/* Site nav: three words over the door, filament amber. A scrim keeps them
   legible over the scene without drawing a bar across it. */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 4;
  display: flex;
  justify-content: center;
  gap: clamp(0.4rem, 3vw, 1.6rem);
  padding: 0.35rem clamp(0.5rem, 3vw, 1rem);
  font-family: var(--font-machine);
  font-size: var(--size-fine);
  letter-spacing: 0.08em;
  background: linear-gradient(to bottom, rgba(5, 2, 4, 0.82) 0%, rgba(5, 2, 4, 0.45) 60%, transparent 100%);
}

.nav a {
  color: var(--amber-dim);
  text-decoration: none;
  padding: 0.8rem 0.5rem; /* ~44px targets without reading as buttons */
  text-shadow: 0 1px 2px rgba(5, 2, 4, 0.95);
  white-space: nowrap;
}
.nav a:hover { color: var(--amber); }
.nav a[aria-current="page"] {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.nav a:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-radius: 2px;
}