/* Shared masthead: transparent over selected heroes; a navy band elsewhere. */
.header,
.header.scrolled {
  top: 0;
  padding-block: 12px;
  isolation: isolate;
  transition: none;
}
.header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: #102638;
  border-bottom: 1px solid #a7c4d92b;
  box-shadow: 0 8px 28px #03111f28;
  opacity: 1;
  pointer-events: auto;
  transition: opacity 200ms ease;
}
.home-page .header:not(.scrolled)::before,
.header-over-hero .header:not(.scrolled)::before {
  opacity: 0;
  pointer-events: none;
}
.header .nav {
  width: min(1530px, calc(100% - 48px));
  gap: 12px;
  height: 72px;
  align-items: center;
}
.header .nav-shell,
.header.scrolled .nav-shell {
  flex: 1;
  gap: 24px;
  background: transparent;
  box-shadow: none;
  border-radius: 0;
}
.header .brand {
  display: flex;
  align-items: center;
  gap: 13px;
  width: 261px;
  flex-shrink: 0;
  height: 72px;
  min-height: 72px;
  padding: 5px 10px;
  position: relative;
  border: 1px solid transparent;
  border-radius: 9px;
  /* Fine horizontal grain, broad reflections, and a polished silver edge. */
  background:
    repeating-linear-gradient(0deg, #ffffff00 0px, #ffffff00 1px, #3546570d 1px, #3546570d 2px, #ffffff24 2px, #ffffff24 3px) padding-box,
    linear-gradient(112deg, #ffffff00 8%, #ffffff80 24%, #ffffff00 41%, #6477851a 61%, #ffffff70 79%, #ffffff00 95%) padding-box,
    linear-gradient(180deg, #f1f4f6 0%, #c8d0d6 22%, #e5eaee 44%, #acb7c0 51%, #d8e0e6 60%, #f0f3f5 84%, #bcc6ce 100%) padding-box,
    linear-gradient(135deg, #fff 0%, #e2e8ed 24%, #667786 49%, #f8fcff 74%, #7c8b97 100%) border-box;
  box-shadow:
    0 2px 0 #63717d,
    0 8px 24px #03111f4a,
    inset 0 1px 1px #fff,
    inset 0 -2px 2px #34445138;
  transition: box-shadow 200ms;
}
.header .brand > img {
  display: block;
  width: 100%;
  height: 60px;
  object-fit: contain;
  object-position: center;
}
.header .brand::before {
  content: "";
  position: absolute;
  inset: 2px;
  border: 1px solid;
  border-color: #ffffffc9 #8998a240 #52636f55 #ffffffe0;
  border-radius: 6px;
  pointer-events: none;
}
.header .brand:hover {
  box-shadow:
    0 2px 0 #63717d,
    0 10px 28px #03111f59,
    inset 0 1px 2px #fff,
    inset 0 -2px 2px #34445138;
}
.header .brand:focus-visible {
  outline: 3px solid #8cc8ff;
  outline-offset: 4px;
}

