.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--page-gutter);
  border-bottom: 1px solid var(--soft-line);
  background: rgba(10, 10, 10, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.site-header--home {
  border-color: rgba(255, 255, 255, 0.16);
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.56), transparent);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.brand {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  width: max-content;
}

.brand-name {
  font-size: clamp(15px, 1.25vw, 19px);
  font-weight: 600;
  letter-spacing: 0.015em;
  line-height: 1.2;
}

.brand-tagline {
  margin-top: 5px;
  color: rgba(244, 242, 237, 0.72);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.header-actions,
.primary-nav,
.menu-toggle,
.menu-close {
  display: flex;
  align-items: center;
}

.header-actions {
  gap: clamp(24px, 4vw, 62px);
}

.primary-nav {
  gap: clamp(18px, 2.3vw, 36px);
}

.primary-nav a {
  position: relative;
  padding: 9px 0;
  color: rgba(244, 242, 237, 0.72);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.primary-nav a::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 1px;
  transform: scaleX(0);
  transform-origin: right;
  background: currentColor;
  content: "";
  transition: transform 250ms var(--ease-out);
}

.primary-nav a:hover,
.primary-nav a[aria-current="page"] {
  color: var(--text);
}

.primary-nav a:hover::after,
.primary-nav a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.external-mark {
  display: inline-block;
  margin-left: 4px;
  font-size: 10px;
}

.menu-toggle,
.menu-close {
  min-width: 72px;
  justify-content: space-between;
  gap: 13px;
  padding: 10px 0;
  background: transparent;
  cursor: pointer;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.menu-toggle i,
.menu-toggle i::before,
.menu-close i,
.menu-close i::before {
  display: block;
  width: 22px;
  height: 1px;
  background: currentColor;
  content: "";
  transition: transform 250ms var(--ease-out);
}

.menu-toggle i::before {
  transform: translateY(6px);
}

.menu-toggle:hover i::before {
  transform: translateY(4px);
}

.menu-close i {
  transform: rotate(45deg);
}

.menu-close i::before {
  transform: rotate(90deg);
}

.menu-overlay {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: grid;
  visibility: hidden;
  width: 100%;
  max-width: none;
  height: 100%;
  max-height: none;
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 24px var(--page-gutter) 28px;
  border: 0;
  grid-template-rows: auto 1fr auto;
  opacity: 0;
  background: rgba(8, 8, 8, 0.96);
  color: var(--text);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: opacity 360ms ease;
}

.menu-overlay:not([open]) {
  display: none;
}

.menu-overlay::backdrop {
  background: transparent;
}

.menu-overlay.is-open {
  visibility: visible;
  opacity: 1;
}

.menu-overlay__top,
.menu-overlay__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.menu-overlay__top {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.menu-overlay__top p,
.menu-overlay__footer {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.menu-overlay__content {
  display: grid;
  align-content: center;
  padding: clamp(30px, 5vh, 70px) 0;
  grid-template-columns: minmax(0, 1.6fr) minmax(220px, 0.4fr);
  gap: clamp(50px, 10vw, 180px);
}

.menu-categories,
.menu-primary {
  display: flex;
  flex-direction: column;
}

.menu-categories a {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: clamp(3px, 0.5vh, 8px) 0;
  color: rgba(244, 242, 237, 0.54);
  font-size: clamp(28px, 4.2vw, 68px);
  font-weight: 300;
  letter-spacing: -0.045em;
  line-height: 1.02;
  transition: color 200ms ease, transform 300ms var(--ease-out);
}

.menu-categories a span {
  width: 20px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.menu-categories a:hover,
.menu-categories a[aria-current="page"] {
  transform: translateX(8px);
  color: var(--text);
}

.menu-primary {
  align-self: center;
}

.menu-primary a {
  padding: 12px 0;
  border-bottom: 1px solid var(--soft-line);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.menu-primary a:hover,
.menu-primary a[aria-current="page"] {
  color: var(--text);
}

.menu-overlay__footer {
  padding-top: 20px;
  border-top: 1px solid var(--line);
}