.site-header {
  position: relative;
  z-index: 100;
  border-bottom: 1px solid rgb(101 119 130 / 46%);
  background: rgb(7 21 34 / 96%);
  box-shadow: 0 8px 24px rgb(0 0 0 / 16%);
}

.site-header__inner {
  min-height: 5.25rem;
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  flex: 0 1 auto;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-paper-white);
  text-decoration: none;
}

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

.site-header__logo {
  width: 2.5rem;
  height: 2.5rem;
  flex: 0 0 2.5rem;
  object-fit: contain;
}

.site-header__brand-text,
.site-header__nav-brand {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-header__nav {
  display: flex;
  min-width: 0;
  flex: 1 1 auto;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-4);
}

.site-header__nav-head { display: none; }

.site-header__nav-list {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: clamp(0.6rem, 1.35vw, 1.2rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__nav-list li,
.site-header__nav-list li + li {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
}

.site-header__nav-list a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  border-bottom: 1px solid transparent;
  color: var(--color-paper-white);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__nav-list a:hover,
.site-header__nav-list a[aria-current="page"] {
  border-color: var(--color-amber-gold);
  color: var(--color-amber-light);
}

.site-header__nav-cta {
  flex: 0 0 auto;
  min-height: 2.75rem;
  padding-inline: 1rem;
  white-space: nowrap;
}

.site-header__nav-mobile-only { display: none !important; }

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 2.75rem;
  align-items: center;
  justify-content: center;
  gap: 0.28rem;
  padding: 0.5rem;
  border: 1px solid var(--color-metal-line);
  border-radius: var(--radius-control);
  background: var(--surface-panel);
  color: var(--color-paper-white);
}

.nav-toggle:hover { border-color: var(--color-ocean-cyan); background: var(--surface-raised); }

.nav-toggle__line {
  display: block;
  width: 1.25rem;
  height: 1px;
  background: currentColor;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) { transform: translateY(0.38rem) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) { transform: translateY(-0.38rem) rotate(-45deg); }

@media (max-width: 1100px) {
  .site-header__inner { min-height: 4.75rem; justify-content: space-between; }
  .site-header__logo { width: 2rem; height: 2rem; flex-basis: 2rem; }
  .site-header__brand-text { font-size: 0.8125rem; }
  .nav-toggle { display: inline-flex; }
  .site-header__nav {
    position: absolute;
    top: calc(100% + 1px);
    right: max(var(--container-padding), calc((100vw - var(--container-max)) / 2 + var(--container-padding)));
    left: max(var(--container-padding), calc((100vw - var(--container-max)) / 2 + var(--container-padding)));
    display: grid;
    max-height: calc(100vh - 5.5rem);
    overflow-y: auto;
    visibility: hidden;
    gap: var(--space-5);
    padding: var(--space-5);
    border: var(--border-subtle);
    border-top: 1px solid var(--color-amber-gold);
    border-radius: var(--radius-card);
    background: var(--surface-deep);
    box-shadow: var(--shadow-overlay);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.5rem);
    transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  }
  .site-header__nav.is-open { visibility: visible; opacity: 1; pointer-events: auto; transform: translateY(0); }
  .site-header__nav-head { display: block; padding-bottom: var(--space-3); border-bottom: var(--border-subtle); }
  .site-header__nav-list { display: grid; gap: 0; }
  .site-header__nav-list li,
  .site-header__nav-list li + li { display: block; border-bottom: 1px solid rgb(101 119 130 / 30%); }
  .site-header__nav-list a { width: 100%; min-height: 3rem; border-bottom: 0; font-size: var(--text-small); }
  .site-header__nav-list a:hover,
  .site-header__nav-list a[aria-current="page"] { color: var(--color-amber-light); }
  .site-header__nav-mobile-only { display: block !important; }
  .site-header__nav-cta { width: 100%; }
}

@media (max-width: 420px) {
  .site-header__inner { gap: var(--space-3); }
  .site-header__brand-text { font-size: 0.75rem; letter-spacing: 0.05em; }
}

@media (max-width: 360px) {
  .site-header__brand-text { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__nav,
  .nav-toggle__line { transition: none; }
}

ul { list-style: none !important; }

.nav-toggle {
  flex-direction: column;
}