/* ==========================================================================
   IGNC — Layout: scroll bar, header, navigation, hero, footer
   ========================================================================== */

/* --- Scroll progress ----------------------------------------------------- */

.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: var(--z-top);
  width: 100%;
  height: 3px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

/* --- Header -------------------------------------------------------------- */

.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  transition: transform var(--t-med) var(--ease-out),
    background var(--t-med) var(--ease-out),
    box-shadow var(--t-med) var(--ease-out);
}

.header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid transparent;
  opacity: 0;
  transition: opacity var(--t-med) var(--ease-out);
}

.header.is-stuck::before {
  opacity: 1;
  border-bottom-color: rgba(228, 231, 244, 0.9);
  box-shadow: 0 6px 28px rgba(11, 16, 48, 0.07);
}

/* Hidden while scrolling down, revealed on scroll up. */
.header.is-hidden {
  transform: translateY(-104%);
}

.header__inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  min-height: var(--header-h);
  padding-block: 0.7rem;
}

/* --- Overlay state ------------------------------------------------------
   Before the header sticks it floats over the page hero, which is always a
   dark --grad-night panel. The default ink-on-white chrome is unreadable
   there, so everything flips to light until .is-stuck brings the glass
   background in behind it.
   ------------------------------------------------------------------------ */

.header:not(.is-stuck) .brand__name {
  color: #fff;
}

.header:not(.is-stuck) .brand__tag {
  color: #a3ade0;
}

.header:not(.is-stuck) .nav__link {
  color: #ccd4f5;
}

.header:not(.is-stuck) .nav__link:hover,
.header:not(.is-stuck) .nav__item:focus-within > .nav__link,
.header:not(.is-stuck) .nav__link[aria-current="page"],
.header:not(.is-stuck) .nav__item.is-active > .nav__link {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.header:not(.is-stuck) .burger {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.24);
}

.header:not(.is-stuck) .burger:hover {
  border-color: rgba(255, 255, 255, 0.55);
}

.header:not(.is-stuck) .burger span {
  background: #fff;
}

/* Drawer open: the burger is now over the white panel, so it flips back to
   ink regardless of whether the header has stuck yet. */
.header.is-menu-open .burger {
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--border);
}

.header.is-menu-open .burger span {
  background: var(--c-ink);
}

/* --- Brand lockup -------------------------------------------------------- */

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  flex-shrink: 0;
}

.brand:hover {
  color: var(--text);
}

.brand__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--sh-sm);
  overflow: hidden;
  transition: transform var(--t-med) var(--ease-spring),
    box-shadow var(--t-med) var(--ease-out);
}

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

.brand:hover .brand__mark {
  transform: rotate(-6deg) scale(1.06);
  box-shadow: var(--sh-md);
}

/* Sweeping shine across the logo tile on hover. */
.brand__mark::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    transparent 35%,
    rgba(255, 255, 255, 0.85) 50%,
    transparent 65%
  );
  transform: translateX(-140%);
  transition: transform 700ms var(--ease-out);
}

.brand:hover .brand__mark::after {
  transform: translateX(140%);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.16rem;
  letter-spacing: 0.02em;
  transition: color var(--t-med) var(--ease-out);
}

.brand__tag {
  font-size: 0.63rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--t-med) var(--ease-out);
}

/* --- Desktop navigation -------------------------------------------------- */

.nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav__item {
  position: relative;
}

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.6rem 0.95rem;
  border-radius: var(--r-pill);
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-soft);
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease-out),
    background var(--t-fast) var(--ease-out);
}

.nav__link:hover,
.nav__item:focus-within > .nav__link {
  color: var(--c-blue-700);
  background: rgba(28, 48, 168, 0.06);
}

/* Animated underline that grows from the centre. */
.nav__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0.28rem;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-brand);
  transform: translateX(-50%);
  transition: width var(--t-med) var(--ease-out);
}

.nav__link:hover::after,
.nav__link[aria-current="page"]::after,
.nav__item.is-active > .nav__link::after {
  width: 40%;
}

.nav__link[aria-current="page"],
.nav__item.is-active > .nav__link {
  color: var(--c-blue-700);
}

.nav__caret {
  width: 10px;
  height: 10px;
  transition: transform var(--t-med) var(--ease-spring);
}

