(--page-max); margin-inline: auto; padding-inline: var(--margin); }
.container--narrow { max-width: calc(880px + 2 * var(--margin)); }

.grid { display: grid; gap: var(--gutter); grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (min-width: 768px) { .grid { grid-template-columns: repeat(12, minmax(0, 1fr)); } }
.grid > * { grid-column: 1 / -1; }
@media (min-width: 768px) {
  .span-3 { grid-column: span 3; } .span-4 { grid-column: span 4; } .span-5 { grid-column: span 5; }
  .span-6 { grid-column: span 6; } .span-7 { grid-column: span 7; } .span-8 { grid-column: span 8; }
}

.cards { display: grid; gap: var(--gutter); grid-template-columns: repeat(auto-fill, minmax(min(100%, var(--card-min, 260px)), 1fr)); }
.stack > * + * { margin-top: var(--stack, var(--sp-4)); }
.cluster { display: flex; flex-wrap: wrap; gap: var(--cluster, var(--sp-3)); align-items: center; }

/* Sections alternate: dark navy heroes, white and Cloud content (brief §3). */
.section { padding-block: var(--section-y); position: relative; }
.section--tight { padding-block: calc(var(--section-y) * 0.6); }
.section--white { background: var(--white); }
.section--cloud { background: var(--cloud); }
.section--mist { background: var(--mist); }
.section--navy { background: var(--navy); }
.section--deep { background: var(--deep); }
.section--gradient { background: var(--gradient-hero); }
.section-head { display: grid; gap: var(--sp-4); margin-bottom: clamp(2rem, 1.5rem + 2vw, 3.5rem); max-width: 760px; }
.section-head--split { max-width: none; }
@media (min-width: 960px) {
  .section-head--split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: end; gap: var(--sp-7); }
}

/* Lattice texture: built from the logo's diamond geometry, kept quiet (BG §05: 7–25%).
   A light follows the mouse across it (lattice-light.js sets --lx, --ly and --lr): the diamonds
   near the pointer brighten inside a soft Sky glow. Elsewhere it stays at its quiet strength. */
.lattice::before, .hstage .stage__viz::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  --lat-base: rgba(0, 0, 0, 0.08);
  background-image: var(--pattern-lattice), radial-gradient(circle var(--lr, 0px) at var(--lx, -999px) var(--ly, -999px), color-mix(in srgb, var(--sky) 22%, transparent), transparent 70%);
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 40%, black 70%, transparent), radial-gradient(circle var(--lr, 0px) at var(--lx, -999px) var(--ly, -999px), rgba(0, 0, 0, 0.6), var(--lat-base) 100%);
  mask-image: linear-gradient(to bottom, transparent, black 40%, black 70%, transparent), radial-gradient(circle var(--lr, 0px) at var(--lx, -999px) var(--ly, -999px), rgba(0, 0, 0, 0.6), var(--lat-base) 100%);
  -webkit-mask-composite: source-in; mask-composite: intersect;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: var(--z-header);
  height: var(--header-h); display: flex; flex-direction: column;
  transition: background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), height var(--dur) var(--ease);
}
.site-header__bar { flex: 1; min-height: 0; width: 100%; display: flex; align-items: center; gap: var(--sp-5); }

/* ---------- Top bar: founding-partners ticker and social links ---------- */
.topbar {
  flex: none; height: var(--topbar-h); overflow: hidden; background: var(--navy); border-bottom: 1px solid var(--navy-line);
  font-size: var(--fs-xs); color: var(--navy-text-muted);
  transition: height var(--dur) var(--ease), opacity var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.site-header.is-solid .topbar { height: 0; opacity: 0; border-bottom-width: 0; }
.topbar__inner { height: 100%; display: flex; align-items: center; gap: var(--sp-5); }

