/* Site header: fixed nav + off-canvas mobile menu */

.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color 0.5s var(--ease-standard), border-color 0.5s var(--ease-standard), box-shadow 0.5s var(--ease-standard);
}
.site-nav.is-scrolled {
  background-color: rgba(8, 8, 8, 0.95);
  backdrop-filter: blur(12px);
  border-bottom-color: rgba(201, 168, 76, 0.1);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.site-nav__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}
@media (min-width: 1024px) { .site-nav__inner { padding-inline: 2rem; } }

.brand { display: flex; align-items: center; gap: 0.75rem; }
.brand__mark {
  width: 2.5rem; height: 2.5rem;
  border-radius: 999px;
  background-color: rgba(201, 168, 76, 0.1);
  border: 1px solid rgba(201, 168, 76, 0.4);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-gold);
  transition: border-color 0.2s var(--ease-standard);
}
.brand:hover .brand__mark { border-color: var(--color-gold); }
.brand__name {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1;
}
.brand__name--lg { font-size: 1.875rem; text-align: center; }
.brand__tag {
  display: block;
  font-size: 0.625rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gold);
  line-height: 1;
  margin-top: 0.125rem;
}
.brand__tag--lg { text-align: center; color: rgba(201, 168, 76, 0.6); letter-spacing: 0.4em; margin-top: 0.25rem; }

.site-nav__links { display: none; align-items: center; gap: 1.75rem; }
.site-nav__actions { display: none; align-items: center; gap: 1rem; }
@media (min-width: 1024px) {
  .site-nav__links { display: flex; }
  .site-nav__actions { display: flex; }
}

.menu-toggle {
  background: none; border: none;
  color: rgba(255, 255, 255, 0.8);
  padding: 0.5rem;
  transition: color 0.2s var(--ease-standard);
}
.menu-toggle:hover { color: var(--color-gold); }
@media (min-width: 1024px) { .menu-toggle { display: none; } }
.menu-toggle__icon-close { display: none; }
.menu-toggle[aria-expanded="true"] .menu-toggle__icon-open { display: none; }
.menu-toggle[aria-expanded="true"] .menu-toggle__icon-close { display: block; }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 40;
  background-color: rgba(8, 8, 8, 0.98);
  backdrop-filter: blur(20px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s var(--ease-standard);
}
.mobile-menu.is-open { opacity: 1; pointer-events: auto; }
@media (min-width: 1024px) { .mobile-menu { display: none; } }

.mobile-menu__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 1.5rem;
  padding-inline: 2rem;
  overflow-y: auto;
  padding-block: 2rem;
}
.mobile-menu__brand { text-align: center; margin-bottom: 0.5rem; }
.mobile-menu__link {
  color: rgba(255, 255, 255, 0.8);
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  transition: color 0.2s var(--ease-standard);
}
.mobile-menu__link:hover { color: var(--color-gold); }
.mobile-menu__actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.5rem;
  width: 100%;
  max-width: 20rem;
}
.mobile-menu__actions .gold-btn,
.mobile-menu__actions .ghost-btn {
  width: 100%;
  padding-block: 0.875rem;
}