.nav__item:hover .nav__caret,
.nav__item:focus-within .nav__caret,
.nav__item.is-open .nav__caret {
  transform: rotate(180deg);
}

/* --- Dropdown ------------------------------------------------------------ */

.dropdown {
  position: absolute;
  top: calc(100% + 0.55rem);
  left: 50%;
  min-width: 268px;
  padding: 0.55rem;
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  box-shadow: var(--sh-lg);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 12px) scale(0.97);
  transform-origin: top center;
  transition: opacity var(--t-med) var(--ease-out),
    transform var(--t-med) var(--ease-spring),
    visibility 0s linear var(--t-med);
}

.nav__item:hover > .dropdown,
.nav__item:focus-within > .dropdown,
.nav__item.is-open > .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0) scale(1);
  transition-delay: 0s;
}

/* Little pointer notch. */
.dropdown::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  width: 12px;
  height: 12px;
  background: inherit;
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
  transform: translateX(-50%) rotate(45deg);
}

/* Invisible bridge so the pointer can travel to the panel. */
.dropdown::after {
  content: "";
  position: absolute;
  inset: -0.7rem 0 auto 0;
  height: 0.9rem;
}

.dropdown__link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.62rem 0.7rem;
  border-radius: var(--r-md);
  color: var(--text-soft);
  font-weight: 600;
  font-size: 0.92rem;
  transition: background var(--t-fast) var(--ease-out),
    color var(--t-fast) var(--ease-out),
    transform var(--t-fast) var(--ease-out);
}

.dropdown__link:hover {
  background: var(--grad-brand-soft);
  color: var(--c-blue-700);
  transform: translateX(4px);
}

.dropdown__flag {
  font-size: 1.25rem;
  line-height: 1;
  filter: drop-shadow(0 2px 4px rgba(11, 16, 48, 0.18));
}

.dropdown__meta {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

/* Staggered entrance for dropdown rows. */
.dropdown li {
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity var(--t-med) var(--ease-out),
    transform var(--t-med) var(--ease-out);
}

.nav__item:hover > .dropdown li,
.nav__item:focus-within > .dropdown li,
.nav__item.is-open > .dropdown li {
  opacity: 1;
  transform: translateY(0);
}

.dropdown li:nth-child(1) {
  transition-delay: 40ms;
}
.dropdown li:nth-child(2) {
  transition-delay: 90ms;
}
.dropdown li:nth-child(3) {
  transition-delay: 140ms;
}

/* --- Header actions ------------------------------------------------------ */

.header__actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* --- Burger -------------------------------------------------------------- */

.burger {
  display: none;
  position: relative;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.8);
  transition: background var(--t-fast) var(--ease-out),
    border-color var(--t-fast) var(--ease-out);
}

.burger:hover {
  border-color: var(--c-blue-400);
}

.burger span {
  position: absolute;
  left: 50%;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-ink);
  transform: translateX(-50%);
  transition: transform var(--t-med) var(--ease-spring),
    opacity var(--t-fast) var(--ease-out), width var(--t-med) var(--ease-out);
}

.burger span:nth-child(1) {
  top: 16px;
}
.burger span:nth-child(2) {
  top: 22px;
  width: 14px;
  margin-left: -3px;
}
.burger span:nth-child(3) {
  top: 28px;
}

.burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateX(-50%) translateY(6px) rotate(45deg);
}
.burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: translateX(-50%) scaleX(0.2);
}
.burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateX(-50%) translateY(-6px) rotate(-45deg);
}

/* --- Mobile drawer ------------------------------------------------------- */

.drawer-scrim {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-drawer) - 1);
  background: rgba(6, 12, 51, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-med) var(--ease-out),
    visibility 0s linear var(--t-med);
}

.drawer-scrim.is-open {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-drawer);
  width: min(88vw, 380px);
  padding: calc(var(--header-h) + 1rem) 1.4rem 2.5rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: #fff;
  border-left: 1px solid var(--border);
  box-shadow: -30px 0 70px rgba(11, 16, 48, 0.18);
  transform: translateX(102%);
  transition: transform 460ms var(--ease-out);
  visibility: hidden;
}

