/* CHIRON W16 — void black with a blue undertone, bone text, French racing blue accent */
:root {
  --bg: #04060b;
  --ink: #E9EAEE;
  --accent: #4F7BFF;
  --serif: "Space Grotesk", "Helvetica Neue", sans-serif;
  --sans: "Archivo", "Helvetica Neue", sans-serif;
}

body { font-weight: 300; }
.display { letter-spacing: 0.06em; font-weight: 600; }

/* engineering feel: tabular figures in specs and callouts */
.callout strong, .spec dd { font-variant-numeric: tabular-nums; letter-spacing: 0.04em; }

/* the explode clip drifts to a grey studio — keep overlay text legible on both */
.callout, .chapter-line {
  text-shadow: 0 1px 3px rgba(4, 6, 11, 0.9), 0 2px 18px rgba(4, 6, 11, 0.75),
    0 0 40px rgba(4, 6, 11, 0.6);
}
.callout span { opacity: 0.85; }

/* faint blue heat on the explosion chapter's first callout line */
.chapter[data-seq="explode"]:not([data-reverse]) .callout:nth-child(1) .line {
  background: linear-gradient(90deg, #4F7BFF, #9db7ff);
  opacity: 0.9;
}