.site-header {
  position: fixed;
  top: var(--ribbon-height);
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 50;
  background: radial-gradient(circle at 0 0, #fff 0, #fafafa 30%, #f5f0e6 70%, #efe8dc 100%);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(142, 120, 93, 0.2);
  box-shadow: 0 18px 40px rgba(15, 11, 7, 0.06);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-9);
}

.primary-nav {
  display: flex;
  align-items: center;
}

.primary-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  margin: 0;
  padding: 0;
}

.primary-nav__item {
  list-style: none;
}

.primary-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0.25rem 0;
}

.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 1px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(212, 175, 55, 0), rgba(197, 139, 88, 0.9), rgba(212, 175, 55, 0));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-medium);
}

.primary-nav__link:focus-visible,
.primary-nav__link:hover {
  color: var(--color-text);
}

.primary-nav__link:hover::after,
.primary-nav__link:focus-visible::after {
  transform: scaleX(1);
}

.primary-nav__item--cta .primary-nav__link--cta {
  padding: 0.45rem 1.3rem;
  border-radius: 999px;
  border: 1px solid rgba(197, 139, 88, 0.75);
  background: radial-gradient(circle at 0 0, #fff 0, #f7ecdf 48%, #e7ccaa 100%);
  box-shadow: 0 14px 30px rgba(15, 11, 7, 0.18);
  color: var(--color-text);
  font-weight: 600;
}

.primary-nav__item--cta .primary-nav__link--cta::after {
  display: none;
}

.primary-nav__item--cta .primary-nav__link--cta:hover,
.primary-nav__item--cta .primary-nav__link--cta:focus-visible {
  background: radial-gradient(circle at 0 0, #fff 0, #f4e3d2 40%, #e1c199 100%);
  border-color: #c58b58;
  color: var(--color-text);
}

.rt-ribbon {
  top: 0;
}

.rt-ribbon__inner {
  justify-content: center;
}

.nav-toggle {
  display: none;
}

@media (max-width: 960px) {
  .primary-nav__list {
    position: absolute;
    top: calc(100% + var(--space-4));
    right: var(--space-4);
    bottom: auto;
    left: var(--space-4);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
    padding: var(--space-9);
    border-radius: var(--radius-lg);
    background: radial-gradient(circle at 0 0, #fff 0, #fafafa 45%, #f5f0e6 100%);
    box-shadow: var(--shadow-soft);
    max-width: 360px;
    max-height: calc(100dvh - var(--ribbon-height) - var(--nav-height) - var(--space-9));
    overflow-y: auto;
    margin: 0 auto;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-medium), transform var(--transition-medium), visibility var(--transition-medium);
  }

  .primary-nav--open .primary-nav__list {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .site-header__inner {
    gap: var(--space-6);
  }
}

@media (max-width: 720px) {
  .primary-nav__list {
    left: var(--space-4);
    right: var(--space-4);
    max-width: none;
  }

  .rt-ribbon__inner {
    justify-content: flex-start;
  }
}

@media (max-width: 480px) {
  :root {
    --ribbon-height: 48px;
  }

  .rt-ribbon {
    position: fixed;
    height: var(--ribbon-height);
    padding: 4px var(--layout-gutter);
  }

  .rt-ribbon__inner {
    font-size: 0.62rem;
    line-height: 1.35;
    letter-spacing: 0.1em;
  }

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

  .site-header__inner {
    gap: var(--space-5);
  }

  .site-header .rt-brand {
    min-width: 0;
    gap: var(--space-4);
  }

  .site-header .rt-brand__lockup {
    min-width: 0;
  }

  .site-header .rt-brand__title {
    font-size: 0.95rem;
    letter-spacing: 0.14em;
  }

  .site-header .rt-brand__tagline {
    font-size: 0.6rem;
    line-height: 1.35;
    letter-spacing: 0.1em;
  }

  .site-header .rt-brand__monogram {
    flex: 0 0 34px;
  }

  .nav-toggle {
    flex: 0 0 36px;
  }

  .layout-shell {
    padding-top: calc(var(--ribbon-height) + var(--nav-height));
  }
}

@media (max-width: 340px) {
  :root {
    --ribbon-height: 56px;
  }

  .site-header .rt-brand__tagline {
    display: none;
  }
}