.ixc-site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: minmax(8rem, 1fr) auto minmax(3rem, 1fr);
  align-items: center;
  min-height: var(--ixc-header);
  padding: 0 var(--ixc-edge);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  background: linear-gradient(180deg, rgba(5, 5, 5, 0.68), rgba(5, 5, 5, 0.26));
  backdrop-filter: blur(1.2rem) saturate(1.35);
  -webkit-backdrop-filter: blur(1.2rem) saturate(1.35);
  transition: transform 220ms ease, background 220ms ease, border-color 220ms ease, color 220ms ease;
}

.ixc-site-header.is-solid,
body.menu-open .ixc-site-header {
  border-bottom-color: rgba(5, 5, 5, 0.08);
  color: #111;
  background: rgba(255, 255, 255, 0.78);
}

.ixc-site-header.is-hidden {
  transform: translateY(-100%);
}

.ixc-brand {
  display: inline-flex;
  width: fit-content;
  align-items: center;
}

.ixc-brand img {
  display: block;
  width: clamp(6.9rem, 8.4vw, 10.2rem);
  height: auto;
}

.ixc-brand img.ixc-brand__mark--dark {
  display: none;
}

.ixc-site-header.is-solid .ixc-brand img.ixc-brand__mark--light,
body.menu-open .ixc-site-header .ixc-brand img.ixc-brand__mark--light {
  display: none;
}

.ixc-site-header.is-solid .ixc-brand img.ixc-brand__mark--dark,
body.menu-open .ixc-site-header .ixc-brand img.ixc-brand__mark--dark {
  display: block;
}

.ixc-gnb {
  display: flex;
  gap: clamp(1.5rem, 3vw, 4.2rem);
  align-items: center;
  justify-content: center;
}

.ixc-gnb a {
  position: relative;
  padding: 0.35rem 0;
  color: currentColor;
  font-size: clamp(0.88rem, 0.22vw + 0.82rem, 1.08rem);
  font-weight: 840;
  line-height: 1.2;
}

.ixc-gnb a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -0.42rem;
  left: 0;
  height: 0.14rem;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.ixc-gnb a:hover::after,
.ixc-gnb a:focus-visible::after,
.ixc-gnb a[aria-current="page"]::after {
  transform: scaleX(1);
}

.ixc-menu-toggle {
  justify-self: end;
  display: inline-grid;
  width: clamp(2.8rem, 3.2vw, 3.4rem);
  height: clamp(2.8rem, 3.2vw, 3.4rem);
  place-items: center;
  border: 0;
  color: currentColor;
  background: transparent;
  cursor: pointer;
}

.ixc-menu-toggle span,
.ixc-menu-toggle span::before,
.ixc-menu-toggle span::after {
  content: "";
  display: block;
  width: 1.72rem;
  height: 0.13rem;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.ixc-menu-toggle span {
  position: relative;
}

.ixc-menu-toggle span::before,
.ixc-menu-toggle span::after {
  position: absolute;
  left: 0;
}

.ixc-menu-toggle span::before {
  top: -0.52rem;
}

.ixc-menu-toggle span::after {
  top: 0.52rem;
}

.ixc-menu-toggle[aria-expanded="true"] span {
  transform: rotate(45deg);
}

.ixc-menu-toggle[aria-expanded="true"] span::before {
  transform: translateY(0.52rem) rotate(90deg);
}

.ixc-menu-toggle[aria-expanded="true"] span::after {
  opacity: 0;
}

.ixc-full-menu {
  position: fixed;
  z-index: 95;
  top: var(--ixc-header);
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  max-height: none;
  overflow-y: auto;
  overscroll-behavior: contain;
  border-bottom: 1px solid rgba(5, 5, 5, 0.08);
  background:
    radial-gradient(circle at 18% 0%, rgba(81, 36, 131, 0.12), transparent 34rem),
    rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(1.4rem) saturate(1.2);
  -webkit-backdrop-filter: blur(1.4rem) saturate(1.2);
  box-shadow: var(--ixc-shadow);
}

.ixc-full-menu[hidden] {
  display: none;
}

.ixc-full-menu__inner {
  display: grid;
  flex: 1;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(1.4rem, 2vw, 2.6rem);
  align-content: start;
  padding: clamp(3rem, 5vw, 5.4rem) var(--ixc-edge) clamp(3.6rem, 6vw, 6rem);
}

.ixc-full-menu__col {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: clamp(1.1rem, 1.6vw, 1.6rem);
  border-top: 1px solid rgba(5, 5, 5, 0.14);
  padding-top: clamp(1.2rem, 1.8vw, 1.7rem);
}

.ixc-full-menu__col span {
  color: var(--ixc-purple);
  font-size: 0.88rem;
  font-weight: 860;
}

