.site-header {
  position: relative;
  z-index: 100;
  padding: 1.25rem var(--gutter) 0;
  pointer-events: none;
}

.site-header__shell {
  position: relative;
  display: flex;
  width: min(100%, var(--container-wide));
  min-height: 4.5rem;
  margin-inline: auto;
  padding: 0.625rem 0.75rem;
  align-items: center;
  gap: 1rem;
  border: var(--border-gold);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-floating);
  pointer-events: auto;
}

.site-header__shell::before,
.site-header__shell::after {
  position: absolute;
  width: 0.75rem;
  height: 0.75rem;
  border-color: var(--color-gold);
  content: "";
  opacity: 0.7;
}

.site-header__shell::before {
  top: 0.3rem;
  left: 0.3rem;
  border-top: 1px solid;
  border-left: 1px solid;
}

.site-header__shell::after {
  right: 0.3rem;
  bottom: 0.3rem;
  border-right: 1px solid;
  border-bottom: 1px solid;
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  flex: 0 1 17.5rem;
  align-items: center;
  gap: 0.625rem;
  color: var(--color-primary);
  line-height: 1;
  text-decoration: none;
}

.site-header__brand:hover { color: var(--color-primary-deep); text-decoration: none; }

.site-header__logo {
  width: 2.625rem;
  height: 2.625rem;
  flex: 0 0 2.625rem;
  object-fit: contain;
}

.site-header__brand-text {
  display: block;
  min-width: 0;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.035em;
  line-height: 1.15;
  white-space: nowrap;
}

.site-header__brand-text span { display: block; font-size: 0.78em; letter-spacing: 0.08em; }

.site-header__toggle {
  display: none;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0.4rem 0.55rem;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--color-gold);
  background: var(--color-surface);
  color: var(--color-primary);
}

.site-header__toggle-lines { display: grid; width: 1.15rem; gap: 0.22rem; }
.site-header__toggle-lines span { display: block; height: 2px; background: currentColor; transition: transform var(--transition-base), opacity var(--transition-base); }
.site-header__toggle-label { font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; }

.site-header__nav {
  display: flex;
  min-width: 0;
  flex: 1 1 auto;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.site-header__nav-list {
  display: flex;
  min-width: 0;
  margin: 0;
  padding: 0;
  align-items: center;
  gap: 0.15rem;
  list-style: none;
}

.site-header__nav-list li,
.site-header__nav-list li + li { margin: 0; padding: 0; }

.site-header__nav-list a {
  display: inline-flex;
  min-height: 2.5rem;
  padding: 0.625rem 0.5rem 0.5rem;
  align-items: center;
  border-bottom: 2px solid transparent;
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  line-height: 1.1;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-header__nav-list a:hover,
.site-header__nav-list a:focus-visible,
.site-header__nav-list a[aria-current="page"] { border-bottom-color: var(--color-gold); color: var(--color-primary-deep); text-decoration: none; }
.site-header__nav-list a[aria-current="page"] { font-weight: 700; }

.site-header__cta {
  display: inline-flex;
  min-height: 2.75rem;
  padding: 0.625rem 0.75rem;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-surface);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  line-height: 1.15;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.site-header__cta:hover { transform: translateY(-2px); background: var(--color-primary-deep); color: var(--color-surface); text-decoration: none; }

@media (max-width: 74rem) {
  .site-header__shell { min-height: 4.25rem; }
  .site-header__brand { flex-basis: 15rem; }
  .site-header__nav-list a { padding-inline: 0.34rem; font-size: 0.68rem; }
  .site-header__cta { font-size: 0.64rem; }
}

@media (max-width: 68.75rem) {
  .site-header { padding-top: 0; }
  .site-header__shell { width: 100%; min-height: 4.125rem; border-right: 0; border-left: 0; border-radius: 0; }
  .site-header__toggle { display: inline-flex; margin-left: auto; }
  .site-header__nav {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    display: grid;
    max-height: calc(100vh - 5.5rem);
    padding: 0.75rem;
    overflow-y: auto;
    border: var(--border-gold);
    border-radius: var(--radius-card);
    background: var(--color-surface);
    box-shadow: var(--shadow-floating);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.5rem);
    transition: opacity var(--transition-base), transform var(--transition-base);
  }
  .site-header__nav.is-open { opacity: 1; pointer-events: auto; transform: translateY(0); }
  .site-header__nav-list { display: grid; gap: 0.1rem; }
  .site-header__nav-list a { min-height: 2.75rem; padding: 0.75rem; border-bottom: 0; border-left: 2px solid transparent; font-size: var(--text-sm); }
  .site-header__nav-list a::before { margin-right: 0.5rem; color: var(--color-gold); content: "✦"; font-size: 0.7em; }
  .site-header__nav-list a:hover,
  .site-header__nav-list a:focus-visible,
  .site-header__nav-list a[aria-current="page"] { border-bottom-color: transparent; border-left-color: var(--color-gold); background: var(--color-surface-muted); }
  .site-header__cta { width: 100%; margin-top: 0.4rem; }
  .site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(1) { transform: translateY(0.3rem) rotate(45deg); }
  .site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(2) { opacity: 0; }
  .site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(3) { transform: translateY(-0.3rem) rotate(-45deg); }
}

@media (max-width: 30rem) {
  .site-header__shell { padding-inline: 0.65rem; gap: 0.5rem; }
  .site-header__brand { gap: 0.45rem; }
  .site-header__logo { width: 2.125rem; height: 2.125rem; flex-basis: 2.125rem; }
  .site-header__brand-text { font-size: 0.78rem; }
  .site-header__toggle-label { display: none; }
}

@media (prefers-reduced-motion: reduce) { .site-header__nav, .site-header__toggle-lines span { transition: none; } }