/* ─── INTRO ────────────────────────────────────────────────────── */
#intro {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--obsidian);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#intro-logo {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(1.4rem, 4vw, 2.8rem);
  letter-spacing: 0.35em;
  opacity: 0;
  filter: blur(20px);
}

#intro-sub {
  margin-top: 0.75rem;
  color: var(--emerald);
  font-size: 0.65rem;
  letter-spacing: 0.55em;
  text-transform: uppercase;
  opacity: 0;
}

#intro-track {
  margin-top: 2.5rem;
  width: 200px;
  height: 1px;
  background: rgba(255,255,255,0.08);
  position: relative;
  overflow: hidden;
}

#intro-bar {
  position: absolute;
  inset-block: 0;
  left: 0;
  width: 0;
  background: var(--emerald);
  box-shadow: 0 0 12px var(--emerald);
}