.ixc-full-menu__col a {
  color: #555b66;
  font-size: clamp(0.98rem, 0.24vw + 0.9rem, 1.14rem);
  font-weight: 720;
  line-height: 1.35;
}

.ixc-full-menu__col a:hover,
.ixc-full-menu__col a:focus-visible {
  color: var(--ixc-purple);
}

.ixc-full-menu__title {
  margin-bottom: clamp(1.1rem, 1.6vw, 1.7rem);
  color: var(--ixc-ink);
  font-size: clamp(1.05rem, 0.32vw + 0.96rem, 1.3rem);
  font-weight: 880;
}

.wp-block-button.is-style-glass .wp-block-button__link,
.ixc-glass-button,
.ixc-link-button {
  display: inline-flex;
  min-height: 3.6rem;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.95rem 1.35rem;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: var(--ixc-radius);
  white-space: normal;
  color: #fff;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.055));
  backdrop-filter: blur(1rem) saturate(1.35);
  -webkit-backdrop-filter: blur(1rem) saturate(1.35);
  box-shadow: 0 0.8rem 2.4rem rgba(0, 0, 0, 0.14);
  font-size: clamp(0.9rem, 0.18vw + 0.84rem, 1rem);
  font-weight: 850;
  line-height: 1.2;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.wp-block-button.is-style-glass .wp-block-button__link::after,
.ixc-glass-button::after,
.ixc-link-button::after {
  content: "";
  display: block;
  flex: 0 0 auto;
  width: 0.52rem;
  height: 0.52rem;
  border-top: 0.13rem solid currentColor;
  border-right: 0.13rem solid currentColor;
  transform: rotate(45deg);
}

.is-light-surface .wp-block-button.is-style-glass .wp-block-button__link,
.ixc-section:not(.is-dark) .wp-block-button.is-style-glass .wp-block-button__link,
.ixc-article-shell .wp-block-button.is-style-glass .wp-block-button__link,
.ixc-archive-shell .wp-block-button.is-style-glass .wp-block-button__link {
  border-color: rgba(5, 5, 5, 0.18);
  color: var(--ixc-ink);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.48));
}

.is-light-surface .wp-block-button.is-style-glass .wp-block-button__link::after,
.ixc-section:not(.is-dark) .wp-block-button.is-style-glass .wp-block-button__link::after,
.ixc-article-shell .wp-block-button.is-style-glass .wp-block-button__link::after,
.ixc-archive-shell .wp-block-button.is-style-glass .wp-block-button__link::after {
  color: currentColor;
}

.wp-block-button.is-style-glass .wp-block-button__link:hover,
.wp-block-button.is-style-glass .wp-block-button__link:focus-visible,
.ixc-glass-button:hover,
.ixc-glass-button:focus-visible,
.ixc-link-button:hover,
.ixc-link-button:focus-visible {
  border-color: rgba(155, 104, 255, 0.78);
  background: rgba(155, 104, 255, 0.18);
  transform: translateY(-0.08rem);
}

.ixc-footer {
  padding: clamp(5rem, 8vw, 8rem) var(--ixc-edge);
  border-top: 1px solid rgba(5, 5, 5, 0.1);
  background: #f5f5f7;
}

.ixc-footer__inner {
  display: grid;
  grid-template-columns: minmax(10rem, 0.34fr) minmax(0, 0.66fr);
  gap: clamp(2.4rem, 6vw, 7rem);
  align-items: start;
}

.ixc-footer__brand img {
  width: clamp(8.5rem, 12vw, 14rem);
}

.ixc-footer h2 {
  margin: 0 0 1.2rem;
  font-size: clamp(1.35rem, 1vw + 1rem, 2.3rem);
  line-height: 1.2;
}

.ixc-footer p {
  margin: 0.36rem 0;
  color: #555b66;
  font-size: clamp(0.92rem, 0.2vw + 0.84rem, 1.05rem);
  line-height: 1.62;
}

.ixc-footer-links {
  display: flex;
  gap: 0.5rem 1.1rem;
  flex-wrap: wrap;
  margin-top: 1.4rem;
}

.ixc-footer-links a {
  color: var(--ixc-ink);
  font-weight: 760;
}

.ixc-copyright {
  margin-top: 1.2rem;
}

@media (max-width: 70rem) {
  .ixc-site-header {
    grid-template-columns: 1fr auto;
  }

  .ixc-gnb {
    display: none;
  }

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

@media (max-width: 48rem) {
  .ixc-full-menu__inner,
  .ixc-footer__inner {
    grid-template-columns: 1fr;
  }

  .ixc-full-menu {
    top: var(--ixc-header);
  }

  .ixc-full-menu__inner {
    padding-top: 2rem;
  }

  .wp-block-button.is-style-glass .wp-block-button__link,
  .ixc-glass-button,
  .ixc-link-button {
    width: 100%;
    min-height: 3.4rem;
  }