.drawer.is-open {
  transform: translateX(0);
  visibility: visible;
}

.drawer__list > li {
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateX(26px);
  transition: opacity 380ms var(--ease-out), transform 380ms var(--ease-out);
}

.drawer.is-open .drawer__list > li {
  opacity: 1;
  transform: translateX(0);
}

.drawer.is-open .drawer__list > li:nth-child(1) {
  transition-delay: 120ms;
}
.drawer.is-open .drawer__list > li:nth-child(2) {
  transition-delay: 180ms;
}
.drawer.is-open .drawer__list > li:nth-child(3) {
  transition-delay: 240ms;
}
.drawer.is-open .drawer__list > li:nth-child(4) {
  transition-delay: 300ms;
}

.drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  padding: 1.05rem 0.25rem;
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--text);
  text-align: left;
}

.drawer__link[aria-current="page"] {
  color: var(--c-blue-600);
}

.drawer__link .nav__caret {
  width: 13px;
  height: 13px;
  color: var(--text-muted);
}

.drawer__link[aria-expanded="true"] .nav__caret {
  transform: rotate(180deg);
}

/* Accordion sub-panel */
.drawer__sub {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 380ms var(--ease-out);
}

.drawer__sub > div {
  overflow: hidden;
}

.drawer__link[aria-expanded="true"] + .drawer__sub {
  grid-template-rows: 1fr;
}

.drawer__sublink {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.72rem 0.9rem;
  margin-bottom: 0.4rem;
  border-radius: var(--r-md);
  background: var(--c-surface-2);
  color: var(--text-soft);
  font-weight: 600;
  font-size: 0.94rem;
}

.drawer__sublink:hover {
  background: var(--grad-brand-soft);
  color: var(--c-blue-700);
}

.drawer__foot {
  margin-top: 2rem;
  display: grid;
  gap: 0.8rem;
}

/* --- Hero ---------------------------------------------------------------- */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: min(100svh, 900px);
  padding-top: calc(var(--header-h) + clamp(2rem, 5vw, 4rem));
  padding-bottom: clamp(3rem, 7vw, 6rem);
  background: var(--grad-night);
  color: #eaeeff;
  overflow: hidden;
  isolation: isolate;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  overflow: hidden;
}

/* Drifting aurora blobs. */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  will-change: transform;
}

.orb--1 {
  top: -14%;
  left: -8%;
  width: 46vw;
  height: 46vw;
  min-width: 320px;
  min-height: 320px;
  background: radial-gradient(circle, #2b49d4, transparent 68%);
  animation: orb-drift-a 22s var(--ease-in-out) infinite alternate;
}

.orb--2 {
  bottom: -20%;
  right: -10%;
  width: 42vw;
  height: 42vw;
  min-width: 300px;
  min-height: 300px;
  background: radial-gradient(circle, #8a2be2, transparent 68%);
  animation: orb-drift-b 26s var(--ease-in-out) infinite alternate;
}

.orb--3 {
  top: 34%;
  right: 22%;
  width: 26vw;
  height: 26vw;
  min-width: 220px;
  min-height: 220px;
  background: radial-gradient(circle, #5cb800, transparent 70%);
  opacity: 0.32;
  animation: orb-drift-c 19s var(--ease-in-out) infinite alternate;
}

.hero__grid-lines {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.045) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 62% at 50% 42%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(
    ellipse 80% 62% at 50% 42%,
    #000 20%,
    transparent 78%
  );
  animation: grid-pan 40s linear infinite;
}

.hero__stars {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: var(--z-content);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4.5rem);
  width: 100%;
}

.hero h1 {
  font-size: var(--fs-hero);
  color: #fff;
  letter-spacing: -0.035em;
  margin-bottom: 1.35rem;
}

.hero__lead {
  max-width: 54ch;
  font-size: var(--fs-lg);
  color: #b9c2ea;
  margin-bottom: 2.1rem;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 2.6rem;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-top: 1.9rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero__stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 1.2rem + 1.6vw, 2.4rem);
  font-weight: 800;
  line-height: 1;
  color: #fff;
}

.hero__stat-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: #8b96c9;
}

/* Hero emblem */
.hero__emblem {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  max-width: 460px;
  margin-inline: auto;
  width: 100%;
}