.ticker { flex: 1; min-width: 0; height: 100%; display: flex; align-items: center; gap: var(--sp-2); }
.ticker__toggle {
  flex: none; display: grid; place-items: center; width: 26px; height: 26px; padding: 0; border-radius: 50%;
  border: 1px solid var(--navy-line); background: transparent; color: var(--sky); cursor: pointer;
}
.ticker__toggle .icon { width: 13px; height: 13px; stroke-width: 2.2; }
.ticker__play { display: none; }
.ticker.is-paused .ticker__pause { display: none; }
.ticker.is-paused .ticker__play { display: block; fill: currentColor; }
.ticker__toggle:hover { border-color: var(--sky); background: var(--navy-raised); }
.ticker__viewport {
  flex: 1; min-width: 0; height: 100%; overflow: hidden; display: flex; align-items: center;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 24px, #000 calc(100% - 48px), transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 24px, #000 calc(100% - 48px), transparent 100%);
}
.ticker__track { display: flex; width: max-content; animation: ticker 48s linear infinite; }
.ticker:hover .ticker__track, .ticker:focus-within .ticker__track, .ticker.is-paused .ticker__track { animation-play-state: paused; }
.ticker__group { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; flex: none; }
.ticker__group li { display: flex; align-items: center; white-space: nowrap; }
/* A brand diamond between items, alternating Sky and white. */
.ticker__group li::after { content: ""; width: 6px; height: 6px; margin-inline: 22px; transform: rotate(45deg); background: var(--sky); flex: none; }
.ticker__group li:nth-child(even)::after { background: var(--white); }
.ticker__group li { color: var(--cloud); }
.ticker__tag {
  margin-right: 10px; padding: 2px 9px; border-radius: var(--radius-capsule); background: var(--amber); color: var(--navy);
  font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.6875rem;
}
.ticker a { display: inline-flex; align-items: center; gap: 6px; min-height: 24px; color: var(--white); font-weight: 700; text-decoration: none; }
.ticker a .icon { width: 14px; height: 14px; }
.ticker a:hover { color: var(--sky); text-decoration: underline; }
@keyframes ticker { to { transform: translateX(-50%); } }

/* Social links: round buttons that pop in one by one and pass a light wave along; on hover the
   ring fills Sky, lifts with the brand depth offset and the mark turns navy. */
.social { flex: none; display: flex; align-items: center; gap: var(--sp-3); }
.social__label { font-weight: 700; letter-spacing: var(--track-overline); text-transform: uppercase; color: var(--sky); }
.social__list { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 8px; }
.social__link {
  position: relative; display: grid; place-items: center; width: 30px; height: 30px; color: var(--white); text-decoration: none;
  animation: social-in 520ms var(--ease) both; animation-delay: calc(300ms + var(--i, 0) * 70ms);
}
.social__link::before {
  content: ""; position: absolute; inset: 0; border: 1.5px solid var(--navy-line); border-radius: 50%;
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  animation: social-wave 7s ease-in-out infinite; animation-delay: calc(2s + var(--i, 0) * 160ms);
}
.social__icon { position: relative; width: 16px; height: 16px; fill: currentColor; transition: color var(--dur) var(--ease), transform var(--dur) var(--ease); }
.social__link:hover::before, .social__link:focus-visible::before { transform: translate(2px, -2px); background: var(--sky); border-color: var(--sky); box-shadow: -3px 3px 0 0 var(--white); animation: none; }
.social__link:hover .social__icon, .social__link:focus-visible .social__icon { color: var(--navy); transform: translate(2px, -2px) scale(1.08); }
.social__link:focus-visible { outline: 2px solid var(--sky); outline-offset: 3px; border-radius: 50%; }
/* "Coming soon" tip for links that are not live yet. */
.social__link[data-soon]::after {
  content: "Coming soon"; position: absolute; top: calc(100% + 6px); left: 50%; transform: translate(-50%, -4px); white-space: nowrap;
  padding: 3px 8px; border-radius: var(--radius-sm); background: var(--white); color: var(--navy); font-size: 0.6875rem; font-weight: 700;
  opacity: 0; pointer-events: none; transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.social__link[data-soon]:hover::after, .social__link[data-soon]:focus-visible::after { opacity: 1; transform: translate(-50%, 0); }
@keyframes social-in { from { opacity: 0; transform: scale(0.4) rotate(-120deg); } }
@keyframes social-wave { 0%, 88%, 100% { border-color: var(--navy-line); box-shadow: none; } 93% { border-color: var(--sky); box-shadow: 0 0 10px 0 var(--sky); } }
/* The top bar's tips would be clipped by its height, so they show only inside the menu. */
.topbar .social__link[data-soon]::after { display: none; }