  .ixc-full-menu__inner {
    padding-bottom: 4rem;
  }
}

/* Enterprise polish pass: make header/menu state deterministic and avoid ghost panels. */
.ixc-site-header {
  isolation: isolate;
}

.ixc-site-header:not(.is-solid):not(.is-menu-open) {
  color: #fff;
  background:
    linear-gradient(180deg, rgba(5, 5, 5, 0.72), rgba(5, 5, 5, 0.34)),
    rgba(5, 5, 5, 0.08);
}

.ixc-site-header.is-menu-open,
body.menu-open .ixc-site-header {
  color: var(--ixc-ink);
  background:
    radial-gradient(circle at 14% 0%, rgba(81, 36, 131, 0.16), transparent 30rem),
    rgba(255, 255, 255, 0.88);
}

.ixc-full-menu[hidden],
.ixc-full-menu:not(.is-open) {
  display: none !important;
}

.ixc-full-menu.is-open {
  display: flex;
}

.ixc-full-menu {
  height: calc(100svh - var(--ixc-header));
  overflow: hidden;
}

.ixc-full-menu__inner {
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-gutter: stable;
}

.ixc-menu-toggle {
  border-radius: 999rem;
}

.ixc-menu-toggle span,
.ixc-menu-toggle span::before,
.ixc-menu-toggle span::after {
  border-radius: 999rem;
}

.ixc-menu-toggle[aria-expanded="true"] span::before {
  top: 0;
  transform: rotate(90deg);
}

.ixc-menu-toggle[aria-expanded="true"] span::after {
  top: 0;
  opacity: 0;
}

.wp-block-button .wp-block-button__link,
.ixc-glass-button,
.ixc-link-button {
  border-radius: var(--ixc-radius) !important;
}

.wp-block-button:not(.is-style-glass) .wp-block-button__link {
  display: inline-flex;
  min-height: 3.6rem;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.95rem 1.35rem;
  border: 1px solid rgba(255, 255, 255, 0.38);
  color: #fff;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.055));
  backdrop-filter: blur(1rem) saturate(1.35);
  -webkit-backdrop-filter: blur(1rem) saturate(1.35);
  box-shadow: 0 0.8rem 2.4rem rgba(0, 0, 0, 0.14);
  font-weight: 850;
}

.wp-block-button:not(.is-style-glass) .wp-block-button__link::after {
  content: "";
  display: block;
  flex: 0 0 auto;
  width: 0.52rem;
  height: 0.52rem;
  border-top: 0.13rem solid currentColor;
  border-right: 0.13rem solid currentColor;
  transform: rotate(45deg);
}

@media (max-width: 70rem) {
  .ixc-full-menu__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding-top: clamp(2rem, 5vw, 3rem);
  }
}

@media (max-width: 48rem) {
  .ixc-site-header {
    min-height: var(--ixc-header);
  }

  .ixc-full-menu__inner {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }

  .ixc-full-menu__col {
    gap: 0.9rem;
    padding-top: 1rem;
  }
}

/* Static reference parity: full menu returns to the cinematic dark-purple overlay. */
body.menu-open .ixc-site-header,
.ixc-site-header.is-menu-open {
  color: #fff;
  transform: translateY(0) !important;
  border-bottom-color: rgba(255, 255, 255, 0.12);
  background:
    radial-gradient(circle at 18% 0%, rgba(81, 36, 131, 0.34), transparent 34rem),
    linear-gradient(180deg, rgba(14, 7, 24, 0.92), rgba(14, 7, 24, 0.72));
}

body.menu-open .ixc-site-header .ixc-brand img.ixc-brand__mark--light,
.ixc-site-header.is-menu-open .ixc-brand img.ixc-brand__mark--light {
  display: block;
}

body.menu-open .ixc-site-header .ixc-brand img.ixc-brand__mark--dark,
.ixc-site-header.is-menu-open .ixc-brand img.ixc-brand__mark--dark {
  display: none;
}

body.menu-open .ixc-menu-toggle {
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: var(--ixc-radius);
}

body.menu-open .ixc-full-menu {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.1);
  background:
    radial-gradient(circle at 16% 10%, rgba(94, 43, 155, 0.38), transparent 38rem),
    linear-gradient(128deg, #1c0f2b 0%, #120a1d 48%, #050505 100%);
  box-shadow: none;
}

body.menu-open .ixc-full-menu__inner {
  width: min(100%, 92rem);
  max-width: calc(100vw - var(--ixc-edge) * 2);
  margin: 0 auto;
  padding-top: clamp(2.35rem, 4.2vw, 4.25rem);
}

body.menu-open .ixc-full-menu__col {
  border-top-color: rgba(255, 255, 255, 0.22);
}

