/* Reserve space for fixed nav on all pages */
body {
  padding-top: 48px;
}

/* Landing page: no top padding, hero fills the viewport */
body.has-hero-header {
  padding-top: 0;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 48px;
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 24px rgba(0, 0, 0, 0.45);
  border-bottom: 1px solid transparent;
  transition: transform 0.35s ease, opacity 0.3s ease;
}

/* On the landing page, nav starts hidden and slides in on scroll */
.has-hero-header .nav {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

.has-hero-header .nav.scrolled {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-bright);
  letter-spacing: 0.02em;
}

.nav-logo-img {
  height: 24px;
  width: auto;
  display: block;
  mix-blend-mode: screen;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.nav-links a {
  font-size: 0.8rem;
  color: var(--text-dim);
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-gh {
  color: var(--text-muted) !important;
  font-size: 0.75rem !important;
}

.nav-gh:hover {
  color: var(--text-dim) !important;
}