.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(26, 18, 16, 0.82);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--color-divider);
  transition: border-color var(--transition-base), background var(--transition-base);
}
.nav.scrolled {
  background: rgba(26, 18, 16, 0.96);
  border-bottom-color: var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav-logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-rust);
  box-shadow: 0 0 8px var(--color-rust);
  flex-shrink: 0;
}
.nav-logo:hover {
  color: var(--color-text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  letter-spacing: 0.01em;
}
.nav-link:hover,
.nav-link.active {
  color: var(--color-text-primary);
  background: rgba(240, 228, 216, 0.06);
}
.nav-link.active {
  color: var(--color-rust-light);
}

.nav-cta {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-rust-light);
  padding: 0.4rem 1rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  text-decoration: none;
  margin-left: var(--space-sm);
}
.nav-cta:hover {
  background: var(--color-rust-glow);
  border-color: var(--color-rust);
  color: var(--color-rust-light);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  cursor: pointer;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-secondary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.nav-mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
  z-index: 999;
}
.nav-mobile-menu.open {
  display: block;
}
.nav-mobile-link {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 0.75rem var(--space-xl);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.nav-mobile-link:hover {
  color: var(--color-text-primary);
  background: var(--color-rust-glow);
}

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }
  .nav-hamburger {
    display: flex;
  }
}