.header #navigation {
  display: flex;
  position: static;
  flex-direction: row;
  align-items: center;
  flex-shrink: 0;
  width: auto;
  height: 60px;
  margin-left: auto;
  min-height: 60px;
  padding: 6px;
  gap: 2px;
  background: #102638f5;
  color: #f0f5fa;
  border: 1px solid #a7c4d92b;
  border-radius: 9px;
  box-shadow: 0 8px 32px #03111f28;
}
.header #navigation > a:not(.btn),
.header #navigation .capabilities-link,
.header #navigation .about-link,
.header #navigation .materials-link {
  padding: 10px 15px;
  white-space: nowrap;
  min-height: 44px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  border-radius: 5px;
  transition:
    background 180ms,
    color 180ms;
}
.header #navigation > .capabilities-nav,
.header #navigation > .about-nav,
.header #navigation > .materials-nav {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: 0;
}
.header #navigation .capabilities-link,
.header #navigation .about-link,
.header #navigation .materials-link {
  display: flex;
  align-items: center;
  position: relative;
  padding-right: 4px;
  color: inherit;
  white-space: nowrap;
}
.header #navigation .pages-toggle,
.header #navigation .about-toggle,
.header #navigation .materials-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  min-height: 44px;
  padding: 0;
  gap: 0;
  background: transparent;
  border-radius: 5px;
  color: inherit;
  font-size: 16px;
  line-height: 1;
  transition:
    background 180ms,
    color 180ms;
}
.header #navigation .capabilities-link:focus-visible,
.header #navigation .pages-toggle:focus-visible,
.header #navigation .about-link:focus-visible,
.header #navigation .about-toggle:focus-visible,
.header #navigation .materials-link:focus-visible,
.header #navigation .materials-toggle:focus-visible {
  outline: 2px solid #b7d9f5;
  outline-offset: -2px;
}
/* Consistent slim chevrons retain the existing 44px menu targets. */
.header .pages-toggle > span,
.header .about-toggle > span,
.header .materials-toggle > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  font-size: 0;
  line-height: 1;
  transition: transform 160ms ease;
}
.header .nav-chevron {
  display: block;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.header .pages-toggle[aria-expanded="true"] > span,
.header .about-toggle[aria-expanded="true"] > span,
.header .materials-toggle[aria-expanded="true"] > span {
  transform: rotate(180deg);
}
.header .menu-toggle,
.header #navigation > .mobile-quote {
  display: none;
}
.header #navigation > a:not(.btn):hover,
.header #navigation > a[aria-current],
.header #navigation .capabilities-link:hover,
.header #navigation .capabilities-link[aria-current],
.header #navigation .pages-toggle:hover,
.header #navigation .pages-toggle[aria-expanded="true"],
.header #navigation .about-link:hover,
.header #navigation .about-link[aria-current],
.header #navigation .about-toggle:hover,
.header #navigation .about-toggle[aria-expanded="true"],
.header #navigation .materials-link:hover,
.header #navigation .materials-link[aria-current],
.header #navigation .materials-toggle:hover,
.header #navigation .materials-toggle[aria-expanded="true"] {
  background: #ffffff12;
  color: #fff;
}
.header #navigation > a:not(.btn)::after,
.header #navigation .capabilities-link::after,
.header #navigation .about-link::after,
.header #navigation .materials-link::after {
  content: "";
  position: absolute;
  width: 0;
  background: #9cb5cf;
  transition: width 0.25s;
  left: 15px;
  bottom: 8px;
  height: 1px;
}
.header #navigation > a:hover::after,
.header #navigation > a[aria-current]::after {
  width: calc(100% - 30px);
}
.header #navigation .capabilities-link:hover::after,
.header #navigation .capabilities-link[aria-current]::after,
.header #navigation .about-link:hover::after,
.header #navigation .about-link[aria-current]::after,
.header #navigation .materials-link:hover::after,
.header #navigation .materials-link[aria-current]::after {
  width: calc(100% - 19px);
}
.header .site-quote {
  margin-left: 0;
  flex-shrink: 0;
  width: 180px;
  height: 60px;
  min-height: 60px;
  padding: 16px 21px;
  font-size: 16px;
  line-height: 1.5;
  gap: 0;
  justify-content: center;
  text-align: center;
  border: 1px solid #dc35405c;
  border-radius: 9px;
  box-shadow: 0 8px 28px #07141d30;
}
.header .site-quote .button-label,
.header #navigation > .mobile-quote {
  font-size: 16px;
  line-height: 1.5;
  white-space: nowrap;
}
.header .capabilities-panel {
  left: var(--capabilities-left, 0px);
  right: auto;
  top: 84px;
  border-radius: 12px;
  padding: 30px;
  border-top: 3px solid var(--blue);
  box-shadow: 0 18px 55px #07141d30;
}
.header .capability-group a {
  font-size: 16px;
  line-height: 1.5;
  padding: 10px 8px;
  margin-left: -8px;
  transition:
    background 180ms,
    color 180ms;
}
.header .capability-group a:hover {
  background: #edf4fa;
}
.header .capability-overview > a {
  display: block;
  font-size: 16px;
  line-height: 1.5;
  text-transform: none;
}
.header .capabilities-panel .eyebrow {
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0.035em;
}
.header .capability-group small {
  display: inline-block;
  margin-left: 5px;
  padding: 2px 5px;
  border-radius: 3px;
  background: #eaf0f5;
  color: #486477;
  font-size: 14px;
  line-height: 1.25;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.header .nav:has(.pages-toggle[aria-expanded="true"])::after {
  left: var(--capabilities-left, 0px);
  right: auto;
  top: 64px;
  height: 21px;
}
.header .scroll-progress {
  bottom: 0;
  opacity: 0.65;
}

