.site-header {
  position: sticky;
  top: var(--ribbon-height);
  z-index: 70;
  background: rgba(250, 249, 246, 0.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(10, 25, 47, 0.06);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.rt-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.rt-brand__icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: radial-gradient(circle at 20% 0%, rgba(212, 175, 55, 0.5), transparent 50%), #0A192F;
  color: #FAF9F6;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  border: 1px solid rgba(212, 175, 55, 0.7);
  box-shadow: 0 12px 30px rgba(10, 25, 47, 0.55);
}

.rt-brand__text-main {
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.rt-brand__text-sub {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(74, 85, 104, 0.9);
}

.primary-nav {
  position: relative;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--font-body);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.nav-link {
  position: relative;
  padding-bottom: 3px;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(to right, #D4AF37, #C87D55);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link--active::after {
  width: 100%;
}

.nav-link--accent {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid rgba(212, 175, 55, 0.6);
  background: linear-gradient(135deg, rgba(10, 25, 47, 0.98), #1C3258);
  color: #FAF9F6;
  box-shadow: 0 12px 35px rgba(10, 25, 47, 0.4);
}

.nav-link--accent::after {
  display: none;
}

.nav-link--accent:hover,
.nav-link--accent:focus-visible {
  background: linear-gradient(135deg, #0C2340, #233864);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid rgba(10, 25, 47, 0.1);
  background: rgba(250, 249, 246, 0.8);
}

.nav-toggle span {
  width: 18px;
  height: 1.5px;
  border-radius: 999px;
  background-color: #0A192F;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle:focus-visible {
  outline: none;
  box-shadow: var(--shadow-outline);
}

@media (max-width: 1080px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: flex;
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 16px;
    border-radius: 16px;
    background: rgba(250, 249, 246, 0.98);
    border: 1px solid rgba(10, 25, 47, 0.08);
    box-shadow: var(--shadow-subtle);
    min-width: 220px;
    transform-origin: top right;
    transform: scale(0.96);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
  }

  .nav-links.is-open {
    transform: scale(1);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link--accent {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .site-header { top: var(--ribbon-height); }
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(3px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  transform: translateY(-3px) rotate(-45deg);
}

@media (max-width: 520px) {
  .nav-inner { padding-inline: 14px; }
  .rt-brand__text-sub { display: none; }
  .rt-brand__text-main { font-size: 0.9rem; }
}