body.menu-open .ixc-full-menu__col span {
  color: #c7a6ff;
}

body.menu-open .ixc-full-menu__title {
  color: #fff;
  font-size: clamp(1.75rem, 1.35vw + 1rem, 2.35rem);
  font-weight: 880;
  line-height: 1.08;
}

body.menu-open .ixc-full-menu__col a {
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(0.98rem, 0.22vw + 0.92rem, 1.12rem);
}

body.menu-open .ixc-full-menu__col a.ixc-full-menu__title {
  margin-bottom: clamp(1.25rem, 2vw, 2rem);
  color: #fff;
  font-size: clamp(1.8rem, 1.45vw + 1rem, 2.5rem);
  font-weight: 880;
  line-height: 1.06;
}

body.menu-open .ixc-full-menu__col a:hover,
body.menu-open .ixc-full-menu__col a:focus-visible {
  color: #fff;
  outline-color: rgba(255, 255, 255, 0.72);
}

body.menu-open .ixc-full-menu__col a:focus:not(:focus-visible) {
  outline: none;
}

/* Final deterministic interaction layer. Keeps closed menus out of layout and all buttons in one glass system. */
body.menu-open {
  overflow: hidden;
  background: #08020f;
}

body:not(.menu-open) .ixc-full-menu,
body:not(.menu-open) .ixc-full-menu.is-open {
  display: none !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

body.menu-open .ixc-full-menu {
  display: flex !important;
  height: calc(100svh - var(--ixc-header));
  overflow: hidden;
  opacity: 1 !important;
  pointer-events: auto !important;
}

body.menu-open .ixc-full-menu__inner {
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: thin;
}

.ixc-site-header:not(.is-menu-open):not(.is-solid) {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.12);
  background:
    linear-gradient(180deg, rgba(8, 5, 14, 0.78), rgba(8, 5, 14, 0.34)),
    rgba(8, 5, 14, 0.08);
}

.ixc-site-header.is-solid:not(.is-menu-open) {
  color: var(--ixc-ink);
  background: rgba(255, 255, 255, 0.78);
}

.wp-block-button .wp-block-button__link,
.ixc-glass-button,
.ixc-link-button {
  min-width: clamp(9.6rem, 10vw, 12.8rem);
  border: 1px solid rgba(255, 255, 255, 0.36) !important;
  border-radius: var(--ixc-radius) !important;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.06)) !important;
  backdrop-filter: blur(1rem) saturate(1.35);
  -webkit-backdrop-filter: blur(1rem) saturate(1.35);
}

.ixc-section:not(.is-dark) .wp-block-button .wp-block-button__link,
.ixc-article-shell .wp-block-button .wp-block-button__link,
.ixc-archive-shell .wp-block-button .wp-block-button__link {
  border-color: rgba(5, 5, 5, 0.16) !important;
  color: var(--ixc-ink) !important;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.5)) !important;
}

.ixc-footer-links {
  gap: 0.75rem 1.35rem;
  align-items: center;
}

.ixc-footer-links a {
  display: inline-flex;
  min-height: 2rem;
  align-items: center;
  text-decoration-thickness: 0.06rem;
  text-underline-offset: 0.22em;
}

@media (max-width: 70rem) {
  body.menu-open .ixc-full-menu__inner {
    padding-top: clamp(1.65rem, 4vw, 2.8rem);
  }
}

@media (max-width: 48rem) {
  .wp-block-button .wp-block-button__link,
  .ixc-glass-button,
  .ixc-link-button {
    min-width: 0;
  }
}

/* Closed-menu guard: this must remain after every open-menu override. */
.ixc-full-menu[hidden],
body:not(.menu-open) .ixc-full-menu,
body:not(.menu-open) .ixc-full-menu.is-open {
  display: none !important;
  height: 0 !important;
  max-height: 0 !important;
  overflow: hidden !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

body.menu-open .ixc-full-menu:not([hidden]) {
  top: 0 !important;
  bottom: 0 !important;
  height: 100vh !important;
  min-height: 100vh !important;
  max-height: none !important;
  visibility: visible !important;
}

body.menu-open .ixc-full-menu__inner {
  padding-top: calc(var(--ixc-header) + clamp(3rem, 5vw, 5.4rem)) !important;
}

.ixc-site-header:not(.is-menu-open):not(.is-solid) {
  background:
    linear-gradient(180deg, rgba(8, 5, 14, 0.84), rgba(8, 5, 14, 0.24)),
    rgba(8, 5, 14, 0.1);
  box-shadow: none;
}

.ixc-site-header.is-solid:not(.is-menu-open) {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(255, 255, 255, 0.58)),
    rgba(255, 255, 255, 0.62);
  box-shadow: none;
}