.header .about-nav,
.header .materials-nav {
  position: relative;
}
.header .about-panel,
.header .materials-panel {
  position: absolute;
  top: calc(100% + 20px);
  left: 0;
  width: 270px;
  padding: 12px;
  background: #fff;
  color: var(--ink);
  border-top: 3px solid var(--blue);
  border-radius: 10px;
  box-shadow: 0 18px 55px #07141d30;
}
.header .about-panel[hidden],
.header .materials-panel[hidden] {
  display: none;
}
.header .about-panel a,
.header .materials-panel a {
  display: block;
  padding: 13px 12px;
  border-radius: 5px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
}
.header .about-panel a:hover,
.header .about-panel a[aria-current],
.header .materials-panel a:hover,
.header .materials-panel a[aria-current] {
  background: #edf4fa;
  color: var(--blue);
}
.header .about-panel a:focus-visible,
.header .materials-panel a:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}
.header .about-nav:has(.about-toggle[aria-expanded="true"])::after,
.header .materials-nav:has(.materials-toggle[aria-expanded="true"])::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 21px;
}

/* The desktop links sit directly over the hero or the shared band.
   The open mobile menu keeps its opaque panel for legibility. */
@media (min-width: 1341px) {
  .header #navigation {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
  }
}

@media (min-width: 1341px) and (max-width: 1500px) {
  .header .brand { width: 220px; }
  .header .nav-shell, .header.scrolled .nav-shell { gap: 14px; }
  .header .site-quote { width: 160px; padding-inline: 10px; }
  .header .nav { gap: 10px; }
  .header #navigation > a:not(.btn),
  .header #navigation .about-link,
  .header #navigation .capabilities-link,
.header #navigation .materials-link {  padding-inline: 10px; }
  .header #navigation .about-link,
  .header #navigation .capabilities-link,
.header #navigation .materials-link {  padding-right: 2px; }
  .header #navigation > a:not(.btn)::after,
  .header #navigation .about-link::after,
  .header #navigation .capabilities-link::after,
.header #navigation .materials-link::after {  left: 10px; }
  .header #navigation > a:hover::after,
  .header #navigation > a[aria-current]::after { width: calc(100% - 20px); }
  .header #navigation .about-link:hover::after,
  .header #navigation .about-link[aria-current]::after,
  .header #navigation .capabilities-link:hover::after,
  .header #navigation .capabilities-link[aria-current]::after,
.header #navigation .materials-link:hover::after,
.header #navigation .materials-link[aria-current]::after {  width: calc(100% - 12px); }
}

@media (max-width: 1340px) {
  .header .brand > img {
    height: 52px;
  }
  .header .nav {
    height: 64px;
    gap: 0;
  }
  .header .nav-shell,
  .header.scrolled .nav-shell {
    height: 64px;
    justify-content: space-between;
    gap: 12px;
  }
  .header .brand {
    width: 244px;
    height: 64px;
    min-height: 64px;
    padding: 5px 10px;
    gap: 12px;
  }

