.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 120;
  padding: 6px 0 0;
  transition: padding 0.22s ease;
}

.site-header.is-compact {
  padding: 4px 0 0;
}

.site-header__shell {
  width: min(1000px, calc(100vw - 72px));
  min-height: 82px;
  margin: 0 auto;
  padding: 13px 28px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(7, 25, 46, 0.96), rgba(10, 36, 67, 0.9)),
    radial-gradient(circle at top left, rgba(22, 139, 255, 0.16), transparent 32%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  color: var(--color-white);
  box-shadow: 0 26px 72px rgba(5, 18, 34, 0.22);
  backdrop-filter: blur(26px);
  position: relative;
  z-index: 123;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  max-width: 100%;
  min-width: 0;
}

.site-brand__logo {
  width: 54px;
  height: 54px;
  object-fit: contain;
  filter: drop-shadow(0 0 18px rgba(43, 161, 255, 0.38));
}

.site-brand__copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.site-brand__copy strong {
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.site-brand__copy small {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.site-header__toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 0;
  padding: 0;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.09);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1), 0 16px 34px rgba(4, 13, 25, 0.16);
  position: relative;
  z-index: 125;
}

.site-header__toggle span:not(.screen-reader-text) {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--color-white);
  border-radius: 999px;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.site-header__backdrop {
  display: none;
}

.site-nav {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: min(1000px, calc(100vw - 72px));
  padding: 0 28px 0 300px;
  display: flex;
  justify-content: flex-end;
  z-index: 124;
  pointer-events: none;
  transition: top 0.22s ease;
}

.site-header.is-compact .site-nav {
  top: 16px;
}

.site-nav__list,
.site-nav__submenu {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__list {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  width: auto;
  margin-left: auto;
  gap: 24px;
  pointer-events: auto;
}

.site-nav__item {
  position: relative;
}

.site-nav__item > a,
.site-nav__item > .site-nav__label {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.96rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-nav__item > .site-nav__label {
  padding: 0;
  border: 0;
  background: transparent;
  cursor: default;
}

.site-nav__item:hover > a,
.site-nav__item:hover > .site-nav__label,
.site-nav__item:focus-within > .site-nav__label {
  color: #ffffff;
}

.site-nav__submenu {
  position: absolute;
  left: -18px;
  top: calc(100% + 10px);
  min-width: 250px;
  display: grid;
  gap: 8px;
  padding: 16px;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(7, 28, 52, 0.98), rgba(6, 22, 42, 0.98)),
    radial-gradient(circle at top left, rgba(32, 148, 255, 0.14), transparent 36%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 32px 60px rgba(6, 20, 38, 0.28);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}

.site-nav__submenu a {
  display: block;
  padding: 10px 12px;
  border-radius: 14px;
  color: rgba(255, 255, 255, 0.82);
}

.site-nav__submenu a:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
}

.site-nav__item:hover .site-nav__submenu,
.site-nav__item:focus-within .site-nav__submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  body.nav-open {
    overflow: hidden;
  }

  .site-header,
  .site-header.is-compact {
    padding: 0;
  }

  .site-header__shell {
    width: calc(100vw - 10px);
    min-height: 64px;
    padding: 8px 14px 10px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 42px;
    gap: 10px;
    border-radius: 0 0 24px 24px;
  }

  .site-brand__logo {
    width: 40px;
    height: 40px;
  }

  .site-brand {
    gap: 10px;
  }

  .site-brand__copy strong {
    font-size: 0.94rem;
  }

  .site-brand__copy small {
    display: none;
  }

  .site-header__toggle {
    display: inline-block;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    justify-self: end;
  }

  .site-header__toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .site-header__toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .site-header__toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .site-header__backdrop {
    display: block;
    position: fixed;
    inset: 0;
    border: 0;
    background: rgba(4, 14, 27, 0.46);
    backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    z-index: 121;
  }

  body.nav-open .site-header__backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .site-nav {
    position: fixed;
    top: 0;
    left: 5px;
    right: 5px;
    width: auto;
    max-height: 100dvh;
    margin: 0;
    padding: 74px 16px 18px;
    overflow: auto;
    transform: none;
    background:
      linear-gradient(180deg, rgba(8, 31, 56, 0.98), rgba(12, 43, 76, 0.97)),
      radial-gradient(circle at top left, rgba(31, 145, 255, 0.14), transparent 34%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0 0 28px 28px;
    box-shadow: 0 28px 80px rgba(5, 18, 35, 0.28);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    z-index: 122;
    display: block;
  }

  body.nav-open .site-header__shell {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    width: auto;
    gap: 2px;
  }

  .site-nav__item > a,
  .site-nav__item > .site-nav__label {
    min-height: 44px;
    padding: 6px 4px;
    font-size: 0.98rem;
    font-weight: 700;
  }

  .site-nav__submenu {
    position: static;
    min-width: 100%;
    margin-top: 6px;
    padding: 12px;
    border-radius: 22px;
    background: rgba(5, 21, 39, 0.74);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
    transform: none;
    transition: none;
  }

  .site-nav.is-open .site-nav__submenu {
    opacity: 1;
    visibility: visible;
  }

  .site-nav__submenu a {
    padding: 11px 12px;
    font-size: 1rem;
  }

  .site-nav__item:hover .site-nav__submenu {
    transform: none;
  }
}

body.admin-bar .site-header {
  top: 32px;
}

@media (max-width: 782px) {
  body.admin-bar .site-header {
    top: 46px;
  }

  body.admin-bar .site-nav {
    top: 46px;
    max-height: calc(100dvh - 46px);
  }
}