/* In the footer: a "Follow us" row under the brand blurb, a little larger, with the tip below. */
.social--footer { display: grid; gap: 0; justify-items: start; }
.site-footer .social--footer .social__list { display: flex; flex-wrap: wrap; gap: 10px; }
.site-footer .social--footer .social__link { display: grid; width: 38px; height: 38px; min-height: 0; animation: none; }
.site-footer .social--footer .social__icon { width: 18px; height: 18px; }
.site-footer .social--footer .social__link:hover { text-decoration: none; }
/* Laptops: the brand column is narrower, so the row tightens to stay on one line. */
@media (min-width: 1100px) and (max-width: 1279.98px) {
  .site-footer .social--footer .social__list { gap: 4px; }
  .site-footer .social--footer .social__link { width: 32px; height: 32px; }
  .site-footer .social--footer .social__icon { width: 16px; height: 16px; }
}

/* In the mobile menu the same links sit in a row. */
.social--menu .social__list { gap: 10px; }
.social--menu .social__link { width: 44px; height: 44px; animation: none; }
.social--menu .social__icon { width: 20px; height: 20px; }

/* Phones and small tablets: the top bar keeps the ticker; the social links live in the menu. */
@media (max-width: 719.98px) {
  :root { --topbar-h: 34px; --header-bar-h: 80px; }
  .topbar .social { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .ticker__track { animation: none; }
  .ticker__group[aria-hidden="true"], .ticker__toggle { display: none; }
  .social__link, .social__link::before { animation: none; }
}
.site-header__brand { display: flex; align-items: center; flex: none; border-radius: 6px; }
.site-header__brand img { width: 140px; height: auto; }
.site-header__brand .logo-solid { display: none; width: 124px; }
.site-header__nav { margin-left: auto; display: none; }
.site-header__actions { display: flex; align-items: center; gap: var(--sp-3); margin-left: auto; }

/* Default: over a dark hero, transparent, reversed logo, white links.
   Pages with a light hero set <body data-hero="light">. */
.site-header { color: var(--white); --focus: var(--sky); }
/* Solid: white bar, compact wordmark (BG §02 version B, min 96 px). */
.site-header.is-solid, [data-hero="light"] .site-header { background: var(--white); box-shadow: var(--shadow-header); color: var(--navy); --focus: var(--blue); }
.site-header.is-solid { height: var(--header-h-solid); }
.site-header.is-solid .logo-top, [data-hero="light"] .site-header .logo-top { display: none; }
.site-header.is-solid .logo-solid, [data-hero="light"] .site-header .logo-solid { display: block; }
.site-header.mega-open { background: var(--white); color: var(--navy); --focus: var(--blue); box-shadow: var(--shadow-header); }
.site-header.mega-open .logo-top { display: none; }
.site-header.mega-open .logo-solid { display: block; }

.nav-list { display: flex; align-items: center; gap: clamp(0.25rem, 0.1rem + 0.6vw, 0.75rem); margin: 0; padding: 0; list-style: none; }
.nav-link {
  position: relative; display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 10px;
  font-family: var(--font-body); font-weight: 700; font-size: 0.9375rem; letter-spacing: 0.01em;
  color: inherit; text-decoration: none; background: none; border: 0; border-radius: var(--radius-capsule);
}
.nav-link::after {
  content: ""; position: absolute; left: 10px; right: 10px; bottom: 8px; height: 2px; border-radius: 2px;
  background: var(--sky); transform: scaleX(0); transform-origin: left; transition: transform var(--dur) var(--ease);
}
.nav-link:hover { color: inherit; }
.nav-link:hover::after, .nav-link[aria-current="page"]::after, .nav-link[aria-expanded="true"]::after { transform: scaleX(1); }
.is-solid .nav-link::after, .mega-open .nav-link::after, [data-hero="light"] .nav-link::after { background: var(--blue); }
.nav-link .icon { width: 16px; height: 16px; transition: transform var(--dur) var(--ease); }
.nav-link[aria-expanded="true"] .icon { transform: rotate(180deg); }