  .header .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 11px;
    min-height: 54px;
    padding: 12px 17px;
    border: 1px solid #a7c4d938;
    border-radius: 9px;
    background: #102638f5;
    color: #fff;
    box-shadow: 0 6px 24px #07141d20;
    font-size: 16px;
    line-height: 1.5;
    flex-shrink: 0;
    pointer-events: auto;
  }
  .header .site-quote {
    display: none;
  }
  .header #navigation {
    display: none;
    position: absolute;
    flex-direction: column;
    align-items: stretch;
    height: auto;
    top: 76px;
    left: auto;
    right: 0;
    width: min(560px, 100%);
    margin: 0;
    min-height: 0;
    max-height: calc(100dvh - 112px);
    overflow-y: auto;
    padding: 14px;
    gap: 2px;
    border-radius: 12px;
  }
  .header #navigation.open {
    display: flex;
  }
  .header #navigation .capabilities-link,
  .header #navigation .about-link,
.header #navigation .materials-link {
    flex: 1;
  }
  .header #navigation .pages-toggle,
  .header #navigation .about-toggle,
.header #navigation .materials-toggle {
    height: 48px;
    min-height: 48px;
  }
  .header #navigation > .mobile-quote {
    display: inline-flex;
    justify-content: center;
    min-height: 52px;
    margin-top: 12px;
    padding: 14px 21px;
  }
  .header #navigation > a:not(.btn),
  .header #navigation .capabilities-link,
  .header #navigation .about-link,
.header #navigation .materials-link {
    padding: 12px;
    font-size: 16px;
  }
  .header #navigation > a:not(.btn)::after,
  .header #navigation .capabilities-link::after,
  .header #navigation .about-link::after,
.header #navigation .materials-link::after {
    content: none;
  }
  .header .pages-panel.capabilities-panel {
    position: static;
    width: 100%;
    max-height: none;
    overflow: visible;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    margin: 5px 0 8px;
    padding: 22px;
    border-radius: 7px;
    box-shadow: none;
  }
  .header .capabilities-panel > div:first-child {
    display: block;
  }
  .header .capability-overview {
    grid-column: 1 / -1;
    border-left: 0;
    border-top: 1px solid #dce5ed;
    padding: 20px 0 0;
  }
  .header .nav:has(.pages-toggle[aria-expanded="true"])::after {
    display: none;
  }
  .header #navigation > .about-nav,
.header #navigation > .materials-nav {
    flex-wrap: wrap;
  }
  .header .about-panel,
.header .materials-panel {
    position: static;
    flex: 0 0 100%;
    width: 100%;
    margin: 5px 0 8px;
    box-shadow: none;
    border-radius: 7px;
  }
  .header .about-nav:has(.about-toggle[aria-expanded="true"])::after,
.header .materials-nav:has(.materials-toggle[aria-expanded="true"])::after {
    display: none;
  }
}

@media (max-width: 580px) {
  .header .nav {
    width: calc(100% - 28px);
  }
  .header .brand {
    width: 208px;
    gap: 9px;
    padding: 5px 8px;
    flex-shrink: 1;
    min-width: 0;
  }

  .header .menu-toggle {
    min-height: 48px;
    padding: 10px 13px;
    font-size: 16px;
    gap: 7px;
  }
  .header .menu-toggle > span {
    font-size: 16px;
  }
  .header #navigation {
    max-height: calc(100dvh - 105px);
  }
  .header .pages-panel.capabilities-panel {
    padding: 18px;
    grid-template-columns: 1fr;
  }
}

@media (max-width: 360px) {
  .header .brand {
    width: 196px;
    padding-inline: 6px;
    gap: 7px;
  }
  .header .menu-toggle {
    padding-inline: 10px;
    gap: 5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .header::before,
  .header .brand,
  .header #navigation > a,
  .header #navigation .capabilities-link,
  .header #navigation .pages-toggle,
  .header #navigation .about-link,
  .header #navigation .about-toggle,
  .header .pages-toggle > span,
  .header .about-toggle > span,  .header .capability-group a,
.header #navigation .materials-link,
.header #navigation .materials-toggle,
.header .materials-toggle > span {
    transition: none;
  }
}