.hero__emblem img {
  position: relative;
  z-index: 2;
  width: 76%;
  border-radius: 50%;
  box-shadow: 0 30px 80px rgba(6, 12, 51, 0.6),
    0 0 0 12px rgba(255, 255, 255, 0.04);
  animation: float-soft 7s var(--ease-in-out) infinite;
}

.hero__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.hero__ring--1 {
  animation: spin 26s linear infinite;
}

.hero__ring--1::before,
.hero__ring--1::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-gold-500);
  box-shadow: 0 0 22px var(--c-gold-500);
}

.hero__ring--1::before {
  top: -6px;
  left: 50%;
  margin-left: -6px;
}

.hero__ring--1::after {
  bottom: -6px;
  left: 50%;
  margin-left: -6px;
  background: var(--c-green-400);
  box-shadow: 0 0 22px var(--c-green-400);
}

.hero__ring--2 {
  inset: 9%;
  border-style: dashed;
  border-color: rgba(255, 255, 255, 0.1);
  animation: spin 34s linear infinite reverse;
}

.hero__glow {
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(91, 123, 240, 0.5),
    transparent 62%
  );
  filter: blur(28px);
  animation: pulse-glow 5s var(--ease-in-out) infinite;
}

/* Scroll hint */
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 1.6rem;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: 0.55rem;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: #a3ade0;
}

.hero__scroll-track {
  width: 1px;
  height: 46px;
  background: linear-gradient(
    to bottom,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  overflow: hidden;
  position: relative;
}

.hero__scroll-track::after {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 14px;
  background: var(--c-gold-500);
  animation: scroll-bead 2.1s var(--ease-in-out) infinite;
}

/* --- Page banner (inner pages) ------------------------------------------- */

.page-hero {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(3rem, 7vw, 5.5rem));
  padding-bottom: clamp(3rem, 6vw, 5rem);
  background: var(--grad-night);
  color: #eaeeff;
  overflow: hidden;
  isolation: isolate;
}

.page-hero__inner {
  position: relative;
  z-index: var(--z-content);
  max-width: 780px;
}

.page-hero h1 {
  color: #fff;
  font-size: var(--fs-3xl);
  margin-block: 0.9rem 1.1rem;
}

.page-hero p {
  color: #b9c2ea;
  font-size: var(--fs-lg);
  max-width: 60ch;
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-sm);
  color: #8b96c9;
}

.crumbs a {
  color: #b9c2ea;
}

.crumbs a:hover {
  color: var(--c-gold-400);
}

.crumbs span[aria-hidden] {
  opacity: 0.5;
}

/* --- Footer -------------------------------------------------------------- */

.footer {
  position: relative;
  padding-top: clamp(3.5rem, 6vw, 5.5rem);
  background: var(--grad-night);
  color: #b9c2ea;
  overflow: hidden;
}

.footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad-brand);
  background-size: 200% 100%;
  animation: gradient-pan 9s linear infinite;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: clamp(2rem, 4vw, 3rem);
  padding-bottom: 3rem;
}

.footer h4 {
  font-size: 0.78rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 1.15rem;
}

.footer__links li + li {
  margin-top: 0.7rem;
}

.footer__links a {
  position: relative;
  color: #b9c2ea;
  font-size: 0.94rem;
}

.footer__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: var(--c-gold-400);
  transition: width var(--t-med) var(--ease-out);
}

.footer__links a:hover {
  color: #fff;
}

.footer__links a:hover::after {
  width: 100%;
}

.footer .brand__name,
.footer__blurb strong {
  color: #fff;
}

.footer__blurb {
  margin-top: 1.15rem;
  font-size: 0.94rem;
  max-width: 34ch;
}

.footer__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--fs-sm);
}

.footer__bar p {
  color: #8b96c9;
}

.socials {
  display: flex;
  gap: 0.6rem;
}

.social {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #b9c2ea;
  transition: transform var(--t-med) var(--ease-spring),
    background var(--t-med) var(--ease-out), color var(--t-fast) var(--ease-out),
    border-color var(--t-fast) var(--ease-out);
}

.social:hover {
  transform: translateY(-4px) rotate(-6deg);
  background: var(--grad-brand);
  border-color: transparent;
  color: #fff;
}

.social svg {
  width: 18px;
  height: 18px;
}