@media (min-width: 1140px) {
  .site-header__nav { display: block; }
  .site-header__actions { margin-left: var(--sp-3); }
  .menu-toggle { display: none; }
}
@media (max-width: 1139.98px) { .site-header__actions .btn--header { display: none; } }
@media (max-width: 520px) { .site-header__brand img.logo-top { width: 140px; } }

/* ---------- Mega-menu ---------- */
.mega {
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--white); color: var(--text); box-shadow: var(--shadow-header);
  border-top: 1px solid var(--line);
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility 0s linear var(--dur);
}
@media (max-width: 1139.98px) { .mega { display: none; } }
.mega.is-open { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.mega__inner { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--sp-6); padding-block: var(--sp-6) var(--sp-5); }
.mega__col { display: grid; align-content: start; gap: var(--sp-3); }
.mega__pillar { display: grid; gap: 2px; text-decoration: none; padding: var(--sp-3); margin: calc(var(--sp-3) * -1); border-radius: var(--radius-sm); }
.mega__pillar:hover { background: var(--mist); }
.mega__pillar strong { font-family: var(--font-display); font-weight: 800; font-size: 1.0625rem; color: var(--navy); }
.mega__pillar span { font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--blue); }
.mega__services { list-style: none; margin: var(--sp-2) 0 0; padding: var(--sp-3) 0 0; border-top: 1px solid var(--line); display: grid; gap: 2px; }
.mega__services a { display: block; padding: 6px 0; font-size: var(--fs-small); color: var(--text); text-decoration: none; }
.mega__services a:hover { color: var(--blue); text-decoration: underline; }
.mega__foot { display: flex; justify-content: space-between; align-items: center; gap: var(--sp-4); padding-block: var(--sp-4); border-top: 1px solid var(--line); font-size: var(--fs-small); color: var(--text-muted); }

/* ---------- Mobile menu ---------- */
.menu-toggle {
  display: inline-grid; place-items: center; width: 48px; height: 48px; padding: 0;
  border: 1.5px solid currentColor; border-radius: var(--radius-capsule); background: transparent; color: inherit;
}
.menu-toggle .icon { width: 22px; height: 22px; }
@media (min-width: 1140px) { .site-header .menu-toggle { display: none; } }
.mobile-menu {
  position: fixed; inset: 0; z-index: var(--z-menu);
  background: var(--navy); color: var(--white);
  display: flex; flex-direction: column; overflow-y: auto; overscroll-behavior: contain;
  visibility: hidden; opacity: 0; transition: opacity var(--dur) var(--ease), visibility 0s linear var(--dur);
}
.mobile-menu.is-open { visibility: visible; opacity: 1; transition-delay: 0s; }
.mobile-menu__top { display: flex; align-items: center; justify-content: space-between; height: var(--header-bar-h); flex: none; }
.mobile-menu__top img { width: 140px; }
.mobile-menu__body { padding-block: var(--sp-4) var(--sp-7); display: grid; gap: var(--sp-6); }
.mobile-menu__list { list-style: none; margin: 0; padding: 0; }
.mobile-menu__list > li { border-bottom: 1px solid var(--navy-line); }
.mobile-menu__link {
  display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 60px; padding: 0;
  font-family: var(--font-display); font-weight: 800; font-size: clamp(1.375rem, 1.1rem + 1.4vw, 1.75rem);
  color: var(--white); text-decoration: none; background: none; border: 0; text-align: left;
}
.mobile-menu__link[aria-current="page"] { color: var(--sky); }
.mobile-menu__link .icon { width: 24px; height: 24px; transition: transform var(--dur) var(--ease); }
.mobile-menu__link[aria-expanded="true"] .icon { transform: rotate(180deg); }
.mobile-menu__sub { list-style: none; margin: 0; padding: 0 0 var(--sp-4); display: grid; gap: var(--sp-1); }
.mobile-menu__sub a { display: flex; flex-direction: column; padding: var(--sp-2) 0; color: var(--white); text-decoration: none; font-weight: 700; }
.mobile-menu__sub a span { font-weight: 400; font-size: var(--fs-small); color: var(--navy-text-muted); }
.mobile-menu__contact { display: grid; gap: var(--sp-2); font-size: var(--fs-small); color: var(--navy-text-muted); }
.mobile-menu__contact a { color: var(--white); }
.no-scroll { overflow: hidden; }

