/* ═══════════════════════════════════════════
   MARQUEE — infinite horizontal type bands used as
   physical seams between chapters (BeTheBuzz-style
   repeated display type, re-voiced to SRE vocabulary).
   Content is duplicated once in the markup; the track
   translates −50% and loops. Transform-only, contained,
   paused out of viewport by marquee.js.
   ═══════════════════════════════════════════ */

.marquee {
  position: relative;
  overflow: hidden;
  padding: 34px 0;
  contain: layout paint;
  user-select: none;
}
.marquee__track {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  white-space: nowrap;
  will-change: transform;
  animation: marqueeX var(--marquee-speed, 26s) linear infinite;
}
.marquee.is-paused .marquee__track { animation-play-state: paused; }
.marquee__chunk {
  display: inline-flex;
  align-items: baseline;
  padding-right: 0.6em;
  font-family: var(--font-display);
  font-size: clamp(44px, 7.5vw, 110px);
  line-height: 0.9;
  letter-spacing: -0.01em;
}
.marquee__chunk i {
  font-family: var(--font-italic);
  font-style: italic;
}
.marquee__sep {
  margin: 0 0.35em;
  font-family: var(--font-mono);
  font-size: 0.32em;
  letter-spacing: 0.2em;
  transform: translateY(-0.6em);
}

/* dark seam band — bridges a light section into an inverted one */
.marquee--dark {
  background: linear-gradient(180deg, var(--pole-lo), #0b0b0e 55%, #0b0b0e);
  color: transparent;
  -webkit-text-stroke: 1.5px color-mix(in srgb, var(--accent-soft) 65%, transparent);
}
.marquee--dark .marquee__sep { color: var(--accent-2); -webkit-text-stroke: 0; }

/* violet identity band */
.marquee--violet {
  background: linear-gradient(120deg, #4c1d95, var(--accent) 45%, #2a1a52);
  color: rgba(255, 255, 255, 0.94);
}
.marquee--violet .marquee__chunk i { color: #ffd9d9; }
.marquee--violet .marquee__sep { color: rgba(255, 255, 255, 0.55); }

/* light hairline band — vocabulary ticker, calmer */
.marquee--light {
  padding: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-1);
  color: var(--ink-0);
}
.marquee--light .marquee__chunk {
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.4vw, 18px);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1;
}
.marquee--light .marquee__chunk i { color: var(--accent); font-style: normal; }
.marquee--light .marquee__sep { color: var(--accent-2); transform: none; }

@keyframes marqueeX {
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
}