:root {
  --site-header-height: 4.5rem;
}

.site-header {
  position: relative;
  z-index: 1200;
  min-height: var(--site-header-height);
}

.site-header__bar {
  position: fixed;
  z-index: 1200;
  top: 0;
  right: 0;
  left: 0;
  min-height: var(--site-header-height);
  border-block-end: 1px solid var(--color-violet-700);
  background: rgba(9, 7, 13, 0.94);
  backdrop-filter: blur(12px);
}

.site-header::after {
  display: block;
  height: var(--site-header-height);
  content: "";
}

.site-header__grid {
  display: grid;
  min-height: var(--site-header-height);
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-4);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  min-height: 44px;
  align-items: center;
  justify-self: center;
  gap: 0.55rem;
  color: var(--color-white-100);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-header__brand:hover { color: var(--color-white-100); }

.site-header__logo {
  width: 2.375rem;
  height: 2.375rem;
  flex: 0 0 auto;
  object-fit: contain;
}

.site-header__brand-short { display: none; }

.site-header__desktop-nav {
  min-width: 0;
}

.site-header__desktop-nav--right { justify-self: end; }

.site-header__desktop-nav ul,
.site-header__mobile-nav ul {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__desktop-nav ul { gap: clamp(0.75rem, 1.8vw, 1.5rem); }

.site-header__desktop-nav li,
.site-header__mobile-nav li,
.site-header__desktop-nav li + li,
.site-header__mobile-nav li + li {
  margin: 0;
  padding: 0;
}

.site-header__desktop-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--color-white-100);
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.075em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-header__desktop-nav a::after {
  width: 0;
  height: 2px;
  margin-inline-start: 0.35rem;
  background: var(--color-fuchsia-500);
  content: "";
  transition: width var(--transition-ui);
}

.site-header__desktop-nav a:hover,
.site-header__desktop-nav a:focus-visible { color: var(--color-lime-400); }
.site-header__desktop-nav a:hover::after,
.site-header__desktop-nav a:focus-visible::after,
.site-header__desktop-nav a[aria-current="page"]::after { width: 0.55rem; }
.site-header__desktop-nav a[aria-current="page"] { color: var(--color-fuchsia-500); }

.site-header__toggle {
  display: none;
  width: 44px;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  justify-self: end;
  padding: 0;
  background: transparent;
  color: var(--color-white-100);
}

.site-header__toggle-line {
  position: absolute;
  width: 21px;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition-ui), opacity var(--transition-ui), color var(--transition-ui);
}

.site-header__toggle-line:nth-child(1) { transform: translateY(-7px); }
.site-header__toggle-line:nth-child(3) { transform: translateY(7px); }
.site-header__toggle[aria-expanded="true"] { color: var(--color-lime-400); }
.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) { transform: rotate(45deg); }
.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(2) { opacity: 0; }
.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(3) { transform: rotate(-45deg); }

.site-header__mobile-nav {
  position: fixed;
  z-index: 1190;
  inset: var(--site-header-height) 0 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--color-ink-950);
}

.site-header__mobile-nav[hidden] { display: none !important; }

.site-header__mobile-inner {
  display: flex;
  width: min(100%, 42rem);
  min-height: 100%;
  flex-direction: column;
  gap: var(--space-6);
  margin-inline: auto;
  padding: var(--space-8) var(--header-padding-inline) var(--space-12);
}

.site-header__mobile-label {
  margin: 0;
  color: var(--color-lime-400);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.2;
  text-transform: uppercase;
}

.site-header__mobile-nav ul {
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  border-block: var(--border-subtle);
}

.site-header__mobile-nav li { border-block-end: var(--border-subtle); }
.site-header__mobile-nav li:last-child { border-block-end: 0; }

.site-header__mobile-nav a:not(.button) {
  display: flex;
  min-height: 48px;
  align-items: center;
  padding-block: var(--space-3);
  color: var(--color-white-100);
  font-family: var(--font-heading);
  font-size: clamp(1rem, 4vw, 1.375rem);
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
}

.site-header__mobile-nav a:not(.button):hover,
.site-header__mobile-nav a:not(.button):focus-visible { color: var(--color-lime-400); }
.site-header__mobile-contact { align-self: flex-start; }

body.site-header-menu-open { overflow: hidden; }

@media (max-width: 1099px) {
  .site-header__desktop-nav { display: none; }
  .site-header__grid { grid-template-columns: 1fr auto 1fr; }
  .site-header__toggle { display: inline-flex; position: relative; }
}

@media (max-width: 479px) {
  :root { --site-header-height: 4rem; }
  .site-header__brand { font-size: 0.8125rem; letter-spacing: 0.07em; }
  .site-header__logo { width: 2.125rem; height: 2.125rem; }
  .site-header__brand-full { display: none; }
  .site-header__brand-short { display: inline; }
  .site-header__mobile-contact { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__toggle-line,
  .site-header__desktop-nav a::after { transition: none; }
}