/* ---------- Footer ---------- */
.site-footer { background: var(--deep); padding-top: clamp(3.5rem, 2.5rem + 4vw, 6rem); position: relative; overflow: hidden; }
/* Phones: brand, then Pillars | Company, then Reach us full width. Tablets: brand above three
   columns. Desktop: brand, Pillars, Company and a wider Reach us. Legal links sit in the bottom bar. */
.site-footer__grid { display: grid; gap: var(--sp-7) var(--gutter); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.site-footer__brand { grid-column: 1 / -1; display: grid; gap: var(--sp-5); align-content: start; max-width: 380px; }
.site-footer__reach { grid-column: 1 / -1; }
.site-footer__reach address a { overflow-wrap: anywhere; }
@media (min-width: 560px) {
  .site-footer__reach address { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--gutter); }
  .site-footer__reach address span:nth-child(-n+2) { grid-column: 1 / -1; }
}
.site-footer__brand img { width: 168px; }
.site-footer__brand p { color: var(--navy-text-muted); font-size: var(--fs-small); }
.site-footer h2 { font-family: var(--font-body); font-size: var(--fs-xs); font-weight: 700; letter-spacing: var(--track-overline); text-transform: uppercase; color: var(--sky); margin-bottom: var(--sp-4); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sp-1); }
.site-footer a { color: var(--white); text-decoration: none; font-size: var(--fs-small); }
/* WCAG 2.2 target size: every footer link is at least 24 px tall. */
.site-footer a:not(address a) { display: inline-flex; align-items: center; min-height: 28px; }
.site-footer a:hover { color: var(--sky); text-decoration: underline; }
.site-footer address { font-style: normal; font-size: var(--fs-small); color: var(--navy-text-muted); display: grid; gap: var(--sp-3); }
.site-footer address strong { display: block; color: var(--white); font-size: var(--fs-xs); letter-spacing: 0.12em; text-transform: uppercase; }
.footer-linkbtn { padding: 0; border: 0; background: none; color: var(--white); font-size: var(--fs-small); text-align: left; }
.footer-linkbtn:hover { color: var(--sky); text-decoration: underline; }
.site-footer__bottom {
  margin-top: clamp(3rem, 2rem + 3vw, 5rem); padding-block: var(--sp-5);
  border-top: 1px solid var(--navy-line);
  display: grid; gap: var(--sp-3); font-size: var(--fs-xs); color: var(--navy-text-muted);
}
.site-footer__bottom p { margin: 0; }
.site-footer__legal ul { display: flex; flex-wrap: wrap; gap: 0 var(--sp-5); }
.site-footer__legal a { font-size: var(--fs-xs); color: var(--navy-text-muted); }
@media (min-width: 720px) {
  .site-footer__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.6fr); }
  .site-footer__reach { grid-column: auto; }
  .site-footer__reach address { grid-template-columns: minmax(0, 1fr); }
}
@media (min-width: 1100px) {
  .site-footer__grid { grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr) minmax(0, 0.85fr) minmax(0, 1.5fr); gap: var(--sp-7) clamp(2rem, 1rem + 2vw, 3.5rem); }
  .site-footer__brand { grid-column: auto; }
  .site-footer__bottom { grid-template-columns: 1fr auto auto; align-items: center; column-gap: var(--sp-7); }
}
@media (min-width: 1280px) {
  .site-footer__reach address { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--sp-6); }
}