:root {
  --header-accent: #0071e3;
  --header-surface: #161618;
}

body > .site-header,
body > .site-head {
  z-index: 50;
  top: 0;
  left: 0;
  width: 100%;
  height: 56px;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Noto Sans SC Variable", sans-serif;
  background: var(--header-surface);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

body > .site-header { position: fixed; }
body > .site-head { position: sticky; }
body > .site-header.is-scrolled { height: 56px; background: var(--header-surface); -webkit-backdrop-filter: none; backdrop-filter: none; }

.site-header .brand,
.site-head .brand {
  flex: 0 0 auto;
  gap: 9px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -.025em;
}

.site-header .brand b,
.site-head .brand b { color: var(--header-accent); }
.site-header .brand-mark,
.site-head .brand-mark { width: 23px; height: 23px; opacity: .92; }
.site-header .brand-mark::before,
.site-head .brand-mark::before { width: 29px; }
.site-header .brand-mark::after,
.site-head .brand-mark::after { height: 29px; }
.site-header .brand-mark i,
.site-head .brand-mark i {
  width: 6px;
  height: 6px;
  background: var(--header-accent);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, .18);
}

.main-nav,
.site-nav {
  display: flex;
  align-items: center;
  gap: 25px;
  color: rgba(255, 255, 255, .76);
  font-size: 12px;
  font-weight: 550;
}

.main-nav > a,
.site-nav > a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: rgba(255, 255, 255, .76);
  border: 0;
  transition: color .16s ease, transform 90ms ease-out;
}

.main-nav > a:hover,
.site-nav > a:hover,
.main-nav > a[aria-current="page"],
.site-nav > a[aria-current="page"] { color: #fff; }
.main-nav > a:active,
.site-nav > a:active { transform: scale(.97); }

.site-header .language-menu summary,
.site-head .language-menu summary {
  gap: 6px;
  min-height: 44px;
  padding: 0 10px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 550;
}

.site-header .language-menu summary > span,
.site-head .language-menu summary > span { font-size: 9px; }

.site-header .language-menu summary::after,
.site-head .language-menu summary::after {
  content: '⌄';
  margin-top: -3px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 550;
}

.nav-cta,
.header-cta {
  flex: 0 0 auto;
  min-height: 34px;
  padding: 8px 14px;
  color: #fff;
  background: var(--header-accent);
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-size: 12px;
  font-weight: 650;
  cursor: pointer;
  transition: transform 90ms ease-out, background-color .16s ease;
}

.nav-cta:hover,
.header-cta:hover { background: #0077ed; }
.nav-cta:active,
.header-cta:active { transform: scale(.97); }
.nav-cta span { display: none; }

.site-header .menu-button,
.site-head .menu-button {
  display: none;
  z-index: 2;
  padding: 8px;
  color: #fff;
  background: none;
  border: 0;
  cursor: pointer;
}

.site-header .menu-button span,
.site-head .menu-button span {
  display: block;
  width: 22px;
  height: 1px;
  margin: 6px 0;
  background: currentColor;
  transition: transform .22s cubic-bezier(.22, 1, .36, 1), opacity .16s ease;
}

body.menu-open .menu-button span:first-child { transform: translateY(3.5px) rotate(45deg); }
body.menu-open .menu-button span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

@media (max-width: 1180px) {
  body > .site-header,
  body > .site-head { padding: 0 24px; }
  .main-nav,
  .site-nav { gap: 18px; }
}

@media (min-width: 981px) {
  body > .site-header > .main-nav,
  body > .site-head > .site-nav { background: transparent; }
}

@media (max-width: 980px) {
  body > .site-header,
  body > .site-head { height: 52px; min-height: 52px; padding: 0 18px; }
  .site-header.is-scrolled { height: 52px; }
  .site-header .menu-button,
  .site-head .menu-button { display: block; }
  .main-nav,
  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 22px;
    color: #fff;
    background: rgba(17, 18, 16, .98);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-14px);
    transition: opacity .2s ease, transform .28s cubic-bezier(.22, 1, .36, 1), visibility 0s linear .28s;
    font-size: 20px;
  }
  .main-nav.is-open,
  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    transition-delay: 0s;
  }
  .main-nav > a,
  .site-nav > a {
    display: inline-flex !important;
    min-height: 36px;
    color: rgba(255, 255, 255, .9);
  }
  .main-nav .language-menu summary,
  .site-nav .language-menu summary { font-size: 17px; }
  .main-nav .language-menu-popover,
  .site-nav .language-menu-popover {
    left: 50%;
    right: auto;
    transform: translate3d(-50%, -6px, 0) scale(.96);
    transform-origin: top center;
  }
  .main-nav .language-menu.is-visible .language-menu-popover,
  .site-nav .language-menu.is-visible .language-menu-popover { transform: translateX(-50%); }
  .nav-cta,
  .header-cta { padding: 10px 17px; font-size: 16px; }
  body.menu-open { overflow: hidden; }
  body.menu-open .site-header,
  body.menu-open .site-head { -webkit-backdrop-filter: none; backdrop-filter: none; }
}

@media (prefers-reduced-motion: reduce) {
  .main-nav, .site-nav, .menu-button span { transition-duration: .01ms !important; }
}

@media (prefers-reduced-transparency: reduce) {
  body > .site-header,
  body > .site-head { background: var(--header-surface); -webkit-backdrop-filter: none; backdrop-filter: none; }
  .main-nav,
  .site-nav { background: transparent; -webkit-backdrop-filter: none; backdrop-filter: none; }
}

@media (max-width: 980px) and (prefers-reduced-transparency: reduce) {
  .main-nav,
  .site-nav { background: var(--header-surface); }
}

@media (prefers-contrast: more) {
  .site-header, .site-head { background: #000; border-bottom-color: #fff; }
}