.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.1rem clamp(1.25rem, 4vw, 2.5rem);
  background: rgba(5, 6, 10, 0.28);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), padding var(--dur-fast) var(--ease-out);
}

.site-nav.is-scrolled {
  background: rgba(5, 6, 10, 0.72);
  border-bottom-color: var(--line);
  padding-block: 0.75rem;
}

.site-nav .brand {
  display: flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}

.site-nav .brand-mark {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(201, 168, 106, 0.55);
  animation: nav-pulse 2.6s ease-in-out infinite;
  flex: none;
}

.nav-links {
  display: none;
  align-items: center;
  gap: clamp(1rem, 2vw, 1.9rem);
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink-dim);
  padding-block: 0.35em;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--ink);
  border-color: var(--accent-dim);
}

.nav-cta {
  display: none;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bg);
  background: linear-gradient(135deg, var(--accent) 0%, #e2c68d 100%);
  padding: 0.65em 1.35em;
  border-radius: 999px;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}

.nav-cta:hover,
.nav-cta:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px -6px rgba(201, 168, 106, 0.55);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  color: var(--ink);
  cursor: pointer;
  flex: none;
}

.nav-toggle svg {
  width: 18px;
  height: 18px;
}

.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

.nav-mobile-panel {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-nav) - 1);
  background: rgba(5, 6, 10, 0.97);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.1rem;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), visibility var(--dur-fast);
}

.nav-mobile-panel.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-mobile-panel a {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 6vw, 2.1rem);
  text-decoration: none;
  color: var(--ink);
}

.nav-mobile-panel .nav-cta {
  display: inline-block;
  margin-top: 0.5rem;
}

@keyframes nav-pulse {
  0% { box-shadow: 0 0 0 0 rgba(201, 168, 106, 0.55); }
  70% { box-shadow: 0 0 0 8px rgba(201, 168, 106, 0); }
  100% { box-shadow: 0 0 0 0 rgba(201, 168, 106, 0); }
}

@media (min-width: 900px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-block; }
  .nav-toggle { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .brand-mark { animation: none; }
  .nav-mobile-panel { transition: none; }
}